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

Branch : - branch - v2.28 - tag -

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• Author : Sam Lantinga
  Date : 2013-08-29 08:30:21
  Hash : e07d7e64
  Message : Christoph Mallon: Replace strlen(x) == 0 (O(n)) by x[0] == '\0' (O(1)).

• src/video/cocoa/SDL_cocoaclipboard.m

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2013 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_config.h"
  
  #if SDL_VIDEO_DRIVER_COCOA
  
  #include "SDL_cocoavideo.h"
  #include "../../events/SDL_clipboardevents_c.h"
  
  static NSString *
  GetTextFormat(_THIS)
  {
      SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
  
      if (data->osversion >= 0x1060) {
          return NSPasteboardTypeString;
      } else {
          return NSStringPboardType;
      }
  }
  
  int
  Cocoa_SetClipboardText(_THIS, const char *text)
  {
      SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
      NSAutoreleasePool *pool;
      NSPasteboard *pasteboard;
      NSString *format = GetTextFormat(_this);
  
      pool = [[NSAutoreleasePool alloc] init];
  
      pasteboard = [NSPasteboard generalPasteboard];
      data->clipboard_count = [pasteboard declareTypes:[NSArray arrayWithObject:format] owner:nil];
      [pasteboard setString:[NSString stringWithUTF8String:text] forType:format];
  
      [pool release];
  
      return 0;
  }
  
  char *
  Cocoa_GetClipboardText(_THIS)
  {
      NSAutoreleasePool *pool;
      NSPasteboard *pasteboard;
      NSString *format = GetTextFormat(_this);
      NSString *available;
      char *text;
  
      pool = [[NSAutoreleasePool alloc] init];
  
      pasteboard = [NSPasteboard generalPasteboard];
      available = [pasteboard availableTypeFromArray: [NSArray arrayWithObject:format]];
      if ([available isEqualToString:format]) {
          NSString* string;
          const char *utf8;
  
          string = [pasteboard stringForType:format];
          if (string == nil) {
              utf8 = "";
          } else {
              utf8 = [string UTF8String];
          }
          text = SDL_strdup(utf8);
      } else {
          text = SDL_strdup("");
      }
  
      [pool release];
  
      return text;
  }
  
  SDL_bool
  Cocoa_HasClipboardText(_THIS)
  {
      SDL_bool result = SDL_FALSE;
      char *text = Cocoa_GetClipboardText(_this);
      if (text) {
          result = text[0] != '\0' ? SDL_TRUE : SDL_FALSE;
      SDL_free(text);
      }
      return result;
  }
  
  void
  Cocoa_CheckClipboardUpdate(struct SDL_VideoData * data)
  {
      NSAutoreleasePool *pool;
      NSPasteboard *pasteboard;
      NSInteger count;
  
      pool = [[NSAutoreleasePool alloc] init];
  
      pasteboard = [NSPasteboard generalPasteboard];
      count = [pasteboard changeCount];
      if (count != data->clipboard_count) {
          if (data->clipboard_count) {
              SDL_SendClipboardUpdate();
          }
          data->clipboard_count = count;
      }
  
      [pool release];
  }
  
  #endif /* SDL_VIDEO_DRIVER_COCOA */
  
  /* vi: set ts=4 sw=4 expandtab: */