eclipseprojects/eu.etaxonomy.taxeditor/src/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.URL;
  14
  15 import org.apache.log4j.Logger;
  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.ManagedForm;
  26 import org.eclipse.ui.forms.widgets.TableWrapData;
  27 import org.eclipse.ui.views.properties.IPropertySource;
  28
  29 import eu.etaxonomy.cdm.model.taxon.Taxon;
  30 import eu.etaxonomy.taxeditor.actions.images.AddImageAction;
  31 import eu.etaxonomy.taxeditor.actions.images.RemoveImageAction;
  32 import eu.etaxonomy.taxeditor.editor.CompositeBorderDecorator;
  33 import eu.etaxonomy.taxeditor.editor.ContextMenu;
  34 import eu.etaxonomy.taxeditor.editor.GroupComposite;
  35 import eu.etaxonomy.taxeditor.editor.GroupedComposite;
  36 import eu.etaxonomy.taxeditor.editor.name.AcceptedNameComposite;
  37 import eu.etaxonomy.taxeditor.propertysheet.images.ImagePropertySource;
  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         private URL url;
  48         protected Image image;
  49
  50         private Canvas canvas;
  51
  52         private FocusAdapter focusListener;
  53
  54         /**
  55          * @param groupComposite
  56          * @param form
  57          * @param taxon
  58          * @param url
  59          */
  60         public ImageComposite(GroupComposite groupComposite, ManagedForm form,
  61                         Taxon taxon, URL url) {
  62                 super(groupComposite, form);
  63
  64                 this.url = url;
  65
  66                 setIsDraggable(false);
  67 //              setIcon(AcceptedNameComposite.ACCEPTED_ICON);
  68                 setIndent(AcceptedNameComposite.ACCEPTED_INDENT);
  69
  70                 createImage(url);
  71
  72                 createMenu();
  73                 createBorderSupport();
  74
  75         }
  76
  77         protected void createControl() {
  78                 super.createControl();
  79
  80                 Color groupBackgroundColor = getDisplay().getSystemColor(SWT.COLOR_WHITE);
  81                 setBackground(groupBackgroundColor);
  82         }
  83
  84         /**
  85          * @param url
  86          */
  87         private void createImage(URL url) {
  88                 image = ImagesController.getImage(url);
  89
  90                 // Not optimal - why should getting composite to size to img be so obtuse?!
  91 //              canvas = new Canvas(this, SWT.NO_REDRAW_RESIZE);
  92                 canvas = new Canvas(this, SWT.NONE);
  93
  94 //              if (ImageDescriptor. image.getImageData()
  95
  96                 TableWrapData layoutData = new TableWrapData(TableWrapData.LEFT, TableWrapData.TOP);
  97                 layoutData.heightHint = image.getBounds().height;
  98                 canvas.setLayoutData(layoutData);
  99
 100                 canvas.addPaintListener (new PaintListener () {
 101                         public void paintControl (PaintEvent e) {
 102                                 if (image != null) {
 103                                         canvas.setBounds(image.getBounds());
 104                                         e.gc.drawImage (image, 0, 0);
 105                                 }
 106                         }
 107                 });
 108
 109                 canvas.setBounds(image.getBounds());
 110
 111                 focusListener = new FocusAdapter() {
 112                         public void focusGained(FocusEvent e) {
 113                                 setFocus();
 114                         }
 115                 };
 116                 canvas.addFocusListener(focusListener);
 117         }
 118
 119         /**
 120          *
 121          */
 122         private void createMenu() {
 123                 ContextMenu contextMenu = createContextMenu();
 124
 125                 contextMenu.addAction(new RemoveImageAction(taxon, url));
 126                 contextMenu.addAction(new AddImageAction(taxon));
 127         }
 128
 129         protected ContextMenu createContextMenu() {
 130
 131                 ContextMenu contextMenu = new ContextMenu(this);
 132                 canvas.setMenu(contextMenu.getMenu());
 133                 return contextMenu;
 134         }
 135
 136         /* (non-Javadoc)
 137          * @see eu.etaxonomy.taxeditor.editor.GroupedComposite#getViewerFont()
 138          */
 139         @Override
 140         protected Font getViewerFont() {
 141                 // TODO Auto-generated method stub
 142                 return null;
 143         }
 144
 145         /* (non-Javadoc)
 146          * @see eu.etaxonomy.taxeditor.editor.IHasPropertySource#getPropertySource()
 147          */
 148         public IPropertySource getPropertySource() {
 149                 return new ImagePropertySource(getTaxon(), url);
 150         }
 151
 152         public void createBorderSupport() {
 153
 154 //              if (textViewer == null) {
 155 //                      logger.warn("Could not create border support - getTextViewer() returned null.");
 156 //              } else {
 157                         CompositeBorderDecorator borderDecorator = new CompositeBorderDecorator(
 158                                         canvas, managedForm);
 159                         setBorderDecorator(borderDecorator);
 160                         borderDecorator.setLoseFocus(false);
 161                         this.addFocusListener(borderDecorator);
 162 //                      textViewer.getTextWidget().addFocusListener(borderDecorator);
 163 //              }
 164         }
 165
 166         public void dispose () {
 167                 super.dispose();
 168
 169                 if (getBorderDecorator() != null) {
 170                         this.removeFocusListener(getBorderDecorator());
 171                 }
 172
 173                 if (image != null) {
 174                         image.dispose();
 175                 }
 176         }
 177 }