kc3-lang/SDL/src/video/cocoa/SDL_cocoashape.m

Branch : - branch - v2.28 - tag -

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• Author : Sam Lantinga
  Date : 2014-07-07 12:48:25
  Hash : fc4e798d
  Message : Fixed bug 2631 - Mac: minor code cleanup Alex Szpakowski Some minor changes to the Mac-specific backend code: - Fixed up some code style issues (mostly brace style inconsistencies). - Fixed a compiler warning in SDL_cocoaevents.m. - Removed some useless code now that the 10.7 SDK is required to build SDL. - Removed Gestalt(gestaltSystemVersion, ...) call and switched to NSAppKitVersionNumber for version checking code. Using Gestalt with gestaltSystemVersion will give 0x1090 in Mac OS 10.10+, and the whole Gestalt function was deprecated in Mac OS 10.8.

• src/video/cocoa/SDL_cocoashape.m

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  
  #include "../../SDL_internal.h"
  
  #if SDL_VIDEO_DRIVER_COCOA
  
  #include "SDL_cocoavideo.h"
  #include "SDL_shape.h"
  #include "SDL_cocoashape.h"
  #include "../SDL_sysvideo.h"
  #include "SDL_assert.h"
  
  SDL_WindowShaper*
  Cocoa_CreateShaper(SDL_Window* window)
  {
      SDL_WindowData* windata = (SDL_WindowData*)window->driverdata;
      [windata->nswindow setOpaque:NO];
  
      if ([windata->nswindow respondsToSelector:@selector(setStyleMask:)]) {
          [windata->nswindow setStyleMask:NSBorderlessWindowMask];
      }
  
      SDL_WindowShaper* result = result = malloc(sizeof(SDL_WindowShaper));
      result->window = window;
      result->mode.mode = ShapeModeDefault;
      result->mode.parameters.binarizationCutoff = 1;
      result->userx = result->usery = 0;
      window->shaper = result;
  
      SDL_ShapeData* data = malloc(sizeof(SDL_ShapeData));
      result->driverdata = data;
      data->context = [windata->nswindow graphicsContext];
      data->saved = SDL_FALSE;
      data->shape = NULL;
  
      int resized_properly = Cocoa_ResizeWindowShape(window);
      SDL_assert(resized_properly == 0);
      return result;
  }
  
  typedef struct {
      NSView* view;
      NSBezierPath* path;
      SDL_Window* window;
  } SDL_CocoaClosure;
  
  void
  ConvertRects(SDL_ShapeTree* tree, void* closure)
  {
      SDL_CocoaClosure* data = (SDL_CocoaClosure*)closure;
      if(tree->kind == OpaqueShape) {
          NSRect rect = NSMakeRect(tree->data.shape.x,data->window->h - tree->data.shape.y,tree->data.shape.w,tree->data.shape.h);
          [data->path appendBezierPathWithRect:[data->view convertRect:rect toView:nil]];
      }
  }
  
  int
  Cocoa_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
  {
      SDL_ShapeData* data = (SDL_ShapeData*)shaper->driverdata;
      SDL_WindowData* windata = (SDL_WindowData*)shaper->window->driverdata;
      SDL_CocoaClosure closure;
      NSAutoreleasePool *pool = NULL;
      if(data->saved == SDL_TRUE) {
          [data->context restoreGraphicsState];
          data->saved = SDL_FALSE;
      }
  
      /*[data->context saveGraphicsState];*/
      /*data->saved = SDL_TRUE;*/
      [NSGraphicsContext setCurrentContext:data->context];
  
      [[NSColor clearColor] set];
      NSRectFill([[windata->nswindow contentView] frame]);
      data->shape = SDL_CalculateShapeTree(*shape_mode,shape);
  
      pool = [[NSAutoreleasePool alloc] init];
      closure.view = [windata->nswindow contentView];
      closure.path = [NSBezierPath bezierPath];
      closure.window = shaper->window;
      SDL_TraverseShapeTree(data->shape,&ConvertRects,&closure);
      [closure.path addClip];
      [pool release];
  
      return 0;
  }
  
  int
  Cocoa_ResizeWindowShape(SDL_Window *window)
  {
      SDL_ShapeData* data = window->shaper->driverdata;
      SDL_assert(data != NULL);
      return 0;
  }
  
  #endif /* SDL_VIDEO_DRIVER_COCOA */
  
  /* vi: set ts=4 sw=4 expandtab: */