/******************************************************************************* | |
* Copyright (c) 2006, 2008 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: | |
* Markus Schorn - initial API and implementation | |
* IBM Corporation | |
*******************************************************************************/ | |
/* -- ST-Origin -- | |
* Source folder: org.eclipse.cdt.ui/src | |
* Class: org.eclipse.cdt.internal.ui.callhierarchy.CHLabelProvider | |
* Version: 1.10 | |
*/ | |
package org.eclipse.ptp.internal.rdt.ui.callhierarchy; | |
import java.util.HashMap; | |
import java.util.Iterator; | |
import org.eclipse.cdt.core.model.ICElement; | |
import org.eclipse.cdt.core.model.util.CElementBaseLabels; | |
import org.eclipse.cdt.internal.ui.callhierarchy.CHMessages; | |
import org.eclipse.cdt.internal.ui.callhierarchy.CHMultiDefNode; | |
import org.eclipse.cdt.internal.ui.callhierarchy.CHNode; | |
import org.eclipse.cdt.internal.ui.viewsupport.CElementImageProvider; | |
import org.eclipse.cdt.internal.ui.viewsupport.CUILabelProvider; | |
import org.eclipse.cdt.internal.ui.viewsupport.ImageImageDescriptor; | |
import org.eclipse.cdt.ui.CElementImageDescriptor; | |
import org.eclipse.cdt.ui.CUIPlugin; | |
import org.eclipse.jface.resource.ImageDescriptor; | |
import org.eclipse.jface.viewers.IColorProvider; | |
import org.eclipse.jface.viewers.LabelProvider; | |
import org.eclipse.osgi.util.NLS; | |
import org.eclipse.swt.SWT; | |
import org.eclipse.swt.graphics.Color; | |
import org.eclipse.swt.graphics.Image; | |
import org.eclipse.swt.graphics.Point; | |
import org.eclipse.swt.widgets.Display; | |
public class CHLabelProvider extends LabelProvider implements IColorProvider { | |
private final static int LABEL_OPTIONS_SIMPLE= CElementBaseLabels.ALL_FULLY_QUALIFIED | CElementBaseLabels.M_PARAMETER_TYPES; | |
private final static int LABEL_OPTIONS_SHOW_FILES= LABEL_OPTIONS_SIMPLE | CElementBaseLabels.MF_POST_FILE_QUALIFIED; | |
private CUILabelProvider fCLabelProvider= new CUILabelProvider(LABEL_OPTIONS_SIMPLE, 0); | |
private CHContentProvider fContentProvider; | |
private HashMap<String, Image> fCachedImages= new HashMap<String, Image>(); | |
private Color fColorInactive; | |
public CHLabelProvider(Display display, CHContentProvider cp) { | |
fColorInactive= display.getSystemColor(SWT.COLOR_DARK_GRAY); | |
fContentProvider= cp; | |
} | |
@Override | |
public Image getImage(Object element) { | |
if (element instanceof CHNode) { | |
CHNode node= (CHNode) element; | |
Image image= null; | |
if (node.isInitializer()) { | |
ImageDescriptor desc= CElementImageProvider.getFunctionImageDescriptor(); | |
image= CUIPlugin.getImageDescriptorRegistry().get(desc); | |
} | |
else { | |
ICElement decl= node.getOneRepresentedDeclaration(); | |
if (decl != null) { | |
image= fCLabelProvider.getImage(decl); | |
} | |
} | |
if (image != null) { | |
return decorateImage(image, node); | |
} | |
} | |
return super.getImage(element); | |
} | |
@Override | |
public String getText(Object element) { | |
if (element instanceof CHNode) { | |
CHNode node= (CHNode) element; | |
ICElement decl= node.getOneRepresentedDeclaration(); | |
if (decl != null) { | |
String label; | |
if (node.isMultiDef()) { | |
int options= fCLabelProvider.getTextFlags(); | |
fCLabelProvider.setTextFlags(LABEL_OPTIONS_SIMPLE); | |
label= fCLabelProvider.getText(decl); | |
fCLabelProvider.setTextFlags(options); | |
} | |
else { | |
label= fCLabelProvider.getText(decl); | |
if (node.isInitializer()) { | |
label= addInitializerDecoration(label); | |
} | |
} | |
int refCount= node.getReferenceCount(); | |
if (refCount > 1) { | |
label += NLS.bind(" ({0} {1})", new Integer(refCount), CHMessages.CHLabelProvider_matches); //$NON-NLS-1$ | |
} | |
return label; | |
} | |
} | |
return super.getText(element); | |
} | |
private String addInitializerDecoration(String label) { | |
int i= 0; | |
char[] content= label.toCharArray(); | |
for (i = 0; i < content.length; i++) { | |
char c = content[i]; | |
if (c == '-' || Character.isWhitespace(c)) { | |
break; | |
} | |
} | |
StringBuffer buf= new StringBuffer(label.length() + 10); | |
buf.append("{init "); //$NON-NLS-1$ | |
buf.append(content, 0, i); | |
buf.append("}()"); //$NON-NLS-1$ | |
buf.append(content, i, content.length-i); | |
return buf.toString(); | |
} | |
@Override | |
public void dispose() { | |
fCLabelProvider.dispose(); | |
for (Iterator<Image> iter = fCachedImages.values().iterator(); iter.hasNext();) { | |
Image image = iter.next(); | |
image.dispose(); | |
} | |
fCachedImages.clear(); | |
super.dispose(); | |
} | |
private Image decorateImage(Image image, CHNode node) { | |
int flags= 0; | |
if (node.isRecursive()) { | |
flags |= CElementImageDescriptor.RECURSIVE_RELATION; | |
} | |
else if (fContentProvider.hasChildren(node)) { | |
if (fContentProvider.getComputeReferencedBy()) { | |
flags |= CElementImageDescriptor.REFERENCED_BY; | |
} | |
else { | |
if (node.isMultiDef()) { | |
flags |= CElementImageDescriptor.RELATES_TO_MULTIPLE; | |
} | |
else { | |
flags |= CElementImageDescriptor.RELATES_TO; | |
} | |
} | |
} | |
if (node.isReadAccess()) { | |
flags |= CElementImageDescriptor.READ_ACCESS; | |
} | |
if (node.isWriteAccess()) { | |
flags |= CElementImageDescriptor.WRITE_ACCESS; | |
} | |
String key= image.toString()+String.valueOf(flags); | |
Image result= fCachedImages.get(key); | |
if (result == null) { | |
ImageDescriptor desc= new CElementImageDescriptor( | |
new ImageImageDescriptor(image), flags, new Point(20,16)); | |
result= desc.createImage(); | |
fCachedImages.put(key, result); | |
} | |
return result; | |
} | |
public Color getBackground(Object element) { | |
return null; | |
} | |
public Color getForeground(Object element) { | |
if (element instanceof CHMultiDefNode) { | |
return fColorInactive; | |
} | |
return null; | |
} | |
public void setShowFiles(boolean show) { | |
fCLabelProvider.setTextFlags(show ? LABEL_OPTIONS_SHOW_FILES : LABEL_OPTIONS_SIMPLE); | |
} | |
} |