C++ (Cpp) gimp_drawable_get_sub_preview示例

示例#1

文件： gimpdrawable-preview.c 项目： Amerekanets/gimp

static TempBuf *
gimp_drawable_preview_private (GimpDrawable *drawable,
                               gint          width,
                               gint          height)
{
  TempBuf *ret_buf;

  if (! drawable->preview_valid ||
      ! (ret_buf = gimp_preview_cache_get (&drawable->preview_cache,
                                           width, height)))
    {
      GimpItem *item = GIMP_ITEM (drawable);

      ret_buf = gimp_drawable_get_sub_preview (drawable,
                                               0, 0,
                                               gimp_item_width (item),
                                               gimp_item_height (item),
                                               width,
                                               height);

      if (! drawable->preview_valid)
        gimp_preview_cache_invalidate (&drawable->preview_cache);

      drawable->preview_valid = TRUE;

      gimp_preview_cache_add (&drawable->preview_cache, ret_buf);
    }

  return ret_buf;
}

示例#2

文件： gimpdrawable-preview.c 项目： Anstep/gimp

GimpTempBuf *
gimp_drawable_get_new_preview (GimpViewable *viewable,
                               GimpContext  *context,
                               gint          width,
                               gint          height)
{
  GimpItem  *item  = GIMP_ITEM (viewable);
  GimpImage *image = gimp_item_get_image (item);

  if (! image->gimp->config->layer_previews)
    return NULL;

  return gimp_drawable_get_sub_preview (GIMP_DRAWABLE (viewable),
                                        0, 0,
                                        gimp_item_get_width  (item),
                                        gimp_item_get_height (item),
                                        width,
                                        height);
}