kc3-lang/SDL/src/events/SDL_dropevents.c

• Show log

  Commit

• Hash : a8780c6a
  Author :
  Date : 2020-01-16T20:49:25
  

  Updated copyright date for 2020

Download

• src/events/SDL_dropevents.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2020 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"
  
  /* Drag and drop event handling code for SDL */
  
  #include "SDL_events.h"
  #include "SDL_events_c.h"
  #include "SDL_dropevents_c.h"
  
  #include "../video/SDL_sysvideo.h"  /* for SDL_Window internals. */
  
  
  static int
  SDL_SendDrop(SDL_Window *window, const SDL_EventType evtype, const char *data)
  {
      static SDL_bool app_is_dropping = SDL_FALSE;
      int posted = 0;
  
      /* Post the event, if desired */
      if (SDL_GetEventState(evtype) == SDL_ENABLE) {
          const SDL_bool need_begin = window ? !window->is_dropping : !app_is_dropping;
          SDL_Event event;
  
          if (need_begin) {
              SDL_zero(event);
              event.type = SDL_DROPBEGIN;
  
              if (window) {
                  event.drop.windowID = window->id;
              }
  
              posted = (SDL_PushEvent(&event) > 0);
              if (!posted) {
                  return 0;
              }
              if (window) {
                  window->is_dropping = SDL_TRUE;
              } else {
                  app_is_dropping = SDL_TRUE;
              }
          }
  
          SDL_zero(event);
          event.type = evtype;
          event.drop.file = data ? SDL_strdup(data) : NULL;
          event.drop.windowID = window ? window->id : 0;
          posted = (SDL_PushEvent(&event) > 0);
  
          if (posted && (evtype == SDL_DROPCOMPLETE)) {
              if (window) {
                  window->is_dropping = SDL_FALSE;
              } else {
                  app_is_dropping = SDL_FALSE;
              }
          }
      }
      return posted;
  }
  
  int
  SDL_SendDropFile(SDL_Window *window, const char *file)
  {
      return SDL_SendDrop(window, SDL_DROPFILE, file);
  }
  
  int
  SDL_SendDropText(SDL_Window *window, const char *text)
  {
      return SDL_SendDrop(window, SDL_DROPTEXT, text);
  }
  
  int
  SDL_SendDropComplete(SDL_Window *window)
  {
      return SDL_SendDrop(window, SDL_DROPCOMPLETE, NULL);
  }
  
  
  /* vi: set ts=4 sw=4 expandtab: */
  

Download