added hold checkbox in input/output view

refs 425

org.fortiss.tooling.base.ui/trunk/META-INF/MANIFEST.MF

@@ -11,6 +11,7 @@ Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6
 Bundle-Vendor: fortiss GmbH
 Export-Package: org.fortiss.tooling.base.ui,
+ org.fortiss.tooling.base.ui.checkboxtablecell,
  org.fortiss.tooling.base.ui.compose,
  org.fortiss.tooling.base.ui.contentprovider,
  org.fortiss.tooling.base.ui.databinding,

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/checkboxtablecell/CheckBoxEditingSupport.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2011 ForTISS GmbH                     |
+|                                                                          |
+| Licensed under the Apache License, Version 2.0 (the "License");          |
+| you may not use this file except in compliance with the License.         |
+| You may obtain a copy of the License at                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| Unless required by applicable law or agreed to in writing, software      |
+| distributed under the License is distributed on an "AS IS" BASIS,        |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and      |
+| limitations under the License.                                           |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.base.ui.checkboxtablecell;
+
+import org.eclipse.jface.viewers.CellEditor;
+import org.eclipse.jface.viewers.CheckboxCellEditor;
+import org.eclipse.jface.viewers.ColumnViewer;
+import org.eclipse.jface.viewers.EditingSupport;
+import org.eclipse.jface.viewers.TableViewer;
+
+/**
+ * {@link EditingSupport} for checkbox cells.
+ * 
+ * @author hoelzl
+ * @author $Author$
+ * @version $Rev$
+ * @ConQAT.Rating YELLOW Hash: A39EE0F9184DD86FD5FC5D46A164976A
+ */
+public abstract class CheckBoxEditingSupport extends EditingSupport {
+
+	/**
+	 * Stores the shared cell editor.
+	 */
+	private CellEditor cellEditor;
+
+	/** Constructor */
+	public CheckBoxEditingSupport(ColumnViewer viewer) {
+		super(viewer);
+		cellEditor = new CheckboxCellEditor(((TableViewer) viewer).getTable());
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	protected boolean canEdit(Object element) {
+		return true;
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	protected final CellEditor getCellEditor(Object element) {
+		return cellEditor;
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	protected final Object getValue(Object element) {
+		return getBooleanValue(element);
+	}
+
+	/** Get the boolean value of this editor. */
+	protected abstract Boolean getBooleanValue(Object element);
+
+	/** {@inheritDoc} */
+	@Override
+	protected final void setValue(Object element, Object value) {
+		if (value instanceof Boolean) {
+			setBooleanValue(element, (Boolean) value);
+			getViewer().update(element, null);
+		}
+	}
+
+	/** Sets the boolean value to the model. */
+	protected abstract void setBooleanValue(Object element, Boolean value);
+}

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/checkboxtablecell/CheckBoxLabelProvider.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2011 ForTISS GmbH                     |
+|                                                                          |
+| Licensed under the Apache License, Version 2.0 (the "License");          |
+| you may not use this file except in compliance with the License.         |
+| You may obtain a copy of the License at                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| Unless required by applicable law or agreed to in writing, software      |
+| distributed under the License is distributed on an "AS IS" BASIS,        |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and      |
+| limitations under the License.                                           |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.base.ui.checkboxtablecell;
+
+import static org.eclipse.jface.resource.JFaceResources.getImageRegistry;
+import static org.eclipse.swt.SWT.CHECK;
+import static org.eclipse.swt.SWT.DEFAULT;
+import static org.eclipse.swt.SWT.NO_TRIM;
+
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.jface.viewers.ColumnLabelProvider;
+import org.eclipse.jface.viewers.ColumnViewer;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Shell;
+
+/**
+ * Checkbox label provider using checkbox button images as representation. This
+ * class supports checked and enabled state.
+ * 
+ * @author hoelzl
+ * @author $Author$
+ * @version $Rev$
+ * @ConQAT.Rating YELLOW Hash: BDA0B84E86A88AC31CFF2B2C1B367A98
+ */
+public abstract class CheckBoxLabelProvider extends ColumnLabelProvider {
+	/** {@link JFaceResources} id for checked image. */
+	private static final String CHECKED_KEY = "CHECKED";
+
+	/** {@link JFaceResources} id for unchecked image. */
+	private static final String UNCHECKED_KEY = "UNCHECKED";
+
+	/** {@link JFaceResources} id for disabled, unchecked image. */
+	private static final String DISABLED_UNCHECKED_KEY = "DISABLED_UNCHECKED";
+
+	/** {@link JFaceResources} id for disabled, checked image. */
+	private static final String DISABLED_CHECKED_KEY = "DISABLED_CHECKED";
+
+	/** Constructor. */
+	public CheckBoxLabelProvider(ColumnViewer viewer) {
+		if (getImageRegistry().getDescriptor(CHECKED_KEY) == null) {
+			getImageRegistry().put(UNCHECKED_KEY,
+					makeShot(viewer.getControl().getShell(), false, true));
+			getImageRegistry().put(CHECKED_KEY,
+					makeShot(viewer.getControl().getShell(), true, true));
+			getImageRegistry().put(DISABLED_UNCHECKED_KEY,
+					makeShot(viewer.getControl().getShell(), false, false));
+			getImageRegistry().put(DISABLED_CHECKED_KEY,
+					makeShot(viewer.getControl().getShell(), true, false));
+		}
+	}
+
+	/** Creates an image of checkbox SWT control. */
+	private Image makeShot(Shell shell, boolean checked, boolean enabled) {
+		Shell s = new Shell(shell, NO_TRIM);
+		Button b = new Button(s, CHECK);
+		b.setSelection(checked);
+		b.setEnabled(enabled);
+		Point bsize = b.computeSize(DEFAULT, DEFAULT);
+		b.setSize(bsize);
+		b.setLocation(0, 0);
+		s.setSize(bsize);
+		s.open();
+
+		GC gc = new GC(b);
+		Image image = new Image(shell.getDisplay(), bsize.x, bsize.y);
+		gc.copyArea(image, 0, 0);
+		gc.dispose();
+		s.close();
+		return image;
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public Image getImage(Object element) {
+		if (isEnabled(element)) {
+			if (isChecked(element)) {
+				return getImageRegistry().get(CHECKED_KEY);
+			}
+			return getImageRegistry().get(UNCHECKED_KEY);
+		}
+		if (isChecked(element)) {
+			return getImageRegistry().get(DISABLED_CHECKED_KEY);
+		}
+		return getImageRegistry().get(DISABLED_UNCHECKED_KEY);
+
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public String getText(Object element) {
+		return "";
+	}
+
+	/** Tests the model objects checked state. */
+	protected abstract boolean isChecked(Object element);
+
+	/** Tests the model objects enabled state. */
+	protected abstract boolean isEnabled(Object element);
+}
\ No newline at end of file