com.google.gwt.visualization.client.visualizations.Toolbar.java Source code

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Here is the source code for com.google.gwt.visualization.client.visualizations.Toolbar.java

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/*
 * Copyright 2008 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.visualization.client.visualizations;

import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.core.client.JsArray;
import com.google.gwt.dom.client.DivElement;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.visualization.client.AbstractDrawOptions;

/**
 * Visualizations toolbar. A tool for visualizations, for exporting purposes.
 * 
 * @see <a href=
 *      "http://code.google.com/apis/visualization/documentation/gallery/toolbar.html"
 *      > Visualization Toolbar Reference</a>
 */
public class Toolbar extends Widget {

    public static final String PACKAGE = "default";

    private JsArray<Component> components;
    private DivElement div;

    /**
     * Enum for component type.
     */
    public enum Type {
        HTMLCODE("htmlcode"), CSV("csv"), HTML("html"), IGOOGLE("igoogle");

        private String typeCode;

        Type(String typeCode) {
            this.typeCode = typeCode;
        }

        public String getTypeCode() {
            return typeCode;
        }
    }

    /**
     * Component for the toolbar.
     */
    public static class Component extends AbstractDrawOptions {
        public static Component create() {
            return JavaScriptObject.createObject().cast();
        }

        protected Component() {
        }

        public final native void setDataSource(String dataSource) /*-{
                                                                  this.datasource = dataSource;
                                                                  }-*/;

        public final native void setGadget(String gadget) /*-{
                                                          this.gadget = gadget;
                                                          }-*/;

        public final void setType(Type type) {
            setType(type.typeCode);
        }

        public final native void setUserprefs(String userprefs) /*-{
                                                                this.userprefs = userprefs;
                                                                }-*/;

        private native void setType(String type) /*-{
                                                 this.type = type;
                                                 }-*/;
    }

    public Toolbar() {
        super();
        div = Document.get().createDivElement();
        setElement(div);
        setStyleName("gwt-viz-container");
        components = createComponents();
    }

    public void addComponent(Component value) {
        components.set(components.length(), value);
    }

    @Override
    protected void onLoad() {
        nativeDraw(div, components);
    }

    private native JsArray<Component> createComponents() /*-{
                                                         return [];
                                                         }-*/;

    private native void nativeDraw(Element div, JsArray<Component> components) /*-{
                                                                               $wnd.google.visualization.drawToolbar(div, components);
                                                                               }-*/;
}