Implemented popAllCursors() in CursorManager to ensure that all unnecessary cursors are removed from the cursor stack when returning to the launcher

svn-id: r32642

graphics/cursorman.cpp

@@ -83,6 +83,24 @@ void CursorManager::popCursor() {
 	g_system->showMouse(isVisible());
 }
 
+
+void CursorManager::popAllCursors() {
+	while (!_cursorStack.empty()) {
+		Cursor *cur = _cursorStack.pop();
+		delete cur;
+	}
+
+	if (g_system->hasFeature(OSystem::kFeatureCursorHasPalette)) {
+		while (!_cursorPaletteStack.empty()) {
+			Palette *pal = _cursorPaletteStack.pop();
+			delete pal;
+		}
+	}
+
+	g_system->showMouse(isVisible());
+}
+
+
 void CursorManager::replaceCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor, int targetScale) {
 	if (_cursorStack.empty()) {
 		pushCursor(buf, w, h, hotspotX, hotspotY, keycolor, targetScale);

graphics/cursorman.h

@@ -79,6 +79,14 @@ public:
 	 */
 	void replaceCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor = 255, int targetScale = 1);
 
+	/**
+	 * Pop all of the cursors and cursor palettes from their respective stacks.
+	 * The purpose is to ensure that all unecessary cursors are removed from the 
+	 * stack when returning to the launcher from an engine.
+	 *
+	 */
+	void popAllCursors();
+
 	/**
 	 * Enable/Disable the current cursor palette.
 	 *

gui/newgui.cpp

@@ -364,7 +364,9 @@ void NewGui::restoreState() {
 void NewGui::openDialog(Dialog *dialog) {
 	_dialogStack.push(dialog);
 	_needRedraw = true;
-
+	
+	CursorMan.popAllCursors();
+	
 	// We reflow the dialog just before opening it. If the screen changed
 	// since the last time we looked, also refresh the loaded theme,
 	// and reflow all other open dialogs, too.