jsampler/view/JSMainFrame.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2007 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.view;

import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.Frame;

import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import java.util.Vector;
import java.util.logging.Level;

import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.KeyStroke;

import org.jsampler.CC;
import org.jsampler.JSampler;
import org.jsampler.Prefs;
import org.jsampler.Server;

import org.jsampler.event.SamplerChannelListEvent;
import org.jsampler.event.SamplerChannelListListener;


/**
 * Defines the skeleton of a JSampler's main frame.
 * @author Grigor Iliev
 */
public abstract class JSMainFrame extends JFrame {
        private final Vector<JSChannelsPane> chnPaneList = new Vector<JSChannelsPane>();
        private boolean autoUpdateChannelListUI = true;
        
        /** Creates a new instance of <code>JSMainFrame</code>. */
        public
        JSMainFrame() {
                super(JSampler.NAME + ' ' + JSampler.VERSION);
                
                setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
                addWindowListener(new WindowAdapter() {
                        public void
                        windowClosing(WindowEvent we) { onWindowClose(); }
                });
                
                CC.getSamplerModel().addSamplerChannelListListener(new EventHandler());
                
                getRootPane().getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put (
                        KeyStroke.getKeyStroke(KeyEvent.VK_G, KeyEvent.CTRL_MASK | KeyEvent.SHIFT_MASK),
                        "RunGarbageCollector"
                );
                
                getRootPane().getActionMap().put ("RunGarbageCollector", new AbstractAction() {
                        public void
                        actionPerformed(ActionEvent e) {
                                System.gc();
                        }
                });
        }
        
        /**
         * Invoked when this window is about to close.
         * Don't forget to call <code>super.onWindowClose()</code> at the end,
         * when override this method.
         */
        protected void
        onWindowClose() {
                CC.cleanExit();
        }
        
        /**
         * Invoked on startup when no JSampler home directory is specified
         * or the specified JSampler home directory doesn't exist.
         * This method should ask the user to specify a JSampler
         * home directory and then set the specified JSampler home directory using
         * {@link org.jsampler.CC#setJSamplerHome} method.
         * @see org.jsampler.CC#getJSamplerHome
         * @see org.jsampler.CC#setJSamplerHome
         */
        public abstract void installJSamplerHome();
        
        /**
         * Shows a detailed error information about the specified exception.
         */
        public abstract void showDetailedErrorMessage(Frame owner, String err, String details);
        
        /**
         * Shows a detailed error information about the specified exception.
         */
        public abstract void showDetailedErrorMessage(Dialog owner, String err, String details);
        
        /**
         * Returns a list containing all <code>JSChannelsPane</code>s added to the view.
         * @return A list containing all <code>JSChannelsPane</code>s added to the view.
         * @see #addChannelsPane
         * @see #removeChannelsPane
         */
        public Vector<JSChannelsPane>
        getChannelsPaneList() { return chnPaneList; }
        
        /**
         * Return the <code>JSChannelsPane</code> at the specified position.
         * @param idx The position of the <code>JSChannelsPane</code> to be returned.
         * @return The <code>JSChannelsPane</code> at the specified position.
         */
        public JSChannelsPane
        getChannelsPane(int idx) { return chnPaneList.get(idx); }
        
        /**
         * Adds the specified <code>JSChannelsPane</code> to the view.
         * @param chnPane The <code>JSChannelsPane</code> to be added.
         */
        public void
        addChannelsPane(JSChannelsPane chnPane) { chnPaneList.add(chnPane); }
        
        /**
         * Removes the specified <code>JSChannelsPane</code> from the view.
         * Override this method to remove <code>chnPane</code> from the view,
         * and don't forget to call <code>super.removeChannelsPane(chnPane);</code>.
         * @param chnPane The <code>JSChannelsPane</code> to be removed.
         * @return <code>true</code> if the specified code>JSChannelsPane</code>
         * is actually removed from the view, <code>false</code> otherwise.
         */
        public boolean
        removeChannelsPane(JSChannelsPane chnPane) { return chnPaneList.remove(chnPane); }
        
        /**
         * Gets the current number of <code>JSChannelsPane</code>s added to the view.
         * @return The current number of <code>JSChannelsPane</code>s added to the view.
         */
        public int
        getChannelsPaneCount() { return chnPaneList.size(); }
        
        /**
         * Inserts the specified <code>JSChannelsPane</code> at the specified position
         * in the view and in the code>JSChannelsPane</code> list.
         * Where and how this pane will be shown depends on the view/GUI implementation.
         * Note that some GUI implementation may have only one pane containing sampler channels.
         * @param pane The <code>JSChannelsPane</code> to be inserted.
         * @param idx Specifies the position of the <code>JSChannelsPane</code>.
         * @see #getChannelsPaneList
         */
        public abstract void insertChannelsPane(JSChannelsPane pane, int idx);
        
        /**
         * Gets the <code>JSChannelsPane</code> that is currently shown,
         * or has the focus if more than one channels' panes are shown.
         * If the GUI implementation has only one pane containing sampler channels,
         * than this method should always return that pane (the <code>JSChannelsPane</code>
         * with index 0).
         * @return The selected <code>JSChannelsPane</code>.
         */
        public abstract JSChannelsPane getSelectedChannelsPane();
        
        /**
         * Gets the server address to which to connect. If the server should be
         * manually selected, a dialog asking the user to choose a server is displayed.
         */
        public abstract Server getServer();
        
        /**
         * Gets the server address to which to connect. If the server should be
         * manually selected, a dialog asking the user to choose a server is displayed.
         * @param manualSelect Determines whether the server should be manually selected.
         */
        public abstract Server getServer(boolean manualSelect);
        
        /**
         * Sets the <code>JSChannelsPane</code> to be selected.
         * @param pane The <code>JSChannelsPane</code> to be shown.
         */
        public abstract void setSelectedChannelsPane(JSChannelsPane pane);
        
        private class EventHandler implements SamplerChannelListListener {
                /**
                 * Invoked when a new sampler channel is created.
                 * @param e A <code>SamplerChannelListEvent</code>
                 * instance providing the event information.
                 */
                public void
                channelAdded(SamplerChannelListEvent e) {
                        Integer id = e.getChannelModel().getChannelId();
                        if(findChannel(id) != null) {
                                CC.getLogger().log(Level.WARNING, "JSMainFrame.channelExist!", id);
                                return;
                        }
                        
                        getSelectedChannelsPane().addChannel(e.getChannelModel());
                }
        
                /**
                 * Invoked when a sampler channel is removed.
                 * @param e A <code>SamplerChannelListEvent</code>
                 * instance providing the event information.
                 */
                public void
                channelRemoved(SamplerChannelListEvent e) {
                        removeChannel(e.getChannelModel().getChannelId());
                }
        }
        
        /**
         * Searches for the first occurence of a channel with numerical ID <code>id</code>.
         * @return The first occurence of a channel with numerical ID <code>id</code> or
         * <code>null</code> if there is no channel with numerical ID <code>id</code>.
         */
        public JSChannel
        findChannel(int id) {
                if(id < 0) return null;
                
                for(JSChannelsPane cp : getChannelsPaneList()) {
                        for(JSChannel c : cp.getChannels()) if(c.getChannelId() == id) return c;
                }
                
                return null;
        }
        
        /**
         * Removes the first occurence of a channel with numerical ID <code>id</code>.
         * This method is invoked when a sampler channel is removed in the back-end.
         * @return The removed channel or <code>null</code>
         * if there is no channel with numerical ID <code>id</code>.
         */
        public JSChannel
        removeChannel(int id) {
                if(id < 0) return null;
                
                for(JSChannelsPane cp : getChannelsPaneList()) {
                        for(JSChannel c : cp.getChannels()) {
                                if(c.getChannelId() == id) {
                                        cp.removeChannel(c);
                                        return c;
                                }
                        }
                }
                
                return null;
        }
        
        /**
         * Determines whether the channel list UI should be automatically updated
         * when channel is added/removed. The default value is <code>true</code>.
         */
        public boolean
        getAutoUpdateChannelListUI() { return autoUpdateChannelListUI; }
        
        /**
         * Determines whether the channel list UI should be automatically updated
         * when channel is added/removed.
         */
        public void
        setAutoUpdateChannelListUI(boolean b) {
                if(b == autoUpdateChannelListUI) return;
                
                autoUpdateChannelListUI = b;
                for(JSChannelsPane cp : getChannelsPaneList()) {
                        cp.setAutoUpdate(b);
                }
        }
        
        /**
         * Updates the channel list UI.
         */
        public void
        updateChannelListUI() {
                for(JSChannelsPane cp : getChannelsPaneList()) {
                        cp.updateChannelListUI();
                }
        }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2007 Grigor Iliev <grigor@grigoriliev.com>
5	*
6	* This file is part of JSampler.
7	*
8	* JSampler is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License version 2
10	* as published by the Free Software Foundation.
11	*
12	* JSampler is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with JSampler; if not, write to the Free Software
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20	* MA 02111-1307 USA
21	*/
22
23	package org.jsampler.view;
24
25	import java.awt.Dialog;
26	import java.awt.Dimension;
27	import java.awt.Frame;
28
29	import java.awt.event.ActionEvent;
30	import java.awt.event.KeyEvent;
31	import java.awt.event.WindowAdapter;
32	import java.awt.event.WindowEvent;
33
34	import java.util.Vector;
35	import java.util.logging.Level;
36
37	import javax.swing.AbstractAction;
38	import javax.swing.JComponent;
39	import javax.swing.JFrame;
40	import javax.swing.KeyStroke;
41
42	import org.jsampler.CC;
43	import org.jsampler.JSampler;
44	import org.jsampler.Prefs;
45	import org.jsampler.Server;
46
47	import org.jsampler.event.SamplerChannelListEvent;
48	import org.jsampler.event.SamplerChannelListListener;
49
50
51	/**
52	* Defines the skeleton of a JSampler's main frame.
53	* @author Grigor Iliev
54	*/
55	public abstract class JSMainFrame extends JFrame {
56	private final Vector<JSChannelsPane> chnPaneList = new Vector<JSChannelsPane>();
57	private boolean autoUpdateChannelListUI = true;
58
59	/** Creates a new instance of <code>JSMainFrame</code>. */
60	public
61	JSMainFrame() {
62	super(JSampler.NAME + ' ' + JSampler.VERSION);
63
64	setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
65	addWindowListener(new WindowAdapter() {
66	public void
67	windowClosing(WindowEvent we) { onWindowClose(); }
68	});
69
70	CC.getSamplerModel().addSamplerChannelListListener(new EventHandler());
71
72	getRootPane().getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put (
73	KeyStroke.getKeyStroke(KeyEvent.VK_G, KeyEvent.CTRL_MASK \| KeyEvent.SHIFT_MASK),
74	"RunGarbageCollector"
75	);
76
77	getRootPane().getActionMap().put ("RunGarbageCollector", new AbstractAction() {
78	public void
79	actionPerformed(ActionEvent e) {
80	System.gc();
81	}
82	});
83	}
84
85	/**
86	* Invoked when this window is about to close.
87	* Don't forget to call <code>super.onWindowClose()</code> at the end,
88	* when override this method.
89	*/
90	protected void
91	onWindowClose() {
92	CC.cleanExit();
93	}
94
95	/**
96	* Invoked on startup when no JSampler home directory is specified
97	* or the specified JSampler home directory doesn't exist.
98	* This method should ask the user to specify a JSampler
99	* home directory and then set the specified JSampler home directory using
100	* {@link org.jsampler.CC#setJSamplerHome} method.
101	* @see org.jsampler.CC#getJSamplerHome
102	* @see org.jsampler.CC#setJSamplerHome
103	*/
104	public abstract void installJSamplerHome();
105
106	/**
107	* Shows a detailed error information about the specified exception.
108	*/
109	public abstract void showDetailedErrorMessage(Frame owner, String err, String details);
110
111	/**
112	* Shows a detailed error information about the specified exception.
113	*/
114	public abstract void showDetailedErrorMessage(Dialog owner, String err, String details);
115
116	/**
117	* Returns a list containing all <code>JSChannelsPane</code>s added to the view.
118	* @return A list containing all <code>JSChannelsPane</code>s added to the view.
119	* @see #addChannelsPane
120	* @see #removeChannelsPane
121	*/
122	public Vector<JSChannelsPane>
123	getChannelsPaneList() { return chnPaneList; }
124
125	/**
126	* Return the <code>JSChannelsPane</code> at the specified position.
127	* @param idx The position of the <code>JSChannelsPane</code> to be returned.
128	* @return The <code>JSChannelsPane</code> at the specified position.
129	*/
130	public JSChannelsPane
131	getChannelsPane(int idx) { return chnPaneList.get(idx); }
132
133	/**
134	* Adds the specified <code>JSChannelsPane</code> to the view.
135	* @param chnPane The <code>JSChannelsPane</code> to be added.
136	*/
137	public void
138	addChannelsPane(JSChannelsPane chnPane) { chnPaneList.add(chnPane); }
139
140	/**
141	* Removes the specified <code>JSChannelsPane</code> from the view.
142	* Override this method to remove <code>chnPane</code> from the view,
143	* and don't forget to call <code>super.removeChannelsPane(chnPane);</code>.
144	* @param chnPane The <code>JSChannelsPane</code> to be removed.
145	* @return <code>true</code> if the specified code>JSChannelsPane</code>
146	* is actually removed from the view, <code>false</code> otherwise.
147	*/
148	public boolean
149	removeChannelsPane(JSChannelsPane chnPane) { return chnPaneList.remove(chnPane); }
150
151	/**
152	* Gets the current number of <code>JSChannelsPane</code>s added to the view.
153	* @return The current number of <code>JSChannelsPane</code>s added to the view.
154	*/
155	public int
156	getChannelsPaneCount() { return chnPaneList.size(); }
157
158	/**
159	* Inserts the specified <code>JSChannelsPane</code> at the specified position
160	* in the view and in the code>JSChannelsPane</code> list.
161	* Where and how this pane will be shown depends on the view/GUI implementation.
162	* Note that some GUI implementation may have only one pane containing sampler channels.
163	* @param pane The <code>JSChannelsPane</code> to be inserted.
164	* @param idx Specifies the position of the <code>JSChannelsPane</code>.
165	* @see #getChannelsPaneList
166	*/
167	public abstract void insertChannelsPane(JSChannelsPane pane, int idx);
168
169	/**
170	* Gets the <code>JSChannelsPane</code> that is currently shown,
171	* or has the focus if more than one channels' panes are shown.
172	* If the GUI implementation has only one pane containing sampler channels,
173	* than this method should always return that pane (the <code>JSChannelsPane</code>
174	* with index 0).
175	* @return The selected <code>JSChannelsPane</code>.
176	*/
177	public abstract JSChannelsPane getSelectedChannelsPane();
178
179	/**
180	* Gets the server address to which to connect. If the server should be
181	* manually selected, a dialog asking the user to choose a server is displayed.
182	*/
183	public abstract Server getServer();
184
185	/**
186	* Gets the server address to which to connect. If the server should be
187	* manually selected, a dialog asking the user to choose a server is displayed.
188	* @param manualSelect Determines whether the server should be manually selected.
189	*/
190	public abstract Server getServer(boolean manualSelect);
191
192	/**
193	* Sets the <code>JSChannelsPane</code> to be selected.
194	* @param pane The <code>JSChannelsPane</code> to be shown.
195	*/
196	public abstract void setSelectedChannelsPane(JSChannelsPane pane);
197
198	private class EventHandler implements SamplerChannelListListener {
199	/**
200	* Invoked when a new sampler channel is created.
201	* @param e A <code>SamplerChannelListEvent</code>
202	* instance providing the event information.
203	*/
204	public void
205	channelAdded(SamplerChannelListEvent e) {
206	Integer id = e.getChannelModel().getChannelId();
207	if(findChannel(id) != null) {
208	CC.getLogger().log(Level.WARNING, "JSMainFrame.channelExist!", id);
209	return;
210	}
211
212	getSelectedChannelsPane().addChannel(e.getChannelModel());
213	}
214
215	/**
216	* Invoked when a sampler channel is removed.
217	* @param e A <code>SamplerChannelListEvent</code>
218	* instance providing the event information.
219	*/
220	public void
221	channelRemoved(SamplerChannelListEvent e) {
222	removeChannel(e.getChannelModel().getChannelId());
223	}
224	}
225
226	/**
227	* Searches for the first occurence of a channel with numerical ID <code>id</code>.
228	* @return The first occurence of a channel with numerical ID <code>id</code> or
229	* <code>null</code> if there is no channel with numerical ID <code>id</code>.
230	*/
231	public JSChannel
232	findChannel(int id) {
233	if(id < 0) return null;
234
235	for(JSChannelsPane cp : getChannelsPaneList()) {
236	for(JSChannel c : cp.getChannels()) if(c.getChannelId() == id) return c;
237	}
238
239	return null;
240	}
241
242	/**
243	* Removes the first occurence of a channel with numerical ID <code>id</code>.
244	* This method is invoked when a sampler channel is removed in the back-end.
245	* @return The removed channel or <code>null</code>
246	* if there is no channel with numerical ID <code>id</code>.
247	*/
248	public JSChannel
249	removeChannel(int id) {
250	if(id < 0) return null;
251
252	for(JSChannelsPane cp : getChannelsPaneList()) {
253	for(JSChannel c : cp.getChannels()) {
254	if(c.getChannelId() == id) {
255	cp.removeChannel(c);
256	return c;
257	}
258	}
259	}
260
261	return null;
262	}
263
264	/**
265	* Determines whether the channel list UI should be automatically updated
266	* when channel is added/removed. The default value is <code>true</code>.
267	*/
268	public boolean
269	getAutoUpdateChannelListUI() { return autoUpdateChannelListUI; }
270
271	/**
272	* Determines whether the channel list UI should be automatically updated
273	* when channel is added/removed.
274	*/
275	public void
276	setAutoUpdateChannelListUI(boolean b) {
277	if(b == autoUpdateChannelListUI) return;
278
279	autoUpdateChannelListUI = b;
280	for(JSChannelsPane cp : getChannelsPaneList()) {
281	cp.setAutoUpdate(b);
282	}
283	}
284
285	/**
286	* Updates the channel list UI.
287	*/
288	public void
289	updateChannelListUI() {
290	for(JSChannelsPane cp : getChannelsPaneList()) {
291	cp.updateChannelListUI();
292	}
293	}
294	}