CoursePointer

CoursePointer

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Scalable course pointer. Component for visualizing a compass bearing.

Uses raphael4gwt for drawing. raphael4gwt is included in the add-on. The bars are filled red when less than third of the bars are set filled, yellow between one and two thirds filled and green when more than two thirds are filled.

Sample code

package com.example.addontest;

import org.vaadin.addon.coursepointer.CoursePointer;

import com.vaadin.annotations.Theme;
import com.vaadin.server.VaadinRequest;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;

public class AddontestUI extends UI {

	@Override
	protected void init(VaadinRequest request) {
		VerticalLayout layout = new VerticalLayout();
		setContent(layout);

		final CoursePointer c = new CoursePointer(45.6);
		layout.addComponent(c);

		Button b = new Button("+10");
		layout.addComponent(b);
		b.addClickListener(new Button.ClickListener() {

			@Override
			public void buttonClick(ClickEvent event) {

				c.setValue(c.getValue() + 10);
			}
		});
	}

}

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