1 files changed, 132 insertions, 0 deletions
diff --git a/src/gui/cellRendererIcon.vala b/src/gui/cellRendererIcon.vala
new file mode 100644
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+++ b/src/gui/cellRendererIcon.vala
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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);
+    }
+}
+
+}
+