The calculations that you are making are sound, but as Ralph said, after repeated changes it may end up "off".
The type of positioning that you are doing is one of the things that the current Geometry Manager (GM) Property Inspector (PI) will not allow (when you resize a control, the left/top can only be fixed to the card edge and not proportional). But, the method that the GM uses is helpful to know. The GM avoids the cumulative error problem by storing positioning as fixed numbers in the GM custom properties. It will either store absolute pixel positions or relative % of card dimension positions. Positions are based on either a card edge or another control edge. So for your situation, you would want to calculate the offset % for each side and then just use the new card dimensions to calculate the new control rect. _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
