Formerly there was much special handling for the Tooltip dialog in
GuiManager::runLoop. This was replaced by overloading the event handling
functions in Tooltip. Also the Tooltip was adapted to be run like every
other normal dialog.
svn-id: r54337
Before, it could be instantiated after an engine loaded and then was never deleted, causing memory fragmentation. Also removed inner tooltip call to the GuiManager runloop, which makes the logic simpler since the tooltip is a bit of a hack. I had to remove it because deleting _tooltip in the inner loop (called from tooltip itself) is trouble.
svn-id: r54311
With help of Tanoku tooltips were switched from widgets to dialogs
which helped to fix nasty bug with background not being restored.
Although it is basically a hack around inconsistent font backbuffering
in our GUI code, for the time being it is feasible.
The patch was extended with way to specify tooltip background in the
theme file.
svn-id: r51217
