1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012  Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Library General Public
7    License as published by the Free Software Foundation; either
8    version 2 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Library General Public License for more details.
14
15    You should have received a copy of the GNU Library General Public
16    License along with this library; if not, write to the Free
17    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24#include "SDL_QuartzVideo.h"
25#include "SDL_QuartzWM.h"
26#include "SDL_QuartzWindow.h"
27
28/*
29    This function makes the *SDL region* of the window 100% opaque.
30    The genie effect uses the alpha component. Otherwise,
31    it doesn't seem to matter what value it has.
32*/
33static void QZ_SetPortAlphaOpaque () {
34
35    SDL_Surface *surface = current_video->screen;
36    int bpp = surface->format->BitsPerPixel;
37    Uint32 amask = surface->format->Amask;
38
39    if (bpp == 32 && amask != 0) {
40
41        Uint32    *pixels = (Uint32*) surface->pixels;
42        Uint32    rowPixels = surface->pitch / 4;
43        Uint32    i, j;
44
45        for (i = 0; i < surface->h; i++)
46            for (j = 0; j < surface->w; j++) {
47
48                pixels[ (i * rowPixels) + j ] |= amask;
49            }
50    }
51}
52
53@implementation SDL_QuartzWindow
54
55/* we override these methods to fix the miniaturize animation/dock icon bug */
56- (void)miniaturize:(id)sender
57{
58    if (SDL_VideoSurface->flags & SDL_OPENGL) {
59
60        /*
61            Future: Grab framebuffer and put into NSImage
62            [ qz_window setMiniwindowImage:image ];
63        */
64    }
65    else {
66
67        /* make the alpha channel opaque so anim won't have holes in it */
68        QZ_SetPortAlphaOpaque ();
69    }
70
71    /* window is hidden now */
72    SDL_PrivateAppActive (0, SDL_APPACTIVE);
73
74    [ super miniaturize:sender ];
75}
76
77- (void)display
78{
79    /*
80        This method fires just before the window deminaturizes from the Dock.
81
82        We'll save the current visible surface, let the window manager redraw any
83        UI elements, and restore the SDL surface. This way, no expose event
84        is required, and the deminiaturize works perfectly.
85    */
86     SDL_VideoDevice *this = (SDL_VideoDevice*)current_video;
87
88    /* make sure pixels are fully opaque */
89    if (! ( SDL_VideoSurface->flags & SDL_OPENGL ) )
90        QZ_SetPortAlphaOpaque ();
91
92    /* save current visible SDL surface */
93    [ self cacheImageInRect:[ window_view frame ] ];
94
95    /* let the window manager redraw controls, border, etc */
96    [ super display ];
97
98    /* restore visible SDL surface */
99    [ self restoreCachedImage ];
100
101    /* window is visible again */
102    SDL_PrivateAppActive (1, SDL_APPACTIVE);
103}
104
105- (void)setFrame:(NSRect)frameRect display:(BOOL)flag
106{
107
108    /*
109        If the video surface is NULL, this originated from QZ_SetVideoMode,
110        so don't send the resize event.
111    */
112    SDL_VideoDevice *this = (SDL_VideoDevice*)current_video;
113
114    if (this && SDL_VideoSurface == NULL) {
115
116        [ super setFrame:frameRect display:flag ];
117    }
118    else if (this && qz_window) {
119
120        NSRect newViewFrame;
121
122        [ super setFrame:frameRect display:flag ];
123
124        newViewFrame = [ window_view frame ];
125
126        SDL_PrivateResize (newViewFrame.size.width, newViewFrame.size.height);
127    }
128}
129
130/* QZ_DoActivate() calls a low-level CoreGraphics routine to adjust
131   the cursor position, if input is being grabbed. If app activation is
132   triggered by a mouse click in the title bar, then the window manager
133   gets confused and thinks we're dragging the window. The solution
134   below postpones the activate event to avoid this scenario. */
135- (void)becomeKeyWindow
136{
137	NSEvent *event = [self currentEvent];
138	if ([event type] == NSLeftMouseDown && [event window] == self)
139		watchForMouseUp = YES;
140	else
141		[super becomeKeyWindow];
142}
143
144- (void)sendEvent:(NSEvent *)event
145{
146	[super sendEvent:event];
147	if (watchForMouseUp && [event type] == NSLeftMouseUp)
148	{
149		watchForMouseUp = NO;
150		[super becomeKeyWindow];
151	}
152}
153
154- (void)appDidHide:(NSNotification*)note
155{
156    SDL_PrivateAppActive (0, SDL_APPACTIVE);
157}
158
159- (void)appWillUnhide:(NSNotification*)note
160{
161    SDL_VideoDevice *this = (SDL_VideoDevice*)current_video;
162
163    if ( this ) {
164
165        /* make sure pixels are fully opaque */
166        if (! ( SDL_VideoSurface->flags & SDL_OPENGL ) )
167            QZ_SetPortAlphaOpaque ();
168
169        /* save current visible SDL surface */
170        [ self cacheImageInRect:[ window_view frame ] ];
171    }
172}
173
174- (void)appDidUnhide:(NSNotification*)note
175{
176    /* restore cached image, since it may not be current, post expose event too */
177    [ self restoreCachedImage ];
178
179    /*SDL_PrivateExpose ();*/
180
181    SDL_PrivateAppActive (1, SDL_APPACTIVE);
182}
183
184- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)styleMask backing:(NSBackingStoreType)backingType defer:(BOOL)flag
185{
186    /* Make our window subclass receive these application notifications */
187    [ [ NSNotificationCenter defaultCenter ] addObserver:self
188        selector:@selector(appDidHide:) name:NSApplicationDidHideNotification object:NSApp ];
189
190    [ [ NSNotificationCenter defaultCenter ] addObserver:self
191        selector:@selector(appDidUnhide:) name:NSApplicationDidUnhideNotification object:NSApp ];
192
193    [ [ NSNotificationCenter defaultCenter ] addObserver:self
194        selector:@selector(appWillUnhide:) name:NSApplicationWillUnhideNotification object:NSApp ];
195
196    return [ super initWithContentRect:contentRect styleMask:styleMask backing:backingType defer:flag ];
197}
198
199@end
200
201@implementation SDL_QuartzWindowDelegate
202- (BOOL)windowShouldClose:(id)sender
203{
204    SDL_PrivateQuit();
205    return NO;
206}
207
208- (void)windowDidBecomeKey:(NSNotification *)aNotification
209{
210    QZ_DoActivate (current_video);
211}
212
213- (void)windowDidResignKey:(NSNotification *)aNotification
214{
215    QZ_DoDeactivate (current_video);
216}
217
218@end
219
220@implementation SDL_QuartzView
221
222- (void)resetCursorRects
223{
224    SDL_Cursor *sdlc = SDL_GetCursor();
225    if (sdlc != NULL && sdlc->wm_cursor != NULL) {
226        [self addCursorRect: [self visibleRect] cursor: sdlc->wm_cursor->nscursor];
227    }
228}
229
230@end
231