| /******************************************************************************* |
| * 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: |
| * Kentarou FUKUDA - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.actf.examples.simplevisualizer.ui.internal; |
| |
| 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.Composite; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Slider; |
| |
| public class AlphaValueToolbar extends Composite { |
| |
| private Slider alphaSlider; |
| |
| public AlphaValueToolbar(Composite parent, int style) { |
| super(parent, style); |
| initLayout(parent); |
| } |
| |
| private void initLayout(Composite parent) { |
| GridLayout gridLayout = new GridLayout(); |
| gridLayout.marginTop = 4; |
| gridLayout.marginBottom = 4; |
| gridLayout.marginHeight = gridLayout.marginWidth = 1; |
| gridLayout.numColumns = 5; |
| setLayout(gridLayout); |
| |
| GridData gridData = new GridData(); |
| gridData.horizontalSpan = 1; |
| gridData.horizontalAlignment = GridData.FILL; |
| gridData.verticalAlignment = GridData.FILL; |
| gridData.grabExcessHorizontalSpace = true; |
| gridData.grabExcessVerticalSpace = false; |
| setLayoutData(gridData); |
| |
| new Label(this, SWT.NONE).setText("alpha value:"); |
| |
| final Label valueL = new Label(this, SWT.CENTER); |
| valueL.setText("127"); //$NON-NLS-1$ |
| |
| new Label(this, SWT.NONE).setText(" 0"); //$NON-NLS-1$ |
| alphaSlider = new Slider(this, SWT.CENTER); |
| alphaSlider.setValues(128, 0, 275, 20, 1, 25); |
| alphaSlider.addSelectionListener(new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent e) { |
| valueL.setText(Integer.toString(alphaSlider.getSelection())); |
| } |
| }); |
| |
| gridData = new GridData(); |
| gridData.horizontalSpan = 1; |
| gridData.horizontalAlignment = GridData.FILL; |
| gridData.verticalAlignment = GridData.FILL; |
| gridData.grabExcessHorizontalSpace = true; |
| gridData.grabExcessVerticalSpace = true; |
| alphaSlider.setLayoutData(gridData); |
| |
| new Label(this, SWT.NONE).setText("255"); //$NON-NLS-1$ |
| |
| } |
| |
| protected int getAlpha() { |
| return alphaSlider.getSelection(); |
| } |
| |
| } |