JobStatusComposite.java example

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eu.geclipse.core-master
/******************************************************************************
 * Copyright (c) 2007, 2008 g-Eclipse consortium 
 * 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
 *
 * Initial development of the original code was made for
 * project g-Eclipse founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributor(s):
 *     Mariusz Wojtysiak - initial API and implementation
 *     
 *****************************************************************************/

package eu.geclipse.ui.internal.dialogs.configureFilters;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;

import eu.geclipse.core.model.IGridJobStatus;
import eu.geclipse.ui.views.filters.IGridFilterConfiguration;
import eu.geclipse.ui.views.filters.JobStatusFilter;
import eu.geclipse.ui.views.filters.JobViewFilterConfiguration;


/**
 * Composite to edit {@link JobStatusFilter}
 */
public class JobStatusComposite implements IFilterComposite {

  private JobStatusFilter filter;
  private List<StatusOption> optionsList = new ArrayList<StatusOption>();
  private Group topGroup;
  private boolean enabled = true;

  /**
   * @param filter edited filter
   * @param parent
   */
  public JobStatusComposite( final JobStatusFilter filter,
                             final Composite parent )
  {
    this.filter = filter;
    this.topGroup = new Group( parent, SWT.NONE );
    GridLayout layout = new GridLayout( 1, false );
    this.topGroup.setLayout( layout );
    this.topGroup.setLayoutData( new GridData( SWT.FILL, SWT.TOP, false, false ) );
    Label label = new Label( this.topGroup, SWT.NONE );
    label.setText( Messages.getString( "JobStatusComposite.Description" ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.submitted" ), IGridJobStatus.SUBMITTED ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.waiting" ), IGridJobStatus.WAITING ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.running" ), IGridJobStatus.RUNNING ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.done" ), IGridJobStatus.DONE ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.aborted" ), IGridJobStatus.ABORTED ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.purged" ), IGridJobStatus.PURGED ) ); //$NON-NLS-1$
    this.optionsList.add( new StatusOption( this.topGroup,
                                            Messages.getString( "JobStatusComposite.others" ), IGridJobStatus.UNKNOWN ) ); //$NON-NLS-1$
    refresh();
  }
  
  private static class StatusOption {

    private int statusValue;
    private Button checkbox;

    StatusOption( final Composite parent,
                  final String descriptionString,
                  final int statusValue )
    {
      this.statusValue = statusValue;
      this.checkbox = new Button( parent, SWT.CHECK );
      this.checkbox.setText( descriptionString );
    }

    void setSelected( final boolean selected ) {
      this.checkbox.setSelection( selected );
    }

    boolean isSelected() {
      return this.checkbox.getSelection();
    }

    void enable( final boolean enable ) {
      this.checkbox.setEnabled( enable );
    }

    int getStatusValue() {
      return this.statusValue;
    }

    void setEnabled( final boolean enabled ) {
      this.checkbox.setEnabled( enabled );
    }
  }

  public boolean saveToFilter() {
    if( this.filter != null ) {
      for( StatusOption option : this.optionsList ) {
        this.filter.setStatusState( option.getStatusValue(),
                                    option.isSelected() );
      }
    }
    return true;
  }

  public void setFilter( final IGridFilterConfiguration filterConfiguration ) {
    this.filter = filterConfiguration == null 
        ? null
        : ( ( JobViewFilterConfiguration )filterConfiguration ).getJobStatusFilter();
    
    refresh();
  }

  private void refresh() {
    if( this.filter != null ) {
      for( StatusOption option : this.optionsList ) {
        option.setSelected( this.filter.getStatusState( option.getStatusValue() ) );
      }
      onChangeEnabledState();
    }
  }

  public void setEnabled( final boolean enabled ) {
    this.enabled = enabled;
    onChangeEnabledState();
  }

  void onChangeEnabledState() {
    for( StatusOption option : this.optionsList ) {
      option.setEnabled( this.enabled );
    }
  }
}