Alberth opened the ticket and wrote:

Putting a resizebox widget at the lower left corner of a window, and trying to use it gives incorrect results. The window is resized asif the resizebox was at the lower right corner of the window.
These patches fix that problem.

This problem has never been found due to the fact that by convention all resize boxes in OpenTTD are at the lower-right corner of the windows.

01_doxygen_fixes.patch adds two Doxygen strings.
02_resize_left_edge.patch fixes the problem by introducing a _resize_left_edge variable that causes reversal of resizing. It also causes shifting of the whole window.
(moving cursor to the left should not reduce the size of the window, but rather increase it, and at the same time move the left edge by the same amount to give the illusion that the left edge moves and the right edge stays fixed).

For experimenting, I have added a test_case.patch that modifies the small map window.
DO NOT COMMIT that patch to trunk!!

One thing that remains is to render a different sprite in the resize box when attached to the left edge.
I have fought with gimp all evening to get openttdgui.pcx bigger so the sprite can be added, and failed.

Attachments

• 01_doxygen_fixes.patch (0.96 KiB)
• 02_resize_left_edge.patch (2.74 KiB)
• test_case.patch (1.77 KiB)

Reported version: trunk
Operating system: All

This issue was imported from FlySpray: https://bugs.openttd.org/task/2704