/*******************************************************************************
* Copyright (c) 2012 Original authors 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
******************************************************************************/
package org.eclipse.nebula.widgets.nattable.examples._500_Layers._501_Data;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.nebula.widgets.nattable.NatTable;
import org.eclipse.nebula.widgets.nattable.examples.AbstractNatExample;
import org.eclipse.nebula.widgets.nattable.examples.runner.StandaloneNatExampleRunner;
import org.eclipse.nebula.widgets.nattable.grid.GridRegion;
import org.eclipse.nebula.widgets.nattable.grid.data.DummyModifiableBodyDataProvider;
import org.eclipse.nebula.widgets.nattable.layer.DataLayer;
import org.eclipse.nebula.widgets.nattable.selection.SelectionLayer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
public class _5012_PercentageSizingDataLayerExample extends AbstractNatExample {
public static void main(String[] args) throws Exception {
StandaloneNatExampleRunner.run(600, 850,
new _5012_PercentageSizingDataLayerExample());
}
@Override
public String getDescription() {
return "This example shows some examples for simple NatTable compositions that "
+ "are using percentage sizing.\n\n"
+ "First table:\tAll columns and all rows have the same size by calculating the size dependent on the available width\n"
+ "Second table:\tAll columns have fixed percentage values (25% / 25% / 50%)\n"
+ "Third table:\tColumn 1 and 3 are configured to take 40% of the available space each, column 2 will take the rest\n"
+ "Fourth table:\tColumn 1 and 2 are configured for 100 pixels width, column 3 will take the rest";
}
@Override
public Control createExampleControl(Composite parent) {
Composite panel = new Composite(parent, SWT.NONE);
panel.setLayout(new GridLayout());
GridDataFactory.fillDefaults().grab(true, true).applyTo(panel);
Composite simplePanel = new Composite(panel, SWT.NONE);
simplePanel.setLayout(new GridLayout());
GridDataFactory.fillDefaults().grab(true, true).applyTo(simplePanel);
Composite buttonPanel = new Composite(panel, SWT.NONE);
buttonPanel.setLayout(new RowLayout());
GridDataFactory.fillDefaults().grab(true, false).applyTo(buttonPanel);
final DummyModifiableBodyDataProvider dataProvider =
new DummyModifiableBodyDataProvider(3, 2);
// example for percentage calculation with default sizing
// all columns will be same size while the NatTable itself will have
// 100%
final DataLayer n1DataLayer = new DataLayer(dataProvider);
n1DataLayer.setColumnPercentageSizing(true);
n1DataLayer.setRowPercentageSizing(true);
SelectionLayer layer = new SelectionLayer(n1DataLayer);
layer.setRegionName(GridRegion.BODY);
// use different style bits to avoid rendering of inactive scrollbars
// for small table when using percentage sizing, typically there should
// be no scrollbars, as the table should take the available space
// Note: The enabling/disabling and showing of the scrollbars is handled
// by the ViewportLayer. Without the ViewportLayer the scrollbars will
// always be visible with the default style bits of NatTable.
final NatTable n1 = new NatTable(
simplePanel, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.DOUBLE_BUFFERED, layer);
GridDataFactory.fillDefaults().grab(true, true).applyTo(n1);
// example for fixed percentage sizing
// ensure that the sum of column sizes is not greater than 100
final DataLayer n2DataLayer = new DataLayer(dataProvider);
n2DataLayer.setColumnWidthPercentageByPosition(0, 25);
n2DataLayer.setColumnWidthPercentageByPosition(1, 25);
n2DataLayer.setColumnWidthPercentageByPosition(2, 50);
layer = new SelectionLayer(n2DataLayer);
layer.setRegionName(GridRegion.BODY);
// use different style bits to avoid rendering of inactive scrollbars
// for small table when using percentage sizing, typically there should
// be no scrollbars, as the table should take the available space
// Note: The enabling/disabling and showing of the scrollbars is handled
// by the ViewportLayer. Without the ViewportLayer the scrollbars will
// always be visible with the default style bits of NatTable.
final NatTable n2 = new NatTable(
simplePanel, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.DOUBLE_BUFFERED, layer);
GridDataFactory.fillDefaults().grab(true, true).applyTo(n2);
// example for mixed percentage sizing
// configure not every column with the exact percentage value, this way
// the columns for which no exact values are set will use the remaining
// space
final DataLayer n3DataLayer = new DataLayer(dataProvider);
n3DataLayer.setColumnPercentageSizing(true);
n3DataLayer.setColumnWidthPercentageByPosition(0, 40);
n3DataLayer.setColumnWidthPercentageByPosition(2, 40);
layer = new SelectionLayer(n3DataLayer);
layer.setRegionName(GridRegion.BODY);
// use different style bits to avoid rendering of inactive scrollbars
// for small table when using percentage sizing, typically there should
// be no scrollbars, as the table should take the available space
// Note: The enabling/disabling and showing of the scrollbars is handled
// by the ViewportLayer. Without the ViewportLayer the scrollbars will
// always be visible with the default style bits of NatTable.
final NatTable n3 = new NatTable(
simplePanel, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.DOUBLE_BUFFERED, layer);
GridDataFactory.fillDefaults().grab(true, true).applyTo(n3);
// example for mixed fixed/percentage sizing
// configure not every column with the exact percentage value, this way
// the columns for which no exact values are set will use the remaining
// space
final DataLayer mixDataLayer = new DataLayer(dataProvider);
mixDataLayer.setColumnPercentageSizing(true);
mixDataLayer.setColumnPercentageSizing(0, false);
mixDataLayer.setColumnPercentageSizing(1, false);
mixDataLayer.setColumnWidthByPosition(0, 100);
mixDataLayer.setColumnWidthByPosition(1, 100);
layer = new SelectionLayer(mixDataLayer);
layer.setRegionName(GridRegion.BODY);
// use different style bits to avoid rendering of inactive scrollbars
// for small table when using percentage sizing, typically there should
// be no scrollbars, as the table should take the available space
// Note: The enabling/disabling and showing of the scrollbars is handled
// by the ViewportLayer. Without the ViewportLayer the scrollbars will
// always be visible with the default style bits of NatTable.
final NatTable mix = new NatTable(
simplePanel, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.DOUBLE_BUFFERED, layer);
GridDataFactory.fillDefaults().grab(true, true).applyTo(mix);
Button addColumnButton = new Button(buttonPanel, SWT.PUSH);
addColumnButton.setText("add column - no width");
addColumnButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
dataProvider.setColumnCount(dataProvider.getColumnCount() + 1);
n1.refresh();
n2.refresh();
n3.refresh();
mix.refresh();
}
});
Button addColumnButton2 = new Button(buttonPanel, SWT.PUSH);
addColumnButton2.setText("add column - 20 percent width");
addColumnButton2.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
dataProvider.setColumnCount(dataProvider.getColumnCount() + 1);
n1DataLayer.setColumnWidthPercentageByPosition(
dataProvider.getColumnCount() - 1, 20);
n2DataLayer.setColumnWidthPercentageByPosition(
dataProvider.getColumnCount() - 1, 20);
n3DataLayer.setColumnWidthPercentageByPosition(
dataProvider.getColumnCount() - 1, 20);
mixDataLayer.setColumnWidthPercentageByPosition(
dataProvider.getColumnCount() - 1, 20);
n1.refresh();
n2.refresh();
n3.refresh();
mix.refresh();
}
});
return panel;
}
}