org.eclipse.birt.report.extension.barcode.views.BarCodeGeneralPage.java Source code

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Here is the source code for org.eclipse.birt.report.extension.barcode.views.BarCodeGeneralPage.java

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/*******************************************************************************
 * Copyright (c) 2007 Actuate Corporation.
 * 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:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

package org.eclipse.birt.report.extension.barcode.views;

import org.eclipse.birt.report.extension.barcode.BarCodeItem;
import org.eclipse.birt.report.extension.barcode.util.BarCodeGenerator;
import org.eclipse.birt.report.extension.common.views.CommonGeneralPage;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;

/**
 * RotatedTextGeneralPage
 */
public class BarCodeGeneralPage extends CommonGeneralPage {
    private Text txtText;
    private ComboViewer barCodeType;

    @Override
    protected void createControl(Composite parent) {
        txtText = addExpressionField(parent, "Text Content:", BarCodeItem.BAR_CODE_PROP);
        barCodeType = addComboField(parent, "Bar Code Type:", BarCodeItem.BAR_CODE_TYPE_PROP);
    }

    private ComboViewer addComboField(Composite parent, String string, final String propName) {
        toolkit.createLabel(parent, string);
        ComboViewer viewer = new ComboViewer(parent, SWT.FLAT | SWT.READ_ONLY);
        viewer.setContentProvider(ArrayContentProvider.getInstance());
        viewer.setLabelProvider(new LabelProvider() {
            @Override
            public String getText(Object element) {
                return ((BarCodeGenerator) element).getLabel();
            }
        });
        viewer.setInput(BarCodeGenerator.values());
        viewer.addSelectionChangedListener(new ISelectionChangedListener() {
            @Override
            public void selectionChanged(SelectionChangedEvent event) {
                updateModel(propName);
            }
        });
        toolkit.createLabel(parent, "");
        return viewer;
    }

    @Override
    protected void updateModel(String prop) {
        BarCodeItem item = (BarCodeItem) getItem();

        if (item != null) {
            try {
                if (BarCodeItem.BAR_CODE_TYPE_PROP.equals(prop)) {
                    item.setBarCodeType((BarCodeGenerator) ((IStructuredSelection) barCodeType.getSelection())
                            .getFirstElement());
                } else if (BarCodeItem.BAR_CODE_PROP.equals(prop)) {
                    item.setBarCode(txtText.getText());
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    @Override
    protected void updateUI() {
        BarCodeItem item = (BarCodeItem) getItem();

        if (item != null) {
            String text = item.getBarCode();
            txtText.setText(text == null ? "" : text); //$NON-NLS-1$
            barCodeType.setSelection(new StructuredSelection(item.getBarCodeType()));
        }
    }
}