1 files changed, 65 insertions, 0 deletions
diff --git a/timer-applet/src/timerapplet/ui/ScrollableButtonList.py b/timer-applet/src/timerapplet/ui/ScrollableButtonList.py
new file mode 100644
index 00000000..2f8bb378
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/ScrollableButtonList.py
@@ -0,0 +1,65 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# 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 2 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gtk
+
+def get_scroll_value_to_reveal_widget(widget_rect, viewport_rect, scroll_val):
+    if widget_rect.y < scroll_val:
+        scroll_val = widget_rect.y
+    elif widget_rect.y + widget_rect.height + 1 > scroll_val + viewport_rect.height:
+        scroll_val = widget_rect.y + widget_rect.height + 1 - viewport_rect.height    
+    return scroll_val
+
+class ScrollableButtonList(gtk.ScrolledWindow):
+    def __init__(self):
+        gtk.ScrolledWindow.__init__(self)
+        
+        self._vadjust = gtk.Adjustment()
+        self._vbox = gtk.VBox()
+        self._viewport = gtk.Viewport()
+        
+        self.set_vadjustment(self._vadjust)
+        self.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
+        self._viewport.modify_bg(gtk.STATE_NORMAL, self.style.base[gtk.STATE_NORMAL])
+        
+        self._viewport.add(self._vbox)
+        self.add(self._viewport)
+        
+        self._vbox.show()
+        self._viewport.show()
+        
+    def add_button(self, button):
+        button.connect('focus-in-event', self._on_focus)
+        button.connect('clicked', self._on_clicked)
+        self._vbox.pack_start(button, False, False)
+        
+    def get_buttons(self):
+        return self._vbox.get_children()
+        
+    def _on_focus(self, widget, event):
+        self._scroll_to_widget(widget)
+        
+    def _on_clicked(self, widget):
+        self._scroll_to_widget(widget)
+        
+    def _scroll_to_widget(self, widget):
+        cur_val = self._vadjust.get_value()
+        new_val = get_scroll_value_to_reveal_widget(widget.allocation, self._viewport.allocation, cur_val)
+        
+        if new_val != cur_val:
+            self._vadjust.set_value(new_val)
+            self._vadjust.value_changed()
+