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Diffstat (limited to 'src/images/themedIcon.vala')
-rw-r--r-- | src/images/themedIcon.vala | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/images/themedIcon.vala b/src/images/themedIcon.vala new file mode 100644 index 0000000..9f4ca8a --- /dev/null +++ b/src/images/themedIcon.vala @@ -0,0 +1,130 @@ +///////////////////////////////////////////////////////////////////////// +// Copyright (c) 2011-2015 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 { + + ///////////////////////////////////////////////////////////////////// + /// Paint a slice icon according to the current theme. + ///////////////////////////////////////////////////////////////////// + + public ThemedIcon(string caption, string icon_name, bool active) { + + // 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 = 1; + foreach (var layer in layers) { + if (layer.image != null && 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.image != null && layer.layer_type == SliceLayer.Type.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.visibility == SliceLayer.Visibility.ANY || + (Config.global.show_captions == (layer.visibility == SliceLayer.Visibility.WITH_CAPTION))) { + + if (layer.colorize) { + ctx.push_group(); + } + + if (layer.layer_type == SliceLayer.Type.ICON) { + ctx.push_group(); + + ctx.translate(layer.x, layer.y); + 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.translate(-layer.x, -layer.y); + + ctx.pop_group_to_source(); + ctx.paint(); + ctx.set_operator(Cairo.Operator.OVER); + + } else if (layer.layer_type == SliceLayer.Type.CAPTION) { + Image text = new RenderedText(caption, layer.width, layer.height, layer.font, layer.color, Config.global.global_scale); + ctx.translate(layer.x, layer.y); + text.paint_on(ctx); + ctx.translate(-layer.x, -layer.y); + } else if (layer.layer_type == SliceLayer.Type.FILE) { + ctx.translate(layer.x, layer.y); + layer.image.paint_on(ctx); + ctx.translate(-layer.x, -layer.y); + } + + // 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(); + } + } + } + } + + ///////////////////////////////////////////////////////////////////// + /// Returns the size of the icon in pixels. Greetings to Liskov. + ///////////////////////////////////////////////////////////////////// + + public int size() { + return base.width(); + } +} + +} |