src/camidion/chordhelper/midieditor/Base64Dialog.java

   1 package camidion.chordhelper.midieditor;\r
   2 import java.awt.Dimension;\r
   3 import java.awt.event.ActionEvent;\r
   4 import java.io.IOException;\r
   5 import java.util.regex.Pattern;\r
   6 \r
   7 import javax.sound.midi.InvalidMidiDataException;\r
   8 import javax.swing.AbstractAction;\r
   9 import javax.swing.Action;\r
  10 import javax.swing.Box;\r
  11 import javax.swing.BoxLayout;\r
  12 import javax.swing.JButton;\r
  13 import javax.swing.JDialog;\r
  14 import javax.swing.JLabel;\r
  15 import javax.swing.JOptionPane;\r
  16 import javax.swing.JPanel;\r
  17 import javax.swing.JScrollPane;\r
  18 import javax.swing.JTextArea;\r
  19 \r
  20 import org.apache.commons.codec.binary.Base64;\r
  21 \r
  22 import camidion.chordhelper.ButtonIcon;\r
  23 import camidion.chordhelper.ChordHelperApplet;\r
  24 \r
  25 /**\r
  26  * Base64テキスト入力ダイアログ\r
  27  */\r
  28 public class Base64Dialog extends JDialog {\r
  29         private Base64TextArea base64TextArea = new Base64TextArea(8,56);\r
  30         private MidiEditor midiEditor;\r
  31         /**\r
  32          * Base64デコードアクション\r
  33          */\r
  34         public Action addBase64Action = new AbstractAction(\r
  35                 "Base64 Decode & Add to PlayList",\r
  36                 new ButtonIcon(ButtonIcon.EJECT_ICON)\r
  37         ) {\r
  38                 {\r
  39                         putValue(\r
  40                                 Action.SHORT_DESCRIPTION,\r
  41                                 "Base64デコードして、プレイリストへ追加"\r
  42                         );\r
  43                 }\r
  44                 @Override\r
  45                 public void actionPerformed(ActionEvent event) {\r
  46                         byte[] data = getMIDIData();\r
  47                         if( data == null || data.length == 0 ) {\r
  48                                 String message = "No data entered - データが入力されていません。";\r
  49                                 JOptionPane.showMessageDialog(\r
  50                                         Base64Dialog.this, message,\r
  51                                         ChordHelperApplet.VersionInfo.NAME,\r
  52                                         JOptionPane.WARNING_MESSAGE\r
  53                                 );\r
  54                                 base64TextArea.requestFocusInWindow();\r
  55                                 return;\r
  56                         }\r
  57                         PlaylistTableModel sltm = midiEditor.sequenceListTable.getModel();\r
  58                         try {\r
  59                                 sltm.addSequence(data, null);\r
  60                         } catch(IOException | InvalidMidiDataException e) {\r
  61                                 String message = "例外 "+e+" が発生しました。"+e.getMessage();\r
  62                                 e.printStackTrace();\r
  63                                 midiEditor.showWarning(message);\r
  64                                 base64TextArea.requestFocusInWindow();\r
  65                                 return;\r
  66                         }\r
  67                         setVisible(false);\r
  68                 }\r
  69         };\r
  70         /**\r
  71          * Base64テキストクリアアクション\r
  72          */\r
  73         public Action clearAction = new AbstractAction("Clear") {\r
  74                 @Override\r
  75                 public void actionPerformed(ActionEvent e) {\r
  76                         base64TextArea.setText(null);\r
  77                 }\r
  78         };\r
  79         private static class Base64TextArea extends JTextArea {\r
  80                 private static final Pattern headerLine =\r
  81                         Pattern.compile( "^.*:.*$", Pattern.MULTILINE );\r
  82                 public Base64TextArea(int rows, int columns) {\r
  83                         super(rows,columns);\r
  84                 }\r
  85                 public byte[] getBinary() {\r
  86                         String text = headerLine.matcher(getText()).replaceAll("");\r
  87                         return Base64.decodeBase64(text.getBytes());\r
  88                 }\r
  89                 public void setBinary(byte[] binary_data, String content_type, String filename) {\r
  90                         if( binary_data != null && binary_data.length > 0 ) {\r
  91                                 String header = "";\r
  92                                 if( content_type != null && filename != null ) {\r
  93                                         header += "Content-Type: " + content_type + "; name=\"" + filename + "\"\n";\r
  94                                         header += "Content-Transfer-Encoding: base64\n";\r
  95                                         header += "\n";\r
  96                                 }\r
  97                                 setText(header + new String(Base64.encodeBase64Chunked(binary_data)) + "\n");\r
  98                         }\r
  99                 }\r
 100         }\r
 101         /**\r
 102          * Base64テキスト入力ダイアログを構築します。\r
 103          * @param midiEditor 親画面となるMIDIエディタ\r
 104          */\r
 105         public Base64Dialog(MidiEditor midiEditor) {\r
 106                 this.midiEditor = midiEditor;\r
 107                 setTitle("Base64-encoded MIDI sequence - " + ChordHelperApplet.VersionInfo.NAME);\r
 108                 try {\r
 109                         Base64.decodeBase64("".getBytes());\r
 110                         base64Available = true;\r
 111                 } catch( NoClassDefFoundError e ) {\r
 112                         base64Available = false;\r
 113                 }\r
 114                 if( base64Available ) {\r
 115                         add(new JPanel() {{\r
 116                                 setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));\r
 117                                 add(new JPanel() {{\r
 118                                         setLayout(new BoxLayout(this, BoxLayout.LINE_AXIS));\r
 119                                         add(new JLabel("Base64-encoded MIDI sequence:"));\r
 120                                         add(Box.createRigidArea(new Dimension(10, 0)));\r
 121                                         add(new JButton(addBase64Action){{setMargin(ChordHelperApplet.ZERO_INSETS);}});\r
 122                                         add(new JButton(clearAction){{setMargin(ChordHelperApplet.ZERO_INSETS);}});\r
 123                                 }});\r
 124                                 add(new JScrollPane(base64TextArea));\r
 125                         }});\r
 126                 }\r
 127                 setBounds( 300, 250, 660, 300 );\r
 128         }\r
 129         private boolean base64Available;\r
 130         /**\r
 131          * {@link Base64} が使用できるかどうかを返します。\r
 132          * @return Apache Commons Codec ライブラリが利用できる状態ならtrue\r
 133          */\r
 134         public boolean isBase64Available() {\r
 135                 return base64Available;\r
 136         }\r
 137         /**\r
 138          * バイナリー形式でMIDIデータを返します。\r
 139          * @return バイナリー形式のMIDIデータ\r
 140          */\r
 141         public byte[] getMIDIData() {\r
 142                 return base64TextArea.getBinary();\r
 143         }\r
 144         /**\r
 145          * バイナリー形式のMIDIデータを設定します。\r
 146          * @param midiData バイナリー形式のMIDIデータ\r
 147          */\r
 148         public void setMIDIData( byte[] midiData ) {\r
 149                 base64TextArea.setBinary(midiData, null, null);\r
 150         }\r
 151         /**\r
 152          * バイナリー形式のMIDIデータを、ファイル名をつけて設定します。\r
 153          * @param midiData バイナリー形式のMIDIデータ\r
 154          * @param filename ファイル名\r
 155          */\r
 156         public void setMIDIData( byte[] midiData, String filename ) {\r
 157                 base64TextArea.setBinary(midiData, "audio/midi", filename);\r
 158                 base64TextArea.selectAll();\r
 159         }\r
 160         /**\r
 161          * Base64形式でMIDIデータを返します。\r
 162          * @return  Base64形式のMIDIデータ\r
 163          */\r
 164         public String getBase64Data() {\r
 165                 return base64TextArea.getText();\r
 166         }\r
 167         /**\r
 168          * Base64形式のMIDIデータを設定します。\r
 169          * @param base64Data Base64形式のMIDIデータ\r
 170          */\r
 171         public void setBase64Data( String base64Data ) {\r
 172                 base64TextArea.setText(null);\r
 173                 base64TextArea.append(base64Data);\r
 174         }\r
 175 }\r