#!/usr/bin/env python import webbrowser import os import psutil import sys import urllib.parse from datetime import datetime, timedelta from log import DEBUG, EXCEPTION from PyQt5.QtCore import QProcess, Qt, QTimer, QUrl from PyQt5.QtGui import QColor from PyQt5.QtWebEngineWidgets import QWebEngineView as QWebView from PyQt5.QtWidgets import ( QApplication, QDialog, QFileDialog, QInputDialog, QLabel, QListWidgetItem, QMainWindow, ) import helpers import music from config import Config from models import (db_init, Playdates, Playlists, PlaylistTracks, Session, Settings, Tracks) from playlists import PlaylistTab from utilities import create_track_from_file from ui.dlg_search_database_ui import Ui_Dialog from ui.dlg_SelectPlaylist_ui import Ui_dlgSelectPlaylist from ui.main_window_ui import Ui_MainWindow class Window(QMainWindow, Ui_MainWindow): def __init__(self, parent=None): super().__init__(parent) self.setupUi(self) self.timer = QTimer() self.even_tick = True self.playing = False self.connect_signals_slots() self.disable_play_next_controls() self.music = music.Music() self.current_track = None self.current_track_playlist_tab = None self.info_tabs = {} self.next_track = None self.next_track_playlist_tab = None self.previous_track = None self.previous_track_position = None self.spnVolume.setValue(Config.VOLUME_VLC_DEFAULT) self.set_main_window_size() self.lblSumPlaytime = QLabel("") self.statusbar.addPermanentWidget(self.lblSumPlaytime) self.visible_playlist_tab = self.tabPlaylist.currentWidget self.load_last_playlists() self.enable_play_next_controls() self.check_audacity() self.timer.start(Config.TIMER_MS) def add_file(self): # TODO: V2 enahancement to import tracks dlg = QFileDialog() dlg.setFileMode(QFileDialog.ExistingFiles) dlg.setViewMode(QFileDialog.Detail) dlg.setDirectory(Config.ROOT) dlg.setNameFilter("Music files (*.flac *.mp3)") if dlg.exec_(): with Session() as session: for fname in dlg.selectedFiles(): track = create_track_from_file(session, fname) # Add to playlist on screen # If we don't specify "repaint=False", playlist will # also be saved to database self.visible_playlist_tab().insert_track(session, track) def set_main_window_size(self): """Set size of window from database""" with Session() as session: record = Settings.get_int(session, "mainwindow_x") x = record.f_int or 1 record = Settings.get_int(session, "mainwindow_y") y = record.f_int or 1 record = Settings.get_int(session, "mainwindow_width") width = record.f_int or 1599 record = Settings.get_int(session, "mainwindow_height") height = record.f_int or 981 self.setGeometry(x, y, width, height) @staticmethod def check_audacity(): """Offer to run Audacity if not running""" if not Config.CHECK_AUDACITY_AT_STARTUP: return if "audacity" in [i.name() for i in psutil.process_iter()]: return if helpers.ask_yes_no("Audacity not running", "Start Audacity?"): QProcess.startDetached(Config.AUDACITY_COMMAND, []) def clear_selection(self): if self.visible_playlist_tab(): self.visible_playlist_tab().clearSelection() def closeEvent(self, event): """Don't allow window to close when a track is playing""" if self.music.playing(): DEBUG("closeEvent() ignored as music is playing") event.ignore() helpers.show_warning( "Track playing", "Can't close application while track is playing") else: DEBUG("closeEvent() accepted") with Session() as session: record = Settings.get_int(session, "mainwindow_height") if record.f_int != self.height(): record.update(session, {'f_int': self.height()}) record = Settings.get_int(session, "mainwindow_width") if record.f_int != self.width(): record.update(session, {'f_int': self.width()}) record = Settings.get_int(session, "mainwindow_x") if record.f_int != self.x(): record.update(session, {'f_int': self.x()}) record = Settings.get_int(session, "mainwindow_y") if record.f_int != self.y(): record.update(session, {'f_int': self.y()}) # Find a playlist tab (as opposed to an info tab) and # save column widths if self.current_track_playlist_tab: self.current_track_playlist_tab.close(session) elif self.next_track_playlist_tab: self.next_track_playlist_tab.close(session) event.accept() def connect_signals_slots(self): self.actionAdd_file.triggered.connect(self.add_file) self.actionAdd_note.triggered.connect(self.create_note) self.action_Clear_selection.triggered.connect(self.clear_selection) self.actionClosePlaylist.triggered.connect(self.close_playlist_tab) self.actionExport_playlist.triggered.connect(self.export_playlist_tab) self.actionFade.triggered.connect(self.fade) self.actionMoveSelected.triggered.connect(self.move_selected) self.actionNewPlaylist.triggered.connect(self.create_playlist) self.actionOpenPlaylist.triggered.connect(self.open_playlist) self.actionPlay_next.triggered.connect(self.play_next) self.actionSearch_database.triggered.connect(self.search_database) self.actionSelect_next_track.triggered.connect(self.select_next_row) self.actionSelect_played_tracks.triggered.connect(self.select_played) self.actionSelect_previous_track.triggered.connect( self.select_previous_row) self.actionSelect_unplayed_tracks.triggered.connect( self.select_unplayed) self.actionSetNext.triggered.connect( lambda: self.tabPlaylist.currentWidget().set_selected_as_next()) self.actionSkip_next.triggered.connect(self.play_next) self.actionStop.triggered.connect(self.stop) self.btnAddFile.clicked.connect(self.add_file) self.btnAddNote.clicked.connect(self.create_note) self.btnDatabase.clicked.connect(self.search_database) self.btnFade.clicked.connect(self.fade) self.btnPlay.clicked.connect(self.play_next) self.btnSetNext.clicked.connect(self.this_is_the_next_track) self.btnSongInfo.clicked.connect(self.song_info_search) self.btnStop.clicked.connect(self.stop) self.spnVolume.valueChanged.connect(self.change_volume) self.tabPlaylist.tabCloseRequested.connect(self.close_tab) self.timer.timeout.connect(self.tick) def create_playlist(self): """Create new playlist""" dlg = QInputDialog(self) dlg.setInputMode(QInputDialog.TextInput) dlg.setLabelText("Playlist name:") dlg.resize(500, 100) ok = dlg.exec() if ok: with Session() as session: playlist = Playlists(session, dlg.textValue()) self.create_playlist_tab(session, playlist) def change_volume(self, volume): """Change player maximum volume""" DEBUG(f"change_volume({volume})") self.music.set_volume(volume) def close_playlist_tab(self): self.close_tab(self.tabPlaylist.currentIndex()) def close_tab(self, index): if hasattr(self.tabPlaylist.widget(index), 'playlist'): if self.tabPlaylist.widget(index) == ( self.current_track_playlist_tab): self.statusbar.showMessage( "Can't close current track playlist", 5000) return if self.tabPlaylist.widget(index) == self.next_track_playlist_tab: self.statusbar.showMessage( "Can't close next track playlist", 5000) return # It's OK to close this playlist so remove from open playlist list with Session() as session: self.tabPlaylist.widget(index).playlist.close(session) # Close regardless of tab type self.tabPlaylist.removeTab(index) def create_note(self): """Call playlist to create note""" try: self.visible_playlist_tab().create_note() except AttributeError: # Just return if there's no visible playlist tab return def disable_play_next_controls(self): DEBUG("disable_play_next_controls()") self.actionPlay_next.setEnabled(False) self.statusbar.showMessage("Play controls: Disabled", 0) def enable_play_next_controls(self): DEBUG("enable_play_next_controls()") self.actionPlay_next.setEnabled(True) self.statusbar.showMessage("Play controls: Enabled", 0) def end_of_track_actions(self): """Clean up after track played""" # Set self.playing to False so that tick() doesn't see # player=None and kick off end-of-track actions self.playing = False # Clean up metadata if self.current_track: self.previous_track = self.current_track self.current_track = None if self.current_track_playlist_tab: self.current_track_playlist_tab.play_stopped() self.current_track_playlist_tab = None # Clean up display self.frame_fade.setStyleSheet("") self.label_silent_timer.setText("00:00") self.frame_silent.setStyleSheet("") self.label_end_timer.setText("00:00") self.update_headers() # Enable controls self.enable_play_next_controls() def export_playlist_tab(self): """Export the current playlist to an m3u file""" if not self.visible_playlist_tab(): return # Get output filename pathspec = QFileDialog.getSaveFileName( self, 'Save Playlist', directory=f"{self.visible_playlist_tab().name}.m3u", filter="M3U files (*.m3u);;All files (*.*)" ) if not pathspec: return path = pathspec[0] if not path.endswith(".m3u"): path += ".m3u" with open(path, "w") as f: # Required directive on first line f.write("#EXTM3U\n") for track in self.playlist.tracks: f.write( "#EXTINF:" f"{int(track.duration / 1000)}," f"{track.title} - " f"{track.artist}" "\n" f"{track.path}" "\n" ) def fade(self): """Fade currently playing track""" DEBUG("musicmuster:fade()", True) if not self.current_track: return self.previous_track_position = self.music.get_position() self.music.fade() self.end_of_track_actions() def insert_note(self): #TODO: V2 check "Add non-track row to playlist" dlg = QInputDialog(self) dlg.setInputMode(QInputDialog.TextInput) dlg.setLabelText("Note:") dlg.resize(500, 100) ok = dlg.exec() if ok: with Session() as session: note = self.create_note(session, dlg.textValue()) self.visible_playlist_tab()._insert_note(session, note) def load_last_playlists(self): """Load the playlists that we loaded at end of last session""" with Session() as session: for playlist in Playlists.get_open(session): self.create_playlist_tab(session, playlist) def create_playlist_tab(self, session, playlist): """ Take the passed playlist database object, create a playlist tab and add tab to display. """ playlist_tab = PlaylistTab(parent=self, session=session, playlist=playlist) idx = self.tabPlaylist.addTab(playlist_tab, playlist.name) self.tabPlaylist.setCurrentIndex(idx) def move_selected(self): """Move selected rows to another playlist""" with Session() as session: playlists = [p for p in Playlists.get_all(session) if p.id != self.visible_playlist_tab().id] dlg = SelectPlaylistDialog(self, playlists=playlists) dlg.exec() if not dlg.plid: return # If destination playlist is visible, we need to add the moved # tracks to it. If not, they will be automatically loaded when # the playlistis opened. destination_visible_playlist_tab = None for tab in range(self.tabPlaylist.count()): # Non-playlist tabs won't have a 'playlist' attribute if not hasattr(self.tabPlaylist.widget(tab), 'playlist'): continue if self.tabPlaylist.widget(tab).id == dlg.plid: destination_visible_playlist_tab = ( self.tabPlaylist.widget(tab)) break rows = [] for (row, track) in ( self.visible_playlist_tab().get_selected_rows_and_tracks() ): rows.append(row) if destination_visible_playlist_tab: # Insert with repaint=False to not update database destination_visible_playlist_tab.insert_track( session, track, repaint=False) # Update database for both source and destination playlists PlaylistTracks.move_rows( session, self.visible_playlist_tab().id, rows, dlg.plid) # Update destination playlist if visible if destination_visible_playlist_tab: destination_visible_playlist_tab.update_display() # Update source playlist self.visible_playlist_tab().remove_rows(rows) def open_info_tab(self, title_list): """ Ensure we have info tabs for each of the passed titles Called from update_headers """ for title in title_list: if title in self.info_tabs.keys(): # We already have a tab for this track continue if len(self.info_tabs) >= Config.MAX_INFO_TABS: # Find an unneeded info tab try: old_title = list( set(self.info_tabs.keys()) - set(title_list) )[0] except IndexError: DEBUG( f"ensure_info_tabs({title_list}): unable to add " f"{title=}" ) return # Assign redundant widget a new title widget = self.info_tabs[title] = self.info_tabs[old_title] idx = self.tabPlaylist.indexOf(widget) self.tabPlaylist.setTabText( idx, title[:Config.INFO_TAB_TITLE_LENGTH]) del self.info_tabs[old_title] else: # Create a new tab for this title widget = self.info_tabs[title] = QWebView() self.tabPlaylist.addTab( widget, title[:Config.INFO_TAB_TITLE_LENGTH]) txt = urllib.parse.quote_plus(title) url = Config.INFO_TAB_URL % txt widget.setUrl(QUrl(url)) def play_next(self): """ Play next track. If there is no next track set, return. If there's currently a track playing, fade it. Move next track to current track. Play (new) current. Tell playlist to update "current track" metadata. This will also trigger a call to Cue up next track in playlist if there is one. Tell database to record it as played Update metadata and headers, and repaint """ DEBUG( "musicmuster.play_next(), " f"next_track={self.next_track.title if self.next_track else None} " "current_track=" f"{self.current_track.title if self.current_track else None}", True ) # If there is no next track set, return. if not self.next_track: DEBUG("musicmuster.play_next(): no next track selected", True) return with Session() as session: # Stop current track, if any self.stop_playing() # Play next track self.current_track = self.next_track self.next_track = None self.current_track_playlist_tab = self.next_track_playlist_tab self.next_track_playlist_tab = None self.set_tab_colour(self.current_track_playlist_tab, QColor(Config.COLOUR_CURRENT_TAB)) self.music.play(self.current_track.path) # Tell playlist so it can update its display self.current_track_playlist_tab.play_started() # Tell database to record it as played Playdates(session, self.current_track) self.disable_play_next_controls() self.update_headers() # Set time clocks now = datetime.now() self.label_start_tod.setText(now.strftime("%H:%M:%S")) silence_at = self.current_track.silence_at silence_time = now + timedelta(milliseconds=silence_at) self.label_silent_tod.setText(silence_time.strftime("%H:%M:%S")) self.label_fade_length.setText(helpers.ms_to_mmss( silence_at - self.current_track.fade_at )) def search_database(self): with Session() as session: dlg = DbDialog(self, session) dlg.exec() def open_playlist(self): with Session() as session: playlists = Playlists.get_closed(session) dlg = SelectPlaylistDialog(self, playlists=playlists) dlg.exec() if dlg.plid: playlist = Playlists.get_by_id(session, dlg.plid) self.create_playlist_tab(session, playlist) def select_next_row(self): """Select next or first row in playlist""" self.visible_playlist_tab().select_next_row() def select_played(self): """Select all played tracks in playlist""" self.visible_playlist_tab().select_played_tracks() def select_previous_row(self): """Select previous or first row in playlist""" self.visible_playlist_tab().select_previous_row() def select_unplayed(self): """Select all unplayed tracks in playlist""" self.visible_playlist_tab().select_unplayed_tracks() def set_tab_colour(self, widget, colour): """ Find the tab containing the widget and set the text colour """ idx = self.tabPlaylist.indexOf(widget) self.tabPlaylist.tabBar().setTabTextColor(idx, colour) def song_info_search(self): """ Open browser tab for Wikipedia, searching for the first that exists of: - selected track - next track - current track """ title = self.visible_playlist_tab().get_selected_title() if not title: if self.next_track: title = self.next_track.title if not title: if self.current_track: title = self.current_track.title if title: # Wikipedia txt = urllib.parse.quote_plus(title) url = Config.INFO_TAB_URL % txt webbrowser.open(url, new=2) def stop(self): """Stop playing immediately""" DEBUG("musicmuster.stop()") self.stop_playing(fade=False) def stop_playing(self, fade=True): """Stop playing current track""" DEBUG(f"musicmuster.stop_playing({fade=})", True) # Set tab colour if self.current_track_playlist_tab == self.next_track_playlist_tab: self.set_tab_colour(self.current_track_playlist_tab, QColor(Config.COLOUR_NEXT_TAB)) else: self.set_tab_colour(self.current_track_playlist_tab, QColor(Config.COLOUR_NORMAL_TAB)) if not self.music.playing(): DEBUG("musicmuster.stop_playing(): not playing", True) self.end_of_track_actions() return self.previous_track_position = self.music.get_position() if fade: DEBUG("musicmuster.stop_playing(): fading music", True) self.music.fade() else: DEBUG("musicmuster.stop_playing(): stopping music", True) self.music.stop() self.end_of_track_actions() # Release player self.music.stop() self.update_headers() def this_is_the_next_track(self, playlist_tab, track): """ This is notification from a playlist tab that it holds the next track to be played. """ # The next track has been selected on the playlist_tab # playlist. However, there may already be a 'next track' # selected on another playlist that the user is overriding, # in which case we need to reset that playlist. if self.next_track_playlist_tab != playlist_tab: # We need to reset the ex-next-track playlist if self.next_track_playlist_tab: self.next_track_playlist_tab.clear_next() # Reset tab colour if it NOT the current playing tab if (self.next_track_playlist_tab != self.current_track_playlist_tab): self.set_tab_colour( self.next_track_playlist_tab, QColor(Config.COLOUR_NORMAL_TAB)) self.next_track_playlist_tab = playlist_tab # self.next_track_playlist_tab is now set to correct playlist # Set the colour of the next playlist tab if it isn't the # currently-playing tab if (self.next_track_playlist_tab != self.current_track_playlist_tab): self.set_tab_colour( self.next_track_playlist_tab, QColor(Config.COLOUR_NEXT_TAB)) self.next_track = track self.update_headers() def tick(self): """ Update screen The Time of Day clock is updated every tick (500ms). All other timers are updated every second. As the timers have a one-second resolution, updating every 500ms can result in some timers updating and then, 500ms later, other timers updating. That looks odd. """ now = datetime.now() self.lblTOD.setText(now.strftime("%H:%M:%S")) self.even_tick = not self.even_tick if not self.even_tick: return if self.music.player and self.music.playing(): self.playing = True playtime = self.music.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 if time_to_end < 500: self.label_elapsed_timer.setText( helpers.ms_to_mmss(self.current_track.duration) ) else: self.label_elapsed_timer.setText(helpers.ms_to_mmss(playtime)) # Time to fade self.label_fade_timer.setText(helpers.ms_to_mmss(time_to_fade)) # 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}" ) 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}" ) # Five seconds before fade starts, set warning colour on # time to silence box and enable play controls elif time_to_fade <= 5500: self.frame_fade.setStyleSheet( f"background: {Config.COLOUR_WARNING_TIMER}" ) self.enable_play_next_controls() else: self.frame_silent.setStyleSheet("") self.frame_fade.setStyleSheet("") self.label_silent_timer.setText( helpers.ms_to_mmss(time_to_silence) ) # Time to end self.label_end_timer.setText(helpers.ms_to_mmss(time_to_end)) else: if self.playing: self.stop_playing() def update_headers(self): """ Update last / current / next track headers. Ensure a Wikipedia tab for each title. """ titles = [] try: self.hdrPreviousTrack.setText( f"{self.previous_track.title} - {self.previous_track.artist}" ) titles.append(self.previous_track.title) except AttributeError: self.hdrPreviousTrack.setText("") try: self.hdrCurrentTrack.setText( f"{self.current_track.title} - {self.current_track.artist}" ) titles.append(self.current_track.title) except AttributeError: self.hdrCurrentTrack.setText("") try: self.hdrNextTrack.setText( f"{self.next_track.title} - {self.next_track.artist}" ) titles.append(self.next_track.title) except AttributeError: self.hdrNextTrack.setText("") self.open_info_tab(titles) class DbDialog(QDialog): """Select track from database""" def __init__(self, parent, session): super().__init__(parent) self.session = session self.ui = Ui_Dialog() self.ui.setupUi(self) self.ui.btnAdd.clicked.connect(self.add_selected) self.ui.btnAddClose.clicked.connect(self.add_selected_and_close) self.ui.btnClose.clicked.connect(self.close) self.ui.matchList.itemDoubleClicked.connect(self.double_click) self.ui.matchList.itemSelectionChanged.connect(self.selection_changed) self.ui.radioTitle.toggled.connect(self.title_artist_toggle) self.ui.searchString.textEdited.connect(self.chars_typed) record = Settings.get_int(self.session, "dbdialog_width") width = record.f_int or 800 record = Settings.get_int(self.session, "dbdialog_height") height = record.f_int or 600 self.resize(width, height) def __del__(self): record = Settings.get_int(self.session, "dbdialog_height") if record.f_int != self.height(): record.update(self.session, {'f_int': self.height()}) record = Settings.get_int(self.session, "dbdialog_width") if record.f_int != self.width(): record.update(self.session, {'f_int': self.width()}) def add_selected(self): if not self.ui.matchList.selectedItems(): return item = self.ui.matchList.currentItem() track = item.data(Qt.UserRole) self.add_track(track) def add_selected_and_close(self): self.add_selected() self.close() def title_artist_toggle(self): """ Handle switching between searching for artists and searching for titles """ # Logic is handled already in chars_typed(), so just call that. self.chars_typed(self.ui.searchString.text()) def chars_typed(self, s): if len(s) > 0: if self.ui.radioTitle.isChecked(): matches = Tracks.search_titles(self.session, s) else: matches = Tracks.search_artists(self.session, s) self.ui.matchList.clear() if matches: for track in matches: t = QListWidgetItem() t.setText( f"{track.title} - {track.artist} " f"[{helpers.ms_to_mmss(track.duration)}]" ) t.setData(Qt.UserRole, track) self.ui.matchList.addItem(t) def double_click(self, entry): track = entry.data(Qt.UserRole) self.add_track(track) # Select search text to make it easier for next search self.select_searchtext() def add_track(self, track): # Add to playlist on screen self.parent().visible_playlist_tab().insert_track( self.session, track) # Select search text to make it easier for next search self.select_searchtext() def select_searchtext(self): self.ui.searchString.selectAll() self.ui.searchString.setFocus() def selection_changed(self): if not self.ui.matchList.selectedItems(): return item = self.ui.matchList.currentItem() track = item.data(Qt.UserRole) self.ui.dbPath.setText(track.path) class SelectPlaylistDialog(QDialog): def __init__(self, parent=None, playlists=None): super().__init__(parent) if playlists is None: return self.ui = Ui_dlgSelectPlaylist() self.ui.setupUi(self) self.ui.lstPlaylists.itemDoubleClicked.connect(self.list_doubleclick) self.ui.buttonBox.accepted.connect(self.open) self.ui.buttonBox.rejected.connect(self.close) self.plid = None with Session() as session: record = Settings.get_int(session, "select_playlist_dialog_width") width = record.f_int or 800 record = Settings.get_int(session, "select_playlist_dialog_height") height = record.f_int or 600 self.resize(width, height) for (plid, plname) in [(a.id, a.name) for a in playlists]: p = QListWidgetItem() p.setText(plname) p.setData(Qt.UserRole, plid) self.ui.lstPlaylists.addItem(p) def __del__(self): with Session() as session: record = Settings.get_int(session, "select_playlist_dialog_height") if record.f_int != self.height(): record.update(session, {'f_int': self.height()}) record = Settings.get_int(session, "select_playlist_dialog_width") if record.f_int != self.width(): record.update(session, {'f_int': self.width()}) def list_doubleclick(self, entry): self.plid = entry.data(Qt.UserRole) self.accept() def open(self): if self.ui.lstPlaylists.selectedItems(): item = self.ui.lstPlaylists.currentItem() self.plid = item.data(Qt.UserRole) self.accept() def main(): try: app = QApplication(sys.argv) db_init() win = Window() win.show() sys.exit(app.exec()) except Exception: EXCEPTION("Unhandled Exception caught by musicmuster.main()") if __name__ == "__main__": main()