org.pentaho.ui.xul.gwt.widgets.GwtTabWidget.java Source code

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Here is the source code for org.pentaho.ui.xul.gwt.widgets.GwtTabWidget.java

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/*!
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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 GNU Lesser General Public License for more details.
 *
 * Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.ui.xul.gwt.widgets;

import org.pentaho.gwt.widgets.client.utils.ElementUtils;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HasVerticalAlignment;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.TabPanel;
import com.google.gwt.user.client.ui.Widget;

public class GwtTabWidget extends HorizontalPanel {
    private TabPanel tabPanel;
    private Widget tabContent;
    private Label textLabel = new Label();
    private HorizontalPanel panel = new HorizontalPanel();
    private String fullText;

    public GwtTabWidget(String text, String tooltip, final TabPanel tabPanel, final Widget tabContent) {
        this.tabPanel = tabPanel;
        this.tabContent = tabContent;
        this.fullText = text;
        setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
        panel.setStyleName("pentaho-tabWidget"); //$NON-NLS-1$
        Image leftCapImage = new Image(GWT.getModuleBaseURL() + "images/spacer.gif");
        leftCapImage.setStylePrimaryName("tab-spacer");

        setLabelText(text);
        setLabelTooltip(tooltip);
        textLabel.setStyleName("pentaho-tabWidgetLabel");
        textLabel.setWordWrap(false);
        tabPanel.addSelectionHandler(new SelectionHandler<Integer>() {

            public void onSelection(SelectionEvent<Integer> event) {
                int tabIndex = event.getSelectedItem();
                ElementUtils.blur(getElement().getParentElement());
                if (tabIndex == tabPanel.getWidgetIndex(tabContent)) {
                    panel.addStyleName("pentaho-tabWidget-selected"); //$NON-NLS-1$
                } else {
                    panel.removeStyleName("pentaho-tabWidget-selected"); //$NON-NLS-1$
                }
            }
        });

        panel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
        panel.add(textLabel);
        add(leftCapImage);
        leftCapImage.getElement().getParentElement().setAttribute("class", "tab-spacer-wrapper");
        add(panel);
        sinkEvents(Event.ONDBLCLICK | Event.ONMOUSEUP);
    }

    public String getText() {
        return fullText;
    }

    public void setLabelText(String text) {
        String trimmedText = text.substring(0, Math.min(18, text.length()));
        if (!trimmedText.equals(text)) {
            trimmedText += ".."; //$NON-NLS-1$
        }
        textLabel.setText(trimmedText);
    }

    public void setLabelTooltip(String tooltip) {
        textLabel.setTitle(tooltip);
    }
}