cscg22-gearboy

CSCG 2022 Challenge 'Gearboy'
git clone https://git.sinitax.com/sinitax/cscg22-gearboy
Log | Files | Refs | sfeed.txt

SDL_cocoashape.m (3756B)

      1/*
      2  Simple DirectMedia Layer
      3  Copyright (C) 1997-2014 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
     32SDL_WindowShaper*
     33Cocoa_CreateShaper(SDL_Window* window)
     34{
     35    SDL_WindowData* windata = (SDL_WindowData*)window->driverdata;
     36    [windata->nswindow setOpaque:NO];
     37
     38    if ([windata->nswindow respondsToSelector:@selector(setStyleMask:)]) {
     39        [windata->nswindow setStyleMask:NSBorderlessWindowMask];
     40    }
     41
     42    SDL_WindowShaper* result = result = malloc(sizeof(SDL_WindowShaper));
     43    result->window = window;
     44    result->mode.mode = ShapeModeDefault;
     45    result->mode.parameters.binarizationCutoff = 1;
     46    result->userx = result->usery = 0;
     47    window->shaper = result;
     48
     49    SDL_ShapeData* data = malloc(sizeof(SDL_ShapeData));
     50    result->driverdata = data;
     51    data->context = [windata->nswindow graphicsContext];
     52    data->saved = SDL_FALSE;
     53    data->shape = NULL;
     54
     55    int resized_properly = Cocoa_ResizeWindowShape(window);
     56    SDL_assert(resized_properly == 0);
     57    return result;
     58}
     59
     60typedef struct {
     61    NSView* view;
     62    NSBezierPath* path;
     63    SDL_Window* window;
     64} SDL_CocoaClosure;
     65
     66void
     67ConvertRects(SDL_ShapeTree* tree, void* closure)
     68{
     69    SDL_CocoaClosure* data = (SDL_CocoaClosure*)closure;
     70    if(tree->kind == OpaqueShape) {
     71        NSRect rect = NSMakeRect(tree->data.shape.x,data->window->h - tree->data.shape.y,tree->data.shape.w,tree->data.shape.h);
     72        [data->path appendBezierPathWithRect:[data->view convertRect:rect toView:nil]];
     73    }
     74}
     75
     76int
     77Cocoa_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
     78{
     79    SDL_ShapeData* data = (SDL_ShapeData*)shaper->driverdata;
     80    SDL_WindowData* windata = (SDL_WindowData*)shaper->window->driverdata;
     81    SDL_CocoaClosure closure;
     82    NSAutoreleasePool *pool = NULL;
     83    if(data->saved == SDL_TRUE) {
     84        [data->context restoreGraphicsState];
     85        data->saved = SDL_FALSE;
     86    }
     87
     88    /*[data->context saveGraphicsState];*/
     89    /*data->saved = SDL_TRUE;*/
     90    [NSGraphicsContext setCurrentContext:data->context];
     91
     92    [[NSColor clearColor] set];
     93    NSRectFill([[windata->nswindow contentView] frame]);
     94    data->shape = SDL_CalculateShapeTree(*shape_mode,shape);
     95
     96    pool = [[NSAutoreleasePool alloc] init];
     97    closure.view = [windata->nswindow contentView];
     98    closure.path = [NSBezierPath bezierPath];
     99    closure.window = shaper->window;
    100    SDL_TraverseShapeTree(data->shape,&ConvertRects,&closure);
    101    [closure.path addClip];
    102    [pool release];
    103
    104    return 0;
    105}
    106
    107int
    108Cocoa_ResizeWindowShape(SDL_Window *window)
    109{
    110    SDL_ShapeData* data = window->shaper->driverdata;
    111    SDL_assert(data != NULL);
    112    return 0;
    113}
    114
    115#endif /* SDL_VIDEO_DRIVER_COCOA */
    116
    117/* vi: set ts=4 sw=4 expandtab: */