plugins/org.eclipse.app4mc.amalthea.generator.ui/src/org/eclipse/app4mc/amalthea/generator/ui/ExportPage.java

/**
 * *******************************************************************************
 *  Copyright (c) 2017 Timing-Architects Embedded Systems GmbH 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:
 *     Timing-Architects Embedded Systems GmbH - initial API and implementation
 *
 * *******************************************************************************
 */
package org.eclipse.app4mc.amalthea.generator.ui;

import java.io.File;

import org.eclipse.jface.wizard.WizardPage;
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.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;

public class ExportPage extends WizardPage implements Listener {

	private Combo combo;
	private Button browseButton;
	private Button exportButton;
	private File file = null;
	private boolean export = false;
	
	protected ExportPage() {
		super("Export");
		setTitle("Export");
        setDescription("Export settings to a configuration file");
	}
	
	public boolean doExport() {
		return this.export;
	}
	
	public void setFile(File file) {
		this.file = file;
		if(null != file) {
			this.combo.setText(file.getAbsolutePath());
		} else {
			this.combo.setText("");
		}
	}
	
	public File getFile() {
		return this.file;
	}

	@Override
	public void createControl(Composite parent) {
		Composite container = new Composite(parent, SWT.NONE);
	    GridLayout layout = new GridLayout();
	    container.setLayout(layout);
	    layout.numColumns = 3;
	    
	    exportButton = new Button(container, SWT.CHECK);
	    exportButton.setSelection(this.export);
	    exportButton.addListener(SWT.Selection, this);
	    
	    Label label = new Label(container, SWT.NONE);
	    label.setText("Enable Export");
	    GridData gridData = new GridData(GridData.FILL, GridData.CENTER, true, false);
	    gridData.horizontalSpan = 2;
	    label.setLayoutData(gridData);
	    
	    label = new Label(container, SWT.NONE);
	    label.setText("To file: ");
	    
	    this.combo = new Combo(container, SWT.NONE);
	    combo.setText("");
	    combo.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
	    combo.setEnabled(this.export);
	    
	    this.browseButton = new Button(container, SWT.NONE);
	    browseButton.setText("Browse...");
	    browseButton.addListener(SWT.Selection, this);
	    browseButton.setEnabled(this.export);
	    
	    setControl(container);
	}
	
	@Override
	public void handleEvent(Event event) {
		if(SWT.Selection == event.type) {
			if(this.browseButton == event.widget) {
				Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
	      	  	FileDialog fd = new FileDialog(shell, SWT.SAVE);
	            fd.setText("Export");
	            String[] filterExt = { "*.rtmgc", "*.*" };
	            fd.setFilterExtensions(filterExt);
	            String selected = fd.open();
	            if(null != selected) {
	            	this.combo.setText(selected);
	            	file = new File(selected);
	            }
			} else if(this.exportButton == event.widget) {
				this.export = exportButton.getSelection();
				// disable/enable controls
				this.combo.setEnabled(this.export);
				this.browseButton.setEnabled(this.export);
			}
		}
	}
}