taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/editor/images/ImageComposite.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.editor.images;
  12
  13 import java.net.URI;
  14 import java.net.URISyntaxException;
  15
  16 import org.apache.log4j.Logger;
  17 import org.eclipse.swt.SWT;
  18 import org.eclipse.swt.events.FocusAdapter;
  19 import org.eclipse.swt.events.FocusEvent;
  20 import org.eclipse.swt.events.PaintEvent;
  21 import org.eclipse.swt.events.PaintListener;
  22 import org.eclipse.swt.graphics.Color;
  23 import org.eclipse.swt.graphics.Font;
  24 import org.eclipse.swt.graphics.Image;
  25 import org.eclipse.swt.widgets.Canvas;
  26 import org.eclipse.ui.forms.widgets.TableWrapData;
  27 import org.eclipse.ui.views.properties.IPropertySource;
  28
  29 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  30 import eu.etaxonomy.cdm.model.media.ImageFile;
  31 import eu.etaxonomy.taxeditor.editor.CompositeBorderDecorator;
  32 import eu.etaxonomy.taxeditor.editor.GroupComposite;
  33 import eu.etaxonomy.taxeditor.editor.GroupedComposite;
  34 import eu.etaxonomy.taxeditor.editor.description.DescriptionElementComposite;
  35 import eu.etaxonomy.taxeditor.editor.name.AcceptedNameComposite;
  36 import eu.etaxonomy.taxeditor.propertysheet.images.ImagePropertySource;
  37 import eu.etaxonomy.taxeditor.store.model.ImageResources;
  38
  39 /**
  40  * @author p.ciardelli
  41  * @created 30.03.2009
  42  * @version 1.0
  43  */
  44 public class ImageComposite extends GroupedComposite {
  45         private static final Logger logger = Logger.getLogger(ImageComposite.class);
  46
  47
  48         protected Image image;
  49
  50         private Canvas canvas;
  51
  52         private FocusAdapter focusListener;
  53
  54         private ImageFile imageFile;
  55
  56         /**
  57          * @param groupComposite
  58          * @param form
  59          * @param taxon
  60          * @param url
  61          */
  62         public ImageComposite(TaxonImageEditor editor, GroupComposite groupComposite, ImageFile imageFile) {
  63                 super(editor, groupComposite);
  64
  65
  66
  67                 this.imageFile = imageFile;
  68
  69                 setIsDraggable(false);
  70 //              setIcon(AcceptedNameComposite.ACCEPTED_ICON);
  71                 setIndent(AcceptedNameComposite.ACCEPTED_INDENT);
  72
  73                 createImage(imageFile);
  74
  75                 this.setMenu(editor.getMenu());
  76
  77                 createBorderSupport();
  78
  79         }
  80
  81         protected void createControl() {
  82                 super.createControl();
  83
  84                 Color groupBackgroundColor = getDisplay().getSystemColor(SWT.COLOR_WHITE);
  85                 setBackground(groupBackgroundColor);
  86         }
  87
  88         /**
  89          * @param url
  90          */
  91         private void createImage(ImageFile imageFile) {
  92
  93                 URI uri = null;
  94
  95                 // TODO ImageFile.getUri should return a URI
  96                 try {
  97                         uri = new URI(imageFile.getUri());
  98                 } catch (URISyntaxException e1) {
  99                         // TODO this should never happen
 100                         e1.printStackTrace();
 101                 }
 102
 103
 104                 image = ImageResources.getImage(uri);
 105
 106                 // Not optimal - why should getting composite to size to img be so obtuse?!
 107 //              canvas = new Canvas(this, SWT.NO_REDRAW_RESIZE);
 108                 canvas = new Canvas(this, SWT.NONE);
 109
 110                 TableWrapData layoutData = new TableWrapData(TableWrapData.LEFT, TableWrapData.TOP);
 111                 layoutData.heightHint = image.getBounds().height;
 112                 canvas.setLayoutData(layoutData);
 113
 114                 canvas.addPaintListener (new PaintListener () {
 115                         public void paintControl (PaintEvent e) {
 116                                 if (image != null) {
 117                                         canvas.setBounds(image.getBounds());
 118                                         e.gc.drawImage (image, 0, 0);
 119                                 }
 120                         }
 121                 });
 122
 123                 canvas.setBounds(image.getBounds());
 124
 125                 focusListener = new FocusAdapter() {
 126                         public void focusGained(FocusEvent e) {
 127                                 setFocus();
 128                         }
 129                 };
 130                 canvas.addFocusListener(focusListener);
 131         }
 132
 133
 134         /* (non-Javadoc)
 135          * @see eu.etaxonomy.taxeditor.editor.GroupedComposite#getViewerFont()
 136          */
 137         @Override
 138         protected Font getViewerFont() {
 139                 return null;
 140         }
 141
 142         /* (non-Javadoc)
 143          * @see eu.etaxonomy.taxeditor.editor.IHasPropertySource#getPropertySource()
 144          */
 145         public IPropertySource getPropertySource() {
 146                 return new ImagePropertySource(getTaxon(), imageFile);
 147         }
 148
 149         public void createBorderSupport() {
 150
 151                 CompositeBorderDecorator borderDecorator = new CompositeBorderDecorator(
 152                                 canvas, managedForm);
 153                 setBorderDecorator(borderDecorator);
 154                 borderDecorator.setLoseFocus(false);
 155                 this.addFocusListener(borderDecorator);
 156
 157         }
 158
 159         public void dispose () {
 160                 super.dispose();
 161
 162                 if (getBorderDecorator() != null) {
 163                         this.removeFocusListener(getBorderDecorator());
 164                 }
 165
 166                 if (image != null) {
 167                         image.dispose();
 168                 }
 169         }
 170 }