app.qml¶
//![0]
import Charts 1.0
import QtQuick 2.0
Item {
width: 300; height: 200
PieChart {
id: chart
anchors.centerIn: parent
width: 100; height: 100
pieSlice: PieSlice {
anchors.fill: parent
color: "red"
}
}
Component.onCompleted: console.log("The pie is colored " + chart.pieSlice.color)
}
//![0]
customPropertyTypes.py¶
"""PySide6 port of the qml/tutorials/extending-qml/chapter4-customPropertyTypes example from Qt v5.x"""
import os
import sys
from PySide6.QtCore import Property, QUrl
from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
from PySide6.QtQml import qmlRegisterType
from PySide6.QtQuick import QQuickPaintedItem, QQuickView, QQuickItem
class PieSlice (QQuickPaintedItem):
def __init__(self, parent = None):
QQuickPaintedItem.__init__(self, parent)
self._color = QColor()
def getColor(self):
return self._color
def setColor(self, value):
self._color = value
color = Property(QColor, getColor, setColor)
def paint(self, painter):
pen = QPen(self._color, 2)
painter.setPen(pen)
painter.setRenderHints(QPainter.Antialiasing, True)
painter.drawPie(self.boundingRect().adjusted(1,1,-1,-1), 90 * 16, 290 * 16)
class PieChart (QQuickItem):
def __init__(self, parent = None):
QQuickItem.__init__(self, parent)
self._name = None
self._pieSlice = None
def getName(self):
return self._name
def setName(self, value):
self._name = value
name = Property(str, getName, setName)
def getPieSlice(self):
return self._pieSlice
def setPieSlice(self, value):
self._pieSlice = value
self._pieSlice.setParentItem(self)
pieSlice = Property(PieSlice, getPieSlice, setPieSlice)
if __name__ == '__main__':
app = QGuiApplication(sys.argv)
qmlRegisterType(PieChart, 'Charts', 1, 0, 'PieChart')
qmlRegisterType(PieSlice, "Charts", 1, 0, "PieSlice")
view = QQuickView()
view.setResizeMode(QQuickView.SizeRootObjectToView)
qmlFile = os.path.join(os.path.dirname(__file__), 'app.qml')
view.setSource(QUrl.fromLocalFile(os.path.abspath(qmlFile)))
if view.status() == QQuickView.Error:
sys.exit(-1)
view.show()
res = app.exec_()
# Deleting the view before it goes out of scope is required to make sure all child QML instances
# are destroyed in the correct order.
del view
sys.exit(res)
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