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/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. 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:
* Uwe Stieber (Wind River) - initial API and implementation
*******************************************************************************/
package org.eclipse.tm.te.tcf.filesystem.controls;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.graphics.Image;
import org.eclipse.tm.te.tcf.filesystem.activator.UIPlugin;
import org.eclipse.tm.te.tcf.filesystem.internal.ImageConsts;
import org.eclipse.tm.te.tcf.filesystem.model.FSTreeNode;
import org.eclipse.tm.te.ui.views.interfaces.IUIConstants;
import org.eclipse.ui.IEditorRegistry;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.navigator.CommonNavigator;
/**
* Target Explorer: File system tree control label provider implementation.
*/
public class FSTreeLabelProvider extends LabelProvider implements ITableLabelProvider {
private IEditorRegistry fEditorRegistry = null;
private static final SimpleDateFormat DATE_MODIFIED_FORMAT = new SimpleDateFormat("dd.MM.yyyy HH:mm"); //$NON-NLS-1$
private static final DecimalFormat SIZE_FORMAT = new DecimalFormat();
// Reference to the parent tree viewer
private TreeViewer fParentViewer;
/**
* Constructor.
*/
public FSTreeLabelProvider() {
this(null);
}
/**
* Constructor.
*
* @param viewer The tree viewer or <code>null</code>.
*/
public FSTreeLabelProvider(TreeViewer viewer) {
super();
fParentViewer = viewer;
}
/**
* Returns the parent tree viewer instance.
*
* @return The parent tree viewer or <code>null</code>.
*/
public final TreeViewer getParentViewer() {
if (fParentViewer == null) {
if (PlatformUI.getWorkbench() != null && PlatformUI.getWorkbench().getActiveWorkbenchWindow() != null
&& PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage() != null) {
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
IViewPart part = page.findView(IUIConstants.ID_EXPLORER);
if (part instanceof CommonNavigator) {
fParentViewer = ((CommonNavigator)part).getCommonViewer();
}
}
}
return fParentViewer;
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
*/
@Override
public String getText(Object element) {
if (element instanceof FSTreeNode) {
return ((FSTreeNode)element).name;
}
return super.getText(element);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
*/
@Override
public Image getImage(Object element) {
if (element != null) {
boolean isExpanded = getParentViewer().getExpandedState(element);
if (element instanceof FSTreeNode) {
FSTreeNode node = (FSTreeNode)element;
if ("FSRootDirNode".equals(node.type)) {//$NON-NLS-1$
return isExpanded ? UIPlugin.getImage(ImageConsts.IMAGE_ROOT_DRIVE_OPEN) : UIPlugin.getImage(ImageConsts.IMAGE_ROOT_DRIVE);
} else if ("FSDirNode".equals(node.type)) { //$NON-NLS-1$
return isExpanded ? PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER) : UIPlugin.getImage(ImageConsts.IMAGE_FOLDER);
} else if ("FSFileNode".equals(node.type)) { //$NON-NLS-1$
String key = node.name;
Image image = UIPlugin.getImage(key);
if (image == null) {
ImageDescriptor descriptor = getEditorRegistry().getImageDescriptor(key);
if (descriptor == null) descriptor = getEditorRegistry().getSystemExternalEditorImageDescriptor(key);
if (descriptor != null) UIPlugin.getDefault().getImageRegistry().put(key, descriptor);
image = UIPlugin.getImage(key);
}
return image;
}
}
}
return super.getImage(element);
}
/**
* Returns the workbench's editor registry.
*/
private IEditorRegistry getEditorRegistry() {
if (fEditorRegistry == null) {
IWorkbench workbench = PlatformUI.getWorkbench();
if (workbench != null) fEditorRegistry = workbench.getEditorRegistry();
}
return fEditorRegistry;
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int)
*/
public Image getColumnImage(Object element, int columnIndex) {
if (columnIndex == 0) return getImage(element);
return null;
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int)
*/
public String getColumnText(Object element, int columnIndex) {
if (columnIndex == 0) return getText(element);
if (element instanceof FSTreeNode) {
FSTreeNode node = (FSTreeNode)element;
if (node.type != null && node.type.startsWith("FS")) { //$NON-NLS-1$
// Pending nodes does not have column texts at all
if (node.type.endsWith("PendingNode")) return ""; //$NON-NLS-1$ //$NON-NLS-2$
boolean isDirNode = node.type.endsWith("DirNode"); //$NON-NLS-1$
switch (columnIndex) {
case 1:
// Directory nodes does not have a size
if (!isDirNode) {
if (node.attr != null) {
return SIZE_FORMAT.format(node.attr.size / 1024) + " KB"; //$NON-NLS-1$
}
}
break;
case 2:
if (node.attr != null) {
return DATE_MODIFIED_FORMAT.format(new Date(node.attr.mtime));
}
break;
}
}
}
return ""; //$NON-NLS-1$
}
}
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