barrier/platform/CMSWindowsScreen.h

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#ifndef CMSWINDOWSSCREEN_H
#define CMSWINDOWSSCREEN_H
#include "CMutex.h"
#include "IClipboard.h"
#include "BasicTypes.h"
#include <windows.h>
class CString;
class CThread;
class CMSWindowsScreen {
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public:
CMSWindowsScreen();
virtual ~CMSWindowsScreen();
// manipulators
static void init(HINSTANCE);
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protected:
// runs an event loop and returns when WM_QUIT is received
void doRun();
// sends WM_QUIT to force doRun() to return
void doStop();
// open the X display. calls onOpenDisplay() after opening the display,
// getting the screen, its size, and root window. then it starts the
// event thread.
void openDisplay();
// destroy the window and close the display. calls onCloseDisplay()
// after the event thread has been shut down but before the display
// is closed.
void closeDisplay();
// get the application instance handle and the registered window
// class atom
static HINSTANCE getInstance();
ATOM getClass() const;
// update screen size cache
void updateScreenSize();
// get the size of the screen
void getScreenSize(SInt32* w, SInt32* h) const;
// wait for and get the next message. cancellable.
void getEvent(MSG*) const;
// called by doRun() to handle an event. return true to skip
// event translation and dispatch.
virtual bool onPreTranslate(MSG*) = 0;
// called by window proc. subclass must call DefWindowProc() if necessary
virtual LRESULT onEvent(HWND, UINT, WPARAM, LPARAM) = 0;
// called by openDisplay() to allow subclasses to prepare the display
virtual void onOpenDisplay() = 0;
// called by closeDisplay() to
virtual void onCloseDisplay() = 0;
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private:
static LRESULT CALLBACK wndProc(HWND, UINT, WPARAM, LPARAM);
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private:
static HINSTANCE s_instance;
ATOM m_class;
HICON m_icon;
HCURSOR m_cursor;
SInt32 m_w, m_h;
DWORD m_thread;
static CMSWindowsScreen* s_screen;
};
#endif