From 246fa6c1fa496214f9f58717232751ff8c6f2fb5 Mon Sep 17 00:00:00 2001
From: Abs62 <ottomann@yandex.ru>
Date: Fri, 25 Apr 2014 20:43:01 +0400
Subject: [PATCH] Fix rare and strange crash in modern UI

---
 wordlist.cc | 17 +++++++++++++++++
 wordlist.hh |  5 +++++
 2 files changed, 22 insertions(+)

diff --git a/wordlist.cc b/wordlist.cc
index 25a44224..43e2e5c4 100644
--- a/wordlist.cc
+++ b/wordlist.cc
@@ -137,3 +137,20 @@ void WordList::refreshTranslateLine()
   }
 
 }
+
+void WordList::resizeEvent( QResizeEvent * ev )
+{
+  // In some rare cases Qt start send QResizeEvent recursively
+  // up to full stack depletion (tested on Qt 4.8.5, 4.8.6).
+  // We use this trick to break such suicidal process.
+
+  for( int x = 0; x < resizedSizes.size(); x++ )
+    if( resizedSizes.at( x ) == ev->size() )
+      return;
+
+  resizedSizes.push_back( ev->size() );
+
+  QListWidget::resizeEvent( ev );
+
+  resizedSizes.pop_back();
+}
diff --git a/wordlist.hh b/wordlist.hh
index c603105a..71b0131f 100644
--- a/wordlist.hh
+++ b/wordlist.hh
@@ -19,6 +19,9 @@ public:
   virtual void setTranslateLine(QLineEdit * line)
   { translateLine = line; }
 
+protected:
+  virtual void resizeEvent( QResizeEvent * ev );
+
 signals:
   void statusBarMessage(QString const & message, int timeout = 0, QPixmap const & pixmap = QPixmap());
   void contentChanged();
@@ -36,6 +39,8 @@ private:
   WordFinder * wordFinder;
   QLineEdit * translateLine;
   WordListItemDelegate listItemDelegate;
+
+  QVector< QSize > resizedSizes;
 };
 
 #endif // WORDLIST_HH