1/*
 2 * Copyright 2005-2009, Haiku.
 3 * Distributed under the terms of the MIT License.
 4 *
 5 * Authors:
 6 *		Axel Dörfler, axeld@pinc-software.de
 7 */
 8#ifndef VIRTUAL_SCREEN_H
 9#define VIRTUAL_SCREEN_H
10
11
12#include "ScreenConfigurations.h"
13#include "ScreenManager.h"
14
15#include <Message.h>
16
17
18class Desktop;
19class DrawingEngine;
20class HWInterface;
21
22
23class VirtualScreen {
24public:
25								VirtualScreen();
26								~VirtualScreen();
27
28			::DrawingEngine*	DrawingEngine() const
29									{ return fDrawingEngine; }
30
31			// TODO: can we have a multiplexing HWInterface as well?
32			//	If not, this would need to be hidden, and only made
33			//	available for the Screen class
34			::HWInterface*		HWInterface() const
35									{ return fHWInterface; }
36
37			status_t			SetConfiguration(Desktop& desktop,
38									ScreenConfigurations& configurations,
39									uint32* _changedScreens = NULL);
40
41			status_t			AddScreen(Screen* screen,
42									ScreenConfigurations& configurations);
43			status_t			RemoveScreen(Screen* screen);
44
45			void				UpdateFrame();
46			BRect				Frame() const;
47
48			// TODO: we need to play with a real multi-screen configuration to
49			//	figure out the specifics here
50			void				SetScreenFrame(int32 index, BRect frame);
51
52			Screen*				ScreenAt(int32 index) const;
53			Screen*				ScreenByID(int32 id) const;
54			BRect				ScreenFrameAt(int32 index) const;
55			int32				CountScreens() const;
56
57private:
58			status_t			_GetMode(Screen* screen,
59									ScreenConfigurations& configurations,
60									display_mode& mode) const;
61			void				_Reset();
62
63	struct screen_item {
64		Screen*	screen;
65		BRect	frame;
66		// TODO: do we want to have a different color per screen as well?
67	};
68
69			BRect				fFrame;
70			BObjectList<screen_item> fScreenList;
71			::DrawingEngine*	fDrawingEngine;
72			::HWInterface*		fHWInterface;
73};
74
75#endif	/* VIRTUAL_SCREEN_H */