Remove UI dependencies to JCR.

[lgpl/argeo-commons.git] / jcr / org.argeo.cms.jcr.ui / src / org / argeo / cms / ui / widgets / EditableImage.java

diff --git a/jcr/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/widgets/EditableImage.java b/jcr/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/widgets/EditableImage.java
new file mode 100644 (file)
index 0000000..95d9e8e
--- /dev/null
+++ b/jcr/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/widgets/EditableImage.java
@@ -0,0 +1,112 @@
+package org.argeo.cms.ui.widgets;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+
+import org.argeo.api.cms.CmsLog;
+import org.argeo.api.cms.ux.Cms2DSize;
+import org.argeo.cms.swt.CmsSwtUtils;
+import org.argeo.cms.ui.util.CmsUiUtils;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Text;
+
+/** A stylable and editable image. */
+public abstract class EditableImage extends StyledControl {
+       private static final long serialVersionUID = -5689145523114022890L;
+       private final static CmsLog log = CmsLog.getLog(EditableImage.class);
+
+       private Cms2DSize preferredImageSize;
+       private Boolean loaded = false;
+
+       public EditableImage(Composite parent, int swtStyle) {
+               super(parent, swtStyle);
+       }
+
+       public EditableImage(Composite parent, int swtStyle, Cms2DSize preferredImageSize) {
+               super(parent, swtStyle);
+               this.preferredImageSize = preferredImageSize;
+       }
+
+       public EditableImage(Composite parent, int style, Node node, boolean cacheImmediately, Cms2DSize preferredImageSize)
+                       throws RepositoryException {
+               super(parent, style, node, cacheImmediately);
+               this.preferredImageSize = preferredImageSize;
+       }
+
+       @Override
+       protected void setContainerLayoutData(Composite composite) {
+               // composite.setLayoutData(fillWidth());
+       }
+
+       @Override
+       protected void setControlLayoutData(Control control) {
+               // control.setLayoutData(fillWidth());
+       }
+
+       /** To be overriden. */
+       protected String createImgTag() throws RepositoryException {
+               return CmsUiUtils
+                               .noImg(preferredImageSize != null ? preferredImageSize : new Cms2DSize(getSize().x, getSize().y));
+       }
+
+       protected Label createLabel(Composite box, String style) {
+               Label lbl = new Label(box, getStyle());
+               // lbl.setLayoutData(CmsUiUtils.fillWidth());
+               CmsSwtUtils.markup(lbl);
+               CmsSwtUtils.style(lbl, style);
+               if (mouseListener != null)
+                       lbl.addMouseListener(mouseListener);
+               load(lbl);
+               return lbl;
+       }
+
+       /** To be overriden. */
+       protected synchronized Boolean load(Control control) {
+               String imgTag;
+               try {
+                       imgTag = createImgTag();
+               } catch (Exception e) {
+                       // throw new CmsException("Cannot retrieve image", e);
+                       log.error("Cannot retrieve image", e);
+                       imgTag = CmsUiUtils.noImg(preferredImageSize);
+                       loaded = false;
+               }
+
+               if (imgTag == null) {
+                       loaded = false;
+                       imgTag = CmsUiUtils.noImg(preferredImageSize);
+               } else
+                       loaded = true;
+               if (control != null) {
+                       ((Label) control).setText(imgTag);
+                       control.setSize(preferredImageSize != null
+                                       ? new Point(preferredImageSize.getWidth(), preferredImageSize.getHeight())
+                                       : getSize());
+               } else {
+                       loaded = false;
+               }
+               getParent().layout();
+               return loaded;
+       }
+
+       public void setPreferredSize(Cms2DSize size) {
+               this.preferredImageSize = size;
+               if (!loaded) {
+                       load((Label) getControl());
+               }
+       }
+
+       protected Text createText(Composite box, String style) {
+               Text text = new Text(box, getStyle());
+               CmsSwtUtils.style(text, style);
+               return text;
+       }
+
+       public Cms2DSize getPreferredImageSize() {
+               return preferredImageSize;
+       }
+
+}