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1   ////////////////////////////////////////////////////////////////////////////////
2   // MillScript: an Open Spice interpreter and batch website creation tool
3   // Copyright (C) 2004 Kevin Rogers
4   //
5   // This file is part of MillScript.
6   //
7   // MillScript is free software; you can redistribute it and/or modify it under
8   // the terms of the GNU General Public License as published by the Free
9   // Software Foundation; either version 2 of the License, or (at your option)
10  // any later version.
11  //
12  // MillScript is distributed in the hope that it will be useful, but WITHOUT
13  // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  // more details.
16  //
17  // You should have received a copy of the GNU General Public License along with
18  // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19  // Place, Suite 330, Boston, MA  02111-1307  USA
20  ////////////////////////////////////////////////////////////////////////////////
21  package org.millscript.millscript.functions;
22  
23  import org.millscript.commons.vfs.VFile;
24  import org.millscript.millscript.Prefs;
25  import org.millscript.millscript.datatypes.Image;
26  import org.millscript.millscript.render.ImageRender;
27  import org.millscript.millscript.vm.Machine;
28  import org.millscript.millscript.vm.Package;
29  
30  /**
31   * This class represents the parent of all image saving functions in MillScript.
32   */
33  public abstract class ImageFileFunction extends AbstractOutputFileFunction {
34  
35      /**
36       * The image renderer this function should use to render images.
37       */
38      private final ImageRender imageRender;
39  
40      /**
41       * Constructs a new image file function for the specified package and image
42       * renderer.
43       *
44       * @param pack  the package this function belongs to
45       * @param ir    the image renderer this image function should use to render
46       * the image
47       */
48      protected ImageFileFunction( final Package pack, final ImageRender ir ) {
49          super( pack );
50          this.imageRender = ir;
51      }
52  
53      /**
54       * @see org.millscript.millscript.functions.Function#apply(org.millscript.millscript.vm.Machine, int)
55       */
56      @Override
57      public void apply( final Machine mc, final int nargs ) {
58          if ( nargs == 2 ) {
59              Image image = mc.popImage();
60              Page page = toPage( mc.popObject() );
61              page.createDirectoryFor();
62  
63              VFile file = page.getFile();
64              config.getLogger().infoLine( "About to render to " + file );
65  
66              imageRender.renderImage( image, file );
67  
68              Prefs.imageCount += 1;
69              mc.pushObject( page );
70          } else {
71              checkNargs( mc, 2, nargs );
72          }
73      }
74  
75  }