1 /* Copyright 2020 Samuel Mannehed for Cendio AB
2  *
3  * This is free software; you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License as published by
5  * the Free Software Foundation; either version 2 of the License, or
6  * (at your option) any later version.
7  *
8  * This software is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this software; if not, write to the Free Software
15  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
16  * USA.
17  */
18 
19 #ifndef __WIN32TOUCHHANDLER_H__
20 #define __WIN32TOUCHHANDLER_H__
21 
22 #include <windows.h>
23 
24 #include "BaseTouchHandler.h"
25 #include "GestureEvent.h"
26 
27 class Win32TouchHandler: public BaseTouchHandler {
28   public:
29     Win32TouchHandler(HWND hWnd);
30 
31     bool processEvent(UINT Msg, WPARAM wParam, LPARAM lParam);
32 
33   private:
34     void handleWin32GestureEvent(GESTUREINFO gi);
35     bool isSinglePan(GESTUREINFO gi);
36 
37   protected:
38     virtual void fakeMotionEvent(const GestureEvent origEvent);
39     virtual void fakeButtonEvent(bool press, int button,
40                                  const GestureEvent origEvent);
41     virtual void fakeKeyEvent(bool press, int keycode,
42                               const GestureEvent origEvent);
43   private:
44     void pushFakeEvent(UINT Msg, WPARAM wParam, LPARAM lParam);
45 
46   private:
47     HWND hWnd;
48 
49     bool gesturesConfigured;
50     bool startedSinglePan;
51     POINT gestureStart;
52 
53     bool gestureActive;
54     bool ignoringGesture;
55 
56     int fakeButtonMask;
57     POINT lastFakeMotionPos;
58 };
59 
60 #endif // __WIN32TOUCHHANDLER_H__
61