/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.directory.studio.openldap.common.ui.widgets;
import org.apache.directory.studio.common.ui.widgets.AbstractWidget;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.forms.widgets.FormToolkit;
public class BooleanWithDefaultWidget extends AbstractWidget
{
/** The combo viewer's values */
private Object[] comboViewerValues = new Object[]
{
BooleanValue.DEFAULT,
BooleanValue.TRUE,
BooleanValue.FALSE
};
// The default value
private Boolean defaultValue;
// The value
private Boolean value;
// UI widgets
private ComboViewer comboViewer;
/**
* Creates a new instance of BooleanWithDefaultWidget.
*/
public BooleanWithDefaultWidget()
{
}
/**
* Creates a new instance of BooleanWithDefaultWidget.
*
* @param defaultValue the default value
*/
public BooleanWithDefaultWidget( boolean defaultValue )
{
this.defaultValue = defaultValue;
}
/**
* Creates a new instance of BooleanWithDefaultWidget.
*
* @param defaultValue the default value
*/
public BooleanWithDefaultWidget( Boolean defaultValue )
{
this.defaultValue = defaultValue;
}
/**
* Creates the widget.
*
* @param parent the parent composite
*/
public void create( Composite parent )
{
create( parent, null );
}
/**
* Creates the widget.
*
* @param parent the parent composite
*/
public void create( Composite parent, FormToolkit toolkit )
{
comboViewer = new ComboViewer( parent );
comboViewer.setContentProvider( new ArrayContentProvider() );
comboViewer.setLabelProvider( new LabelProvider()
{
public String getText( Object element )
{
if ( element instanceof BooleanValue )
{
BooleanValue booleanValue = ( BooleanValue ) element;
switch ( booleanValue )
{
case DEFAULT:
if ( defaultValue != null )
{
if ( defaultValue.booleanValue() )
{
return NLS.bind( "Default value ({0})", "true" );
}
else
{
return NLS.bind( "Default value ({0})", "false" );
}
}
else
{
return "Default value";
}
case TRUE:
return "True";
case FALSE:
return "False";
}
}
return super.getText( element );
}
} );
comboViewer.addSelectionChangedListener( new ISelectionChangedListener()
{
public void selectionChanged( SelectionChangedEvent event )
{
value = null;
StructuredSelection selection = ( StructuredSelection ) comboViewer.getSelection();
if ( !selection.isEmpty() )
{
BooleanValue booleanValue = ( BooleanValue ) selection.getFirstElement();
switch ( booleanValue )
{
case DEFAULT:
value = null;
break;
case TRUE:
value = new Boolean( true );
break;
case FALSE:
value = new Boolean( false );
break;
}
}
notifyListeners();
}
} );
comboViewer.setInput( comboViewerValues );
comboViewer.setSelection( new StructuredSelection( comboViewerValues[0] ) );
}
/**
* Returns the primary control associated with this widget.
*
* @return the primary control associated with this widget.
*/
public Control getControl()
{
return comboViewer.getControl();
}
/**
* Sets the value.
*
* @param s the value
*/
public void setValue( Boolean value )
{
this.value = value;
if ( value != null )
{
if ( value.booleanValue() )
{
comboViewer.setSelection( new StructuredSelection( comboViewerValues[1] ) );
}
else
{
comboViewer.setSelection( new StructuredSelection( comboViewerValues[2] ) );
}
}
else
{
comboViewer.setSelection( new StructuredSelection( comboViewerValues[0] ) );
}
}
/**
* Gets the value.
*
* @return the value
*/
public Boolean getValue()
{
return value;
}
/**
* Disposes all created SWT widgets.
*/
public void dispose()
{
if ( ( comboViewer != null ) && ( comboViewer.getControl() != null )
&& ( !comboViewer.getControl().isDisposed() ) )
{
comboViewer.getControl().dispose();
}
}
/**
* Sets the enabled state of the widget.
*
* @param enabled true to enable the widget, false to disable the widget
*/
public void setEnabled( boolean enabled )
{
if ( ( comboViewer != null ) && ( comboViewer.getControl() != null )
&& ( !comboViewer.getControl().isDisposed() ) )
{
comboViewer.getControl().setEnabled( enabled );
}
}
/**
* This enum represents the various values available.
*/
enum BooleanValue
{
DEFAULT, TRUE, FALSE
}
}