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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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