slouken@1931
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/*
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slouken@5535
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Simple DirectMedia Layer
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slouken@5535
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Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
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slouken@1931
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#include "SDL_events.h"
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#include "SDL_cocoavideo.h"
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#include "../../events/SDL_mouse_c.h"
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static SDL_Cursor *
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Cocoa_CreateDefaultCursor()
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{
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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NSCursor *nscursor;
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SDL_Cursor *cursor = NULL;
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nscursor = [NSCursor arrowCursor];
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if (nscursor) {
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cursor = SDL_calloc(1, sizeof(*cursor));
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if (cursor) {
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cursor->driverdata = nscursor;
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[nscursor retain];
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}
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}
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[pool release];
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return cursor;
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}
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static SDL_Cursor *
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Cocoa_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
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{
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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NSImage *nsimage;
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NSCursor *nscursor = NULL;
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SDL_Cursor *cursor = NULL;
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nsimage = Cocoa_CreateImage(surface);
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if (nsimage) {
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nscursor = [[NSCursor alloc] initWithImage: nsimage hotSpot: NSMakePoint(hot_x, hot_y)];
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}
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if (nscursor) {
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cursor = SDL_calloc(1, sizeof(*cursor));
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if (cursor) {
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cursor->driverdata = nscursor;
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}
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}
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[pool release];
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return cursor;
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}
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static void
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Cocoa_FreeCursor(SDL_Cursor * cursor)
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{
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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NSCursor *nscursor = (NSCursor *)cursor->driverdata;
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[nscursor release];
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SDL_free(cursor);
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[pool release];
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}
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static int
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Cocoa_ShowCursor(SDL_Cursor * cursor)
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{
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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if (SDL_GetMouseFocus()) {
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if (cursor) {
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NSCursor *nscursor = (NSCursor *)cursor->driverdata;
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[nscursor set];
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[NSCursor unhide];
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} else {
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[NSCursor hide];
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}
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}
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[pool release];
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return 0;
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}
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static void
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Cocoa_WarpMouse(SDL_Window * window, int x, int y)
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{
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CGPoint point;
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point.x = (float)window->x + x;
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point.y = (float)window->y + y;
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CGWarpMouseCursorPosition(point);
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}
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static int
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Cocoa_SetRelativeMouseMode(SDL_bool enabled)
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{
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CGError result;
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if (enabled) {
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result = CGAssociateMouseAndMouseCursorPosition(NO);
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} else {
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result = CGAssociateMouseAndMouseCursorPosition(YES);
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}
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if (result != kCGErrorSuccess) {
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SDL_SetError("CGAssociateMouseAndMouseCursorPosition() failed");
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return -1;
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}
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return 0;
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}
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void
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Cocoa_InitMouse(_THIS)
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{
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SDL_Mouse *mouse = SDL_GetMouse();
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mouse->CreateCursor = Cocoa_CreateCursor;
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mouse->ShowCursor = Cocoa_ShowCursor;
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mouse->FreeCursor = Cocoa_FreeCursor;
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mouse->WarpMouse = Cocoa_WarpMouse;
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mouse->SetRelativeMouseMode = Cocoa_SetRelativeMouseMode;
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SDL_SetDefaultCursor(Cocoa_CreateDefaultCursor());
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}
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static int
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ConvertMouseButtonToSDL(int button)
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{
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switch (button)
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{
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case 0:
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return(SDL_BUTTON_LEFT); /* 1 */
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case 1:
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return(SDL_BUTTON_RIGHT); /* 3 */
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case 2:
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return(SDL_BUTTON_MIDDLE); /* 2 */
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}
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return button+1;
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}
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void
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Cocoa_HandleMouseEvent(_THIS, NSEvent *event)
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{
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SDL_Mouse *mouse = SDL_GetMouse();
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if (mouse->relative_mode &&
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([event type] == NSMouseMoved ||
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[event type] == NSLeftMouseDragged ||
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[event type] == NSRightMouseDragged ||
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[event type] == NSOtherMouseDragged)) {
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float x = [event deltaX];
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float y = [event deltaY];
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SDL_SendMouseMotion(mouse->focus, 1, (int)x, (int)y);
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}
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}
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void
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Cocoa_HandleMouseWheel(SDL_Window *window, NSEvent *event)
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{
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float x = [event deltaX];
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float y = [event deltaY];
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if (x > 0) {
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x += 0.9f;
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} else if (x < 0) {
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x -= 0.9f;
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}
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if (y > 0) {
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y += 0.9f;
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} else if (y < 0) {
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y -= 0.9f;
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}
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SDL_SendMouseWheel(window, (int)x, (int)y);
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}
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void
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Cocoa_QuitMouse(_THIS)
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{
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}
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/* vi: set ts=4 sw=4 expandtab: */
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