Provide the ability of drawing text using GWTCanvas.

The jars are compatible with GWT 2.0 and 2.1 (and probably with 1.6)

Add the following into your gwt.xml project file:

	<inherits name='com.google.gwt.widgetideas.GWTCanvas'/>
	<inherits name='com.swtoolbox.canvasfont.SWTBCanvasFont'/>
	<inherits name='com.swtb.font.SWTBFont'/>

Do not forget to add the following jars in the build path:

• gwt-incubator-20100204-r1747.jar (available at http://code.google.com/p/google-web-toolkit-incubator/)
• swtbfont-0.1.jar
• swtbcanvasfont-0.3.jar

The supplied font called Simplex has been created from the font of the same name you can find at URL: http://local.wasp.uwa.edu.au/~pbourke/dataformats/hershey/ We shall thank the creator and contributors to have released these fonts in the public domain.

Example:

package com.swtb.fontexample.client;

import com.google.gwt.core.client.EntryPoint;

/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class SWTBFontExample implements EntryPoint {
	
	Simplex simplex = new Simplex();
	
	public void onModuleLoad() {
		RootPanel rootPanel = RootPanel.get();

		SWTBCanvasText canvas = new SWTBCanvasText(800, 600);
		rootPanel.add(canvas);
		
		canvas.setFont(simplex);
		
		canvas.saveContext();
		canvas.beginPath();
		canvas.textTo("Hello world!", 20.0, 380.0, 0.0, 2.0);
		canvas.stroke();
		canvas.restoreContext();
		
		canvas.saveContext();
		canvas.setLineWidth(2.0);
		canvas.beginPath();
		canvas.textTo("This should be in bold", 20.0, 60.0, 0.0, 1.0);
		canvas.stroke();
		canvas.restoreContext();
		
		canvas.saveContext();
		canvas.setItalic(true);
		canvas.beginPath();
		canvas.textTo("This should be in italic", 20.0, 100.0, 0.0, 1.0);
		canvas.stroke();
		canvas.restoreContext();
		
		canvas.saveContext();
		canvas.setItalic(true);
		canvas.setLineWidth(2.0);
		canvas.beginPath();
		canvas.textTo("This should be in bold and italic", 20, 140, 0.0, 1.0);
		canvas.stroke();
		canvas.restoreContext();
		
		canvas.saveContext();
		canvas.beginPath();
		canvas.moveTo(20, 180);
		canvas.textTo("This should be normal", 20, 180, 0.0, 1.0);
		canvas.stroke();
		canvas.restoreContext();
		
		canvas.saveContext();
		canvas.setItalic(true);
		canvas.setLineWidth(1.25);
		canvas.beginPath();
		canvas.textTo("Diagonal going up", 50, 580, Math.toRadians(30), 0.75);
		canvas.stroke();
		canvas.restoreContext();
		
		canvas.saveContext();
		canvas.setItalic(true);
		canvas.setLineWidth(1.25);
		canvas.beginPath();
		canvas.textTo("Diagonal going down", 50, 220, Math.toRadians(-30), 0.75);
		canvas.stroke();
		canvas.restoreContext();
		
	}
}

The above code will produce the following image:

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For further information see the Javadoc included into swtbcanvasfont-0.2.jar