QListView force redraw.

[Dave Stewart]

Hi there, first post to the forums. Hope someone can help me.

I have a list view which is populated by any of a number of background threads (mutex locked of course ;-). The problem I have is that the list view only redraws with the new rows when I resize it (it's in a docking window).

I guess I need to emit a signal to get it to redraw but I've tried every signal I can find and still no joy. Code sample follows. What am I doing wrong. I guess I need to get the main event loop to fire but how do I send an appropriate event from another thread?

class MessageList : public QListWidget 
{
Q_OBJECT
public:
	MessageList(QWidget* pW) : QListWidget(pW) {}
 
	void logMessage(const std::string& sMessage) {
		boost::mutex::scoped_lock scoped_lock(m_oMessageListMutex);
		QListWidgetItem *item = new QListWidgetItem(sMessage.c_str(), this);
		setCurrentItem (item);
		update();
		emit itemChanged(item);
		emit itemActivated (item);
		emit itemClicked (item);
		emit itemDoubleClicked (item);
		emit itemEntered (item);
		emit itemPressed (item);
	}
 
protected:
	boost::mutex m_oMessageListMutex;
};

class MessageList : public QListWidget 
{
Q_OBJECT
public:
	MessageList(QWidget* pW) : QListWidget(pW) {}

	void logMessage(const std::string& sMessage) {
		boost::mutex::scoped_lock scoped_lock(m_oMessageListMutex);
		QListWidgetItem *item = new QListWidgetItem(sMessage.c_str(), this);
		setCurrentItem (item);
		update();
		emit itemChanged(item);
		emit itemActivated (item);
		emit itemClicked (item);
		emit itemDoubleClicked (item);
		emit itemEntered (item);
		emit itemPressed (item);
	}

protected:
	boost::mutex m_oMessageListMutex;
};

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Many thanks
Dave