SDL 2.0
SDL_cocoashape.m
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21
22#include "../../SDL_internal.h"
23
24#if SDL_VIDEO_DRIVER_COCOA
25
26#include "SDL_cocoavideo.h"
27#include "SDL_shape.h"
28#include "SDL_cocoashape.h"
29#include "../SDL_sysvideo.h"
30#include "SDL_assert.h"
31
34{
35 SDL_WindowData* windata = (SDL_WindowData*)window->driverdata;
36 [windata->nswindow setOpaque:NO];
37
38 [windata->nswindow setStyleMask:NSWindowStyleMaskBorderless];
39
41 result->window = window;
42 result->mode.mode = ShapeModeDefault;
43 result->mode.parameters.binarizationCutoff = 1;
44 result->userx = result->usery = 0;
45 window->shaper = result;
46
48 result->driverdata = data;
49 data->context = [windata->nswindow graphicsContext];
50 data->saved = SDL_FALSE;
51 data->shape = NULL;
52
53 int resized_properly = Cocoa_ResizeWindowShape(window);
54 SDL_assert(resized_properly == 0);
55 return result;
56}
57
58typedef struct {
59 NSView* view;
60 NSBezierPath* path;
62} SDL_CocoaClosure;
63
64void
65ConvertRects(SDL_ShapeTree* tree, void* closure)
66{
67 SDL_CocoaClosure* data = (SDL_CocoaClosure*)closure;
68 if(tree->kind == OpaqueShape) {
69 NSRect rect = NSMakeRect(tree->data.shape.x,data->window->h - tree->data.shape.y,tree->data.shape.w,tree->data.shape.h);
70 [data->path appendBezierPathWithRect:[data->view convertRect:rect toView:nil]];
71 }
72}
73
74int
76{ @autoreleasepool
77{
79 SDL_WindowData* windata = (SDL_WindowData*)shaper->window->driverdata;
80 SDL_CocoaClosure closure;
81 if(data->saved == SDL_TRUE) {
82 [data->context restoreGraphicsState];
83 data->saved = SDL_FALSE;
84 }
85
86 /*[data->context saveGraphicsState];*/
87 /*data->saved = SDL_TRUE;*/
88 [NSGraphicsContext setCurrentContext:data->context];
89
90 [[NSColor clearColor] set];
91 NSRectFill([[windata->nswindow contentView] frame]);
92 data->shape = SDL_CalculateShapeTree(*shape_mode,shape);
93
94 closure.view = [windata->nswindow contentView];
95 closure.path = [NSBezierPath bezierPath];
96 closure.window = shaper->window;
97 SDL_TraverseShapeTree(data->shape,&ConvertRects,&closure);
98 [closure.path addClip];
99
100 return 0;
101}}
102
103int
105{
106 SDL_ShapeData* data = window->shaper->driverdata;
107 SDL_assert(data != NULL);
108 return 0;
109}
110
111#endif /* SDL_VIDEO_DRIVER_COCOA */
112
113/* vi: set ts=4 sw=4 expandtab: */
#define SDL_assert(condition)
Definition: SDL_assert.h:169
int Cocoa_ResizeWindowShape(SDL_Window *window)
SDL_WindowShaper * Cocoa_CreateShaper(SDL_Window *window)
int Cocoa_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
GLuint64EXT * result
GLsizei const GLchar *const * path
#define malloc
Definition: SDL_qsort.c:47
SDL_ShapeTree * SDL_CalculateShapeTree(SDL_WindowShapeMode mode, SDL_Surface *shape)
Definition: SDL_shape.c:213
void SDL_TraverseShapeTree(SDL_ShapeTree *tree, SDL_TraversalFunction function, void *closure)
Definition: SDL_shape.c:232
@ ShapeModeDefault
The default mode, a binarized alpha cutoff of 1.
Definition: SDL_shape.h:82
@ OpaqueShape
@ SDL_TRUE
Definition: SDL_stdinc.h:164
@ SDL_FALSE
Definition: SDL_stdinc.h:163
#define NULL
Definition: begin_code.h:167
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
int h
Definition: SDL_rect.h:80
int w
Definition: SDL_rect.h:80
int y
Definition: SDL_rect.h:79
int x
Definition: SDL_rect.h:79
SDL_ShapeKind kind
SDL_ShapeUnion data
A collection of pixels used in software blitting.
Definition: SDL_surface.h:71
NSWindow * nswindow
The type used to identify a window.
Definition: SDL_sysvideo.h:74
void * driverdata
Definition: SDL_sysvideo.h:111
A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents.
Definition: SDL_shape.h:101
SDL_Window * window
Definition: SDL_sysvideo.h:43
SDL_Rect rect
Definition: testrelative.c:27
int frame
Definition: teststreaming.c:60