Source for gnu.java.awt.peer.qt.QtAudioClip

   1: /* QtAudioClip.java -- Qt implementation of the applet AudioClip interface
   2:    Copyright (C)  2005  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package gnu.java.awt.peer.qt;
  39: 
  40: import java.applet.AudioClip;
  41: import java.awt.Toolkit;
  42: import java.io.File;
  43: import java.io.IOException;
  44: import java.net.URL;
  45: 
  46: /**
  47:  * Implementation of the applet AudioClip interface on a Qt
  48:  * QSound object.
  49:  */
  50: public class QtAudioClip extends NativeWrapper implements AudioClip
  51: {
  52:   private static Toolkit t = null;
  53: 
  54:   public QtAudioClip(String filename)
  55:   {
  56:     checkForQt();
  57:     File f = new File(filename);
  58:     try
  59:       {
  60:         String fn = f.getCanonicalPath();
  61:         loadClip( fn );
  62:       }
  63:     catch(IOException e)
  64:       {
  65:       }
  66:   }
  67: 
  68:   public QtAudioClip(URL url)
  69:   {
  70: 
  71:   }
  72: 
  73:   private native void loadClip(String filename);
  74: 
  75:   private native void play(boolean looped);
  76: 
  77:   private native boolean isAvailable();
  78: 
  79:   /**
  80:    * Checks that Qt and sound is available.
  81:    */
  82:   private void checkForQt()
  83:   {
  84:     if( t == null )
  85:       t = Toolkit.getDefaultToolkit();
  86:     if( !( t instanceof QtToolkit) )
  87:       throw new IllegalStateException("This requires Qt peers.");
  88:   }
  89: 
  90:   // *************** Public methods *******************
  91: 
  92:   public void loop()
  93:   {
  94:     play( true );
  95:   }
  96: 
  97:   public void play()
  98:   {
  99:     play( false );
 100:   }
 101: 
 102:   public native void stop();
 103: 
 104:   public native void dispose();
 105: 
 106:   public void finalize()
 107:   {
 108:     dispose();
 109:   }
 110: }