plugins/org.eclipse.actf.visualization.ui.report/src/org/eclipse/actf/visualization/ui/report/table/SrcViewerForPT.java

/*******************************************************************************
 * Copyright (c) 2004, 2008 IBM Corporation and Others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Kentarou FUKUDA - initial API and implementation
 *******************************************************************************/
package org.eclipse.actf.visualization.ui.report.table;

import java.io.File;

import org.eclipse.actf.visualization.eval.EvaluationPreferencesUtil;
import org.eclipse.actf.visualization.eval.problem.HighlightTargetSourceInfo;
import org.eclipse.actf.visualization.ui.report.ReportPlugin;
import org.eclipse.actf.visualization.ui.report.srcviewer.SrcViewer;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;




public class SrcViewerForPT {

    //TODO viewpart, SourceViewer
    
    private static SrcViewerForPT INSTANCE = null;

    private static SrcViewer _srcViewer;

    private static Shell _srcViewerShell;

    private Shell _shell = null;

    private boolean srcChanged;
    
    private File curTarget;

    /**
     * @param pt
     * @param display
     */
    private SrcViewerForPT(Shell shell) {
        super();
        this._shell = shell;
        initSrcViewer();
    }

    public static SrcViewerForPT initSrcViewerForPT(Shell parent) {
        if (INSTANCE != null) {
            // TODO close
            // INSTANCE.PARENT.removeShellListener();
        }

        INSTANCE = new SrcViewerForPT(parent);
        return (INSTANCE);
    }

    public static SrcViewerForPT getInstance() {
        return (INSTANCE);
    }

    private void initSrcViewer() {
        srcChanged = true;

        if (_shell != null) {
            _shell.addShellListener(new ShellAdapter() {
                public void shellClosed(ShellEvent arg0) {
                    if (_srcViewerShell != null && !_srcViewerShell.isDisposed()) {
                        _srcViewerShell.dispose();
                    }
                }
            });
        }
    }

    public void openSrcViewer() {
        if (null == _srcViewerShell || _srcViewerShell.isDisposed()) {
            Display display = _shell.getDisplay();
            if (null == display) {
                display = Display.getDefault();
            }
            _srcViewerShell = new Shell(display);
            _srcViewerShell.setLayout(new FillLayout());
            _srcViewerShell.setImage(ReportPlugin.imageDescriptorFromPlugin(ReportPlugin.PLUGIN_ID, "icons/excla_squ.png").createImage());
            _srcViewerShell.setText("HTML Source");
            _srcViewer = new SrcViewer(_srcViewerShell);
            _srcViewerShell.setSize(600, 750);
            _srcViewerShell.setFocus();
            _srcViewerShell.open();

            _srcViewerShell.addShellListener(new ShellAdapter() {
                public void shellClosed(ShellEvent arg0) {
                    _srcViewer.closeSearchDlgShell();
                }
            });

            srcChanged = true;

        } else if (!_srcViewerShell.isDisposed()) {
            if (_srcViewerShell.getMinimized()) {
                _srcViewerShell.setMinimized(false);
            }
            _srcViewerShell.forceActive();
        }
    }

    public void highlightSrcViewer(HighlightTargetSourceInfo[] sourceInfos, File target) {
        if (_srcViewerShell != null && !_srcViewerShell.isDisposed() && EvaluationPreferencesUtil.isOriginalDOM()) {

            if(curTarget!=target){
                srcChanged =true;
                updateSrcViewer(target);
            }
            
            //updateSrcViewer(currentLayout);
            _srcViewer.clearHighlight();

            for (int i = 0; i < sourceInfos.length; i++) {
                HighlightTargetSourceInfo curInfo = sourceInfos[i];

                if (curInfo.getStartColumn() < 0 || curInfo.getEndColumn() < 0) {
                    _srcViewer.highlightLines(curInfo.getStartLine(),curInfo.getEndLine());
                } else {
                    _srcViewer.highlight(curInfo.getStartLine(),curInfo.getStartColumn(),curInfo.getEndLine(),curInfo.getEndColumn());
                }

            }
        }

    }

    public void updateSrcViewer(File target) {
        if (_srcViewerShell != null && !_srcViewerShell.isDisposed() && srcChanged) {
            try {
                _srcViewer.openFile(target);
                curTarget = target;
            } catch (Exception e) {
                // e.printStackTrace();
                _srcViewer.setText(""); //$NON-NLS-1$
            }
            srcChanged = false;
        }
    }

    /**
     * @param srcChanged
     *            The srcChanged to set.
     */
    public void setSrcChanged(boolean srcChanged) {
        this.srcChanged = srcChanged;
    }
}