Reset preview button if preview track ends

Fixes #178

app/config.py

@@ -79,7 +79,6 @@ class Config(object):
     SCROLL_TOP_MARGIN = 3
     TEXT_NO_TRACK_NO_NOTE = "[Section header]"
     TOD_TIME_FORMAT = "%H:%M:%S"
-    TIMER_MS = 10
     TRACK_TIME_FORMAT = "%H:%M:%S"
     VOLUME_VLC_DEFAULT = 75
     VOLUME_VLC_DROP3db = 65

app/musicmuster.py

@@ -59,7 +59,7 @@ from dbconfig import (
     scoped_session,
 )
 import helpers
-import icons_rc
+import icons_rc  # noqa F401
 import music
 from models import Base, Carts, Playdates, PlaylistRows, Playlists, Settings, Tracks
 from config import Config
@@ -319,8 +319,9 @@ class Window(QMainWindow, Ui_MainWindow):
         super().__init__(*args, **kwargs)
         self.setupUi(self)
 
-        self.timer: QTimer = QTimer()
-        self.clock_counter: int = 0
+        self.timer10: QTimer = QTimer()
+        self.timer500: QTimer = QTimer()
+        self.timer1000: QTimer = QTimer()
 
         self.music: music.Music = music.Music()
         self.playing: bool = False
@@ -360,7 +361,9 @@ class Window(QMainWindow, Ui_MainWindow):
             self.carts_init()
         self.enable_play_next_controls()
         self.clock_counter = 0
-        self.timer.start(Config.TIMER_MS)
+        self.timer10.start(10)
+        self.timer500.start(500)
+        self.timer1000.start(1000)
         self.connect_signals_slots()
 
     def about(self) -> None:
@@ -671,7 +674,9 @@ class Window(QMainWindow, Ui_MainWindow):
         self.tabBar.tabMoved.connect(self.move_tab)
         self.txtSearch.returnPressed.connect(self.search_playlist_return)
 
-        self.timer.timeout.connect(self.tick)
+        self.timer10.timeout.connect(self.tick_10ms)
+        self.timer500.timeout.connect(self.tick_500ms)
+        self.timer1000.timeout.connect(self.tick_1000ms)
 
     def create_playlist(
         self, session: scoped_session, playlist_name: Optional[str] = None
@@ -812,8 +817,8 @@ class Window(QMainWindow, Ui_MainWindow):
          - Enable controls
         """
 
-        # Set flag to say we're not playing a track so that tick()
-        # doesn't see player=None and kick off end-of-track actions
+        # Set flag to say we're not playing a track so that timer ticks
+        # don't see player=None and kick off end-of-track actions
         self.playing = False
 
         # Tell playlist_tab track has finished
@@ -831,8 +836,7 @@ class Window(QMainWindow, Ui_MainWindow):
         # Reset clocks
         self.frame_fade.setStyleSheet("")
         self.frame_silent.setStyleSheet("")
-        self.label_elapsed_timer.setText("00:00")
-        self.label_end_timer.setText("00:00")
+        self.label_elapsed_timer.setText("00:00 / 00:00")
         self.label_fade_timer.setText("00:00")
         self.label_silent_timer.setText("00:00")
 
@@ -1395,6 +1399,12 @@ class Window(QMainWindow, Ui_MainWindow):
         )
         self.play_next(self.previous_track_position)
 
+        # Adjust track info so that clocks and graph are correct.
+        # Easiest way is to fake the start time.
+        if self.current_track.start_time and self.current_track.duration:
+            elapsed_ms = self.current_track.duration * self.previous_track_position
+            self.current_track.start_time -= timedelta(milliseconds=elapsed_ms)
+
         # If a track was playing when we were called, get details to
         # set it as the next track
         if playing_track:
@@ -1668,24 +1678,6 @@ class Window(QMainWindow, Ui_MainWindow):
                 self.next_track.playlist_tab, QColor(Config.COLOUR_NEXT_TAB)
             )
 
-    def tick(self) -> None:
-        """
-        Called every Config.TIMER_MS milliseconds. Call periodic functions
-        as required.
-        """
-
-        # Get current number of milliseconds
-        self.clock_counter += Config.TIMER_MS
-        self.clock_counter %= 1000
-
-        # Call periodic functions
-        if self.clock_counter % 10 == 0:
-            self.tick_10ms()
-        if self.clock_counter % 500 == 0:
-            self.tick_500ms()
-        if self.clock_counter == 0:
-            self.tick_1000ms()
-
     def tick_10ms(self) -> None:
         """
         Called every 10ms
@@ -1716,6 +1708,9 @@ class Window(QMainWindow, Ui_MainWindow):
         Called every 1000ms
         """
 
+        # Ensure preview button is reset if preview finishes playing
+        self.btnPreview.setChecked(mixer.music.get_busy())
+
         # Only update play clocks once a second so that their updates
         # are synchronised (otherwise it looks odd)
 
@@ -1739,7 +1734,6 @@ class Window(QMainWindow, Ui_MainWindow):
             playtime = self.get_playtime()
             time_to_fade = self.current_track.fade_at - playtime
             time_to_silence = self.current_track.silence_at - playtime
-            time_to_end = self.current_track.duration - playtime
 
             # Elapsed time
             self.label_elapsed_timer.setText(
@@ -1754,15 +1748,15 @@ class Window(QMainWindow, Ui_MainWindow):
             # If silent in the next 5 seconds, put warning colour on
             # time to silence box and enable play controls
             if time_to_silence <= 5500:
-                self.frame_silent.setStyleSheet(
-                    f"background: {Config.COLOUR_ENDING_TIMER}"
-                )
+                css_silence = f"background: {Config.COLOUR_ENDING_TIMER}"
+                if self.frame_silent.styleSheet() != css_silence:
+                    self.frame_silent.setStyleSheet(css_silence)
                 self.enable_play_next_controls()
             # Set warning colour on time to silence box when fade starts
             elif time_to_fade <= 500:
-                self.frame_silent.setStyleSheet(
-                    f"background: {Config.COLOUR_WARNING_TIMER}"
-                )
+                css_fade = f"background: {Config.COLOUR_WARNING_TIMER}"
+                if self.frame_silent.styleSheet() != css_fade:
+                    self.frame_silent.setStyleSheet(css_fade)
             # Five seconds before fade starts, set warning colour on
             # time to silence box and enable play controls
             elif time_to_fade <= 5500: