diff options
Diffstat (limited to 'GstDebugViewer')
| -rw-r--r-- | GstDebugViewer/Plugins/Timeline.py | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/GstDebugViewer/Plugins/Timeline.py b/GstDebugViewer/Plugins/Timeline.py index 9e9ab49..97dab15 100644 --- a/GstDebugViewer/Plugins/Timeline.py +++ b/GstDebugViewer/Plugins/Timeline.py @@ -405,7 +405,7 @@ class TimelineWidget (gtk.DrawingArea): self.__draw (self.__offscreen) self.__update_from_offscreen () - def __update_from_offscreen (self): + def __update_from_offscreen (self, rect = None): if not self.props.visible: return @@ -414,9 +414,13 @@ class TimelineWidget (gtk.DrawingArea): self.__redraw () gc = gtk.gdk.GC (self.window) - # FIXME: Accept a subregion here to speed up partial expose. - self.window.draw_drawable (gc, self.__offscreen, 0, 0, 0, 0, -1, -1) - self.__draw_position (self.window) + if rect is None: + self.window.draw_drawable (gc, self.__offscreen, 0, 0, 0, 0, -1, -1) + self.__draw_position (self.window) + else: + x, y, w, h = rect + self.window.draw_drawable (gc, self.__offscreen, x, y, x, y, w, h) + self.__draw_position (self.window, clip = rect) def update (self, model): @@ -569,7 +573,7 @@ class TimelineWidget (gtk.DrawingArea): else: return False - def __draw_position (self, drawable): + def __draw_position (self, drawable, clip = None): if not self.__have_position (): return @@ -583,9 +587,18 @@ class TimelineWidget (gtk.DrawingArea): position1 = int (float (start_ts - first_ts) / step) position2 = int (float (end_ts - first_ts) / step) + if clip: + clip_x, clip_y, clip_w, clip_h = clip + if clip_x + clip_w < position1 - 1 or clip_x > position2 + 1: + return + ctx = drawable.cairo_create () x, y, w, h = self.get_allocation () + if clip: + ctx.rectangle (*clip) + ctx.clip () + line_width = position2 - position1 if line_width <= 1: ctx.set_source_rgb (1., 0., 0.) @@ -601,7 +614,7 @@ class TimelineWidget (gtk.DrawingArea): def __handle_expose_event (self, self_, event): if self.__offscreen: - self.__update_from_offscreen () + self.__update_from_offscreen (event.area) else: self.__redraw () return True |