com.allen_sauer.gwt.dnd.demo.client.ExampleTabPanel.java Source code

Introduction

Here is the source code for com.allen_sauer.gwt.dnd.demo.client.ExampleTabPanel.java

Source

/*
 * Copyright 2009 Fred Sauer
 * 
 * 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.allen_sauer.gwt.dnd.demo.client;

import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;

import com.allen_sauer.gwt.dnd.client.util.DOMUtil;
import com.allen_sauer.gwt.dnd.client.util.StringUtil;
import com.allen_sauer.gwt.dnd.demo.client.example.Example;
import com.allen_sauer.gwt.dnd.demo.client.ui.MultiRowTabPanel;
import com.allen_sauer.gwt.dnd.demo.client.util.GWTUtil;

/*
 * * {@link MultiRowTabPanel} which uses a {@link VerticalPanel} to provide a description for each
 * example.
 */
public final class ExampleTabPanel extends MultiRowTabPanel {
    private static final String CSS_DEMO_EXAMPLE_DESCRIPTION = "demo-example-description";

    private static final String CSS_DEMO_EXAMPLE_TAB_PANEL_TAB_BAR = "demo-ExampleTabPanel-tab-bar";

    /**
     * Describe an example in a consistent way by including a description and the name of the
     * {@link com.allen_sauer.gwt.dnd.client.drop.DropController} used in the example.
     * 
     * @param classes the primary DropController used in this example
     * @param description a brief description of the example
     * @return HTML widget describing the example
     */
    public static HTML describe(Class<?>[] classes, String description) {
        String sourceCodeLinks = "";
        for (int i = 0; i < classes.length; i++) {
            sourceCodeLinks += GWTUtil.getClassAnchorHTML(classes[i]);
            if (i < classes.length - 1) {
                sourceCodeLinks += ", ";
            }
        }
        HTML html = new HTML("<i>" + description + "</i><br>\n(Source code: " + sourceCodeLinks + ")");
        html.addStyleName(CSS_DEMO_EXAMPLE_DESCRIPTION);
        return html;
    }

    public ExampleTabPanel(int widgetsPerRow) {
        super(widgetsPerRow);
        addTabBarStyleName(CSS_DEMO_EXAMPLE_TAB_PANEL_TAB_BAR);
    }

    /**
     * Add another example to demonstrate.
     * 
     * @param example the example panel to add
     */
    public void add(Example example) {
        VerticalPanel verticalPanel = new VerticalPanel();
        verticalPanel.add(describe(example.getInvolvedClasses(), example.getDescription()));
        verticalPanel.add(example);
        Label tabLabel = new Label("Demo " + (getTabCount() + 1));
        tabLabel.setWordWrap(false);
        String title = DOMUtil
                .adjustTitleForBrowser(StringUtil.getShortTypeName(example) + "\n" + example.getDescription());
        tabLabel.setTitle(title);
        add(verticalPanel, tabLabel, example.getHistoryToken(),
                Window.getTitle() + " - " + example.getHistoryToken());
    }
}