org.eclipse.swt.snippets.Snippet168.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet168.java

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/*******************************************************************************
 * Copyright (c) 2000, 2016 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.snippets;

/*
 * Draw lines and polygons with different cap and join styles
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.1
 */

import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;

public class Snippet168 {

    public static void main(String[] args) {
        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Snippet 168");
        shell.addListener(SWT.Paint, event -> {
            int x = 20, y = 20, w = 120, h = 60;
            GC gc = event.gc;
            gc.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
            gc.setLineWidth(10);
            int[] caps = { SWT.CAP_FLAT, SWT.CAP_ROUND, SWT.CAP_SQUARE };
            for (int i1 = 0; i1 < caps.length; i1++) {
                gc.setLineCap(caps[i1]);
                gc.drawLine(x, y, x + w, y);
                y += 20;
            }
            int[] joins = { SWT.JOIN_BEVEL, SWT.JOIN_MITER, SWT.JOIN_ROUND };
            for (int i2 = 0; i2 < joins.length; i2++) {
                gc.setLineJoin(joins[i2]);
                gc.drawPolygon(new int[] { x, y, x + w / 2, y + h, x + w, y });
                y += h + 20;
            }
        });
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}