src/camidion/chordhelper/ChordDisplayLabel.java

   1 package camidion.chordhelper;
   2
   3 import java.awt.Color;
   4 import java.awt.Dimension;
   5 import java.awt.Graphics;
   6 import java.awt.event.InputEvent;
   7 import java.awt.event.MouseAdapter;
   8 import java.awt.event.MouseEvent;
   9
  10 import javax.swing.JLabel;
  11
  12 import camidion.chordhelper.chordmatrix.ChordMatrix;
  13 import camidion.chordhelper.music.Chord;
  14 import camidion.chordhelper.music.MIDISpec;
  15 import camidion.chordhelper.music.Note;
  16 import camidion.chordhelper.pianokeyboard.PianoKeyboard;
  17
  18 /**
  19  * 和音表示ラベル
  20  */
  21 public class ChordDisplayLabel extends JLabel {
  22         private String defaultString = null;
  23         private Chord chord = null;
  24         private int noteNumber = -1;
  25         private boolean isDark = false;
  26         private boolean isMouseEntered = false;
  27         /**
  28          * 和音表示ラベルを構築します。
  29          * @param defaultString 初期表示する文字列
  30          * @param chordMatrix このラベルをクリックしたときに鳴らす和音ボタンマトリクス
  31          * @param keyboard このラベルをクリックしたときに鳴らす鍵盤
  32          */
  33         public ChordDisplayLabel(String defaultString, ChordMatrix chordMatrix, PianoKeyboard keyboard) {
  34                 super(defaultString, JLabel.CENTER);
  35                 this.defaultString = defaultString;
  36                 if( chordMatrix == null ) return;
  37                 addMouseListener(new MouseAdapter() {
  38                         @Override
  39                         public void mousePressed(MouseEvent e) {
  40                                 if( chord != null ) { // コードが表示されている場合
  41                                         if( (e.getModifiersEx() & InputEvent.BUTTON3_DOWN_MASK) != 0 ) {
  42                                                 // 右クリックでコードを止める
  43                                                 chordMatrix.setSelectedChord((Chord)null);
  44                                         }
  45                                         else {
  46                                                 // コードを鳴らす。
  47                                                 //   キーボードが指定されている場合、オリジナルキー（カポ反映済）のコードを使う。
  48                                                 if( keyboard == null )
  49                                                         chordMatrix.setSelectedChord(chord);
  50                                                 else
  51                                                         chordMatrix.setSelectedChordCapo(chord);
  52                                         }
  53                                 }
  54                                 else if( noteNumber >= 0 ) { // 音階が表示されている場合
  55                                         keyboard.noteOn(noteNumber);
  56                                 }
  57                         }
  58                         @Override
  59                         public void mouseReleased(MouseEvent e) {
  60                                 if( noteNumber >= 0 ) keyboard.noteOff(noteNumber);
  61                         }
  62                         @Override
  63                         public void mouseEntered(MouseEvent e) { mouseEntered(true); }
  64                         @Override
  65                         public void mouseExited(MouseEvent e) { mouseEntered(false); }
  66                         private void mouseEntered(boolean isMouseEntered) {
  67                                 ChordDisplayLabel.this.isMouseEntered = isMouseEntered;
  68                                 if( noteNumber >= 0 || chord != null ) repaint();
  69                         }
  70                 });
  71                 addMouseWheelListener(chordMatrix);
  72         }
  73         @Override
  74         public void paint(Graphics g) {
  75                 super.paint(g);
  76                 Dimension d = getSize();
  77                 if( isMouseEntered && (noteNumber >= 0 || chord != null) ) {
  78                         g.setColor(Color.gray);
  79                         g.drawRect( 0, 0, d.width-1, d.height-1 );
  80                 }
  81         }
  82         /**
  83          * 音階を表示します。
  84          * @param noteNumber MIDIノート番号
  85          * @param isRhythmPart リズムパートのときtrue
  86          */
  87         public void setNote(int noteNumber, boolean isRhythmPart) {
  88                 setToolTipText(null);
  89                 this.chord = null;
  90                 if( (this.noteNumber = noteNumber) < 0 ) {
  91                         setText(defaultString);
  92                         return;
  93                 }
  94                 if( isRhythmPart ) {
  95                         String pn = MIDISpec.getPercussionName(noteNumber);
  96                         setText("MIDI note No." + noteNumber + " : " + pn);
  97                 }
  98                 else {
  99                         String ns = Note.noteNumberToSymbol(noteNumber);
 100                         double f = MIDISpec.noteNumberToFrequency(noteNumber);
 101                         setText("Note: "+ns+"  -  MIDI note No."+noteNumber+" : "+Math.round(f)+"Hz");
 102                 }
 103         }
 104         /**
 105          * 和音（コード名）を表示します。
 106          * @param chord 和音
 107          */
 108         public void setChord(Chord chord) {
 109                 this.noteNumber = -1;
 110                 if( (this.chord = chord) == null ) {
 111                         setText(defaultString);
 112                         setToolTipText(null);
 113                 }
 114                 else {
 115                         setChordText();
 116                         setToolTipText("Chord: "+chord.toName());
 117                 }
 118         }
 119         /**
 120          * 表示をクリアします。
 121          */
 122         public void clear() { setNote(-1, false); }
 123         /**
 124          * ダークモードのON/OFFを切り替えます。
 125          * @param isDark ダークモードONのときtrue
 126          */
 127         public void setDarkMode(boolean isDark) {
 128                 this.isDark = isDark;
 129                 if( chord != null ) setChordText();
 130         }
 131         private void setChordText() {
 132                 setText(chord.toHtmlString(isDark ? "#FFCC33" : "maroon"));
 133         }
 134 }