thothbot.parallax.site.client.Site.java Source code

Introduction

Here is the source code for thothbot.parallax.site.client.Site.java

Source

/*
 * Copyright 2012 Alex Usachev, thothbot@gmail.com
 * 
 * This file is part of Parallax project.
 * 
 * Parallax is free software: you can redistribute it and/or modify it 
 * under the terms of the Creative Commons Attribution 3.0 Unported License.
 * 
 * Parallax is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the Creative Commons Attribution 
 * 3.0 Unported License. for more details.
 * 
 * You should have received a copy of the the Creative Commons Attribution 
 * 3.0 Unported License along with Parallax. 
 * If not, see http://creativecommons.org/licenses/by/3.0/.
 */

package thothbot.parallax.site.client;

import thothbot.parallax.core.client.AnimatedScene;
import thothbot.parallax.core.client.RenderingPanel;
import thothbot.parallax.core.client.events.AnimationReadyEvent;
import thothbot.parallax.core.client.events.AnimationReadyHandler;
import thothbot.parallax.core.client.events.Context3dErrorEvent;
import thothbot.parallax.core.client.events.Context3dErrorHandler;
import thothbot.parallax.core.client.events.SceneLoadingEvent;
import thothbot.parallax.core.client.events.SceneLoadingHandler;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.ToggleButton;

/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class Site
        implements EntryPoint, AnimationReadyHandler, SceneLoadingHandler, Context3dErrorHandler, ResizeHandler {
    public interface SiteResources extends ClientBundle {
        ImageResource play();

        ImageResource pause();

        ImageResource stop();
    }

    /**
     * The static resources used throughout the Demo.
     */
    public static final SiteResources resources = GWT.create(SiteResources.class);
    private RenderingPanel renderingPanel;

    FlowPanel infoPanel;
    private ToggleButton animationSwitch;
    private Label infoText;

    /**
     * This is the entry point method.
     */
    public void onModuleLoad() {
        infoText = new Label("Loading...");
        infoText.setStyleName("info");
        animationSwitch = new ToggleButton();
        animationSwitch.setEnabled(false);
        animationSwitch.getUpFace().setImage(new Image(resources.stop()));

        TerrainDynamic scene = new TerrainDynamic();
        renderingPanel = new RenderingPanel();
        RootPanel.get("animation").add(renderingPanel);

        // Background color
        renderingPanel.setBackground(0x111111);
        renderingPanel.addAnimationReadyHandler(this);
        renderingPanel.addSceneLoadingHandler(this);
        renderingPanel.addCanvas3dErrorHandler(this);

        renderingPanel.setAnimatedScene(scene.getDemoScene());

        infoPanel = new FlowPanel();
        RootPanel.get("animationPanel").add(infoPanel);
        infoPanel.add(animationSwitch);
        infoPanel.add(infoText);
    }

    /**
     * This event called when {@link RenderingPanel} is ready to animate a 
     * {@link AnimatedScene} in loaded example.
     */
    public void onAnimationReady(AnimationReadyEvent event) {
        animationSwitch.setEnabled(true);
        animationSwitch.setDown(true);
        animationSwitch.getUpFace().setImage(new Image(resources.pause()));
        animationSwitch.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                if (animationSwitch.isDown()) {
                    animationSwitch.getUpFace().setImage(new Image(resources.pause()));
                    Site.this.renderingPanel.getAnimatedScene().run();
                } else {
                    animationSwitch.getUpFace().setImage(new Image(resources.play()));
                    Site.this.renderingPanel.getAnimatedScene().stop();
                }
            }
        });
    }

    @Override
    public void onSceneLoading(SceneLoadingEvent event) {
        if (event.isLoaded()) {
            infoText.setText("Your browser supports WebGL!");
            Window.addResizeHandler(this);
        } else {
            infoText.setText("Loading scene...");
        }
    }

    @Override
    public void onContextError(Context3dErrorEvent event) {
        infoText.setText("Your browser does not support WebGL.");
        RootPanel.get("animation").remove(renderingPanel);
    }

    @Override
    public void onResize(ResizeEvent event) {
        Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() {
            @Override
            public void execute() {
                renderingPanel.onResize();
            }
        });
    }
}