/*
* Carrot2 project.
*
* Copyright (C) 2002-2014, Dawid Weiss, Stanisław Osiński.
* All rights reserved.
*
* Refer to the full license file "carrot2.LICENSE"
* in the root folder of the repository checkout or at:
* http://www.carrot2.org/carrot2.LICENSE
*/
package org.carrot2.workbench.editors.impl.numeric;
import java.util.Map;
import org.carrot2.workbench.core.helpers.GUIFactory;
import org.carrot2.workbench.editors.*;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
/**
* An dummy editor for read-only numerics.
*/
final class ReadOnlyEditor extends AttributeEditorAdapter
{
/** */
private Text text;
/** */
private Object lastValue;
@Override
protected AttributeEditorInfo init(Map<String,Object> defaultValues)
{
return new AttributeEditorInfo(1, false);
}
/*
* Return the current editor value.
*/
@Override
public Object getValue()
{
return lastValue;
}
@Override
public void setValue(Object object)
{
if (lastValue == object)
{
return;
}
this.lastValue = object;
this.text.setText(lastValue == null ? "(null)" : lastValue.toString());
fireAttributeChanged(new AttributeEvent(this));
}
/*
*
*/
@Override
public void createEditor(Composite parent, int gridColumns)
{
createText(parent, gridColumns);
}
/**
* Create the scale control.
*/
private void createText(Composite parent, int gridColumns)
{
final GridDataFactory factory = GUIFactory.editorGridData();
final GridData layoutData = factory.create();
layoutData.horizontalSpan = gridColumns;
layoutData.grabExcessHorizontalSpace = false;
layoutData.verticalAlignment = SWT.CENTER;
text = new Text(parent, SWT.RIGHT | SWT.SINGLE);
text.setEnabled(false);
text.setLayoutData(layoutData);
}
}