diff options
Diffstat (limited to 'plugins/core/org.eclipse.papyrus.editors/src/org/eclipse/papyrus/editors/AbstractValueEditor.java')
| -rw-r--r-- | plugins/core/org.eclipse.papyrus.editors/src/org/eclipse/papyrus/editors/AbstractValueEditor.java | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/plugins/core/org.eclipse.papyrus.editors/src/org/eclipse/papyrus/editors/AbstractValueEditor.java b/plugins/core/org.eclipse.papyrus.editors/src/org/eclipse/papyrus/editors/AbstractValueEditor.java new file mode 100644 index 00000000000..79b04fbc900 --- /dev/null +++ b/plugins/core/org.eclipse.papyrus.editors/src/org/eclipse/papyrus/editors/AbstractValueEditor.java @@ -0,0 +1,153 @@ +/*****************************************************************************
+ * Copyright (c) 2010 CEA LIST.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
+ *****************************************************************************/
+package org.eclipse.papyrus.editors;
+
+import org.eclipse.core.databinding.UpdateValueStrategy;
+import org.eclipse.core.databinding.conversion.IConverter;
+import org.eclipse.core.databinding.observable.value.IObservableValue;
+import org.eclipse.swt.widgets.Composite;
+
+
+public abstract class AbstractValueEditor extends AbstractEditor {
+
+ /**
+ * The IObservableValue associated to the model property
+ */
+ protected IObservableValue modelProperty;
+
+ /**
+ * The IObservableValue associated to the widget
+ */
+ protected IObservableValue widgetObservable;
+
+ /**
+ * The UpdateStrategy for binding data from widget to model
+ */
+ protected UpdateValueStrategy targetToModelStrategy;
+
+ /**
+ * The UpdateStrategy for binding data from model to widget
+ */
+ protected UpdateValueStrategy modelToTargetStrategy;
+
+ /**
+ * {@inheritDoc}
+ */
+ public AbstractValueEditor(Composite parent) {
+ super(parent);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public AbstractValueEditor(Composite parent, int style, String label) {
+ super(parent, style, label);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public AbstractValueEditor(Composite parent, int style) {
+ super(parent, style);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public AbstractValueEditor(Composite parent, String label) {
+ super(parent, label);
+ }
+
+ /**
+ * Sets this editor's IObservableValue associated to the widget property
+ *
+ * @param widgetObservable
+ * @param targetToModel
+ * the IConverter to convert data from Widget to Model
+ * @param modelToTarget
+ * the IConverter to convert data from Model to Widget
+ */
+ protected void setWidgetObservable(IObservableValue widgetObservable, IConverter targetToModel, IConverter modelToTarget) {
+ this.widgetObservable = widgetObservable;
+ setConverters(targetToModel, modelToTarget);
+ }
+
+ /**
+ * Sets this editor's IObservableValue associated to the widget property
+ *
+ * @param widgetObservable
+ */
+ protected void setWidgetObservable(IObservableValue widgetObservable) {
+ this.widgetObservable = widgetObservable;
+ }
+
+ /**
+ * Sets this editor's IObservableValue associated to the model property,
+ * and binds it to the Editor's Widget
+ *
+ * @param modelProperty
+ */
+ public void setModelObservable(IObservableValue modelProperty) {
+ this.modelProperty = modelProperty;
+ doBinding();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void setConverters(IConverter targetToModel, IConverter modelToTarget) {
+ if(targetToModelStrategy == null) {
+ targetToModelStrategy = new UpdateValueStrategy();
+ }
+ if(modelToTargetStrategy == null) {
+ modelToTargetStrategy = new UpdateValueStrategy();
+ }
+
+ targetToModelStrategy.setConverter(targetToModel);
+ modelToTargetStrategy.setConverter(modelToTarget);
+ }
+
+ /**
+ * Sets the UpdateStrategies for databinding between the widget and the model
+ *
+ * @param targetToModelStrategy
+ * The widget to model Update strategy
+ * @param modelToTargetStrategy
+ * The model to widget Update strategy
+ */
+ public void setUpdateStrategies(UpdateValueStrategy targetToModelStrategy, UpdateValueStrategy modelToTargetStrategy) {
+ this.targetToModelStrategy = targetToModelStrategy;
+ this.modelToTargetStrategy = modelToTargetStrategy;
+ }
+
+ /**
+ * Binds the Widget Observable to the Model observable property,
+ * using the specified converters or Update strategies when available
+ *
+ * @see org.eclipse.papyrus.editors.AbstractEditor#doBinding()
+ */
+ @Override
+ protected void doBinding() {
+
+ if(modelProperty == null || widgetObservable == null)
+ return;
+
+ getBindingContext().bindValue(widgetObservable, modelProperty, targetToModelStrategy, modelToTargetStrategy);
+ }
+
+ /**
+ * Returns the value from the widget
+ * May be used even when the Model Observable is not set
+ */
+ public abstract Object getValue();
+}
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