copied and modified launch script

openpype/hosts/tvpaint/api/launch_script.py

@@ -0,0 +1,84 @@
+import os
+import sys
+import signal
+import traceback
+import ctypes
+import platform
+import logging
+
+from Qt import QtWidgets, QtCore, QtGui
+
+from avalon import api
+from openpype import style
+from openpype.hosts.tvpaint.api.communication_server import (
+    CommunicationWrapper
+)
+from openpype.hosts.tvpaint import api as tvpaint_host
+
+log = logging.getLogger(__name__)
+
+
+def safe_excepthook(*args):
+    traceback.print_exception(*args)
+
+
+def main(launch_args):
+    # Be sure server won't crash at any moment but just print traceback
+    sys.excepthook = safe_excepthook
+
+    # Create QtApplication for tools
+    # - QApplicaiton is also main thread/event loop of the server
+    qt_app = QtWidgets.QApplication([])
+
+    # Execute pipeline installation
+    api.install(tvpaint_host)
+
+    # Create Communicator object and trigger launch
+    # - this must be done before anything is processed
+    communicator = CommunicationWrapper.create_communicator(qt_app)
+    communicator.launch(launch_args)
+
+    def process_in_main_thread():
+        """Execution of `MainThreadItem`."""
+        item = communicator.main_thread_listen()
+        if item:
+            item.execute()
+
+    timer = QtCore.QTimer()
+    timer.setInterval(100)
+    timer.timeout.connect(process_in_main_thread)
+    timer.start()
+
+    # Register terminal signal handler
+    def signal_handler(*_args):
+        print("You pressed Ctrl+C. Process ended.")
+        communicator.stop()
+
+    signal.signal(signal.SIGINT, signal_handler)
+    signal.signal(signal.SIGTERM, signal_handler)
+
+    qt_app.setQuitOnLastWindowClosed(False)
+    qt_app.setStyleSheet(style.load_stylesheet())
+
+    # Load avalon icon
+    icon_path = style.app_icon_path()
+    if icon_path:
+        icon = QtGui.QIcon(icon_path)
+        qt_app.setWindowIcon(icon)
+
+    # Set application name to be able show application icon in task bar
+    if platform.system().lower() == "windows":
+        ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(
+            u"WebsocketServer"
+        )
+
+    # Run Qt application event processing
+    sys.exit(qt_app.exec_())
+
+
+if __name__ == "__main__":
+    args = list(sys.argv)
+    if os.path.abspath(__file__) == os.path.normpath(args[0]):
+        # Pop path to script
+        args.pop(0)
+    main(args)