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Diffstat (limited to 'grc/gui/canvas/flowgraph.py')
| -rw-r--r-- | grc/gui/canvas/flowgraph.py | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/grc/gui/canvas/flowgraph.py b/grc/gui/canvas/flowgraph.py index 192fd3c1cb..61bf96378c 100644 --- a/grc/gui/canvas/flowgraph.py +++ b/grc/gui/canvas/flowgraph.py @@ -347,7 +347,22 @@ class FlowGraph(CoreFlowgraph, Drawable): Args: delta_coordinate: the change in coordinates """ - for selected_block in self.selected_blocks(): + + # Determine selected blocks top left coordinate + blocks = list(self.selected_blocks()) + if not blocks: + return + + min_x, min_y = self.selected_block.coordinate + for selected_block in blocks: + x, y = selected_block.coordinate + min_x, min_y = min(min_x, x), min(min_y, y) + + # Sanitize delta_coordinate so that blocks don't move to negative coordinate + delta_coordinate = max(delta_coordinate[0],-min_x), max(delta_coordinate[1], -min_y) + + # Move selected blocks + for selected_block in blocks: selected_block.move(delta_coordinate) self.element_moved = True |