#!/usr/bin/env python


#############################################################################
##
## Copyright (C) 2017 Riverbank Computing Limited.
## Copyright (C) 2017 Hans-Peter Jansen <hpj@urpla.net>
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
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## modification, are permitted provided that the following conditions are
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##   * Redistributions of source code must retain the above copyright
##     notice, this list of conditions and the following disclaimer.
##   * Redistributions in binary form must reproduce the above copyright
##     notice, this list of conditions and the following disclaimer in
##     the documentation and/or other materials provided with the
##     distribution.
##   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
##     the names of its contributors may be used to endorse or promote
##     products derived from this software without specific prior written
##     permission.
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## $QT_END_LICENSE$
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#############################################################################


import sys

from PyQt5.QtCore import (QCommandLineOption, QCommandLineParser,
        QCoreApplication, QDir, QT_VERSION_STR)
from PyQt5.QtWidgets import (QApplication, QFileIconProvider, QFileSystemModel,
        QTreeView)


app = QApplication(sys.argv)

QCoreApplication.setApplicationVersion(QT_VERSION_STR)
parser = QCommandLineParser()
parser.setApplicationDescription("Qt Dir View Example")
parser.addHelpOption()
parser.addVersionOption()

dontUseCustomDirectoryIconsOption = QCommandLineOption('c',
        "Set QFileIconProvider.DontUseCustomDirectoryIcons")
parser.addOption(dontUseCustomDirectoryIconsOption)
parser.addPositionalArgument('directory', "The directory to start in.")
parser.process(app)
try:
    rootPath = parser.positionalArguments().pop(0)
except IndexError:
    rootPath = None

model = QFileSystemModel()
model.setRootPath('')
if parser.isSet(dontUseCustomDirectoryIconsOption):
    model.iconProvider().setOptions(
            QFileIconProvider.DontUseCustomDirectoryIcons)
tree = QTreeView()
tree.setModel(model)
if rootPath is not None:
    rootIndex = model.index(QDir.cleanPath(rootPath))
    if rootIndex.isValid():
        tree.setRootIndex(rootIndex)

# Demonstrating look and feel features.
tree.setAnimated(False)
tree.setIndentation(20)
tree.setSortingEnabled(True)

availableSize = QApplication.desktop().availableGeometry(tree).size()
tree.resize(availableSize / 2)
tree.setColumnWidth(0, tree.width() / 3)

tree.setWindowTitle("Dir View")
tree.show()

sys.exit(app.exec_())