Imported Upstream version 3.13.4.2upstream/3.13.4.2

1 files changed, 66 insertions, 13 deletions

diff --git a/src/book.vala b/src/book.vala
index 97e49a8..db9be0b 100644
--- a/src/book.vala
+++ b/src/book.vala
@@ -83,12 +83,56 @@ public class Book
         needs_saving = true;
     }
 
+    public void reverse ()
+    {
+        var new_pages = new List<Page> ();
+        foreach (var page in pages)
+            new_pages.prepend (page);
+        pages = (owned) new_pages;
+
+        reordered ();
+        needs_saving = true;
+    }
+
+    public void combine_sides ()
+    {
+        var n_front = n_pages - n_pages / 2;
+        var new_pages = new List<Page> ();
+        for (var i = 0; i < n_pages; i++)
+        {
+            if (i % 2 == 0)
+                new_pages.append (pages.nth_data (i / 2));
+            else
+                new_pages.append (pages.nth_data (n_front + (i / 2)));
+        }
+        pages = (owned) new_pages;
+
+        reordered ();
+        needs_saving = true;
+    }
+
+    public void combine_sides_reverse ()
+    {
+        var new_pages = new List<Page> ();
+        for (var i = 0; i < n_pages; i++)
+        {
+            if (i % 2 == 0)
+                new_pages.append (pages.nth_data (i / 2));
+            else
+                new_pages.append (pages.nth_data (n_pages - 1 - (i / 2)));
+        }
+        pages = (owned) new_pages;
+
+        reordered ();
+        needs_saving = true;
+    }
+
     public void delete_page (Page page)
     {
         page.pixels_changed.disconnect (page_changed_cb);
         page.crop_changed.disconnect (page_changed_cb);
-        page_removed (page);
         pages.remove (page);
+        page_removed (page);
         needs_saving = true;
     }
 
@@ -153,8 +197,8 @@ public class Book
         {
             var page = get_page (i);
             var image = page.get_image (true);
-            var width = image.get_width () * 72.0 / page.dpi;
-            var height = image.get_height () * 72.0 / page.dpi;
+            var width = image.width * 72.0 / page.dpi;
+            var height = image.height * 72.0 / page.dpi;
             surface.set_size (width, height);
             save_ps_pdf_surface (surface, image, page.dpi);
             surface.show_page ();
@@ -212,6 +256,11 @@ public class Book
 
     private void save_pdf (File file, int quality) throws Error
     {
+        /* Generate a random ID for this file */
+        var id = "";
+        for (var i = 0; i < 4; i++)
+            id += "%08x".printf (Random.next_int ());
+
         var stream = file.replace (null, false, FileCreateFlags.NONE, null);
         var writer = new PDFWriter (stream);
 
@@ -227,6 +276,7 @@ public class Book
         writer.write_string ("<<\n");
         writer.write_string ("/Type /Catalog\n");
         //FIXMEwriter.write_string ("/Metadata %u 0 R\n".printf (catalog_number + 1));
+        //FIXMEwriter.write_string ("/MarkInfo << /Marked true >>");
         writer.write_string ("/Pages %u 0 R\n".printf (catalog_number + 1)); //+2
         writer.write_string (">>\n");
         writer.write_string ("endobj\n");
@@ -264,8 +314,8 @@ public class Book
         {
             var page = get_page (i);
             var image = page.get_image (true);
-            var width = image.get_width ();
-            var height = image.get_height ();
+            var width = image.width;
+            var height = image.height;
             unowned uint8[] pixels = image.get_pixels ();
             var page_width = width * 72.0 / page.dpi;
             var page_height = height * 72.0 / page.dpi;
@@ -284,7 +334,7 @@ public class Book
                 data = new uint8[data_length];
                 for (var row = 0; row < height; row++)
                 {
-                    var in_offset = row * image.get_rowstride ();
+                    var in_offset = row * image.rowstride;
                     var out_offset = row * width * 3;
                     for (var x = 0; x < width; x++)
                     {
@@ -314,7 +364,7 @@ public class Book
                         shift_count = 6;
                     }
 
-                    var in_offset = row * image.get_rowstride ();
+                    var in_offset = row * image.rowstride;
                     for (var x = 0; x < width; x++)
                     {
                         /* Clear byte */
@@ -359,7 +409,7 @@ public class Book
                         mask = 0x80;
                     }
 
-                    var in_offset = row * image.get_rowstride ();
+                    var in_offset = row * image.rowstride;
                     for (var x = 0; x < width; x++)
                     {
                         /* Clear byte */
@@ -388,7 +438,7 @@ public class Book
                 data = new uint8 [data_length];
                 for (var row = 0; row < height; row++)
                 {
-                    var in_offset = row * image.get_rowstride ();
+                    var in_offset = row * image.rowstride;
                     var out_offset = row * width;
                     for (var x = 0; x < width; x++)
                         data[out_offset+x] = pixels[in_offset+x*3];
@@ -457,7 +507,7 @@ public class Book
             number = writer.start_object ();
             writer.write_string ("%u 0 obj\n".printf (number));
             writer.write_string ("<<\n");
-            writer.write_string ("/Length %d\n".printf (command.length + 1));
+            writer.write_string ("/Length %d\n".printf (command.length));
             writer.write_string (">>\n");
             writer.write_string ("stream\n");
             writer.write_string (command);
@@ -478,19 +528,22 @@ public class Book
         writer.write_string ("endobj\n");
 
         /* Cross-reference table */
+        writer.write_string ("\n");
         var xref_offset = writer.offset;
         writer.write_string ("xref\n");
-        writer.write_string ("1 %zu\n".printf (writer.object_offsets.length ()));
+        writer.write_string ("0 %zu\n".printf (writer.object_offsets.length () + 1));
+        writer.write_string ("0000000000 65535 f \n");
         foreach (var offset in writer.object_offsets)
             writer.write_string ("%010zu 00000 n \n".printf (offset));
 
         /* Trailer */
+        writer.write_string ("\n");
         writer.write_string ("trailer\n");
         writer.write_string ("<<\n");
-        writer.write_string ("/Size %zu\n".printf (writer.object_offsets.length ()));
+        writer.write_string ("/Size %zu\n".printf (writer.object_offsets.length () + 1));
         writer.write_string ("/Info %u 0 R\n".printf (info_number));
         writer.write_string ("/Root %u 0 R\n".printf (catalog_number));
-        //FIXME: writer.write_string ("/ID [<...> <...>]\n");
+        writer.write_string ("/ID [<%s> <%s>]\n".printf (id, id));
         writer.write_string (">>\n");
         writer.write_string ("startxref\n");
         writer.write_string ("%zu\n".printf (xref_offset));