src/eric7/eric7_trpreviewer.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Copyright (c) 2004 - 2023 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
eric TR Previewer.

This is the main Python script that performs the necessary initialization
of the tr previewer and starts the Qt event loop. This is a standalone version
of the integrated tr previewer.
"""

import os
import sys

from PyQt6.QtGui import QGuiApplication

for arg in sys.argv[:]:
    if arg.startswith("--config="):
        from eric7 import Globals

        configDir = arg.replace("--config=", "")
        Globals.setConfigDir(configDir)
        sys.argv.remove(arg)
    elif arg.startswith("--settings="):
        from PyQt6.QtCore import QSettings

        settingsDir = os.path.expanduser(arg.replace("--settings=", ""))
        if not os.path.isdir(settingsDir):
            os.makedirs(settingsDir)
        QSettings.setPath(
            QSettings.Format.IniFormat, QSettings.Scope.UserScope, settingsDir
        )
        sys.argv.remove(arg)

from eric7.EricWidgets.EricApplication import EricApplication
from eric7.Globals import AppInfo
from eric7.Toolbox import Startup
from eric7.Tools.TRSingleApplication import TRSingleApplicationClient

app = None


def createMainWidget(argv):
    """
    Function to create the main widget.

    @param argv list of commandline parameters (list of strings)
    @return reference to the main widget (QWidget)
    """
    from eric7.Tools.TRPreviewer import TRPreviewer

    files = argv[1:] if len(argv) > 1 else []
    previewer = TRPreviewer(files, None, "TRPreviewer")

    return previewer


def main():
    """
    Main entry point into the application.
    """
    global app

    QGuiApplication.setDesktopFileName("eric7_trpreviewer.desktop")

    options = [
        (
            "--config=configDir",
            "use the given directory as the one containing the config files",
        ),
        (
            "--settings=settingsDir",
            "use the given directory to store the settings files",
        ),
    ]
    appinfo = AppInfo.makeAppInfo(
        sys.argv, "eric TR Previewer", "file", "TR file previewer", options
    )

    # set the library paths for plugins
    Startup.setLibraryPaths()

    app = EricApplication(sys.argv)
    client = TRSingleApplicationClient()
    res = client.connect()
    if res > 0:
        if len(sys.argv) > 1:
            client.processArgs(sys.argv[1:])
        sys.exit(0)
    elif res < 0:
        print("eric7_trpreviewer: {0}".format(client.errstr()))
        sys.exit(res)
    else:
        res = Startup.simpleAppStartup(sys.argv, appinfo, createMainWidget, app=app)
        sys.exit(res)


if __name__ == "__main__":
    main()

#
# eflag: noqa = M801