While a collection search is active the tree is replaced by the flat
ranked list, and that list had no drag support: dragging a result only
moved the selection. Anyone used to searching and then dragging lost the
drag as soon as they typed.
The tree's drag is moved into a static ElementsTreeView::execElementDrag()
taking the source widget, and the results list uses it from the path each
row already carries, so the drag content and pixmap are the same.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G2d2Zi8BfrYRPX88zhaoFG
New element panel, D&D : the pixmap of dragged element is used instead of the Qt default pixmap
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4498 bfdf4180-ca20-0410-9c96-a3a8aa849046
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