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.CmsConstants;
   9 import org.argeo.api.cms.ux.Cms2DSize;
  10 import org.argeo.cms.acr.SvgAttrs;
  11 import org.argeo.cms.swt.AbstractSwtImageManager;
  12 import org.argeo.cms.swt.CmsSwtUtils;
  13 import org.argeo.cms.ux.CmsUxUtils;
  14 import org.eclipse.swt.graphics.ImageData;
  15
  16 /** Implementation of {@link AbstractSwtImageManager} based on ACR. */
  17 public class AcrSwtImageManager extends AbstractSwtImageManager<Content> {
  18
  19         @Override
  20         public String getImageUrl(Content node) {
  21                 return getDataPathForUrl(node);
  22         }
  23
  24         @Override
  25         public String uploadImage(Content context, Content uploadFolder, String fileName, InputStream in,
  26                         String contentType) {
  27                 throw new UnsupportedOperationException();
  28         }
  29
  30         @Override
  31         protected ImageData getSwtImageData(Content node) {
  32                 try (InputStream in = node.open(InputStream.class)) {
  33                         ImageData imageData = new ImageData(in);
  34                         return imageData;
  35                 } catch (IOException e) {
  36                         throw new RuntimeException(e);
  37                 }
  38         }
  39
  40         @Override
  41         protected String noImg(Cms2DSize size) {
  42                 String dataPath = "";
  43                 return CmsUxUtils.img(dataPath, size);
  44         }
  45
  46         protected String getDataPathForUrl(Content content) {
  47                 return CmsSwtUtils.cleanPathForUrl(getDataPath(content));
  48         }
  49
  50         /** A path in the node repository */
  51         protected String getDataPath(Content node) {
  52                 // TODO make it more configurable?
  53                 StringBuilder buf = new StringBuilder(CmsConstants.PATH_API_ACR);
  54                 buf.append(node.getPath());
  55                 return buf.toString();
  56         }
  57
  58         @Override
  59         public Cms2DSize getImageSize(Content node) {
  60                 // TODO cache it?
  61                 Optional<Integer> width = node.get(SvgAttrs.width, Integer.class);
  62                 Optional<Integer> height = node.get(SvgAttrs.height, Integer.class);
  63                 if (!width.isEmpty() && !height.isEmpty())
  64                         return new Cms2DSize(width.get(), height.get());
  65                 return super.getImageSize(node);
  66         }
  67
  68 }