| /******************************************************************************* |
| * Copyright (c) 2013, 2015 Dirk Fauth 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: |
| * Dirk Fauth <dirk.fauth@gogglemail.com> - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.nebula.widgets.nattable.examples._500_Layers._504_Viewport; |
| |
| import org.eclipse.nebula.widgets.nattable.NatTable; |
| import org.eclipse.nebula.widgets.nattable.data.ExtendedReflectiveColumnPropertyAccessor; |
| import org.eclipse.nebula.widgets.nattable.data.IColumnPropertyAccessor; |
| import org.eclipse.nebula.widgets.nattable.data.IDataProvider; |
| import org.eclipse.nebula.widgets.nattable.data.ListDataProvider; |
| import org.eclipse.nebula.widgets.nattable.dataset.person.PersonService; |
| import org.eclipse.nebula.widgets.nattable.dataset.person.PersonWithAddress; |
| import org.eclipse.nebula.widgets.nattable.examples.AbstractNatExample; |
| import org.eclipse.nebula.widgets.nattable.examples.runner.StandaloneNatExampleRunner; |
| import org.eclipse.nebula.widgets.nattable.layer.CompositeLayer; |
| import org.eclipse.nebula.widgets.nattable.layer.DataLayer; |
| import org.eclipse.nebula.widgets.nattable.layer.ILayer; |
| import org.eclipse.nebula.widgets.nattable.painter.IOverlayPainter; |
| import org.eclipse.nebula.widgets.nattable.painter.layer.GridLineCellLayerPainter; |
| import org.eclipse.nebula.widgets.nattable.print.command.MultiTurnViewportOffCommandHandler; |
| import org.eclipse.nebula.widgets.nattable.print.command.MultiTurnViewportOnCommandHandler; |
| import org.eclipse.nebula.widgets.nattable.util.ClientAreaAdapter; |
| import org.eclipse.nebula.widgets.nattable.util.GUIHelper; |
| import org.eclipse.nebula.widgets.nattable.viewport.SliderScroller; |
| import org.eclipse.nebula.widgets.nattable.viewport.ViewportLayer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.layout.FillLayout; |
| 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.Slider; |
| |
| /** |
| * Example showing how to implement NatTable that contains two horizontal split |
| * viewports. |
| */ |
| public class _5042_HorizontalSplitViewportExample extends AbstractNatExample { |
| |
| public static void main(String[] args) throws Exception { |
| StandaloneNatExampleRunner.run(600, 400, new _5042_HorizontalSplitViewportExample()); |
| } |
| |
| @Override |
| public String getDescription() { |
| return "This example shows a NatTable that contains two separately scrollable " |
| + "horzizontal split viewports."; |
| } |
| |
| @Override |
| public Control createExampleControl(Composite parent) { |
| // property names of the Person class |
| String[] propertyNames = { "firstName", "lastName", "gender", "married", "birthday", |
| "address.street", "address.housenumber", "address.postalCode", "address.city" }; |
| |
| IColumnPropertyAccessor<PersonWithAddress> columnPropertyAccessor = |
| new ExtendedReflectiveColumnPropertyAccessor<PersonWithAddress>(propertyNames); |
| |
| IDataProvider bodyDataProvider = new ListDataProvider<PersonWithAddress>( |
| PersonService.getPersonsWithAddress(50), columnPropertyAccessor); |
| DataLayer bodyDataLayer = new DataLayer(bodyDataProvider); |
| |
| // use a cell layer painter that is configured for left clipping |
| // this ensures that the rendering works correctly for split viewports |
| bodyDataLayer.setLayerPainter(new GridLineCellLayerPainter(true, false)); |
| |
| // create a ViewportLayer for the left part of the table and configure |
| // it to only contain the first 5 columns |
| final ViewportLayer viewportLayerLeft = new ViewportLayer(bodyDataLayer); |
| viewportLayerLeft.setMaxColumnPosition(5); |
| |
| // create a ViewportLayer for the right part of the table and configure |
| // it to only contain the last 4 columns |
| ViewportLayer viewportLayerRight = new ViewportLayer(bodyDataLayer); |
| viewportLayerRight.setMinColumnPosition(5); |
| |
| // create a CompositeLayer that contains both ViewportLayers |
| CompositeLayer compositeLayer = new CompositeLayer(2, 1); |
| compositeLayer.setChildLayer("REGION_A", viewportLayerLeft, 0, 0); |
| compositeLayer.setChildLayer("REGION_B", viewportLayerRight, 1, 0); |
| |
| // in order to make printing and exporting work correctly you need to |
| // register the following command handlers |
| // although in this example printing and exporting is not enabled, we |
| // show the registering |
| compositeLayer.registerCommandHandler( |
| new MultiTurnViewportOnCommandHandler(viewportLayerLeft, viewportLayerRight)); |
| compositeLayer.registerCommandHandler( |
| new MultiTurnViewportOffCommandHandler(viewportLayerLeft, viewportLayerRight)); |
| |
| // set the width of the left viewport to only showing 2 columns at the |
| // same time |
| int leftWidth = bodyDataLayer.getStartXOfColumnPosition(2); |
| |
| // as the CompositeLayer is setting a IClientAreaProvider for the |
| // composition we need to set a special ClientAreaAdapter after the |
| // creation of the CompositeLayer to support split viewports |
| ClientAreaAdapter leftClientAreaAdapter = |
| new ClientAreaAdapter(viewportLayerLeft.getClientAreaProvider()); |
| leftClientAreaAdapter.setWidth(leftWidth); |
| viewportLayerLeft.setClientAreaProvider(leftClientAreaAdapter); |
| |
| // Wrap NatTable in composite so we can slap on the external horizontal |
| // sliders |
| Composite composite = new Composite(parent, SWT.NONE); |
| GridLayout gridLayout = new GridLayout(1, false); |
| gridLayout.marginHeight = 0; |
| gridLayout.marginWidth = 0; |
| gridLayout.horizontalSpacing = 0; |
| gridLayout.verticalSpacing = 0; |
| composite.setLayout(gridLayout); |
| |
| NatTable natTable = new NatTable(composite, compositeLayer); |
| GridData gridData = new GridData(); |
| gridData.horizontalAlignment = GridData.FILL; |
| gridData.verticalAlignment = GridData.FILL; |
| gridData.grabExcessHorizontalSpace = true; |
| gridData.grabExcessVerticalSpace = true; |
| natTable.setLayoutData(gridData); |
| |
| createSplitSliders(composite, viewportLayerLeft, viewportLayerRight); |
| |
| // add an IOverlayPainter to ensure the right border of the left |
| // viewport always this is necessary because the left border of layer |
| // stacks is not rendered by default |
| natTable.addOverlayPainter(new IOverlayPainter() { |
| |
| @Override |
| public void paintOverlay(GC gc, ILayer layer) { |
| Color beforeColor = gc.getForeground(); |
| gc.setForeground(GUIHelper.COLOR_GRAY); |
| int viewportBorderX = viewportLayerLeft.getWidth() - 1; |
| gc.drawLine(viewportBorderX, 0, viewportBorderX, layer.getHeight() - 1); |
| gc.setForeground(beforeColor); |
| } |
| }); |
| |
| return composite; |
| } |
| |
| private void createSplitSliders( |
| Composite natTableParent, final ViewportLayer left, final ViewportLayer right) { |
| Composite sliderComposite = new Composite(natTableParent, SWT.NONE); |
| GridData gridData = new GridData(); |
| gridData.horizontalAlignment = GridData.FILL; |
| gridData.grabExcessHorizontalSpace = true; |
| gridData.grabExcessVerticalSpace = false; |
| gridData.heightHint = 17; |
| sliderComposite.setLayoutData(gridData); |
| |
| GridLayout gridLayout = new GridLayout(2, false); |
| gridLayout.marginHeight = 0; |
| gridLayout.marginWidth = 0; |
| gridLayout.horizontalSpacing = 0; |
| gridLayout.verticalSpacing = 0; |
| sliderComposite.setLayout(gridLayout); |
| |
| // Slider Left |
| // Need a composite here to set preferred size because Slider can't be |
| // subclassed. |
| Composite sliderLeftComposite = new Composite(sliderComposite, SWT.NONE) { |
| @Override |
| public Point computeSize(int wHint, int hHint, boolean changed) { |
| int width = ((ClientAreaAdapter) left.getClientAreaProvider()).getWidth(); |
| return new Point(width, 17); |
| } |
| }; |
| sliderLeftComposite.setLayout(new FillLayout()); |
| gridData = new GridData(); |
| gridData.horizontalAlignment = GridData.BEGINNING; |
| gridData.verticalAlignment = GridData.BEGINNING; |
| sliderLeftComposite.setLayoutData(gridData); |
| |
| Slider sliderLeft = new Slider(sliderLeftComposite, SWT.HORIZONTAL); |
| gridData = new GridData(); |
| gridData.horizontalAlignment = GridData.FILL; |
| gridData.verticalAlignment = GridData.FILL; |
| sliderLeft.setLayoutData(gridData); |
| |
| left.setHorizontalScroller(new SliderScroller(sliderLeft)); |
| |
| // Slider Right |
| Slider sliderRight = new Slider(sliderComposite, SWT.HORIZONTAL); |
| gridData = new GridData(); |
| gridData.horizontalAlignment = GridData.FILL; |
| gridData.verticalAlignment = GridData.BEGINNING; |
| gridData.grabExcessHorizontalSpace = true; |
| gridData.grabExcessVerticalSpace = false; |
| sliderRight.setLayoutData(gridData); |
| |
| right.setHorizontalScroller(new SliderScroller(sliderRight)); |
| } |
| } |
