Add drive analysis and offset tools to GUI

whipper/gui.py

@@ -6,6 +6,7 @@ import io
 import logging
 import contextlib
 import importlib.util
+import tempfile
 from pathlib import Path
 
 _GUI_IMPORT_ERROR = None
@@ -30,12 +31,13 @@ except (ImportError, ValueError) as exc:
 
 from whipper.common import accurip, common, config, drive, mbngs, task as whipper_task
 from whipper.common.program import Program
-from whipper.command import cd as cd_command
-from whipper.program import cdrdao, cdparanoia, utils
+from whipper.command import cd as cd_command, offset as offset_command
+from whipper.program import arc, cdrdao, cdparanoia, utils
 from whipper.result import result
 
 
 logger = logging.getLogger(__name__)
+APP_ID = "com.github.whipper_team.Whipper"
 
 
 class RipCancelledError(Exception):
@@ -62,6 +64,30 @@ def require_gui_runtime():
         raise RuntimeError(gui_runtime_error_message()) from _GUI_IMPORT_ERROR
 
 
+def _iter_icon_candidates():
+    local_icon = Path(__file__).resolve().parent.parent / "data" / ("%s.svg" % APP_ID)
+    yield local_icon
+
+    data_dirs = []
+    xdg_data_home = os.environ.get("XDG_DATA_HOME")
+    if xdg_data_home:
+        data_dirs.append(Path(xdg_data_home))
+    data_dirs.extend(Path(path) for path in os.environ.get("XDG_DATA_DIRS", "/usr/local/share:/usr/share").split(":") if path)
+
+    for base in data_dirs:
+        yield base / "icons" / "hicolor" / "scalable" / "apps" / ("%s.svg" % APP_ID)
+        yield base / "icons" / "hicolor" / "256x256" / "apps" / ("%s.png" % APP_ID)
+        yield base / "pixmaps" / ("%s.png" % APP_ID)
+        yield base / "pixmaps" / ("%s.svg" % APP_ID)
+
+
+def _resolve_icon_path():
+    for candidate in _iter_icon_candidates():
+        if candidate.is_file():
+            return str(candidate)
+    return None
+
+
 def _format_duration_ms(duration_ms):
     if duration_ms is None:
         return ""
@@ -86,7 +112,13 @@ def _release_duration_distance(metadata, duration_ms):
 class WhipperGui(Gtk.Application if Gtk is not None else object):
     def __init__(self):
         require_gui_runtime()
-        super().__init__(application_id="com.github.whipper_team.WhipperGui")
+        GLib.set_prgname(APP_ID)
+        super().__init__(application_id=APP_ID)
+        GLib.set_application_name("Whipper")
+        Gtk.Window.set_default_icon_name(APP_ID)
+        icon_path = _resolve_icon_path()
+        if icon_path:
+            Gtk.Window.set_default_icon_from_file(icon_path)
         self.window = None
         self.main_pane = None
 
@@ -96,8 +128,10 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self.scan_data = None
         self.scan_runner = None
         self.rip_runner = None
+        self.drive_runner = None
         self.scan_cancel_requested = False
         self.rip_cancel_requested = False
+        self.drive_cancel_requested = False
         self.current_release = None
         self.current_track_number = 0
         self.current_track_total = 0
@@ -108,6 +142,8 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self.country_entry = None
         self.release_id_entry = None
         self.refresh_button = None
+        self.analyze_button = None
+        self.find_offset_button = None
         self.read_button = None
         self.rip_button = None
         self.stop_button = None
@@ -122,6 +158,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self.logger_combo = None
         self.track_template_entry = None
         self.disc_template_entry = None
+        self.compact_mode_label = None
 
         self.release_store = None
         self.release_view = None
@@ -129,6 +166,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self.track_view = None
         self.log_buffer = None
         self.release_details = None
+        self.track_columns = None
 
         self.info_labels = {}
         self.status_label = None
@@ -148,36 +186,61 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
     def _build_window(self):
         window = Gtk.ApplicationWindow(application=self)
         window.set_title("Whipper")
-        window.set_icon_name("com.github.whipper_team.Whipper")
-        window.set_default_size(1120, 760)
-        window.set_border_width(12)
+        window.set_icon_name(APP_ID)
+        icon_path = _resolve_icon_path()
+        if icon_path:
+            window.set_icon_from_file(icon_path)
+        window.set_wmclass(APP_ID, APP_ID)
+        window.set_default_size(1380, 820)
+        window.set_border_width(6)
 
-        root = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=12)
+        root = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
         window.add(root)
 
-        root.pack_start(self._build_controls(), False, False, 0)
-        root.pack_start(self._build_actions(), False, False, 0)
+        root.pack_start(self._build_transport_strip(), False, False, 0)
         root.pack_start(self._build_progress(), False, False, 0)
         root.pack_start(self._build_main_content(), True, True, 0)
-        root.pack_start(self._build_log(), True, True, 0)
 
         self._refresh_devices()
         self._load_gui_settings()
         window.show_all()
         return window
 
+    def _build_transport_strip(self):
+        frame = Gtk.Frame(label="Extraction Control Center")
+        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6, margin=6)
+        frame.add(box)
+        box.pack_start(self._build_controls(), False, False, 0)
+        box.pack_start(self._build_actions(), False, False, 0)
+        return frame
+
     def _build_controls(self):
-        grid = Gtk.Grid(column_spacing=10, row_spacing=10)
+        grid = Gtk.Grid(column_spacing=8, row_spacing=6)
 
         grid.attach(Gtk.Label(label="Drive", xalign=0), 0, 0, 1, 1)
         self.device_combo = Gtk.ComboBoxText()
         self.device_combo.connect("changed", self._on_device_changed)
-        grid.attach(self.device_combo, 1, 0, 2, 1)
+        grid.attach(self.device_combo, 1, 0, 1, 1)
 
-        self.refresh_button = Gtk.Button(label="Refresh Drives")
+        self.refresh_button = Gtk.Button(label="Detect Drives")
         self.refresh_button.connect("clicked", self._on_refresh_clicked)
         self.refresh_button.set_tooltip_text("Refresh the list of detected optical drives")
-        grid.attach(self.refresh_button, 3, 0, 1, 1)
+        grid.attach(self.refresh_button, 2, 0, 1, 1)
+
+        self.analyze_button = Gtk.Button(label="Analyze Drive")
+        self.analyze_button.connect("clicked", self._on_analyze_drive_clicked)
+        self.analyze_button.set_tooltip_text("Probe whether cdparanoia can defeat this drive's audio cache")
+        grid.attach(self.analyze_button, 3, 0, 1, 1)
+
+        self.find_offset_button = Gtk.Button(label="Find Offset")
+        self.find_offset_button.connect("clicked", self._on_find_offset_clicked)
+        self.find_offset_button.set_tooltip_text("Detect the configured read offset using an AccurateRip-known disc")
+        grid.attach(self.find_offset_button, 4, 0, 1, 1)
+
+        grid.attach(Gtk.Label(label="Status", xalign=0), 5, 0, 1, 1)
+        self.status_label = Gtk.Label(label="Idle", xalign=0)
+        self.status_label.set_selectable(True)
+        grid.attach(self.status_label, 6, 0, 1, 1)
 
         grid.attach(Gtk.Label(label="Output", xalign=0), 0, 1, 1, 1)
         self.output_button = Gtk.FileChooserButton(
@@ -186,55 +249,110 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         )
         self.output_button.set_filename(os.path.expanduser("~"))
         self.output_button.connect("file-set", self._on_settings_changed)
-        grid.attach(self.output_button, 1, 1, 3, 1)
+        grid.attach(self.output_button, 1, 1, 2, 1)
+
+        grid.attach(Gtk.Label(label="Logger", xalign=0), 3, 1, 1, 1)
+        self.logger_combo = Gtk.ComboBoxText()
+        for logger_name in sorted(result.getLoggers()):
+            self.logger_combo.append(logger_name, logger_name)
+        self.logger_combo.set_active_id("whipper")
+        self.logger_combo.connect("changed", self._on_settings_changed)
+        grid.attach(self.logger_combo, 4, 1, 2, 1)
+
+        grid.attach(Gtk.Label(label="Cover Art", xalign=0), 0, 2, 1, 1)
+        self.cover_art_combo = Gtk.ComboBoxText()
+        self.cover_art_combo.append("", "Disabled")
+        self.cover_art_combo.append("file", "Save file")
+        self.cover_art_combo.append("embed", "Embed only")
+        self.cover_art_combo.append("complete", "File + embed")
+        self.cover_art_combo.set_active(0)
+        self.cover_art_combo.connect("changed", self._on_settings_changed)
+        grid.attach(self.cover_art_combo, 1, 2, 1, 1)
+
+        grid.attach(Gtk.Label(label="Offset", xalign=0), 2, 2, 1, 1)
+        self.offset_spin = Gtk.SpinButton.new_with_range(-5000, 5000, 1)
+        self.offset_spin.set_value(0)
+        self.offset_spin.connect("value-changed", self._on_settings_changed)
+        grid.attach(self.offset_spin, 3, 2, 1, 1)
+
+        grid.attach(Gtk.Label(label="Retries", xalign=0), 4, 2, 1, 1)
+        self.max_retries_spin = Gtk.SpinButton.new_with_range(0, 20, 1)
+        self.max_retries_spin.set_value(5)
+        self.max_retries_spin.connect("value-changed", self._on_settings_changed)
+        grid.attach(self.max_retries_spin, 5, 2, 1, 1)
 
         grid.attach(Gtk.Label(label="Working Dir", xalign=0), 0, 2, 1, 1)
         self.working_directory_entry = Gtk.Entry()
         self.working_directory_entry.set_placeholder_text("Optional working directory")
         self.working_directory_entry.connect("changed", self._on_settings_changed)
-        grid.attach(self.working_directory_entry, 1, 2, 3, 1)
+        grid.attach(self.working_directory_entry, 1, 3, 2, 1)
 
-        grid.attach(Gtk.Label(label="Country", xalign=0), 0, 3, 1, 1)
+        grid.attach(Gtk.Label(label="Country", xalign=0), 0, 4, 1, 1)
         self.country_entry = Gtk.Entry()
         self.country_entry.set_placeholder_text("Optional MusicBrainz country filter")
         self.country_entry.connect("changed", self._on_settings_changed)
-        grid.attach(self.country_entry, 1, 3, 1, 1)
+        grid.attach(self.country_entry, 1, 4, 1, 1)
 
-        grid.attach(Gtk.Label(label="Release ID", xalign=0), 2, 3, 1, 1)
+        grid.attach(Gtk.Label(label="Release ID", xalign=0), 2, 4, 1, 1)
         self.release_id_entry = Gtk.Entry()
         self.release_id_entry.set_placeholder_text("Optional release override")
         self.release_id_entry.connect("changed", self._on_settings_changed)
-        grid.attach(self.release_id_entry, 3, 3, 1, 1)
+        grid.attach(self.release_id_entry, 3, 4, 3, 1)
 
         return grid
 
     def _build_actions(self):
-        box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=10)
+        box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=8)
 
-        self.read_button = Gtk.Button(label="Read Disc")
+        self.read_button = Gtk.Button(label="Detect TOC")
         self.read_button.connect("clicked", self._on_read_clicked)
         self.read_button.set_tooltip_text("Read TOC and fetch matching MusicBrainz releases")
         box.pack_start(self.read_button, False, False, 0)
 
-        self.rip_button = Gtk.Button(label="Rip Selected Release")
+        self.rip_button = Gtk.Button(label="Secure Rip")
         self.rip_button.connect("clicked", self._on_rip_clicked)
         self.rip_button.set_tooltip_text("Rip the current disc using the selected release metadata")
         self.rip_button.set_sensitive(False)
         box.pack_start(self.rip_button, False, False, 0)
 
-        self.stop_button = Gtk.Button(label="Stop")
+        self.stop_button = Gtk.Button(label="Abort")
         self.stop_button.connect("clicked", self._on_stop_clicked)
         self.stop_button.set_tooltip_text("Cancel the current scan or rip")
         self.stop_button.set_sensitive(False)
         box.pack_start(self.stop_button, False, False, 0)
 
-        self.status_label = Gtk.Label(label="Idle", xalign=0)
-        box.pack_start(self.status_label, True, True, 0)
+        box.pack_start(Gtk.Separator(orientation=Gtk.Orientation.VERTICAL), False, False, 6)
+
+        self.unknown_check = Gtk.CheckButton(label="Unknown")
+        self.unknown_check.set_active(True)
+        self.unknown_check.connect("toggled", self._on_unknown_toggled)
+        box.pack_start(self.unknown_check, False, False, 0)
+
+        self.cdr_check = Gtk.CheckButton(label="CD-R")
+        self.cdr_check.connect("toggled", self._on_settings_changed)
+        box.pack_start(self.cdr_check, False, False, 0)
+
+        self.keep_going_check = Gtk.CheckButton(label="Keep Going")
+        self.keep_going_check.set_active(True)
+        self.keep_going_check.connect("toggled", self._on_settings_changed)
+        box.pack_start(self.keep_going_check, False, False, 0)
+
+        self.overread_check = Gtk.CheckButton(label="Overread")
+        self.overread_check.connect("toggled", self._on_settings_changed)
+        box.pack_start(self.overread_check, False, False, 0)
+
+        box.pack_start(Gtk.Separator(orientation=Gtk.Orientation.VERTICAL), False, False, 6)
+
+        self.compact_mode_label = Gtk.Label(
+            label="Compact EAC-style flow: Detect TOC -> pick release -> Secure Rip",
+            xalign=0,
+        )
+        box.pack_start(self.compact_mode_label, True, True, 0)
         return box
 
     def _build_progress(self):
-        frame = Gtk.Frame(label="Progress")
-        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=8, margin=10)
+        frame = Gtk.Frame(label="Extraction Progress")
+        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=4, margin=6)
         frame.add(box)
 
         self.progress_label = Gtk.Label(label="No task running", xalign=0)
@@ -251,22 +369,36 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         return frame
 
     def _build_main_content(self):
-        pane = Gtk.Paned.new(Gtk.Orientation.HORIZONTAL)
+        pane = Gtk.Paned.new(Gtk.Orientation.VERTICAL)
         pane.set_wide_handle(True)
-        pane.pack1(self._build_left_panel(), resize=True, shrink=False)
-        pane.pack2(self._build_right_panel(), resize=True, shrink=False)
+        pane.pack1(self._build_workspace(), resize=True, shrink=False)
+        pane.pack2(self._build_log(), resize=False, shrink=False)
+        pane.set_position(560)
         self.main_pane = pane
         return pane
 
+    def _build_workspace(self):
+        pane = Gtk.Paned.new(Gtk.Orientation.HORIZONTAL)
+        pane.set_wide_handle(True)
+        pane.pack1(self._build_left_panel(), resize=False, shrink=False)
+        pane.pack2(self._build_right_panel(), resize=True, shrink=False)
+        pane.set_position(360)
+        return pane
+
     def _build_left_panel(self):
-        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=12)
+        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=8)
 
         info_frame = Gtk.Frame(label="Disc")
-        info_grid = Gtk.Grid(column_spacing=10, row_spacing=6, margin=10)
+        info_grid = Gtk.Grid(column_spacing=8, row_spacing=4, margin=6)
         info_frame.add(info_grid)
 
         rows = [
             ("Device", "device"),
+            ("Vendor", "vendor"),
+            ("Model", "model"),
+            ("Release", "release"),
+            ("Read offset", "read_offset"),
+            ("Cache defeat", "cache_defeat"),
             ("Status", "disc_status"),
             ("CDDB", "cddb"),
             ("Disc ID", "mbid"),
@@ -281,22 +413,28 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
 
         box.pack_start(info_frame, False, False, 0)
 
-        release_frame = Gtk.Frame(label="Matching Releases")
-        release_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=8, margin=8)
+        release_frame = Gtk.Frame(label="Metadata / Releases")
+        release_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6, margin=6)
         release_frame.add(release_box)
 
         self.release_store = Gtk.ListStore(str, str, str, str, str, object)
         self.release_view = Gtk.TreeView(model=self.release_store)
+        self.release_view.set_headers_clickable(False)
+        self.release_view.set_enable_search(False)
+        self.release_view.set_grid_lines(Gtk.TreeViewGridLines.BOTH)
         self.release_view.get_selection().connect("changed", self._on_release_selected)
         for index, title in enumerate(["Artist", "Title", "Year", "Type", "Country"]):
             renderer = Gtk.CellRendererText()
             column = Gtk.TreeViewColumn(title, renderer, text=index)
             column.set_resizable(True)
+            if title in {"Artist", "Title"}:
+                column.set_expand(True)
             self.release_view.append_column(column)
 
         scroll = Gtk.ScrolledWindow()
         scroll.set_hexpand(True)
         scroll.set_vexpand(True)
+        scroll.set_min_content_height(180)
         scroll.add(self.release_view)
         release_box.pack_start(scroll, True, True, 0)
 
@@ -304,7 +442,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         details_scroll = Gtk.ScrolledWindow()
         details_scroll.set_hexpand(True)
         details_scroll.set_vexpand(False)
-        details_scroll.set_min_content_height(120)
+        details_scroll.set_min_content_height(90)
         details_frame.add(details_scroll)
 
         self.release_details = Gtk.Label(label="Select a release to inspect it.", xalign=0, yalign=0)
@@ -314,21 +452,39 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         release_box.pack_start(details_frame, False, False, 0)
 
         box.pack_start(release_frame, True, True, 0)
+        box.set_size_request(420, -1)
         return box
 
     def _build_right_panel(self):
-        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=12)
+        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
 
-        tracks_frame = Gtk.Frame(label="Tracks")
-        tracks_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=8, margin=8)
+        tracks_frame = Gtk.Frame(label="Track Extraction Matrix")
+        tracks_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6, margin=6)
         tracks_frame.add(tracks_box)
 
-        self.track_store = Gtk.ListStore(str, str, str, str)
+        self.track_columns = {
+            "number": 0,
+            "status": 1,
+            "artist": 2,
+            "title": 3,
+            "length": 4,
+            "test_crc": 5,
+            "copy_crc": 6,
+            "accuraterip": 7,
+        }
+        self.track_store = Gtk.ListStore(str, str, str, str, str, str, str, str)
         self.track_view = Gtk.TreeView(model=self.track_store)
-        for index, title in enumerate(["#", "Artist", "Title", "Length"]):
+        self.track_view.set_headers_clickable(False)
+        self.track_view.set_enable_search(False)
+        self.track_view.set_grid_lines(Gtk.TreeViewGridLines.BOTH)
+        for index, title in enumerate(["#", "Status", "Artist", "Title", "Length", "Test CRC", "Copy CRC", "AR"]):
             renderer = Gtk.CellRendererText()
             column = Gtk.TreeViewColumn(title, renderer, text=index)
             column.set_resizable(True)
+            if title in {"Artist", "Title"}:
+                column.set_expand(True)
+            if title == "Status":
+                column.set_min_width(140)
             self.track_view.append_column(column)
 
         track_scroll = Gtk.ScrolledWindow()
@@ -337,89 +493,42 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         track_scroll.add(self.track_view)
         tracks_box.pack_start(track_scroll, True, True, 0)
 
+        tracks_box.pack_start(self._build_rip_options(), False, False, 0)
         box.pack_start(tracks_frame, True, True, 0)
-        box.pack_start(self._build_rip_options(), False, False, 0)
         return box
 
     def _build_rip_options(self):
-        frame = Gtk.Frame(label="Rip Options")
-        grid = Gtk.Grid(column_spacing=10, row_spacing=8, margin=10)
+        frame = Gtk.Frame(label="Extraction Setup")
+        grid = Gtk.Grid(column_spacing=8, row_spacing=4, margin=6)
         frame.add(grid)
 
-        self.unknown_check = Gtk.CheckButton(label="Allow ripping without metadata")
-        self.unknown_check.set_active(True)
-        self.unknown_check.connect("toggled", self._on_unknown_toggled)
-        grid.attach(self.unknown_check, 0, 0, 2, 1)
-
-        self.cdr_check = Gtk.CheckButton(label="Allow CD-R")
-        self.cdr_check.connect("toggled", self._on_settings_changed)
-        grid.attach(self.cdr_check, 2, 0, 1, 1)
-
-        self.keep_going_check = Gtk.CheckButton(label="Keep going on failed tracks")
-        self.keep_going_check.set_active(True)
-        self.keep_going_check.connect("toggled", self._on_settings_changed)
-        grid.attach(self.keep_going_check, 0, 1, 2, 1)
-
-        self.overread_check = Gtk.CheckButton(label="Force overread")
-        self.overread_check.connect("toggled", self._on_settings_changed)
-        grid.attach(self.overread_check, 2, 1, 1, 1)
-
-        grid.attach(Gtk.Label(label="Cover Art", xalign=0), 0, 2, 1, 1)
-        self.cover_art_combo = Gtk.ComboBoxText()
-        self.cover_art_combo.append("", "Disabled")
-        self.cover_art_combo.append("file", "Save file")
-        self.cover_art_combo.append("embed", "Embed only")
-        self.cover_art_combo.append("complete", "File + embed")
-        self.cover_art_combo.set_active(0)
-        self.cover_art_combo.connect("changed", self._on_settings_changed)
-        grid.attach(self.cover_art_combo, 1, 2, 1, 1)
-
-        grid.attach(Gtk.Label(label="Max Retries", xalign=0), 2, 2, 1, 1)
-        self.max_retries_spin = Gtk.SpinButton.new_with_range(0, 20, 1)
-        self.max_retries_spin.set_value(5)
-        self.max_retries_spin.connect("value-changed", self._on_settings_changed)
-        grid.attach(self.max_retries_spin, 3, 2, 1, 1)
-
-        grid.attach(Gtk.Label(label="Offset", xalign=0), 0, 3, 1, 1)
-        self.offset_spin = Gtk.SpinButton.new_with_range(-5000, 5000, 1)
-        self.offset_spin.set_value(0)
-        self.offset_spin.connect("value-changed", self._on_settings_changed)
-        grid.attach(self.offset_spin, 1, 3, 1, 1)
-
-        grid.attach(Gtk.Label(label="Logger", xalign=0), 2, 3, 1, 1)
-        self.logger_combo = Gtk.ComboBoxText()
-        for logger_name in sorted(result.getLoggers()):
-            self.logger_combo.append(logger_name, logger_name)
-        self.logger_combo.set_active_id("whipper")
-        self.logger_combo.connect("changed", self._on_settings_changed)
-        grid.attach(self.logger_combo, 3, 3, 1, 1)
-
-        grid.attach(Gtk.Label(label="Track Tpl", xalign=0), 0, 4, 1, 1)
+        grid.attach(Gtk.Label(label="Track Tpl", xalign=0), 0, 0, 1, 1)
         self.track_template_entry = Gtk.Entry()
         self.track_template_entry.set_text(cd_command.DEFAULT_TRACK_TEMPLATE)
         self.track_template_entry.connect("changed", self._on_settings_changed)
-        grid.attach(self.track_template_entry, 1, 4, 3, 1)
+        grid.attach(self.track_template_entry, 1, 0, 3, 1)
 
-        grid.attach(Gtk.Label(label="Disc Tpl", xalign=0), 0, 5, 1, 1)
+        grid.attach(Gtk.Label(label="Disc Tpl", xalign=0), 0, 1, 1, 1)
         self.disc_template_entry = Gtk.Entry()
         self.disc_template_entry.set_text(cd_command.DEFAULT_DISC_TEMPLATE)
         self.disc_template_entry.connect("changed", self._on_settings_changed)
-        grid.attach(self.disc_template_entry, 1, 5, 3, 1)
+        grid.attach(self.disc_template_entry, 1, 1, 3, 1)
 
         note = Gtk.Label(
-            label="The configured drive offset is loaded automatically when whipper knows this drive.",
+            label="Advanced templates stay here; fast extraction switches moved to the control center to reduce vertical space.",
             xalign=0,
         )
         note.set_line_wrap(True)
-        grid.attach(note, 0, 6, 4, 1)
+        grid.attach(note, 0, 2, 4, 1)
 
         return frame
 
     def _build_log(self):
-        frame = Gtk.Frame(label="Log")
+        frame = Gtk.Frame(label="Extraction Log")
         scroll = Gtk.ScrolledWindow()
         scroll.set_hexpand(True)
-        scroll.set_vexpand(True)
+        scroll.set_vexpand(False)
+        scroll.set_min_content_height(150)
         frame.add(scroll)
 
         text_view = Gtk.TextView()
@@ -551,6 +660,8 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
     def _set_running_state(self, running, status):
         self.read_button.set_sensitive(not running)
         self.refresh_button.set_sensitive(not running)
+        self.analyze_button.set_sensitive(not running)
+        self.find_offset_button.set_sensitive(not running)
         self.rip_button.set_sensitive((not running) and self._can_rip())
         self.stop_button.set_sensitive(running)
         self.status_label.set_text(status)
@@ -562,7 +673,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
             self.pulse_id = 0
 
     def _pulse_progress(self):
-        if self.scan_runner is None and self.rip_runner is None:
+        if self.scan_runner is None and self.rip_runner is None and self.drive_runner is None:
             return False
         self.track_bar.pulse()
         return True
@@ -579,9 +690,14 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
             self.device_combo.set_active(0)
             self.read_button.set_sensitive(False)
             self.rip_button.set_sensitive(False)
+            self.analyze_button.set_sensitive(False)
+            self.find_offset_button.set_sensitive(False)
             logger.warning("no optical drives detected")
+            self._update_drive_info(None)
         else:
             self.read_button.set_sensitive(True)
+            self.analyze_button.set_sensitive(True)
+            self.find_offset_button.set_sensitive(True)
             if current in devices:
                 self.device_combo.set_active(devices.index(current))
             else:
@@ -589,6 +705,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
             logger.info("detected %d optical drive(s); active device: %s",
                         len(devices), self.device_combo.get_active_text())
             self._apply_configured_offset()
+            self._update_drive_info(self.device_combo.get_active_text())
 
     def _selected_device(self):
         device = self.device_combo.get_active_text()
@@ -596,20 +713,64 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
             return None
         return device
 
+    def _update_drive_info(self, device):
+        self._set_label("device", device)
+        for key in ["vendor", "model", "release", "read_offset", "cache_defeat"]:
+            self._set_label(key, None)
+        if not device:
+            return
+        try:
+            info = drive.getDeviceInfo(device)
+        except Exception:
+            logger.exception("failed to read drive info for %s", device)
+            return
+        if not info:
+            return
+        vendor, model, release = info
+        self._set_label("vendor", vendor)
+        self._set_label("model", model)
+        self._set_label("release", release)
+        conf = config.Config()
+        try:
+            self._set_label("read_offset", str(conf.getReadOffset(vendor, model, release)))
+        except KeyError:
+            self._set_label("read_offset", "Unknown")
+        try:
+            defeats_cache = conf.getDefeatsCache(vendor, model, release)
+            self._set_label("cache_defeat", "Yes" if defeats_cache else "No")
+        except KeyError:
+            self._set_label("cache_defeat", "Unknown")
+
+    @staticmethod
+    def _parse_offset_candidates(offsets_text):
+        offsets = []
+        for block in offsets_text.split(","):
+            block = block.strip()
+            if not block:
+                continue
+            if ":" in block:
+                start, end = block.split(":")
+                offsets.extend(range(int(start), int(end) + 1))
+            else:
+                offsets.append(int(block))
+        return offsets
+
     def _update_release_store(self, releases):
         self.release_store.clear()
         self.current_release = None
         for metadata in releases:
             self.release_store.append([
-                metadata.artist or "",
-                metadata.releaseTitle or metadata.title or "",
+                metadata.artist or "Unknown Artist",
+                metadata.releaseTitle or metadata.title or "Unknown Release",
                 _release_year(metadata),
-                metadata.releaseType or "",
-                _release_country(metadata),
+                metadata.releaseType or "Unknown",
+                _release_country(metadata) or "—",
                 metadata,
             ])
         if releases:
             self.release_view.get_selection().select_path(0)
+            self.release_view.set_cursor(Gtk.TreePath.new_first())
+            self.release_view.scroll_to_cell(Gtk.TreePath.new_first(), None, False, 0.0, 0.0)
         else:
             self._update_track_store(None)
             self._update_release_details(None)
@@ -621,11 +782,24 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         for index, track in enumerate(metadata.tracks, start=1):
             self.track_store.append([
                 str(index),
+                "Ready",
                 track.artist or "",
                 track.title or "",
                 _format_duration_ms(track.duration),
+                "",
+                "",
+                "",
             ])
 
+    def _set_track_field(self, track_number, field, value):
+        if track_number <= 0 or self.track_store is None or self.track_columns is None:
+            return False
+        row_index = track_number - 1
+        if row_index < 0 or row_index >= len(self.track_store):
+            return False
+        self.track_store[row_index][self.track_columns[field]] = value
+        return False
+
     def _update_release_details(self, metadata):
         if metadata is None:
             self.release_details.set_text("Select a release to inspect it.")
@@ -669,6 +843,178 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
             self.offset_spin.set_value(int(offset))
             logger.info("loaded configured read offset %d for %s", offset, device)
 
+    def _analyze_drive_worker(self, device):
+        try:
+            self.drive_cancel_requested = False
+            GLib.idle_add(self._log_action, "Drive analysis requested for %s", device)
+            GLib.idle_add(self._set_running_state, True, "Analyzing drive")
+            GLib.idle_add(self.progress_label.set_text, "Analyzing drive cache behaviour")
+
+            runner = CancellableSyncRunner()
+            self.drive_runner = runner
+            analyze_task = cdparanoia.AnalyzeTask(device)
+            runner.run(analyze_task)
+            if self.drive_cancel_requested:
+                raise RuntimeError("Drive analysis cancelled")
+            if analyze_task.defeatsCache is None:
+                raise RuntimeError("Cannot analyze the drive; insert an audio CD and retry.")
+
+            info = drive.getDeviceInfo(device)
+            if info:
+                config.Config().setDefeatsCache(info[0], info[1], info[2], analyze_task.defeatsCache)
+
+            def apply_results():
+                self._log_action(
+                    "Drive cache analysis result: cdparanoia %s defeat the audio cache",
+                    "can" if analyze_task.defeatsCache else "cannot",
+                )
+                self._update_drive_info(device)
+                self._set_running_state(False, "Drive analyzed")
+                self.progress_label.set_text("Drive analysis complete")
+                return False
+
+            GLib.idle_add(apply_results)
+        except Exception as exc:
+            def apply_error():
+                if self.drive_cancel_requested:
+                    self._log_action("Drive analysis cancelled", level=logging.WARNING)
+                    self._set_running_state(False, "Cancelled")
+                    self.progress_label.set_text("Drive analysis cancelled")
+                else:
+                    self._log_action("%s", exc, level=logging.ERROR)
+                    self._set_running_state(False, "Drive analysis failed")
+                    self.progress_label.set_text("Drive analysis failed")
+                return False
+
+            GLib.idle_add(apply_error)
+        finally:
+            self.drive_runner = None
+
+    def _find_offset_worker(self, device):
+        try:
+            self.drive_cancel_requested = False
+            GLib.idle_add(self._log_action, "Offset detection requested for %s", device)
+            GLib.idle_add(self._set_running_state, True, "Finding offset")
+            GLib.idle_add(self.progress_label.set_text, "Finding drive read offset")
+
+            runner = CancellableSyncRunner()
+            self.drive_runner = runner
+
+            utils.load_device(device)
+            utils.unmount_device(device)
+            toc_task = cdrdao.ReadTOCTask(device)
+            runner.run(toc_task)
+            table = toc_task.toc.table
+            if len(table.tracks) < 3:
+                raise RuntimeError("Offset detection needs a CD with at least 3 tracks.")
+
+            responses = accurip.get_db_entry(table.accuraterip_path())
+            offsets = self._parse_offset_candidates(offset_command.OFFSETS)
+
+            def match(archecksums, track_number):
+                for index, response in enumerate(responses):
+                    for checksum in archecksums:
+                        if checksum == response.checksums[track_number - 1]:
+                            return checksum, index
+                return None, None
+
+            def rip_arcs(track_number, offset_value):
+                fd, path = tempfile.mkstemp(
+                    suffix=".track%02d.offset%d.whipper.wav" % (track_number, offset_value)
+                )
+                os.close(fd)
+                try:
+                    read_task = cdparanoia.ReadTrackTask(
+                        path,
+                        table,
+                        table.getTrackStart(track_number),
+                        table.getTrackEnd(track_number),
+                        overread=False,
+                        offset=offset_value,
+                        device=device,
+                    )
+                    read_task.description = "Ripping track %d with read offset %d" % (
+                        track_number,
+                        offset_value,
+                    )
+                    runner.run(read_task)
+                    v1, v2 = arc.accuraterip_checksum(path, track_number, len(table.tracks))
+                    return "%08x" % v1, "%08x" % v2
+                finally:
+                    if os.path.exists(path):
+                        os.unlink(path)
+
+            found_offset = None
+            for offset_value in offsets:
+                if self.drive_cancel_requested:
+                    raise RuntimeError("Offset detection cancelled")
+                GLib.idle_add(self._log_action, "Trying read offset %d", offset_value)
+                try:
+                    checksums = rip_arcs(1, offset_value)
+                except Exception as exc:
+                    GLib.idle_add(self._log_action, "Cannot rip with offset %d: %s", offset_value, exc, level=logging.WARNING)
+                    continue
+                checksum, response_index = match(checksums, 1)
+                if not checksum:
+                    continue
+
+                GLib.idle_add(self._log_action, "Potential offset %d matched response %d; confirming", offset_value, response_index)
+                matched_tracks = 1
+                for track_number in range(2, len(table.tracks)):
+                    if self.drive_cancel_requested:
+                        raise RuntimeError("Offset detection cancelled")
+                    try:
+                        checksums = rip_arcs(track_number, offset_value)
+                    except Exception as exc:
+                        GLib.idle_add(self._log_action, "Track %d failed for offset %d: %s", track_number, offset_value, exc, level=logging.WARNING)
+                        continue
+                    checksum, _ = match(checksums, track_number)
+                    if checksum:
+                        matched_tracks += 1
+                if matched_tracks == len(table.tracks) - 1:
+                    found_offset = offset_value
+                    break
+
+            if found_offset is None:
+                raise RuntimeError("No matching offset found. Try another AccurateRip-enabled disc.")
+
+            info = drive.getDeviceInfo(device)
+            if info:
+                config.Config().setReadOffset(info[0], info[1], info[2], found_offset)
+
+            def apply_results():
+                self.offset_spin.set_value(found_offset)
+                self._log_action("Read offset of device is %d", found_offset)
+                self._update_drive_info(device)
+                self._set_running_state(False, "Offset found")
+                self.progress_label.set_text("Drive offset detection complete")
+                return False
+
+            GLib.idle_add(apply_results)
+        except accurip.EntryNotFound:
+            def apply_not_found():
+                self._log_action("AccurateRip entry not found; try another disc for offset detection", level=logging.WARNING)
+                self._set_running_state(False, "Offset unavailable")
+                self.progress_label.set_text("No AccurateRip entry for this disc")
+                return False
+
+            GLib.idle_add(apply_not_found)
+        except Exception as exc:
+            def apply_error():
+                if self.drive_cancel_requested:
+                    self._log_action("Offset detection cancelled", level=logging.WARNING)
+                    self._set_running_state(False, "Cancelled")
+                    self.progress_label.set_text("Offset detection cancelled")
+                else:
+                    self._log_action("%s", exc, level=logging.ERROR)
+                    self._set_running_state(False, "Offset detection failed")
+                    self.progress_label.set_text("Offset detection failed")
+                return False
+
+            GLib.idle_add(apply_error)
+        finally:
+            self.drive_runner = None
+
     def _read_disc_worker(self, device, country):
         try:
             self.scan_cancel_requested = False
@@ -721,7 +1067,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                     "tracks": track_count,
                     "releases": releases,
                 }
-                self._set_label("device", device)
+                self._update_drive_info(device)
                 self._set_label("disc_status", "Ready")
                 self._set_label("cddb", cddb)
                 self._set_label("mbid", mbid)
@@ -746,7 +1092,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                 self.release_store.clear()
                 self.track_store.clear()
                 self._update_release_details(None)
-                self._set_label("device", device)
+                self._update_drive_info(device)
                 if self.scan_cancel_requested:
                     self._set_label("disc_status", "Cancelled")
                     self._log_action("Disc scan cancelled", level=logging.WARNING)
@@ -836,6 +1182,14 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self.track_bar.set_fraction(value)
         self.track_bar.set_text(description)
         self.progress_label.set_text("%s: %s" % (item_label, description))
+        if item_label.startswith("Track "):
+            try:
+                track_number = int(item_label.split()[1])
+            except (IndexError, ValueError):
+                track_number = None
+            if track_number is not None:
+                percent = int(value * 100)
+                self._set_track_field(track_number, "status", "%s %d%%" % (description, percent))
         return False
 
     def _mark_track_finished(self, item_label, item_index, item_total, skipped=False):
@@ -846,6 +1200,13 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self.track_bar.set_fraction(1.0)
         self.track_bar.set_text("%s %s" % (item_label, "skipped" if skipped else "done"))
         self.progress_label.set_text("%s %s" % (item_label, "failed" if skipped else "verified"))
+        if item_label.startswith("Track "):
+            try:
+                track_number = int(item_label.split()[1])
+            except (IndexError, ValueError):
+                track_number = None
+            if track_number is not None:
+                self._set_track_field(track_number, "status", "Skipped" if skipped else "Verified")
         return False
 
     def _finish_rip(self, returncode, status="Done"):
@@ -891,6 +1252,8 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
 
         if os.path.exists(path):
             GLib.idle_add(self._append_log, "%s already exists, verifying\n" % item_label)
+            if track_number > 0:
+                GLib.idle_add(self._set_track_field, track_number, "status", "Verifying existing")
             if not program.verifyTrack(runner, track_result):
                 GLib.idle_add(self._append_log, "%s verification failed, reripping\n" % item_label)
                 os.unlink(path)
@@ -904,6 +1267,13 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                     raise RipCancelledError("Rip cancelled")
                 extra = "" if tries == 1 else " (try %d)" % tries
                 GLib.idle_add(self._append_log, "%s%s: %s\n" % (item_label, extra, os.path.basename(path)))
+                if track_number > 0:
+                    GLib.idle_add(
+                        self._set_track_field,
+                        track_number,
+                        "status",
+                        "Test & Copy%s" % extra,
+                    )
 
                 tag_list = program.getTagList(track_number, mbdiscid)
                 if track_number > 0 and itable.tracks[track_number - 1].isrc is not None:
@@ -940,6 +1310,19 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                     track_result.copyduration += rip_task.copyduration
                     if track_result.filename != rip_task.path:
                         track_result.filename = rip_task.path
+                    if track_number > 0:
+                        GLib.idle_add(
+                            self._set_track_field,
+                            track_number,
+                            "test_crc",
+                            "%08X" % track_result.testcrc if track_result.testcrc is not None else "",
+                        )
+                        GLib.idle_add(
+                            self._set_track_field,
+                            track_number,
+                            "copy_crc",
+                            "%08X" % track_result.copycrc if track_result.copycrc is not None else "",
+                        )
                     break
                 except Exception as exc:
                     if self.rip_cancel_requested:
@@ -953,6 +1336,8 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                 if settings["keep_going"]:
                     track_result.skipped = True
                     skipped_tracks.append(track_result)
+                    if track_number > 0:
+                        GLib.idle_add(self._set_track_field, track_number, "accuraterip", "Skipped")
                     GLib.idle_add(self._mark_track_finished, item_label, item_index, item_total, True)
                     return
                 raise RuntimeError("%s can't be ripped" % item_label)
@@ -962,6 +1347,8 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                 return
 
             if track_result.testcrc != track_result.copycrc:
+                if track_number > 0:
+                    GLib.idle_add(self._set_track_field, track_number, "accuraterip", "CRC mismatch")
                 raise RuntimeError("CRCs did not match for %s" % item_label)
 
         if track_number == 0:
@@ -985,6 +1372,7 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
                 program.result.table.getTrackLength(track_number),
                 track_number,
             )
+            GLib.idle_add(self._set_track_field, track_number, "accuraterip", "Pending AR")
 
         GLib.idle_add(self._mark_track_finished, item_label, item_index, item_total, False)
 
@@ -1239,7 +1627,34 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
         self._save_gui_settings()
         device = self._selected_device()
         if device:
+            self._update_drive_info(device)
             self._log_action("Selected device %s", device)
+        else:
+            self._update_drive_info(None)
+
+    def _on_analyze_drive_clicked(self, _button):
+        device = self._selected_device()
+        if not device:
+            self._log_action("Drive analysis requested without an active device", level=logging.WARNING)
+            return
+        self.worker = threading.Thread(
+            target=self._analyze_drive_worker,
+            args=(device,),
+            daemon=True,
+        )
+        self.worker.start()
+
+    def _on_find_offset_clicked(self, _button):
+        device = self._selected_device()
+        if not device:
+            self._log_action("Offset detection requested without an active device", level=logging.WARNING)
+            return
+        self.worker = threading.Thread(
+            target=self._find_offset_worker,
+            args=(device,),
+            daemon=True,
+        )
+        self.worker.start()
 
     def _on_read_clicked(self, _button):
         device = self._selected_device()
@@ -1295,6 +1710,10 @@ class WhipperGui(Gtk.Application if Gtk is not None else object):
             self.rip_cancel_requested = True
             self._log_action("Stopping rip", level=logging.WARNING)
             self.rip_runner.cancel()
+        elif self.drive_runner is not None:
+            self.drive_cancel_requested = True
+            self._log_action("Stopping drive operation", level=logging.WARNING)
+            self.drive_runner.cancel()
 
 
 class GuiLogHandler(logging.Handler):

whipper/test/test_gui.py

@@ -169,10 +169,18 @@ class FakeSelection:
 class FakeReleaseView:
     def __init__(self, store):
         self.selection = FakeSelection(store)
+        self.cursor = None
+        self.scrolled_path = None
 
     def get_selection(self):
         return self.selection
 
+    def set_cursor(self, path):
+        self.cursor = path
+
+    def scroll_to_cell(self, path, *_args):
+        self.scrolled_path = path
+
 
 class FakeRunner:
     def __init__(self):
@@ -269,6 +277,8 @@ def _make_ui_app(tmp_path):
     app.disc_template_entry = FakeEntry("%d")
     app.read_button = FakeButton()
     app.refresh_button = FakeButton()
+    app.analyze_button = FakeButton()
+    app.find_offset_button = FakeButton()
     app.rip_button = FakeButton()
     app.stop_button = FakeButton()
     app.status_label = FakeLabel()
@@ -277,10 +287,21 @@ def _make_ui_app(tmp_path):
     app.track_bar = FakeProgressBar()
     app.release_store = FakeListStore()
     app.track_store = FakeListStore()
+    app.track_columns = {
+        "number": 0,
+        "status": 1,
+        "artist": 2,
+        "title": 3,
+        "length": 4,
+        "test_crc": 5,
+        "copy_crc": 6,
+        "accuraterip": 7,
+    }
     app.release_view = FakeReleaseView(app.release_store)
     app.release_details = FakeLabel()
     app.info_labels = {key: FakeLabel() for key in [
-        "device", "disc_status", "cddb", "mbid", "duration", "tracks"
+        "device", "vendor", "model", "release", "read_offset", "cache_defeat",
+        "disc_status", "cddb", "mbid", "duration", "tracks"
     ]}
     app.scan_runner = None
     app.rip_runner = None
@@ -303,8 +324,10 @@ def _make_ui_app(tmp_path):
         "_can_rip",
         "_set_label",
         "_set_running_state",
+        "_update_drive_info",
         "_update_release_store",
         "_update_track_store",
+        "_set_track_field",
         "_update_release_details",
         "_update_rip_task_progress",
         "_finish_rip",
@@ -312,6 +335,8 @@ def _make_ui_app(tmp_path):
         "_pulse_progress",
         "_resolve_release_metadata",
         "_on_release_selected",
+        "_on_analyze_drive_clicked",
+        "_on_find_offset_clicked",
         "_on_stop_clicked",
     )
     app._remove_gui_log_handler = gui.WhipperGui._remove_gui_log_handler
@@ -390,13 +415,72 @@ def test_release_selection_and_progress_updates(monkeypatch, tmp_path):
     gui.WhipperGui._finish_rip(app, 0, "Done")
 
     assert app.current_release is metadata
-    assert app.track_store[0][1] == "Track Artist"
+    assert app.track_store[0][2] == "Track Artist"
+    assert app.track_store[0][1].startswith("Encoding")
     assert app.release_details.get_text().startswith("Artist: Artist")
     assert app.overall_bar.fraction == 1.0
     assert app.track_bar.fraction == 1.0
     assert app.progress_label.get_text() == "Rip complete"
 
 
+def test_update_release_store_uses_visible_fallbacks(tmp_path):
+    app = _make_ui_app(tmp_path)
+    metadata = SimpleNamespace(
+        artist=None,
+        releaseTitle=None,
+        title=None,
+        release=None,
+        releaseType=None,
+        countries=[],
+        duration=1000,
+        tracks=[],
+        discNumber=1,
+        discTotal=1,
+        mbid="mbid-empty",
+        url="https://example.invalid/mbid-empty",
+        barcode=None,
+        catalogNumbers=[],
+    )
+
+    gui.WhipperGui._update_release_store(app, [metadata])
+
+    assert app.release_store[0][0] == "Unknown Artist"
+    assert app.release_store[0][1] == "Unknown Release"
+    assert app.release_store[0][3] == "Unknown"
+    assert app.release_store[0][4] == "—"
+    assert app.release_view.cursor is not None
+    assert app.release_view.scrolled_path is not None
+
+
+def test_update_drive_info_reads_config(monkeypatch, tmp_path):
+    app = _make_ui_app(tmp_path)
+
+    class FakeConfig:
+        def getReadOffset(self, vendor, model, release):
+            assert (vendor, model, release) == ("Vendor", "Model", "1.0")
+            return 667
+
+        def getDefeatsCache(self, vendor, model, release):
+            assert (vendor, model, release) == ("Vendor", "Model", "1.0")
+            return True
+
+    monkeypatch.setattr(gui.drive, "getDeviceInfo", lambda device: ("Vendor", "Model", "1.0"))
+    monkeypatch.setattr(gui.config, "Config", lambda: FakeConfig())
+
+    gui.WhipperGui._update_drive_info(app, "/dev/cdrom")
+
+    assert app.info_labels["device"].get_text() == "/dev/cdrom"
+    assert app.info_labels["vendor"].get_text() == "Vendor"
+    assert app.info_labels["model"].get_text() == "Model"
+    assert app.info_labels["release"].get_text() == "1.0"
+    assert app.info_labels["read_offset"].get_text() == "667"
+    assert app.info_labels["cache_defeat"].get_text() == "Yes"
+
+
+def test_parse_offset_candidates_supports_ranges(tmp_path):
+    assert gui.WhipperGui._parse_offset_candidates("-1, 0, 2:4") == [-1, 0, 2, 3, 4]
+
+
 def test_main_reports_missing_runtime(monkeypatch, capsys):
     monkeypatch.setattr(gui, "_GUI_IMPORT_ERROR", ImportError("missing"))
     monkeypatch.setattr(gui, "gi", None)