src/video/uikit/SDL_uikitwindow.m
author Sam Lantinga <slouken@libsdl.org>
Fri, 11 Feb 2011 00:25:44 -0800
changeset 5249 7a963be087ef
parent 5246 58265e606e4e
child 5251 1b0de3574c58
permissions -rw-r--r--
Mostly fixed fullscreen mode on Mac OS X, and you can toggle it on and off. There are still some problems with the ConvertNSRect() calculations when switching video modes, which causes wierd window positioning issues, and the fullscreen window is still minimized on exit.

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "SDL_syswm.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "SDL_assert.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"

#include "SDL_uikitvideo.h"
#include "SDL_uikitevents.h"
#include "SDL_uikitwindow.h"
#import "SDL_uikitappdelegate.h"

#import "SDL_uikitopenglview.h"

#include <Foundation/Foundation.h>

static int SetupWindowData(_THIS, SDL_Window *window, UIWindow *uiwindow, SDL_bool created)
{
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
    UIScreen *uiscreen = (UIScreen *) display->driverdata;
    SDL_WindowData *data;
        
    /* Allocate the window data */
    data = (SDL_WindowData *)SDL_malloc(sizeof(*data));
    if (!data) {
        SDL_OutOfMemory();
        return -1;
    }
    data->uiwindow = uiwindow;
    data->view = nil;

    /* Fill in the SDL window with the window data */
    {
        window->x = 0;
        window->y = 0;
        window->w = (int)uiwindow.frame.size.width;
        window->h = (int)uiwindow.frame.size.height;
    }
    
    window->driverdata = data;
    
    window->flags &= ~SDL_WINDOW_RESIZABLE;        /* window is NEVER resizeable */
    window->flags |= SDL_WINDOW_FULLSCREEN;        /* window is always fullscreen */
    window->flags |= SDL_WINDOW_SHOWN;            /* only one window on iPod touch, always shown */
    window->flags |= SDL_WINDOW_INPUT_FOCUS;    /* always has input focus */    

    // SDL_WINDOW_BORDERLESS controls whether status bar is hidden.
    // This is only set if the window is on the main screen. Other screens
    //  just force the window to have the borderless flag.
    if ([UIScreen mainScreen] == uiscreen) {
        if (window->flags & SDL_WINDOW_BORDERLESS) {
            [UIApplication sharedApplication].statusBarHidden = YES;
        } else {
            [UIApplication sharedApplication].statusBarHidden = NO;
        }
    }
    
    return 0;
    
}

int
UIKit_CreateWindow(_THIS, SDL_Window *window)
{
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
    UIScreen *uiscreen = (UIScreen *) display->driverdata;

    // SDL currently puts this window at the start of display's linked list. We rely on this.
    SDL_assert(display->windows == window);

    /* We currently only handle a single window per display on iPhone */
    if (window->next != NULL) {
        SDL_SetError("Only one window allowed per display.");
        return -1;
    }

    // Non-mainscreen windows must be force to borderless, as there's no
    //  status bar there, and we want to get the right dimensions later in
    //  this function.
    if ([UIScreen mainScreen] != uiscreen) {
        window->flags |= SDL_WINDOW_BORDERLESS;
    }

    // If monitor has a resolution of 0x0 (hasn't been explicitly set by the
    //  user, so it's in standby), try to force the display to a resolution
    //  that most closely matches the desired window size.
    if (SDL_UIKit_supports_multiple_displays) {
        const CGSize origsize = [[uiscreen currentMode] size];
        if ((origsize.width == 0.0f) && (origsize.height == 0.0f)) {
            if (display->num_display_modes == 0) {
                _this->GetDisplayModes(_this, display);
            }

            int i;
            const SDL_DisplayMode *bestmode = NULL;
            for (i = display->num_display_modes; i >= 0; i--) {
                const SDL_DisplayMode *mode = &display->display_modes[i];
                if ((mode->w >= window->w) && (mode->h >= window->h))
                    bestmode = mode;
            }

            if (bestmode) {
                UIScreenMode *uimode = (UIScreenMode *) bestmode->driverdata;
                [uiscreen setCurrentMode:uimode];
                display->desktop_mode = *bestmode;
                display->current_mode = *bestmode;
            }
        }
    }

    /* ignore the size user requested, and make a fullscreen window */
    // !!! FIXME: can we have a smaller view?
    UIWindow *uiwindow = [UIWindow alloc];
    if (window->flags & SDL_WINDOW_BORDERLESS)
        uiwindow = [uiwindow initWithFrame:[uiscreen bounds]];
    else
        uiwindow = [uiwindow initWithFrame:[uiscreen applicationFrame]];

    if (SDL_UIKit_supports_multiple_displays) {
        [uiwindow setScreen:uiscreen];
    }

    if (SetupWindowData(_this, window, uiwindow, SDL_TRUE) < 0) {
        [uiwindow release];
        return -1;
    }    
    
    return 1;
    
}

void
UIKit_DestroyWindow(_THIS, SDL_Window * window) {
    SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
    if (data) {
        [data->uiwindow release];
        SDL_free(data);
        window->driverdata = NULL;
    }
}

SDL_bool
UIKit_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)
{
    UIWindow *uiwindow = ((SDL_WindowData *) window->driverdata)->uiwindow;

    if (info->version.major <= SDL_MAJOR_VERSION) {
        info->subsystem = SDL_SYSWM_UIKIT;
        info->info.uikit.window = uiwindow;
        return SDL_TRUE;
    } else {
        SDL_SetError("Application not compiled with SDL %d.%d\n",
                     SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
        return SDL_FALSE;
    }
}

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