dnd_list.py 文件源码

def _insert(self, x, y, text):
        """ Insert text at given x, y coordinates --- used with drag-and-drop. """

        # Clean text.
        import string
        text = filter(lambda x: x in (string.letters + string.digits + string.punctuation + ' '), text)

        # Find insertion point.
        index, flags = self.HitTest((x, y))

        if index == wx.NOT_FOUND:
            if flags & wx.LIST_HITTEST_NOWHERE:
                index = self.GetItemCount()
            else:
                return

        # Get bounding rectangle for the item the user is dropping over.
        rect = self.GetItemRect(index)

        # If the user is dropping into the lower half of the rect, we want to insert _after_ this item.
        if y > rect.y + rect.height/2:
            index += 1

        self.InsertStringItem(index, text)