acr/AcrSwtImageManager.java

   1 package org.argeo.cms.swt.acr;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.util.Optional;
   6
   7 import org.argeo.api.acr.Content;
   8 import org.argeo.api.cms.ux.Cms2DSize;
   9 import org.argeo.cms.acr.ContentUtils;
  10 import org.argeo.cms.acr.SvgAttrs;
  11 import org.argeo.cms.swt.AbstractSwtImageManager;
  12 import org.argeo.cms.ux.CmsUxUtils;
  13 import org.eclipse.swt.graphics.ImageData;
  14
  15 /** Implementation of {@link AbstractSwtImageManager} based on ACR. */
  16 public class AcrSwtImageManager extends AbstractSwtImageManager<Content> {
  17
  18         @Override
  19         public String getImageUrl(Content node) {
  20                 return getDataPathForUrl(node);
  21         }
  22
  23         @Override
  24         public String uploadImage(Content context, Content uploadFolder, String fileName, InputStream in,
  25                         String contentType) {
  26                 throw new UnsupportedOperationException();
  27         }
  28
  29         @Override
  30         protected ImageData getSwtImageData(Content node) {
  31                 try (InputStream in = node.open(InputStream.class)) {
  32                         ImageData imageData = new ImageData(in);
  33                         return imageData;
  34                 } catch (IOException e) {
  35                         throw new RuntimeException(e);
  36                 }
  37         }
  38
  39         @Override
  40         protected String noImg(Cms2DSize size) {
  41                 String dataPath = "";
  42                 return CmsUxUtils.img(dataPath, size);
  43         }
  44
  45         protected String getDataPathForUrl(Content content) {
  46                 return ContentUtils.getDataPathForUrl(content);
  47         }
  48
  49         @Override
  50         public Cms2DSize getImageSize(Content node) {
  51                 // TODO cache it?
  52                 Optional<Integer> width = node.get(SvgAttrs.width, Integer.class);
  53                 Optional<Integer> height = node.get(SvgAttrs.height, Integer.class);
  54                 if (!width.isEmpty() && !height.isEmpty())
  55                         return new Cms2DSize(width.get(), height.get());
  56                 return super.getImageSize(node);
  57         }
  58
  59 }