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timeline: only redraw required areas when updating position rectangle

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René Stadler 2012-09-22 01:27:37 +02:00 committed by Stefan Sauer
parent bf28e9464e
commit 985ef29bb3
1 changed files with 28 additions and 11 deletions
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39
debug-viewer/GstDebugViewer/Plugins/Timeline.py
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@ -552,15 +552,23 @@ class TimelineWidget (gtk.DrawingArea):
def update_position (self, start_ts, end_ts):
self.__position_ts_range = (start_ts, end_ts,)
if not self.process.freq_sentinel:
return
if not self.process.freq_sentinel.data:
return
self.queue_draw ()
x, y, width, height = self.get_allocation ()
# Queue old position rectangle for redraw:
if self.__position_ts_range is not None:
start, stop = self.ts_range_to_position (*self.__position_ts_range)
self.queue_draw_area (start - 1, 0, stop - start + 2, height)
# And the new one:
start, stop = self.ts_range_to_position (start_ts, end_ts)
self.queue_draw_area (start - 1, 0, stop - start + 2, height)
self.__position_ts_range = (start_ts, end_ts,)
def find_indicative_time_step (self):
@ -700,19 +708,28 @@ class TimelineWidget (gtk.DrawingArea):
else:
return False
def ts_range_to_position (self, start_ts, end_ts):
if not self.__have_position ():
return (0, 0)
first_ts, last_ts = self.process.freq_sentinel.ts_range
step = self.process.freq_sentinel.step
if step == 0:
return (0, 0)
position1 = int (float (start_ts - first_ts) / step)
position2 = int (float (end_ts - first_ts) / step)
return (position1, position2)
def __draw_position (self, drawable, clip = None):
if not self.__have_position ():
return
start_ts, end_ts = self.__position_ts_range
first_ts, last_ts = self.process.freq_sentinel.ts_range
step = self.process.freq_sentinel.step
if step == 0:
return
position1 = int (float (start_ts - first_ts) / step)
position2 = int (float (end_ts - first_ts) / step)
position1, position2 = self.ts_range_to_position (start_ts, end_ts)
if clip:
clip_x, clip_y, clip_w, clip_h = clip
@ -743,7 +760,7 @@ class TimelineWidget (gtk.DrawingArea):
if self.__offscreen is None:
self.__update_offscreen ()
self.__draw_from_offscreen ()
self.__draw_from_offscreen (event.area)
return True