gum-tool-selection

Rectangle marquee selection in Gum UI layouts checks the InstanceSave.Locked flag to enforce lock behavior across input handlers. The IsActive flag controls marquee activation, ensuring locked elements are ignored during selection events without modifying source code.

The Gum editor selection cascade triggers plugin events in a specific order when an instance is selected. This sequence includes state selection updates and tree view synchronization to maintain UI layout consistency across the editor.

To stop the rectangle selector from activating when moving a locked instance, rely on the IsActive flag handling. The system checks InstanceSave.Locked across move, resize, and rotation input handlers to prevent selection interference.

Gum editor selection involves Move, Resize, Rotation, and PolygonPoint input handlers. Each handler has a specific lifecycle that respects the InstanceSave.Locked property to determine whether it can interact with the selected UI layout element.

Yes, you can understand and control Gum UI layout selection behavior without source code modification. The system provides detailed guidance on input handler lifecycles, lock enforcement, and selection event cascades to adjust behavior directly.

Marquee selection ignores locked UI elements in Gum because the system enforces the InstanceSave.Locked property across its input handlers. The IsActive flag manages the marquee rectangle state, bypassing locked instances during the selection process.