Java Tutorial/SWT 2D Graphics/Path

Create a path from some text

   <source lang="java">

import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Path; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; public class PathTextFrom {

 public static void main(String[] args) {
   Display display = new Display();
   FontData data = display.getSystemFont().getFontData()[0];
   Font font = new Font(display, data.getName(), 96, SWT.BOLD | SWT.ITALIC);
   final Color green = display.getSystemColor(SWT.COLOR_GREEN);
   final Color blue = display.getSystemColor(SWT.COLOR_BLUE);
   final Path path = new Path(display);
   path.addString("SWT", 0, 0, font);
   Shell shell = new Shell(display);
   shell.addListener(SWT.Paint, new Listener() {
     public void handleEvent(Event e) {
       GC gc = e.gc;
       gc.setBackground(green);
       gc.setForeground(blue);
       gc.fillPath(path);
       gc.drawPath(path);
     }
   });
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   path.dispose();
   font.dispose();
   display.dispose();
 }

}</source>

Draw and fill path

   <source lang="java">

/*******************************************************************************

* Copyright (c) 2000, 2005 IBM Corporation 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:
*     IBM Corporation - initial API and implementation
*******************************************************************************/

/*

* Drawing with transformations, paths and alpha blending
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
* 
* @since 3.1
*/

import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Path; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; public class AlphaBlending {

 public static void main(String[] args) {
   final Display display = new Display();
   final Shell shell = new Shell(display);
   FontData fd = shell.getFont().getFontData()[0];
   final Font font = new Font(display, fd.getName(), 60, SWT.BOLD | SWT.ITALIC);
   final Image image = new Image(display, 640, 480);
   final Rectangle rect = image.getBounds();
   GC gc = new GC(image);
   gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
   gc.fillOval(rect.x, rect.y, rect.width, rect.height);
   gc.dispose();
   shell.addListener(SWT.Paint, new Listener() {
     public void handleEvent(Event event) {
       GC gc = event.gc;
       gc.drawImage(image, 0, 0, rect.width, rect.height, 0, 0, rect.width / 2, rect.height / 2);
       gc.setAlpha(100);
       Path path = new Path(display);
       path.addString("SWT", 0, 0, font);
       gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
       gc.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
       gc.fillPath(path);
       gc.drawPath(path);
       path.dispose();
     }
   });
   shell.setSize(shell.ruputeSize(rect.width / 2, rect.height / 2));
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   image.dispose();
   font.dispose();
   display.dispose();
 }

}</source>