def _draw_handles(self, cornerPoints):
"""
Draw the handles that permit the geometry resizing.
Example: For a plane, there will be 8 small squares along the border...
4 at plane corners and remaining in the middle of each side
of the plane. The handles will be displayed only when the
geometry is selected.
@param cornerPoints: List of 4 corner points(V). The handles will be
drawn at these corners PLUS in the middle of
each side of the Plane.
@type cornerPoints: list of 4 L{V}
"""
handleCenters = list(cornerPoints)
cornerHandleCenters = list(cornerPoints)
midBtm = (handleCenters[0] + handleCenters[1]) * 0.5
midRt = (handleCenters[1] + handleCenters[2]) * 0.5
midTop = (handleCenters[2] + handleCenters[3]) * 0.5
midLft = (handleCenters[3] + handleCenters[0]) * 0.5
for midpt in [midBtm, midRt, midTop, midLft]:
handleCenters.append(midpt)
if len(self.handles) == 8:
assert len(self.handles) == len(handleCenters)
i = 0
for i in range(len(self.handles)):
self.handles[i].draw(hCenter=handleCenters[i])
else:
hdlIndex = 0
for hCenter in handleCenters:
handle = ResizeHandle(self, self.glpane, hCenter)
handle.draw()
if handle not in self.handles:
self.handles.append(handle)
#handleIndex = 0, 1, 2, 3 -->
#--> bottomLeft, bottomRight, topRight, topLeft corners respt
#handleIndex = 4, 5, 6, 7 -->
#-->midBottom, midRight, midTop, midLeft Handles respt.
if hdlIndex == 5 or hdlIndex == 7:
handle.setType('Width-Handle')
elif hdlIndex == 4 or hdlIndex == 6:
handle.setType('Height-Handle')
else:
handle.setType('Corner')
hdlIndex += 1
def _draw_handles(self, controlPoints):
handleCenters = list(controlPoints)
if len(self.handles) > 0:
assert len(self.handles) == len(controlPoints)
i = 0
for i in range(len(self.handles)):
self.handles[i].draw(hCenter = handleCenters[i])
else:
for hCenter in handleCenters:
handle = ResizeHandle(self, self.glpane, hCenter)
handle.draw()
handle.setType('')
if handle not in self.handles:
self.handles.append(handle)