org.eclipse.cdt.debug.internal.ui.views.executables.SourceFilesLabelProvider.java Source code

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Here is the source code for org.eclipse.cdt.debug.internal.ui.views.executables.SourceFilesLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2008, 2010 Nokia 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:
 * Nokia - Initial API and implementation
 *******************************************************************************/

package org.eclipse.cdt.debug.internal.ui.views.executables;

import com.ibm.icu.text.DateFormat;

import java.util.Date;
import java.util.List;

import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.debug.core.executables.Executable;
import org.eclipse.cdt.debug.core.executables.ExecutablesManager;
import org.eclipse.cdt.debug.core.executables.IExecutablesChangeListener;
import org.eclipse.cdt.ui.CElementLabelProvider;
import org.eclipse.jface.resource.FontDescriptor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.viewers.TreeColumnViewerLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Display;

public class SourceFilesLabelProvider extends TreeColumnViewerLabelProvider implements IExecutablesChangeListener {

    private SourceFilesViewer viewer;

    private LocalResourceManager resourceManager = new LocalResourceManager(JFaceResources.getResources());

    public SourceFilesLabelProvider(SourceFilesViewer viewer) {
        super(new CElementLabelProvider());
        this.viewer = viewer;

        // brute-force clear the cache when executables change
        ExecutablesManager.getExecutablesManager().addExecutablesChangeListener(this);
        viewer.getControl().addDisposeListener(new DisposeListener() {
            @Override
            public void widgetDisposed(DisposeEvent e) {
                ExecutablesManager.getExecutablesManager()
                        .removeExecutablesChangeListener(SourceFilesLabelProvider.this);
            }
        });
    }

    @Override
    public void update(ViewerCell cell) {
        super.update(cell);

        SourceFilesViewer.TranslationUnitInfo tuInfo = null;
        Object element = cell.getElement();
        if (element instanceof ITranslationUnit) {
            tuInfo = SourceFilesViewer.fetchTranslationUnitInfo((Executable) viewer.getInput(), element);
        }

        int orgColumnIndex = cell.getColumnIndex();

        if (orgColumnIndex == 0) {
            if (element instanceof String) {
                cell.setText((String) element);
                Font italicFont = resourceManager
                        .createFont(FontDescriptor.createFrom(viewer.getTree().getFont()).setStyle(SWT.ITALIC));
                cell.setFont(italicFont);
            } else {
                cell.setFont(viewer.getTree().getFont());
            }
        } else if (orgColumnIndex == 1) {
            cell.setText(null);
            if (tuInfo != null) {
                if (tuInfo.location != null) {
                    cell.setText(tuInfo.location.toOSString());
                    if (tuInfo.exists)
                        cell.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
                    else
                        cell.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_GRAY));
                }
            }
            cell.setImage(null);
        } else if (orgColumnIndex == 2) {
            cell.setText(null);
            if (tuInfo != null && tuInfo.originalLocation != null) {
                cell.setText(tuInfo.originalLocation.toOSString());
                if (tuInfo.originalExists)
                    cell.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
                else
                    cell.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_GRAY));
            }
            cell.setImage(null);
        } else if (orgColumnIndex == 3) {
            cell.setText(null);
            if (tuInfo != null) {
                if (tuInfo.exists) {
                    cell.setText(Long.toString(tuInfo.fileLength));
                }
            }
            cell.setImage(null);
        } else if (orgColumnIndex == 4) {
            cell.setText(null);
            if (tuInfo != null) {
                if (tuInfo.exists) {
                    String dateTimeString = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT)
                            .format(new Date(tuInfo.lastModified));
                    cell.setText(dateTimeString);
                }
            }
            cell.setImage(null);
        } else if (orgColumnIndex == 5) {
            cell.setText(null);
            if (tuInfo != null) {
                if (tuInfo.location != null) {
                    String fileExtension = tuInfo.location.getFileExtension();
                    if (fileExtension != null)
                        cell.setText(fileExtension.toLowerCase());
                }
            }
            cell.setImage(null);
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.cdt.debug.core.executables.IExecutablesChangeListener#executablesListChanged()
     */
    @Override
    public void executablesListChanged() {
        SourceFilesViewer.flushTranslationUnitCache();
    }

    /* (non-Javadoc)
     * @see org.eclipse.cdt.debug.core.executables.IExecutablesChangeListener#executablesChanged(java.util.List)
     */
    @Override
    public void executablesChanged(List<Executable> executables) {
        // no mapping of executable -> TU maintained; just kill all for now
        SourceFilesViewer.flushTranslationUnitCache();
    }

}