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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.search.internal.ui;
import java.net.URL;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.search.internal.ui.util.ExceptionHandler;
/**
* Proxy that represents a sorter.
*/
class SorterDescriptor {
public final static String SORTER_TAG= "sorter"; //$NON-NLS-1$
private final static String ID_ATTRIBUTE= "id"; //$NON-NLS-1$
private final static String PAGE_ID_ATTRIBUTE= "pageId"; //$NON-NLS-1$
private final static String ICON_ATTRIBUTE= "icon"; //$NON-NLS-1$
private final static String CLASS_ATTRIBUTE= "class"; //$NON-NLS-1$
private final static String LABEL_ATTRIBUTE= "label"; //$NON-NLS-1$
private final static String TOOLTIP_ATTRIBUTE= "tooltip"; //$NON-NLS-1$
private IConfigurationElement fElement;
/**
* Creates a new sorter node with the given configuration element.
*/
public SorterDescriptor(IConfigurationElement element) {
fElement= element;
}
/**
* Creates a new sorter from this node.
*/
public ViewerSorter createObject() {
try {
return (ViewerSorter)fElement.createExecutableExtension(CLASS_ATTRIBUTE);
} catch (CoreException ex) {
ExceptionHandler.handle(ex, SearchMessages.getString("Search.Error.createSorter.title"), SearchMessages.getString("Search.Error.createSorter.message")); //$NON-NLS-2$ //$NON-NLS-1$
return null;
} catch (ClassCastException ex) {
ExceptionHandler.displayMessageDialog(ex, SearchMessages.getString("Search.Error.createSorter.title"), SearchMessages.getString("Search.Error.createSorter.message")); //$NON-NLS-2$ //$NON-NLS-1$
return null;
}
}
//---- XML Attribute accessors ---------------------------------------------
/**
* Returns the sorter's id.
*/
public String getId() {
return fElement.getAttribute(ID_ATTRIBUTE);
}
/**
* Returns the sorter's image
*/
public ImageDescriptor getImage() {
String imageName= fElement.getAttribute(ICON_ATTRIBUTE);
if (imageName == null)
return null;
URL url;
try {
url= new URL(fElement.getDeclaringExtension().getDeclaringPluginDescriptor().getInstallURL(), imageName);
} catch (java.net.MalformedURLException ex) {
ExceptionHandler.log(ex, SearchMessages.getString("Search.Error.createSorter.message")); //$NON-NLS-1$
return null;
}
return ImageDescriptor.createFromURL(url);
}
/**
* Returns the sorter's label.
*/
public String getLabel() {
return fElement.getAttribute(LABEL_ATTRIBUTE);
}
/**
* Returns the sorter's preferred size
*/
public String getToolTipText() {
return fElement.getAttribute(TOOLTIP_ATTRIBUTE);
}
/**
* Returns the sorter's preferred size
*/
public String getPageId() {
return fElement.getAttribute(PAGE_ID_ATTRIBUTE);
}
}
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