// Fragment 6

    // User clicked on Close Window. stop timer and close MIDi devices.

    private void formWindowClosing(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_formWindowClosing
        masterTimer.cancel();                                       
        kProAllOff();
        if(kProDevice != null) {
           kProDevice.close();
        }
        synth.close();
    }//GEN-LAST:event_formWindowClosing


    // User clicked on Read Patch File

    private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem2ActionPerformed
      patch p;                                                                    // Read Patch file
      JFileChooser fileRead = new JFileChooser();
      FileFilter ft = new FileNameExtensionFilter("Patch Patterns", "ptc");
      fileRead.setFileFilter(ft);
      int userChoice = fileRead.showOpenDialog(this);

      if(userChoice == JFileChooser.APPROVE_OPTION) {
         try {
            BufferedReader reader = new BufferedReader(new FileReader(fileRead.getSelectedFile()));
            String line = "";
            while((line = reader.readLine()) != null) {
               if(! line.isEmpty()) {
                  p = new patch();
                  p.parseFromFile(line);
                  patchList.add(p);
               }
               lastSavedPatchFile = fileRead.getSelectedFile().getPath();
            }
         } catch (Exception ex) {
            jTextArea1.append("\nCouldn't open |" + fileRead.getSelectedFile() + "|.\n");
            jTextArea1.append(ex.toString());
         }
      
         File f = new File(patchList.get(0).arpPatternFile);   // Read the arp patterns and pre-load the combo box.
         readArpPatFile(f);
        
         String s = "";                                        // Add patches to combo box
         for(patch patch1 : patchList) {
            s = patch1.name;
            jComboBox4.addItem(s);
         }
         jComboBox4.setSelectedIndex(0);                       // Pre-select patch 0 just to be on the safe side.
      }
    }//GEN-LAST:event_jMenuItem2ActionPerformed


    // User selected Save Patch objects to a file.

    private void jMenuItem3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem3ActionPerformed
        savePatchFile(lastSavedPatchFile);                                         // Menu -> File -> Save Patch File
    }//GEN-LAST:event_jMenuItem3ActionPerformed


    // User selected SaveAs Patch file from the menu bar.

    private void jMenuItem4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem4ActionPerformed
        savePatchFile("");                                                         // File -> Menu -> SaveAs Patch File
    }//GEN-LAST:event_jMenuItem4ActionPerformed


    // User clicked on Read Arp Patterns.

    private void jMenuItem8ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem8ActionPerformed
      JFileChooser fileRead = new JFileChooser();                                       // File Menu Item ->Read Arp Patterns File
      FileFilter ft = new FileNameExtensionFilter("Arp Patterns", "arp");
      fileRead.setFileFilter(ft);
      int userChoice = fileRead.showOpenDialog(this);

      if(userChoice == JFileChooser.APPROVE_OPTION) {
         readArpPatFile(fileRead.getSelectedFile());
      }
    }//GEN-LAST:event_jMenuItem8ActionPerformed


    // User clicked on Save Arp File.

    private void jMenuItem9ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem9ActionPerformed
       String s          = "";
       boolean done      = false;
       JFileChooser fileSaveChoice = new JFileChooser();                                // Save arp file
       FileFilter ft = new FileNameExtensionFilter("Arp Patterns", "arp");
       fileSaveChoice.setFileFilter(ft);
       int userChoice = JFileChooser.CANCEL_OPTION;
        
       while (! done) {
          userChoice = fileSaveChoice.showSaveDialog(this);
          if(fileSaveChoice.getSelectedFile().exists()) {
             userChoice = JOptionPane.showConfirmDialog(this, "File already exists.\nOverwrite it?", "Patch File Save", JOptionPane.YES_NO_OPTION);
             if(userChoice == JFileChooser.APPROVE_OPTION) {
                done       = true;
             }
          } else {
              done = true;
          }
       }
       
       if(userChoice == JFileChooser.APPROVE_OPTION) {
          try {
             BufferedWriter writer = new BufferedWriter(new FileWriter(fileSaveChoice.getSelectedFile()));
             for(ArrayList a : arpPatternsList) {
                s = "";
                for(int i=0; i < a.size(); i++) {
                   s += " " + a.get(i);
                }
                writer.write(s.trim() + "\n");
             }
             writer.flush();
             writer.close();
             JOptionPane.showMessageDialog(this, "File Saved.");
             selectedArpFile = fileSaveChoice.getSelectedFile().getPath();
          } catch(IOException ex) {
             System.err.println("Couldn't save file");
             JOptionPane.showMessageDialog(this, "Couldn't Save File.\n" + ex);
          }
       }
    }//GEN-LAST:event_jMenuItem9ActionPerformed


     // User Clicked on K-Pro Channel

    private void jMenuItem6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem6ActionPerformed
       String s = (String)JOptionPane.showInputDialog(this, "K-Pro MIDI Channel:", "Channel", JOptionPane.PLAIN_MESSAGE, null, null, midiPorts.kProChannelNo);
       midiPorts.setKProChannel(Integer.parseInt(s));
    }//GEN-LAST:event_jMenuItem6ActionPerformed


    // User Clicked on Keyboard Channel.

    private void jMenuItem10ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem10ActionPerformed
       String s = (String)JOptionPane.showInputDialog(this, "Keyboard MIDI Channel:", "Channel", JOptionPane.PLAIN_MESSAGE, null, null, midiPorts.keyboardChannelNo);
       midiPorts.setKeyboardChannel(Integer.parseInt(s));
    }//GEN-LAST:event_jMenuItem10ActionPerformed


    // User clicked on Default Synth Channel.

    private void jMenuItem11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem11ActionPerformed
       String s = (String)JOptionPane.showInputDialog(this, "Default Synth Starting MIDI Channel:", "Channel", JOptionPane.PLAIN_MESSAGE, null, null, midiPorts.defaultChannelNo);
       midiPorts.setDefaultSynthChannel(Integer.parseInt(s));
    }//GEN-LAST:event_jMenuItem11ActionPerformed


     // My original plan was to allow the user to turn on the K-Pro after starting the app, and then using the Find K-Pro option
    // from the menu to see if the K-Pro driver was running yet.  However, the System object doesn't seem to be refreshing
    // properly.  According to the Java forums, refresh defaults to every 60 seconds, although it's possible to set it shorter.
    // But,after 5 minutes, System still hadn't refreshed and the K-Pro driver wasn't in the MIDI information list.  So I deactivated
    // this option.

    private void jMenuItem12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem12ActionPerformed
       boolean quit = false;                                                          // Menu -> Edit -> Retry K-Pro Read
       int cntr = 1;
       jTextArea1.append("-------------------\n");
       while(! quit) {
          initMidiDevices();
          jTextArea1.append("------------------- Attempt No.: " + cntr + "\n");
          cntr++;
          if(kProDevice != null) {
              quit = true;
          } else {
             int n = JOptionPane.showConfirmDialog(this, "K-Pro still not found.\nTry again?", "Find K-Pro", JOptionPane.YES_NO_OPTION);
             if(n == JFileChooser.CANCEL_OPTION) {
                 quit = true;
             }
          }
       }
    }//GEN-LAST:event_jMenuItem12ActionPerformed


    // Display the About box.

    private void jMenuItem7ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem7ActionPerformed
       JOptionPane.showMessageDialog(this, "Kaossilator MIDI Driver and Arpeggiator\nCopyright Curtis H. Hoffmann\n(c)2012", "About K-Gator", JOptionPane.PLAIN_MESSAGE);
    }//GEN-LAST:event_jMenuItem7ActionPerformed