Arrow.py

   1 from rox import g
   2 import gobject
   3
   4 refleak_bug_workaround = []
   5
   6 class Arrow(g.EventBox):
   7         def __init__(self, arrow_type, callback, data, time = 50):
   8                 g.EventBox.__init__(self)
   9                 self.add_events(g.gdk.BUTTON_PRESS_MASK)
  10
  11                 self.data = data
  12                 self.callback = callback
  13                 self.arrow_type = arrow_type
  14                 self.time = time
  15
  16                 self.arrow = g.Arrow(arrow_type, g.SHADOW_OUT)
  17
  18                 self.add(self.arrow)
  19                 self.button = 0
  20
  21                 self.connect('button-press-event', self.button_press)
  22                 self.connect('button-release-event', self.button_release)
  23
  24                 self.connect('enter-notify-event',
  25                         lambda w, e: self.set_state(g.STATE_PRELIGHT))
  26                 self.connect('leave-notify-event',
  27                         lambda w, e: self.set_state(g.STATE_NORMAL))
  28
  29                 self.connect('destroy', lambda w: refleak_bug_workaround.remove(self))
  30                 refleak_bug_workaround.append(self)
  31
  32         def button_press(self, box, event):
  33                 if self.button != 0 or event.type != g.gdk.BUTTON_PRESS:
  34                         return
  35                 self.button = event.button
  36                 #g.grab_add(self)
  37                 self.arrow.set(self.arrow_type, g.SHADOW_IN)
  38                 self.cb = gobject.timeout_add(self.time * 2 + 300, self.incr)
  39                 self.incr(resched = 0)
  40
  41         def button_release(self, box, event):
  42                 if self.button != event.button:
  43                         return
  44                 self.button = 0
  45                 #g.grab_remove(self)
  46                 self.arrow.set(self.arrow_type, g.SHADOW_OUT)
  47                 gobject.source_remove(self.cb)
  48
  49         def incr(self, resched = 1):
  50                 if resched:
  51                         gobject.source_remove(self.cb)
  52                         self.cb = gobject.timeout_add(self.time, self.incr)
  53                 self.callback(self.data)
  54                 return 0