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| author | hobbs <hobbs> | 2006-09-06 19:53:22 (GMT) |
|---|---|---|
| committer | hobbs <hobbs> | 2006-09-06 19:53:22 (GMT) |
| commit | 87caa3a60c4200a5a79707791643a555407a1271 (patch) | |
| tree | a863cb0570e5e13ab60b0d6001e51aad68a57f03 /generic | |
| parent | c205e2f533cdd989f00a0c10dcec801c3e6ad6dc (diff) | |
| download | tk-87caa3a60c4200a5a79707791643a555407a1271.zip tk-87caa3a60c4200a5a79707791643a555407a1271.tar.gz tk-87caa3a60c4200a5a79707791643a555407a1271.tar.bz2 | |
* generic/tkText.c (DeleteChars): backport of 8.5 text delete
speedup that removes tags from deleted area first. [Bug 1456342]
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tkText.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/generic/tkText.c b/generic/tkText.c index f1fb16d..a06b90f 100644 --- a/generic/tkText.c +++ b/generic/tkText.c @@ -14,7 +14,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkText.c,v 1.33.2.1 2006/04/05 19:48:43 hobbs Exp $ + * RCS: @(#) $Id: tkText.c,v 1.33.2.2 2006/09/06 19:53:22 hobbs Exp $ */ #include "default.h" @@ -1585,6 +1585,25 @@ DeleteChars(textPtr, index1String, index2String, indexPtr1, indexPtr2) } } + if (line1 < line2) { + /* + * We are deleting more than one line. For speed, we remove all tags + * from the range first. If we don't do this, the code below can (when + * there are many tags) grow non-linearly in execution time. + * [Bug 1456342] + */ + + Tcl_HashSearch search; + Tcl_HashEntry *hPtr; + + for (hPtr=Tcl_FirstHashEntry(&textPtr->tagTable, &search); + hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { + TkTextTag *tagPtr = (TkTextTag *) Tcl_GetHashValue(hPtr); + + TkBTreeTag(&index1, &index2, tagPtr, 0); + } + } + /* * Tell the display what's about to happen so it can discard * obsolete display information, then do the deletion. Also, |