tkPACK: A Demonstration of Packing Geometry Management in Tk

The following is a Tclet that demonstrates how the packer geometry manager works in Tcl/Tk. It requires the Tcl/Tk plugin (version 2.0 or higher) to be installed in your browser. If you don't have the plugin installed, you probably won't see anything useful below. Source code for the packer demo can be downloaded here.

• Clicking on the Spawn buttons will create buttons on the top, bottom, left, and right of the cavity.
• Clicking on each button makes this button active, and its geometry management information is displayed at the bottom. Make changes to the geometry information and watch the widgets respond!
• The ShrinkWrap button removes the artifical space in the center and shows how the arrangement will appear by default. This trick works by turning on and off the "pack propagate" geometry property of the enclosing frame.
• Clicking Destroy will destroy the selected button.