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added some basic boundary checking for moving nodes and shapes

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This commit is contained in:
Blake Harnden 2019-12-13 09:28:51 -08:00
parent d343bd0655
commit 9c302e8bc6
3 changed files with 28 additions and 1 deletions
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11
coretk/coretk/graph/node.py
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@ -103,10 +103,19 @@ class CanvasNode:
self.motion(x_offset, y_offset, update=False)
def motion(self, x_offset, y_offset, update=True):
original_position = self.canvas.coords(self.id)
self.canvas.move(self.id, x_offset, y_offset)
x, y = self.canvas.coords(self.id)
# check new position
bbox = self.canvas.bbox(self.id)
if not self.canvas.valid_position(*bbox):
self.canvas.coords(self.id, original_position)
return
# move test and selection box
self.canvas.move(self.text_id, x_offset, y_offset)
self.canvas.move_selection(self.id, x_offset, y_offset)
x, y = self.canvas.coords(self.id)
# move antennae
for antenna_id in self.antennae: