/*

SDL - Simple DirectMedia Layer

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_video.h"

#include "SDL_mouse.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>

@implementation SDL_uikitviewcontroller

- (id)initWithSDLWindow:(SDL_Window *)_window {

[self init];

self->window = _window;

return self;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)orient {

return YES;

}

- (void)loadView {

// do nothing.

}

// Send a resized event when the orientation changes.

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {

SDL_WindowData *data = self->window->driverdata;

UIWindow *uiwindow = data->uiwindow;

CGRect frame = [uiwindow frame];

const CGSize size = frame.size;

int w, h;

switch (toInterfaceOrientation) {

case UIInterfaceOrientationPortrait:

case UIInterfaceOrientationPortraitUpsideDown:

w = (size.width < size.height) ? size.width : size.height;

h = (size.width > size.height) ? size.width : size.height;

break;

case UIInterfaceOrientationLandscapeLeft:

case UIInterfaceOrientationLandscapeRight:

w = (size.width > size.height) ? size.width : size.height;

h = (size.width < size.height) ? size.width : size.height;

break;

default:

SDL_assert(0 && "Unexpected interface orientation!");

return;

}

self->window->w = w;

self->window->h = h;

frame.size.width = w;

frame.size.height = h;

SDL_SendWindowEvent(self->window, SDL_WINDOWEVENT_RESIZED, w, h);

}

@end

static int SetupWindowData(_THIS, SDL_Window *window, UIWindow *uiwindow, SDL_bool created)

{

/* Allocate the window data */

data = (SDL_WindowData *)SDL_malloc(sizeof(*data));

if (!data) {

SDL_OutOfMemory();

return -1;

}

data->uiwindow = uiwindow;

data->view = nil;

window->x = 0;

window->y = 0;

window->w = (int)uiwindow.frame.size.width;

window->h = (int)uiwindow.frame.size.height;

}

window->driverdata = data;

// !!! FIXME: should we force this? Shouldn't specifying FULLSCREEN

// !!! FIXME: imply BORDERLESS?

// 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) {

window->flags &= ~SDL_WINDOW_RESIZABLE; // window is NEVER resizeable

window->flags &= ~SDL_WINDOW_INPUT_FOCUS; // never has input focus

} else {

window->flags |= SDL_WINDOW_INPUT_FOCUS; // always has input focus

if (window->flags & SDL_WINDOW_BORDERLESS) {

[UIApplication sharedApplication].statusBarHidden = YES;

} else {

[UIApplication sharedApplication].statusBarHidden = NO;

}

const CGSize uisize = [[uiscreen currentMode] size];

const UIDeviceOrientation o = [[UIDevice currentDevice] orientation];

const BOOL landscape = (o == UIDeviceOrientationLandscapeLeft) ||

(o == UIDeviceOrientationLandscapeRight);

const BOOL rotate = ( ((window->w > window->h) && (!landscape)) ||

((window->w < window->h) && (landscape)) );

if (window->flags & SDL_WINDOW_RESIZABLE) {

// The View Controller will handle rotating the view when the

// device orientation changes. We expose these as resize events.

SDL_uikitviewcontroller *controller;

controller = [SDL_uikitviewcontroller alloc];

data->viewcontroller = [controller initWithSDLWindow:window];

[data->viewcontroller setTitle:@"SDL App"]; // !!! FIXME: hook up SDL_SetWindowTitle()

// !!! FIXME: if (rotate), force a "resize" right at the start

} else {

// Rotate the view if we have to, but only on the main screen

// (presumably, an external display doesn't report orientation).

if (rotate) {

#define D2R(x) (M_PI * (x) / 180.0) // degrees to radians.

[uiwindow setTransform:CGAffineTransformIdentity];

[uiwindow setTransform:CGAffineTransformMakeRotation(D2R(90))];

#undef D2R

}

return 0;

}

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.

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;

}

}

}

// !!! 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];

}

[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;

}

}