def followMarquee (self, event):
"""Follows the mouse during a marquee selection."""
if event.LeftIsDown():
# dragRect is what is drawn onscreen
# it is in unscrolled coordinates
self.oldDirtyRect = self.dragRect
self.dragCurrent = event.GetPosition()
self.dragRect = rectmath.pointsToRect(self.dragOrigin, self.dragCurrent)
# select all enclosed widgets
logicalOrigin = self.toLogical(self.CalcUnscrolledPosition(self.dragRect.x, self.dragRect.y), scaleOnly = True)
logicalSize = self.toLogical((self.dragRect.width, self.dragRect.height), scaleOnly = True)
logicalRect = wx.Rect(logicalOrigin[0], logicalOrigin[1], logicalSize[0], logicalSize[1])
print "logicalRect is ", logicalRect
for widget in self.widgets:
print "checking against ", widget.getLogicalRect()
widget.setSelected(widget.intersects(logicalRect), False)
self.oldDirtyRect.Inflate(2, 2) # don't know exactly why, but sometimes we're off by 1
self.Refresh(True, self.oldDirtyRect)
else:
self.draggingMarquee = False
# clear event handlers
self.Bind(wx.EVT_MOUSE_EVENTS, None)
self.ReleaseMouse()
self.Refresh()
def startMarquee (self, event):
"""Starts a marquee selection."""
if not self.draggingMarquee:
self.draggingMarquee = True
self.dragOrigin = event.GetPosition()
self.dragCurrent = event.GetPosition()
self.dragRect = rectmath.pointsToRect(self.dragOrigin, self.dragOrigin)
# deselect everything
map(lambda w: w.setSelected(False, False), self.widgets)
# grab mouse focus
self.Bind(wx.EVT_MOUSE_EVENTS, self.followMarquee)
self.CaptureMouse()
self.Refresh()