/*
* Copyright 2005 JBoss Inc
*
* 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.drools.eclipse.flow.ruleflow.view.property.variable;
import org.drools.eclipse.flow.common.datatype.DefaultDataTypeRegistry;
import org.drools.eclipse.flow.common.view.datatype.editor.DataTypeEditor;
import org.drools.eclipse.flow.common.view.datatype.editor.impl.DataTypeCombo;
import org.drools.eclipse.flow.common.view.datatype.editor.impl.DataTypeEditorComposite;
import org.drools.eclipse.flow.common.view.datatype.editor.impl.EditorComposite;
import org.drools.eclipse.flow.common.view.property.EditBeanDialog;
import org.drools.core.process.core.datatype.DataType;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.jbpm.process.core.context.variable.Variable;
/**
* Dialog for editing variables.
*/
public class VariableDialog extends EditBeanDialog<Variable> {
private Text nameText;
private DataTypeCombo dataTypeCombo;
private DataTypeEditorComposite dataTypeEditorComposite;
private EditorComposite editorComposite;
public VariableDialog(Shell parentShell) {
super(parentShell, "Edit Variable");
}
protected Control createDialogArea(Composite parent) {
final Composite composite = (Composite) super.createDialogArea(parent);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 2;
composite.setLayout(gridLayout);
Label nameLabel = new Label(composite, SWT.NONE);
nameLabel.setText("Name: ");
nameText = new Text(composite, SWT.NONE);
GridData gridData = new GridData();
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalAlignment = GridData.FILL;
nameText.setLayoutData(gridData);
String name = ((Variable) getValue()).getName();
nameText.setText(name == null ? "" : name);
Label typeLabel = new Label(composite, SWT.NONE);
typeLabel.setText("Type: ");
dataTypeCombo = new DataTypeCombo(composite,
SWT.NONE, DefaultDataTypeRegistry.getInstance());
DataType dataType = getValue().getType();
dataTypeCombo.setDataType(dataType);
dataTypeCombo.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
DataType dataType = dataTypeCombo.getDataType();
dataTypeEditorComposite.setDataType(dataType);
editorComposite.setDataType(dataType);
composite.layout();
}
});
new Label(composite, SWT.NONE);
dataTypeEditorComposite = new DataTypeEditorComposite(composite,
SWT.NONE, DefaultDataTypeRegistry.getInstance());
gridData = new GridData();
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalAlignment = GridData.FILL;
dataTypeEditorComposite.setLayoutData(gridData);
dataTypeEditorComposite.setDataType(dataType);
dataTypeEditorComposite.addListener(new DataTypeEditor.DataTypeListener() {
public void dataTypeChanged(DataType dataType) {
editorComposite.setDataType(dataType);
composite.layout();
}
});
Label valueLabel = new Label(composite, SWT.NONE);
valueLabel.setText("Value: ");
gridData = new GridData();
gridData.verticalAlignment = SWT.TOP;
valueLabel.setLayoutData(gridData);
editorComposite = new EditorComposite(composite,
SWT.NONE, DefaultDataTypeRegistry.getInstance());
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
editorComposite.setLayoutData(gridData);
editorComposite.setDataType(dataType);
editorComposite.setValue(((Variable) getValue()).getValue());
Composite bottom = new Composite(composite, SWT.NONE);
gridData = new GridData();
gridData.grabExcessVerticalSpace = true;
gridData.horizontalSpan = 2;
bottom.setLayoutData(gridData);
return composite;
}
protected Variable updateValue(Variable value) {
Variable variable = (Variable) getValue();
String name = nameText.getText();
if ("".equals(name)) {
throw new IllegalArgumentException("Name should not be empty");
}
variable.setName(name);
variable.setType(dataTypeEditorComposite.getDataType());
variable.setValue(editorComposite.getValue());
return variable;
}
}