constified OnEvent for table (oops)

fixed hardware buffer destruction

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1175 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CGUITable.cpp

@@ -498,7 +498,7 @@ void CGUITable::refreshControls()
 
 
 //! called if an event happened.
-bool CGUITable::OnEvent(SEvent event)
+bool CGUITable::OnEvent(const SEvent &event)
 {
 
 	switch(event.EventType)

source/Irrlicht/CGUITable.h

@@ -124,7 +124,7 @@ namespace gui
 		virtual void clear();
 
 		//! called if an event happened.
-		virtual bool OnEvent(SEvent event);
+		virtual bool CGUITable::OnEvent(const SEvent &event);
 
 		//! draws the element and its children
 		virtual void draw();

source/Irrlicht/CNullDriver.cpp

@@ -143,27 +143,27 @@ CNullDriver::CNullDriver(io::IFileSystem* io, const core::dimension2d<s32>& scre
 //! destructor
 CNullDriver::~CNullDriver()
 {
-	// delete file system
-
+	// drop file system
 	if (FileSystem)
 		FileSystem->drop();
 
 	// delete textures
-
 	deleteAllTextures();
 
 	// delete surface loader
-
 	u32 i;
 	for (i=0; i<SurfaceLoader.size(); ++i)
 		SurfaceLoader[i]->drop();
 
 	// delete surface writer
-
 	for (i=0; i<SurfaceWriter.size(); ++i)
 		SurfaceWriter[i]->drop();
 
+	// delete material renderers
 	deleteMaterialRenders();
+
+	// delete hardware mesh buffers
+	removeAllHardwareBuffers();
 }
 
 
@@ -1303,11 +1303,8 @@ void CNullDriver::removeHardwareBuffer(const scene::IMeshBuffer* mb)
 //! Remove all hardware buffers
 void CNullDriver::removeAllHardwareBuffers()
 {
-	core::map<const scene::IMeshBuffer*,SHWBufferLink*>::ParentLastIterator Iterator=HWBufferMap.getParentLastIterator();
-
-	for (;!Iterator.atEnd();Iterator++)
-		deleteHardwareBuffer(Iterator.getNode()->getValue());
-
+	while (HWBufferMap.size())
+		deleteHardwareBuffer(HWBufferMap.getRoot()->getValue());
 }
 
 bool CNullDriver::isHardwareBufferRecommend(const scene::IMeshBuffer* mb)