/*
* 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.schemaeditor.view.views;
import org.apache.directory.shared.ldap.schema.SchemaObject;
import org.apache.directory.studio.schemaeditor.Activator;
import org.apache.directory.studio.schemaeditor.PluginConstants;
import org.apache.directory.studio.schemaeditor.controller.HierarchyViewController;
import org.apache.directory.studio.schemaeditor.model.AttributeTypeImpl;
import org.apache.directory.studio.schemaeditor.model.ObjectClassImpl;
import org.apache.directory.studio.schemaeditor.view.ViewUtils;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.osgi.util.NLS;
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.Label;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;
/**
* This class implements the Hierarchy View.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class HierarchyView extends ViewPart
{
/** The view's ID */
public static final String ID = PluginConstants.VIEW_HIERARCHY_VIEW_ID;
/** The tree viewer */
private TreeViewer viewer;
/** The controller */
private HierarchyViewController controller;
/** The Overview label */
private Label overviewLabel;
/* (non-Javadoc)
* @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
*/
public void createPartControl( Composite parent )
{
GridLayout gridLayout = new GridLayout();
gridLayout.horizontalSpacing = 0;
gridLayout.marginBottom = 0;
gridLayout.marginHeight = 0;
gridLayout.marginLeft = 0;
gridLayout.marginRight = 0;
gridLayout.marginTop = 0;
gridLayout.marginWidth = 0;
gridLayout.verticalSpacing = 0;
parent.setLayout( gridLayout );
// Overview Label
overviewLabel = new Label( parent, SWT.WRAP );
overviewLabel.setText( "" ); //$NON-NLS-1$
overviewLabel.setLayoutData( new GridData( SWT.FILL, SWT.NONE, true, false ) );
// Separator Label
Label separatorLabel = new Label( parent, SWT.SEPARATOR | SWT.HORIZONTAL );
separatorLabel.setLayoutData( new GridData( SWT.FILL, SWT.NONE, true, false ) );
initViewer( parent );
controller = new HierarchyViewController( this );
// Help Context for Dynamic Help
PlatformUI.getWorkbench().getHelpSystem().setHelp( parent, PluginConstants.PLUGIN_ID + "." + "hierarchy_view" ); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Initializes the Viewer
*
* @param parent
* the parent Composite
*/
private void initViewer( Composite parent )
{
viewer = new TreeViewer( parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL );
viewer.setContentProvider( new HierarchyViewContentProvider() );
viewer.setLabelProvider( new DecoratingLabelProvider( new HierarchyViewLabelProvider( viewer ), Activator
.getDefault().getWorkbench().getDecoratorManager().getLabelDecorator() ) );
viewer.getTree().setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, true ) );
viewer.getTree().setEnabled( false );
}
/* (non-Javadoc)
* @see org.eclipse.ui.part.WorkbenchPart#setFocus()
*/
public void setFocus()
{
viewer.getControl().setFocus();
}
/**
* Gets the TreeViewer
*
* @return
* the TreeViewer
*/
public TreeViewer getViewer()
{
return viewer;
}
/**
* Refreshes the viewer.
*/
public void refresh()
{
viewer.refresh();
viewer.expandAll();
}
public void setInput( Object input )
{
viewer.setInput( input );
viewer.expandAll();
if ( input == null )
{
overviewLabel.setText( "" ); //$NON-NLS-1$
}
else
{
if ( input instanceof AttributeTypeImpl )
{
setOverviewLabel( ( AttributeTypeImpl ) input );
}
else if ( input instanceof ObjectClassImpl )
{
setOverviewLabel( ( ObjectClassImpl ) input );
}
else
{
overviewLabel.setText( "" ); //$NON-NLS-1$
}
}
}
/**
* Set the overview label for the given schema object.
*
* @param object
* the schema object
*/
private void setOverviewLabel( SchemaObject object )
{
StringBuffer sb = new StringBuffer();
String[] names = object.getNamesRef();
if ( ( names != null ) && ( names.length > 0 ) )
{
sb.append( ViewUtils.concateAliases( names ) );
}
else
{
sb.append( Messages.getString( "HierarchyView.None" ) ); //$NON-NLS-1$
}
sb.append( NLS.bind(
Messages.getString( "HierarchyView.Schema" ), new String[] { object.getOid(), object.getSchema() } ) ); //$NON-NLS-1$
overviewLabel.setText( sb.toString() );
}
/* (non-Javadoc)
* @see org.eclipse.ui.part.WorkbenchPart#dispose()
*/
public void dispose()
{
controller.dispose();
super.dispose();
}
}