TabItem.java

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 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2016 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * 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.
 *
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package org.pentaho.xul.swt.tab;

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

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

public class TabItem {

  private TabSet tabset;
  private CTabItem item;
  private String id;
  private String text;
  private Object control;
  private int[] sashWeights;
  private boolean changed;
  private List<TabListener> listeners = new ArrayList<TabListener>();

  public TabItem( TabSet tabset, String text, String id, int[] sashWeights ) {
    super();
    this.tabset = tabset;
    this.id = id;
    this.sashWeights = sashWeights;
    item = createTabItem( tabset );
    setText( text );
    tabset.addTab( this );
  }

  public CTabItem getSwtTabItem() {
    return item;
  }

  public String getText() {
    return text;
  }

  public Object getControl() {
    return control;
  }

  public void setControl( Control control ) {
    this.control = control;
    item.setControl( control );
  }

  public String getId() {
    return id;
  }

  public void setId( String id ) {
    this.id = id;
  }

  public TabSet getTabset() {
    return tabset;
  }

  public void setTabset( TabSet tabset ) {
    this.tabset = tabset;
  }

  public void setText( String text ) {
    this.text = text;
    item.setText( text );
  }

  public boolean isDisposed() {
    return item.isDisposed();
  }

  public void dispose() {
    if ( !isDisposed() ) {
      if ( control instanceof Composite ) {
        ( (Composite) control ).dispose();
      }
      item.dispose();
      tabset.remove( this );
    }
  }

  public void setToolTipText( String tip ) {
    item.setToolTipText( tip );
  }

  public void setImage( Image image ) {
    item.setImage( image );
  }

  public void setChanged( boolean changed ) {
    this.changed = changed;
    if ( changed && tabset.getChangedFont() != null ) {
      item.setFont( tabset.getChangedFont() );
    } else if ( !changed && tabset.getUnchangedFont() != null ) {
      item.setFont( tabset.getUnchangedFont() );
    }
  }

  public void addListener( TabListener listener ) {
    listeners.add( listener );
  }

  public void removeListener( TabListener listener ) {
    listeners.remove( listener );
  }

  public void notifySelectListeners() {
    for ( int i = 0; i < listeners.size(); i++ ) {
      ( listeners.get( i ) ).tabSelected( this );
    }
  }

  public void notifyDeselectListeners() {
    for ( int i = 0; i < listeners.size(); i++ ) {
      ( listeners.get( i ) ).tabDeselected( this );
    }
  }

  public boolean notifyCloseListeners() {
    boolean doit = true;
    for ( int i = 0; i < listeners.size(); i++ ) {
      doit &= ( listeners.get( i ) ).tabClose( this );
    }
    return doit;
  }

  public boolean isChanged() {
    return changed;
  }

  protected CTabItem createTabItem( TabSet tabset ) {
    return new CTabItem( tabset.getSwtTabset(), SWT.CLOSE );
  }

  public int[] getSashWeights() {
    return sashWeights;
  }

  public void setSashWeights( int[] guiSizes ) {
    this.sashWeights = guiSizes;
  }
}