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