def on_update_lines(self, sender, key, updateinfo):
# since we have group properties, we need to redraw the whole
# thing and can't just redraw all added or removed lines...
backend = self.get_backend()
layer = self.obj
try:
backend.block_redraw()
# remove obsolete line painters / mpl line objects
if updateinfo.has_key('removed'):
for line in updateinfo['removed'][2]:
_id = id(line)
if self.painters.has_key(_id):
logger.debug("Removing obsolete LinePainter")
p = self.painters.pop(_id)
# remove obsolete mpl line from line cache
if self.line_cache.has_key(line):
obj = self.line_cache.pop(line)
if obj in self.axes.lines:
self.axes.lines.remove(obj)
for line in layer.lines:
painter = self.get_painter(line, LinePainter)
painter.paint()
finally:
backend.unblock_redraw()
backend.queue_redraw()
def update(self, sender, keys):
backend = self.get_backend()
try:
backend.block_redraw()
self.paint(keys=keys)
finally:
backend.unblock_redraw()
backend.queue_redraw()
def update(self, sender, keys):
backend = self.get_backend()
try:
backend.block_redraw()
# plot_painter := backend
layer, plot_painter = self.obj, self.parent
axes = self.axes
# title
if 'title' in keys:
title = layer.title
axes.set_title(title or '') # matplotlib doesn't like None as title
# grid
if 'grid' in keys:
axes.grid(layer.grid)
# lines -- these should be updated by update::lines !!!
for line in layer.lines:
painter = self.get_painter(line, LinePainter)
painter.paint()
# axes
# This needs to be after lines, because painting the
# lines would reset the start and end.
# if 'xaxis' in keys or 'yaxis' in keys:
self.update_axis(None, [])
# legend
# Since the legend labels are constructed from the matplotlib
# line objects, it is necessary to construct the legend after
# the lines are plotted
if 'legend' in keys:
legend = layer.legend
if legend is None:
# remove any existing legend painter if obsolete
pass
else:
p = self.get_painter(legend, LegendPainter)
p.paint()
finally:
backend.unblock_redraw()
backend.queue_redraw()
