// --------------------------------------------------------------------------- // // @file TwEventWin.c // @brief Helper: // translate and re-send mouse and keyboard events // from Windows message proc to AntTweakBar // // @author Philippe Decaudin // @date 2006/05/10 // @license This file is part of the AntTweakBar library. // For conditions of distribution and use, see License.txt // // --------------------------------------------------------------------------- #include #define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers #include // Mouse wheel support #if !defined WM_MOUSEWHEEL # define WM_MOUSEWHEEL 0x020A #endif // WM_MOUSEWHEEL #if !defined WHEEL_DELTA #define WHEEL_DELTA 120 #endif // WHEEL_DELTA #ifdef _WIN64 #define PARAM_INT __int64 #else #define PARAM_INT int #endif // TwEventWin returns zero if msg has not been handled, // and a non-zero value if it has been handled by the AntTweakBar library. int TW_CALL TwEventWin(void *wnd, unsigned int msg, unsigned PARAM_INT _W64 wParam, PARAM_INT _W64 lParam) { int handled = 0; static unsigned PARAM_INT s_PrevKeyDown = 0; static PARAM_INT s_PrevKeyDownMod = 0; static int s_PrevKeyDownHandled = 0; switch( msg ) { case WM_MOUSEMOVE: // send signed! mouse coordinates handled = TwMouseMotion((short)LOWORD(lParam), (short)HIWORD(lParam)); break; case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK: SetCapture(wnd); handled = TwMouseButton(TW_MOUSE_PRESSED, TW_MOUSE_LEFT); break; case WM_LBUTTONUP: ReleaseCapture(); handled = TwMouseButton(TW_MOUSE_RELEASED, TW_MOUSE_LEFT); break; case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: SetCapture(wnd); handled = TwMouseButton(TW_MOUSE_PRESSED, TW_MOUSE_MIDDLE); break; case WM_MBUTTONUP: ReleaseCapture(); handled = TwMouseButton(TW_MOUSE_RELEASED, TW_MOUSE_MIDDLE); break; case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK: SetCapture(wnd); handled = TwMouseButton(TW_MOUSE_PRESSED, TW_MOUSE_RIGHT); break; case WM_RBUTTONUP: ReleaseCapture(); handled = TwMouseButton(TW_MOUSE_RELEASED, TW_MOUSE_RIGHT); break; case WM_CHAR: case WM_SYSCHAR: { int key = (int)(wParam&0xff); int kmod = 0; if( GetAsyncKeyState(VK_SHIFT)<0 ) kmod |= TW_KMOD_SHIFT; if( GetAsyncKeyState(VK_CONTROL)<0 ) { kmod |= TW_KMOD_CTRL; if( key>0 && key<27 ) key += 'a'-1; } if( GetAsyncKeyState(VK_MENU)<0 ) kmod |= TW_KMOD_ALT; if( key>0 && key<256 ) handled = TwKeyPressed(key, kmod); } break; case WM_KEYDOWN: case WM_SYSKEYDOWN: { int kmod = 0; int testkp = 0; int k = 0; if( GetAsyncKeyState(VK_SHIFT)<0 ) kmod |= TW_KMOD_SHIFT; if( GetAsyncKeyState(VK_CONTROL)<0 ) { kmod |= TW_KMOD_CTRL; testkp = 1; } if( GetAsyncKeyState(VK_MENU)<0 ) { kmod |= TW_KMOD_ALT; testkp = 1; } if( wParam>=VK_F1 && wParam<=VK_F15 ) k = TW_KEY_F1 + ((int)wParam-VK_F1); else if( testkp && wParam>=VK_NUMPAD0 && wParam<=VK_NUMPAD9 ) k = '0' + ((int)wParam-VK_NUMPAD0); else { switch( wParam ) { case VK_UP: k = TW_KEY_UP; break; case VK_DOWN: k = TW_KEY_DOWN; break; case VK_LEFT: k = TW_KEY_LEFT; break; case VK_RIGHT: k = TW_KEY_RIGHT; break; case VK_INSERT: k = TW_KEY_INSERT; break; case VK_DELETE: k = TW_KEY_DELETE; break; case VK_PRIOR: k = TW_KEY_PAGE_UP; break; case VK_NEXT: k = TW_KEY_PAGE_DOWN; break; case VK_HOME: k = TW_KEY_HOME; break; case VK_END: k = TW_KEY_END; break; case VK_DIVIDE: if( testkp ) k = '/'; break; case VK_MULTIPLY: if( testkp ) k = '*'; break; case VK_SUBTRACT: if( testkp ) k = '-'; break; case VK_ADD: if( testkp ) k = '+'; break; case VK_DECIMAL: if( testkp ) k = '.'; break; default: if( (kmod&TW_KMOD_CTRL) && (kmod&TW_KMOD_ALT) ) k = MapVirtualKey( (UINT)wParam, 2 ) & 0x0000FFFF; } } if( k!=0 ) handled = TwKeyPressed(k, kmod); else { // if the key will be handled at next WM_CHAR report this event as handled int key = (int)(wParam&0xff); if( kmod&TW_KMOD_CTRL && key>0 && key<27 ) key += 'a'-1; if( key>0 && key<256 ) handled = TwKeyTest(key, kmod); } s_PrevKeyDown = wParam; s_PrevKeyDownMod = kmod; s_PrevKeyDownHandled = handled; } break; case WM_KEYUP: case WM_SYSKEYUP: { int kmod = 0; if( GetAsyncKeyState(VK_SHIFT)<0 ) kmod |= TW_KMOD_SHIFT; if( GetAsyncKeyState(VK_CONTROL)<0 ) kmod |= TW_KMOD_CTRL; if( GetAsyncKeyState(VK_MENU)<0 ) kmod |= TW_KMOD_ALT; // if the key has been handled at previous WM_KEYDOWN report this event as handled if( s_PrevKeyDown==wParam && s_PrevKeyDownMod==kmod ) handled = s_PrevKeyDownHandled; else { // if the key would have been handled report this event as handled int key = (int)(wParam&0xff); if( kmod&TW_KMOD_CTRL && key>0 && key<27 ) key += 'a'-1; if( key>0 && key<256 ) handled = TwKeyTest(key, kmod); } // reset previous keydown s_PrevKeyDown = 0; s_PrevKeyDownMod = 0; s_PrevKeyDownHandled = 0; } break; case WM_MOUSEWHEEL: { static int s_WheelPos = 0; s_WheelPos += ((short)HIWORD(wParam))/WHEEL_DELTA; handled = TwMouseWheel(s_WheelPos); } break; case WM_SIZE: // tell the new size to AntTweakBar TwWindowSize(LOWORD(lParam), HIWORD(lParam)); // do not set 'handled', WM_SIZE may be also processed by the calling application break; } if( handled ) // Event has been handled by AntTweakBar, so we invalidate the window // content to send a WM_PAINT which will redraw the tweak bar(s). InvalidateRect(wnd, NULL, FALSE); return handled; } // For compatibility with AntTweakBar versions prior to 1.11 #undef TwEventWin32 #ifdef __cplusplus extern "C" { #endif // __cplusplus TW_EXPORT_API int TW_CALL TwEventWin32(void *wnd, unsigned int msg, unsigned int _W64 wParam, int _W64 lParam) { return TwEventWin(wnd, msg, wParam, lParam); } #ifdef __cplusplus } #endif // __cplusplus