def canvas_menu(self):
if self._drag_mode == 2:
p = self.get_path()
if self._drag_hit == -1:
m = [("Add node", self.onAddNode, None), ]
if self._hit_seg_i != -1:
segpath = cbook.BezierSplit(self.get_path())
if len(segpath[self._hit_seg_i]) == 2:
m = m + \
[("Convert to curve", self.onConvCurve, None), ]
else:
m = m + [("Convert to Line", self.onConvLine, None), ]
return m
else:
if cbook.BezierNodeType(p, self._drag_hit) == 1:
return [("Remove Node", self.onRmNode, None),
("Convert to symmetric node", self.onMakeSym, None)]
if cbook.BezierNodeType(p, self._drag_hit) == 2:
if p[self._drag_hit][2] == 1: # smooth node
return [("Remove node", self.onRmNode, None),
("Convert to coner node", self.onMakeCorner, None),
("Convert to asymmetric node", self.onMakeAsym, None)]
elif p[self._drag_hit][2] == 2: # coner node
return [("Remove Node", self.onRmNode, None),
("Convert to symmetric node", self.onMakeSym, None)]
elif p[self._drag_hit][2] == 3: # asymmetricr node
return [("Remove Node", self.onRmNode, None),
("Convert to symmetric node", self.onMakeSym, None)]
return []
def onConvLine(self, evt):
segpath = cbook.BezierSplit(self.get_path())
p = segpath[self._hit_seg_i]
segpath[self._hit_seg_i] = [p[0], (mpath.Path.LINETO, p[-1][1], 0)]
path = cbook.BezierJoin(segpath)
window = evt.GetEventObject().GetTopLevelParent()
hist = GlobalHistory().get_history(window)
# hist = self.get_root_parent().app.history
hist.start_record()
hist.add_history(
UndoRedoFigobjMethod(self._artists[0], 'pathdata', path))
hist.stop_record()
def onConvCurve(self, evt):
segpath = cbook.BezierSplit(self.get_path())
p = segpath[self._hit_seg_i]
x0, y0 = p[0][1]
x1, y1 = p[-1][1]
segpath[self._hit_seg_i] = [p[0],
(mpath.Path.CURVE4,
(x0*0.7+x1*0.3, y0*0.7+y1*0.3), p[0][2]),
(mpath.Path.CURVE4,
(x0*0.3+x1*0.7, y0*0.3+y1*0.7), 2),
(mpath.Path.CURVE4, p[-1][1], 2)]
path = cbook.BezierJoin(segpath)
window = evt.GetEventObject().GetTopLevelParent()
hist = GlobalHistory().get_history(window)
hist.start_record()
hist.add_history(UndoRedoFigobjMethod(self._artists[0],
'pathdata', path))
hist.stop_record()