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Carla
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Audio plugin host https://kx.studio/carla
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Carla/source/frontend/dialogs/jackappdialog.py

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  1. #!/usr/bin/env python3

  2. # -*- coding: utf-8 -*-

  3. 

  4. # Carla plugin host

  5. # Copyright (C) 2011-2022 Filipe Coelho <falktx@falktx.com>

  6. #

  7. # This program is free software; you can redistribute it and/or

  8. # modify it under the terms of the GNU General Public License as

  9. # published by the Free Software Foundation; either version 2 of

  10. # the License, or any later version.

  11. #

  12. # This program is distributed in the hope that it will be useful,

  13. # but WITHOUT ANY WARRANTY; without even the implied warranty of

  14. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  15. # GNU General Public License for more details.

  16. #

  17. # For a full copy of the GNU General Public License see the doc/GPL.txt file.

  18. 

  19. # ---------------------------------------------------------------------------------------------------------------------

  20. # Imports (Global)

  21. 

  22. import os

  23. 

  24. from PyQt5.QtCore import pyqtSlot, Qt

  25. from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QWidget

  26. 

  27. # ---------------------------------------------------------------------------------------------------------------------

  28. # Imports (Carla)

  29. 

  30. from utils import QSafeSettings

  31. 

  32. # ---------------------------------------------------------------------------------------------------------------------

  33. # Imports (Local)

  34. 

  35. from jackappdialog_ui import Ui_JackAppDialog

  36. 

  37. # ---------------------------------------------------------------------------------------------------------------------

  38. # Imports (API)

  39. 

  40. SESSION_MGR_NONE   = 0

  41. SESSION_MGR_AUTO   = 1

  42. SESSION_MGR_JACK   = 2

  43. SESSION_MGR_LADISH = 3

  44. SESSION_MGR_NSM    = 4

  45. 

  46. FLAG_CONTROL_WINDOW              = 0x01

  47. FLAG_CAPTURE_FIRST_WINDOW        = 0x02

  48. FLAG_BUFFERS_ADDITION_MODE       = 0x10

  49. FLAG_MIDI_OUTPUT_CHANNEL_MIXDOWN = 0x20

  50. FLAG_EXTERNAL_START              = 0x40

  51. 

  52. # ---------------------------------------------------------------------------------------------------------------------

  53. # Jack Application Dialog

  54. 

  55. UI_SESSION_NONE   = 0

  56. UI_SESSION_LADISH = 1

  57. UI_SESSION_NSM    = 2

  58. 

  59. class JackAppDialog(QDialog):

  60.     def __init__(self, parent: QWidget, projectFilename: str):

  61.         QDialog.__init__(self, parent)

  62.         self.ui = Ui_JackAppDialog()

  63.         self.ui.setupUi(self)

  64. 

  65.         self.fProjectFilename = projectFilename

  66. 

  67.         # --------------------------------------------------------------------------------------------------------------

  68.         # UI setup

  69. 

  70.         self.ui.group_error.setVisible(False)

  71.         self.adjustSize()

  72.         self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)

  73. 

  74.         # --------------------------------------------------------------------------------------------------------------

  75.         # Load settings

  76. 

  77.         self._loadSettings()

  78. 

  79.         # --------------------------------------------------------------------------------------------------------------

  80.         # Set-up connections

  81. 

  82.         self.finished.connect(self._slot_saveSettings)

  83.         self.ui.cb_session_mgr.currentIndexChanged.connect(self._slot_sessionManagerChanged)

  84.         self.ui.le_command.textChanged.connect(self._slot_commandChanged)

  85. 

  86.     # -----------------------------------------------------------------------------------------------------------------

  87.     # public methods

  88. 

  89.     def getCommandAndFlags(self):

  90.         name    = self.ui.le_name.text()

  91.         command = self.ui.le_command.text()

  92.         smgr    = SESSION_MGR_NONE

  93.         flags   = 0x0

  94. 

  95.         if not name:

  96.             name = os.path.basename(command.split(" ",1)[0]).title()

  97. 

  98.         uiSessionMgrIndex = self.ui.cb_session_mgr.currentIndex()

  99.         if uiSessionMgrIndex == UI_SESSION_LADISH:

  100.             smgr = SESSION_MGR_LADISH

  101.         elif uiSessionMgrIndex == UI_SESSION_NSM:

  102.             smgr = SESSION_MGR_NSM

  103. 

  104.         if self.ui.cb_manage_window.isChecked():

  105.             flags |= FLAG_CONTROL_WINDOW

  106.         if self.ui.cb_capture_first_window.isChecked():

  107.             flags |= FLAG_CAPTURE_FIRST_WINDOW

  108.         if self.ui.cb_buffers_addition_mode.isChecked():

  109.             flags |= FLAG_BUFFERS_ADDITION_MODE

  110.         if self.ui.cb_out_midi_mixdown.isChecked():

  111.             flags |= FLAG_MIDI_OUTPUT_CHANNEL_MIXDOWN

  112.         if self.ui.cb_external_start.isChecked():

  113.             flags |= FLAG_EXTERNAL_START

  114. 

  115.         bv = ord('0')

  116.         v1 = chr(bv + self.ui.sb_audio_ins.value())

  117.         v2 = chr(bv + self.ui.sb_audio_outs.value())

  118.         v3 = chr(bv + self.ui.sb_midi_ins.value())

  119.         v4 = chr(bv + self.ui.sb_midi_outs.value())

  120.         v5 = chr(bv + smgr)

  121.         v6 = chr(bv + flags)

  122.         labelSetup = f"{v1}{v2}{v3}{v4}{v5}{v6}"

  123. 

  124.         return (command, name, labelSetup)

  125. 

  126.     # -----------------------------------------------------------------------------------------------------------------

  127.     # private methods

  128. 

  129.     def _checkIfButtonBoxShouldBeEnabled(self, index: int, command: str):

  130.         enabled = len(command) > 0

  131.         showErr = ""

  132. 

  133.         # NSM applications must not be abstract or absolute paths, and must not contain arguments

  134.         if enabled and index == UI_SESSION_NSM:

  135.             if command[0] in (".", "/"):

  136.                 showErr = self.tr("NSM applications cannot use abstract or absolute paths")

  137.             elif " " in command or ";" in command or "&" in command:

  138.                 showErr = self.tr("NSM applications cannot use CLI arguments")

  139.             elif not self.fProjectFilename:

  140.                 showErr = self.tr("You need to save the current Carla project before NSM can be used")

  141. 

  142.         if showErr:

  143.             enabled = False

  144.             self.ui.l_error.setText(showErr)

  145.             self.ui.group_error.setVisible(True)

  146.         else:

  147.             self.ui.group_error.setVisible(False)

  148. 

  149.         self.ui.buttonBox.button(QDialogButtonBox.Ok).setEnabled(enabled)

  150. 

  151.     def _loadSettings(self):

  152.         settings = QSafeSettings("falkTX", "CarlaAddJackApp")

  153. 

  154.         smName = settings.value("SessionManager", "", str)

  155. 

  156.         if smName == "LADISH (SIGUSR1)":

  157.             self.ui.cb_session_mgr.setCurrentIndex(UI_SESSION_LADISH)

  158.         elif smName == "NSM":

  159.             self.ui.cb_session_mgr.setCurrentIndex(UI_SESSION_NSM)

  160.         else:

  161.             self.ui.cb_session_mgr.setCurrentIndex(UI_SESSION_NONE)

  162. 

  163.         self.ui.le_command.setText(settings.value("Command", "", str))

  164.         self.ui.le_name.setText(settings.value("Name", "", str))

  165.         self.ui.sb_audio_ins.setValue(settings.value("NumAudioIns", 2, int))

  166.         self.ui.sb_audio_ins.setValue(settings.value("NumAudioIns", 2, int))

  167.         self.ui.sb_audio_outs.setValue(settings.value("NumAudioOuts", 2, int))

  168.         self.ui.sb_midi_ins.setValue(settings.value("NumMidiIns", 0, int))

  169.         self.ui.sb_midi_outs.setValue(settings.value("NumMidiOuts", 0, int))

  170.         self.ui.cb_manage_window.setChecked(settings.value("ManageWindow", True, bool))

  171.         self.ui.cb_capture_first_window.setChecked(settings.value("CaptureFirstWindow", False, bool))

  172.         self.ui.cb_out_midi_mixdown.setChecked(settings.value("MidiOutMixdown", False, bool))

  173. 

  174.         self._checkIfButtonBoxShouldBeEnabled(self.ui.cb_session_mgr.currentIndex(),

  175.                                               self.ui.le_command.text())

  176. 

  177.     # -----------------------------------------------------------------------------------------------------------------

  178.     # private slots

  179. 

  180.     @pyqtSlot(str)

  181.     def _slot_commandChanged(self, command: str):

  182.         self._checkIfButtonBoxShouldBeEnabled(self.ui.cb_session_mgr.currentIndex(), command)

  183. 

  184.     @pyqtSlot(int)

  185.     def _slot_sessionManagerChanged(self, index: int):

  186.         self._checkIfButtonBoxShouldBeEnabled(index, self.ui.le_command.text())

  187. 

  188.     @pyqtSlot()

  189.     def _slot_saveSettings(self):

  190.         settings = QSafeSettings("falkTX", "CarlaAddJackApp")

  191.         settings.setValue("Command", self.ui.le_command.text())

  192.         settings.setValue("Name", self.ui.le_name.text())

  193.         settings.setValue("SessionManager", self.ui.cb_session_mgr.currentText())

  194.         settings.setValue("NumAudioIns", self.ui.sb_audio_ins.value())

  195.         settings.setValue("NumAudioOuts", self.ui.sb_audio_outs.value())

  196.         settings.setValue("NumMidiIns", self.ui.sb_midi_ins.value())

  197.         settings.setValue("NumMidiOuts", self.ui.sb_midi_outs.value())

  198.         settings.setValue("ManageWindow", self.ui.cb_manage_window.isChecked())

  199.         settings.setValue("CaptureFirstWindow", self.ui.cb_capture_first_window.isChecked())

  200.         settings.setValue("MidiOutMixdown", self.ui.cb_out_midi_mixdown.isChecked())

  201. 

  202. # ---------------------------------------------------------------------------------------------------------------------

  203. # Testing

  204. 

  205. if __name__ == '__main__':

  206.     import sys

  207.     # pylint: disable=ungrouped-imports

  208.     from PyQt5.QtWidgets import QApplication

  209.     # pylint: enable=ungrouped-imports

  210. 

  211.     _app = QApplication(sys.argv)

  212.     _gui = JackAppDialog(None, "")

  213. 

  214.     if _gui.exec_():

  215.         _command, _name, _labelSetup = _gui.getCommandAndFlags()

  216.         print("Results:")

  217.         print(f"\tCommand:    {_command}")

  218.         print(f"\tName:       {_name}")

  219.         print(f"\tLabelSetup: {_labelSetup}")

  220. 

  221. # ---------------------------------------------------------------------------------------------------------------------