diff options
Diffstat (limited to 'plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/propertyeditor/RadioBoxPropertyEditor.java')
| -rw-r--r-- | plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/propertyeditor/RadioBoxPropertyEditor.java | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/propertyeditor/RadioBoxPropertyEditor.java b/plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/propertyeditor/RadioBoxPropertyEditor.java new file mode 100644 index 00000000000..df663a61b6e --- /dev/null +++ b/plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/propertyeditor/RadioBoxPropertyEditor.java @@ -0,0 +1,236 @@ +/*****************************************************************************
+ * 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:
+ * Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
+ *****************************************************************************/
+package org.eclipse.papyrus.properties.runtime.propertyeditor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.papyrus.properties.runtime.Activator;
+import org.eclipse.papyrus.properties.runtime.propertyeditor.descriptor.IBoundedValuesPropertyEditorDescriptor;
+import org.eclipse.papyrus.properties.runtime.propertyeditor.descriptor.IPropertyEditorDescriptor;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+
+
+/**
+ * Property editors for enumeration
+ */
+public class RadioBoxPropertyEditor extends AbstractPropertyEditor {
+
+ /** id of this editor */
+ public static final String ID = "org.eclipse.papyrus.properties.runtime.radioBoxPropertyEditor";
+
+ /** main composite created by this property editor */
+ protected Composite composite;
+
+ /** list of available elements */
+ protected List<String> values = new ArrayList<String>();
+
+ /** list of radio buttons */
+ protected List<Button> buttons = new ArrayList<Button>();
+
+ /** listener for the radio buttons */
+ protected SelectionListener listener = new RadioButtonListener();
+
+ /**
+ * Creates a new RadioBoxPropertyEditor
+ */
+ public RadioBoxPropertyEditor() {
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public Composite createContent(Composite parent) {
+ composite = getWidgetFactory().createComposite(parent, SWT.NONE);
+ int columnNu = getColumnNumber();
+ GridLayout layout = new GridLayout(columnNu, false);
+ layout.marginHeight = 0;
+ layout.marginWidth = 0;
+ composite.setLayout(layout);
+ GridData data = new GridData(SWT.FILL, SWT.FILL, true, false);
+ composite.setLayoutData(data);
+
+ if((getDescriptor().getLabelPosition() & (SWT.LEFT | SWT.TOP)) != 0) {
+ createLabel(composite);
+ }
+
+ // create the set of radio-boxes. Does not know the size of the grid used for this editor
+ for(String value : values) {
+ Button button = getWidgetFactory().createButton(composite, (!value.equals("") ? value : "<Unset>"), SWT.RADIO);
+ if(!getIsReadOnly()) {
+ button.setEnabled(true);
+ button.addSelectionListener(listener);
+ } else {
+ button.setEnabled(false);
+ }
+ buttons.add(button);
+ button.setToolTipText(getTooltipText());
+ }
+
+ if((getDescriptor().getLabelPosition() & (SWT.RIGHT | SWT.BOTTOM)) != 0) {
+ createLabel(composite);
+ }
+
+ return composite;
+ }
+
+ /**
+ * Returns the number of column for the composite
+ *
+ * @return the number of column for the composite
+ */
+ protected int getColumnNumber() {
+ return values.size() + ((((getDescriptor().getLabelPosition() & SWT.RIGHT | SWT.LEFT)) != 0) ? 1 : 0);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void dispose() {
+ if(isValid(composite)) {
+ composite.dispose();
+ composite = null;
+ buttons.clear();
+ listener = null;
+ setController(null);
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean isDisposed() {
+ if(composite == null) {
+ return true;
+ }
+ return composite.isDisposed();
+ }
+
+ /**
+ * Returns the current String value or <code>null</code> if no elements were selected
+ */
+ @Override
+ public Object getValue() {
+ if(isValid(buttons)) {
+ for(Button button : buttons) {
+ // check if the button is selected
+ if(button.getSelection()) {
+ // returns the value in the list at the same index of the index of the button in the list of buttons
+ return values.get(buttons.indexOf(button));
+ }
+ }
+ } else {
+ Activator.log.error("trying to read the value of the combo whereas the combo is disposed", null);
+ }
+ return null;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void handleContentChanged() {
+ // this should tells the controller that the input has to be applied to the model
+ getController().updateModel();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public IStatus init(IPropertyEditorDescriptor descriptor) {
+ setDescriptor(descriptor);
+ setTooltipText(descriptor.getTooltipText());
+ if(descriptor instanceof IBoundedValuesPropertyEditorDescriptor) {
+ if(((IBoundedValuesPropertyEditorDescriptor)descriptor).getAvailableValues() != null) {
+ for(Object object : ((IBoundedValuesPropertyEditorDescriptor)descriptor).getAvailableValues()) {
+ this.values.add(object.toString());
+ }
+ }
+ return Status.OK_STATUS;
+ }
+ return new Status(IStatus.ERROR, Activator.ID, "Impossible to initialize the editor using descriptor :" + descriptor);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void setValue(Object valueToEdit) {
+ if(!isValid(buttons)) {
+ return;
+ }
+ if(valueToEdit instanceof String) {
+ String newValue = (String)valueToEdit;
+ int index = values.indexOf(newValue);
+ if(index >= 0) {
+ // force all to not selected. Prefer to set all to false, then the right one to true.
+ // this should be faster than testing for each button
+ for(Button button : buttons) {
+ button.setSelection(false);
+ }
+
+ // select only the right one
+ buttons.get(index).setSelection(true);
+ } else {
+ Activator.log.error("Impossible to get the value " + valueToEdit + " in the list of available values", null);
+ }
+ }
+ }
+
+ /**
+ * Returns <code>true</code> if the list is not <code>null</code> neither empty and buttons inside list are not <code>null</code>.
+ *
+ * @param buttons
+ * the list of buttons to test
+ * @return <code>true</code> if the list is not <code>null</code> neither empty and buttons inside list are not <code>null</code>.
+ */
+ protected boolean isValid(List<Button> buttons) {
+ return buttons != null && !buttons.isEmpty() && !(buttons.get(0).isDisposed());
+ }
+
+ /**
+ * Selection Listener for a list of radio buttons
+ */
+ protected class RadioButtonListener implements SelectionListener {
+
+ /**
+ * {@inheritDoc}
+ */
+ public void widgetSelected(SelectionEvent e) {
+ for(Button button : buttons) {
+ button.setSelection(false);
+ }
+ ((Button)e.widget).setSelection(true);
+ handleContentChanged();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public void widgetDefaultSelected(SelectionEvent e) {
+
+ }
+ }
+
+}
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