曲選択動作の見直し

[midichordhelper/MIDIChordHelper.git] / src / camidion / chordhelper / midieditor / PlaylistTable.java

diff --git a/src/camidion/chordhelper/midieditor/PlaylistTable.java b/src/camidion/chordhelper/midieditor/PlaylistTable.java
index 9866963..276e58c 100644 (file)
--- a/src/camidion/chordhelper/midieditor/PlaylistTable.java
+++ b/src/camidion/chordhelper/midieditor/PlaylistTable.java
@@ -21,6 +21,7 @@ import javax.swing.AbstractAction;
 import javax.swing.AbstractCellEditor;
 import javax.swing.Action;
 import javax.swing.DefaultCellEditor;
+import javax.swing.Icon;
 import javax.swing.JButton;
 import javax.swing.JComboBox;
 import javax.swing.JComponent;
@@ -29,6 +30,9 @@ import javax.swing.JOptionPane;
 import javax.swing.JRootPane;
 import javax.swing.JTable;
 import javax.swing.JToggleButton;
+import javax.swing.ListSelectionModel;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
 import javax.swing.event.TableModelEvent;
 import javax.swing.filechooser.FileNameExtensionFilter;
 import javax.swing.table.JTableHeader;
@@ -53,13 +57,49 @@ public class PlaylistTable extends JTable {
        /** MIDIデバイスダイアログを開くアクション */
        private Action midiDeviceDialogOpenAction;
        /**
+        * 選択されたMIDIシーケンスのテーブルモデルを返します。
+        * @return 選択されたMIDIシーケンスのテーブルモデル（非選択時はnull）
+        */
+       private SequenceTrackListTableModel getSelectedSequenceModel() {
+               if( selectionModel.isSelectionEmpty() ) return null;
+               int selectedIndex = selectionModel.getMinSelectionIndex();
+               List<SequenceTrackListTableModel> list = getModel().getSequenceModelList();
+               return selectedIndex >= list.size() ? null : list.get(selectedIndex);
+       }
+       /**
+        * 行が選択されているときだけイネーブルになるアクション
+        */
+       private abstract class SelectedSequenceAction extends AbstractAction implements ListSelectionListener {
+               public SelectedSequenceAction(String name, Icon icon, String tooltip) {
+                       super(name,icon); init(tooltip);
+               }
+               public SelectedSequenceAction(String name, String tooltip) {
+                       super(name); init(tooltip);
+               }
+               @Override
+               public void valueChanged(ListSelectionEvent e) {
+                       if( e.getValueIsAdjusting() ) return;
+                       setEnebledBySelection();
+               }
+               protected void setEnebledBySelection() {
+                       int index = selectionModel.getMinSelectionIndex();
+                       setEnabled(index >= 0);
+               }
+               private void init(String tooltip) {
+                       putValue(Action.SHORT_DESCRIPTION, tooltip);
+                       selectionModel.addListSelectionListener(this);
+                       setEnebledBySelection();
+               }
+       }
+       /**
         * プレイリストビューを構築します。
         * @param model プレイリストデータモデル
         * @param midiDeviceDialogOpenAction MIDIデバイスダイアログを開くアクション
         * @param trackListTable トラックリストテーブル（子テーブル）
         */
        public PlaylistTable(PlaylistTableModel model, Action midiDeviceDialogOpenAction, SequenceTrackListTable trackListTable) {
-               super(model, null, model.getSelectionModel());
+               super(model);
+               setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                this.midiDeviceDialogOpenAction = midiDeviceDialogOpenAction;
                try {
                        midiFileChooser = new MidiFileChooser();
@@ -89,7 +129,7 @@ public class PlaylistTable extends JTable {
                        }
                        @Override
                        public void actionPerformed(ActionEvent e) {
-                               SequenceTrackListTableModel sequenceModel = getModel().getSelectedSequenceModel();
+                               SequenceTrackListTableModel sequenceModel = getSelectedSequenceModel();
                                byte[] data = null;
                                String filename = null;
                                if( sequenceModel != null ) {
@@ -114,7 +154,8 @@ public class PlaylistTable extends JTable {
                });
                selectionModel.addListSelectionListener(event->{
                        if( event.getValueIsAdjusting() ) return;
-                       trackListTable.setModel(getModel().getSelectedSequenceModel());
+                       trackListTable.setModel(getSelectedSequenceModel());
+                       trackListTable.titleLabel.showMidiFileNumber(selectionModel);
                });
        }
        private TableColumn lengthColumn;
@@ -280,13 +321,12 @@ public class PlaylistTable extends JTable {
         * @return 追加されたMIDIファイルのインデックス値（先頭が0、追加されなかった場合は-1）
         */
        public int add(List<File> fileList) {
-               PlaylistTableModel model = getModel();
                int firstIndex = -1;
                Iterator<File> itr = fileList.iterator();
                while(itr.hasNext()) {
                        File file = itr.next();
                        try (FileInputStream in = new FileInputStream(file)) {
-                               int lastIndex = model.add(MidiSystem.getSequence(in), file.getName());
+                               int lastIndex = ((PlaylistTableModel)dataModel).add(MidiSystem.getSequence(in), file.getName());
                                if( firstIndex < 0 ) firstIndex = lastIndex;
                        } catch(IOException|InvalidMidiDataException e) {
                                String message = "Could not open as MIDI file "+file+"\n"+e;
@@ -316,7 +356,7 @@ public class PlaylistTable extends JTable {
        /**
         * シーケンスを削除するアクション
         */
-       Action deleteSequenceAction = getModel().new SelectedSequenceAction(
+       Action deleteSequenceAction = new SelectedSequenceAction(
                "Delete", MidiSequenceEditorDialog.deleteIcon,
                "Delete selected MIDI sequence - 選択した曲をプレイリストから削除"
        ) {
@@ -327,8 +367,8 @@ public class PlaylistTable extends JTable {
                public void actionPerformed(ActionEvent event) {
                        PlaylistTableModel model = getModel();
                        if( midiFileChooser != null ) {
-                               SequenceTrackListTableModel seqModel = model.getSelectedSequenceModel();
-                               if( seqModel != null && seqModel.isModified() && JOptionPane.showConfirmDialog(
+                               SequenceTrackListTableModel sequenceModel = getSelectedSequenceModel();
+                               if( sequenceModel != null && sequenceModel.isModified() && JOptionPane.showConfirmDialog(
                                                ((JComponent)event.getSource()).getRootPane(),
                                                CONFIRM_MESSAGE,
                                                ChordHelperApplet.VersionInfo.NAME,
@@ -336,8 +376,8 @@ public class PlaylistTable extends JTable {
                                                JOptionPane.WARNING_MESSAGE) != JOptionPane.YES_OPTION
                                ) return;
                        }
-                       if( ! model.getSelectionModel().isSelectionEmpty() ) try {
-                               model.remove(model.getSelectionModel().getMinSelectionIndex());
+                       if( ! selectionModel.isSelectionEmpty() ) try {
+                               model.remove(selectionModel.getMinSelectionIndex());
                        } catch (Exception ex) {
                                JOptionPane.showMessageDialog(
                                                ((JComponent)event.getSource()).getRootPane(), ex,
@@ -354,13 +394,13 @@ public class PlaylistTable extends JTable {
                /**
                 * ファイル保存アクション
                 */
-               public Action saveMidiFileAction = getModel().new SelectedSequenceAction(
+               public Action saveMidiFileAction = new SelectedSequenceAction(
                        "Save",
                        "Save selected MIDI sequence to file - 選択したMIDIシーケンスをファイルに保存"
                ) {
                        @Override
                        public void actionPerformed(ActionEvent event) {
-                               SequenceTrackListTableModel sequenceModel = getModel().getSelectedSequenceModel();
+                               SequenceTrackListTableModel sequenceModel = getSelectedSequenceModel();
                                if( sequenceModel == null ) return;
                                String fn = sequenceModel.getFilename();
                                if( fn != null && ! fn.isEmpty() ) setSelectedFile(new File(fn));