diff options
author | Alessandro Ghedini <al3xbio@gmail.com> | 2011-11-20 15:50:38 +0100 |
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committer | Alessandro Ghedini <al3xbio@gmail.com> | 2011-11-20 15:51:50 +0100 |
commit | 3997b71e281a5f43cc8c1892e85de30728df7b2d (patch) | |
tree | 96f2be7c48af03b7c540eba9dd6680eb270f23b8 /src/utilities/themedIcon.vala | |
parent | 902829c62f552f35517783570025b479745de3c5 (diff) |
Imported Upstream version 0.3.1
Diffstat (limited to 'src/utilities/themedIcon.vala')
-rw-r--r-- | src/utilities/themedIcon.vala | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/src/utilities/themedIcon.vala b/src/utilities/themedIcon.vala deleted file mode 100644 index 29ae380..0000000 --- a/src/utilities/themedIcon.vala +++ /dev/null @@ -1,161 +0,0 @@ -/* -Copyright (c) 2011 by Simon Schneegans - -This program is free software: you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the Free -Software Foundation, either version 3 of the License, or (at your option) -any later version. - -This program is distributed in the hope that it will be useful, but WITHOUT -ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -more details. - -You should have received a copy of the GNU General Public License along with -this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -namespace GnomePie { - -///////////////////////////////////////////////////////////////////////// -/// A class representing a square-shaped icon, themed according to the -/// current theme of Gnome-Pie. -///////////////////////////////////////////////////////////////////////// - -public class ThemedIcon : Image { - - ///////////////////////////////////////////////////////////////////// - /// A cache which stores loaded icon. The key is the icon name. When - /// the users icon theme or the theme of Gnome-Pie changes, these - /// cahces are cleared. - ///////////////////////////////////////////////////////////////////// - - private static Gee.HashMap<string, Cairo.ImageSurface?> active_cache { private get; private set; } - private static Gee.HashMap<string, Cairo.ImageSurface?> inactive_cache { private get; private set; } - - ///////////////////////////////////////////////////////////////////// - /// Initializes the caches. - ///////////////////////////////////////////////////////////////////// - - public static void init() { - clear_cache(); - - Config.global.notify["theme"].connect(() => { - clear_cache(); - }); - - Gtk.IconTheme.get_default().changed.connect(() => { - clear_cache(); - }); - } - - ///////////////////////////////////////////////////////////////////// - /// Clears the cache. - ///////////////////////////////////////////////////////////////////// - - public static void clear_cache() { - active_cache = new Gee.HashMap<string, Cairo.ImageSurface?>(); - inactive_cache = new Gee.HashMap<string, Cairo.ImageSurface?>(); - } - - ///////////////////////////////////////////////////////////////////// - /// Paint a slice icon according to the current theme. - ///////////////////////////////////////////////////////////////////// - - public ThemedIcon(string icon_name, bool active) { - // check cache - var current_cache = active ? active_cache : inactive_cache; - var cached = current_cache.get(icon_name); - - if (cached != null) { - this.surface = cached; - return; - } - - // get layers for the desired slice type - var layers = active ? Config.global.theme.active_slice_layers : Config.global.theme.inactive_slice_layers; - - // get max size - int size = 0; - foreach (var layer in layers) { - if (layer.image.width() > size) size = layer.image.width(); - } - - this.surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, size, size); - - // get size of icon layer - int icon_size = size; - foreach (var layer in layers) { - if (layer.is_icon) icon_size = layer.image.width(); - } - - Image icon; - if (icon_name.contains("/")) - icon = new Image.from_file_at_size(icon_name, icon_size, icon_size); - else - icon = new Icon(icon_name, icon_size); - - var color = new Color.from_icon(icon); - var ctx = this.context(); - - ctx.translate(size/2, size/2); - ctx.set_operator(Cairo.Operator.OVER); - - // now render all layers on top of each other - foreach (var layer in layers) { - - if (layer.colorize) { - ctx.push_group(); - } - - if (layer.is_icon) { - - ctx.push_group(); - - layer.image.paint_on(ctx); - - ctx.set_operator(Cairo.Operator.IN); - - if (layer.image.width() != icon_size) { - if (icon_name.contains("/")) - icon = new Image.from_file_at_size(icon_name, layer.image.width(), layer.image.width()); - else - icon = new Icon(icon_name,layer.image.width()); - } - - icon.paint_on(ctx); - - ctx.pop_group_to_source(); - ctx.paint(); - ctx.set_operator(Cairo.Operator.OVER); - - } else { - layer.image.paint_on(ctx); - } - - // colorize the whole layer if neccasary - if (layer.colorize) { - ctx.set_operator(Cairo.Operator.ATOP); - ctx.set_source_rgb(color.r, color.g, color.b); - ctx.paint(); - - ctx.set_operator(Cairo.Operator.OVER); - ctx.pop_group_to_source(); - ctx.paint(); - } - } - - // store the surface in cache - current_cache.set(icon_name, this.surface); - } - - ///////////////////////////////////////////////////////////////////// - /// Returns the size of the icon in pixels. Greetings to Liskov. - ///////////////////////////////////////////////////////////////////// - - public int size() { - return base.width(); - } -} - -} |