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import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from MainWindow import Ui_MainWindow
from solo_tool import SoloTool
from midi_controller_launchpad_mini import MidiController
POSITION_FACTOR = 100000
RATE_FACTOR = 10
UI_REFRESH_PERIOD_MS = 500
CHANGE_GUI = 0
CHANGE_INTERNAL = 1
class PlaylistModel(QAbstractListModel):
def __init__(self, soloTool, *args, **kwargs):
super(PlaylistModel, self).__init__(*args, **kwargs)
self.soloTool = soloTool
def data(self, index, role):
if role == Qt.DisplayRole:
from pathlib import Path
path = Path(self.soloTool.getSongs()[index.row()])
return path.name
def rowCount(self, index):
return len(self.soloTool.getSongs())
class ABListModel(QAbstractListModel):
def __init__(self, soloTool, *args, **kwargs):
super(ABListModel, self).__init__(*args, **kwargs)
self.soloTool = soloTool
def data(self, index, role):
if role == Qt.DisplayRole:
ab = self.soloTool.getStoredAbLimits()[index.row()]
return f"{ab[0]} - {ab[1]}"
def rowCount(self, index):
return len(self.soloTool.getStoredAbLimits())
class MainWindow(QMainWindow, Ui_MainWindow):
songChangeSignal = pyqtSignal(int)
abLimitsChangeSignal = pyqtSignal(int)
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
self.setupUi(self)
self.timer = QTimer(self)
self.timer.setInterval(UI_REFRESH_PERIOD_MS)
self.timer.timeout.connect(self.timerCallback)
self.soloTool = SoloTool()
self.midiController = MidiController(self.soloTool)
self.playlistModel = PlaylistModel(self.soloTool)
self.songListView.setModel(self.playlistModel)
self.songListView.selectionModel().selectionChanged.connect(self.playlistSelectionChanged)
self.songChangePending = None
self.songChangeSignal.connect(self.currentSongChanged)
self.soloTool.registerCurrentSongCallback(self.songChangeSignal.emit)
self.abListModel = ABListModel(self.soloTool)
self.abListView.setModel(self.abListModel)
self.abListView.selectionModel().selectionChanged.connect(self.abListSelectionChanged)
self.abLimitsChangePending = None
self.abLimitsChangeSignal.connect(self.currentAbLimitsChanged)
self.soloTool.registerCurrentAbLimitsCallback(self.abLimitsChangeSignal.emit)
self.songSlider.setMaximum(POSITION_FACTOR)
self.songSlider.sliderPressed.connect(self.songSliderPressed)
self.songSlider.sliderReleased.connect(self.songSliderReleased)
self.aSlider.setMaximum(POSITION_FACTOR)
self.aSlider.sliderReleased.connect(self.abSliderReleased)
self.bSlider.setMaximum(POSITION_FACTOR)
self.bSlider.sliderReleased.connect(self.abSliderReleased)
self.rateSlider.setRange(int(0.5 * RATE_FACTOR), int(1.2 * RATE_FACTOR))
self.rateSlider.setSingleStep(int(0.1 * RATE_FACTOR))
self.rateSlider.setValue(int(1.0 * RATE_FACTOR))
self.rateSlider.sliderReleased.connect(self.rateSliderReleased)
self.playButton.pressed.connect(self.soloTool.play)
self.pauseButton.pressed.connect(self.soloTool.pause)
self.storeAbButton.pressed.connect(self.storeAbLimits)
self.setAButton.pressed.connect(self.setA)
self.setBButton.pressed.connect(self.setB)
self.saveSessionButton.pressed.connect(self.saveSession)
self.loadSessionButton.pressed.connect(self.loadSession)
self.addSongButton.pressed.connect(self.addSong)
self.abRepeatCheckBox.clicked.connect(self.toggleAbRepeat)
self.initMidiButton.pressed.connect(self.initMidi)
self.timer.start()
if len(sys.argv) > 1:
self.loadSession(sys.argv[1])
self.show()
def timerCallback(self):
position = self.soloTool.getPlaybackPosition() * POSITION_FACTOR
self.songSlider.setValue(int(position))
self.soloTool.tick()
def addSong(self):
path, _ = QFileDialog.getOpenFileName(self, "Open file", "", "mp3 Audio (*.mp3);FLAC audio (*.flac);All files (*.*)")
if path:
self.soloTool.addSong(path)
self.playlistModel.layoutChanged.emit()
def storeAbLimits(self):
a = self.aSlider.value() / float(POSITION_FACTOR)
b = self.bSlider.value() / float(POSITION_FACTOR)
self.soloTool.storeAbLimits(a, b)
self.abListModel.layoutChanged.emit()
def setA(self):
position = self.songSlider.value()
self.aSlider.setValue(position)
self.abSliderReleased()
def setB(self):
position = self.songSlider.value()
self.bSlider.setValue(position)
self.abSliderReleased()
def toggleAbRepeat(self):
enable = self.abRepeatCheckBox.isChecked()
self.soloTool.setAbLimitEnable(enable)
def saveSession(self):
path, _ = QFileDialog.getSaveFileName(self, "Open file", "", "session file (*.json)")
if path:
self.soloTool.saveSession(path)
def loadSession(self, path=None):
if path is None:
path, _ = QFileDialog.getOpenFileName(self, "Open file", "", "session file (*.json)")
if path is not None:
self.soloTool.loadSession(path)
self.playlistModel.layoutChanged.emit()
self.abListModel.layoutChanged.emit()
def songSliderPressed(self):
self.timer.stop()
def songSliderReleased(self):
position = self.songSlider.value() / float(POSITION_FACTOR)
self.soloTool.setPlaybackPosition(position)
self.timer.start()
def clearListViewSelection(self, listView):
i = listView.selectionModel().currentIndex()
listView.selectionModel().select(i, QItemSelectionModel.Deselect)
def abSliderReleased(self):
a = self.aSlider.value() / float(POSITION_FACTOR)
b = self.bSlider.value() / float(POSITION_FACTOR)
self.soloTool.setAbLimits(a, b)
self.clearListViewSelection(self.abListView)
def rateSliderReleased(self):
rate = self.rateSlider.value() / float(RATE_FACTOR)
self.soloTool.setPlaybackRate(rate)
def playlistSelectionChanged(self, i):
if self.songChangePending == CHANGE_INTERNAL:
self.songChangePending = None
else:
assert self.songChangePending is None
self.songChangePending = CHANGE_GUI
index = i.indexes()[0].row()
self.soloTool.setSong(index)
self.clearListViewSelection(self.abListView)
self.abListModel.layoutChanged.emit()
def currentSongChanged(self, songIndex):
if self.songChangePending == CHANGE_GUI:
self.songChangePending = None
else:
assert self.songChangePending is None
self.songChangePending = CHANGE_INTERNAL
i = self.playlistModel.createIndex(songIndex, 0)
self.songListView.selectionModel().select(i, QItemSelectionModel.ClearAndSelect)
def abListSelectionChanged(self, i):
if self.abLimitsChangePending == CHANGE_INTERNAL:
print("Ack internal change")
self.abLimitsChangePending = None
else:
assert self.abLimitsChangePending is None
if i is not None and not i.isEmpty():
print("Processing GUI change")
self.abLimitsChangePending = CHANGE_GUI
index = i.indexes()[0].row()
ab = self.soloTool.getStoredAbLimits()[index]
self.soloTool.loadAbLimits(index)
self.aSlider.setValue(int(ab[0] * POSITION_FACTOR))
self.bSlider.setValue(int(ab[1] * POSITION_FACTOR))
def currentAbLimitsChanged(self, abIndex):
if self.abLimitsChangePending == CHANGE_GUI:
print("Ack GUI change")
self.abLimitsChangePending = None
else:
assert self.abLimitsChangePending is None
print("Processing internal change")
self.abLimitsChangePending = CHANGE_INTERNAL
i = self.abListModel.createIndex(abIndex, 0)
self.abListView.selectionModel().select(i, QItemSelectionModel.ClearAndSelect)
ab = self.soloTool.getStoredAbLimits()[abIndex]
self.aSlider.setValue(int(ab[0] * POSITION_FACTOR))
self.bSlider.setValue(int(ab[1] * POSITION_FACTOR))
def initMidi(self):
try:
self.midiController.connect()
except Exception as e:
print("Error: could not connect to MIDI controller")
print(e)
def keyPressEvent(self, event):
if event.key() == Qt.Key_Super_L:
self.soloTool.jumpToA()
if __name__ == '__main__':
app = QApplication([])
app.setApplicationName("Solo Tool")
app.setStyle("Fusion")
# Fusion dark palette from https://gist.github.com/QuantumCD/6245215.
palette = QPalette()
palette.setColor(QPalette.Window, QColor(53, 53, 53))
palette.setColor(QPalette.WindowText, Qt.white)
palette.setColor(QPalette.Base, QColor(25, 25, 25))
palette.setColor(QPalette.AlternateBase, QColor(53, 53, 53))
palette.setColor(QPalette.ToolTipBase, Qt.white)
palette.setColor(QPalette.ToolTipText, Qt.white)
palette.setColor(QPalette.Text, Qt.white)
palette.setColor(QPalette.Button, QColor(53, 53, 53))
palette.setColor(QPalette.ButtonText, Qt.white)
palette.setColor(QPalette.BrightText, Qt.red)
palette.setColor(QPalette.Link, QColor(42, 130, 218))
palette.setColor(QPalette.Highlight, QColor(42, 130, 218))
palette.setColor(QPalette.HighlightedText, Qt.black)
app.setPalette(palette)
app.setStyleSheet("QToolTip { color: #ffffff; background-color: #2a82da; border: 1px solid white; }")
window = MainWindow()
app.exec_()
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