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Diffstat (limited to 'src/Photo.vala')
| -rw-r--r-- | src/Photo.vala | 5381 |
1 files changed, 5381 insertions, 0 deletions
diff --git a/src/Photo.vala b/src/Photo.vala new file mode 100644 index 0000000..ab449dc --- /dev/null +++ b/src/Photo.vala @@ -0,0 +1,5381 @@ +/* Copyright 2009-2014 Yorba Foundation + * + * This software is licensed under the GNU LGPL (version 2.1 or later). + * See the COPYING file in this distribution. + */ + +// Specifies how pixel data is fetched from the backing file on disk. MASTER is the original +// backing photo of any supported photo file format; SOURCE is either the master or the editable +// file, that is, the appropriate reference file for user display; BASELINE is an appropriate +// file with the proviso that it may be a suitable substitute for the master and/or the editable. +// UNMODIFIED represents the photo with no edits, i.e. the head of the pipeline. +// +// In general, callers want to use the BASELINE unless requirements are specific. +public enum BackingFetchMode { + SOURCE, + BASELINE, + MASTER, + UNMODIFIED +} + +public class PhotoImportParams { + // IN: + public File file; + public File final_associated_file = null; + public ImportID import_id; + public PhotoFileSniffer.Options sniffer_options; + public string? exif_md5; + public string? thumbnail_md5; + public string? full_md5; + + // IN/OUT: + public Thumbnails? thumbnails; + + // OUT: + public PhotoRow row = new PhotoRow(); + public Gee.Collection<string>? keywords = null; + + public PhotoImportParams(File file, File? final_associated_file, ImportID import_id, + PhotoFileSniffer.Options sniffer_options, string? exif_md5, string? thumbnail_md5, string? full_md5, + Thumbnails? thumbnails = null) { + this.file = file; + this.final_associated_file = final_associated_file; + this.import_id = import_id; + this.sniffer_options = sniffer_options; + this.exif_md5 = exif_md5; + this.thumbnail_md5 = thumbnail_md5; + this.full_md5 = full_md5; + this.thumbnails = thumbnails; + } + + // Creates a placeholder import. + public PhotoImportParams.create_placeholder(File file, ImportID import_id) { + this.file = file; + this.import_id = import_id; + this.sniffer_options = PhotoFileSniffer.Options.NO_MD5; + this.exif_md5 = null; + this.thumbnail_md5 = null; + this.full_md5 = null; + this.thumbnails = null; + } +} + +public abstract class PhotoTransformationState : Object { + private bool is_broke = false; + + // This signal is fired when the Photo object can no longer accept it and reliably return to + // this state. + public virtual signal void broken() { + is_broke = true; + } + + protected PhotoTransformationState() { + } + + public bool is_broken() { + return is_broke; + } +} + +public enum Rating { + REJECTED = -1, + UNRATED = 0, + ONE = 1, + TWO = 2, + THREE = 3, + FOUR = 4, + FIVE = 5; + + public bool can_increase() { + return this < FIVE; + } + + public bool can_decrease() { + return this > REJECTED; + } + + public bool is_valid() { + return this >= REJECTED && this <= FIVE; + } + + public Rating increase() { + return can_increase() ? this + 1 : this; + } + + public Rating decrease() { + return can_decrease() ? this - 1 : this; + } + + public int serialize() { + switch (this) { + case REJECTED: + return -1; + case UNRATED: + return 0; + case ONE: + return 1; + case TWO: + return 2; + case THREE: + return 3; + case FOUR: + return 4; + case FIVE: + return 5; + default: + return 0; + } + } + + public static Rating unserialize(int value) { + if (value > FIVE) + return FIVE; + else if (value < REJECTED) + return REJECTED; + + switch (value) { + case -1: + return REJECTED; + case 0: + return UNRATED; + case 1: + return ONE; + case 2: + return TWO; + case 3: + return THREE; + case 4: + return FOUR; + case 5: + return FIVE; + default: + return UNRATED; + } + } +} + +// Photo is an abstract class that allows for applying transformations on-the-fly to a +// particular photo without modifying the backing image file. The interface allows for +// transformations to be stored persistently elsewhere or in memory until they're committed en +// masse to an image file. +public abstract class Photo : PhotoSource, Dateable { + // Need to use "thumb" rather than "photo" for historical reasons -- this name is used + // directly to load thumbnails from disk by already-existing filenames + public const string TYPENAME = "thumb"; + + private const string[] IMAGE_EXTENSIONS = { + // raster formats + "jpg", "jpeg", "jpe", + "tiff", "tif", + "png", + "gif", + "bmp", + "ppm", "pgm", "pbm", "pnm", + + // THM are JPEG thumbnails produced by some RAW cameras ... want to support the RAW + // image but not import their thumbnails + "thm", + + // less common + "tga", "ilbm", "pcx", "ecw", "img", "sid", "cd5", "fits", "pgf", + + // vector + "cgm", "svg", "odg", "eps", "pdf", "swf", "wmf", "emf", "xps", + + // 3D + "pns", "jps", "mpo", + + // RAW extensions + "3fr", "arw", "srf", "sr2", "bay", "crw", "cr2", "cap", "iiq", "eip", "dcs", "dcr", "drf", + "k25", "kdc", "dng", "erf", "fff", "mef", "mos", "mrw", "nef", "nrw", "orf", "ptx", "pef", + "pxn", "r3d", "raf", "raw", "rw2", "rwl", "rwz", "x3f", "srw" + }; + + // There are assertions in the photo pipeline to verify that the generated (or loaded) pixbuf + // is scaled properly. We have to allow for some wobble here because of rounding errors and + // precision limitations of various subsystems. Pixel-accuracy would be best, but barring that, + // need to just make sure the pixbuf is in the ballpark. + private const int SCALING_FUDGE = 64; + + // The number of seconds we should hold onto a precached copy of the original image; if + // it hasn't been accessed in this many seconds, discard it to conserve memory. + private const int PRECACHE_TIME_TO_LIVE = 180; + + // Minimum raw embedded preview size we're willing to accept; any smaller than this, and + // it's probably intended primarily for use only as a thumbnail and won't look good on the + // PhotoPage. + private const int MIN_EMBEDDED_SIZE = 1024; + + // Here, we cache the exposure time to avoid paying to access the row every time we + // need to know it. This is initially set in the constructor, and updated whenever + // the exposure time is set (please see set_exposure_time() for details). + private time_t cached_exposure_time; + + public enum Exception { + NONE = 0, + ORIENTATION = 1 << 0, + CROP = 1 << 1, + REDEYE = 1 << 2, + ADJUST = 1 << 3, + STRAIGHTEN = 1 << 4, + ALL = 0xFFFFFFFF; + + public bool prohibits(Exception exception) { + return ((this & exception) != 0); + } + + public bool allows(Exception exception) { + return ((this & exception) == 0); + } + } + + // NOTE: This class should only be instantiated when row is locked. + private class PhotoTransformationStateImpl : PhotoTransformationState { + private Photo photo; + private Orientation orientation; + private Gee.HashMap<string, KeyValueMap>? transformations; + private PixelTransformer? transformer; + private PixelTransformationBundle? adjustments; + + public PhotoTransformationStateImpl(Photo photo, Orientation orientation, + Gee.HashMap<string, KeyValueMap>? transformations, PixelTransformer? transformer, + PixelTransformationBundle? adjustments) { + this.photo = photo; + this.orientation = orientation; + this.transformations = copy_transformations(transformations); + this.transformer = transformer; + this.adjustments = adjustments; + + photo.baseline_replaced.connect(on_photo_baseline_replaced); + } + + ~PhotoTransformationStateImpl() { + photo.baseline_replaced.disconnect(on_photo_baseline_replaced); + } + + public Orientation get_orientation() { + return orientation; + } + + public Gee.HashMap<string, KeyValueMap>? get_transformations() { + return copy_transformations(transformations); + } + + public PixelTransformer? get_transformer() { + return (transformer != null) ? transformer.copy() : null; + } + + public PixelTransformationBundle? get_color_adjustments() { + return (adjustments != null) ? adjustments.copy() : null; + } + + private static Gee.HashMap<string, KeyValueMap>? copy_transformations( + Gee.HashMap<string, KeyValueMap>? original) { + if (original == null) + return null; + + Gee.HashMap<string, KeyValueMap>? clone = new Gee.HashMap<string, KeyValueMap>(); + foreach (string object in original.keys) + clone.set(object, original.get(object).copy()); + + return clone; + } + + private void on_photo_baseline_replaced() { + if (!is_broken()) + broken(); + } + } + + private class BackingReaders { + public PhotoFileReader master; + public PhotoFileReader developer; + public PhotoFileReader editable; + } + + // because fetching individual items from the database is high-overhead, store all of + // the photo row in memory + protected PhotoRow row; + private BackingPhotoRow editable = new BackingPhotoRow(); + private BackingReaders readers = new BackingReaders(); + private PixelTransformer transformer = null; + private PixelTransformationBundle adjustments = null; + // because file_title is determined by data in row, it should only be accessed when row is locked + private string file_title = null; + private FileMonitor editable_monitor = null; + private OneShotScheduler reimport_editable_scheduler = null; + private OneShotScheduler update_editable_attributes_scheduler = null; + private OneShotScheduler remove_editable_scheduler = null; + + protected bool can_rotate_now = true; + + // The first time we have to run the pipeline on an image, we'll precache + // a copy of the unscaled, unmodified version; this allows us to operate + // directly on the image data quickly without re-fetching it at the top + // of the pipeline, which can cause significant lag with larger images. + // + // This adds a small amount of (automatically garbage-collected) memory + // overhead, but greatly simplifies the pipeline, since scaling can now + // be blithely ignored, and most of the pixel operations are fast enough + // that the app remains responsive, even with 10MP images. + // + // In order to make sure we discard unneeded precaches in a timely fashion, + // we spawn a timer when the unmodified pixbuf is first precached; if the + // timer elapses and the pixbuf hasn't been needed again since then, we'll + // discard it and free up the memory. + private Gdk.Pixbuf unmodified_precached = null; + private GLib.Timer secs_since_access = null; + + // RAW only: developed backing photos. + private Gee.HashMap<RawDeveloper, BackingPhotoRow?>? developments = null; + + // Set to true if we want to develop RAW photos into new files. + public static bool develop_raw_photos_to_files { get; set; default = false; } + + // This pointer is used to determine which BackingPhotoRow in the PhotoRow to be using at + // any time. It should only be accessed -- read or write -- when row is locked. + protected BackingPhotoRow? backing_photo_row = null; + + // This is fired when the photo's editable file is replaced. The image it generates may or + // may not be the same; the altered signal is best for that. null is passed if the editable + // is being added, replaced, or removed (in the appropriate places) + public virtual signal void editable_replaced(File? old_file, File? new_file) { + } + + // Fired when one or more of the photo's RAW developments has been changed. This will only + // be fired on RAW photos, and only when a development has been added or removed. + public virtual signal void raw_development_modified() { + } + + // This is fired when the photo's baseline file (the file that generates images at the head + // of the pipeline) is replaced. Photo will make every sane effort to only fire this signal + // if the new baseline is the same image-wise (i.e. the pixbufs it generates are essentially + // the same). + public virtual signal void baseline_replaced() { + } + + // This is fired when the photo's master is reimported in place. It's fired after all changes + // to the Photo's state have been incorporated into the object and the "altered" signal has + // been fired notifying of the various details that have changed. + public virtual signal void master_reimported(PhotoMetadata? metadata) { + } + + // Like "master-reimported", but when a photo's editable has been reimported. + public virtual signal void editable_reimported(PhotoMetadata? metadata) { + } + + // Like "master-reimported" but when the baseline file has been reimported. Note that this + // could be the master file OR the editable file. + // + // See BackingFetchMode for more details. + public virtual signal void baseline_reimported(PhotoMetadata? metadata) { + } + + // Like "master-reimported" but when the source file has been reimported. Note that this could + // be the master file OR the editable file. + // + // See BackingFetchMode for more details. + public virtual signal void source_reimported(PhotoMetadata? metadata) { + } + + // The key to this implementation is that multiple instances of Photo with the + // same PhotoID cannot exist; it is up to the subclasses to ensure this. + protected Photo(PhotoRow row) { + this.row = row; + + // normalize user text + this.row.title = prep_title(this.row.title); + this.row.comment = prep_comment(this.row.comment); + + // don't need to lock the struct in the constructor (and to do so would hurt startup + // time) + readers.master = row.master.file_format.create_reader(row.master.filepath); + + // get the file title of the Photo without using a File object, skipping the separator itself + string? basename = String.sliced_at_last_char(row.master.filepath, Path.DIR_SEPARATOR); + if (basename != null) + file_title = String.sliced_at(basename, 1); + + if (is_string_empty(file_title)) + file_title = row.master.filepath; + + if (row.editable_id.id != BackingPhotoID.INVALID) { + BackingPhotoRow? e = get_backing_row(row.editable_id); + if (e != null) { + editable = e; + readers.editable = editable.file_format.create_reader(editable.filepath); + } else { + try { + PhotoTable.get_instance().detach_editable(this.row); + } catch (DatabaseError err) { + // ignored + } + + // need to remove all transformations as they're keyed to the editable's + // coordinate system + internal_remove_all_transformations(false); + } + } + + if (row.master.file_format == PhotoFileFormat.RAW) { + // Fetch development backing photos for RAW. + developments = new Gee.HashMap<RawDeveloper, BackingPhotoRow?>(); + foreach (RawDeveloper d in RawDeveloper.as_array()) { + BackingPhotoID id = row.development_ids[d]; + if (id.id != BackingPhotoID.INVALID) { + BackingPhotoRow? bpr = get_backing_row(id); + if (bpr != null) + developments.set(d, bpr); + } + } + } + + // Set up reader for developer. + if (row.master.file_format == PhotoFileFormat.RAW && developments.has_key(row.developer)) { + BackingPhotoRow r = developments.get(row.developer); + readers.developer = r.file_format.create_reader(r.filepath); + } + + // Set the backing photo state appropriately. + if (readers.editable != null) { + backing_photo_row = this.editable; + } else if (row.master.file_format != PhotoFileFormat.RAW) { + backing_photo_row = this.row.master; + } else { + // For RAW photos, the backing photo is either the editable (above) or + // the selected raw development. + if (developments.has_key(row.developer)) { + backing_photo_row = developments.get(row.developer); + } else { + // Use row's backing photo. + backing_photo_row = this.row.master; + } + } + + cached_exposure_time = this.row.exposure_time; + } + + protected virtual void notify_editable_replaced(File? old_file, File? new_file) { + editable_replaced(old_file, new_file); + } + + protected virtual void notify_raw_development_modified() { + raw_development_modified(); + } + + protected virtual void notify_baseline_replaced() { + baseline_replaced(); + } + + protected virtual void notify_master_reimported(PhotoMetadata? metadata) { + master_reimported(metadata); + } + + protected virtual void notify_editable_reimported(PhotoMetadata? metadata) { + editable_reimported(metadata); + } + + protected virtual void notify_source_reimported(PhotoMetadata? metadata) { + source_reimported(metadata); + } + + protected virtual void notify_baseline_reimported(PhotoMetadata? metadata) { + baseline_reimported(metadata); + } + + public override bool internal_delete_backing() throws Error { + bool ret = true; + File file = null; + lock (readers) { + if (readers.editable != null) + file = readers.editable.get_file(); + } + + detach_editable(true, false); + + if (get_master_file_format() == PhotoFileFormat.RAW) { + foreach (RawDeveloper d in RawDeveloper.as_array()) { + delete_raw_development(d); + } + } + + if (file != null) { + try { + ret = file.trash(null); + } catch (Error err) { + ret = false; + message("Unable to move editable %s for %s to trash: %s", file.get_path(), + to_string(), err.message); + } + } + + // Return false if parent method failed. + return base.internal_delete_backing() && ret; + } + + // Fetches the backing state. If it can't be read, the ID is flushed from the database + // for safety. If the ID is invalid or any error occurs, null is returned. + private BackingPhotoRow? get_backing_row(BackingPhotoID id) { + if (id.id == BackingPhotoID.INVALID) + return null; + + BackingPhotoRow? backing_row = null; + try { + backing_row = BackingPhotoTable.get_instance().fetch(id); + } catch (DatabaseError err) { + warning("Unable to fetch backing state for %s: %s", to_string(), err.message); + } + + if (backing_row == null) { + try { + BackingPhotoTable.get_instance().remove(id); + } catch (DatabaseError err) { + // ignored + } + return null; + } + + return backing_row; + } + + // Returns true if the given raw development was already made and the developed image + // exists on disk. + public bool is_raw_developer_complete(RawDeveloper d) { + lock (developments) { + return developments.has_key(d) && + FileUtils.test(developments.get(d).filepath, FileTest.EXISTS); + } + } + + // Determines whether a given RAW developer is available for this photo. + public bool is_raw_developer_available(RawDeveloper d) { + lock (developments) { + if (developments.has_key(d)) + return true; + } + + switch (d) { + case RawDeveloper.SHOTWELL: + return true; + + case RawDeveloper.CAMERA: + return false; + + case RawDeveloper.EMBEDDED: + try { + PhotoMetadata meta = get_master_metadata(); + uint num_previews = meta.get_preview_count(); + + if (num_previews > 0) { + PhotoPreview? prev = meta.get_preview(num_previews - 1); + + // Embedded preview could not be fetched? + if (prev == null) + return false; + + Dimensions dims = prev.get_pixel_dimensions(); + + // Largest embedded preview was an unacceptable size? + int preview_major_axis = (dims.width > dims.height) ? dims.width : dims.height; + if (preview_major_axis < MIN_EMBEDDED_SIZE) + return false; + + // Preview was a supported size, use it. + return true; + } + + // Image has no embedded preview at all. + return false; + } catch (Error e) { + debug("Error accessing embedded preview. Message: %s", e.message); + } + return false; + + default: + assert_not_reached(); + } + } + + // Reads info on a backing photo and adds it. + // Note: this function was created for importing new photos. It will not + // notify of changes to the developments. + public void add_backing_photo_for_development(RawDeveloper d, BackingPhotoRow bpr) throws Error { + import_developed_backing_photo(row, d, bpr); + lock (developments) { + developments.set(d, bpr); + } + notify_altered(new Alteration("image", "developer")); + } + + public static void import_developed_backing_photo(PhotoRow row, RawDeveloper d, + BackingPhotoRow bpr) throws Error { + File file = File.new_for_path(bpr.filepath); + FileInfo info = file.query_info(DirectoryMonitor.SUPPLIED_ATTRIBUTES, + FileQueryInfoFlags.NOFOLLOW_SYMLINKS, null); + TimeVal timestamp = info.get_modification_time(); + + PhotoFileInterrogator interrogator = new PhotoFileInterrogator( + file, PhotoFileSniffer.Options.GET_ALL); + interrogator.interrogate(); + + DetectedPhotoInformation? detected = interrogator.get_detected_photo_information(); + bpr.dim = detected.image_dim; + bpr.filesize = info.get_size(); + bpr.timestamp = timestamp.tv_sec; + bpr.original_orientation = detected.metadata != null ? detected.metadata.get_orientation() : + Orientation.TOP_LEFT; + + // Add to DB. + BackingPhotoTable.get_instance().add(bpr); + PhotoTable.get_instance().update_raw_development(row, d, bpr.id); + } + + // "Develops" a raw photo + // Not thread-safe. + private void develop_photo(RawDeveloper d) { + bool wrote_img_to_disk = false; + BackingPhotoRow bps = null; + + switch (d) { + case RawDeveloper.SHOTWELL: + try { + // Create file and prep. + bps = d.create_backing_row_for_development(row.master.filepath); + Gdk.Pixbuf? pix = null; + lock (readers) { + // Don't rotate this pixbuf before writing it out. We don't + // need to because we'll display it using the orientation + // from the parent raw file, so rotating it here would cause + // portrait images to rotate _twice_... + pix = get_master_pixbuf(Scaling.for_original(), false); + } + + if (pix == null) { + debug("Could not get preview pixbuf"); + return; + } + + // Write out the JPEG. + PhotoFileWriter writer = PhotoFileFormat.JFIF.create_writer(bps.filepath); + writer.write(pix, Jpeg.Quality.HIGH); + + // Remember that we wrote it (we'll only get here if writing + // the jpeg doesn't throw an exception). We do this because + // some cameras' output has non-spec-compliant exif segments + // larger than 64k (exiv2 can't cope with this), so saving + // metadata to the development could fail, but we want to use + // it anyway since the image portion is still valid... + wrote_img_to_disk = true; + + // Write out metadata. An exception could get thrown here as + // well, hence the separate check for being able to save the + // image above... + PhotoMetadata meta = get_master_metadata(); + PhotoFileMetadataWriter mwriter = PhotoFileFormat.JFIF.create_metadata_writer(bps.filepath); + mwriter.write_metadata(meta); + } catch (Error err) { + debug("Error developing photo: %s", err.message); + } finally { + if (wrote_img_to_disk) { + try { + // Read in backing photo info, add to DB. + add_backing_photo_for_development(d, bps); + + notify_raw_development_modified(); + } catch (Error e) { + debug("Error adding backing photo as development. Message: %s", + e.message); + } + } + } + + break; + + case RawDeveloper.CAMERA: + // No development needed. + break; + + case RawDeveloper.EMBEDDED: + try { + // Read in embedded JPEG. + PhotoMetadata meta = get_master_metadata(); + uint c = meta.get_preview_count(); + if (c <= 0) + return; + PhotoPreview? prev = meta.get_preview(c - 1); + if (prev == null) { + debug("Could not get preview from metadata"); + return; + } + + Gdk.Pixbuf? pix = prev.get_pixbuf(); + if (pix == null) { + debug("Could not get preview pixbuf"); + return; + } + + // Write out file. + bps = d.create_backing_row_for_development(row.master.filepath); + PhotoFileWriter writer = PhotoFileFormat.JFIF.create_writer(bps.filepath); + writer.write(pix, Jpeg.Quality.HIGH); + + // Remember that we wrote it (see above + // case for why this is necessary). + wrote_img_to_disk = true; + + // Write out metadata + PhotoFileMetadataWriter mwriter = PhotoFileFormat.JFIF.create_metadata_writer(bps.filepath); + mwriter.write_metadata(meta); + } catch (Error e) { + debug("Error accessing embedded preview. Message: %s", e.message); + return; + } finally { + if (wrote_img_to_disk) { + try { + // Read in backing photo info, add to DB. + add_backing_photo_for_development(d, bps); + + notify_raw_development_modified(); + } catch (Error e) { + debug("Error adding backing photo as development. Message: %s", + e.message); + } + } + } + break; + + default: + assert_not_reached(); + } + } + + // Sets the developer internally, but does not actually develop the backing file. + public void set_default_raw_developer(RawDeveloper d) { + lock (row) { + row.developer = d; + } + } + + // Sets the developer and develops the photo. + public void set_raw_developer(RawDeveloper d) { + if (get_master_file_format() != PhotoFileFormat.RAW) + return; + + // If the caller has asked for 'embedded', but there's a camera development + // available, always prefer that instead, as it's likely to be of higher + // quality and resolution. + if (is_raw_developer_available(RawDeveloper.CAMERA) && (d == RawDeveloper.EMBEDDED)) + d = RawDeveloper.CAMERA; + + // If the embedded preview is too small to be used in the PhotoPage, don't + // allow EMBEDDED to be chosen. + if (!is_raw_developer_available(RawDeveloper.EMBEDDED)) + d = RawDeveloper.SHOTWELL; + + lock (developments) { + RawDeveloper stale_raw_developer = row.developer; + + // Perform development, bail out if it doesn't work. + if (!is_raw_developer_complete(d)) { + develop_photo(d); + try { + populate_prefetched(); + } catch (Error e) { + // couldn't reload the freshly-developed image, nothing to display + return; + } + } + if (!developments.has_key(d)) + return; // we tried! + + // Disgard changes. + revert_to_master(false); + + // Switch master to the new photo. + row.developer = d; + backing_photo_row = developments.get(d); + readers.developer = backing_photo_row.file_format.create_reader(backing_photo_row.filepath); + + set_orientation(backing_photo_row.original_orientation); + + try { + PhotoTable.get_instance().update_raw_development(row, d, backing_photo_row.id); + } catch (Error e) { + warning("Error updating database: %s", e.message); + } + + // Is the 'stale' development _NOT_ a camera-supplied one? + // + // NOTE: When a raw is first developed, both 'stale' and 'incoming' developers + // will be the same, so the second test is required for correct operation. + if ((stale_raw_developer != RawDeveloper.CAMERA) && + (stale_raw_developer != row.developer)) { + // The 'stale' non-Shotwell development we're using was + // created by us, not the camera, so discard it... + delete_raw_development(stale_raw_developer); + } + + // Otherwise, don't delete the paired JPEG, since it is user/camera-created + // and is to be preserved. + } + + notify_altered(new Alteration("image", "developer")); + discard_prefetched(true); + } + + public RawDeveloper get_raw_developer() { + return row.developer; + } + + // Removes a development from the database, filesystem, etc. + // Returns true if a development was removed, otherwise false. + private bool delete_raw_development(RawDeveloper d) { + bool ret = false; + + lock (developments) { + if (!developments.has_key(d)) + return false; + + // Remove file. If this is a camera-generated JPEG, we trash it; + // otherwise, it was generated by us and should be deleted outright. + debug("Delete raw development: %s %s", this.to_string(), d.to_string()); + BackingPhotoRow bpr = developments.get(d); + if (bpr.filepath != null) { + File f = File.new_for_path(bpr.filepath); + try { + if (d == RawDeveloper.CAMERA) + f.trash(); + else + f.delete(); + } catch (Error e) { + warning("Unable to delete RAW development: %s error: %s", bpr.filepath, e.message); + } + } + + // Delete references in DB. + try { + PhotoTable.get_instance().remove_development(row, d); + BackingPhotoTable.get_instance().remove(bpr.id); + } catch (Error e) { + warning("Database error while deleting RAW development: %s", e.message); + } + + ret = developments.unset(d); + } + + notify_raw_development_modified(); + return ret; + } + + // Re-do development for photo. + public void redevelop_raw(RawDeveloper d) { + lock (developments) { + delete_raw_development(d); + RawDeveloper dev = d; + if (dev == RawDeveloper.CAMERA) + dev = RawDeveloper.EMBEDDED; + + set_raw_developer(dev); + } + } + + public override BackingFileState[] get_backing_files_state() { + BackingFileState[] backing = new BackingFileState[0]; + lock (row) { + backing += new BackingFileState.from_photo_row(row.master, row.md5); + if (has_editable()) + backing += new BackingFileState.from_photo_row(editable, null); + + if (is_developed()) { + Gee.Collection<BackingPhotoRow>? dev_rows = get_raw_development_photo_rows(); + if (dev_rows != null) { + foreach (BackingPhotoRow r in dev_rows) { + debug("adding: %s", r.filepath); + backing += new BackingFileState.from_photo_row(r, null); + } + } + } + } + + return backing; + } + + private PhotoFileReader get_backing_reader(BackingFetchMode mode) { + switch (mode) { + case BackingFetchMode.MASTER: + return get_master_reader(); + + case BackingFetchMode.BASELINE: + return get_baseline_reader(); + + case BackingFetchMode.SOURCE: + return get_source_reader(); + + case BackingFetchMode.UNMODIFIED: + if (this.get_master_file_format() == PhotoFileFormat.RAW) + return get_raw_developer_reader(); + else + return get_master_reader(); + + default: + error("Unknown backing fetch mode %s", mode.to_string()); + } + } + + private PhotoFileReader get_master_reader() { + lock (readers) { + return readers.master; + } + } + + protected PhotoFileReader? get_editable_reader() { + lock (readers) { + return readers.editable; + } + } + + // Returns a reader for the head of the pipeline. + private PhotoFileReader get_baseline_reader() { + lock (readers) { + if (readers.editable != null) + return readers.editable; + + if (readers.developer != null) + return readers.developer; + + return readers.master; + } + } + + // Returns a reader for the photo file that is the source of the image. + private PhotoFileReader get_source_reader() { + lock (readers) { + if (readers.editable != null) + return readers.editable; + + if (readers.developer != null) + return readers.developer; + + return readers.master; + } + } + + // Returns the reader used for reading the RAW development. + private PhotoFileReader get_raw_developer_reader() { + lock (readers) { + return readers.developer; + } + } + + public bool is_developed() { + lock (readers) { + return readers.developer != null; + } + } + + public bool has_editable() { + lock (readers) { + return readers.editable != null; + } + } + + public bool does_master_exist() { + lock (readers) { + return readers.master.file_exists(); + } + } + + // Returns false if the backing editable does not exist OR the photo does not have an editable + public bool does_editable_exist() { + lock (readers) { + return readers.editable != null ? readers.editable.file_exists() : false; + } + } + + public bool is_master_baseline() { + lock (readers) { + return readers.editable == null; + } + } + + public bool is_master_source() { + return !has_editable(); + } + + public bool is_editable_baseline() { + lock (readers) { + return readers.editable != null; + } + } + + public bool is_editable_source() { + return has_editable(); + } + + public BackingPhotoRow get_master_photo_row() { + lock (row) { + return row.master; + } + } + + public BackingPhotoRow? get_editable_photo_row() { + lock (row) { + // ternary doesn't work here + if (row.editable_id.is_valid()) + return editable; + else + return null; + } + } + + public Gee.Collection<BackingPhotoRow>? get_raw_development_photo_rows() { + lock (row) { + return developments != null ? developments.values : null; + } + } + + public BackingPhotoRow? get_raw_development_photo_row(RawDeveloper d) { + lock (row) { + return developments != null ? developments.get(d) : null; + } + } + + public PhotoFileFormat? get_editable_file_format() { + PhotoFileReader? reader = get_editable_reader(); + if (reader == null) + return null; + + // ternary operator doesn't work here + return reader.get_file_format(); + } + + public PhotoFileFormat get_export_format_for_parameters(ExportFormatParameters params) { + PhotoFileFormat result = PhotoFileFormat.get_system_default_format(); + + switch (params.mode) { + case ExportFormatMode.UNMODIFIED: + result = get_master_file_format(); + break; + + case ExportFormatMode.CURRENT: + result = get_best_export_file_format(); + break; + + case ExportFormatMode.SPECIFIED: + result = params.specified_format; + break; + + default: + error("get_export_format_for_parameters: unsupported export format mode"); + } + + return result; + } + + public string get_export_basename_for_parameters(ExportFormatParameters params) { + string? result = null; + + switch (params.mode) { + case ExportFormatMode.UNMODIFIED: + result = get_master_file().get_basename(); + break; + + case ExportFormatMode.CURRENT: + case ExportFormatMode.SPECIFIED: + return get_export_basename(get_export_format_for_parameters(params)); + + default: + error("get_export_basename_for_parameters: unsupported export format mode"); + } + + assert (result != null); + return result; + } + + // This method interrogates the specified file and returns a PhotoRow with all relevant + // information about it. It uses the PhotoFileInterrogator to do so. The caller should create + // a PhotoFileInterrogator with the proper options prior to calling. prepare_for_import() + // will determine what's been discovered and fill out in the PhotoRow or return the relevant + // objects and information. If Thumbnails is not null, thumbnails suitable for caching or + // framing will be returned as well. Note that this method will call interrogate() and + // perform all error-handling; the caller simply needs to construct the object. + // + // This is the acid-test; if unable to generate a pixbuf or thumbnails, that indicates the + // photo itself is bogus and should be discarded. + // + // NOTE: This method is thread-safe. + public static ImportResult prepare_for_import(PhotoImportParams params) { +#if MEASURE_IMPORT + Timer total_time = new Timer(); +#endif + File file = params.file; + + FileInfo info = null; + try { + info = file.query_info(DirectoryMonitor.SUPPLIED_ATTRIBUTES, + FileQueryInfoFlags.NOFOLLOW_SYMLINKS, null); + } catch (Error err) { + return ImportResult.FILE_ERROR; + } + + if (info.get_file_type() != FileType.REGULAR) + return ImportResult.NOT_A_FILE; + + if (!is_file_image(file)) { + message("Not importing %s: Not an image file", file.get_path()); + + return ImportResult.NOT_AN_IMAGE; + } + + if (!PhotoFileFormat.is_file_supported(file)) { + message("Not importing %s: Unsupported extension", file.get_path()); + + return ImportResult.UNSUPPORTED_FORMAT; + } + + TimeVal timestamp = info.get_modification_time(); + + // if all MD5s supplied, don't sniff for them + if (params.exif_md5 != null && params.thumbnail_md5 != null && params.full_md5 != null) + params.sniffer_options |= PhotoFileSniffer.Options.NO_MD5; + + // interrogate file for photo information + PhotoFileInterrogator interrogator = new PhotoFileInterrogator(file, params.sniffer_options); + try { + interrogator.interrogate(); + } catch (Error err) { + warning("Unable to interrogate photo file %s: %s", file.get_path(), err.message); + + return ImportResult.DECODE_ERROR; + } + + // if not detected photo information, unsupported + DetectedPhotoInformation? detected = interrogator.get_detected_photo_information(); + if (detected == null) + return ImportResult.UNSUPPORTED_FORMAT; + + // copy over supplied MD5s if provided + if ((params.sniffer_options & PhotoFileSniffer.Options.NO_MD5) != 0) { + detected.exif_md5 = params.exif_md5; + detected.thumbnail_md5 = params.thumbnail_md5; + detected.md5 = params.full_md5; + } + + Orientation orientation = Orientation.TOP_LEFT; + time_t exposure_time = 0; + string title = ""; + string comment = ""; + Rating rating = Rating.UNRATED; + +#if TRACE_MD5 + debug("importing MD5 %s: exif=%s preview=%s full=%s", file.get_path(), detected.exif_md5, + detected.thumbnail_md5, detected.md5); +#endif + + if (detected.metadata != null) { + MetadataDateTime? date_time = detected.metadata.get_exposure_date_time(); + if (date_time != null) + exposure_time = date_time.get_timestamp(); + + orientation = detected.metadata.get_orientation(); + title = detected.metadata.get_title(); + comment = detected.metadata.get_comment(); + params.keywords = detected.metadata.get_keywords(); + rating = detected.metadata.get_rating(); + } + + // verify basic mechanics of photo: RGB 8-bit encoding + if (detected.colorspace != Gdk.Colorspace.RGB + || detected.channels < 3 + || detected.bits_per_channel != 8) { + message("Not importing %s: Unsupported color format", file.get_path()); + + return ImportResult.UNSUPPORTED_FORMAT; + } + + // photo information is initially stored in database in raw, non-modified format ... this is + // especially important dealing with dimensions and orientation ... Don't trust EXIF + // dimensions, they can lie or not be present + params.row.photo_id = PhotoID(); + params.row.master.filepath = file.get_path(); + params.row.master.dim = detected.image_dim; + params.row.master.filesize = info.get_size(); + params.row.master.timestamp = timestamp.tv_sec; + params.row.exposure_time = exposure_time; + params.row.orientation = orientation; + params.row.master.original_orientation = orientation; + params.row.import_id = params.import_id; + params.row.event_id = EventID(); + params.row.transformations = null; + params.row.md5 = detected.md5; + params.row.thumbnail_md5 = detected.thumbnail_md5; + params.row.exif_md5 = detected.exif_md5; + params.row.time_created = 0; + params.row.flags = 0; + params.row.master.file_format = detected.file_format; + params.row.title = title; + params.row.comment = comment; + params.row.rating = rating; + + if (params.thumbnails != null) { + PhotoFileReader reader = params.row.master.file_format.create_reader( + params.row.master.filepath); + try { + ThumbnailCache.generate_for_photo(params.thumbnails, reader, params.row.orientation, + params.row.master.dim); + } catch (Error err) { + return ImportResult.convert_error(err, ImportResult.FILE_ERROR); + } + } + +#if MEASURE_IMPORT + debug("IMPORT: total=%lf", total_time.elapsed()); +#endif + return ImportResult.SUCCESS; + } + + public static void create_pre_import(PhotoImportParams params) { + File file = params.file; + params.row.photo_id = PhotoID(); + params.row.master.filepath = file.get_path(); + params.row.master.dim = Dimensions(0,0); + params.row.master.filesize = 0; + params.row.master.timestamp = 0; + params.row.exposure_time = 0; + params.row.orientation = Orientation.TOP_LEFT; + params.row.master.original_orientation = Orientation.TOP_LEFT; + params.row.import_id = params.import_id; + params.row.event_id = EventID(); + params.row.transformations = null; + params.row.md5 = null; + params.row.thumbnail_md5 = null; + params.row.exif_md5 = null; + params.row.time_created = 0; + params.row.flags = 0; + params.row.master.file_format = PhotoFileFormat.JFIF; + params.row.title = null; + params.row.comment = null; + params.row.rating = Rating.UNRATED; + + PhotoFileInterrogator interrogator = new PhotoFileInterrogator(params.file, params.sniffer_options); + try { + interrogator.interrogate(); + DetectedPhotoInformation? detected = interrogator.get_detected_photo_information(); + if (detected != null) + params.row.master.file_format = detected.file_format; + } catch (Error err) { + debug("Unable to interrogate photo file %s: %s", file.get_path(), err.message); + } + } + + protected BackingPhotoRow? query_backing_photo_row(File file, PhotoFileSniffer.Options options, + out DetectedPhotoInformation detected) throws Error { + detected = null; + + BackingPhotoRow backing = new BackingPhotoRow(); + // get basic file information + FileInfo info = null; + try { + info = file.query_info(DirectoryMonitor.SUPPLIED_ATTRIBUTES, + FileQueryInfoFlags.NOFOLLOW_SYMLINKS, null); + } catch (Error err) { + critical("Unable to read file information for %s: %s", file.get_path(), err.message); + + return null; + } + + // sniff photo information + PhotoFileInterrogator interrogator = new PhotoFileInterrogator(file, options); + interrogator.interrogate(); + detected = interrogator.get_detected_photo_information(); + if (detected == null) { + critical("Photo update: %s no longer a recognized image", to_string()); + + return null; + } + + TimeVal modification_time = info.get_modification_time(); + + backing.filepath = file.get_path(); + backing.timestamp = modification_time.tv_sec; + backing.filesize = info.get_size(); + backing.file_format = detected.file_format; + backing.dim = detected.image_dim; + backing.original_orientation = detected.metadata != null + ? detected.metadata.get_orientation() : Orientation.TOP_LEFT; + + return backing; + } + + public abstract class ReimportMasterState { + } + + private class ReimportMasterStateImpl : ReimportMasterState { + public PhotoRow row = new PhotoRow(); + public PhotoMetadata? metadata; + public string[] alterations; + public bool metadata_only = false; + + public ReimportMasterStateImpl(PhotoRow row, PhotoMetadata? metadata, string[] alterations) { + this.row = row; + this.metadata = metadata; + this.alterations = alterations; + } + } + + public abstract class ReimportEditableState { + } + + private class ReimportEditableStateImpl : ReimportEditableState { + public BackingPhotoRow backing_state = new BackingPhotoRow(); + public PhotoMetadata? metadata; + public bool metadata_only = false; + + public ReimportEditableStateImpl(BackingPhotoRow backing_state, PhotoMetadata? metadata) { + this.backing_state = backing_state; + this.metadata = metadata; + } + } + + public abstract class ReimportRawDevelopmentState { + } + + private class ReimportRawDevelopmentStateImpl : ReimportRawDevelopmentState { + public class DevToReimport { + public BackingPhotoRow backing = new BackingPhotoRow(); + public PhotoMetadata? metadata; + + public DevToReimport(BackingPhotoRow backing, PhotoMetadata? metadata) { + this.backing = backing; + this.metadata = metadata; + } + } + + public Gee.Collection<DevToReimport> list = new Gee.ArrayList<DevToReimport>(); + public bool metadata_only = false; + + public ReimportRawDevelopmentStateImpl() { + } + + public void add(BackingPhotoRow backing, PhotoMetadata? metadata) { + list.add(new DevToReimport(backing, metadata)); + } + + public int get_size() { + return list.size; + } + } + + // This method is thread-safe. If returns false the photo should be marked offline (in the + // main UI thread). + public bool prepare_for_reimport_master(out ReimportMasterState reimport_state) throws Error { + reimport_state = null; + + File file = get_master_reader().get_file(); + + DetectedPhotoInformation detected; + BackingPhotoRow? backing = query_backing_photo_row(file, PhotoFileSniffer.Options.GET_ALL, + out detected); + if (backing == null) { + warning("Unable to retrieve photo state from %s for reimport", file.get_path()); + return false; + } + + // verify basic mechanics of photo: RGB 8-bit encoding + if (detected.colorspace != Gdk.Colorspace.RGB + || detected.channels < 3 + || detected.bits_per_channel != 8) { + warning("Not re-importing %s: Unsupported color format", file.get_path()); + + return false; + } + + // start with existing row and update appropriate fields + PhotoRow updated_row = new PhotoRow(); + lock (row) { + updated_row = row; + } + + // build an Alteration list for the relevant changes + string[] list = new string[0]; + + if (updated_row.md5 != detected.md5) + list += "metadata:md5"; + + if (updated_row.master.original_orientation != backing.original_orientation) { + list += "image:orientation"; + updated_row.master.original_orientation = backing.original_orientation; + } + + if (detected.metadata != null) { + MetadataDateTime? date_time = detected.metadata.get_exposure_date_time(); + if (date_time != null && updated_row.exposure_time != date_time.get_timestamp()) + list += "metadata:exposure-time"; + + if (updated_row.title != detected.metadata.get_title()) + list += "metadata:name"; + + if (updated_row.comment != detected.metadata.get_comment()) + list += "metadata:comment"; + + if (updated_row.rating != detected.metadata.get_rating()) + list += "metadata:rating"; + } + + updated_row.master = backing; + updated_row.md5 = detected.md5; + updated_row.exif_md5 = detected.exif_md5; + updated_row.thumbnail_md5 = detected.thumbnail_md5; + + PhotoMetadata? metadata = null; + if (detected.metadata != null) { + metadata = detected.metadata; + + MetadataDateTime? date_time = detected.metadata.get_exposure_date_time(); + if (date_time != null) + updated_row.exposure_time = date_time.get_timestamp(); + + updated_row.title = detected.metadata.get_title(); + updated_row.comment = detected.metadata.get_comment(); + updated_row.rating = detected.metadata.get_rating(); + } + + reimport_state = new ReimportMasterStateImpl(updated_row, metadata, list); + + return true; + } + + protected abstract void apply_user_metadata_for_reimport(PhotoMetadata metadata); + + // This method is not thread-safe and should be called in the main thread. + public void finish_reimport_master(ReimportMasterState state) throws DatabaseError { + ReimportMasterStateImpl reimport_state = (ReimportMasterStateImpl) state; + + PhotoTable.get_instance().reimport(reimport_state.row); + + lock (row) { + // Copy row while preserving reference to master. + BackingPhotoRow original_master = row.master; + row = reimport_state.row; + row.master = original_master; + row.master.copy_from(reimport_state.row.master); + if (!reimport_state.metadata_only) + internal_remove_all_transformations(false); + } + + if (reimport_state.metadata != null) + apply_user_metadata_for_reimport(reimport_state.metadata); + + if (!reimport_state.metadata_only) { + reimport_state.alterations += "image:master"; + if (is_master_baseline()) + reimport_state.alterations += "image:baseline"; + } + + if (reimport_state.alterations.length > 0) + notify_altered(new Alteration.from_array(reimport_state.alterations)); + + notify_master_reimported(reimport_state.metadata); + + if (is_master_baseline()) + notify_baseline_reimported(reimport_state.metadata); + + if (is_master_source()) + notify_source_reimported(reimport_state.metadata); + } + + // Verifies a file for reimport. Returns the file's detected photo info. + private bool verify_file_for_reimport(File file, out BackingPhotoRow backing, + out DetectedPhotoInformation detected) throws Error { + backing = query_backing_photo_row(file, PhotoFileSniffer.Options.NO_MD5, + out detected); + if (backing == null) { + return false; + } + + // verify basic mechanics of photo: RGB 8-bit encoding + if (detected.colorspace != Gdk.Colorspace.RGB + || detected.channels < 3 + || detected.bits_per_channel != 8) { + warning("Not re-importing %s: Unsupported color format", file.get_path()); + + return false; + } + + return true; + } + + // This method is thread-safe. Returns false if the photo has no associated editable. + public bool prepare_for_reimport_editable(out ReimportEditableState state) throws Error { + state = null; + + File? file = get_editable_file(); + if (file == null) + return false; + + DetectedPhotoInformation detected; + BackingPhotoRow backing; + if (!verify_file_for_reimport(file, out backing, out detected)) + return false; + + state = new ReimportEditableStateImpl(backing, detected.metadata); + + return true; + } + + // This method is not thread-safe. It should be called by the main thread. + public void finish_reimport_editable(ReimportEditableState state) throws DatabaseError { + BackingPhotoID editable_id = get_editable_id(); + if (editable_id.is_invalid()) + return; + + ReimportEditableStateImpl reimport_state = (ReimportEditableStateImpl) state; + + if (!reimport_state.metadata_only) { + BackingPhotoTable.get_instance().update(reimport_state.backing_state); + + lock (row) { + editable = reimport_state.backing_state; + set_orientation(reimport_state.backing_state.original_orientation); + internal_remove_all_transformations(false); + } + } else { + set_orientation(reimport_state.backing_state.original_orientation); + } + + if (reimport_state.metadata != null) { + set_title(reimport_state.metadata.get_title()); + set_comment(reimport_state.metadata.get_comment()); + set_rating(reimport_state.metadata.get_rating()); + apply_user_metadata_for_reimport(reimport_state.metadata); + } + + string list = "metadata:name,image:orientation,metadata:rating,metadata:exposure-time"; + if (!reimport_state.metadata_only) + list += "image:editable,image:baseline"; + + notify_altered(new Alteration.from_list(list)); + + notify_editable_reimported(reimport_state.metadata); + + if (is_editable_baseline()) + notify_baseline_reimported(reimport_state.metadata); + + if (is_editable_source()) + notify_source_reimported(reimport_state.metadata); + } + + // This method is thread-safe. Returns false if the photo has no associated RAW developments. + public bool prepare_for_reimport_raw_development(out ReimportRawDevelopmentState state) throws Error { + state = null; + + Gee.Collection<File>? files = get_raw_developer_files(); + if (files == null) + return false; + + ReimportRawDevelopmentStateImpl reimport_state = new ReimportRawDevelopmentStateImpl(); + + foreach (File file in files) { + DetectedPhotoInformation detected; + BackingPhotoRow backing; + if (!verify_file_for_reimport(file, out backing, out detected)) + continue; + + reimport_state.add(backing, detected.metadata); + } + + state = reimport_state; + return reimport_state.get_size() > 0; + } + + // This method is not thread-safe. It should be called by the main thread. + public void finish_reimport_raw_development(ReimportRawDevelopmentState state) throws DatabaseError { + if (this.get_master_file_format() != PhotoFileFormat.RAW) + return; + + ReimportRawDevelopmentStateImpl reimport_state = (ReimportRawDevelopmentStateImpl) state; + + foreach (ReimportRawDevelopmentStateImpl.DevToReimport dev in reimport_state.list) { + if (!reimport_state.metadata_only) { + BackingPhotoTable.get_instance().update(dev.backing); + + lock (row) { + // Refresh raw developments. + foreach (RawDeveloper d in RawDeveloper.as_array()) { + BackingPhotoID id = row.development_ids[d]; + if (id.id != BackingPhotoID.INVALID) { + BackingPhotoRow? bpr = get_backing_row(id); + if (bpr != null) + developments.set(d, bpr); + } + } + } + } + } + + string list = "metadata:name,image:orientation,metadata:rating,metadata:exposure-time"; + if (!reimport_state.metadata_only) + list += "image:editable,image:baseline"; + + notify_altered(new Alteration.from_list(list)); + + notify_raw_development_modified(); + } + + public override string get_typename() { + return TYPENAME; + } + + public override int64 get_instance_id() { + return get_photo_id().id; + } + + public override string get_source_id() { + // Because of historical reasons, need to format Photo's source ID without a dash for + // ThumbnailCache. Note that any future routine designed to tear a source ID apart and + // locate by typename will need to account for this exception. + return ("%s%016" + int64.FORMAT_MODIFIER + "x").printf(get_typename(), get_instance_id()); + } + + // Use this only if the master file's modification time has been changed (i.e. touched) + public void set_master_timestamp(FileInfo info) { + TimeVal modification = info.get_modification_time(); + + try { + lock (row) { + if (row.master.timestamp == modification.tv_sec) + return; + + PhotoTable.get_instance().update_timestamp(row.photo_id, modification.tv_sec); + row.master.timestamp = modification.tv_sec; + } + } catch (DatabaseError err) { + AppWindow.database_error(err); + + return; + } + + if (is_master_baseline()) + notify_altered(new Alteration.from_list("metadata:master-timestamp,metadata:baseline-timestamp")); + else + notify_altered(new Alteration("metadata", "master-timestamp")); + } + + // Use this only if the editable file's modification time has been changed (i.e. touched) + public void update_editable_modification_time(FileInfo info) throws DatabaseError { + TimeVal modification = info.get_modification_time(); + + bool altered = false; + lock (row) { + if (row.editable_id.is_valid() && editable.timestamp != modification.tv_sec) { + BackingPhotoTable.get_instance().update_timestamp(row.editable_id, + modification.tv_sec); + editable.timestamp = modification.tv_sec; + altered = true; + } + } + + if (altered) + notify_altered(new Alteration.from_list("metadata:editable-timestamp,metadata:baseline-timestamp")); + } + + // Most useful if the appropriate SourceCollection is frozen while calling this. + public static void update_many_editable_timestamps(Gee.Map<Photo, FileInfo> map) + throws DatabaseError { + DatabaseTable.begin_transaction(); + foreach (Photo photo in map.keys) + photo.update_editable_modification_time(map.get(photo)); + DatabaseTable.commit_transaction(); + } + + public override PhotoFileFormat get_preferred_thumbnail_format() { + return (get_file_format().can_write_image()) ? get_file_format() : + PhotoFileFormat.get_system_default_format(); + } + + public override Gdk.Pixbuf? create_thumbnail(int scale) throws Error { + return get_pixbuf(Scaling.for_best_fit(scale, true)); + } + + public static bool is_file_image(File file) { + // if it's a supported image file, by definition it's an image file, otherwise check the + // master list of common image extensions (checking this way allows for extensions to be + // added to various PhotoFileFormats without having to also add them to IMAGE_EXTENSIONS) + return PhotoFileFormat.is_file_supported(file) + ? true : is_extension_found(file.get_basename(), IMAGE_EXTENSIONS); + } + + private static bool is_extension_found(string basename, string[] extensions) { + string name, ext; + disassemble_filename(basename, out name, out ext); + if (ext == null) + return false; + + // treat extensions as case-insensitive + ext = ext.down(); + + // search supported list + foreach (string extension in extensions) { + if (ext == extension) + return true; + } + + return false; + } + + // This is not thread-safe. Obviously, at least one field must be non-null for this to be + // effective, although there is no guarantee that any one will be sufficient. file_format + // should be UNKNOWN if not to require matching file formats. + public static bool is_duplicate(File? file, string? thumbnail_md5, string? full_md5, + PhotoFileFormat file_format) { +#if !NO_DUPE_DETECTION + return PhotoTable.get_instance().has_duplicate(file, thumbnail_md5, full_md5, file_format); +#else + return false; +#endif + } + + protected static PhotoID[]? get_duplicate_ids(File? file, string? thumbnail_md5, string? full_md5, + PhotoFileFormat file_format) { +#if !NO_DUPE_DETECTION + return PhotoTable.get_instance().get_duplicate_ids(file, thumbnail_md5, full_md5, file_format); +#else + return null; +#endif + } + + // Conforms to GetDatabaseSourceKey + public static int64 get_photo_key(DataSource source) { + return ((LibraryPhoto) source).get_photo_id().id; + } + + // Data element accessors ... by making these thread-safe, and by the remainder of this class + // (and subclasses) accessing row *only* through these, helps ensure this object is suitable + // for threads. This implementation is specifically for PixbufCache to work properly. + // + // Much of the setter's thread-safety (especially in regard to writing to the database) is + // that there is a single Photo object per row of the database. The PhotoTable is accessed + // elsewhere in the system (usually for aggregate and search functions). Those would need to + // be factored and locked in order to guarantee full thread safety. + // + // Also note there is a certain amount of paranoia here. Many of PhotoRow's elements are + // currently static, with no setters to change them. However, since some of these may become + // mutable in the future, the entire structure is locked. If performance becomes an issue, + // more fine-tuned locking may be implemented -- another reason to *only* use these getters + // and setters inside this class. + + public override File get_file() { + return get_source_reader().get_file(); + } + + // This should only be used when the photo's master backing file has been renamed; if it's been + // altered, use update(). + public void set_master_file(File file) { + string filepath = file.get_path(); + + bool altered = false; + bool is_baseline = false; + bool is_source = false; + bool name_changed = false; + File? old_file = null; + try { + lock (row) { + lock (readers) { + old_file = readers.master.get_file(); + if (!file.equal(old_file)) { + PhotoTable.get_instance().set_filepath(get_photo_id(), filepath); + + row.master.filepath = filepath; + file_title = file.get_basename(); + readers.master = row.master.file_format.create_reader(filepath); + + altered = true; + is_baseline = is_master_baseline(); + is_source = is_master_source(); + name_changed = is_string_empty(row.title) + && old_file.get_basename() != file.get_basename(); + } + } + } + } catch (DatabaseError err) { + AppWindow.database_error(err); + } + + if (altered) { + notify_master_replaced(old_file, file); + + if (is_baseline) + notify_baseline_replaced(); + + string[] alteration_list = new string[0]; + alteration_list += "backing:master"; + + // because the name of the photo is determined by its file title if no user title is present, + // signal metadata has altered + if (name_changed) + alteration_list += "metadata:name"; + + if (is_source) + alteration_list += "backing:source"; + + if (is_baseline) + alteration_list += "backing:baseline"; + + notify_altered(new Alteration.from_array(alteration_list)); + } + } + + // This should only be used when the photo's editable file has been renamed. If it's been + // altered, use update(). DO NOT USE THIS TO ATTACH A NEW EDITABLE FILE TO THE PHOTO. + public void set_editable_file(File file) { + string filepath = file.get_path(); + + bool altered = false; + bool is_baseline = false; + bool is_source = false; + File? old_file = null; + try { + lock (row) { + lock (readers) { + old_file = (readers.editable != null) ? readers.editable.get_file() : null; + if (old_file != null && !old_file.equal(file)) { + BackingPhotoTable.get_instance().set_filepath(row.editable_id, filepath); + + editable.filepath = filepath; + readers.editable = editable.file_format.create_reader(filepath); + + altered = true; + is_baseline = is_editable_baseline(); + is_source = is_editable_source(); + } + } + } + } catch (DatabaseError err) { + AppWindow.database_error(err); + } + + if (altered) { + notify_editable_replaced(old_file, file); + + if (is_baseline) + notify_baseline_replaced(); + + string[] alteration_list = new string[0]; + alteration_list += "backing:editable"; + + if (is_baseline) + alteration_list += "backing:baseline"; + + if (is_source) + alteration_list += "backing:source"; + + notify_altered(new Alteration.from_array(alteration_list)); + } + } + + // Also makes sense to freeze the SourceCollection during this operation. + public static void set_many_editable_file(Gee.Map<Photo, File> map) throws DatabaseError { + DatabaseTable.begin_transaction(); + + Gee.MapIterator<Photo, File> map_iter = map.map_iterator(); + while (map_iter.next()) + map_iter.get_key().set_editable_file(map_iter.get_value()); + + DatabaseTable.commit_transaction(); + } + + // Returns the file generating pixbufs, that is, the baseline if present, the backing + // file if not. + public File get_actual_file() { + return get_baseline_reader().get_file(); + } + + public override File get_master_file() { + return get_master_reader().get_file(); + } + + public File? get_editable_file() { + PhotoFileReader? reader = get_editable_reader(); + + return reader != null ? reader.get_file() : null; + } + + public Gee.Collection<File>? get_raw_developer_files() { + if (get_master_file_format() != PhotoFileFormat.RAW) + return null; + + Gee.ArrayList<File> ret = new Gee.ArrayList<File>(); + lock (row) { + foreach (BackingPhotoRow row in developments.values) + ret.add(File.new_for_path(row.filepath)); + } + + return ret; + } + + public File get_source_file() { + return get_source_reader().get_file(); + } + + public PhotoFileFormat get_file_format() { + lock (row) { + return backing_photo_row.file_format; + } + } + + public PhotoFileFormat get_best_export_file_format() { + PhotoFileFormat file_format = get_file_format(); + if (!file_format.can_write()) + file_format = PhotoFileFormat.get_system_default_format(); + + return file_format; + } + + public PhotoFileFormat get_master_file_format() { + lock (row) { + return readers.master.get_file_format(); + } + } + + public override time_t get_timestamp() { + lock (row) { + return backing_photo_row.timestamp; + } + } + + public PhotoID get_photo_id() { + lock (row) { + return row.photo_id; + } + } + + // This is NOT thread-safe. + public override inline EventID get_event_id() { + return row.event_id; + } + + // This is NOT thread-safe. + public inline int64 get_raw_event_id() { + return row.event_id.id; + } + + public override ImportID get_import_id() { + lock (row) { + return row.import_id; + } + } + + protected BackingPhotoID get_editable_id() { + lock (row) { + return row.editable_id; + } + } + + public override string get_master_md5() { + lock (row) { + return row.md5; + } + } + + // Flags' meanings are determined by subclasses. Top 16 flags (0xFFFF000000000000) reserved + // for Photo. + public uint64 get_flags() { + lock (row) { + return row.flags; + } + } + + private void notify_flags_altered(Alteration? additional_alteration) { + Alteration alteration = new Alteration("metadata", "flags"); + if (additional_alteration != null) + alteration = alteration.compress(additional_alteration); + + notify_altered(alteration); + } + + public uint64 replace_flags(uint64 flags, Alteration? additional_alteration = null) { + bool committed; + lock (row) { + committed = PhotoTable.get_instance().replace_flags(get_photo_id(), flags); + if (committed) + row.flags = flags; + } + + if (committed) + notify_flags_altered(additional_alteration); + + return flags; + } + + public bool is_flag_set(uint64 mask) { + lock (row) { + return internal_is_flag_set(row.flags, mask); + } + } + + public uint64 add_flags(uint64 mask, Alteration? additional_alteration = null) { + uint64 flags = 0; + + bool committed = false; + lock (row) { + flags = internal_add_flags(row.flags, mask); + if (row.flags != flags) { + committed = PhotoTable.get_instance().replace_flags(get_photo_id(), flags); + if (committed) + row.flags = flags; + } + } + + if (committed) + notify_flags_altered(additional_alteration); + + return flags; + } + + public uint64 remove_flags(uint64 mask, Alteration? additional_alteration = null) { + uint64 flags = 0; + + bool committed = false; + lock (row) { + flags = internal_remove_flags(row.flags, mask); + if (row.flags != flags) { + committed = PhotoTable.get_instance().replace_flags(get_photo_id(), flags); + if (committed) + row.flags = flags; + } + } + + if (committed) + notify_flags_altered(additional_alteration); + + return flags; + } + + public uint64 add_remove_flags(uint64 add, uint64 remove, Alteration? additional_alteration = null) { + uint64 flags = 0; + + bool committed = false; + lock (row) { + flags = (row.flags | add) & ~remove; + if (row.flags != flags) { + committed = PhotoTable.get_instance().replace_flags(get_photo_id(), flags); + if (committed) + row.flags = flags; + } + } + + if (committed) + notify_flags_altered(additional_alteration); + + return flags; + } + + public static void add_remove_many_flags(Gee.Collection<Photo>? add, uint64 add_mask, + Alteration? additional_add_alteration, Gee.Collection<Photo>? remove, uint64 remove_mask, + Alteration? additional_remove_alteration) throws DatabaseError { + DatabaseTable.begin_transaction(); + + if (add != null) { + foreach (Photo photo in add) + photo.add_flags(add_mask, additional_add_alteration); + } + + if (remove != null) { + foreach (Photo photo in remove) + photo.remove_flags(remove_mask, additional_remove_alteration); + } + + DatabaseTable.commit_transaction(); + } + + public uint64 toggle_flags(uint64 mask, Alteration? additional_alteration = null) { + uint64 flags = 0; + + bool committed = false; + lock (row) { + flags = row.flags ^ mask; + if (row.flags != flags) { + committed = PhotoTable.get_instance().replace_flags(get_photo_id(), flags); + if (committed) + row.flags = flags; + } + } + + if (committed) + notify_flags_altered(additional_alteration); + + return flags; + } + + public bool is_master_metadata_dirty() { + lock (row) { + return row.metadata_dirty; + } + } + + public void set_master_metadata_dirty(bool dirty) throws DatabaseError { + bool committed = false; + lock (row) { + if (row.metadata_dirty != dirty) { + PhotoTable.get_instance().set_metadata_dirty(get_photo_id(), dirty); + row.metadata_dirty = dirty; + committed = true; + } + } + + if (committed) + notify_altered(new Alteration("metadata", "master-dirty")); + } + + public override Rating get_rating() { + lock (row) { + return row.rating; + } + } + + public override void set_rating(Rating rating) { + bool committed = false; + + lock (row) { + if (rating != row.rating && rating.is_valid()) { + committed = PhotoTable.get_instance().set_rating(get_photo_id(), rating); + if (committed) + row.rating = rating; + } + } + + if (committed) + notify_altered(new Alteration("metadata", "rating")); + } + + public override void increase_rating() { + lock (row) { + set_rating(row.rating.increase()); + } + } + + public override void decrease_rating() { + lock (row) { + set_rating(row.rating.decrease()); + } + } + + protected override void commit_backlinks(SourceCollection? sources, string? backlinks) { + // For now, only one link state may be stored in the database ... if this turns into a + // problem, will use SourceCollection to determine where to store it. + + try { + PhotoTable.get_instance().update_backlinks(get_photo_id(), backlinks); + lock (row) { + row.backlinks = backlinks; + } + } catch (DatabaseError err) { + warning("Unable to update link state for %s: %s", to_string(), err.message); + } + + // Note: *Not* firing altered or metadata_altered signal because link_state is not a + // property that's available to users of Photo. Persisting it as a mechanism for deaing + // with unlink/relink properly. + } + + protected override bool set_event_id(EventID event_id) { + lock (row) { + bool committed = PhotoTable.get_instance().set_event(row.photo_id, event_id); + + if (committed) + row.event_id = event_id; + + return committed; + } + } + + public override string to_string() { + return "[%s] %s%s".printf(get_photo_id().id.to_string(), get_master_reader().get_filepath(), + !is_master_baseline() ? " (" + get_actual_file().get_path() + ")" : ""); + } + + public override bool equals(DataSource? source) { + // Primary key is where the rubber hits the road + Photo? photo = source as Photo; + if (photo != null) { + PhotoID photo_id = get_photo_id(); + PhotoID other_photo_id = photo.get_photo_id(); + + if (this != photo && photo_id.id != PhotoID.INVALID) { + assert(photo_id.id != other_photo_id.id); + } + } + + return base.equals(source); + } + + // used to update the database after an internal metadata exif write + private void file_exif_updated() { + File file = get_file(); + + FileInfo info = null; + try { + info = file.query_info(DirectoryMonitor.SUPPLIED_ATTRIBUTES, + FileQueryInfoFlags.NOFOLLOW_SYMLINKS, null); + } catch (Error err) { + error("Unable to read file information for %s: %s", to_string(), err.message); + } + + TimeVal timestamp = info.get_modification_time(); + + // interrogate file for photo information + PhotoFileInterrogator interrogator = new PhotoFileInterrogator(file); + try { + interrogator.interrogate(); + } catch (Error err) { + warning("Unable to interrogate photo file %s: %s", file.get_path(), err.message); + } + + DetectedPhotoInformation? detected = interrogator.get_detected_photo_information(); + if (detected == null) { + critical("file_exif_updated: %s no longer an image", to_string()); + + return; + } + + bool success; + lock (row) { + success = PhotoTable.get_instance().master_exif_updated(get_photo_id(), info.get_size(), + timestamp.tv_sec, detected.md5, detected.exif_md5, detected.thumbnail_md5, row); + } + + if (success) + notify_altered(new Alteration.from_list("metadata:exif,metadata:md5")); + } + + // PhotoSource + + public override uint64 get_filesize() { + lock (row) { + return backing_photo_row.filesize; + } + } + + public override uint64 get_master_filesize() { + lock (row) { + return row.master.filesize; + } + } + + public uint64 get_editable_filesize() { + lock (row) { + return editable.filesize; + } + } + + public override time_t get_exposure_time() { + return cached_exposure_time; + } + + public override string get_basename() { + lock (row) { + return file_title; + } + } + + public override string? get_title() { + lock (row) { + return row.title; + } + } + + public override string? get_comment() { + lock (row) { + return row.comment; + } + } + + public override void set_title(string? title) { + string? new_title = prep_title(title); + + bool committed = false; + lock (row) { + if (new_title == row.title) + return; + + committed = PhotoTable.get_instance().set_title(row.photo_id, new_title); + if (committed) + row.title = new_title; + } + + if (committed) + notify_altered(new Alteration("metadata", "name")); + } + + public override bool set_comment(string? comment) { + string? new_comment = prep_comment(comment); + + bool committed = false; + lock (row) { + if (new_comment == row.comment) + return true; + + committed = PhotoTable.get_instance().set_comment(row.photo_id, new_comment); + if (committed) + row.comment = new_comment; + } + + if (committed) + notify_altered(new Alteration("metadata", "comment")); + + return committed; + } + + public void set_import_id(ImportID import_id) { + DatabaseError dberr = null; + lock (row) { + try { + PhotoTable.get_instance().set_import_id(row.photo_id, import_id); + row.import_id = import_id; + } catch (DatabaseError err) { + dberr = err; + } + } + + if (dberr == null) + notify_altered(new Alteration("metadata", "import-id")); + else + warning("Unable to write import ID for %s: %s", to_string(), dberr.message); + } + + public void set_title_persistent(string? title) throws Error { + PhotoFileReader source = get_source_reader(); + + // Try to write to backing file + if (!source.get_file_format().can_write_metadata()) { + warning("No photo file writer available for %s", source.get_filepath()); + + set_title(title); + + return; + } + + PhotoMetadata metadata = source.read_metadata(); + metadata.set_title(title); + + PhotoFileMetadataWriter writer = source.create_metadata_writer(); + LibraryMonitor.blacklist_file(source.get_file(), "Photo.set_persistent_title"); + try { + writer.write_metadata(metadata); + } finally { + LibraryMonitor.unblacklist_file(source.get_file()); + } + + set_title(title); + + file_exif_updated(); + } + + public void set_comment_persistent(string? comment) throws Error { + PhotoFileReader source = get_source_reader(); + + // Try to write to backing file + if (!source.get_file_format().can_write_metadata()) { + warning("No photo file writer available for %s", source.get_filepath()); + + set_comment(comment); + + return; + } + + PhotoMetadata metadata = source.read_metadata(); + metadata.set_comment(comment); + + PhotoFileMetadataWriter writer = source.create_metadata_writer(); + LibraryMonitor.blacklist_file(source.get_file(), "Photo.set_persistent_comment"); + try { + writer.write_metadata(metadata); + } finally { + LibraryMonitor.unblacklist_file(source.get_file()); + } + + set_comment(comment); + + file_exif_updated(); + } + + public void set_exposure_time(time_t time) { + bool committed; + lock (row) { + committed = PhotoTable.get_instance().set_exposure_time(row.photo_id, time); + if (committed) { + row.exposure_time = time; + cached_exposure_time = time; + } + } + + if (committed) + notify_altered(new Alteration("metadata", "exposure-time")); + } + + public void set_exposure_time_persistent(time_t time) throws Error { + PhotoFileReader source = get_source_reader(); + + // Try to write to backing file + if (!source.get_file_format().can_write_metadata()) { + warning("No photo file writer available for %s", source.get_filepath()); + + set_exposure_time(time); + + return; + } + + PhotoMetadata metadata = source.read_metadata(); + metadata.set_exposure_date_time(new MetadataDateTime(time)); + + PhotoFileMetadataWriter writer = source.create_metadata_writer(); + LibraryMonitor.blacklist_file(source.get_file(), "Photo.set_exposure_time_persistent"); + try { + writer.write_metadata(metadata); + } finally { + LibraryMonitor.unblacklist_file(source.get_file()); + } + + set_exposure_time(time); + + file_exif_updated(); + } + + /** + * @brief Returns the width and height of the Photo after various + * arbitrary stages of the pipeline have been applied in + * the same order they're applied in get_pixbuf_with_options. + * With no argument passed, it works exactly like the + * previous incarnation did. + * + * @param disallowed_steps Which pipeline steps should NOT + * be taken into account when computing image dimensions + * (matching the convention set by get_pixbuf_with_options()). + * Pipeline steps that do not affect the image geometry are + * ignored. + */ + public override Dimensions get_dimensions(Exception disallowed_steps = Exception.NONE) { + // The raw dimensions of the incoming image prior to the pipeline. + Dimensions returned_dims = get_raw_dimensions(); + + // Compute how much the image would be resized by after rotating and/or mirroring. + if (disallowed_steps.allows(Exception.ORIENTATION)) { + Orientation ori_tmp = get_orientation(); + + // Is this image rotated 90 or 270 degrees? + switch (ori_tmp) { + case Orientation.LEFT_TOP: + case Orientation.RIGHT_TOP: + case Orientation.LEFT_BOTTOM: + case Orientation.RIGHT_BOTTOM: + // Yes, swap width and height of raw dimensions. + int width_tmp = returned_dims.width; + + returned_dims.width = returned_dims.height; + returned_dims.height = width_tmp; + break; + + default: + // No, only mirrored or rotated 180; do nothing. + break; + } + } + + // Compute how much the image would be resized by after straightening. + if (disallowed_steps.allows(Exception.STRAIGHTEN)) { + double x_size, y_size; + double angle = 0.0; + + get_straighten(out angle); + + compute_arb_rotated_size(returned_dims.width, returned_dims.height, angle, out x_size, out y_size); + + returned_dims.width = (int) (x_size); + returned_dims.height = (int) (y_size); + } + + // Compute how much the image would be resized by after cropping. + if (disallowed_steps.allows(Exception.CROP)) { + Box crop; + if (get_crop(out crop, disallowed_steps)) { + returned_dims = crop.get_dimensions(); + } + } + return returned_dims; + } + + // This method *must* be called with row locked. + private void locked_create_adjustments_from_data() { + adjustments = new PixelTransformationBundle(); + + KeyValueMap map = get_transformation("adjustments"); + if (map == null) + adjustments.set_to_identity(); + else + adjustments.load(map); + + transformer = adjustments.generate_transformer(); + } + + // Returns a copy of the color adjustments array. Use set_color_adjustments to persist. + public PixelTransformationBundle get_color_adjustments() { + lock (row) { + if (adjustments == null) + locked_create_adjustments_from_data(); + + return adjustments.copy(); + } + } + + public PixelTransformer get_pixel_transformer() { + lock (row) { + if (transformer == null) + locked_create_adjustments_from_data(); + + return transformer.copy(); + } + } + + public bool has_color_adjustments() { + return has_transformation("adjustments"); + } + + public PixelTransformation? get_color_adjustment(PixelTransformationType type) { + return get_color_adjustments().get_transformation(type); + } + + public void set_color_adjustments(PixelTransformationBundle new_adjustments) { + /* if every transformation in 'new_adjustments' is the identity, then just remove all + adjustments from the database */ + if (new_adjustments.is_identity()) { + bool result; + lock (row) { + result = remove_transformation("adjustments"); + adjustments = null; + transformer = null; + } + + if (result) + notify_altered(new Alteration("image", "color-adjustments")); + + return; + } + + // convert bundle to KeyValueMap, which can be saved in the database + KeyValueMap map = new_adjustments.save("adjustments"); + + bool committed; + lock (row) { + if (transformer == null || adjustments == null) { + // create new + adjustments = new_adjustments.copy(); + transformer = new_adjustments.generate_transformer(); + } else { + // replace existing + foreach (PixelTransformation transformation in new_adjustments.get_transformations()) { + transformer.replace_transformation( + adjustments.get_transformation(transformation.get_transformation_type()), + transformation); + } + + adjustments = new_adjustments.copy(); + } + + committed = set_transformation(map); + } + + if (committed) + notify_altered(new Alteration("image", "color-adjustments")); + } + + // This is thread-safe. Returns the source file's metadata. + public override PhotoMetadata? get_metadata() { + try { + return get_source_reader().read_metadata(); + } catch (Error err) { + warning("Unable to load metadata: %s", err.message); + + return null; + } + } + + public PhotoMetadata get_master_metadata() throws Error { + return get_master_reader().read_metadata(); + } + + public PhotoMetadata? get_editable_metadata() throws Error { + PhotoFileReader? reader = get_editable_reader(); + + return (reader != null) ? reader.read_metadata() : null; + } + + // This is thread-safe. This must be followed by a call to finish_update_master_metadata() in + // the main thread. Returns false if unable to write metadata (because operation is + // unsupported) or the file is unavailable. + public bool persist_master_metadata(PhotoMetadata metadata, out ReimportMasterState state) + throws Error { + state = null; + + PhotoFileReader master_reader = get_master_reader(); + + if (!master_reader.get_file_format().can_write_metadata()) + return false; + + master_reader.create_metadata_writer().write_metadata(metadata); + + if (!prepare_for_reimport_master(out state)) + return false; + + ((ReimportMasterStateImpl) state).metadata_only = true; + + return true; + } + + public void finish_update_master_metadata(ReimportMasterState state) throws DatabaseError { + finish_reimport_master(state); + } + + public bool persist_editable_metadata(PhotoMetadata metadata, out ReimportEditableState state) + throws Error { + state = null; + + PhotoFileReader? editable_reader = get_editable_reader(); + if (editable_reader == null) + return false; + + if (!editable_reader.get_file_format().can_write_metadata()) + return false; + + editable_reader.create_metadata_writer().write_metadata(metadata); + + if (!prepare_for_reimport_editable(out state)) + return false; + + ((ReimportEditableStateImpl) state).metadata_only = true; + + return true; + } + + public void finish_update_editable_metadata(ReimportEditableState state) throws DatabaseError { + finish_reimport_editable(state); + } + + // Transformation storage and exporting + + public Dimensions get_raw_dimensions() { + lock (row) { + return backing_photo_row.dim; + } + } + + public bool has_transformations() { + lock (row) { + return (row.orientation != backing_photo_row.original_orientation) + ? true + : (row.transformations != null); + } + } + + public bool only_metadata_changed() { + MetadataDateTime? date_time = null; + + PhotoMetadata? metadata = get_metadata(); + if (metadata != null) + date_time = metadata.get_exposure_date_time(); + + lock (row) { + return row.transformations == null + && (row.orientation != backing_photo_row.original_orientation + || (date_time != null && row.exposure_time != date_time.get_timestamp())); + } + } + + public bool has_alterations() { + MetadataDateTime? date_time = null; + string? title = null; + string? comment = null; + + PhotoMetadata? metadata = get_metadata(); + if (metadata != null) { + date_time = metadata.get_exposure_date_time(); + title = metadata.get_title(); + comment = metadata.get_comment(); + } + + // Does this photo contain any date/time info? + if (date_time == null) { + // No, use file timestamp as date/time. + lock (row) { + // Did we manually set an exposure date? + if(backing_photo_row.timestamp != row.exposure_time) { + // Yes, we need to save this. + return true; + } + } + } + + lock (row) { + return row.transformations != null + || row.orientation != backing_photo_row.original_orientation + || (date_time != null && row.exposure_time != date_time.get_timestamp()) + || (get_comment() != comment) + || (get_title() != title); + } + + } + + public PhotoTransformationState save_transformation_state() { + lock (row) { + return new PhotoTransformationStateImpl(this, row.orientation, + row.transformations, + transformer != null ? transformer.copy() : null, + adjustments != null ? adjustments.copy() : null); + } + } + + public bool load_transformation_state(PhotoTransformationState state) { + PhotoTransformationStateImpl state_impl = state as PhotoTransformationStateImpl; + if (state_impl == null) + return false; + + Orientation saved_orientation = state_impl.get_orientation(); + Gee.HashMap<string, KeyValueMap>? saved_transformations = state_impl.get_transformations(); + PixelTransformer? saved_transformer = state_impl.get_transformer(); + PixelTransformationBundle? saved_adjustments = state_impl.get_color_adjustments(); + + bool committed; + lock (row) { + committed = PhotoTable.get_instance().set_transformation_state(row.photo_id, + saved_orientation, saved_transformations); + if (committed) { + row.orientation = saved_orientation; + row.transformations = saved_transformations; + transformer = saved_transformer; + adjustments = saved_adjustments; + } + } + + if (committed) + notify_altered(new Alteration("image", "transformation-state")); + + return committed; + } + + public void remove_all_transformations() { + internal_remove_all_transformations(true); + } + + private void internal_remove_all_transformations(bool notify) { + bool is_altered = false; + lock (row) { + is_altered = PhotoTable.get_instance().remove_all_transformations(row.photo_id); + row.transformations = null; + + transformer = null; + adjustments = null; + + if (row.orientation != backing_photo_row.original_orientation) { + PhotoTable.get_instance().set_orientation(row.photo_id, + backing_photo_row.original_orientation); + row.orientation = backing_photo_row.original_orientation; + is_altered = true; + } + } + + if (is_altered && notify) + notify_altered(new Alteration("image", "revert")); + } + + public Orientation get_original_orientation() { + lock (row) { + return backing_photo_row.original_orientation; + } + } + + public Orientation get_orientation() { + lock (row) { + return row.orientation; + } + } + + public bool set_orientation(Orientation orientation) { + bool committed = false; + lock (row) { + if (row.orientation != orientation) { + committed = PhotoTable.get_instance().set_orientation(row.photo_id, orientation); + if (committed) + row.orientation = orientation; + } + } + + if (committed) + notify_altered(new Alteration("image", "orientation")); + + return committed; + } + + public bool check_can_rotate() { + return can_rotate_now; + } + + public virtual void rotate(Rotation rotation) { + lock (row) { + set_orientation(get_orientation().perform(rotation)); + } + } + + private bool has_transformation(string name) { + lock (row) { + return (row.transformations != null) ? row.transformations.has_key(name) : false; + } + } + + // Note that obtaining the proper map is thread-safe here. The returned map is a copy of + // the original, so it is thread-safe as well. However: modifying the returned map + // does not modify the original; set_transformation() must be used. + private KeyValueMap? get_transformation(string name) { + KeyValueMap map = null; + lock (row) { + if (row.transformations != null) { + map = row.transformations.get(name); + if (map != null) + map = map.copy(); + } + } + + return map; + } + + private bool set_transformation(KeyValueMap trans) { + lock (row) { + if (row.transformations == null) + row.transformations = new Gee.HashMap<string, KeyValueMap>(); + + row.transformations.set(trans.get_group(), trans); + + return PhotoTable.get_instance().set_transformation(row.photo_id, trans); + } + } + + private bool remove_transformation(string name) { + bool altered_cache, altered_persistent; + lock (row) { + if (row.transformations != null) { + altered_cache = row.transformations.unset(name); + if (row.transformations.size == 0) + row.transformations = null; + } else { + altered_cache = false; + } + + altered_persistent = PhotoTable.get_instance().remove_transformation(row.photo_id, + name); + } + + return (altered_cache || altered_persistent); + } + + public bool has_crop() { + return has_transformation("crop"); + } + + // Returns the crop in the raw photo's coordinate system + public bool get_raw_crop(out Box crop) { + crop = Box(); + + KeyValueMap map = get_transformation("crop"); + if (map == null) + return false; + + int left = map.get_int("left", -1); + int top = map.get_int("top", -1); + int right = map.get_int("right", -1); + int bottom = map.get_int("bottom", -1); + + if (left == -1 || top == -1 || right == -1 || bottom == -1) + return false; + + crop = Box(left, top, right, bottom); + + return true; + } + + // Sets the crop using the raw photo's unrotated coordinate system + private void set_raw_crop(Box crop) { + KeyValueMap map = new KeyValueMap("crop"); + map.set_int("left", crop.left); + map.set_int("top", crop.top); + map.set_int("right", crop.right); + map.set_int("bottom", crop.bottom); + + if (set_transformation(map)) + notify_altered(new Alteration("image", "crop")); + } + + private bool get_raw_straighten(out double angle) { + KeyValueMap map = get_transformation("straighten"); + if (map == null) { + angle = 0.0; + + return false; + } + + angle = map.get_double("angle", 0.0); + + return true; + } + + private void set_raw_straighten(double theta) { + KeyValueMap map = new KeyValueMap("straighten"); + map.set_double("angle", theta); + + if (set_transformation(map)) { + notify_altered(new Alteration("image", "straighten")); + } + } + + // All instances are against the coordinate system of the unscaled, unrotated photo. + private EditingTools.RedeyeInstance[] get_raw_redeye_instances() { + KeyValueMap map = get_transformation("redeye"); + if (map == null) + return new EditingTools.RedeyeInstance[0]; + + int num_points = map.get_int("num_points", -1); + assert(num_points > 0); + + EditingTools.RedeyeInstance[] res = new EditingTools.RedeyeInstance[num_points]; + + Gdk.Point default_point = {0}; + default_point.x = -1; + default_point.y = -1; + + for (int i = 0; i < num_points; i++) { + string center_key = "center%d".printf(i); + string radius_key = "radius%d".printf(i); + + res[i].center = map.get_point(center_key, default_point); + assert(res[i].center.x != default_point.x); + assert(res[i].center.y != default_point.y); + + res[i].radius = map.get_int(radius_key, -1); + assert(res[i].radius != -1); + } + + return res; + } + + public bool has_redeye_transformations() { + return has_transformation("redeye"); + } + + // All instances are against the coordinate system of the unrotated photo. + public void add_redeye_instance(EditingTools.RedeyeInstance redeye) { + KeyValueMap map = get_transformation("redeye"); + if (map == null) { + map = new KeyValueMap("redeye"); + map.set_int("num_points", 0); + } + + int num_points = map.get_int("num_points", -1); + assert(num_points >= 0); + + num_points++; + + string radius_key = "radius%d".printf(num_points - 1); + string center_key = "center%d".printf(num_points - 1); + + map.set_int(radius_key, redeye.radius); + map.set_point(center_key, redeye.center); + + map.set_int("num_points", num_points); + + if (set_transformation(map)) + notify_altered(new Alteration("image", "redeye")); + } + + // Pixbuf generation + + // Returns dimensions for the pixbuf at various stages of the pipeline. + // + // scaled_image is the dimensions of the image after a scaled load-and-decode. + // scaled_to_viewport is the dimensions of the image sized according to the scaling parameter. + // scaled_image and scaled_to_viewport may be different if the photo is cropped. + // + // Returns true if scaling is to occur, false otherwise. If false, scaled_image will be set to + // the raw image dimensions and scaled_to_viewport will be the dimensions of the image scaled + // to the Scaling viewport. + private bool calculate_pixbuf_dimensions(Scaling scaling, Exception exceptions, + out Dimensions scaled_image, out Dimensions scaled_to_viewport) { + lock (row) { + // this function needs to access various elements of the Photo atomically + return locked_calculate_pixbuf_dimensions(scaling, exceptions, + out scaled_image, out scaled_to_viewport); + } + } + + // Must be called with row locked. + private bool locked_calculate_pixbuf_dimensions(Scaling scaling, Exception exceptions, + out Dimensions scaled_image, out Dimensions scaled_to_viewport) { + Dimensions raw = get_raw_dimensions(); + + if (scaling.is_unscaled()) { + scaled_image = raw; + scaled_to_viewport = raw; + + return false; + } + + Orientation orientation = get_orientation(); + + // If no crop, the scaled_image is simply raw scaled to fit into the viewport. Otherwise, + // the image is scaled enough so the cropped region fits the viewport. + + scaled_image = Dimensions(); + scaled_to_viewport = Dimensions(); + + if (exceptions.allows(Exception.CROP)) { + Box crop; + if (get_raw_crop(out crop)) { + // rotate the crop and raw space accordingly ... order is important here, rotate_box + // works with the unrotated dimensions in space + Dimensions rotated_raw = raw; + if (exceptions.allows(Exception.ORIENTATION)) { + crop = orientation.rotate_box(raw, crop); + rotated_raw = orientation.rotate_dimensions(raw); + } + + // scale the rotated crop to fit in the viewport + Box scaled_crop = crop.get_scaled(scaling.get_scaled_dimensions(crop.get_dimensions())); + + // the viewport size is the size of the scaled crop + scaled_to_viewport = scaled_crop.get_dimensions(); + + // only scale the image if the crop is larger than the viewport + if (crop.get_width() <= scaled_crop.get_width() + && crop.get_height() <= scaled_crop.get_height()) { + scaled_image = raw; + scaled_to_viewport = crop.get_dimensions(); + + return false; + } + // resize the total pixbuf so the crop slices directly from the scaled pixbuf, + // with no need for resizing thereafter. The decoded size is determined by the + // proportion of the actual size to the crop size + scaled_image = rotated_raw.get_scaled_similar(crop.get_dimensions(), + scaled_crop.get_dimensions()); + + // derotate, as the loader knows nothing about orientation + if (exceptions.allows(Exception.ORIENTATION)) + scaled_image = orientation.derotate_dimensions(scaled_image); + } + } + + // if scaled_image not set, merely scale the raw pixbuf + if (!scaled_image.has_area()) { + // rotate for the scaler + Dimensions rotated_raw = raw; + if (exceptions.allows(Exception.ORIENTATION)) + rotated_raw = orientation.rotate_dimensions(raw); + + scaled_image = scaling.get_scaled_dimensions(rotated_raw); + scaled_to_viewport = scaled_image; + + // derotate the scaled dimensions, as the loader knows nothing about orientation + if (exceptions.allows(Exception.ORIENTATION)) + scaled_image = orientation.derotate_dimensions(scaled_image); + } + + // do not scale up + if (scaled_image.width >= raw.width && scaled_image.height >= raw.height) { + scaled_image = raw; + + return false; + } + + assert(scaled_image.has_area()); + assert(scaled_to_viewport.has_area()); + + return true; + } + + // Returns a raw, untransformed, unrotated pixbuf directly from the source. Scaling provides + // asked for a scaled-down image, which has certain performance benefits if the resized + // JPEG is scaled down by a factor of a power of two (one-half, one-fourth, etc.). + private Gdk.Pixbuf load_raw_pixbuf(Scaling scaling, Exception exceptions, + BackingFetchMode fetch_mode = BackingFetchMode.BASELINE) throws Error { + + PhotoFileReader loader = get_backing_reader(fetch_mode); + + // no scaling, load and get out + if (scaling.is_unscaled()) { +#if MEASURE_PIPELINE + debug("LOAD_RAW_PIXBUF UNSCALED %s: requested", loader.get_filepath()); +#endif + + return loader.unscaled_read(); + } + + // Need the dimensions of the image to load + Dimensions scaled_image, scaled_to_viewport; + bool is_scaled = calculate_pixbuf_dimensions(scaling, exceptions, out scaled_image, + out scaled_to_viewport); + if (!is_scaled) { +#if MEASURE_PIPELINE + debug("LOAD_RAW_PIXBUF UNSCALED %s: scaling unavailable", loader.get_filepath()); +#endif + + return loader.unscaled_read(); + } + + Gdk.Pixbuf pixbuf = loader.scaled_read(get_raw_dimensions(), scaled_image); + +#if MEASURE_PIPELINE + debug("LOAD_RAW_PIXBUF %s %s: %s -> %s (actual: %s)", scaling.to_string(), loader.get_filepath(), + get_raw_dimensions().to_string(), scaled_image.to_string(), + Dimensions.for_pixbuf(pixbuf).to_string()); +#endif + + assert(scaled_image.approx_equals(Dimensions.for_pixbuf(pixbuf), SCALING_FUDGE)); + + return pixbuf; + } + + // Returns a raw, untransformed, scaled pixbuf from the master that has been optionally rotated + // according to its original EXIF settings. + public Gdk.Pixbuf get_master_pixbuf(Scaling scaling, bool rotate = true) throws Error { + return get_untransformed_pixbuf(scaling, rotate, BackingFetchMode.MASTER); + } + + // Returns a pixbuf that hasn't been modified (head of the pipeline.) + public Gdk.Pixbuf get_unmodified_pixbuf(Scaling scaling, bool rotate = true) throws Error { + return get_untransformed_pixbuf(scaling, rotate, BackingFetchMode.UNMODIFIED); + } + + // Returns an untransformed pixbuf with optional scaling, rotation, and fetch mode. + private Gdk.Pixbuf get_untransformed_pixbuf(Scaling scaling, bool rotate, BackingFetchMode fetch_mode) + throws Error { +#if MEASURE_PIPELINE + Timer timer = new Timer(); + Timer total_timer = new Timer(); + double orientation_time = 0.0; + + total_timer.start(); +#endif + + // get required fields all at once, to avoid holding the row lock + Dimensions scaled_image, scaled_to_viewport; + Orientation original_orientation; + + lock (row) { + calculate_pixbuf_dimensions(scaling, Exception.NONE, out scaled_image, + out scaled_to_viewport); + original_orientation = get_original_orientation(); + } + + // load-and-decode and scale + Gdk.Pixbuf pixbuf = load_raw_pixbuf(scaling, Exception.NONE, fetch_mode); + + // orientation +#if MEASURE_PIPELINE + timer.start(); +#endif + if (rotate) + pixbuf = original_orientation.rotate_pixbuf(pixbuf); + +#if MEASURE_PIPELINE + orientation_time = timer.elapsed(); + + debug("MASTER PIPELINE %s (%s): orientation=%lf total=%lf", to_string(), scaling.to_string(), + orientation_time, total_timer.elapsed()); +#endif + + return pixbuf; + } + + public override Gdk.Pixbuf get_pixbuf(Scaling scaling) throws Error { + return get_pixbuf_with_options(scaling); + } + + /** + * @brief Populates the cached version of the unmodified image. + */ + public void populate_prefetched() throws Error { + lock (unmodified_precached) { + // If we don't have it already, precache the original... + if (unmodified_precached == null) { + unmodified_precached = load_raw_pixbuf(Scaling.for_original(), Exception.ALL, BackingFetchMode.SOURCE); + secs_since_access = new GLib.Timer(); + GLib.Timeout.add_seconds(5, (GLib.SourceFunc)discard_prefetched); + debug("spawning new precache timeout for %s", this.to_string()); + } + } + } + + /** + * @brief Get a copy of what's in the cache. + * + * @return A Pixbuf with the image data from unmodified_precached. + */ + public Gdk.Pixbuf? get_prefetched_copy() { + lock (unmodified_precached) { + if (unmodified_precached == null) { + try { + populate_prefetched(); + } catch (Error e) { + warning("raw pixbuf for %s could not be loaded", this.to_string()); + return null; + } + } + + return unmodified_precached.copy(); + } + } + + /** + * @brief Discards the cached version of the unmodified image. + * + * @param immed Whether the cached version should be discarded now, or not. + */ + public bool discard_prefetched(bool immed = false) { + lock (unmodified_precached) { + if (secs_since_access == null) + return false; + + double tmp; + if ((secs_since_access.elapsed(out tmp) > PRECACHE_TIME_TO_LIVE) || (immed)) { + debug("pipeline not run in over %d seconds or got immediate command, discarding " + + "cached original for %s", + PRECACHE_TIME_TO_LIVE, to_string()); + unmodified_precached = null; + secs_since_access = null; + return false; + } + + return true; + } + } + + /** + * @brief Returns a fully transformed and scaled pixbuf. Transformations may be excluded via + * the mask. If the image is smaller than the scaling, it will be returned in its actual size. + * The caller is responsible for scaling thereafter. + * + * @param scaling A scaling object that describes the size the output pixbuf should be. + * @param exceptions The parts of the pipeline that should be skipped; defaults to NONE if + * left unset. + * @param fetch_mode The fetch mode; if left unset, defaults to BASELINE so that + * we get the image exactly as it is in the file. + */ + public Gdk.Pixbuf get_pixbuf_with_options(Scaling scaling, Exception exceptions = + Exception.NONE, BackingFetchMode fetch_mode = BackingFetchMode.BASELINE) throws Error { + +#if MEASURE_PIPELINE + Timer timer = new Timer(); + Timer total_timer = new Timer(); + double redeye_time = 0.0, crop_time = 0.0, adjustment_time = 0.0, orientation_time = 0.0, + straighten_time = 0.0; + + total_timer.start(); +#endif + + // If this is a RAW photo, ensure the development is ready. + if (Photo.develop_raw_photos_to_files && + get_master_file_format() == PhotoFileFormat.RAW && + (fetch_mode == BackingFetchMode.BASELINE || fetch_mode == BackingFetchMode.UNMODIFIED + || fetch_mode == BackingFetchMode.SOURCE) && + !is_raw_developer_complete(get_raw_developer())) + set_raw_developer(get_raw_developer()); + + // to minimize holding the row lock, fetch everything needed for the pipeline up-front + bool is_scaled, is_cropped, is_straightened; + Dimensions scaled_to_viewport; + Dimensions original = Dimensions(); + Dimensions scaled = Dimensions(); + EditingTools.RedeyeInstance[] redeye_instances = null; + Box crop; + double straightening_angle; + PixelTransformer transformer = null; + Orientation orientation; + + lock (row) { + original = get_dimensions(Exception.ALL); + scaled = scaling.get_scaled_dimensions(get_dimensions(exceptions)); + scaled_to_viewport = scaled; + + is_scaled = !(get_dimensions().equals(scaled)); + + redeye_instances = get_raw_redeye_instances(); + + is_cropped = get_raw_crop(out crop); + + is_straightened = get_raw_straighten(out straightening_angle); + + if (has_color_adjustments()) + transformer = get_pixel_transformer(); + + orientation = get_orientation(); + } + + // + // Image load-and-decode + // + populate_prefetched(); + + Gdk.Pixbuf pixbuf = get_prefetched_copy(); + + // remember to delete the cached copy if it isn't being used. + secs_since_access.start(); + debug("pipeline being run against %s, timer restarted.", this.to_string()); + + assert(pixbuf != null); + + // + // Image transformation pipeline + // + + // redeye reduction + if (exceptions.allows(Exception.REDEYE)) { + +#if MEASURE_PIPELINE + timer.start(); +#endif + foreach (EditingTools.RedeyeInstance instance in redeye_instances) { + pixbuf = do_redeye(pixbuf, instance); + } +#if MEASURE_PIPELINE + redeye_time = timer.elapsed(); +#endif + } + + // angle photograph so in-image horizon is aligned with horizontal + if (exceptions.allows(Exception.STRAIGHTEN)) { +#if MEASURE_PIPELINE + timer.start(); +#endif + if (is_straightened) { + pixbuf = rotate_arb(pixbuf, straightening_angle); + } + +#if MEASURE_PIPELINE + straighten_time = timer.elapsed(); +#endif + } + + // crop + if (exceptions.allows(Exception.CROP)) { +#if MEASURE_PIPELINE + timer.start(); +#endif + if (is_cropped) { + + // ensure the crop region stays inside the scaled image boundaries and is + // at least 1 px by 1 px; this is needed as a work-around for inaccuracies + // which can occur when zooming. + crop.left = crop.left.clamp(0, pixbuf.width - 2); + crop.top = crop.top.clamp(0, pixbuf.height - 2); + + crop.right = crop.right.clamp(crop.left + 1, pixbuf.width - 1); + crop.bottom = crop.bottom.clamp(crop.top + 1, pixbuf.height - 1); + + pixbuf = new Gdk.Pixbuf.subpixbuf(pixbuf, crop.left, crop.top, crop.get_width(), + crop.get_height()); + } + +#if MEASURE_PIPELINE + crop_time = timer.elapsed(); +#endif + } + + // orientation (all modifications are stored in unrotated coordinate system) + if (exceptions.allows(Exception.ORIENTATION)) { +#if MEASURE_PIPELINE + timer.start(); +#endif + pixbuf = orientation.rotate_pixbuf(pixbuf); +#if MEASURE_PIPELINE + orientation_time = timer.elapsed(); +#endif + } + +#if MEASURE_PIPELINE + debug("PIPELINE %s (%s): redeye=%lf crop=%lf adjustment=%lf orientation=%lf total=%lf", + to_string(), scaling.to_string(), redeye_time, crop_time, adjustment_time, + orientation_time, total_timer.elapsed()); +#endif + + // scale the scratch image, as needed. + if (is_scaled) { + pixbuf = pixbuf.scale_simple(scaled_to_viewport.width, scaled_to_viewport.height, Gdk.InterpType.BILINEAR); + } + + // color adjustment; we do this dead last, since, if an image has been scaled down, + // it may allow us to reduce the amount of pixel arithmetic, increasing responsiveness. + if (exceptions.allows(Exception.ADJUST)) { +#if MEASURE_PIPELINE + timer.start(); +#endif + if (transformer != null) + transformer.transform_pixbuf(pixbuf); +#if MEASURE_PIPELINE + adjustment_time = timer.elapsed(); +#endif + } + + // This is to verify the generated pixbuf matches the scale requirements; crop, straighten + // and orientation are all transformations that change the dimensions or aspect ratio of + // the pixbuf, and must be accounted for the test to be valid. + if ((is_scaled) && (!is_straightened)) + assert(scaled_to_viewport.approx_equals(Dimensions.for_pixbuf(pixbuf), SCALING_FUDGE)); + + return pixbuf; + } + + + // + // File export + // + + protected abstract bool has_user_generated_metadata(); + + // Sets the metadata values for any user generated metadata, only called if + // has_user_generated_metadata returns true + protected abstract void set_user_metadata_for_export(PhotoMetadata metadata); + + // Returns the basename of the file if it were to be exported in format 'file_format'; if + // 'file_format' is null, then return the basename of the file if it were to be exported in the + // native backing format of the photo (i.e. no conversion is performed). If 'file_format' is + // null and the native backing format is not writeable (i.e. RAW), then use the system + // default file format, as defined in PhotoFileFormat + public string get_export_basename(PhotoFileFormat? file_format = null) { + if (file_format != null) { + return file_format.get_properties().convert_file_extension(get_master_file()).get_basename(); + } else { + if (get_file_format().can_write()) { + return get_file_format().get_properties().convert_file_extension( + get_master_file()).get_basename(); + } else { + return PhotoFileFormat.get_system_default_format().get_properties().convert_file_extension( + get_master_file()).get_basename(); + } + } + } + + private bool export_fullsized_backing(File file, bool export_metadata = true) throws Error { + // See if the native reader supports writing ... if no matches, need to fall back + // on a "regular" export, which requires decoding then encoding + PhotoFileReader export_reader = null; + bool is_master = true; + lock (readers) { + if (readers.editable != null && readers.editable.get_file_format().can_write_metadata()) { + export_reader = readers.editable; + is_master = false; + } else if (readers.developer != null && readers.developer.get_file_format().can_write_metadata()) { + export_reader = readers.developer; + is_master = false; + } else if (readers.master.get_file_format().can_write_metadata()) { + export_reader = readers.master; + } + } + + if (export_reader == null) + return false; + + PhotoFileFormatProperties format_properties = export_reader.get_file_format().get_properties(); + + // Build a destination file with the caller's name but the appropriate extension + File dest_file = format_properties.convert_file_extension(file); + + // Create a PhotoFileMetadataWriter that matches the PhotoFileReader's file format + PhotoFileMetadataWriter writer = export_reader.get_file_format().create_metadata_writer( + dest_file.get_path()); + + debug("Exporting full-sized copy of %s to %s", to_string(), writer.get_filepath()); + + export_reader.get_file().copy(dest_file, + FileCopyFlags.OVERWRITE | FileCopyFlags.TARGET_DEFAULT_PERMS, null, null); + + // If asking for an full-sized file and there are no alterations (transformations or EXIF) + // *and* this is a copy of the original backing *and* there's no user metadata or title *and* metadata should be exported, then done + if (!has_alterations() && is_master && !has_user_generated_metadata() && + (get_title() == null) && (get_comment() == null) && export_metadata) + return true; + + // copy over relevant metadata if possible, otherwise generate new metadata + PhotoMetadata? metadata = export_reader.read_metadata(); + if (metadata == null) + metadata = export_reader.get_file_format().create_metadata(); + + debug("Updating metadata of %s", writer.get_filepath()); + + if (get_exposure_time() != 0) + metadata.set_exposure_date_time(new MetadataDateTime(get_exposure_time())); + else + metadata.set_exposure_date_time(null); + + if(export_metadata) { + //set metadata + metadata.set_title(get_title()); + metadata.set_comment(get_comment()); + metadata.set_pixel_dimensions(get_dimensions()); // created by sniffing pixbuf not metadata + metadata.set_orientation(get_orientation()); + metadata.set_software(Resources.APP_TITLE, Resources.APP_VERSION); + + if (get_orientation() != get_original_orientation()) + metadata.remove_exif_thumbnail(); + + set_user_metadata_for_export(metadata); + } + else + //delete metadata + metadata.clear(); + + writer.write_metadata(metadata); + + return true; + } + + // Returns true if there's any reason that an export is required to fully represent the photo + // on disk. False essentially means that the source file (NOT NECESSARILY the master file) + // *is* the full representation of the photo and its metadata. + public bool is_export_required(Scaling scaling, PhotoFileFormat export_format) { + return (!scaling.is_unscaled() || has_alterations() || has_user_generated_metadata() + || export_format != get_file_format()); + } + + // TODO: Lossless transformations, especially for mere rotations of JFIF files. + // + // This method is thread-safe. + public void export(File dest_file, Scaling scaling, Jpeg.Quality quality, + PhotoFileFormat export_format, bool direct_copy_unmodified = false, bool export_metadata = true) throws Error { + if (direct_copy_unmodified) { + get_master_file().copy(dest_file, FileCopyFlags.OVERWRITE | + FileCopyFlags.TARGET_DEFAULT_PERMS, null, null); + return; + } + + // Attempt to avoid decode/encoding cycle when exporting original-sized photos for lossy + // formats, as that degrades image quality. If alterations exist, but only EXIF has + // changed and the user hasn't requested conversion between image formats, then just copy + // the original file and update relevant EXIF. + if (scaling.is_unscaled() && (!has_alterations() || only_metadata_changed()) && + (export_format == get_file_format()) && (get_file_format() == PhotoFileFormat.JFIF)) { + if (export_fullsized_backing(dest_file, export_metadata)) + return; + } + + // Copy over existing metadata from source if available, or create new metadata and + // save it for later export below. This has to happen before the format writer writes + // out the modified image, as that write will strip the existing exif data. + PhotoMetadata? metadata = get_metadata(); + if (metadata == null) + metadata = export_format.create_metadata(); + + if (!export_format.can_write()) + export_format = PhotoFileFormat.get_system_default_format(); + + PhotoFileWriter writer = export_format.create_writer(dest_file.get_path()); + + debug("Saving transformed version of %s to %s in file format %s", to_string(), + writer.get_filepath(), export_format.to_string()); + + Gdk.Pixbuf pixbuf; + + // Since JPEGs can store their own orientation, we save the pixels + // directly and let the orientation field do the rotation... + if ((get_file_format() == PhotoFileFormat.JFIF) || + (get_file_format() == PhotoFileFormat.RAW)) { + pixbuf = get_pixbuf_with_options(scaling, Exception.ORIENTATION, + BackingFetchMode.SOURCE); + } else { + // Non-JPEG image - we'll need to save the rotated pixels. + pixbuf = get_pixbuf_with_options(scaling, Exception.NONE, + BackingFetchMode.SOURCE); + } + + writer.write(pixbuf, quality); + + debug("Setting EXIF for %s", writer.get_filepath()); + + // Do we need to save metadata to this file? + if (export_metadata) { + //Yes, set metadata obtained above. + metadata.set_title(get_title()); + metadata.set_comment(get_comment()); + metadata.set_software(Resources.APP_TITLE, Resources.APP_VERSION); + + if (get_exposure_time() != 0) + metadata.set_exposure_date_time(new MetadataDateTime(get_exposure_time())); + else + metadata.set_exposure_date_time(null); + + metadata.remove_tag("Exif.Iop.RelatedImageWidth"); + metadata.remove_tag("Exif.Iop.RelatedImageHeight"); + metadata.remove_exif_thumbnail(); + + if (has_user_generated_metadata()) + set_user_metadata_for_export(metadata); + } + else { + //No, delete metadata. + metadata.clear(); + } + + // Even if we were told to trash camera-identifying data, we need + // to make sure the orientation propagates. Also, because JPEGs + // can store their own orientation, we'll save the original dimensions + // directly and let the orientation field do the rotation there. + if ((get_file_format() == PhotoFileFormat.JFIF) || + (get_file_format() == PhotoFileFormat.RAW)) { + metadata.set_pixel_dimensions(get_dimensions(Exception.ORIENTATION)); + metadata.set_orientation(get_orientation()); + } else { + // Non-JPEG image - we'll need to save the rotated dimensions. + metadata.set_pixel_dimensions(Dimensions.for_pixbuf(pixbuf)); + metadata.set_orientation(Orientation.TOP_LEFT); + } + + export_format.create_metadata_writer(dest_file.get_path()).write_metadata(metadata); + } + + private File generate_new_editable_file(out PhotoFileFormat file_format) throws Error { + File backing; + lock (row) { + file_format = get_file_format(); + backing = get_file(); + } + + if (!file_format.can_write()) + file_format = PhotoFileFormat.get_system_default_format(); + + string name, ext; + disassemble_filename(backing.get_basename(), out name, out ext); + + if (ext == null || !file_format.get_properties().is_recognized_extension(ext)) + ext = file_format.get_properties().get_default_extension(); + + string editable_basename = "%s_%s.%s".printf(name, _("modified"), ext); + + bool collision; + return generate_unique_file(backing.get_parent(), editable_basename, out collision); + } + + private static bool launch_editor(File file, PhotoFileFormat file_format) throws Error { + string commandline = file_format == PhotoFileFormat.RAW ? Config.Facade.get_instance().get_external_raw_app() : + Config.Facade.get_instance().get_external_photo_app(); + + if (is_string_empty(commandline)) + return false; + + AppInfo? app; + try { + app = AppInfo.create_from_commandline(commandline, "", + AppInfoCreateFlags.NONE); + } catch (Error er) { + app = null; + } + + List<File> files = new List<File>(); + files.insert(file, -1); + + if (app != null) + return app.launch(files, null); + + string[] argv = new string[2]; + argv[0] = commandline; + argv[1] = file.get_path(); + + Pid child_pid; + + return Process.spawn_async( + "/", + argv, + null, // environment + SpawnFlags.SEARCH_PATH, + null, // child setup + out child_pid); + } + + // Opens with Ufraw, etc. + public void open_with_raw_external_editor() throws Error { + launch_editor(get_master_file(), get_master_file_format()); + } + + // Opens with GIMP, etc. + public void open_with_external_editor() throws Error { + File current_editable_file = null; + File create_editable_file = null; + PhotoFileFormat editable_file_format; + lock (readers) { + if (readers.editable != null) + current_editable_file = readers.editable.get_file(); + + if (current_editable_file == null) + create_editable_file = generate_new_editable_file(out editable_file_format); + else + editable_file_format = readers.editable.get_file_format(); + } + + // if this isn't the first time but the file does not exist OR there are transformations + // that need to be represented there, create a new one + if (create_editable_file == null && current_editable_file != null && + (!current_editable_file.query_exists(null) || has_transformations())) + create_editable_file = current_editable_file; + + // if creating a new edited file and can write to it, stop watching the old one + if (create_editable_file != null && editable_file_format.can_write()) { + halt_monitoring_editable(); + + try { + export(create_editable_file, Scaling.for_original(), Jpeg.Quality.MAXIMUM, + editable_file_format); + } catch (Error err) { + // if an error is thrown creating the file, clean it up + try { + create_editable_file.delete(null); + } catch (Error delete_err) { + // ignored + warning("Unable to delete editable file %s after export error: %s", + create_editable_file.get_path(), delete_err.message); + } + + throw err; + } + + // attach the editable file to the photo + attach_editable(editable_file_format, create_editable_file); + + current_editable_file = create_editable_file; + } + + assert(current_editable_file != null); + + // if not already monitoring, monitor now + if (editable_monitor == null) + start_monitoring_editable(current_editable_file); + + launch_editor(current_editable_file, get_file_format()); + } + + public void revert_to_master(bool notify = true) { + detach_editable(true, true, notify); + } + + private void start_monitoring_editable(File file) throws Error { + halt_monitoring_editable(); + + // tell the LibraryMonitor not to monitor this file + LibraryMonitor.blacklist_file(file, "Photo.start_monitoring_editable"); + + editable_monitor = file.monitor(FileMonitorFlags.NONE, null); + editable_monitor.changed.connect(on_editable_file_changed); + } + + private void halt_monitoring_editable() { + if (editable_monitor == null) + return; + + // tell the LibraryMonitor a-ok to watch this file again + File? file = get_editable_file(); + if (file != null) + LibraryMonitor.unblacklist_file(file); + + editable_monitor.changed.disconnect(on_editable_file_changed); + editable_monitor.cancel(); + editable_monitor = null; + } + + private void attach_editable(PhotoFileFormat file_format, File file) throws Error { + // remove the transformations ... this must be done before attaching the editable, as these + // transformations are in the master's coordinate system, not the editable's ... don't + // notify photo is altered *yet* because update_editable will notify, and want to avoid + // stacking them up + internal_remove_all_transformations(false); + update_editable(false, file_format.create_reader(file.get_path())); + } + + private void update_editable_attributes() throws Error { + update_editable(true, null); + } + + public void reimport_editable() throws Error { + update_editable(false, null); + } + + // In general, because of the fragility of the order of operations and what's required where, + // use one of the above wrapper functions to call this rather than call this directly. + private void update_editable(bool only_attributes, PhotoFileReader? new_reader = null) throws Error { + // only_attributes only available for updating existing editable + assert((only_attributes && new_reader == null) || (!only_attributes)); + + PhotoFileReader? old_reader = get_editable_reader(); + + PhotoFileReader reader = new_reader ?? old_reader; + if (reader == null) { + detach_editable(false, true); + + return; + } + + bool timestamp_changed = false; + bool filesize_changed = false; + bool is_new_editable = false; + + BackingPhotoID editable_id = get_editable_id(); + File file = reader.get_file(); + + DetectedPhotoInformation detected; + BackingPhotoRow? backing = query_backing_photo_row(file, PhotoFileSniffer.Options.NO_MD5, + out detected); + + // Have we _not_ got an editable attached yet? + if (editable_id.is_invalid()) { + // Yes, try to create and attach one. + if (backing != null) { + BackingPhotoTable.get_instance().add(backing); + lock (row) { + timestamp_changed = true; + filesize_changed = true; + + PhotoTable.get_instance().attach_editable(row, backing.id); + editable = backing; + backing_photo_row = editable; + set_orientation(backing_photo_row.original_orientation); + } + } + is_new_editable = true; + } + + if (only_attributes) { + // This should only be possible if the editable exists already. + assert(editable_id.is_valid()); + + FileInfo info; + try { + info = file.query_filesystem_info(DirectoryMonitor.SUPPLIED_ATTRIBUTES, null); + } catch (Error err) { + warning("Unable to read editable filesystem info for %s: %s", to_string(), err.message); + detach_editable(false, true); + + return; + } + + TimeVal timestamp = info.get_modification_time(); + + BackingPhotoTable.get_instance().update_attributes(editable_id, timestamp.tv_sec, + info.get_size()); + lock (row) { + timestamp_changed = editable.timestamp != timestamp.tv_sec; + filesize_changed = editable.filesize != info.get_size(); + + editable.timestamp = timestamp.tv_sec; + editable.filesize = info.get_size(); + } + } else { + // Not just a file-attribute-only change. + if (editable_id.is_valid() && !is_new_editable) { + // Only check these if we didn't just have to create + // this editable, since, with a newly-created editable, + // the file size and modification time are by definition + // freshly-changed. + backing.id = editable_id; + BackingPhotoTable.get_instance().update(backing); + lock (row) { + timestamp_changed = editable.timestamp != backing.timestamp; + filesize_changed = editable.filesize != backing.filesize; + + editable = backing; + backing_photo_row = editable; + set_orientation(backing_photo_row.original_orientation); + } + } + } + + // if a new reader was specified, install that and begin using it + if (new_reader != null) { + lock (readers) { + readers.editable = new_reader; + } + } + + if (!only_attributes && reader != old_reader) { + notify_baseline_replaced(); + notify_editable_replaced(old_reader != null ? old_reader.get_file() : null, + new_reader != null ? new_reader.get_file() : null); + } + + string[] alteration_list = new string[0]; + if (timestamp_changed) { + alteration_list += "metadata:editable-timestamp"; + alteration_list += "metadata:baseline-timestamp"; + + if (is_editable_source()) + alteration_list += "metadata:source-timestamp"; + } + + if (filesize_changed || new_reader != null) { + alteration_list += "image:editable"; + alteration_list += "image:baseline"; + + if (is_editable_source()) + alteration_list += "image:source"; + } + + if (alteration_list.length > 0) + notify_altered(new Alteration.from_array(alteration_list)); + } + + private void detach_editable(bool delete_editable, bool remove_transformations, bool notify = true) { + halt_monitoring_editable(); + + bool has_editable = false; + File? editable_file = null; + lock (readers) { + if (readers.editable != null) { + editable_file = readers.editable.get_file(); + readers.editable = null; + has_editable = true; + } + } + + if (has_editable) { + BackingPhotoID editable_id = BackingPhotoID(); + try { + lock (row) { + editable_id = row.editable_id; + if (editable_id.is_valid()) + PhotoTable.get_instance().detach_editable(row); + backing_photo_row = row.master; + } + } catch (DatabaseError err) { + warning("Unable to remove editable from PhotoTable: %s", err.message); + } + + try { + if (editable_id.is_valid()) + BackingPhotoTable.get_instance().remove(editable_id); + } catch (DatabaseError err) { + warning("Unable to remove editable from BackingPhotoTable: %s", err.message); + } + } + + if (remove_transformations) + internal_remove_all_transformations(false); + + if (has_editable) { + notify_baseline_replaced(); + notify_editable_replaced(editable_file, null); + } + + if (delete_editable && editable_file != null) { + try { + editable_file.trash(null); + } catch (Error err) { + warning("Unable to trash editable %s for %s: %s", editable_file.get_path(), to_string(), + err.message); + } + } + + if ((has_editable || remove_transformations) && notify) + notify_altered(new Alteration("image", "revert")); + } + + private void on_editable_file_changed(File file, File? other_file, FileMonitorEvent event) { + // This has some expense, but this assertion is important for a lot of sanity reasons. + lock (readers) { + assert(readers.editable != null && file.equal(readers.editable.get_file())); + } + + debug("EDITABLE %s: %s", event.to_string(), file.get_path()); + + switch (event) { + case FileMonitorEvent.CHANGED: + case FileMonitorEvent.CREATED: + if (reimport_editable_scheduler == null) { + reimport_editable_scheduler = new OneShotScheduler("Photo.reimport_editable", + on_reimport_editable); + } + + reimport_editable_scheduler.after_timeout(1000, true); + break; + + case FileMonitorEvent.ATTRIBUTE_CHANGED: + if (update_editable_attributes_scheduler == null) { + update_editable_attributes_scheduler = new OneShotScheduler( + "Photo.update_editable_attributes", on_update_editable_attributes); + } + + update_editable_attributes_scheduler.after_timeout(1000, true); + break; + + case FileMonitorEvent.DELETED: + if (remove_editable_scheduler == null) { + remove_editable_scheduler = new OneShotScheduler("Photo.remove_editable", + on_remove_editable); + } + + remove_editable_scheduler.after_timeout(3000, true); + break; + + case FileMonitorEvent.CHANGES_DONE_HINT: + default: + // ignored + break; + } + + // at this point, any image date we have cached is stale, + // so delete it and force the pipeline to re-fetch it + discard_prefetched(true); + } + + private void on_reimport_editable() { + // delete old image data and force the pipeline to load new from file. + discard_prefetched(true); + + debug("Reimporting editable for %s", to_string()); + try { + reimport_editable(); + } catch (Error err) { + warning("Unable to reimport photo %s changed by external editor: %s", + to_string(), err.message); + } + } + + private void on_update_editable_attributes() { + debug("Updating editable attributes for %s", to_string()); + try { + update_editable_attributes(); + } catch (Error err) { + warning("Unable to update editable attributes: %s", err.message); + } + } + + private void on_remove_editable() { + PhotoFileReader? reader = get_editable_reader(); + if (reader == null) + return; + + File file = reader.get_file(); + if (file.query_exists(null)) { + debug("Not removing editable for %s: file exists", to_string()); + + return; + } + + debug("Removing editable for %s: file no longer exists", to_string()); + detach_editable(false, true); + } + + // + // Aggregate/helper/translation functions + // + + // Returns uncropped (but rotated) dimensions + public Dimensions get_original_dimensions() { + Dimensions dim = get_raw_dimensions(); + Orientation orientation = get_orientation(); + + return orientation.rotate_dimensions(dim); + } + + // Returns uncropped dimensions rotated only to reflect the original orientation + public Dimensions get_master_dimensions() { + return get_original_orientation().rotate_dimensions(get_raw_dimensions()); + } + + // Returns the crop against the coordinate system of the rotated photo + public bool get_crop(out Box crop, Exception exceptions = Exception.NONE) { + Box raw; + if (!get_raw_crop(out raw)) { + crop = Box(); + + return false; + } + + Dimensions dim = get_dimensions(Exception.CROP | Exception.ORIENTATION); + Orientation orientation = get_orientation(); + + if(exceptions.allows(Exception.ORIENTATION)) + crop = orientation.rotate_box(dim, raw); + else + crop = raw; + + return true; + } + + // Sets the crop against the coordinate system of the rotated photo + public void set_crop(Box crop) { + Dimensions dim = get_dimensions(Exception.CROP | Exception.ORIENTATION); + Orientation orientation = get_orientation(); + + Box derotated = orientation.derotate_box(dim, crop); + + derotated.left = derotated.left.clamp(0, dim.width - 2); + derotated.right = derotated.right.clamp(derotated.left, dim.width - 1); + + derotated.top = derotated.top.clamp(0, dim.height - 2); + derotated.bottom = derotated.bottom.clamp(derotated.top, dim.height - 1); + + set_raw_crop(derotated); + } + + public bool get_straighten(out double theta) { + if (!get_raw_straighten(out theta)) + return false; + + return true; + } + + public void set_straighten(double theta) { + set_raw_straighten(theta); + } + + private Gdk.Pixbuf do_redeye(Gdk.Pixbuf pixbuf, EditingTools.RedeyeInstance inst) { + /* we remove redeye within a circular region called the "effect + extent." the effect extent is inscribed within its "bounding + rectangle." */ + + /* for each scanline in the top half-circle of the effect extent, + compute the number of pixels by which the effect extent is inset + from the edges of its bounding rectangle. note that we only have + to do this for the first quadrant because the second quadrant's + insets can be derived by symmetry */ + double r = (double) inst.radius; + int[] x_insets_first_quadrant = new int[inst.radius + 1]; + + int i = 0; + for (double y = r; y >= 0.0; y -= 1.0) { + double theta = Math.asin(y / r); + int x = (int)((r * Math.cos(theta)) + 0.5); + x_insets_first_quadrant[i] = inst.radius - x; + + i++; + } + + int x_bounds_min = inst.center.x - inst.radius; + int x_bounds_max = inst.center.x + inst.radius; + int ymin = inst.center.y - inst.radius; + ymin = (ymin < 0) ? 0 : ymin; + int ymax = inst.center.y; + ymax = (ymax > (pixbuf.height - 1)) ? (pixbuf.height - 1) : ymax; + + /* iterate over all the pixels in the top half-circle of the effect + extent from top to bottom */ + int inset_index = 0; + for (int y_it = ymin; y_it <= ymax; y_it++) { + int xmin = x_bounds_min + x_insets_first_quadrant[inset_index]; + xmin = (xmin < 0) ? 0 : xmin; + int xmax = x_bounds_max - x_insets_first_quadrant[inset_index]; + xmax = (xmax > (pixbuf.width - 1)) ? (pixbuf.width - 1) : xmax; + + for (int x_it = xmin; x_it <= xmax; x_it++) { + red_reduce_pixel(pixbuf, x_it, y_it); + } + inset_index++; + } + + /* iterate over all the pixels in the top half-circle of the effect + extent from top to bottom */ + ymin = inst.center.y; + ymax = inst.center.y + inst.radius; + inset_index = x_insets_first_quadrant.length - 1; + for (int y_it = ymin; y_it <= ymax; y_it++) { + int xmin = x_bounds_min + x_insets_first_quadrant[inset_index]; + xmin = (xmin < 0) ? 0 : xmin; + int xmax = x_bounds_max - x_insets_first_quadrant[inset_index]; + xmax = (xmax > (pixbuf.width - 1)) ? (pixbuf.width - 1) : xmax; + + for (int x_it = xmin; x_it <= xmax; x_it++) { + red_reduce_pixel(pixbuf, x_it, y_it); + } + inset_index--; + } + + return pixbuf; + } + + private Gdk.Pixbuf red_reduce_pixel(Gdk.Pixbuf pixbuf, int x, int y) { + int px_start_byte_offset = (y * pixbuf.get_rowstride()) + + (x * pixbuf.get_n_channels()); + + /* Due to inaccuracies in the scaler, we can occasionally + * get passed a coordinate pair outside the image, causing + * us to walk off the array and into segfault territory. + * Check coords prior to drawing to prevent this... */ + if ((x >= 0) && (y >= 0) && (x < pixbuf.width) && (y < pixbuf.height)) { + unowned uchar[] pixel_data = pixbuf.get_pixels(); + + /* The pupil of the human eye has no pigment, so we expect all + color channels to be of about equal intensity. This means that at + any point within the effects region, the value of the red channel + should be about the same as the values of the green and blue + channels. So set the value of the red channel to be the mean of the + values of the red and blue channels. This preserves achromatic + intensity across all channels while eliminating any extraneous flare + affecting the red channel only (i.e. the red-eye effect). */ + uchar g = pixel_data[px_start_byte_offset + 1]; + uchar b = pixel_data[px_start_byte_offset + 2]; + + uchar r = (g + b) / 2; + + pixel_data[px_start_byte_offset] = r; + } + + return pixbuf; + } + + public Gdk.Point unscaled_to_raw_point(Gdk.Point unscaled_point) { + Orientation unscaled_orientation = get_orientation(); + + Dimensions unscaled_dims = + unscaled_orientation.rotate_dimensions(get_dimensions()); + + int unscaled_x_offset_raw = 0; + int unscaled_y_offset_raw = 0; + + Box crop_box; + if (get_raw_crop(out crop_box)) { + unscaled_x_offset_raw = crop_box.left; + unscaled_y_offset_raw = crop_box.top; + } + + Gdk.Point derotated_point = + unscaled_orientation.derotate_point(unscaled_dims, + unscaled_point); + + derotated_point.x += unscaled_x_offset_raw; + derotated_point.y += unscaled_y_offset_raw; + + return derotated_point; + } + + public Gdk.Rectangle unscaled_to_raw_rect(Gdk.Rectangle unscaled_rect) { + Gdk.Point upper_left = {0}; + Gdk.Point lower_right = {0}; + upper_left.x = unscaled_rect.x; + upper_left.y = unscaled_rect.y; + lower_right.x = upper_left.x + unscaled_rect.width; + lower_right.y = upper_left.y + unscaled_rect.height; + + upper_left = unscaled_to_raw_point(upper_left); + lower_right = unscaled_to_raw_point(lower_right); + + if (upper_left.x > lower_right.x) { + int temp = upper_left.x; + upper_left.x = lower_right.x; + lower_right.x = temp; + } + if (upper_left.y > lower_right.y) { + int temp = upper_left.y; + upper_left.y = lower_right.y; + lower_right.y = temp; + } + + Gdk.Rectangle raw_rect = Gdk.Rectangle(); + raw_rect.x = upper_left.x; + raw_rect.y = upper_left.y; + raw_rect.width = lower_right.x - upper_left.x; + raw_rect.height = lower_right.y - upper_left.y; + + return raw_rect; + } + + public PixelTransformationBundle? get_enhance_transformations() { + Gdk.Pixbuf pixbuf = null; + +#if MEASURE_ENHANCE + Timer fetch_timer = new Timer(); +#endif + + try { + pixbuf = get_pixbuf_with_options(Scaling.for_best_fit(360, false), + Photo.Exception.ALL); + +#if MEASURE_ENHANCE + fetch_timer.stop(); +#endif + } catch (Error e) { + warning("Photo: get_enhance_transformations: couldn't obtain pixbuf to build " + + "transform histogram"); + return null; + } + +#if MEASURE_ENHANCE + Timer analyze_timer = new Timer(); +#endif + + PixelTransformationBundle transformations = AutoEnhance.create_auto_enhance_adjustments(pixbuf); + +#if MEASURE_ENHANCE + analyze_timer.stop(); + debug("Auto-Enhance fetch time: %f sec; analyze time: %f sec", fetch_timer.elapsed(), + analyze_timer.elapsed()); +#endif + + return transformations; + } + + public bool enhance() { + PixelTransformationBundle transformations = get_enhance_transformations(); + + if (transformations == null) + return false; + +#if MEASURE_ENHANCE + Timer apply_timer = new Timer(); +#endif + lock (row) { + set_color_adjustments(transformations); + } + +#if MEASURE_ENHANCE + apply_timer.stop(); + debug("Auto-Enhance apply time: %f sec", apply_timer.elapsed()); +#endif + return true; + } +} + +public class LibraryPhotoSourceCollection : MediaSourceCollection { + public enum State { + UNKNOWN, + ONLINE, + OFFLINE, + TRASH, + EDITABLE, + DEVELOPER + } + + public override TransactionController transaction_controller { + get { + if (_transaction_controller == null) + _transaction_controller = new MediaSourceTransactionController(this); + + return _transaction_controller; + } + } + + private TransactionController? _transaction_controller = null; + private Gee.HashMap<File, LibraryPhoto> by_editable_file = new Gee.HashMap<File, LibraryPhoto>( + file_hash, file_equal); + private Gee.HashMap<File, LibraryPhoto> by_raw_development_file = new Gee.HashMap<File, LibraryPhoto>( + file_hash, file_equal); + private Gee.MultiMap<int64?, LibraryPhoto> filesize_to_photo = + new Gee.TreeMultiMap<int64?, LibraryPhoto>(int64_compare); + private Gee.HashMap<LibraryPhoto, int64?> photo_to_master_filesize = + new Gee.HashMap<LibraryPhoto, int64?>(null, null, int64_equal); + private Gee.HashMap<LibraryPhoto, int64?> photo_to_editable_filesize = + new Gee.HashMap<LibraryPhoto, int64?>(null, null, int64_equal); + private Gee.MultiMap<LibraryPhoto, int64?> photo_to_raw_development_filesize = + new Gee.TreeMultiMap<LibraryPhoto, int64?>(); + + public virtual signal void master_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + } + + public virtual signal void editable_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + } + + public virtual signal void baseline_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + } + + public virtual signal void source_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + } + + public LibraryPhotoSourceCollection() { + base ("LibraryPhotoSourceCollection", Photo.get_photo_key); + + get_trashcan().contents_altered.connect(on_trashcan_contents_altered); + get_offline_bin().contents_altered.connect(on_offline_contents_altered); + } + + protected override MediaSourceHoldingTank create_trashcan() { + return new LibraryPhotoSourceHoldingTank(this, check_if_trashed_photo, Photo.get_photo_key); + } + + protected override MediaSourceHoldingTank create_offline_bin() { + return new LibraryPhotoSourceHoldingTank(this, check_if_offline_photo, Photo.get_photo_key); + } + + public override MediaMonitor create_media_monitor(Workers workers, Cancellable cancellable) { + return new PhotoMonitor(workers, cancellable); + } + + public override bool holds_type_of_source(DataSource source) { + return source is LibraryPhoto; + } + + public override string get_typename() { + return Photo.TYPENAME; + } + + public override bool is_file_recognized(File file) { + return PhotoFileFormat.is_file_supported(file); + } + + protected override void notify_contents_altered(Gee.Iterable<DataObject>? added, + Gee.Iterable<DataObject>? removed) { + if (added != null) { + foreach (DataObject object in added) { + LibraryPhoto photo = (LibraryPhoto) object; + + File? editable = photo.get_editable_file(); + if (editable != null) + by_editable_file.set(editable, photo); + photo.editable_replaced.connect(on_editable_replaced); + + Gee.Collection<File> raw_list = photo.get_raw_developer_files(); + if (raw_list != null) + foreach (File f in raw_list) + by_raw_development_file.set(f, photo); + photo.raw_development_modified.connect(on_raw_development_modified); + + int64 master_filesize = photo.get_master_photo_row().filesize; + int64 editable_filesize = photo.get_editable_photo_row() != null + ? photo.get_editable_photo_row().filesize + : -1; + filesize_to_photo.set(master_filesize, photo); + photo_to_master_filesize.set(photo, master_filesize); + if (editable_filesize >= 0) { + filesize_to_photo.set(editable_filesize, photo); + photo_to_editable_filesize.set(photo, editable_filesize); + } + + Gee.Collection<BackingPhotoRow>? raw_rows = photo.get_raw_development_photo_rows(); + if (raw_rows != null) { + foreach (BackingPhotoRow row in raw_rows) { + if (row.filesize >= 0) { + filesize_to_photo.set(row.filesize, photo); + photo_to_raw_development_filesize.set(photo, row.filesize); + } + } + } + } + } + + if (removed != null) { + foreach (DataObject object in removed) { + LibraryPhoto photo = (LibraryPhoto) object; + + File? editable = photo.get_editable_file(); + if (editable != null) { + bool is_removed = by_editable_file.unset(photo.get_editable_file()); + assert(is_removed); + } + photo.editable_replaced.disconnect(on_editable_replaced); + + Gee.Collection<File> raw_list = photo.get_raw_developer_files(); + if (raw_list != null) + foreach (File f in raw_list) + by_raw_development_file.unset(f); + photo.raw_development_modified.disconnect(on_raw_development_modified); + + int64 master_filesize = photo.get_master_photo_row().filesize; + int64 editable_filesize = photo.get_editable_photo_row() != null + ? photo.get_editable_photo_row().filesize + : -1; + filesize_to_photo.remove(master_filesize, photo); + photo_to_master_filesize.unset(photo); + if (editable_filesize >= 0) { + filesize_to_photo.remove(editable_filesize, photo); + photo_to_editable_filesize.unset(photo); + } + + Gee.Collection<BackingPhotoRow>? raw_rows = photo.get_raw_development_photo_rows(); + if (raw_rows != null) { + foreach (BackingPhotoRow row in raw_rows) { + if (row.filesize >= 0) { + filesize_to_photo.remove(row.filesize, photo); + photo_to_raw_development_filesize.remove(photo, row.filesize); + } + } + } + } + } + + base.notify_contents_altered(added, removed); + } + + private void on_editable_replaced(Photo photo, File? old_file, File? new_file) { + if (old_file != null) { + bool is_removed = by_editable_file.unset(old_file); + assert(is_removed); + } + + if (new_file != null) + by_editable_file.set(new_file, (LibraryPhoto) photo); + } + + private void on_raw_development_modified(Photo _photo) { + LibraryPhoto? photo = _photo as LibraryPhoto; + if (photo == null) + return; + + // Unset existing files. + if (photo_to_raw_development_filesize.contains(photo)) { + foreach (int64 s in photo_to_raw_development_filesize.get(photo)) + filesize_to_photo.remove(s, photo); + photo_to_raw_development_filesize.remove_all(photo); + } + + // Add new ones. + Gee.Collection<File> raw_list = photo.get_raw_developer_files(); + if (raw_list != null) + foreach (File f in raw_list) + by_raw_development_file.set(f, photo); + + Gee.Collection<BackingPhotoRow>? raw_rows = photo.get_raw_development_photo_rows(); + if (raw_rows != null) { + foreach (BackingPhotoRow row in raw_rows) { + if (row.filesize > 0) { + filesize_to_photo.set(row.filesize, photo); + photo_to_raw_development_filesize.set(photo, row.filesize); + } + } + } + } + + protected override void items_altered(Gee.Map<DataObject, Alteration> items) { + foreach (DataObject object in items.keys) { + Alteration alteration = items.get(object); + + LibraryPhoto photo = (LibraryPhoto) object; + + if (alteration.has_detail("image", "master") || alteration.has_detail("image", "editable")) { + int64 old_master_filesize = photo_to_master_filesize.get(photo); + int64 old_editable_filesize = photo_to_editable_filesize.has_key(photo) + ? photo_to_editable_filesize.get(photo) + : -1; + + photo_to_master_filesize.unset(photo); + filesize_to_photo.remove(old_master_filesize, photo); + if (old_editable_filesize >= 0) { + photo_to_editable_filesize.unset(photo); + filesize_to_photo.remove(old_editable_filesize, photo); + } + + int64 master_filesize = photo.get_master_photo_row().filesize; + int64 editable_filesize = photo.get_editable_photo_row() != null + ? photo.get_editable_photo_row().filesize + : -1; + photo_to_master_filesize.set(photo, master_filesize); + filesize_to_photo.set(master_filesize, photo); + if (editable_filesize >= 0) { + photo_to_editable_filesize.set(photo, editable_filesize); + filesize_to_photo.set(editable_filesize, photo); + } + } + } + + base.items_altered(items); + } + + // This method adds the photos to the Tags (keywords) that were discovered during import. + public override void postprocess_imported_media(Gee.Collection<MediaSource> media_sources) { + Gee.HashMultiMap<Tag, LibraryPhoto> map = new Gee.HashMultiMap<Tag, LibraryPhoto>(); + foreach (MediaSource media in media_sources) { + LibraryPhoto photo = (LibraryPhoto) media; + PhotoMetadata metadata = photo.get_metadata(); + + // get an index of all the htags in the application + HierarchicalTagIndex global_index = HierarchicalTagIndex.get_global_index(); + + // if any hierarchical tag information is available, process it first. hierarchical tag + // information must be processed first to avoid tag duplication, since most photo + // management applications that support hierarchical tags also "flatten" the + // hierarchical tag information as plain old tags. If a tag name appears as part of + // a hierarchical path, it needs to be excluded from being processed as a flat tag + HierarchicalTagIndex? htag_index = null; + if (metadata.has_hierarchical_keywords()) { + htag_index = HierarchicalTagUtilities.process_hierarchical_import_keywords( + metadata.get_hierarchical_keywords()); + } + + if (photo.get_import_keywords() != null) { + foreach (string keyword in photo.get_import_keywords()) { + if (htag_index != null && htag_index.is_tag_in_index(keyword)) + continue; + + string? name = Tag.prep_tag_name(keyword); + + if (global_index.is_tag_in_index(name)) { + string most_derived_path = global_index.get_path_for_name(name); + map.set(Tag.for_path(most_derived_path), photo); + continue; + } + + if (name != null) + map.set(Tag.for_path(name), photo); + } + } + + if (metadata.has_hierarchical_keywords()) { + foreach (string path in htag_index.get_all_paths()) { + string? name = Tag.prep_tag_name(path); + if (name != null) + map.set(Tag.for_path(name), photo); + } + } + } + + foreach (MediaSource media in media_sources) { + LibraryPhoto photo = (LibraryPhoto) media; + photo.clear_import_keywords(); + } + + foreach (Tag tag in map.get_keys()) + tag.attach_many(map.get(tag)); + + base.postprocess_imported_media(media_sources); + } + + // This is only called by LibraryPhoto. + public virtual void notify_master_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + master_reimported(photo, metadata); + } + + // This is only called by LibraryPhoto. + public virtual void notify_editable_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + editable_reimported(photo, metadata); + } + + // This is only called by LibraryPhoto. + public virtual void notify_source_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + source_reimported(photo, metadata); + } + + // This is only called by LibraryPhoto. + public virtual void notify_baseline_reimported(LibraryPhoto photo, PhotoMetadata? metadata) { + baseline_reimported(photo, metadata); + } + + protected override MediaSource? fetch_by_numeric_id(int64 numeric_id) { + return fetch(PhotoID(numeric_id)); + } + + private void on_trashcan_contents_altered(Gee.Collection<DataSource>? added, + Gee.Collection<DataSource>? removed) { + trashcan_contents_altered((Gee.Collection<LibraryPhoto>?) added, + (Gee.Collection<LibraryPhoto>?) removed); + } + + private bool check_if_trashed_photo(DataSource source, Alteration alteration) { + return ((LibraryPhoto) source).is_trashed(); + } + + private void on_offline_contents_altered(Gee.Collection<DataSource>? added, + Gee.Collection<DataSource>? removed) { + offline_contents_altered((Gee.Collection<LibraryPhoto>?) added, + (Gee.Collection<LibraryPhoto>?) removed); + } + + private bool check_if_offline_photo(DataSource source, Alteration alteration) { + return ((LibraryPhoto) source).is_offline(); + } + + public override MediaSource? fetch_by_source_id(string source_id) { + assert(source_id.has_prefix(Photo.TYPENAME)); + string numeric_only = source_id.substring(Photo.TYPENAME.length, -1); + + return fetch_by_numeric_id(parse_int64(numeric_only, 16)); + } + + public override Gee.Collection<string> get_event_source_ids(EventID event_id){ + return PhotoTable.get_instance().get_event_source_ids(event_id); + } + + public LibraryPhoto fetch(PhotoID photo_id) { + return (LibraryPhoto) fetch_by_key(photo_id.id); + } + + public LibraryPhoto? fetch_by_editable_file(File file) { + return by_editable_file.get(file); + } + + public LibraryPhoto? fetch_by_raw_development_file(File file) { + return by_raw_development_file.get(file); + } + + private void compare_backing(LibraryPhoto photo, FileInfo info, + Gee.Collection<LibraryPhoto> matches_master, Gee.Collection<LibraryPhoto> matches_editable, + Gee.Collection<LibraryPhoto> matches_development) { + if (photo.get_master_photo_row().matches_file_info(info)) + matches_master.add(photo); + + BackingPhotoRow? editable = photo.get_editable_photo_row(); + if (editable != null && editable.matches_file_info(info)) + matches_editable.add(photo); + + Gee.Collection<BackingPhotoRow>? development = photo.get_raw_development_photo_rows(); + if (development != null) { + foreach (BackingPhotoRow row in development) { + if (row.matches_file_info(info)) { + matches_development.add(photo); + + break; + } + } + } + } + + // Adds photos to both collections if their filesize and timestamp match. Note that it's possible + // for a single photo to be added to both collections. + public void fetch_by_matching_backing(FileInfo info, Gee.Collection<LibraryPhoto> matches_master, + Gee.Collection<LibraryPhoto> matches_editable, Gee.Collection<LibraryPhoto> matched_development) { + foreach (LibraryPhoto photo in filesize_to_photo.get(info.get_size())) + compare_backing(photo, info, matches_master, matches_editable, matched_development); + + foreach (MediaSource media in get_offline_bin_contents()) + compare_backing((LibraryPhoto) media, info, matches_master, matches_editable, matched_development); + } + + public PhotoID get_basename_filesize_duplicate(string basename, int64 filesize) { + foreach (LibraryPhoto photo in filesize_to_photo.get(filesize)) { + if (utf8_ci_compare(photo.get_master_file().get_basename(), basename) == 0) + return photo.get_photo_id(); + } + + return PhotoID(); // default constructor for PhotoIDs will create an invalid ID -- + // this is just the behavior that we want + } + + public bool has_basename_filesize_duplicate(string basename, int64 filesize) { + return get_basename_filesize_duplicate(basename, filesize).is_valid(); + } + + public LibraryPhoto? get_trashed_by_file(File file) { + LibraryPhoto? photo = (LibraryPhoto?) get_trashcan().fetch_by_master_file(file); + if (photo == null) + photo = (LibraryPhoto?) ((LibraryPhotoSourceHoldingTank) get_trashcan()). + fetch_by_backing_file(file); + + return photo; + } + + public LibraryPhoto? get_trashed_by_md5(string md5) { + return (LibraryPhoto?) get_trashcan().fetch_by_md5(md5); + } + + public LibraryPhoto? get_offline_by_file(File file) { + LibraryPhoto? photo = (LibraryPhoto?) get_offline_bin().fetch_by_master_file(file); + if (photo == null) + photo = (LibraryPhoto?) ((LibraryPhotoSourceHoldingTank) get_offline_bin()). + fetch_by_backing_file(file); + + return photo; + } + + public LibraryPhoto? get_offline_by_md5(string md5) { + return (LibraryPhoto?) get_offline_bin().fetch_by_md5(md5); + } + + public int get_offline_count() { + return get_offline_bin().get_count(); + } + + public LibraryPhoto? get_state_by_file(File file, out State state) { + LibraryPhoto? photo = (LibraryPhoto?) fetch_by_master_file(file); + if (photo != null) { + state = State.ONLINE; + + return photo; + } + + photo = fetch_by_editable_file(file); + if (photo != null) { + state = State.EDITABLE; + + return photo; + } + + photo = fetch_by_raw_development_file(file); + if (photo != null) { + state = State.DEVELOPER; + + return photo; + } + + photo = get_trashed_by_file(file) as LibraryPhoto; + if (photo != null) { + state = State.TRASH; + + return photo; + } + + photo = get_offline_by_file(file) as LibraryPhoto; + if (photo != null) { + state = State.OFFLINE; + + return photo; + } + + state = State.UNKNOWN; + + return null; + } + + public override bool has_backlink(SourceBacklink backlink) { + if (base.has_backlink(backlink)) + return true; + + if (get_trashcan().has_backlink(backlink)) + return true; + + if (get_offline_bin().has_backlink(backlink)) + return true; + + return false; + } + + public override void remove_backlink(SourceBacklink backlink) { + get_trashcan().remove_backlink(backlink); + get_offline_bin().remove_backlink(backlink); + + base.remove_backlink(backlink); + } +} + +// +// LibraryPhoto +// + +public class LibraryPhoto : Photo, Flaggable, Monitorable { + // Top 16 bits are reserved for Photo + // Warning: FLAG_HIDDEN and FLAG_FAVORITE have been deprecated for ratings and rating filters. + private const uint64 FLAG_HIDDEN = 0x0000000000000001; + private const uint64 FLAG_FAVORITE = 0x0000000000000002; + private const uint64 FLAG_TRASH = 0x0000000000000004; + private const uint64 FLAG_OFFLINE = 0x0000000000000008; + private const uint64 FLAG_FLAGGED = 0x0000000000000010; + + public static LibraryPhotoSourceCollection global = null; + + private bool block_thumbnail_generation = false; + private OneShotScheduler thumbnail_scheduler = null; + private Gee.Collection<string>? import_keywords; + + private LibraryPhoto(PhotoRow row) { + base (row); + + this.import_keywords = null; + + thumbnail_scheduler = new OneShotScheduler("LibraryPhoto", generate_thumbnails); + + // if marked in a state where they're held in an orphanage, rehydrate their backlinks + if ((row.flags & (FLAG_TRASH | FLAG_OFFLINE)) != 0) + rehydrate_backlinks(global, row.backlinks); + + if ((row.flags & (FLAG_HIDDEN | FLAG_FAVORITE)) != 0) + upgrade_rating_flags(row.flags); + } + + private LibraryPhoto.from_import_params(PhotoImportParams import_params) { + base (import_params.row); + + this.import_keywords = import_params.keywords; + thumbnail_scheduler = new OneShotScheduler("LibraryPhoto", generate_thumbnails); + + // if marked in a state where they're held in an orphanage, rehydrate their backlinks + if ((import_params.row.flags & (FLAG_TRASH | FLAG_OFFLINE)) != 0) + rehydrate_backlinks(global, import_params.row.backlinks); + + if ((import_params.row.flags & (FLAG_HIDDEN | FLAG_FAVORITE)) != 0) + upgrade_rating_flags(import_params.row.flags); + } + + public static void init(ProgressMonitor? monitor = null) { + global = new LibraryPhotoSourceCollection(); + + // prefetch all the photos from the database and add them to the global collection ... + // do in batches to take advantage of add_many() + Gee.ArrayList<PhotoRow?> all = PhotoTable.get_instance().get_all(); + Gee.ArrayList<LibraryPhoto> all_photos = new Gee.ArrayList<LibraryPhoto>(); + Gee.ArrayList<LibraryPhoto> trashed_photos = new Gee.ArrayList<LibraryPhoto>(); + Gee.ArrayList<LibraryPhoto> offline_photos = new Gee.ArrayList<LibraryPhoto>(); + int count = all.size; + for (int ctr = 0; ctr < count; ctr++) { + PhotoRow row = all.get(ctr); + LibraryPhoto photo = new LibraryPhoto(row); + uint64 flags = row.flags; + + if ((flags & FLAG_TRASH) != 0) + trashed_photos.add(photo); + else if ((flags & FLAG_OFFLINE) != 0) + offline_photos.add(photo); + else + all_photos.add(photo); + + if (monitor != null) + monitor(ctr, count); + } + + global.add_many(all_photos); + global.add_many_to_trash(trashed_photos); + global.add_many_to_offline(offline_photos); + } + + public static void terminate() { + } + + // This accepts a PhotoRow that was prepared with Photo.prepare_for_import and + // has not already been inserted in the database. See PhotoTable.add() for which fields are + // used and which are ignored. The PhotoRow itself will be modified with the remaining values + // as they are stored in the database. + public static ImportResult import_create(PhotoImportParams params, out LibraryPhoto photo) { + // add to the database + PhotoID photo_id = PhotoTable.get_instance().add(params.row); + if (photo_id.is_invalid()) { + photo = null; + + return ImportResult.DATABASE_ERROR; + } + + // create local object but don't add to global until thumbnails generated + photo = new LibraryPhoto.from_import_params(params); + + return ImportResult.SUCCESS; + } + + public static void import_failed(LibraryPhoto photo) { + try { + PhotoTable.get_instance().remove(photo.get_photo_id()); + } catch (DatabaseError err) { + AppWindow.database_error(err); + } + } + + protected override void notify_master_reimported(PhotoMetadata? metadata) { + base.notify_master_reimported(metadata); + + global.notify_master_reimported(this, metadata); + } + + protected override void notify_editable_reimported(PhotoMetadata? metadata) { + base.notify_editable_reimported(metadata); + + global.notify_editable_reimported(this, metadata); + } + + protected override void notify_source_reimported(PhotoMetadata? metadata) { + base.notify_source_reimported(metadata); + + global.notify_source_reimported(this, metadata); + } + + protected override void notify_baseline_reimported(PhotoMetadata? metadata) { + base.notify_baseline_reimported(metadata); + + global.notify_baseline_reimported(this, metadata); + } + + private void generate_thumbnails() { + try { + ThumbnailCache.import_from_source(this, true); + } catch (Error err) { + warning("Unable to generate thumbnails for %s: %s", to_string(), err.message); + } + + // fire signal that thumbnails have changed + notify_thumbnail_altered(); + } + + // These keywords are only used during import and should not be relied upon elsewhere. + public Gee.Collection<string>? get_import_keywords() { + return import_keywords; + } + + public void clear_import_keywords() { + import_keywords = null; + } + + public override void notify_altered(Alteration alteration) { + // generate new thumbnails in the background + if (!block_thumbnail_generation && alteration.has_subject("image")) + thumbnail_scheduler.at_priority_idle(Priority.LOW); + + base.notify_altered(alteration); + } + + public override Gdk.Pixbuf get_preview_pixbuf(Scaling scaling) throws Error { + Gdk.Pixbuf pixbuf = get_thumbnail(ThumbnailCache.Size.BIG); + + return scaling.perform_on_pixbuf(pixbuf, Gdk.InterpType.BILINEAR, true); + } + + public override void rotate(Rotation rotation) { + // block thumbnail generation for this operation; taken care of below + block_thumbnail_generation = true; + base.rotate(rotation); + block_thumbnail_generation = false; + + // because rotations are (a) common and available everywhere in the app, (b) the user expects + // a level of responsiveness not necessarily required by other modifications, (c) can be + // performed on multiple images simultaneously, and (d) can't cache a lot of full-sized + // pixbufs for rotate-and-scale ops, perform the rotation directly on the already-modified + // thumbnails. + try { + ThumbnailCache.rotate(this, rotation); + } catch (Error err) { + // TODO: Mark thumbnails as dirty in database + warning("Unable to update thumbnails for %s: %s", to_string(), err.message); + } + + notify_thumbnail_altered(); + } + + // Returns unscaled thumbnail with all modifications applied applicable to the scale + public override Gdk.Pixbuf? get_thumbnail(int scale) throws Error { + return ThumbnailCache.fetch(this, scale); + } + + // Duplicates a backing photo row, returning the ID. + // An invalid ID will be returned if the backing photo row is not set or is invalid. + private BackingPhotoID duplicate_backing_photo(BackingPhotoRow? backing) throws Error { + BackingPhotoID backing_id = BackingPhotoID(); + if (backing == null || backing.filepath == null) + return backing_id; // empty, invalid ID + + File file = File.new_for_path(backing.filepath); + if (file.query_exists()) { + File dupe_file = LibraryFiles.duplicate(file, on_duplicate_progress, true); + + DetectedPhotoInformation detected; + BackingPhotoRow? state = query_backing_photo_row(dupe_file, PhotoFileSniffer.Options.NO_MD5, + out detected); + if (state != null) { + BackingPhotoTable.get_instance().add(state); + backing_id = state.id; + } + } + + return backing_id; + } + + public LibraryPhoto duplicate() throws Error { + // clone the master file + File dupe_file = LibraryFiles.duplicate(get_master_file(), on_duplicate_progress, true); + + // Duplicate editable and raw developments (if they exist) + BackingPhotoID dupe_editable_id = duplicate_backing_photo(get_editable_photo_row()); + BackingPhotoID dupe_raw_shotwell_id = duplicate_backing_photo( + get_raw_development_photo_row(RawDeveloper.SHOTWELL)); + BackingPhotoID dupe_raw_camera_id = duplicate_backing_photo( + get_raw_development_photo_row(RawDeveloper.CAMERA)); + BackingPhotoID dupe_raw_embedded_id = duplicate_backing_photo( + get_raw_development_photo_row(RawDeveloper.EMBEDDED)); + + // clone the row in the database for these new backing files + PhotoID dupe_id = PhotoTable.get_instance().duplicate(get_photo_id(), dupe_file.get_path(), + dupe_editable_id, dupe_raw_shotwell_id, dupe_raw_camera_id, dupe_raw_embedded_id); + PhotoRow dupe_row = PhotoTable.get_instance().get_row(dupe_id); + + // build the DataSource for the duplicate + LibraryPhoto dupe = new LibraryPhoto(dupe_row); + + // clone thumbnails + ThumbnailCache.duplicate(this, dupe); + + // add it to the SourceCollection; this notifies everyone interested of its presence + global.add(dupe); + + // if it is not in "No Event" attach to event + if (dupe.get_event() != null) + dupe.get_event().attach(dupe); + + // attach tags + Gee.Collection<Tag>? tags = Tag.global.fetch_for_source(this); + if (tags != null) { + foreach (Tag tag in tags) { + tag.attach(dupe); + } + } + + return dupe; + } + + private void on_duplicate_progress(int64 current, int64 total) { + spin_event_loop(); + } + + private void upgrade_rating_flags(uint64 flags) { + if ((flags & FLAG_HIDDEN) != 0) { + set_rating(Rating.REJECTED); + remove_flags(FLAG_HIDDEN); + } + + if ((flags & FLAG_FAVORITE) != 0) { + set_rating(Rating.FIVE); + remove_flags(FLAG_FAVORITE); + } + } + + // Blotto even! + public override bool is_trashed() { + return is_flag_set(FLAG_TRASH); + } + + public override void trash() { + add_flags(FLAG_TRASH); + } + + public override void untrash() { + remove_flags(FLAG_TRASH); + } + + public override bool is_offline() { + return is_flag_set(FLAG_OFFLINE); + } + + public override void mark_offline() { + add_flags(FLAG_OFFLINE); + } + + public override void mark_online() { + remove_flags(FLAG_OFFLINE); + } + + public bool is_flagged() { + return is_flag_set(FLAG_FLAGGED); + } + + public void mark_flagged() { + add_flags(FLAG_FLAGGED, new Alteration("metadata", "flagged")); + } + + public void mark_unflagged() { + remove_flags(FLAG_FLAGGED, new Alteration("metadata", "flagged")); + } + + public override bool internal_delete_backing() throws Error { + // allow the base classes to work first because delete_original_file() will attempt to + // remove empty directories as well + if (!base.internal_delete_backing()) + return false; + + return delete_original_file(); + } + + public override void destroy() { + PhotoID photo_id = get_photo_id(); + + // remove all cached thumbnails + ThumbnailCache.remove(this); + + // remove from photo table -- should be wiped from storage now (other classes may have added + // photo_id to other parts of the database ... it's their responsibility to remove them + // when removed() is called) + try { + PhotoTable.get_instance().remove(photo_id); + } catch (DatabaseError err) { + AppWindow.database_error(err); + } + + base.destroy(); + } + + public static bool has_nontrash_duplicate(File? file, string? thumbnail_md5, string? full_md5, + PhotoFileFormat file_format) { + return get_nontrash_duplicate(file, thumbnail_md5, full_md5, file_format).is_valid(); + } + + public static PhotoID get_nontrash_duplicate(File? file, string? thumbnail_md5, + string? full_md5, PhotoFileFormat file_format) { + PhotoID[]? ids = get_duplicate_ids(file, thumbnail_md5, full_md5, file_format); + + if (ids == null || ids.length == 0) + return PhotoID(); // return an invalid PhotoID + + foreach (PhotoID id in ids) { + LibraryPhoto photo = LibraryPhoto.global.fetch(id); + if (photo != null && !photo.is_trashed()) + return id; + } + + return PhotoID(); + } + + protected override bool has_user_generated_metadata() { + Gee.List<Tag>? tags = Tag.global.fetch_for_source(this); + + PhotoMetadata? metadata = get_metadata(); + if (metadata == null) + return tags != null || tags.size > 0 || get_rating() != Rating.UNRATED; + + if (get_rating() != metadata.get_rating()) + return true; + + Gee.Set<string>? keywords = metadata.get_keywords(); + int tags_count = (tags != null) ? tags.size : 0; + int keywords_count = (keywords != null) ? keywords.size : 0; + + if (tags_count != keywords_count) + return true; + + if (tags != null && keywords != null) { + foreach (Tag tag in tags) { + if (!keywords.contains(tag.get_name().normalize())) + return true; + } + } + + return false; + } + + protected override void set_user_metadata_for_export(PhotoMetadata metadata) { + Gee.List<Tag>? photo_tags = Tag.global.fetch_for_source(this); + if(photo_tags != null) { + Gee.Collection<string> string_tags = new Gee.ArrayList<string>(); + foreach (Tag tag in photo_tags) { + string_tags.add(tag.get_name()); + } + metadata.set_keywords(string_tags); + } else + metadata.set_keywords(null); + + metadata.set_rating(get_rating()); + } + + protected override void apply_user_metadata_for_reimport(PhotoMetadata metadata) { + HierarchicalTagIndex? new_htag_index = null; + + if (metadata.has_hierarchical_keywords()) { + new_htag_index = HierarchicalTagUtilities.process_hierarchical_import_keywords( + metadata.get_hierarchical_keywords()); + } + + Gee.Collection<string>? keywords = metadata.get_keywords(); + if (keywords != null) { + foreach (string keyword in keywords) { + if (new_htag_index != null && new_htag_index.is_tag_in_index(keyword)) + continue; + + string safe_keyword = HierarchicalTagUtilities.make_flat_tag_safe(keyword); + string promoted_keyword = HierarchicalTagUtilities.flat_to_hierarchical( + safe_keyword); + + if (Tag.global.exists(safe_keyword)) { + Tag.for_path(safe_keyword).attach(this); + continue; + } + + if (Tag.global.exists(promoted_keyword)) { + Tag.for_path(promoted_keyword).attach(this); + continue; + } + + Tag.for_path(keyword).attach(this); + } + } + + if (new_htag_index != null) { + foreach (string path in new_htag_index.get_all_paths()) + Tag.for_path(path).attach(this); + } + } +} + +// Used for trash and offline bin of LibraryPhotoSourceCollection +public class LibraryPhotoSourceHoldingTank : MediaSourceHoldingTank { + private Gee.HashMap<File, LibraryPhoto> editable_file_map = new Gee.HashMap<File, LibraryPhoto>( + file_hash, file_equal); + private Gee.HashMap<File, LibraryPhoto> development_file_map = new Gee.HashMap<File, LibraryPhoto>( + file_hash, file_equal); + private Gee.MultiMap<LibraryPhoto, File> reverse_editable_file_map + = new Gee.HashMultiMap<LibraryPhoto, File>(null, null, file_hash, file_equal); + private Gee.MultiMap<LibraryPhoto, File> reverse_development_file_map + = new Gee.HashMultiMap<LibraryPhoto, File>(null, null, file_hash, file_equal); + + public LibraryPhotoSourceHoldingTank(LibraryPhotoSourceCollection sources, + SourceHoldingTank.CheckToKeep check_to_keep, GetSourceDatabaseKey get_key) { + base (sources, check_to_keep, get_key); + } + + public LibraryPhoto? fetch_by_backing_file(File file) { + LibraryPhoto? ret = null; + ret = editable_file_map.get(file); + if (ret != null) + return ret; + + return development_file_map.get(file); + } + + protected override void notify_contents_altered(Gee.Collection<DataSource>? added, + Gee.Collection<DataSource>? removed) { + if (added != null) { + foreach (DataSource source in added) { + LibraryPhoto photo = (LibraryPhoto) source; + + // Editable files. + if (photo.get_editable_file() != null) { + editable_file_map.set(photo.get_editable_file(), photo); + reverse_editable_file_map.set(photo, photo.get_editable_file()); + } + + // RAW developments. + Gee.Collection<File>? raw_files = photo.get_raw_developer_files(); + if (raw_files != null) { + foreach (File f in raw_files) { + development_file_map.set(f, photo); + reverse_development_file_map.set(photo, f); + } + } + + photo.editable_replaced.connect(on_editable_replaced); + photo.raw_development_modified.connect(on_raw_development_modified); + } + } + + if (removed != null) { + foreach (DataSource source in removed) { + LibraryPhoto photo = (LibraryPhoto) source; + foreach (File f in reverse_editable_file_map.get(photo)) + editable_file_map.unset(f); + + foreach (File f in reverse_development_file_map.get(photo)) + development_file_map.unset(f); + + reverse_editable_file_map.remove_all(photo); + reverse_development_file_map.remove_all(photo); + + photo.editable_replaced.disconnect(on_editable_replaced); + photo.raw_development_modified.disconnect(on_raw_development_modified); + } + } + + base.notify_contents_altered(added, removed); + } + + private void on_editable_replaced(Photo _photo, File? old_file, File? new_file) { + LibraryPhoto? photo = _photo as LibraryPhoto; + assert(photo != null); + + if (old_file != null) { + editable_file_map.unset(old_file); + reverse_editable_file_map.remove(photo, old_file); + } + + if (new_file != null) + editable_file_map.set(new_file, photo); + reverse_editable_file_map.set(photo, new_file); + } + + private void on_raw_development_modified(Photo _photo) { + LibraryPhoto? photo = _photo as LibraryPhoto; + assert(photo != null); + + // Unset existing files. + if (reverse_development_file_map.contains(photo)) { + foreach (File f in reverse_development_file_map.get(photo)) + development_file_map.unset(f); + reverse_development_file_map.remove_all(photo); + } + + // Add new ones. + Gee.Collection<File> raw_list = photo.get_raw_developer_files(); + if (raw_list != null) { + foreach (File f in raw_list) { + development_file_map.set(f, photo); + reverse_development_file_map.set(photo, f); + } + } + } +} + |