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#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2017 Hans-Peter Jansen <hpj@urpla.net>
## Copyright (C) 2016 The Qt Company Ltd.
##
## This file is part of the examples of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:BSD$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https:#www.qt.io/terms-conditions. For further
## information use the contact form at https:#www.qt.io/contact-us.
##
## BSD License Usage
## Alternatively, you may use self file under the terms of the BSD license
## as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, self list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, self list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of The Qt Company Ltd nor the names of its
## contributors may be used to endorse or promote products derived
## from self software without specific prior written permission.
##
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
##
## $QT_END_LICENSE$
##
#############################################################################
from PyQt5.QtCore import (QAbstractItemModel, QFileInfo, QItemSelectionModel,
QModelIndex, Qt)
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import (QAbstractItemView, QApplication,
QFileIconProvider, QListView, QSplitter, QTableView, QTreeView)
images_dir = QFileInfo(__file__).absolutePath() + '/images'
class Node(object):
def __init__(self, parent = None):
self.parent = parent
self.children = []
class Model(QAbstractItemModel):
def __init__(self, rows, columns, parent = None):
super(Model, self).__init__(parent)
self.services = QIcon(images_dir + '/services.png')
self.rc = rows
self.cc = columns
self.tree = [Node() for node in range(rows)]
self.iconProvider = QFileIconProvider()
def index(self, row, column, parent):
if row < self.rc and row >= 0 and column < self.cc and column >= 0:
parentNode = parent.internalPointer()
childNode = self.node(row, parentNode)
if childNode is not None:
return self.createIndex(row, column, childNode)
return QModelIndex()
def parent(self, child):
if isinstance(child, QModelIndex):
# parent of QModelIndex child
if child.isValid():
childNode = child.internalPointer()
parentNode = self.parent(childNode)
if parentNode:
return self.createIndex(self.row(parentNode), 0, parentNode)
return QModelIndex()
else:
# parent of Node
if child:
return child.parent
def rowCount(self, parent):
if parent.isValid() and parent.column() != 0:
return 0
return self.rc
def columnCount(self, parent):
return self.cc
def data(self, index, role):
if not index.isValid():
return None
elif role == Qt.DisplayRole:
return "Item %d:%s" % (index.row(), index.column())
elif role == Qt.DecorationRole:
if index.column() == 0:
return self.iconProvider.icon(QFileIconProvider.Folder)
return self.iconProvider.icon(QFileIconProvider.File)
return None
def headerData(self, section, orientation, role):
if role == Qt.DisplayRole:
return str(section)
if role == Qt.DecorationRole:
return self.services
return super(Model, self).headerData(section, orientation, role)
def hasChildren(self, parent):
if parent.isValid() and parent.column() != 0:
return False
return self.rc > 0 and self.cc > 0
def flags(self, index):
if not index.isValid():
return 0
return Qt.ItemIsDragEnabled | super(Model, self).flags(index)
def node(self, row, parent):
if parent and not parent.children:
parent.children = [Node(parent) for node in range(self.rc)]
if parent:
return parent.children[row]
else:
return self.tree[row]
def row(self, node):
if node.parent:
return node.parent.children.index(node)
else:
return self.tree.index(node)
def main(args):
app = QApplication(args)
page = QSplitter()
data = Model(1000, 10, page)
selections = QItemSelectionModel(data)
table = QTableView()
table.setModel(data)
table.setSelectionModel(selections)
table.horizontalHeader().setSectionsMovable(True)
table.verticalHeader().setSectionsMovable(True)
# Set StaticContents to enable minimal repaints on resizes.
table.viewport().setAttribute(Qt.WA_StaticContents)
page.addWidget(table)
tree = QTreeView()
tree.setModel(data)
tree.setSelectionModel(selections)
tree.setUniformRowHeights(True)
tree.header().setStretchLastSection(False)
tree.viewport().setAttribute(Qt.WA_StaticContents)
# Disable the focus rect to get minimal repaints when scrolling on Mac.
tree.setAttribute(Qt.WA_MacShowFocusRect, False)
page.addWidget(tree)
list = QListView()
list.setModel(data)
list.setSelectionModel(selections)
list.setViewMode(QListView.IconMode)
list.setSelectionMode(QAbstractItemView.ExtendedSelection)
list.setAlternatingRowColors(False)
list.viewport().setAttribute(Qt.WA_StaticContents)
list.setAttribute(Qt.WA_MacShowFocusRect, False)
page.addWidget(list)
page.setWindowIcon(QIcon(images_dir + '/interview.png'))
page.setWindowTitle("Interview")
page.show()
return app.exec_()
if __name__ == '__main__':
import sys
main(sys.argv)
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