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#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2018 Riverbank Computing Limited.
## Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
##
## 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:
##
## "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, 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 Digia Plc 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.
##
##
## 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 pyqtProperty, pyqtSignal, pyqtSlot, QRectF, Qt, QUrl
from PyQt5.QtGui import QColor, QGuiApplication, QPainter, QPen
from PyQt5.QtQml import qmlRegisterType
from PyQt5.QtQuick import QQuickPaintedItem, QQuickView
class PieChart(QQuickPaintedItem):
chartCleared = pyqtSignal()
@pyqtProperty(str)
def name(self):
return self._name
@name.setter
def name(self, name):
self._name = name
@pyqtProperty(QColor)
def color(self):
return self._color
@color.setter
def color(self, color):
self._color = QColor(color)
def __init__(self, parent=None):
super(PieChart, self).__init__(parent)
self._name = ''
self._color = QColor()
def paint(self, painter):
painter.setPen(QPen(self._color, 2))
painter.setRenderHints(QPainter.Antialiasing, True)
rect = QRectF(0, 0, self.width(), self.height()).adjusted(1, 1, -1, -1)
painter.drawPie(rect, 90 * 16, 290 * 16)
@pyqtSlot()
def clearChart(self):
self.color = QColor(Qt.transparent)
self.update()
self.chartCleared.emit()
if __name__ == '__main__':
import os
import sys
app = QGuiApplication(sys.argv)
qmlRegisterType(PieChart, "Charts", 1, 0, "PieChart")
view = QQuickView()
view.setResizeMode(QQuickView.SizeRootObjectToView)
view.setSource(
QUrl.fromLocalFile(
os.path.join(os.path.dirname(os.path.abspath(__file__)),
'app.qml')))
view.show()
sys.exit(app.exec_())
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