r16543 by jghali - #9896 : crash when layouting very long text chain

[scribus-commit]

Author: jghali
Date: Thu Mar 31 21:09:50 2011
New Revision: 16543

URL: http://scribus.info/websvn/listing.php?repname=Scribus&sc=1&rev=16543
Log:
#9896 : crash when layouting very long text chain

Modified:
    trunk/Scribus/scribus/pageitem_textframe.cpp

Modified: trunk/Scribus/scribus/pageitem_textframe.cpp
URL: http://scribus.info/websvn/diff.php?repname=Scribus&rev=16543&path=/trunk/Scribus/scribus/pageitem_textframe.cpp
==============================================================================
--- trunk/Scribus/scribus/pageitem_textframe.cpp (original)
+++ trunk/Scribus/scribus/pageitem_textframe.cpp Thu Mar 31 21:09:50 2011
@@ -905,10 +905,14 @@
 //		qDebug("textframe: len=%d, going back", itemText.length());
 		invalid = false;
 		PageItem_TextFrame* prevInChain = dynamic_cast<PageItem_TextFrame*>(BackBox);
-		if (!prevInChain)
-			qDebug() << QString("layout(): backBox=%1 is no textframe!!").arg((ulong)BackBox);
-		else 
-			BackBox->layout();
+		while (prevInChain && prevInChain->invalid)
+		{
+			if (!prevInChain->BackBox || !prevInChain->BackBox->invalid)
+				break;
+			prevInChain = dynamic_cast<PageItem_TextFrame*>(prevInChain->BackBox);
+		}
+		if (prevInChain && prevInChain->invalid)
+			prevInChain->layout();
 		// #9592 : warning, BackBox->layout() may not layout BackBox next box
 		if (!invalid)
 			return;