jcr/org.argeo.cms.ui/src/org/argeo/cms/ui/widgets/EditableImage.java

   1 package org.argeo.cms.ui.widgets;
   2
   3 import javax.jcr.Node;
   4 import javax.jcr.RepositoryException;
   5
   6 import org.argeo.api.cms.Cms2DSize;
   7 import org.argeo.api.cms.CmsLog;
   8 import org.argeo.cms.swt.CmsSwtUtils;
   9 import org.argeo.cms.ui.util.CmsUiUtils;
  10 import org.eclipse.swt.graphics.Point;
  11 import org.eclipse.swt.widgets.Composite;
  12 import org.eclipse.swt.widgets.Control;
  13 import org.eclipse.swt.widgets.Label;
  14 import org.eclipse.swt.widgets.Text;
  15
  16 /** A stylable and editable image. */
  17 public abstract class EditableImage extends StyledControl {
  18         private static final long serialVersionUID = -5689145523114022890L;
  19         private final static CmsLog log = CmsLog.getLog(EditableImage.class);
  20
  21         private Cms2DSize preferredImageSize;
  22         private Boolean loaded = false;
  23
  24         public EditableImage(Composite parent, int swtStyle) {
  25                 super(parent, swtStyle);
  26         }
  27
  28         public EditableImage(Composite parent, int swtStyle, Cms2DSize preferredImageSize) {
  29                 super(parent, swtStyle);
  30                 this.preferredImageSize = preferredImageSize;
  31         }
  32
  33         public EditableImage(Composite parent, int style, Node node, boolean cacheImmediately, Cms2DSize preferredImageSize)
  34                         throws RepositoryException {
  35                 super(parent, style, node, cacheImmediately);
  36                 this.preferredImageSize = preferredImageSize;
  37         }
  38
  39         @Override
  40         protected void setContainerLayoutData(Composite composite) {
  41                 // composite.setLayoutData(fillWidth());
  42         }
  43
  44         @Override
  45         protected void setControlLayoutData(Control control) {
  46                 // control.setLayoutData(fillWidth());
  47         }
  48
  49         /** To be overriden. */
  50         protected String createImgTag() throws RepositoryException {
  51                 return CmsUiUtils
  52                                 .noImg(preferredImageSize != null ? preferredImageSize : new Cms2DSize(getSize().x, getSize().y));
  53         }
  54
  55         protected Label createLabel(Composite box, String style) {
  56                 Label lbl = new Label(box, getStyle());
  57                 // lbl.setLayoutData(CmsUiUtils.fillWidth());
  58                 CmsSwtUtils.markup(lbl);
  59                 CmsSwtUtils.style(lbl, style);
  60                 if (mouseListener != null)
  61                         lbl.addMouseListener(mouseListener);
  62                 load(lbl);
  63                 return lbl;
  64         }
  65
  66         /** To be overriden. */
  67         protected synchronized Boolean load(Control control) {
  68                 String imgTag;
  69                 try {
  70                         imgTag = createImgTag();
  71                 } catch (Exception e) {
  72                         // throw new CmsException("Cannot retrieve image", e);
  73                         log.error("Cannot retrieve image", e);
  74                         imgTag = CmsUiUtils.noImg(preferredImageSize);
  75                         loaded = false;
  76                 }
  77
  78                 if (imgTag == null) {
  79                         loaded = false;
  80                         imgTag = CmsUiUtils.noImg(preferredImageSize);
  81                 } else
  82                         loaded = true;
  83                 if (control != null) {
  84                         ((Label) control).setText(imgTag);
  85                         control.setSize(preferredImageSize != null
  86                                         ? new Point(preferredImageSize.getWidth(), preferredImageSize.getHeight())
  87                                         : getSize());
  88                 } else {
  89                         loaded = false;
  90                 }
  91                 getParent().layout();
  92                 return loaded;
  93         }
  94
  95         public void setPreferredSize(Cms2DSize size) {
  96                 this.preferredImageSize = size;
  97                 if (!loaded) {
  98                         load((Label) getControl());
  99                 }
 100         }
 101
 102         protected Text createText(Composite box, String style) {
 103                 Text text = new Text(box, getStyle());
 104                 CmsSwtUtils.style(text, style);
 105                 return text;
 106         }
 107
 108         public Cms2DSize getPreferredImageSize() {
 109                 return preferredImageSize;
 110         }
 111
 112 }