view/std/StdUtils.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2010 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.std;

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Color;
import java.awt.Desktop;
import java.awt.Dialog;
import java.awt.FileDialog;
import java.awt.Frame;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Window;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import java.awt.image.BufferedImage;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import java.io.File;
import java.net.URI;

import java.text.NumberFormat;

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

import javax.swing.ImageIcon;
import javax.swing.JComboBox;
import javax.swing.JFileChooser;
import javax.swing.JSlider;
import javax.swing.JToolTip;
import javax.swing.Popup;
import javax.swing.PopupFactory;

import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.jsampler.CC;
import org.jsampler.HF;
import org.jsampler.JSPrefs;

import org.jsampler.view.JSFileFilter;
import static org.jsampler.view.std.StdI18n.i18n;
import static org.jsampler.view.std.StdPrefs.*;


/**
 *
 * @author Grigor Iliev
 */
public class StdUtils {
        
        /** Forbids the instantiation of this class */
        private
        StdUtils() { }
        
        private static JSPrefs
        preferences() { return CC.getViewConfig().preferences(); }

        public static JComboBox
        createEnhancedComboBox() {
                final JComboBox cb = new JComboBox();
                cb.addActionListener(new ActionListener() {
                        public void
                        actionPerformed(ActionEvent e) {
                                if(cb.getSelectedItem() == null) {
                                        cb.setToolTipText(null);
                                        return;
                                }
                                String s = cb.getSelectedItem().toString();
                                if(s.length() < 15) cb.setToolTipText(null);
                                else cb.setToolTipText(s);
                        }
                });

                return cb;
        }
        
        public static JComboBox
        createPathComboBox() {
                JComboBox cb = createEnhancedComboBox();
                cb.setEditable(true);
                return cb;
        }
        
        /**
         * Updates the specified string list property by adding the specified
         * element on the top. Also restricts the maximum number of elements to 12.
         */
        public static void
        updateRecentElements(String property, String newElement) {
                String[] elements = preferences().getStringListProperty(property);
                Vector<String> v = new Vector<String>();
                v.add(newElement);
                for(String s : elements) {
                        if(!newElement.equals(s)) v.add(s);
                }
                if(v.size() > 12) v.setSize(12);
                
                elements = v.toArray(new String[v.size()]);
                preferences().setStringListProperty(property, elements);
        }
        
        public static boolean
        checkDesktopSupported() {
                if(Desktop.isDesktopSupported()) return true;
                
                String s = i18n.getError("StdUtils.DesktopApiNotSupported");
                HF.showErrorMessage(s, CC.getMainFrame());
                
                return false;
        }
        
        public static void
        browse(String uri) {
                if(!checkDesktopSupported()) return;
                
                try { Desktop.getDesktop().browse(new URI(uri)); }
                catch(Exception x) { x.printStackTrace(); }
        }
        
        public static void
        mail(String uri) {
                if(!StdUtils.checkDesktopSupported()) return;
                
                Desktop desktop = Desktop.getDesktop();
                
                try { Desktop.getDesktop().mail(new URI(uri)); }
                catch(Exception x) { x.printStackTrace(); }
        }
        
        /**
         * Gets the windows bounds from the preferences for the specified window.
         * @return The windows bounds saved in the preferences for the specified window
         * or <code>null</code>.
         */
        public static Rectangle
        getWindowBounds(String windowName) {
                String s = windowName + ".windowSizeAndLocation";
                s = CC.preferences().getStringProperty(s, null);
                if(s == null) return null;
                
                try {
                        int i = s.indexOf(',');
                        int x = Integer.parseInt(s.substring(0, i));
                        
                        s = s.substring(i + 1);
                        i = s.indexOf(',');
                        int y = Integer.parseInt(s.substring(0, i));
                        
                        s = s.substring(i + 1);
                        i = s.indexOf(',');
                        int width = Integer.parseInt(s.substring(0, i));
                        
                        s = s.substring(i + 1);
                        int height = Integer.parseInt(s);
                        
                        return new Rectangle(x, y, width, height);
                } catch(Exception x) {
                        String msg = windowName;
                        msg += ": Parsing of window size and location string failed";
                        CC.getLogger().log(Level.INFO, msg, x);
                        return null;
                }
        }
        
        /**
         * Saves the windows bounds in the preferences for the specified window.
         */
        public static void
        saveWindowBounds(String windowName, Rectangle r) {
                if(r.width < 50 || r.height < 50 || r.x < r.width * -1 || r.y < 0) {
                        CC.getLogger().warning("Invalid window size or location");
                        return;
                }

                StringBuffer sb = new StringBuffer();
                sb.append(r.x).append(',').append(r.y).append(',');
                sb.append(r.width).append(',').append(r.height);
                String s = windowName + ".windowSizeAndLocation";
                CC.preferences().setStringProperty(s, sb.toString());
        }

        public static File
        showOpenLscpFileChooser() {
                return showLscpFileChooser(true);
        }

        public static File
        showOpenLscpFileChooser(Window owner) {
                return showLscpFileChooser(true, owner);
        }

        public static File
        showSaveLscpFileChooser() {
                return showLscpFileChooser(false);
        }

        public static File
        showSaveLscpFileChooser(Window owner) {
                return showLscpFileChooser(false, owner);
        }

        private static File
        showLscpFileChooser(boolean openDialog) {
                return showLscpFileChooser(openDialog, CC.getMainFrame());
        }

        private static File
        showLscpFileChooser(boolean openDialog, Window owner) {
                return showFileChooser (
                        openDialog, owner, false, new JSFileFilter.Lscp(), "lastScriptLocation"
                );
        }

        public static File
        showSaveMidiMapsChooser() {
                JSFileFilter filter = new JSFileFilter.MidiMaps();

                JSFileFilter[] filters = {
                        new JSFileFilter.Lscp(), new JSFileFilter.Text(), new JSFileFilter.Html(),
                        new JSFileFilter.Rgd()
                };

                return showFileChooser (
                        false, CC.getMainFrame(), false, filter, filters, "lastScriptLocation"
                );
        }

        public static File
        showOpenInstrumentFileChooser(Window owner) {
                return showFileChooser(true, owner, false, null, "lastInstrumentLocation");
        }

        public static File
        showOpenDirectoryChooser(Window owner, String locationProperty) {
                return showFileChooser(true, owner, true, null, locationProperty);
        }

        private static File
        showFileChooser (
                boolean       openDialog,
                Window        owner,
                boolean       dirChooser,
                JSFileFilter  filter,
                String        locationProperty
        ) {
                JSFileFilter[] filters = (filter == null) ? new JSFileFilter[0] : new JSFileFilter[1];
                if(filter != null) filters[0] = filter;
                
                return showFileChooser(openDialog, owner, dirChooser, filter, filters, locationProperty);
        }

        private static File
        showFileChooser (
                boolean         openDialog,
                Window          owner,
                boolean         dirChooser,
                JSFileFilter    filter,
                JSFileFilter[]  choosableFilters,
                String          locationProperty
        ) {
                boolean nativeFileChooser = preferences().getBoolProperty("nativeFileChoosers");
                String oldPath = null;
                if(locationProperty != null) {
                        oldPath = preferences().getStringProperty(locationProperty);
                }
                File f = null;
                if(nativeFileChooser && CC.isMacOS()) {
                        if(dirChooser) {
                                System.setProperty("apple.awt.fileDialogForDirectories", "true");
                        }
                        FileDialog dlg;
                        if(owner instanceof Frame) dlg = new FileDialog((Frame)owner);
                        else if(owner instanceof Dialog) dlg = new FileDialog((Dialog)owner);
                        else dlg = new FileDialog(CC.getMainFrame());
                        dlg.setDirectory(oldPath);
                        dlg.setMode(openDialog ? FileDialog.LOAD : FileDialog.SAVE);
                        if(filter != null) dlg.setFilenameFilter(filter);
                        dlg.setVisible(true);
                        if(dirChooser) {
                                System.setProperty("apple.awt.fileDialogForDirectories", "false");
                        }
                        if(dlg.getFile() != null) {
                                f = new File(new File(dlg.getDirectory()), dlg.getFile());
                        }
                } else {
                        JFileChooser fc = new JFileChooser(oldPath);
                        for(JSFileFilter ff : choosableFilters) {
                                fc.addChoosableFileFilter(ff);
                        }
                        if(choosableFilters.length > 0) fc.setFileFilter(choosableFilters[0]);
                        
                        if(dirChooser) fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
                        int result;
                        if(openDialog) result = fc.showOpenDialog(owner);
                        else result = fc.showSaveDialog(owner);
                        if(result == JFileChooser.APPROVE_OPTION) {
                                f = fc.getSelectedFile();
                        }

                        if(result == JFileChooser.APPROVE_OPTION && !openDialog) {
                                Object o = fc.getFileFilter();
                                for(JSFileFilter ff : choosableFilters) {
                                        if(ff == o) {
                                                String fn = f.getName().toLowerCase();
                                                String ext = ff.getExtension().toLowerCase();
                                                if(fn.endsWith(ext)) break;

                                                fn = f.getAbsolutePath() + ff.getExtension();
                                                f = new File(fn);
                                                break;
                                        }
                                }
                        }
                }

                if(f == null) return null;
                String path = f.getParent();
                if(path != null && locationProperty != null) {
                        preferences().setStringProperty(locationProperty, path);
                }
                return f;
        }
        
        public static JSlider
        createVolumeSlider() {
                return new VolumeSlider();
        }
        
        private static class VolumeSlider extends JSlider {
                private Popup popup = null;
                private final JToolTip tip = new JToolTip();
                private static NumberFormat numberFormat = NumberFormat.getInstance();
                
                VolumeSlider() {
                        super(0, 100, 100);
                        numberFormat.setMaximumFractionDigits(1);
                        // Setting the tooltip size (workaround for preserving that size)
                        boolean b = CC.getViewConfig().isMeasurementUnitDecibel();
                        if(b) tip.setTipText(i18n.getLabel("StdUtils.volumeDecibels", "-30.0"));
                        else tip.setTipText(i18n.getLabel("StdUtils.volume", "100"));
                        tip.setPreferredSize(tip.getPreferredSize());
                        tip.setMinimumSize(tip.getPreferredSize());
                        ///////
                        tip.setComponent(this);
                        tip.setTipText(i18n.getLabel("StdUtils.volume", 0));
                        
                        updateVolumeInfo();
                        
                        addMouseListener(new MouseAdapter() {
                                public void
                                mousePressed(MouseEvent e) {
                                        if(popup != null) {
                                                popup.hide();
                                                popup = null;
                                        }
                                        
                                        if(!VolumeSlider.this.isEnabled()) return;
                                        
                                        java.awt.Point p = VolumeSlider.this.getLocationOnScreen();
                                        PopupFactory pf = PopupFactory.getSharedInstance();
                                        popup = pf.getPopup(VolumeSlider.this, tip, p.x, p.y - 22);
                                        popup.show();
                                }
                                
                                public void
                                mouseReleased(MouseEvent e) {
                                        if(popup != null) {
                                                popup.hide();
                                                popup = null;
                                        }
                                }
                        });
                        
                        addChangeListener(new ChangeListener() {
                                public void
                                stateChanged(ChangeEvent e) { updateVolumeInfo(); }
                        });
                        
                        String s = VOL_MEASUREMENT_UNIT_DECIBEL;
                        preferences().addPropertyChangeListener(s, new PropertyChangeListener() {
                                public void
                                propertyChange(PropertyChangeEvent e) {
                                        // We use this to set the size of the lVolume
                                        // to prevent the frequent resizing of lVolume component
                                        boolean b = CC.getViewConfig().isMeasurementUnitDecibel();
                                        tip.setPreferredSize(null);
                                        String s;
                                        if(b) s = i18n.getLabel("StdUtils.volumeDecibels", "-30.0");
                                        else s = i18n.getLabel("StdUtils.volume", "100");
                                        tip.setTipText(s);
                                        tip.setPreferredSize(tip.getPreferredSize());
                                        tip.setMinimumSize(tip.getPreferredSize());
                                        ///////
                                        updateVolumeInfo();
                                }
                        });
                }
                
                private void
                updateVolumeInfo() {
                        String s;
                        if(CC.getViewConfig().isMeasurementUnitDecibel()) {
                                double d = HF.percentsToDecibels(getValue());
                                s = i18n.getLabel("StdUtils.volumeDecibels", numberFormat.format(d));
                        } else {
                                s = i18n.getLabel("StdUtils.volume", getValue());
                        }
                        
                        setToolTipText(s);
                        tip.setTipText(s);
                        tip.repaint();
                }
        }

        /**
         * Applies the specified color as background to
         * the specified image and returns the newly created image.
         */
        public static ImageIcon
        createImageIcon(Image img, Color bgColor) {
                BufferedImage img2 = new BufferedImage (
                        img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB
                );

                Graphics2D g = img2.createGraphics();
                g.drawImage(img, 0, 0, bgColor, null);
                g.dispose();

                return new ImageIcon(Toolkit.getDefaultToolkit().createImage(img2.getSource()));
        }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2010 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	package org.jsampler.view.std;
23
24	import java.awt.Graphics2D;
25	import java.awt.Image;
26	import java.awt.Color;
27	import java.awt.Desktop;
28	import java.awt.Dialog;
29	import java.awt.FileDialog;
30	import java.awt.Frame;
31	import java.awt.Rectangle;
32	import java.awt.Toolkit;
33	import java.awt.Window;
34
35	import java.awt.event.ActionEvent;
36	import java.awt.event.ActionListener;
37	import java.awt.event.MouseAdapter;
38	import java.awt.event.MouseEvent;
39
40	import java.awt.image.BufferedImage;
41
42	import java.beans.PropertyChangeEvent;
43	import java.beans.PropertyChangeListener;
44
45	import java.io.File;
46	import java.net.URI;
47
48	import java.text.NumberFormat;
49
50	import java.util.Vector;
51	import java.util.logging.Level;
52
53	import javax.swing.ImageIcon;
54	import javax.swing.JComboBox;
55	import javax.swing.JFileChooser;
56	import javax.swing.JSlider;
57	import javax.swing.JToolTip;
58	import javax.swing.Popup;
59	import javax.swing.PopupFactory;
60
61	import javax.swing.event.ChangeEvent;
62	import javax.swing.event.ChangeListener;
63	import org.jsampler.CC;
64	import org.jsampler.HF;
65	import org.jsampler.JSPrefs;
66
67	import org.jsampler.view.JSFileFilter;
68	import static org.jsampler.view.std.StdI18n.i18n;
69	import static org.jsampler.view.std.StdPrefs.*;
70
71
72	/**
73	*
74	* @author Grigor Iliev
75	*/
76	public class StdUtils {
77
78	/** Forbids the instantiation of this class */
79	private
80	StdUtils() { }
81
82	private static JSPrefs
83	preferences() { return CC.getViewConfig().preferences(); }
84
85	public static JComboBox
86	createEnhancedComboBox() {
87	final JComboBox cb = new JComboBox();
88	cb.addActionListener(new ActionListener() {
89	public void
90	actionPerformed(ActionEvent e) {
91	if(cb.getSelectedItem() == null) {
92	cb.setToolTipText(null);
93	return;
94	}
95	String s = cb.getSelectedItem().toString();
96	if(s.length() < 15) cb.setToolTipText(null);
97	else cb.setToolTipText(s);
98	}
99	});
100
101	return cb;
102	}
103
104	public static JComboBox
105	createPathComboBox() {
106	JComboBox cb = createEnhancedComboBox();
107	cb.setEditable(true);
108	return cb;
109	}
110
111	/**
112	* Updates the specified string list property by adding the specified
113	* element on the top. Also restricts the maximum number of elements to 12.
114	*/
115	public static void
116	updateRecentElements(String property, String newElement) {
117	String[] elements = preferences().getStringListProperty(property);
118	Vector<String> v = new Vector<String>();
119	v.add(newElement);
120	for(String s : elements) {
121	if(!newElement.equals(s)) v.add(s);
122	}
123	if(v.size() > 12) v.setSize(12);
124
125	elements = v.toArray(new String[v.size()]);
126	preferences().setStringListProperty(property, elements);
127	}
128
129	public static boolean
130	checkDesktopSupported() {
131	if(Desktop.isDesktopSupported()) return true;
132
133	String s = i18n.getError("StdUtils.DesktopApiNotSupported");
134	HF.showErrorMessage(s, CC.getMainFrame());
135
136	return false;
137	}
138
139	public static void
140	browse(String uri) {
141	if(!checkDesktopSupported()) return;
142
143	try { Desktop.getDesktop().browse(new URI(uri)); }
144	catch(Exception x) { x.printStackTrace(); }
145	}
146
147	public static void
148	mail(String uri) {
149	if(!StdUtils.checkDesktopSupported()) return;
150
151	Desktop desktop = Desktop.getDesktop();
152
153	try { Desktop.getDesktop().mail(new URI(uri)); }
154	catch(Exception x) { x.printStackTrace(); }
155	}
156
157	/**
158	* Gets the windows bounds from the preferences for the specified window.
159	* @return The windows bounds saved in the preferences for the specified window
160	* or <code>null</code>.
161	*/
162	public static Rectangle
163	getWindowBounds(String windowName) {
164	String s = windowName + ".windowSizeAndLocation";
165	s = CC.preferences().getStringProperty(s, null);
166	if(s == null) return null;
167
168	try {
169	int i = s.indexOf(',');
170	int x = Integer.parseInt(s.substring(0, i));
171
172	s = s.substring(i + 1);
173	i = s.indexOf(',');
174	int y = Integer.parseInt(s.substring(0, i));
175
176	s = s.substring(i + 1);
177	i = s.indexOf(',');
178	int width = Integer.parseInt(s.substring(0, i));
179
180	s = s.substring(i + 1);
181	int height = Integer.parseInt(s);
182
183	return new Rectangle(x, y, width, height);
184	} catch(Exception x) {
185	String msg = windowName;
186	msg += ": Parsing of window size and location string failed";
187	CC.getLogger().log(Level.INFO, msg, x);
188	return null;
189	}
190	}
191
192	/**
193	* Saves the windows bounds in the preferences for the specified window.
194	*/
195	public static void
196	saveWindowBounds(String windowName, Rectangle r) {
197	if(r.width < 50 \|\| r.height < 50 \|\| r.x < r.width * -1 \|\| r.y < 0) {
198	CC.getLogger().warning("Invalid window size or location");
199	return;
200	}
201
202	StringBuffer sb = new StringBuffer();
203	sb.append(r.x).append(',').append(r.y).append(',');
204	sb.append(r.width).append(',').append(r.height);
205	String s = windowName + ".windowSizeAndLocation";
206	CC.preferences().setStringProperty(s, sb.toString());
207	}
208
209	public static File
210	showOpenLscpFileChooser() {
211	return showLscpFileChooser(true);
212	}
213
214	public static File
215	showOpenLscpFileChooser(Window owner) {
216	return showLscpFileChooser(true, owner);
217	}
218
219	public static File
220	showSaveLscpFileChooser() {
221	return showLscpFileChooser(false);
222	}
223
224	public static File
225	showSaveLscpFileChooser(Window owner) {
226	return showLscpFileChooser(false, owner);
227	}
228
229	private static File
230	showLscpFileChooser(boolean openDialog) {
231	return showLscpFileChooser(openDialog, CC.getMainFrame());
232	}
233
234	private static File
235	showLscpFileChooser(boolean openDialog, Window owner) {
236	return showFileChooser (
237	openDialog, owner, false, new JSFileFilter.Lscp(), "lastScriptLocation"
238	);
239	}
240
241	public static File
242	showSaveMidiMapsChooser() {
243	JSFileFilter filter = new JSFileFilter.MidiMaps();
244
245	JSFileFilter[] filters = {
246	new JSFileFilter.Lscp(), new JSFileFilter.Text(), new JSFileFilter.Html(),
247	new JSFileFilter.Rgd()
248	};
249
250	return showFileChooser (
251	false, CC.getMainFrame(), false, filter, filters, "lastScriptLocation"
252	);
253	}
254
255	public static File
256	showOpenInstrumentFileChooser(Window owner) {
257	return showFileChooser(true, owner, false, null, "lastInstrumentLocation");
258	}
259
260	public static File
261	showOpenDirectoryChooser(Window owner, String locationProperty) {
262	return showFileChooser(true, owner, true, null, locationProperty);
263	}
264
265	private static File
266	showFileChooser (
267	boolean openDialog,
268	Window owner,
269	boolean dirChooser,
270	JSFileFilter filter,
271	String locationProperty
272	) {
273	JSFileFilter[] filters = (filter == null) ? new JSFileFilter[0] : new JSFileFilter[1];
274	if(filter != null) filters[0] = filter;
275
276	return showFileChooser(openDialog, owner, dirChooser, filter, filters, locationProperty);
277	}
278
279	private static File
280	showFileChooser (
281	boolean openDialog,
282	Window owner,
283	boolean dirChooser,
284	JSFileFilter filter,
285	JSFileFilter[] choosableFilters,
286	String locationProperty
287	) {
288	boolean nativeFileChooser = preferences().getBoolProperty("nativeFileChoosers");
289	String oldPath = null;
290	if(locationProperty != null) {
291	oldPath = preferences().getStringProperty(locationProperty);
292	}
293	File f = null;
294	if(nativeFileChooser && CC.isMacOS()) {
295	if(dirChooser) {
296	System.setProperty("apple.awt.fileDialogForDirectories", "true");
297	}
298	FileDialog dlg;
299	if(owner instanceof Frame) dlg = new FileDialog((Frame)owner);
300	else if(owner instanceof Dialog) dlg = new FileDialog((Dialog)owner);
301	else dlg = new FileDialog(CC.getMainFrame());
302	dlg.setDirectory(oldPath);
303	dlg.setMode(openDialog ? FileDialog.LOAD : FileDialog.SAVE);
304	if(filter != null) dlg.setFilenameFilter(filter);
305	dlg.setVisible(true);
306	if(dirChooser) {
307	System.setProperty("apple.awt.fileDialogForDirectories", "false");
308	}
309	if(dlg.getFile() != null) {
310	f = new File(new File(dlg.getDirectory()), dlg.getFile());
311	}
312	} else {
313	JFileChooser fc = new JFileChooser(oldPath);
314	for(JSFileFilter ff : choosableFilters) {
315	fc.addChoosableFileFilter(ff);
316	}
317	if(choosableFilters.length > 0) fc.setFileFilter(choosableFilters[0]);
318
319	if(dirChooser) fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
320	int result;
321	if(openDialog) result = fc.showOpenDialog(owner);
322	else result = fc.showSaveDialog(owner);
323	if(result == JFileChooser.APPROVE_OPTION) {
324	f = fc.getSelectedFile();
325	}
326
327	if(result == JFileChooser.APPROVE_OPTION && !openDialog) {
328	Object o = fc.getFileFilter();
329	for(JSFileFilter ff : choosableFilters) {
330	if(ff == o) {
331	String fn = f.getName().toLowerCase();
332	String ext = ff.getExtension().toLowerCase();
333	if(fn.endsWith(ext)) break;
334
335	fn = f.getAbsolutePath() + ff.getExtension();
336	f = new File(fn);
337	break;
338	}
339	}
340	}
341	}
342
343	if(f == null) return null;
344	String path = f.getParent();
345	if(path != null && locationProperty != null) {
346	preferences().setStringProperty(locationProperty, path);
347	}
348	return f;
349	}
350
351	public static JSlider
352	createVolumeSlider() {
353	return new VolumeSlider();
354	}
355
356	private static class VolumeSlider extends JSlider {
357	private Popup popup = null;
358	private final JToolTip tip = new JToolTip();
359	private static NumberFormat numberFormat = NumberFormat.getInstance();
360
361	VolumeSlider() {
362	super(0, 100, 100);
363	numberFormat.setMaximumFractionDigits(1);
364	// Setting the tooltip size (workaround for preserving that size)
365	boolean b = CC.getViewConfig().isMeasurementUnitDecibel();
366	if(b) tip.setTipText(i18n.getLabel("StdUtils.volumeDecibels", "-30.0"));
367	else tip.setTipText(i18n.getLabel("StdUtils.volume", "100"));
368	tip.setPreferredSize(tip.getPreferredSize());
369	tip.setMinimumSize(tip.getPreferredSize());
370	///////
371	tip.setComponent(this);
372	tip.setTipText(i18n.getLabel("StdUtils.volume", 0));
373
374	updateVolumeInfo();
375
376	addMouseListener(new MouseAdapter() {
377	public void
378	mousePressed(MouseEvent e) {
379	if(popup != null) {
380	popup.hide();
381	popup = null;
382	}
383
384	if(!VolumeSlider.this.isEnabled()) return;
385
386	java.awt.Point p = VolumeSlider.this.getLocationOnScreen();
387	PopupFactory pf = PopupFactory.getSharedInstance();
388	popup = pf.getPopup(VolumeSlider.this, tip, p.x, p.y - 22);
389	popup.show();
390	}
391
392	public void
393	mouseReleased(MouseEvent e) {
394	if(popup != null) {
395	popup.hide();
396	popup = null;
397	}
398	}
399	});
400
401	addChangeListener(new ChangeListener() {
402	public void
403	stateChanged(ChangeEvent e) { updateVolumeInfo(); }
404	});
405
406	String s = VOL_MEASUREMENT_UNIT_DECIBEL;
407	preferences().addPropertyChangeListener(s, new PropertyChangeListener() {
408	public void
409	propertyChange(PropertyChangeEvent e) {
410	// We use this to set the size of the lVolume
411	// to prevent the frequent resizing of lVolume component
412	boolean b = CC.getViewConfig().isMeasurementUnitDecibel();
413	tip.setPreferredSize(null);
414	String s;
415	if(b) s = i18n.getLabel("StdUtils.volumeDecibels", "-30.0");
416	else s = i18n.getLabel("StdUtils.volume", "100");
417	tip.setTipText(s);
418	tip.setPreferredSize(tip.getPreferredSize());
419	tip.setMinimumSize(tip.getPreferredSize());
420	///////
421	updateVolumeInfo();
422	}
423	});
424	}
425
426	private void
427	updateVolumeInfo() {
428	String s;
429	if(CC.getViewConfig().isMeasurementUnitDecibel()) {
430	double d = HF.percentsToDecibels(getValue());
431	s = i18n.getLabel("StdUtils.volumeDecibels", numberFormat.format(d));
432	} else {
433	s = i18n.getLabel("StdUtils.volume", getValue());
434	}
435
436	setToolTipText(s);
437	tip.setTipText(s);
438	tip.repaint();
439	}
440	}
441
442	/**
443	* Applies the specified color as background to
444	* the specified image and returns the newly created image.
445	*/
446	public static ImageIcon
447	createImageIcon(Image img, Color bgColor) {
448	BufferedImage img2 = new BufferedImage (
449	img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB
450	);
451
452	Graphics2D g = img2.createGraphics();
453	g.drawImage(img, 0, 0, bgColor, null);
454	g.dispose();
455
456	return new ImageIcon(Toolkit.getDefaultToolkit().createImage(img2.getSource()));
457	}
458	}