org.eclipse.jface.layout.TableColumnLayout Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2007, 2015 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Tom Schindl - initial API and implementation
* - fix for bug 178280
* IBM Corporation - API refactoring and general maintenance
*******************************************************************************/
package org.eclipse.jface.layout;
import org.eclipse.jface.viewers.ColumnLayoutData;
import org.eclipse.jface.viewers.ColumnPixelData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Layout;
import org.eclipse.swt.widgets.Scrollable;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Widget;
/**
* The TableColumnLayout is the {@link Layout} used to maintain
* {@link TableColumn} sizes in a {@link Table}.
*
*
* You can only add the {@link Layout} to a container whose only child
* is the {@link Table} control you want the {@link Layout} applied to. Don't
* assign the layout directly the {@link Table}
*
*
* @since 3.3
*/
public class TableColumnLayout extends AbstractColumnLayout {
/**
* Creates a new table column layout.
*/
public TableColumnLayout() {
}
/**
* Creates a new table column layout.
*
* @param adjustForScrollBar
* true if the layout should reserve space for the
* vertical scroll bar
* @since 3.12
*/
public TableColumnLayout(boolean adjustForScrollBar) {
super(adjustForScrollBar);
}
/**
* {@inheritDoc}
*
* @since 3.5
*/
@Override
protected int getColumnCount(Scrollable tableTree) {
return ((Table) tableTree).getColumnCount();
}
/**
* {@inheritDoc}
*
* @since 3.5
*/
@Override
protected void setColumnWidths(Scrollable tableTree, int[] widths) {
TableColumn[] columns = ((Table) tableTree).getColumns();
for (int i = 0; i < widths.length; i++) {
columns[i].setWidth(widths[i]);
}
}
/**
* {@inheritDoc}
*
* @since 3.5
*/
@Override
protected ColumnLayoutData getLayoutData(Scrollable tableTree,
int columnIndex) {
TableColumn column = ((Table) tableTree).getColumn(columnIndex);
return (ColumnLayoutData) column.getData(LAYOUT_DATA);
}
Composite getComposite(Widget column) {
return ((TableColumn) column).getParent().getParent();
}
/**
* @since 3.5
*/
@Override
protected void updateColumnData(Widget column) {
TableColumn tColumn = (TableColumn) column;
Table t = tColumn.getParent();
if (!IS_GTK || t.getColumn(t.getColumnCount() - 1) != tColumn) {
tColumn.setData(LAYOUT_DATA,
new ColumnPixelData(tColumn.getWidth()));
layout(t.getParent(), true);
}
}
}