| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "SDL_config.h" |
| |
| #if SDL_VIDEO_DRIVER_COCOA |
| |
| #include "SDL_assert.h" |
| #include "SDL_events.h" |
| #include "SDL_cocoamouse.h" |
| #include "SDL_cocoamousetap.h" |
| |
| #include "../../events/SDL_mouse_c.h" |
| |
| @implementation NSCursor (InvisibleCursor) |
| + (NSCursor *)invisibleCursor |
| { |
| static NSCursor *invisibleCursor = NULL; |
| if (!invisibleCursor) { |
| /* RAW 16x16 transparent GIF */ |
| static unsigned char cursorBytes[] = { |
| 0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x10, 0x00, 0x10, 0x00, 0x80, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0xF9, 0x04, |
| 0x01, 0x00, 0x00, 0x01, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x10, |
| 0x00, 0x10, 0x00, 0x00, 0x02, 0x0E, 0x8C, 0x8F, 0xA9, 0xCB, 0xED, |
| 0x0F, 0xA3, 0x9C, 0xB4, 0xDA, 0x8B, 0xB3, 0x3E, 0x05, 0x00, 0x3B |
| }; |
| |
| NSData *cursorData = [NSData dataWithBytesNoCopy:&cursorBytes[0] |
| length:sizeof(cursorBytes) |
| freeWhenDone:NO]; |
| NSImage *cursorImage = [[[NSImage alloc] initWithData:cursorData] autorelease]; |
| invisibleCursor = [[NSCursor alloc] initWithImage:cursorImage |
| hotSpot:NSZeroPoint]; |
| } |
| |
| return invisibleCursor; |
| } |
| @end |
| |
| |
| static SDL_Cursor * |
| Cocoa_CreateDefaultCursor() |
| { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| NSCursor *nscursor; |
| SDL_Cursor *cursor = NULL; |
| |
| nscursor = [NSCursor arrowCursor]; |
| |
| if (nscursor) { |
| cursor = SDL_calloc(1, sizeof(*cursor)); |
| if (cursor) { |
| cursor->driverdata = nscursor; |
| [nscursor retain]; |
| } |
| } |
| |
| [pool release]; |
| |
| return cursor; |
| } |
| |
| static SDL_Cursor * |
| Cocoa_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y) |
| { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| NSImage *nsimage; |
| NSCursor *nscursor = NULL; |
| SDL_Cursor *cursor = NULL; |
| |
| nsimage = Cocoa_CreateImage(surface); |
| if (nsimage) { |
| nscursor = [[NSCursor alloc] initWithImage: nsimage hotSpot: NSMakePoint(hot_x, hot_y)]; |
| } |
| |
| if (nscursor) { |
| cursor = SDL_calloc(1, sizeof(*cursor)); |
| if (cursor) { |
| cursor->driverdata = nscursor; |
| } else { |
| [nscursor release]; |
| } |
| } |
| |
| [pool release]; |
| |
| return cursor; |
| } |
| |
| static SDL_Cursor * |
| Cocoa_CreateSystemCursor(SDL_SystemCursor id) |
| { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| NSCursor *nscursor = NULL; |
| SDL_Cursor *cursor = NULL; |
| |
| switch(id) |
| { |
| case SDL_SYSTEM_CURSOR_ARROW: |
| nscursor = [NSCursor arrowCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_IBEAM: |
| nscursor = [NSCursor IBeamCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_WAIT: |
| nscursor = [NSCursor arrowCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_CROSSHAIR: |
| nscursor = [NSCursor crosshairCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_WAITARROW: |
| nscursor = [NSCursor arrowCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENWSE: |
| case SDL_SYSTEM_CURSOR_SIZENESW: |
| nscursor = [NSCursor closedHandCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZEWE: |
| nscursor = [NSCursor resizeLeftRightCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENS: |
| nscursor = [NSCursor resizeUpDownCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZEALL: |
| nscursor = [NSCursor closedHandCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_NO: |
| nscursor = [NSCursor operationNotAllowedCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_HAND: |
| nscursor = [NSCursor pointingHandCursor]; |
| break; |
| default: |
| SDL_assert(!"Unknown system cursor"); |
| return NULL; |
| } |
| |
| if (nscursor) { |
| cursor = SDL_calloc(1, sizeof(*cursor)); |
| if (cursor) { |
| /* We'll free it later, so retain it here */ |
| [nscursor retain]; |
| cursor->driverdata = nscursor; |
| } |
| } |
| |
| [pool release]; |
| |
| return cursor; |
| } |
| |
| static void |
| Cocoa_FreeCursor(SDL_Cursor * cursor) |
| { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| NSCursor *nscursor = (NSCursor *)cursor->driverdata; |
| |
| [nscursor release]; |
| SDL_free(cursor); |
| |
| [pool release]; |
| } |
| |
| static int |
| Cocoa_ShowCursor(SDL_Cursor * cursor) |
| { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| |
| SDL_VideoDevice *device = SDL_GetVideoDevice(); |
| SDL_Window *window = (device ? device->windows : NULL); |
| for (; window != NULL; window = window->next) { |
| SDL_WindowData *driverdata = (SDL_WindowData *)window->driverdata; |
| if (driverdata) { |
| [driverdata->nswindow performSelectorOnMainThread:@selector(invalidateCursorRectsForView:) |
| withObject:[driverdata->nswindow contentView] |
| waitUntilDone:NO]; |
| } |
| } |
| |
| [pool release]; |
| |
| return 0; |
| } |
| |
| static void |
| Cocoa_WarpMouse(SDL_Window * window, int x, int y) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| CGPoint point = CGPointMake(x, y); |
| |
| if (!(window->flags & SDL_WINDOW_FULLSCREEN)) |
| { |
| point.x += window->x; |
| point.y += window->y; |
| } |
| |
| { |
| /* This makes Cocoa_HandleMouseEvent ignore this delta in the next |
| * movement event. |
| */ |
| SDL_MouseData *driverdata = (SDL_MouseData*)mouse->driverdata; |
| NSPoint location = [NSEvent mouseLocation]; |
| driverdata->deltaXOffset = location.x - point.x; |
| driverdata->deltaYOffset = point.y - location.y; |
| } |
| |
| /* According to the docs, this was deprecated in 10.6, but it's still |
| * around. The substitute requires a CGEventSource, but I'm not entirely |
| * sure how we'd procure the right one for this event. |
| */ |
| CGSetLocalEventsSuppressionInterval(0.0); |
| CGWarpMouseCursorPosition(point); |
| CGSetLocalEventsSuppressionInterval(0.25); |
| |
| if (!mouse->relative_mode) { |
| /* CGWarpMouseCursorPosition doesn't generate a window event, unlike our |
| * other implementations' APIs. |
| */ |
| SDL_SendMouseMotion(mouse->focus, mouse->mouseID, 0, x, y); |
| } |
| } |
| |
| static int |
| Cocoa_SetRelativeMouseMode(SDL_bool enabled) |
| { |
| CGError result; |
| |
| if (enabled) { |
| result = CGAssociateMouseAndMouseCursorPosition(NO); |
| } else { |
| result = CGAssociateMouseAndMouseCursorPosition(YES); |
| } |
| if (result != kCGErrorSuccess) { |
| return SDL_SetError("CGAssociateMouseAndMouseCursorPosition() failed"); |
| } |
| return 0; |
| } |
| |
| void |
| Cocoa_InitMouse(_THIS) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| |
| mouse->driverdata = SDL_calloc(1, sizeof(SDL_MouseData)); |
| |
| mouse->CreateCursor = Cocoa_CreateCursor; |
| mouse->CreateSystemCursor = Cocoa_CreateSystemCursor; |
| mouse->ShowCursor = Cocoa_ShowCursor; |
| mouse->FreeCursor = Cocoa_FreeCursor; |
| mouse->WarpMouse = Cocoa_WarpMouse; |
| mouse->SetRelativeMouseMode = Cocoa_SetRelativeMouseMode; |
| |
| SDL_SetDefaultCursor(Cocoa_CreateDefaultCursor()); |
| |
| Cocoa_InitMouseEventTap(mouse->driverdata); |
| } |
| |
| void |
| Cocoa_HandleMouseEvent(_THIS, NSEvent *event) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| |
| if (mouse->relative_mode && |
| ([event type] == NSMouseMoved || |
| [event type] == NSLeftMouseDragged || |
| [event type] == NSRightMouseDragged || |
| [event type] == NSOtherMouseDragged)) { |
| SDL_MouseData *driverdata = (SDL_MouseData*)mouse->driverdata; |
| float x = [event deltaX] + driverdata->deltaXOffset; |
| float y = [event deltaY] + driverdata->deltaYOffset; |
| driverdata->deltaXOffset = driverdata->deltaYOffset = 0; |
| |
| SDL_SendMouseMotion(mouse->focus, mouse->mouseID, 1, (int)x, (int)y); |
| } |
| } |
| |
| void |
| Cocoa_HandleMouseWheel(SDL_Window *window, NSEvent *event) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| |
| float x = [event deltaX]; |
| float y = [event deltaY]; |
| |
| if (x > 0) { |
| x += 0.9f; |
| } else if (x < 0) { |
| x -= 0.9f; |
| } |
| if (y > 0) { |
| y += 0.9f; |
| } else if (y < 0) { |
| y -= 0.9f; |
| } |
| SDL_SendMouseWheel(window, mouse->mouseID, (int)x, (int)y); |
| } |
| |
| void |
| Cocoa_QuitMouse(_THIS) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| if (mouse) { |
| if (mouse->driverdata) { |
| Cocoa_QuitMouseEventTap(((SDL_MouseData*)mouse->driverdata)); |
| } |
| |
| SDL_free(mouse->driverdata); |
| } |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_COCOA */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |