int SDL_PrivateMouseButton(Uint8 state, Uint8 button, Sint16 x, Sint16 y) { SDL_Event event; int posted; int move_mouse; Uint8 buttonstate; SDL_memset(&event, 0, sizeof(event)); if ( x || y ) { ClipOffset(&x, &y); move_mouse = 1; if ( x < 0 ) x = 0; else if ( x >= SDL_MouseMaxX ) x = SDL_MouseMaxX-1; if ( y < 0 ) y = 0; else if ( y >= SDL_MouseMaxY ) y = SDL_MouseMaxY-1; } else { move_mouse = 0; } if ( ! x ) x = SDL_MouseX; if ( ! y ) y = SDL_MouseY; buttonstate = SDL_ButtonState; switch ( state ) { case SDL_PRESSED: event.type = SDL_MOUSEBUTTONDOWN; buttonstate |= SDL_BUTTON(button); break; case SDL_RELEASED: event.type = SDL_MOUSEBUTTONUP; buttonstate &= ~SDL_BUTTON(button); break; default: return(0); } SDL_ButtonState = buttonstate; if ( move_mouse ) { SDL_MouseX = x; SDL_MouseY = y; SDL_MoveCursor(SDL_MouseX, SDL_MouseY); } posted = 0; if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) { event.button.state = state; event.button.button = button; event.button.x = x; event.button.y = y; if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { posted = 1; SDL_PushEvent(&event); } } return(posted); }
int SDL_PrivateMouseButton(Uint8 state, Uint8 button, Sint16 x, Sint16 y) { SDL_Event event; int posted; int move_mouse; Uint8 buttonstate; SDL_memset(&event, 0, sizeof(event)); /* Check parameters */ if ( x || y ) { ClipOffset(&x, &y); move_mouse = 1; /* Mouse coordinates range from 0 - width-1 and 0 - height-1 */ if ( x < 0 ) x = 0; else if ( x >= SDL_VideoSurface->w ) x = SDL_VideoSurface->w-1; if ( y < 0 ) y = 0; else if ( y >= SDL_VideoSurface->h ) y = SDL_VideoSurface->h-1; } else { move_mouse = 0; } if ( ! x ) x = SDL_MouseX; if ( ! y ) y = SDL_MouseY; /* Figure out which event to perform */ buttonstate = SDL_ButtonState; switch ( state ) { case SDL_PRESSED: event.type = SDL_MOUSEBUTTONDOWN; buttonstate |= SDL_BUTTON(button); break; case SDL_RELEASED: event.type = SDL_MOUSEBUTTONUP; buttonstate &= ~SDL_BUTTON(button); break; default: /* Invalid state -- bail */ return(0); } /* Update internal mouse state */ SDL_ButtonState = buttonstate; if ( move_mouse ) { SDL_MouseX = x; SDL_MouseY = y; SDL_MoveCursor(SDL_MouseX, SDL_MouseY); } /* Post the event, if desired */ posted = 0; if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) { event.button.state = state; event.button.button = button; event.button.x = x; event.button.y = y; if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { posted = 1; SDL_PushEvent(&event); } } return(posted); }
int SDL_PrivateMouseMotion(Uint8 buttonstate, int relative, Sint16 x, Sint16 y) { int posted; Uint16 X, Y; Sint16 Xrel; Sint16 Yrel; if ( ! buttonstate ) { buttonstate = SDL_ButtonState; } Xrel = x; Yrel = y; if ( relative ) { x = (SDL_MouseX+x); y = (SDL_MouseY+y); } else { ClipOffset(&x, &y); } if ( x < 0 ) X = 0; else if ( x >= SDL_MouseMaxX ) X = SDL_MouseMaxX-1; else X = (Uint16)x; if ( y < 0 ) Y = 0; else if ( y >= SDL_MouseMaxY ) Y = SDL_MouseMaxY-1; else Y = (Uint16)y; if ( ! relative ) { Xrel = X-SDL_MouseX; Yrel = Y-SDL_MouseY; } if ( ! Xrel && ! Yrel ) { #if 0 printf("Mouse event didn't change state - dropped!\n"); #endif return(0); } SDL_ButtonState = buttonstate; SDL_MouseX = X; SDL_MouseY = Y; SDL_DeltaX += Xrel; SDL_DeltaY += Yrel; SDL_MoveCursor(SDL_MouseX, SDL_MouseY); posted = 0; if ( SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE ) { SDL_Event event; SDL_memset(&event, 0, sizeof(event)); event.type = SDL_MOUSEMOTION; event.motion.state = buttonstate; event.motion.x = X; event.motion.y = Y; event.motion.xrel = Xrel; event.motion.yrel = Yrel; if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { posted = 1; SDL_PushEvent(&event); } } return(posted); }
/* These are global for SDL_eventloop.c */ int SDL_PrivateMouseMotion(Uint8 buttonstate, int relative, Sint16 x, Sint16 y) { int posted; Uint16 X, Y; Sint16 Xrel; Sint16 Yrel; /* Don't handle mouse motion if there's no cursor surface */ if ( SDL_VideoSurface == NULL ) { return(0); } /* Default buttonstate is the current one */ if ( ! buttonstate ) { buttonstate = SDL_ButtonState; } Xrel = x; Yrel = y; if ( relative ) { /* Push the cursor around */ x = (SDL_MouseX+x); y = (SDL_MouseY+y); } else { /* Do we need to clip {x,y} ? */ ClipOffset(&x, &y); } /* Mouse coordinates range from 0 - width-1 and 0 - height-1 */ if ( x < 0 ) X = 0; else if ( x >= SDL_VideoSurface->w ) X = SDL_VideoSurface->w-1; else X = (Uint16)x; if ( y < 0 ) Y = 0; else if ( y >= SDL_VideoSurface->h ) Y = SDL_VideoSurface->h-1; else Y = (Uint16)y; /* If not relative mode, generate relative motion from clamped X/Y. This prevents lots of extraneous large delta relative motion when the screen is windowed mode and the mouse is outside the window. */ if ( ! relative ) { Xrel = X-SDL_MouseX; Yrel = Y-SDL_MouseY; } /* Drop events that don't change state */ if ( ! Xrel && ! Yrel ) { #if 0 printf("Mouse event didn't change state - dropped!\n"); #endif return(0); } /* Update internal mouse state */ SDL_ButtonState = buttonstate; SDL_MouseX = X; SDL_MouseY = Y; SDL_DeltaX += Xrel; SDL_DeltaY += Yrel; SDL_MoveCursor(SDL_MouseX, SDL_MouseY); /* Post the event, if desired */ posted = 0; if ( SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE ) { SDL_Event event; SDL_memset(&event, 0, sizeof(event)); event.type = SDL_MOUSEMOTION; event.motion.state = buttonstate; event.motion.x = X; event.motion.y = Y; event.motion.xrel = Xrel; event.motion.yrel = Yrel; if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { posted = 1; SDL_PushEvent(&event); } } return(posted); }