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/**
* $Id$
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/**
* @file GHOST_System.h
* Declaration of GHOST_System class.
*/
#ifndef _GHOST_SYSTEM_H_
#define _GHOST_SYSTEM_H_
#include "GHOST_ISystem.h"
#include "GHOST_Debug.h"
#include "GHOST_Buttons.h"
#include "GHOST_ModifierKeys.h"
#include "GHOST_EventManager.h"
#ifdef GHOST_DEBUG
#include "GHOST_EventPrinter.h"
#endif // GHOST_DEBUG
class GHOST_DisplayManager;
class GHOST_Event;
class GHOST_TimerManager;
class GHOST_Window;
class GHOST_WindowManager;
class GHOST_NDOFManager;
/**
* Implementation of platform independent functionality of the GHOST_ISystem
* interface.
* GHOST_System is an abstract class because not all methods of GHOST_ISystem
* are implemented.
* @see GHOST_ISystem.
* @author Maarten Gribnau
* @date May 7, 2001
*/
class GHOST_System : public GHOST_ISystem
{
protected:
/**
* Constructor.
* Protected default constructor to force use of static createSystem member.
*/
GHOST_System();
/**
* Destructor.
* Protected default constructor to force use of static dispose member.
*/
virtual ~GHOST_System();
public:
/***************************************************************************************
** Time(r) functionality
***************************************************************************************/
/**
* Returns the system time.
* Returns the number of milliseconds since the start of the system process.
* Based on ANSI clock() routine.
* @return The number of milliseconds.
*/
virtual GHOST_TUns64 getMilliSeconds() const;
/**
* Installs a timer.
* Note that, on most operating systems, messages need to be processed in order
* for the timer callbacks to be invoked.
* @param delay The time to wait for the first call to the timerProc (in milliseconds)
* @param interval The interval between calls to the timerProc
* @param timerProc The callback invoked when the interval expires,
* @param userData Placeholder for user data.
* @return A timer task (0 if timer task installation failed).
*/
virtual GHOST_ITimerTask* installTimer(GHOST_TUns64 delay, GHOST_TUns64 interval, GHOST_TimerProcPtr timerProc, GHOST_TUserDataPtr userData = 0);
/**
* Removes a timer.
* @param timerTask Timer task to be removed.
* @return Indication of success.
*/
virtual GHOST_TSuccess removeTimer(GHOST_ITimerTask* timerTask);
/***************************************************************************************
** Display/window management functionality
***************************************************************************************/
/**
* Inherited from GHOST_ISystem but left pure virtual
*
* virtual GHOST_TUns8 getNumDisplays() const = 0;
* virtual void getMainDisplayDimensions(...) const = 0;
* virtual GHOST_IWindow* createWindow(..)
*/
/**
* Dispose a window.
* @param window Pointer to the window to be disposed.
* @return Indication of success.
*/
virtual GHOST_TSuccess disposeWindow(GHOST_IWindow* window);
/**
* Returns whether a window is valid.
* @param window Pointer to the window to be checked.
* @return Indication of validity.
*/
virtual bool validWindow(GHOST_IWindow* window);
/**
* Begins full screen mode.
* @param setting The new setting of the display.
* @param window Window displayed in full screen.
* @param stereoVisual Stereo visual for quad buffered stereo.
* This window is invalid after full screen has been ended.
* @return Indication of success.
*/
virtual GHOST_TSuccess beginFullScreen(const GHOST_DisplaySetting& setting, GHOST_IWindow** window,
const bool stereoVisual);
/**
* Ends full screen mode.
* @return Indication of success.
*/
virtual GHOST_TSuccess endFullScreen(void);
/**
* Returns current full screen mode status.
* @return The current status.
*/
virtual bool getFullScreen(void);
/***************************************************************************************
** Event management functionality
***************************************************************************************/
/**
* Inherited from GHOST_ISystem but left pure virtual
*
* virtual bool processEvents(bool waitForEvent) = 0;
*/
/**
* Dispatches all the events on the stack.
* The event stack will be empty afterwards.
* @return Indication as to whether any of the consumers handled the events.
*/
virtual bool dispatchEvents();
/**
* Adds the given event consumer to our list.
* @param consumer The event consumer to add.
* @return Indication of success.
*/
virtual GHOST_TSuccess addEventConsumer(GHOST_IEventConsumer* consumer);
/***************************************************************************************
** N-degree of freedom devcice management functionality
***************************************************************************************/
/** Inherited from GHOST_ISystem
* Opens the N-degree of freedom device manager
* return 0 if device found, 1 otherwise
*/
virtual int openNDOF(GHOST_IWindow* w,
GHOST_NDOFLibraryInit_fp setNdofLibraryInit,
GHOST_NDOFLibraryShutdown_fp setNdofLibraryShutdown,
GHOST_NDOFDeviceOpen_fp setNdofDeviceOpen);
// original patch only
// GHOST_NDOFEventHandler_fp setNdofEventHandler);
/***************************************************************************************
** Cursor management functionality
***************************************************************************************/
/** Inherited from GHOST_ISystem but left pure virtual
* GHOST_TSuccess getCursorPosition(GHOST_TInt32& x, GHOST_TInt32& y) const = 0;
* GHOST_TSuccess setCursorPosition(GHOST_TInt32 x, GHOST_TInt32 y)
*/
/***************************************************************************************
** Access to mouse button and keyboard states.
***************************************************************************************/
/**
* Returns the state of a modifier key (ouside the message queue).
* @param mask The modifier key state to retrieve.
* @param isDown The state of a modifier key (true == pressed).
* @return Indication of success.
*/
virtual GHOST_TSuccess getModifierKeyState(GHOST_TModifierKeyMask mask, bool& isDown) const;
/**
* Returns the state of a mouse button (ouside the message queue).
* @param mask The button state to retrieve.
* @param isDown Button state.
* @return Indication of success.
*/
virtual GHOST_TSuccess getButtonState(GHOST_TButtonMask mask, bool& isDown) const;
/***************************************************************************************
** Other (internal) functionality.
***************************************************************************************/
/**
* Pushes an event on the stack.
* To dispatch it, call dispatchEvent() or dispatchEvents().
* Do not delete the event!
* @param event The event to push on the stack.
*/
virtual GHOST_TSuccess pushEvent(GHOST_IEvent* event);
/**
* Returns the timer manager.
* @return The timer manager.
*/
inline virtual GHOST_TimerManager* getTimerManager() const;
/**
* Returns a pointer to our event manager.
* @return A pointer to our event manager.
*/
virtual inline GHOST_EventManager* getEventManager() const;
/**
* Returns a pointer to our window manager.
* @return A pointer to our window manager.
*/
virtual inline GHOST_WindowManager* getWindowManager() const;
/**
* Returns a pointer to our n-degree of freedeom manager.
* @return A pointer to our n-degree of freedeom manager.
*/
virtual inline GHOST_NDOFManager* getNDOFManager() const;
/**
* Returns the state of all modifier keys.
* @param keys The state of all modifier keys (true == pressed).
* @return Indication of success.
*/
virtual GHOST_TSuccess getModifierKeys(GHOST_ModifierKeys& keys) const = 0;
/**
* Returns the state of the mouse buttons (ouside the message queue).
* @param buttons The state of the buttons.
* @return Indication of success.
*/
virtual GHOST_TSuccess getButtons(GHOST_Buttons& buttons) const = 0;
/**
* Returns the selection buffer
* @param selection Only used on X11
* @return Returns the clipboard data
*
*/
virtual GHOST_TUns8* getClipboard(bool selection) const = 0;
/**
* Put data to the Clipboard
* @param buffer The buffer to copy to the clipboard
* @param selection The clipboard to copy too only used on X11
*/
virtual void putClipboard(GHOST_TInt8 *buffer, bool selection) const = 0;
protected:
/**
* Initialize the system.
* @return Indication of success.
*/
virtual GHOST_TSuccess init();
/**
* Shut the system down.
* @return Indication of success.
*/
virtual GHOST_TSuccess exit();
/**
* Creates a fullscreen window.
* @param window The window created.
* @return Indication of success.
*/
virtual GHOST_TSuccess createFullScreenWindow(GHOST_Window** window,
const bool stereoVisual);
/** The display manager (platform dependant). */
GHOST_DisplayManager* m_displayManager;
/** The timer manager. */
GHOST_TimerManager* m_timerManager;
/** The window manager. */
GHOST_WindowManager* m_windowManager;
/** The event manager. */
GHOST_EventManager* m_eventManager;
/** The N-degree of freedom device manager */
GHOST_NDOFManager* m_ndofManager;
/** Prints all the events. */
#ifdef GHOST_DEBUG
GHOST_EventPrinter* m_eventPrinter;
#endif // GHOST_DEBUG
/** Settings of the display before the display went fullscreen. */
GHOST_DisplaySetting m_preFullScreenSetting;
};
inline GHOST_TimerManager* GHOST_System::getTimerManager() const
{
return m_timerManager;
}
inline GHOST_EventManager* GHOST_System::getEventManager() const
{
return m_eventManager;
}
inline GHOST_WindowManager* GHOST_System::getWindowManager() const
{
return m_windowManager;
}
inline GHOST_NDOFManager* GHOST_System::getNDOFManager() const
{
return m_ndofManager;
}
#endif // _GHOST_SYSTEM_H_
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