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/*
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 cellrenderer which displays an Icon. When clicked onto, a window
/// opens for selecting another icon. This needs to be a subclass of
/// Gtk.CellRendererText because Gtk.CellRendererPixbuf can't receive
/// click events. Internally it stores a Gtk.CellRendererPixbuf
/// which renders and stuff.
/////////////////////////////////////////////////////////////////////////
public class CellRendererIcon : Gtk.CellRendererText {
/////////////////////////////////////////////////////////////////////
/// This signal is emitted when the user selects another icon.
/////////////////////////////////////////////////////////////////////
public signal void on_select(string path, string icon);
/////////////////////////////////////////////////////////////////////
/// The IconSelectWindow which is shown on click.
/////////////////////////////////////////////////////////////////////
private IconSelectWindow select_window = null;
/////////////////////////////////////////////////////////////////////
/// The internal Renderer used for drawing.
/////////////////////////////////////////////////////////////////////
private Gtk.CellRendererPixbuf renderer = null;
/////////////////////////////////////////////////////////////////////
/// A helper variable, needed to emit the current path.
/////////////////////////////////////////////////////////////////////
private string current_path = "";
public string icon_name { get; set; }
/////////////////////////////////////////////////////////////////////
/// Forward some parts of the CellRendererPixbuf's interface.
/////////////////////////////////////////////////////////////////////
public bool follow_state {
get { return renderer.follow_state; }
set { renderer.follow_state = value; }
}
public bool icon_sensitive {
get { return renderer.sensitive; }
set { renderer.sensitive = value; }
}
public Gdk.Pixbuf pixbuf {
owned get { return renderer.pixbuf; }
set { renderer.pixbuf = value; }
}
/////////////////////////////////////////////////////////////////////
/// C'tor, creates a new CellRendererIcon.
/////////////////////////////////////////////////////////////////////
public CellRendererIcon() {
this.select_window = new IconSelectWindow();
this.renderer = new Gtk.CellRendererPixbuf();
this.select_window.on_select.connect((icon) => {
this.on_select(current_path, icon);
});
}
/////////////////////////////////////////////////////////////////////
/// Forward some parts of the CellRendererPixbuf's interface.
/////////////////////////////////////////////////////////////////////
public override void get_size (Gtk.Widget widget, Gdk.Rectangle? cell_area,
out int x_offset, out int y_offset,
out int width, out int height) {
this.renderer.get_size(widget, cell_area, out x_offset, out y_offset, out width, out height);
}
/////////////////////////////////////////////////////////////////////
/// Forward some parts of the CellRendererPixbuf's interface.
/////////////////////////////////////////////////////////////////////
public override void render (Gdk.Window window, Gtk.Widget widget,
Gdk.Rectangle bg_area,
Gdk.Rectangle cell_area,
Gdk.Rectangle expose_area,
Gtk.CellRendererState flags) {
this.renderer.render(window, widget, bg_area, cell_area, expose_area, flags);
}
/////////////////////////////////////////////////////////////////////
/// Open the IconSelectWindow on click.
/////////////////////////////////////////////////////////////////////
public override unowned Gtk.CellEditable start_editing(
Gdk.Event event, Gtk.Widget widget, string path, Gdk.Rectangle bg_area,
Gdk.Rectangle cell_area, Gtk.CellRendererState flags) {
this.select_window.set_transient_for((Gtk.Window)widget.get_toplevel());
this.select_window.set_modal(true);
this.current_path = path;
this.select_window.show();
this.select_window.active_icon = this.icon_name;
return this.renderer.start_editing(event, widget, path, bg_area, cell_area, flags);
}
}
}
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