CComponentsItem/Form: add var for real item position

If items are used in forms it can be usefully to have a variable
which contains the real position on screen.
This can happen e.g. if an item contains separate render methods, because within forms
usual x/y values related to form dimensions and be converted.

src/gui/components/cc.h

@@ -32,7 +32,7 @@
 #include <string>
 #include <driver/pictureviewer/pictureviewer.h>
 
-// #define DEBUG_CC
+//#define DEBUG_CC
 
 class CComponents
 {
@@ -98,6 +98,9 @@ class CComponentsItem : public CComponents
 	protected:
 		int cc_item_type;
 		int cc_item_index;
+
+		///contains real position and dimensions on screen,
+		int cc_item_xr, cc_item_yr;
 		
 		void hideCCItem(bool no_restore = false);
 		void paintInit(bool do_save_bg);
@@ -105,6 +108,9 @@ class CComponentsItem : public CComponents
 
 	public:
 		CComponentsItem();
+
+		///sets real position on screen. Use this, if item contains own render methods and item is added to a form
+		virtual void setRealPos(const int& xr, const int& yr){cc_item_xr = xr; cc_item_yr = yr;};
 		
 		virtual void paint(bool do_save_bg = CC_SAVE_SCREEN_YES) = 0;
 		virtual void hide(bool no_restore = false);