* Copyright 2005, Haiku.
* Distributed under the terms of the MIT License.
*
* Authors:
* Axel Dörfler, axeld@pinc-software.de
*/
#ifndef SCREEN_MANAGER_H
#define SCREEN_MANAGER_H
#include <AutoDeleter.h>
#include <Looper.h>
#include <ObjectList.h>
class BMessage;
class DrawingEngine;
class HWInterface;
class HWInterfaceListener;
class Screen;
typedef BObjectList<Screen> ScreenList;
class ScreenOwner {
public:
virtual ~ScreenOwner() {};
virtual void ScreenRemoved(Screen* screen) = 0;
virtual void ScreenAdded(Screen* screen) = 0;
virtual void ScreenChanged(Screen* screen) = 0;
virtual bool ReleaseScreen(Screen* screen) = 0;
};
class ScreenManager : public BLooper {
public:
ScreenManager();
virtual ~ScreenManager();
Screen* ScreenAt(int32 index) const;
int32 CountScreens() const;
status_t AcquireScreens(ScreenOwner* owner, int32* wishList,
int32 wishCount, const char* target, bool force,
ScreenList& list);
void ReleaseScreens(ScreenList& list);
void ScreenChanged(Screen* screen);
virtual void MessageReceived(BMessage* message);
private:
struct screen_item {
ObjectDeleter<Screen> screen;
ScreenOwner* owner;
ObjectDeleter<HWInterfaceListener>
listener;
};
void _ScanDrivers();
screen_item* _AddHWInterface(HWInterface* interface);
BObjectList<screen_item, true> fScreenList;
};
extern ScreenManager *gScreenManager;
#endif
