org.eclipse.swt.examples.accessibility.AccessibleTableExample.java Source code

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Here is the source code for org.eclipse.swt.examples.accessibility.AccessibleTableExample.java

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/*******************************************************************************
 * Copyright (c) 2008, 2013 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.examples.accessibility;

import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;

import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

/**
 * This example shows how to use AccessibleTableListener and
 * AccessibleTableCellListener to provide information to an AT.
 * See CTable, CTableColumn, and CTableItem for details.
 */
public class AccessibleTableExample {
    static ResourceBundle resourceBundle = ResourceBundle.getBundle("examples_accessibility"); //$NON-NLS-1$
    static CTable table1;

    static String getResourceString(String key) {
        try {
            return resourceBundle.getString(key);
        } catch (MissingResourceException e) {
            return key;
        } catch (NullPointerException e) {
            return "!" + key + "!"; //$NON-NLS-1$ //$NON-NLS-2$
        }
    }

    static final String[] itemText = new String[] { AccessibleTableExample.getResourceString("color1"),
            AccessibleTableExample.getResourceString("color2"), AccessibleTableExample.getResourceString("color3"),
            AccessibleTableExample.getResourceString("color4"),
            AccessibleTableExample.getResourceString("color5"), };

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setLayout(new GridLayout());
        shell.setText("Accessible Table Example");

        Group group = new Group(shell, SWT.NONE);
        group.setText("Tables With Accessible Cell Children");
        group.setLayout(new GridLayout());

        new Label(group, SWT.NONE).setText("CTable with column headers");

        table1 = new CTable(group, SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER);
        table1.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        table1.setHeaderVisible(true);
        table1.setLinesVisible(true);
        for (int col = 0; col < 3; col++) {
            CTableColumn column = new CTableColumn(table1, SWT.NONE);
            column.setText("Col " + col);
            column.setWidth(50);
        }
        for (int row = 0; row < 4; row++) {
            CTableItem item = new CTableItem(table1, SWT.NONE);
            item.setText(new String[] { "C0R" + row, "C1R" + row, "C2R" + row });
        }

        Composite btnGroup = new Composite(group, SWT.NONE);
        btnGroup.setLayout(new FillLayout(SWT.VERTICAL));
        Button btn = new Button(btnGroup, SWT.PUSH);
        btn.setText("Add rows");
        btn.addSelectionListener(widgetSelectedAdapter(e -> {
            int currSize = table1.getItemCount();
            int colCount = table1.getColumnCount();
            CTableItem item = new CTableItem(table1, SWT.NONE);
            String[] cells = new String[colCount];

            for (int i = 0; i < colCount; i++) {
                cells[i] = "C" + i + "R" + currSize;
            }
            item.setText(cells);
        }));
        btn = new Button(btnGroup, SWT.PUSH);
        btn.setText("Remove rows");
        btn.addSelectionListener(widgetSelectedAdapter(e -> {
            int currSize = table1.getItemCount();
            if (currSize > 0) {
                table1.remove(currSize - 1);
            }
        }));
        btn = new Button(btnGroup, SWT.PUSH);
        btn.setText("Remove selected rows");
        btn.addSelectionListener(widgetSelectedAdapter(e -> {
            CTableItem[] selectedItems = table1.getSelection();
            for (CTableItem selectedItem : selectedItems) {
                selectedItem.dispose();
            }
        }));
        btn = new Button(btnGroup, SWT.PUSH);
        btn.setText("Add column");
        btn.addSelectionListener(widgetSelectedAdapter(e -> {
            int currSize = table1.getColumnCount();
            CTableColumn item = new CTableColumn(table1, SWT.NONE);
            item.setText("Col " + currSize);
            item.setWidth(50);
        }));
        btn = new Button(btnGroup, SWT.PUSH);
        btn.setText("Remove last column");

        btn.addSelectionListener(widgetSelectedAdapter(e -> {
            int colCount = table1.getColumnCount();
            if (colCount > 0) {
                CTableColumn column = table1.getColumn(colCount - 1);
                column.dispose();
            }
        }));

        new Label(group, SWT.NONE).setText("CTable used as a list");

        CTable table2 = new CTable(group, SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER);
        table2.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        table2.setLinesVisible(true);
        for (String element : itemText) {
            CTableItem item = new CTableItem(table2, SWT.NONE);
            item.setText(element);
        }

        shell.pack();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}