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libqt4-devel-doc
qtextlayout-cursorto.patch
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File qtextlayout-cursorto.patch of Package libqt4-devel-doc
commit cac12f4592477d99ef6fffaad40345bf85ef53b5 Author: Jiang Jiang <jiang.jiang@nokia.com> Date: Mon Apr 2 12:32:05 2012 +0200 Fix a crash in cursorToX() when new block is added When an empty new block is being added, the layoutData->memory data will be 0, thus QTextEngine::attributes() will return 0. We should only access the attributes pointer when some text actually exist. Task-number: QTBUG-24718 Change-Id: I9ce9f7b57bccf24099a02832ce30fb6cebfaad33 diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp index ee658d9..16f7150 100644 --- a/src/gui/text/qtextlayout.cpp +++ b/src/gui/text/qtextlayout.cpp @@ -2508,6 +2508,10 @@ qreal QTextLine::cursorToX(int *cursorPos, Edge edge) const int pos = *cursorPos; int itm; const HB_CharAttributes *attributes = eng->attributes(); + if (!attributes) { + *cursorPos = 0; + return x.toReal(); + } while (pos < line.from + line.length && !attributes[pos].charStop) pos++; if (pos == line.from + (int)line.length) {
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