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/*******************************************************************************
* Copyright (c) 2000, 2004 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.launcher;
import org.eclipse.core.runtime.*;
import org.eclipse.swt.graphics.*;
/**
* ItemDescriptor collects information about a launch item.
*/
class ItemDescriptor {
private String id;
private String name;
private String description;
private Image icon;
private String view;
private String mainType;
private String pluginId;
private IConfigurationElement element;
/**
* Constructs an ItemDescriptor.
*
* @param id the id
* @param name the name
* @param description the description
* @param icon the icon
* @param view the host view may be null if it is a standalone application
* @param mainType the fully qualified class name to run may be null if it is a view
* @param pluginId the name of the plugin which contains the main class
*/
public ItemDescriptor(String id, String name, String description,
Image icon, String view, String mainType, String pluginId, IConfigurationElement element) {
this.id = id;
this.name = name;
this.description = description;
this.icon = icon;
this.view = view;
this.mainType = mainType;
this.pluginId = pluginId;
this.element = element;
}
/**
* Creates and returns an instance of the extension's specified type,
* or <code>null</code> if no type was specified by the extension.
*
* @return an instance of the extension's specified type or <code>null</code>
*/
public Object createItemInstance() throws CoreException {
if (element == null) return null;
return element.createExecutableExtension(LauncherPlugin.LAUNCH_ITEMS_XML_PROGRAM_CLASS);
}
/**
* Returns the ID for this program.
*
* @return the user-specified ID for this program
*/
public String getId() {
return id;
}
/**
* Returns the translated name for the program.
*
* @return the name of the program
*/
public String getName() {
return name;
}
/**
* Returns a short description for the program.
*
* @return a newline-delimited string describing the program, null if no description is available
*/
public String getDescription() {
return description;
}
/**
* Returns an icon for this descriptor
*
* @returns an icon, null if the item is a folder
*/
public Image getIcon() {
return icon;
}
/**
* Returns the host view for the program.
*
* @return the host view, null if the item is a standalone program.
*/
public String getView () {
return view;
}
/**
* Returns the fully qualified class to run
* for the program.
*
* @return the class to run for the program.
*/
public String getMainType () {
return mainType;
}
/**
* Returns the name of the plugin that contains the program.
*
* @return the name of the plugin that contains the program.
*/
public String getPluginId () {
return pluginId;
}
/**
* Determines if an item is a folder.
*
* @return true if the item is a folder
*/
public boolean isFolder() {
return (mainType == null && view == null);
}
/**
* Determines the equality of descriptors.
*
* @return true if this.getId().equalsIgnoreCase(other.getId())
*/
public boolean equals(Object other) {
if (other instanceof ItemDescriptor) {
ItemDescriptor otherDescriptor = (ItemDescriptor) other;
return getId().equalsIgnoreCase(otherDescriptor.getId());
}
return false;
}
/**
* Produces a hashcode.
*
* @return the hashcode
*/
public int hashCode() {
return id.toUpperCase().hashCode();
}
}
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