Example1.java

/* ******************************************************************************
 * Copyright (c) 2014 - 2015 Fabian Prasser.
 * 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:
 *     Fabian Prasser - initial API and implementation
 ******************************************************************************/

package de.linearbits.swt.examples;

import java.text.DecimalFormat;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import de.linearbits.swt.widgets.Knob;
import de.linearbits.swt.widgets.KnobColorProfile;
import de.linearbits.swt.widgets.KnobDialogProfile;
import de.linearbits.swt.widgets.KnobRange;

/**
 * A class with examples for using SWTKnob
 * 
 * @author Fabian Prasser
 */
public class Example1 {

    /**
     * Main entry point
     * @param args
     */
    public static void main(String[] args) {
        main(null, args);
    }

    /**
     * Main entry point
     * @param display
     * @param args
     */
    public static void main(Display display, String[] args) {

        // Create display and shell
        boolean dispose = display != null;
        if (!dispose) {
            display = new Display();            
        } 
        Shell shell = new Shell(display);
        shell.setText("SWT");
        shell.setSize(230, 500);
        shell.setLayout(new GridLayout(1, false));
        
        // Create profiles
        KnobColorProfile defaultColorProfile = KnobColorProfile.createDefaultBlueRedProfile();
        KnobColorProfile focusedColorProfile = KnobColorProfile.createFocusedBlueRedProfile();
        KnobDialogProfile dialogProfile = KnobDialogProfile.createEnglishProfile().setFormatter(new DecimalFormat("0.00000"));

        // Create Knob
        final Knob<Double> knob = new Knob<Double>(shell, SWT.NULL, new KnobRange.Double(0d, 1d));
        GridData data = new GridData();
        data.heightHint = 200;
        data.widthHint = 200;
        knob.setLayoutData(data);
        knob.setDefaultColorProfile(defaultColorProfile);
        knob.setFocusedColorProfile(focusedColorProfile);
        knob.setDialogProfile(dialogProfile);

        // Create Knob
        final Knob<Integer> knob0 = new Knob<Integer>(shell, SWT.NULL, new KnobRange.Integer(1, 20));
        GridData data0 = new GridData();
        data0.heightHint = 100;
        data0.widthHint = 100;
        knob0.setLayoutData(data0);
        knob0.setDefaultColorProfile(defaultColorProfile);
        knob0.setFocusedColorProfile(focusedColorProfile);
        knob0.setDialogProfile(dialogProfile);

        // Create Knob
        final Knob<Long> knob1 = new Knob<Long>(shell, SWT.NULL, new KnobRange.Long(1l, 20l));
        GridData data1 = new GridData();
        data1.heightHint = 50;
        data1.widthHint = 50;
        knob1.setLayoutData(data1);
        knob1.setDefaultColorProfile(defaultColorProfile);
        knob1.setFocusedColorProfile(focusedColorProfile);
        knob1.setDialogProfile(dialogProfile);

        // Create Knob
        Knob<Character> knob2 = new Knob<Character>(shell, SWT.NULL, new KnobRange.Character());
        GridData data2 = new GridData();
        data2.heightHint = 30;
        data2.widthHint = 30;
        knob2.setLayoutData(data2);
        knob2.setDefaultColorProfile(defaultColorProfile);
        knob2.setFocusedColorProfile(focusedColorProfile);
        knob2.setDialogProfile(dialogProfile);

        // Create Knob
        Knob<Float> knob3 = new Knob<Float>(shell, SWT.NULL, new KnobRange.Float(0f, 1f));
        GridData data3 = new GridData();
        data3.heightHint = 23;
        data3.widthHint = 23;
        knob3.setLayoutData(data3);
        knob3.setDefaultColorProfile(defaultColorProfile);
        knob3.setFocusedColorProfile(focusedColorProfile);
        knob3.setDialogProfile(dialogProfile);

        // Create Knob
        Knob<Integer> knob4 = new Knob<Integer>(shell, SWT.NULL, new KnobRange.Integer(0, 9999));
        GridData data4 = new GridData();
        data4.heightHint = 10;
        data4.widthHint = 10;
        knob4.setLayoutData(data4);
        knob4.setDefaultColorProfile(defaultColorProfile);
        knob4.setFocusedColorProfile(focusedColorProfile);
        knob4.setDialogProfile(dialogProfile);

        // Bind knob0 with knob1
        knob1.addSelectionListener(new SelectionAdapter(){
            @Override
            public void widgetSelected(SelectionEvent arg0) {
                knob0.setValue(knob1.getValue().intValue());
            }
        });
        knob0.addSelectionListener(new SelectionAdapter(){
            @Override
            public void widgetSelected(SelectionEvent arg0) {
                knob1.setValue((long)knob0.getValue());
            }
        });

        // Focus list
        shell.setTabList(new Control[]{knob, knob0, knob1, knob2, knob3, knob4});

        // Open
        shell.open();
        
        if (dispose) {
            shell.dispose();
        }

        // Event loop
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) display.sleep();
        }
        
        // Dispose profiles
        defaultColorProfile.dispose();
        focusedColorProfile.dispose();
    }
    
    public static void dispose() {
        
    }
}