diff options
| author | rjohnson <rjohnson> | 1998-10-13 18:13:05 (GMT) |
|---|---|---|
| committer | rjohnson <rjohnson> | 1998-10-13 18:13:05 (GMT) |
| commit | 66a2d0b81392599d07859d249372259daef2441c (patch) | |
| tree | 8f7938e353656771307dd68a16d97c8b59b4e566 /changes | |
| parent | 6b30648b424171905375ec916ab86186a3043dfc (diff) | |
| download | tk-66a2d0b81392599d07859d249372259daef2441c.zip tk-66a2d0b81392599d07859d249372259daef2441c.tar.gz tk-66a2d0b81392599d07859d249372259daef2441c.tar.bz2 | |
Added performance improvement to canvas tag manipulation. This was
a submitted patch.
Diffstat (limited to 'changes')
| -rw-r--r-- | changes | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -2,7 +2,7 @@ This file summarizes all changes made to Tk since version 1.0 was released on March 13, 1991. Changes that aren't backward compatible are marked specially. -RCS: @(#) $Id: changes,v 1.22 1998/10/10 00:30:34 rjohnson Exp $ +RCS: @(#) $Id: changes,v 1.23 1998/10/13 18:13:05 rjohnson Exp $ 3/16/91 (bug fix) Modified tkWindow.c to remove Tk's Tcl commands from the interpreter when the main window is deleted (otherwise there will @@ -4260,3 +4260,9 @@ Tcl. See the bind and event man pages for more details. The listbox and text widgets' default bindings have been updated to understand MouseWheel events. (RJ) +10/12/98 (performance improvement) Added hash table to canvas widget +that holds numeric ids for items. The hash table makes item lookup +almost constant time which improves certain canvas operations +(exspecially for canvases with large number items). Thanks to Mark +Weissman <weissman@gte.com> and Jan Nijtmans <Jan.Nijtmans@wxs.nl> +for submitting this improvement. (RJ) |