src/video/cocoa/SDL_cocoamouse.m
author Sam Lantinga <slouken@libsdl.org>
Thu, 20 Jan 2011 17:11:22 -0800
changeset 5058 03db7d4b02b4
parent 5057 bdff53ed6c8b
child 5060 2170edcdfbd0
permissions -rw-r--r--
Moved function for consistency
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2010 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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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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void
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Cocoa_InitMouse(_THIS)
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{
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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;
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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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    int i;
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    NSPoint point = { 0, 0 };
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    SDL_Window *window;
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    SDL_Window *focus = SDL_GetMouseFocus();
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    /* See if there are any fullscreen windows that might handle this event */
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    window = NULL;
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    for (i = 0; i < _this->num_displays; ++i) {
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        SDL_VideoDisplay *display = &_this->displays[i];
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        SDL_Window *candidate = display->fullscreen_window;
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        if (candidate) {
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            SDL_Rect bounds;
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            Cocoa_GetDisplayBounds(_this, display, &bounds);
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            point = [NSEvent mouseLocation];
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            point.x = point.x - bounds.x;
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            point.y = CGDisplayPixelsHigh(kCGDirectMainDisplay) - point.y - bounds.y;
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            if ((point.x >= 0 && point.x < candidate->w) &&
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                (point.y >= 0 && point.y < candidate->h)) {
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                /* This is it! */
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                window = candidate;
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                break;
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            } else if (candidate == focus) {
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                SDL_SetMouseFocus(NULL);
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            }
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        }
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    }
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    if (!window) {
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        return;
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    }
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    switch ([event type]) {
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    case NSLeftMouseDown:
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    case NSOtherMouseDown:
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    case NSRightMouseDown:
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        SDL_SendMouseButton(window, SDL_PRESSED, ConvertMouseButtonToSDL([event buttonNumber]));
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        break;
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    case NSLeftMouseUp:
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    case NSOtherMouseUp:
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    case NSRightMouseUp:
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        SDL_SendMouseButton(window, SDL_RELEASED, ConvertMouseButtonToSDL([event buttonNumber]));
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        break;
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    case NSScrollWheel:
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        Cocoa_HandleMouseWheel(window, event);
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        break;
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    case NSLeftMouseDragged:
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    case NSRightMouseDragged:
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    case NSOtherMouseDragged: /* usually middle mouse dragged */
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    case NSMouseMoved:
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        SDL_SendMouseMotion(window, 0, (int)point.x, (int)point.y);
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        break;
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    default: /* just to avoid compiler warnings */
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        break;
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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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5058
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void
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Cocoa_QuitMouse(_THIS)
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{
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}
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1931
103c6fec2a60 The Mac OS X Cocoa video driver is under construction...
Sam Lantinga <slouken@libsdl.org>
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