feat: add heal cut editor action

main.py

@@ -39,7 +39,7 @@ from core.ffmpeg import (
     build_ffmpeg_command, build_audio_extract_command, build_audio_clip_command,
     build_crossfade_merge_command,
     build_audio_delete_command, build_audio_silence_command,
-    build_audio_reverse_command,
+    build_audio_reverse_command, build_audio_heal_delete_command,
     audio_edit_filters, probe_duration, detect_hw_encoders,
 )
 from core.db import ProcessedDB
@@ -4248,8 +4248,10 @@ class AudioEditorDialog(QDialog):
         self._last_saved = None            # path of the last Save-as (for library)
         self._play_proc = None             # ffplay audition process
         self._clip_dur = 0.0               # true duration of the current version
+        self._join_preview: tuple[float, float] | None = None
 
         self._wave = AudioWaveform()
+        self._btn_heal_cut = QPushButton("Heal Cut")
         self._btn_delete = QPushButton("Delete")
         self._btn_silence = QPushButton("Silence")
         self._btn_reverse = QPushButton("Reverse")
@@ -4260,7 +4262,8 @@ class AudioEditorDialog(QDialog):
         self._btn_play.setCheckable(True)
         self._btn_save_as = QPushButton("Save as…")
         self._btn_close = QPushButton("Close")
-        for b, slot in ((self._btn_delete, self._on_delete),
+        for b, slot in ((self._btn_heal_cut, self._on_heal_cut),
+                        (self._btn_delete, self._on_delete),
                         (self._btn_silence, self._on_silence),
                         (self._btn_reverse, self._on_reverse),
                         (self._btn_trim, self._on_trim),
@@ -4274,6 +4277,7 @@ class AudioEditorDialog(QDialog):
         outer = QVBoxLayout(self)
         outer.addWidget(self._wave)
         ops = QHBoxLayout()
+        ops.addWidget(self._btn_heal_cut)
         for b in (self._btn_delete, self._btn_silence, self._btn_reverse,
                   self._btn_trim):
             ops.addWidget(b)
@@ -4326,7 +4330,8 @@ class AudioEditorDialog(QDialog):
             return None
         return (s, e)
 
-    def _apply_op(self, build_fn, whole_clip_ok: bool = True) -> None:
+    def _apply_op(self, build_fn, whole_clip_ok: bool = True,
+                  after_success=None) -> None:
         se = self._selection_secs()
         if se is None:
             self._set_status("Select a region first")
@@ -4354,6 +4359,8 @@ class AudioEditorDialog(QDialog):
             self._ver_idx += 1
             self._temps.add(tmp)
             self._reload()
+            if after_success is not None:
+                after_success(s)
             self._set_status("")
         else:
             try:
@@ -4362,6 +4369,13 @@ class AudioEditorDialog(QDialog):
                 pass
             self._set_status("Edit failed")
 
+    def _prepare_join_preview(self, seam_t: float) -> None:
+        self._join_preview = (max(0.0, seam_t - 1.0), seam_t + 1.0)
+
+    def _on_heal_cut(self):
+        self._apply_op(build_audio_heal_delete_command, whole_clip_ok=False,
+                       after_success=self._prepare_join_preview)
+
     def _on_delete(self):
         self._apply_op(build_audio_delete_command, whole_clip_ok=False)
 

tests/test_ui_structure.py

@@ -795,8 +795,8 @@ def test_audio_editor_dialog_scaffold(win):
     assert dlg._current() == "/nonexistent.wav"
     # widgets present
     assert dlg._wave is not None
-    for name in ("_btn_delete", "_btn_silence", "_btn_reverse", "_btn_trim",
-                 "_btn_undo", "_btn_redo", "_btn_save_as"):
+    for name in ("_btn_heal_cut", "_btn_delete", "_btn_silence", "_btn_reverse",
+                 "_btn_trim", "_btn_undo", "_btn_redo", "_btn_save_as"):
         assert isinstance(getattr(dlg, name), QPushButton)
     # undo disabled at the base version, redo disabled with no forward history
     assert not dlg._btn_undo.isEnabled()
@@ -821,6 +821,28 @@ def test_editor_delete_builds_command(win, tmp_path, monkeypatch):
     assert seen["inp"] == str(src) and seen["s"] == 1.0 and seen["e"] == 3.0
 
 
+def test_editor_heal_cut_builds_command(win, tmp_path, monkeypatch):
+    import main as m, pytest
+    src = tmp_path / "v0.wav"
+    src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    dlg._clip_dur = 6.0
+    dlg._wave.set_view(0.0, 6.0)
+    dlg._wave.set_selection(2.0, 3.0)
+    seen = {}
+    class _Stop(Exception):
+        pass
+    def fake(inp, s, e, out):
+        seen.update(inp=inp, s=s, e=e, out=out)
+        raise _Stop
+    monkeypatch.setattr(m, "build_audio_heal_delete_command", fake)
+    with pytest.raises(_Stop):
+        dlg._on_heal_cut()
+    assert seen["inp"] == str(src)
+    assert seen["s"] == 2.0 and seen["e"] == 3.0
+    assert seen["out"].endswith(".wav")
+
+
 def test_editor_op_no_region_is_safe(win, tmp_path, monkeypatch):
     import main as m
     src = tmp_path / "v0.wav"; src.write_bytes(b"")