barrier/lib/platform/CMSWindowsScreen.h

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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package 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.
*/
#ifndef CMSWINDOWSSCREEN_H
#define CMSWINDOWSSCREEN_H
#include "CPlatformScreen.h"
#include "CSynergyHook.h"
#include "CCondVar.h"
#include "CMutex.h"
#include "CString.h"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
class CEventQueueTimer;
class CMSWindowsDesks;
class CMSWindowsKeyState;
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class CMSWindowsScreenSaver;
class CThread;
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class IJob;
//! Implementation of IPlatformScreen for Microsoft Windows
class CMSWindowsScreen : public CPlatformScreen {
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public:
CMSWindowsScreen(bool isPrimary, IJob* suspend, IJob* resume);
virtual ~CMSWindowsScreen();
//! @name manipulators
//@{
//! Initialize
/*!
Saves the application's HINSTANCE. This \b must be called by
WinMain with the HINSTANCE it was passed.
*/
static void init(HINSTANCE);
//@}
//! @name accessors
//@{
//! Get instance
/*!
Returns the application instance handle passed to init().
*/
static HINSTANCE getInstance();
//@}
// IScreen overrides
virtual void* getEventTarget() const;
virtual bool getClipboard(ClipboardID id, IClipboard*) const;
virtual void getShape(SInt32& x, SInt32& y,
SInt32& width, SInt32& height) const;
virtual void getCursorPos(SInt32& x, SInt32& y) const;
// IPrimaryScreen overrides
virtual void reconfigure(UInt32 activeSides);
virtual void warpCursor(SInt32 x, SInt32 y);
virtual SInt32 getJumpZoneSize() const;
virtual bool isAnyMouseButtonDown() const;
virtual void getCursorCenter(SInt32& x, SInt32& y) const;
// ISecondaryScreen overrides
virtual void fakeMouseButton(ButtonID id, bool press) const;
virtual void fakeMouseMove(SInt32 x, SInt32 y) const;
virtual void fakeMouseWheel(SInt32 delta) const;
// IKeyState overrides
virtual void updateKeys();
// IPlatformScreen overrides
virtual void enable();
virtual void disable();
virtual void enter();
virtual bool leave();
virtual bool setClipboard(ClipboardID, const IClipboard*);
virtual void checkClipboards();
virtual void openScreensaver(bool notify);
virtual void closeScreensaver();
virtual void screensaver(bool activate);
virtual void resetOptions();
virtual void setOptions(const COptionsList& options);
virtual void setSequenceNumber(UInt32);
virtual bool isPrimary() const;
protected:
// IPlatformScreen overrides
virtual void handleSystemEvent(const CEvent&, void*);
virtual void updateButtons();
virtual IKeyState* getKeyState() const;
private:
// initialization and shutdown operations
HINSTANCE openHookLibrary(const char* name);
void closeHookLibrary(HINSTANCE hookLibrary) const;
HCURSOR createBlankCursor() const;
void destroyCursor(HCURSOR cursor) const;
ATOM createWindowClass() const;
ATOM createDeskWindowClass(bool isPrimary) const;
void destroyClass(ATOM windowClass) const;
HWND createWindow(ATOM windowClass, const char* name) const;
void destroyWindow(HWND) const;
// convenience function to send events
void sendEvent(CEvent::Type type, void* = NULL);
void sendClipboardEvent(CEvent::Type type, ClipboardID id);
// handle message before it gets dispatched. returns true iff
// the message should not be dispatched.
bool onPreDispatch(HWND, UINT, WPARAM, LPARAM);
// handle message before it gets dispatched. returns true iff
// the message should not be dispatched.
bool onPreDispatchPrimary(HWND, UINT, WPARAM, LPARAM);
// handle message. returns true iff handled and optionally sets
// \c *result (which defaults to 0).
bool onEvent(HWND, UINT, WPARAM, LPARAM, LRESULT* result);
// message handlers
bool onMark(UInt32 mark);
bool onKey(WPARAM, LPARAM);
bool onMouseButton(WPARAM, LPARAM);
bool onMouseMove(SInt32 x, SInt32 y);
bool onMouseWheel(SInt32 delta);
bool onScreensaver(bool activated);
bool onDisplayChange();
bool onClipboardChange();
// warp cursor without discarding queued events
void warpCursorNoFlush(SInt32 x, SInt32 y);
// discard posted messages
void nextMark();
// test if event should be ignored
bool ignore() const;
// update screen size cache
void updateScreenShape();
// enable/disable special key combinations so we can catch/pass them
void enableSpecialKeys(bool) const;
// map a button event to a button ID
ButtonID mapButtonFromEvent(WPARAM msg, LPARAM button) const;
// map a button event to a press (true) or release (false)
bool mapPressFromEvent(WPARAM msg, LPARAM button) const;
// fix the key state, synthesizing fake key releases for keys
// that aren't down anymore.
void fixKeys();
// (un)schedule a later call to fixKeys
void scheduleFixKeys();
// event handler to fix the key state
void handleFixKeys(const CEvent&, void*);
// job to update the key state
void updateKeysCB(void*);
// our window proc
static LRESULT CALLBACK wndProc(HWND, UINT, WPARAM, LPARAM);
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private:
static HINSTANCE s_instance;
// true if screen is being used as a primary screen, false otherwise
bool m_isPrimary;
// true if windows 95/98/me
bool m_is95Family;
// true if mouse has entered the screen
bool m_isOnScreen;
// our resources
ATOM m_class;
// screen shape stuff
SInt32 m_x, m_y;
SInt32 m_w, m_h;
SInt32 m_xCenter, m_yCenter;
// true if system appears to have multiple monitors
bool m_multimon;
// last mouse position
SInt32 m_xCursor, m_yCursor;
// last clipboard
UInt32 m_sequenceNumber;
// used to discard queued messages that are no longer needed
UInt32 m_mark;
UInt32 m_markReceived;
// the main loop's thread id
DWORD m_threadID;
// the keyboard layout to use when off primary screen
HKL m_keyLayout;
// the timer used to check for fixing key state
CEventQueueTimer* m_fixTimer;
// screen saver stuff
CMSWindowsScreenSaver* m_screensaver;
bool m_screensaverNotify;
// clipboard stuff. our window is used mainly as a clipboard
// owner and as a link in the clipboard viewer chain.
HWND m_window;
HWND m_nextClipboardWindow;
bool m_ownClipboard;
// one desk per desktop and a cond var to communicate with it
CMSWindowsDesks* m_desks;
// hook library stuff
HINSTANCE m_hookLibrary;
InitFunc m_init;
CleanupFunc m_cleanup;
SetSidesFunc m_setSides;
SetZoneFunc m_setZone;
SetModeFunc m_setMode;
// keyboard stuff
CMSWindowsKeyState* m_keyState;
// map of button state
bool m_buttons[1 + kButtonExtra0 + 1];
// suspend/resume callbacks
IJob* m_suspend;
IJob* m_resume;
static CMSWindowsScreen* s_screen;
};
#endif