1 files changed, 69 insertions, 0 deletions
diff --git a/timer-applet/src/timerapplet/ui/PulseButton.py b/timer-applet/src/timerapplet/ui/PulseButton.py
new file mode 100644
index 00000000..8a9fe48c
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/PulseButton.py
@@ -0,0 +1,69 @@
+# 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 math
+import time
+import gobject
+import gtk
+
+class PulseButton(gtk.Button):
+ def __init__(self):
+ super(PulseButton, self).__init__()
+ 
+ self._anim_period_seconds = 0.7
+ self._start_time = 0.0
+ self._factor = 0.0
+ 
+ def start_pulsing(self):
+ self._start_time = time.time()
+ gobject.timeout_add(10, self._on_timeout)
+ 
+ def stop_pulsing(self):
+ self._start_time = 0
+ 
+ def _on_timeout(self, data=None):
+ if self._start_time <= 0.0:
+ return False
+ if self.window != None:
+ delta = time.time() - self._start_time
+ 
+ if delta > self._anim_period_seconds:
+ delta = self._anim_period_seconds
+ self._start_time = time.time()
+ fraction = delta/self._anim_period_seconds
+ self._factor = math.sin(fraction * math.pi)
+ 
+ self.window.invalidate_rect(self.allocation, True)
+ return True
+ 
+ def do_expose_event(self, event):
+ gtk.Button.do_expose_event(self, event)
+ if self._start_time > 0:
+ context = event.window.cairo_create()
+ context.rectangle(0, 0, self.allocation.width, self.allocation.height)
+ 
+ #color = self.style.bg[gtk.STATE_SELECTED]
+ #color = gtk.gdk.Color(65535, 65535, 65535)
+ color = gtk.gdk.Color(0, 0, 0)
+ red = color.red / 65535.0
+ green = color.green / 65535.0
+ blue = color.blue / 65535.0
+ context.set_source_rgba(red, green, blue, self._factor * 0.8)
+ context.fill()
+ 
+ return False
+
+gobject.type_register(PulseButton)