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-rw-r--r--src/gui/iconSelectWindow.vala200
1 files changed, 161 insertions, 39 deletions
diff --git a/src/gui/iconSelectWindow.vala b/src/gui/iconSelectWindow.vala
index 2274ec5..01a4a40 100644
--- a/src/gui/iconSelectWindow.vala
+++ b/src/gui/iconSelectWindow.vala
@@ -19,45 +19,17 @@ namespace GnomePie {
/////////////////////////////////////////////////////////////////////////
/// A window which allows selection of an Icon of the user's current icon
-/// theme. Loading of Icons happens in an extra thread and a spinner is
-/// displayed while loading.
+/// theme. Custom icons/images can be selested as well. Loading of icons
+/// happens in an extra thread and a spinner is displayed while loading.
/////////////////////////////////////////////////////////////////////////
public class IconSelectWindow : Gtk.Dialog {
- private static Gtk.ListStore icon_list = null;
-
- private static bool loading {get; set; default = false;}
- private static bool need_reload {get; set; default = true;}
+ /////////////////////////////////////////////////////////////////////
+ /// The currently selected icon. If set, this icon gets focused.
+ /////////////////////////////////////////////////////////////////////
- private const string disabled_contexts = "Animations, FileSystems, MimeTypes";
- private Gtk.TreeModelFilter icon_list_filtered = null;
- private Gtk.IconView icon_view = null;
- private Gtk.Spinner spinner = null;
-
- private Gtk.FileChooserWidget file_chooser = null;
-
- private Gtk.Notebook tabs = null;
-
- private class ListEntry {
- public string name;
- public IconContext context;
- public Gdk.Pixbuf pixbuf;
- }
-
- private GLib.AsyncQueue<ListEntry?> load_queue;
-
- private enum IconContext {
- ALL,
- APPS,
- ACTIONS,
- PLACES,
- FILES,
- EMOTES,
- OTHER
- }
-
- public string _active_icon = "application-default-icon";
+ private string _active_icon = "application-default-icon";
public string active_icon {
get {
@@ -85,7 +57,104 @@ public class IconSelectWindow : Gtk.Dialog {
}
}
+ /////////////////////////////////////////////////////////////////////
+ /// This signal gets emitted when the user selects a new icon.
+ /////////////////////////////////////////////////////////////////////
+
public signal void on_select(string icon_name);
+
+ /////////////////////////////////////////////////////////////////////
+ /// The ListStore storing all theme-icons.
+ /////////////////////////////////////////////////////////////////////
+
+ private static Gtk.ListStore icon_list = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// True, if the icon theme is currently reloaded.
+ /////////////////////////////////////////////////////////////////////
+
+ private static bool loading = false;
+
+ /////////////////////////////////////////////////////////////////////
+ /// If set to true, the icon list will be reloaded next time the
+ /// window opens.
+ /////////////////////////////////////////////////////////////////////
+
+ private static bool need_reload = true;
+
+ /////////////////////////////////////////////////////////////////////
+ /// Icons of these contexts won't appear in the list.
+ /////////////////////////////////////////////////////////////////////
+
+ private const string disabled_contexts = "Animations, FileSystems";
+
+ /////////////////////////////////////////////////////////////////////
+ /// The list of icons, filtered according to the chosen type and
+ /// filter string.
+ /////////////////////////////////////////////////////////////////////
+
+ private Gtk.TreeModelFilter icon_list_filtered = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// The Gtk widget displaying the icons.
+ /////////////////////////////////////////////////////////////////////
+
+ private Gtk.IconView icon_view = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// This spinner is displayed when the icons are loaded.
+ /////////////////////////////////////////////////////////////////////
+
+ private Gtk.Spinner spinner = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// A Gtk widget used for custom icon/image selection.
+ /////////////////////////////////////////////////////////////////////
+
+ private Gtk.FileChooserWidget file_chooser = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// The notebook containing the different icon choice possibilities:
+ /// from the theme or custom.
+ /////////////////////////////////////////////////////////////////////
+
+ private Gtk.Notebook tabs = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// A little structure containing data for one icon in the icon_view.
+ /////////////////////////////////////////////////////////////////////
+
+ private class ListEntry {
+ public string name;
+ public IconContext context;
+ public Gdk.Pixbuf pixbuf;
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// This queue is used for icon loading. A loading thread pushes
+ /// icons into it --- the main thread updates the icon_view
+ /// accordingly.
+ /////////////////////////////////////////////////////////////////////
+
+ private GLib.AsyncQueue<ListEntry?> load_queue;
+
+ /////////////////////////////////////////////////////////////////////
+ /// Possible icon types.
+ /////////////////////////////////////////////////////////////////////
+
+ private enum IconContext {
+ ALL,
+ APPS,
+ ACTIONS,
+ PLACES,
+ FILES,
+ EMOTES,
+ OTHER
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// C'tor, creates a new IconSelectWindow.
+ /////////////////////////////////////////////////////////////////////
public IconSelectWindow() {
this.title = _("Choose an Icon");
@@ -94,15 +163,22 @@ public class IconSelectWindow : Gtk.Dialog {
this.load_queue = new GLib.AsyncQueue<ListEntry?>();
if (this.icon_list == null) {
- this.icon_list = new Gtk.ListStore(3, typeof(string), typeof(IconContext), typeof(Gdk.Pixbuf));
+ this.icon_list = new Gtk.ListStore(3, typeof(string), // icon name
+ typeof(IconContext), // icon type
+ typeof(Gdk.Pixbuf)); // the icon itself
+
+ // disable sorting until all icons are loaded
+ // else loading becomes horribly slow
this.icon_list.set_default_sort_func(() => {return 0;});
+ // reload if icon theme changes
Gtk.IconTheme.get_default().changed.connect(() => {
if (this.visible) load_icons();
else need_reload = true;
});
}
+ // make the icon_view filterable
this.icon_list_filtered = new Gtk.TreeModelFilter(this.icon_list, null);
var container = new Gtk.VBox(false, 12);
@@ -111,9 +187,11 @@ public class IconSelectWindow : Gtk.Dialog {
// tab container
this.tabs = new Gtk.Notebook();
+ // icon theme tab
var theme_tab = new Gtk.VBox(false, 12);
theme_tab.set_border_width(12);
+ // type chooser combo-box
var context_combo = new Gtk.ComboBox.text();
context_combo.append_text(_("All icons"));
context_combo.append_text(_("Applications"));
@@ -130,13 +208,16 @@ public class IconSelectWindow : Gtk.Dialog {
});
theme_tab.pack_start(context_combo, false, false);
-
+
+ // string filter entry
var filter = new Gtk.Entry();
filter.primary_icon_stock = Gtk.Stock.FIND;
filter.primary_icon_activatable = false;
filter.secondary_icon_stock = Gtk.Stock.CLEAR;
theme_tab.pack_start(filter, false, false);
+ // only display items which have the selected type
+ // and whose name contains the text entered in the entry
this.icon_list_filtered.set_visible_func((model, iter) => {
string name = "";
IconContext context = IconContext.ALL;
@@ -150,33 +231,39 @@ public class IconSelectWindow : Gtk.Dialog {
name.down().contains(filter.text.down());
});
+ // clear when the users clicks on the "clear" icon
filter.icon_release.connect((pos, event) => {
if (pos == Gtk.EntryIconPosition.SECONDARY)
filter.text = "";
});
+ // refilter on input
filter.notify["text"].connect(() => {
this.icon_list_filtered.refilter();
});
+ // container for the icon_view
var scroll = new Gtk.ScrolledWindow (null, null);
scroll.set_policy (Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
scroll.set_shadow_type (Gtk.ShadowType.IN);
+ // displays the filtered icons
this.icon_view = new Gtk.IconView.with_model(this.icon_list_filtered);
this.icon_view.item_width = 32;
this.icon_view.item_padding = 3;
this.icon_view.pixbuf_column = 2;
this.icon_view.tooltip_column = 0;
+ // set _active_icon if selection changes
this.icon_view.selection_changed.connect(() => {
foreach (var path in this.icon_view.get_selected_items()) {
Gtk.TreeIter iter;
this.icon_list_filtered.get_iter(out iter, path);
- icon_list_filtered.get(iter, 0, out this._active_icon);
+ this.icon_list_filtered.get(iter, 0, out this._active_icon);
}
});
+ // hide this window when the user activates an icon
this.icon_view.item_activated.connect((path) => {
Gtk.TreeIter iter;
this.icon_list_filtered.get_iter(out iter, path);
@@ -191,20 +278,27 @@ public class IconSelectWindow : Gtk.Dialog {
tabs.append_page(theme_tab, new Gtk.Label(_("Icon Theme")));
+ // tab containing the possibility to choose a custom icon
var custom_tab = new Gtk.VBox(false, 6);
custom_tab.border_width = 12;
+ // file chooser widget
this.file_chooser = new Gtk.FileChooserWidget(Gtk.FileChooserAction.OPEN);
var file_filter = new Gtk.FileFilter();
file_filter.add_pixbuf_formats();
file_filter.set_name(_("All supported image formats"));
file_chooser.add_filter(file_filter);
+ // set _active_icon if the user selected a file
file_chooser.selection_changed.connect(() => {
- if (file_chooser.get_filename() != null && GLib.FileUtils.test(file_chooser.get_filename(), GLib.FileTest.IS_REGULAR))
+ if (file_chooser.get_filename() != null &&
+ GLib.FileUtils.test(file_chooser.get_filename(),
+ GLib.FileTest.IS_REGULAR))
+
this._active_icon = file_chooser.get_filename();
});
+ // hide this window when the user activates a file
file_chooser.file_activated.connect(() => {
this._active_icon = file_chooser.get_filename();
this.on_select(this._active_icon);
@@ -218,7 +312,9 @@ public class IconSelectWindow : Gtk.Dialog {
container.pack_start(tabs, true, true);
- // button box
+ // button box --- this dialog has a custom button box at the bottom because it
+ // should have a spinner there. Sadly that's impossible with the "normal"
+ // action_area of Gtk.Dialog's
var bottom_box = new Gtk.HBox(false, 0);
var bbox = new Gtk.HButtonBox();
@@ -255,8 +351,16 @@ public class IconSelectWindow : Gtk.Dialog {
this.set_focus(this.icon_view);
}
+ /////////////////////////////////////////////////////////////////////
+ /// Hide the "normal" action_area when this window is shown. Reload
+ /// all icons if necessary.
+ /////////////////////////////////////////////////////////////////////
+
public override void show() {
base.show();
+
+ // hide the "normal" action_area --- this Dialog has a custom set of
+ // buttons containg the spinner
this.action_area.hide();
if (this.need_reload) {
@@ -265,23 +369,32 @@ public class IconSelectWindow : Gtk.Dialog {
}
}
+ /////////////////////////////////////////////////////////////////////
+ /// (Re)load all icons.
+ /////////////////////////////////////////////////////////////////////
+
private void load_icons() {
+ // only if it's not loading currently
if (!this.loading) {
this.loading = true;
this.icon_list.clear();
+ // display the spinner
if (spinner != null)
this.spinner.visible = true;
+ // disable sorting of the icon_view - else it's horribly slow
this.icon_list.set_sort_column_id(-1, Gtk.SortType.ASCENDING);
try {
+ // start loading in another thread
unowned Thread loader = Thread.create<void*>(load_thread, false);
loader.set_priority(ThreadPriority.LOW);
} catch (GLib.ThreadError e) {
error("Failed to create icon loader thread!");
}
+ // insert loaded icons every 200 ms
Timeout.add(200, () => {
while (this.load_queue.length() > 0) {
var new_entry = this.load_queue.pop();
@@ -292,6 +405,7 @@ public class IconSelectWindow : Gtk.Dialog {
2, new_entry.pixbuf);
}
+ // enable sorting of the icon_view if loading finished
if (!this.loading) this.icon_list.set_sort_column_id(0, Gtk.SortType.ASCENDING);
return loading;
@@ -299,6 +413,11 @@ public class IconSelectWindow : Gtk.Dialog {
}
}
+ /////////////////////////////////////////////////////////////////////
+ /// Loads all icons of an icon theme and pushes them into the
+ /// load_queue.
+ /////////////////////////////////////////////////////////////////////
+
private void* load_thread() {
var icon_theme = Gtk.IconTheme.get_default();
@@ -321,6 +440,7 @@ public class IconSelectWindow : Gtk.Dialog {
}
try {
+ // create a new entry for the queue
var new_entry = new ListEntry();
new_entry.name = icon;
new_entry.context = icon_context;
@@ -337,8 +457,10 @@ public class IconSelectWindow : Gtk.Dialog {
}
}
+ // finished loading
this.loading = false;
+ // hide the spinner
if (spinner != null)
spinner.visible = this.loading;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-22 22:20:01 +0000