[pygobject] [gi-demos] add icon view edit and drag-and-drop demo

[John Palmieri <johnp src gnome org>]

commit b458f6f3424a04f6ceece09d443009372d70544c
Author: John (J5) Palmieri <johnp redhat com>
Date:   Sat Feb 19 19:42:41 2011 -0500

    [gi-demos] add icon view edit and drag-and-drop demo

 demos/gtk-demo/demos/Icon View/iconviewedit.py |  101 ++++++++++++++++++++++++
 1 files changed, 101 insertions(+), 0 deletions(-)
---
diff --git a/demos/gtk-demo/demos/Icon View/__init__.py b/demos/gtk-demo/demos/Icon View/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/demos/gtk-demo/demos/Icon View/iconviewedit.py b/demos/gtk-demo/demos/Icon View/iconviewedit.py
new file mode 100644
index 0000000..9233b09
--- /dev/null
+++ b/demos/gtk-demo/demos/Icon View/iconviewedit.py	
@@ -0,0 +1,101 @@
+#!/usr/bin/env python
+# -*- Mode: Python; py-indent-offset: 4 -*-
+# vim: tabstop=4 shiftwidth=4 expandtab
+#
+# Copyright (C) 2010 Red Hat, Inc., John (J5) Palmieri <johnp redhat com>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
+# USA
+
+title = "Editing and Drag-and-Drop"
+description = """
+The GtkIconView widget supports Editing and Drag-and-Drop. This example also demonstrates using the generic GtkCellLayout interface to set up cell renderers in an icon view.
+"""
+
+from gi.repository import Gtk, Gdk, GdkPixbuf
+
+class IconviewEditApp:
+    COL_TEXT = 0
+    NUM_COLS = 1
+
+    def __init__(self):
+        self.window = Gtk.Window()
+        self.window.set_title('Editing and Drag-and-Drop')
+        self.window.set_border_width(8)
+        self.window.connect('destroy', Gtk.main_quit)
+
+        store = Gtk.ListStore(str)
+        colors = ['Red', 'Green', 'Blue', 'Yellow']
+        store.clear()
+        for c in colors:
+            store.append([c])
+
+        icon_view = Gtk.IconView(model=store)
+        icon_view.set_selection_mode(Gtk.SelectionMode.SINGLE)
+        icon_view.set_item_orientation(Gtk.Orientation.HORIZONTAL)
+        icon_view.set_columns(2)
+        icon_view.set_reorderable(True)
+
+        renderer = Gtk.CellRendererPixbuf()
+        icon_view.pack_start(renderer, True)
+        icon_view.set_cell_data_func(renderer,
+					                 self.set_cell_color,
+					                 None)
+
+        renderer = Gtk.CellRendererText()
+        icon_view.pack_start(renderer, True)
+        renderer.props.editable = True
+        renderer.connect('edited', self.edited, icon_view)
+        icon_view.add_attribute(renderer, 'text', self.COL_TEXT)
+        
+        self.window.add(icon_view)
+
+        self.window.show_all()
+
+    def set_cell_color (self, 
+                        cell_layout,
+	                    cell,
+		                tree_model,
+	                    iter_,
+	                    icon_view):
+
+         # FIXME return single element instead of tuple
+         text = tree_model.get(iter_, self.COL_TEXT)[0]
+         color = Gdk.color_parse(text)[1]
+         pixel = 0
+         if color is not None:
+             pixel = \
+               (color.red   >> 8) << 24 | \
+               (color.green >> 8) << 16 | \
+               (color.blue  >> 8) << 8
+
+         pixbuf = GdkPixbuf.Pixbuf.new(GdkPixbuf.Colorspace.RGB, False, 8, 24, 24)
+         pixbuf.fill(pixel)
+
+         cell.props.pixbuf = pixbuf
+
+    def edited (self, cell, path_string, text, icon_view):
+        model = icon_view.get_model()
+        path = Gtk.TreePath(path_string)
+
+        iter_ = model.get_iter(path)
+        model.set_row(iter_, [text])
+
+def main(demoapp=None):
+    app = IconviewEditApp()
+    Gtk.main()
+
+if __name__ == '__main__':
+    main()