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/////////////////////////////////////////////////////////////////////////
// Copyright (c) 2011-2016 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();
}
}
}
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