pixiv_down/source/pd/image_reader/posix.d

/*
 * pixiv_down - CLI-based downloading tool for https://www.pixiv.net.
 * Copyright (C) 2024  Mio
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
module pd.image_reader.posix;

version(PD_USE_MAGICK):

import core.stdc.string;
import pd.imaging.magick;
import std.string;
import std.experimental.logger;

public class ImageReader
{
   this(string filename)
   {
      fHandle = NewMagickWand();
      MagickReadImage(fHandle, toStringz(filename));
      fHandle.SetImageDispose(PreviousDispose);
   }

   ~this()
   {
      dispose(false);
   }

   void dispose()
   {
      dispose(true);
   }

   MagickWand* getSystemRef() {
      return this.fHandle;
   }

private:
   MagickWand*        fHandle;

   bool  fDisposed = false;

   void dispose(bool disposing)
   {
      if (fDisposed) {
         return;
      }

      if (disposing) {
         if (null !is fHandle) {
            DestroyMagickWand(fHandle);
         }
      }

      fDisposed = true;
   }
}