fix memory leaks

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21928 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt4/GuiFontLoader.cpp

@@ -224,6 +224,11 @@ void GuiFontLoader::update()
 }
 
 
+GuiFontLoader::~GuiFontLoader()
+{
+	update();
+}
+
 /////////////////////////////////////////////////
 
 

src/frontends/qt4/GuiFontLoader.h

@@ -51,7 +51,7 @@ public:
 	GuiFontLoader();
 
 	/// Destructor
-	virtual ~GuiFontLoader() {}
+	virtual ~GuiFontLoader();
 
 	virtual void update();
 	virtual bool available(FontInfo const & f);

src/frontends/qt4/GuiToc.cpp

@@ -52,10 +52,21 @@ GuiToc::GuiToc(GuiView & parent, Qt::DockWidgetArea area, Qt::WindowFlags flags)
 
 GuiToc::~GuiToc()
 {
+	clearTocModels();
 	delete widget_;
 }
 
 
+void GuiToc::clearTocModels()
+{
+	const unsigned int size = toc_models_.size();
+	for (unsigned int i = 0; i < size; ++i) {
+		delete toc_models_[i];
+	}
+	toc_models_.clear();
+}
+
+
 int GuiToc::getTocDepth(int type)
 {
 	if (type < 0)
@@ -134,7 +145,7 @@ bool GuiToc::initialiseParams(string const & data)
 
 	types_.clear();
 	type_names_.clear();
-	toc_models_.clear();
+	clearTocModels();
 	TocList const & tocs = buffer().masterBuffer()->tocBackend().tocs();
 	TocList::const_iterator it = tocs.begin();
 	TocList::const_iterator end = tocs.end();

src/frontends/qt4/GuiToc.h

@@ -72,6 +72,8 @@ private:
 	TocWidget * widget_;
 	///
 	std::vector<TocModel *> toc_models_;
+	///		
+	void clearTocModels();
 
 public:
 	///

src/frontends/qt4/GuiWorkArea.cpp

@@ -251,6 +251,7 @@ GuiWorkArea::~GuiWorkArea()
 {
 	buffer_view_->buffer().workAreaManager().remove(this);
 	delete buffer_view_;
+	delete cursor_;
 }