| /* |
| * Copyright (c) 2008, 2009, 2011, 2012, 2015 Eike Stepper (Berlin, Germany) 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.net4j.util.ui.widgets; |
| |
| import org.eclipse.net4j.util.ui.UIUtil; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Label; |
| |
| /** |
| * @author Eike Stepper |
| * @since 2.0 |
| */ |
| public abstract class OneBorderComposite extends Composite |
| { |
| private static final int POSITION_MASK = SWT.LEFT | SWT.RIGHT | SWT.TOP | SWT.BOTTOM; |
| |
| private int borderPosition; |
| |
| private Control border; |
| |
| private Control clientControl; |
| |
| private GridLayout layout; |
| |
| private GridData borderData; |
| |
| private GridData clientControlData; |
| |
| public OneBorderComposite(Composite parent) |
| { |
| super(parent, SWT.NONE); |
| layout = UIUtil.createGridLayout(1); |
| setLayout(layout); |
| |
| clientControlData = UIUtil.createGridData(); |
| clientControl = createUI(this); |
| clientControl.setLayoutData(clientControlData); |
| } |
| |
| public OneBorderComposite(Composite parent, int borderPosition) |
| { |
| this(parent); |
| setBorderPosition(borderPosition); |
| } |
| |
| public Control getClientControl() |
| { |
| return clientControl; |
| } |
| |
| public int getBorderPosition() |
| { |
| return borderPosition; |
| } |
| |
| public void setBorderPosition(int borderPosition) |
| { |
| borderPosition = borderPosition & POSITION_MASK; |
| if (Integer.bitCount(borderPosition) != 1) |
| { |
| throw new IllegalArgumentException("borderPosition: " + borderPosition); //$NON-NLS-1$ |
| } |
| |
| if (this.borderPosition != borderPosition) |
| { |
| this.borderPosition = borderPosition; |
| switch (borderPosition) |
| { |
| case SWT.LEFT: |
| setBorder(true, true); |
| break; |
| |
| case SWT.RIGHT: |
| setBorder(true, false); |
| break; |
| |
| case SWT.TOP: |
| setBorder(false, true); |
| break; |
| |
| case SWT.BOTTOM: |
| setBorder(false, false); |
| break; |
| |
| default: |
| return; |
| } |
| |
| layout(); |
| } |
| } |
| |
| public void swapBorderPosition() |
| { |
| switch (borderPosition) |
| { |
| case SWT.LEFT: |
| setBorderPosition(SWT.TOP); |
| break; |
| |
| case SWT.RIGHT: |
| setBorderPosition(SWT.BOTTOM); |
| break; |
| |
| case SWT.TOP: |
| setBorderPosition(SWT.LEFT); |
| break; |
| |
| case SWT.BOTTOM: |
| setBorderPosition(SWT.RIGHT); |
| break; |
| } |
| } |
| |
| @Override |
| public String toString() |
| { |
| switch (borderPosition) |
| { |
| case SWT.LEFT: |
| return "LEFT"; //$NON-NLS-1$ |
| |
| case SWT.RIGHT: |
| return "RIGHT"; //$NON-NLS-1$ |
| |
| case SWT.TOP: |
| return "TOP"; //$NON-NLS-1$ |
| |
| case SWT.BOTTOM: |
| return "BOTTOM"; //$NON-NLS-1$ |
| } |
| |
| return super.toString(); |
| } |
| |
| protected abstract Control createUI(Composite parent); |
| |
| private void setBorder(boolean vertical, boolean beginning) |
| { |
| if (border != null) |
| { |
| border.dispose(); |
| } |
| |
| layout.numColumns = vertical ? 2 : 1; |
| borderData = UIUtil.createGridData(); |
| borderData.widthHint = vertical ? 1 : SWT.DEFAULT; |
| borderData.heightHint = vertical ? SWT.DEFAULT : 1; |
| borderData.grabExcessHorizontalSpace = !vertical; |
| borderData.grabExcessVerticalSpace = vertical; |
| |
| int orientation = vertical ? SWT.VERTICAL : SWT.HORIZONTAL; |
| border = new Label(this, SWT.SEPARATOR | orientation); |
| border.setLayoutData(borderData); |
| if (beginning) |
| { |
| border.moveAbove(null); |
| } |
| } |
| } |