phosphor-tui 0.3.5

Terminal UI frontend for the Phosphor DAW
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310

//! App methods: undo redo.

use super::*;

impl App {

    // ── Undo / Redo ──

    pub(crate) fn perform_undo(&mut self) {
        use crate::debug_log as dbg;
        let action = match self.nav.undo_stack.pop_undo() {
            Some(a) => a,
            None => {
                dbg::system("undo: stack empty");
                self.status_message = Some(("nothing to undo".into(), std::time::Instant::now()));
                return;
            }
        };

        dbg::system(&format!("undo: popped action {:?}", std::mem::discriminant(&action)));

        match action.clone() {
            UndoAction::DrawNote { track_idx, clip_idx, note } => {
                // Undo draw = remove the note
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.notes.retain(|n| !(n.note == note.note && (n.start_frac - note.start_frac).abs() < 0.001));
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                self.status_message = Some(("undo: note removed".into(), std::time::Instant::now()));
            }
            UndoAction::RemoveNote { track_idx, clip_idx, note } => {
                // Undo remove = add the note back
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.notes.push(note);
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                self.status_message = Some(("undo: note restored".into(), std::time::Instant::now()));
            }
            UndoAction::DeleteNotes { track_idx, clip_idx, notes } => {
                // Undo bulk delete = add all notes back
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.notes.extend(notes);
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                dbg::system("undo: notes restored");
                self.status_message = Some(("undo: notes restored".into(), std::time::Instant::now()));
            }
            UndoAction::PasteNotes { track_idx, clip_idx, notes } => {
                // Undo paste = remove the pasted notes
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        for del in &notes {
                            clip.notes.retain(|n| {
                                !(n.note == del.note
                                    && (n.start_frac - del.start_frac).abs() < 0.001
                                    && (n.duration_frac - del.duration_frac).abs() < 0.001)
                            });
                        }
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                dbg::system(&format!("undo: removed {} pasted notes", notes.len()));
                self.status_message = Some(("undo: paste removed".into(), std::time::Instant::now()));
            }
            UndoAction::ModifyClip { track_idx, clip_idx, ref prev_notes, ref prev_hidden, prev_start, prev_length } => {
                // Undo clip modification = restore position, length, notes, hidden_notes
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.start_tick = prev_start;
                        clip.length_ticks = prev_length;
                        clip.notes = prev_notes.clone();
                        clip.hidden_notes = prev_hidden.clone();
                        let ppq = phosphor_core::transport::Transport::PPQ;
                        let beats = (prev_length as f64 / ppq as f64).ceil() as u16;
                        clip.width = beats.max(2);
                    }
                }
                // Sync clip position + events to audio
                self.sync_clip_to_audio(track_idx, clip_idx);
                dbg::system(&format!("undo: clip restored start={} len={}", prev_start, prev_length));
                self.status_message = Some(("undo: clip restored".into(), std::time::Instant::now()));
            }
            UndoAction::MoveNotes { track_idx, clip_idx, ref before } => {
                // Undo move = restore each note to its original position
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        for (idx, original) in before {
                            if let Some(note) = clip.notes.get_mut(*idx) {
                                *note = *original;
                            }
                        }
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                dbg::system(&format!("undo: restored {} moved notes", before.len()));
                self.status_message = Some(("undo: notes restored".into(), std::time::Instant::now()));
            }
            UndoAction::AddClip { track_idx, clip_idx } => {
                // Undo add = remove the clip
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if clip_idx < track.clips.len() {
                        // Remove from audio thread
                        if let Some(mid) = track.mixer_id {
                            let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::RemoveClip {
                                track_id: mid,
                                clip_index: clip_idx,
                            });
                        }
                        track.clips.remove(clip_idx);
                    }
                }
                // Fix selection
                if let crate::state::TrackElement::Clip(i) = self.nav.track_element {
                    if i >= clip_idx {
                        let num = self.nav.tracks.get(track_idx).map(|t| t.clips.len()).unwrap_or(0);
                        if num > 0 {
                            self.nav.track_element = crate::state::TrackElement::Clip(i.saturating_sub(1).min(num - 1));
                        } else {
                            self.nav.track_element = crate::state::TrackElement::Label;
                        }
                    }
                }
                self.nav.sync_clip_view_target();
                dbg::system(&format!("undo: removed added clip {} on track {}", clip_idx, track_idx));
                self.status_message = Some(("undo: clip removed".into(), std::time::Instant::now()));
            }
            UndoAction::DeleteClip { track_idx, clip_idx, clip } => {
                // Undo clip delete = insert it back
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    let idx = clip_idx.min(track.clips.len());
                    track.clips.insert(idx, clip.clone());
                    // Recreate clip on audio thread
                    if let Some(mid) = track.mixer_id {
                        let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::CreateClip {
                            track_id: mid,
                            start_tick: clip.start_tick,
                            length_ticks: clip.length_ticks,
                        });
                        let events = phosphor_core::clip::NoteSnapshot::to_clip_events(
                            &clip.notes, clip.length_ticks,
                        );
                        let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::UpdateClip {
                            track_id: mid, clip_index: idx, events,
                        });
                    }
                }
                self.status_message = Some(("undo: clip restored".into(), std::time::Instant::now()));
            }
            UndoAction::DeleteTrack { track_idx: _, track, mixer_id: _ } => {
                // Undo track delete = re-create it
                let instrument = match track.instrument_type {
                    Some(i) => i,
                    None => return,
                };
                // Re-create the track on the audio side
                self.create_instrument_track(instrument);
                // Restore the saved state over the newly created track
                let new_idx = self.nav.track_cursor;
                if let Some(new_track) = self.nav.tracks.get_mut(new_idx) {
                    new_track.name = track.name.clone();
                    new_track.muted = track.muted;
                    new_track.soloed = track.soloed;
                    new_track.armed = track.armed;
                    new_track.volume = track.volume;
                    new_track.color_index = track.color_index;
                    new_track.synth_params = track.synth_params.clone();
                    new_track.clips = track.clips.clone();
                    new_track.sync_to_audio();

                    if let Some(mid) = new_track.mixer_id {
                        // Send params to audio
                        for (i, &v) in new_track.synth_params.iter().enumerate() {
                            let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::SetParameter {
                                track_id: mid, param_index: i, value: v,
                            });
                        }
                        // Recreate clips on the audio thread
                        for (ci, clip) in new_track.clips.iter().enumerate() {
                            let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::CreateClip {
                                track_id: mid,
                                start_tick: clip.start_tick,
                                length_ticks: clip.length_ticks,
                            });
                            let events = phosphor_core::clip::NoteSnapshot::to_clip_events(
                                &clip.notes, clip.length_ticks,
                            );
                            let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::UpdateClip {
                                track_id: mid, clip_index: ci, events,
                            });
                        }
                        dbg::system(&format!("undo: restored {} clips to audio", new_track.clips.len()));
                    }
                }
                self.status_message = Some(("undo: track restored".into(), std::time::Instant::now()));
                dbg::system("undo: track restored");
            }
        }

        self.nav.undo_stack.push_redo(action);
    }


    pub(crate) fn perform_redo(&mut self) {
        let action = match self.nav.undo_stack.pop_redo() {
            Some(a) => a,
            None => {
                self.status_message = Some(("nothing to redo".into(), std::time::Instant::now()));
                return;
            }
        };

        // Redo = do the opposite of undo (re-apply the original action)
        match action.clone() {
            UndoAction::DrawNote { track_idx, clip_idx, note } => {
                // Redo draw = add the note again
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.notes.push(note);
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                self.status_message = Some(("redo: note drawn".into(), std::time::Instant::now()));
            }
            UndoAction::RemoveNote { track_idx, clip_idx, note } => {
                // Redo remove = remove the note again
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.notes.retain(|n| !(n.note == note.note && (n.start_frac - note.start_frac).abs() < 0.001));
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                self.status_message = Some(("redo: note removed".into(), std::time::Instant::now()));
            }
            UndoAction::DeleteNotes { track_idx, clip_idx, ref notes } => {
                // Redo delete = remove the notes again
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        for del_note in notes {
                            clip.notes.retain(|n| !(n.note == del_note.note && (n.start_frac - del_note.start_frac).abs() < 0.001));
                        }
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                self.status_message = Some(("redo: notes deleted".into(), std::time::Instant::now()));
            }
            UndoAction::PasteNotes { track_idx, clip_idx, ref notes } => {
                // Redo paste = add the notes back
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if let Some(clip) = track.clips.get_mut(clip_idx) {
                        clip.notes.extend(notes.iter().cloned());
                    }
                }
                self.send_clip_update_for(track_idx, clip_idx);
                self.status_message = Some(("redo: paste restored".into(), std::time::Instant::now()));
            }
            UndoAction::ModifyClip { .. } => {
                self.status_message = Some(("redo: not available for clip modify".into(), std::time::Instant::now()));
            }
            UndoAction::MoveNotes { .. } => {
                self.status_message = Some(("redo: not available for moves".into(), std::time::Instant::now()));
            }
            UndoAction::AddClip { .. } => {
                self.status_message = Some(("redo: not available for paste/duplicate".into(), std::time::Instant::now()));
            }
            UndoAction::DeleteClip { track_idx, clip_idx, .. } => {
                // Redo clip delete = remove it again
                if let Some(track) = self.nav.tracks.get_mut(track_idx) {
                    if clip_idx < track.clips.len() {
                        if let Some(mid) = track.mixer_id {
                            let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::RemoveClip {
                                track_id: mid,
                                clip_index: clip_idx,
                            });
                        }
                        track.clips.remove(clip_idx);
                    }
                }
                self.status_message = Some(("redo: clip deleted".into(), std::time::Instant::now()));
            }
            UndoAction::DeleteTrack { track_idx, .. } => {
                // Redo track delete = remove the track again
                if track_idx < self.nav.tracks.len() {
                    if let Some(mid) = self.nav.tracks[track_idx].mixer_id {
                        let _ = self.engine.shared.mixer_command_tx.send(MixerCommand::RemoveTrack { track_id: mid });
                    }
                    self.nav.tracks.remove(track_idx);
                    if self.nav.track_cursor >= self.nav.tracks.len() && self.nav.track_cursor > 0 {
                        self.nav.track_cursor -= 1;
                    }
                    self.nav.track_selected = false;
                    self.nav.clip_view_visible = false;
                    self.engine.panic();
                }
                self.status_message = Some(("redo: track deleted".into(), std::time::Instant::now()));
            }
        }

        // Push back to undo stack (without clearing redo) so it can be undone again
        self.nav.undo_stack.push_undo_only(action);
    }

    // ── Piano roll highlight delete ──

}