com.iw.plugins.spindle.ui.TableViewerWithToolTips.java Source code

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Here is the source code for com.iw.plugins.spindle.ui.TableViewerWithToolTips.java

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/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Spindle, an Eclipse Plugin for Tapestry.
 *
 * The Initial Developer of the Original Code is
 * Intelligent Works Incorporated.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * 
 *  glongman@intelligentworks.com
 *
 * ***** END LICENSE BLOCK ***** */
package com.iw.plugins.spindle.ui;

import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.Tree;

public class TableViewerWithToolTips extends TableViewer {

    private ToolTipHandler toolTipHandler;
    private IToolTipProvider tipProvider;

    /**
     * Constructor for TreeViewerWithToolTips
     */
    public TableViewerWithToolTips(Composite parent) {
        super(parent);
    }

    /**
     * Constructor for TreeViewerWithToolTips
     */
    public TableViewerWithToolTips(Composite parent, int flags) {
        super(parent, flags);
    }

    public TableViewerWithToolTips(Table table) {
        super(table);
    };

    protected void hookControl(Control control) {
        super.hookControl(control);
        toolTipHandler = new TableViewerToolTipHandler(control.getShell());
        toolTipHandler.activateHoverHelp(control);
    }

    public void setTooltipsEnabled(boolean flag) {
        if (toolTipHandler != null) {
            toolTipHandler.setHandlerEnabled(flag);
        }
    }

    public boolean isTooltipsEnabled() {
        if (toolTipHandler != null) {
            return toolTipHandler.isHandlerEnabled();
        }
        return false;
    }

    /**
     * Constructor for TreeViewerWithToolTips
     */
    public TableViewerWithToolTips(Tree tree) {
        super(tree);
    }

    public void setToolTipProvider(IToolTipProvider tipProvider) {
        this.tipProvider = tipProvider;
    }

    public IToolTipProvider getToolTipProvider() {
        return this.tipProvider;
    }

    private String getTVToolTipText(Item item) {
        if (tipProvider != null) {
            return tipProvider.getToolTipText(item.getData());
        }
        return null;
    }

    protected class TableViewerToolTipHandler extends ToolTipHandler {

        public TableViewerToolTipHandler(Shell parent) {
            super(parent);
        }

        protected String getToolTipText(Object object) {
            String result = getTVToolTipText((Item) object);
            if (result == null) {
                result = super.getToolTipText(object);
            }
            return result;
        }

    }

}