org.eclipse.gmf.runtime.diagram.ui.printing.render.dialogs.QualityBlock.java Source code

Introduction

Here is the source code for org.eclipse.gmf.runtime.diagram.ui.printing.render.dialogs.QualityBlock.java

Source

/******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * 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
 *
 * Contributors:
 *    IBM Corporation - initial API and implementation 
 ****************************************************************************/

package org.eclipse.gmf.runtime.diagram.ui.printing.render.dialogs;

import org.eclipse.core.databinding.Binding;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.gmf.runtime.diagram.ui.printing.internal.l10n.DiagramUIPrintingMessages;
import org.eclipse.gmf.runtime.diagram.ui.printing.render.model.PrintOptions;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

/**
 * A section of the options print dialog that handles the print quality.
 * 
 * @author James Bruck (jbruck)
 */
public class QualityBlock extends DialogBlock {

    private final DataBindingContext bindings;
    private final PrintOptions options;

    private Binding qualityHighBinding;
    private Binding qualityMedBinding;
    private Binding qualityLowBinding;

    QualityBlock(IDialogUnitConverter dluConverter, DataBindingContext bindings, PrintOptions options) {
        super(dluConverter);

        this.bindings = bindings;
        this.options = options;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.gmf.runtime.common.ui.printing.internal.dialogs.DialogBlock#createContents(org.eclipse.swt.widgets.Composite)
     */
    public Control createContents(Composite parent) {
        final Realm realm = bindings.getValidationRealm();

        Composite result = group(parent, DiagramUIPrintingMessages.JPSOptionsDialog_Quality);
        layout(result, 2);

        Button highRadio = radio(result, DiagramUIPrintingMessages.JPSOptionsDialog_QualityHigh);
        layoutSpanHorizontal(highRadio, 4);

        Button mediumRadio = radio(result, DiagramUIPrintingMessages.JPSOptionsDialog_QualityMedium);
        layoutSpanHorizontal(mediumRadio, 4);

        Button lowRadio = radio(result, DiagramUIPrintingMessages.JPSOptionsDialog_QualityLow);
        layoutSpanHorizontal(lowRadio, 4);

        qualityHighBinding = bindings.bindValue(SWTObservables.observeSelection(highRadio),
                BeansObservables.observeValue(realm, options, PrintOptions.PROPERTY_QUALITY_HIGH), null, null);

        qualityMedBinding = bindings.bindValue(SWTObservables.observeSelection(mediumRadio),
                BeansObservables.observeValue(realm, options, PrintOptions.PROPERTY_QUALITY_MED), null, null);

        qualityLowBinding = bindings.bindValue(SWTObservables.observeSelection(lowRadio),
                BeansObservables.observeValue(realm, options, PrintOptions.PROPERTY_QUALITY_LOW), null, null);

        return result;
    }

    @Override
    public void dispose() {
        bindings.removeBinding(qualityHighBinding);
        qualityHighBinding.dispose();
        bindings.removeBinding(qualityLowBinding);
        qualityLowBinding.dispose();
        bindings.removeBinding(qualityMedBinding);
        qualityMedBinding.dispose();
    }
}