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/* |
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* JSampler - a java front-end for LinuxSampler |
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* |
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* Copyright (C) 2005, 2006 Grigor Kirilov Iliev |
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* |
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* This file is part of JSampler. |
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* |
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* JSampler is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 |
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* as published by the Free Software Foundation. |
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* |
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* JSampler is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with JSampler; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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|
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|
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package org.jsampler.view; |
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|
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import java.net.URL; |
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|
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import java.util.StringTokenizer; |
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import java.util.Vector; |
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|
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import java.util.jar.Attributes; |
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import java.util.jar.Manifest; |
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|
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import java.util.logging.Level; |
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|
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import org.jsampler.CC; |
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import org.jsampler.HF; |
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|
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|
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/** |
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* This class provides information about the available views in the current distribution. |
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* @author Grigor Iliev |
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*/ |
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public class JSViews { |
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private static Vector<ViewEntry> viewEntries = new Vector<ViewEntry>(); |
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private static String currentView = null; |
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private static String defaultView = null; |
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|
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/** Forbits instantiation of JSViews */ |
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private |
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JSViews() { } |
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|
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/** |
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* Gets a list of all available views. |
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* @return A list of all available views. |
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*/ |
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public static String[] |
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getAvailableViews() { |
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String[] views = new String[viewEntries.size()]; |
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for(int i = 0; i < viewEntries.size(); i++) views[i] = viewEntries.get(i).name; |
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return views; |
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} |
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|
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/** |
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* Gets the current view name of this distribution. |
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* @return The current view name of this distribution. |
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*/ |
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public static String |
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getCurrentView() { return currentView; } |
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|
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/** |
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* Gets the default view name of this distribution. |
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* @return The default view name of this distribution. |
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*/ |
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public static String |
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getDefaultView() { return defaultView; } |
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|
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/** |
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* Changes the current view. |
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* This method should be invoked only from the event-dispatching thread. |
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* @param viewName The new view to be used. |
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*/ |
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public static void |
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setView(String viewName) { |
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if(viewName == null) { |
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CC.getLogger().info("viewName is null!"); |
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return; |
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} |
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|
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ViewEntry entry = null; |
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|
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for(ViewEntry ve : viewEntries) { |
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if(viewName.equals(ve.name)) { |
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entry = ve; |
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break; |
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} |
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} |
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|
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if(entry == null) { |
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CC.getLogger().info("Missing view: " + viewName); |
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return; |
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} |
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|
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if(CC.getMainFrame() != null) CC.getMainFrame().setVisible(false); |
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|
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try { CC.setMainFrame((JSMainFrame) Class.forName(entry.mainFrame).newInstance()); } |
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catch(Exception e) { |
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CC.getLogger().info(HF.getErrorMessage(e)); |
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if(CC.getMainFrame() != null) CC.getMainFrame().setVisible(true); |
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return; |
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} |
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|
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try { CC.setProgressIndicator ( |
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(JSProgress)Class.forName(entry.progressIndicator).newInstance() |
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);} catch(Exception e) { CC.getLogger().info(HF.getErrorMessage(e)); } |
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|
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CC.getMainFrame().setVisible(true); |
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|
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currentView = viewName; |
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} |
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|
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/** |
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* Parses the manifest file <code>views.mf</code> to gather information |
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* about the available views in this JSampler distribution. |
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*/ |
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public static void |
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parseManifest() { |
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viewEntries.removeAllElements(); |
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|
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try { |
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Manifest m = new Manifest(JSViews.class.getResourceAsStream("views.mf")); |
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String s = m.getMainAttributes().getValue("JS-Views"); |
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if(s == null) { |
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CC.getLogger().warning("Missing manifest attribute: JS-Views"); |
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return; |
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} |
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|
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StringTokenizer st = new StringTokenizer(s); |
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while(st.hasMoreTokens()) { |
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s = st.nextToken(); |
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Attributes a = m.getAttributes(s); |
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|
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if(a == null) { |
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CC.getLogger().warning("Missing manifest entry: " + s); |
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continue; |
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} |
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|
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ViewEntry ve = new ViewEntry(); |
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ve.name = a.getValue("View-Name"); |
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ve.mainFrame = a.getValue("Main-Frame"); |
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ve.progressIndicator = a.getValue("Progress-Indicator"); |
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|
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viewEntries.addElement(ve); |
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} |
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|
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s = m.getMainAttributes().getValue("JS-Default-View"); |
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Attributes a = m.getAttributes(s); |
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if(a != null) defaultView = a.getValue("View-Name"); |
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} catch(Exception x) { |
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CC.getLogger().log(Level.INFO, HF.getErrorMessage(x), x); |
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} |
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} |
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|
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private static class ViewEntry { |
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String name; |
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String mainFrame; |
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String progressIndicator; |
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} |
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} |