Paul Anton Letnes
c35efbd480
In some cases, arithmetic results (in particular from division) on zoom levels return floats; however, the PyQt API requires int values to function correctly. Therefore, explicit conversion to int or integer division has been added for these cases. A behavior bug causing sudden crashes was fixed. When a rectangular box is dragged with the right mouse button, but the left mouse button is touched prior to release of the right mouse button, the program crashed. The root cause seems to be that this deselects the dragged object so it is no longer available (i.e. `self.canvas.selected_shape is None`). The new behavior does nothing / cancels the operation if this occurs. Added a shortcut for switching file format (CTRL+Y) since I often use this functionality.