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Create QML component dynamically from Python
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import sys | |
from PyQt5.QtCore import QUrl, pyqtProperty, pyqtSignal | |
from PyQt5.QtCore import pyqtSlot | |
from PyQt5.QtGui import QGuiApplication | |
from PyQt5.QtQml import QQmlApplicationEngine | |
from PyQt5.QtQml import qmlRegisterType, QQmlComponent | |
from PyQt5.QtQuick import QQuickItem | |
class Widget(QQuickItem): | |
def __init__(self, parent=None): | |
super().__init__(parent) | |
self._name = "Value" | |
print("New Widget handler created") | |
nameChanged = pyqtSignal() | |
@pyqtProperty('QString', notify=nameChanged) | |
def name(self): | |
return self._name | |
@name.setter | |
def name(self, name): | |
self._name = name | |
self.nameChanged.emit() | |
@pyqtSlot(str, name="change") | |
def change(self, value): | |
print("Catched!!!!", value) | |
self.name = "Ch-ch-ch-changes! " + value | |
qmlRegisterType(Widget, 'MyWidgets', 1, 0, 'Widget') | |
app = QGuiApplication(sys.argv) | |
engine = QQmlApplicationEngine() | |
engine.load("app.qml") | |
# get root (ApplicationWindow casted to QQuickItem) | |
root = engine.rootObjects()[0].children()[0] | |
# create component | |
component = QQmlComponent(engine) | |
component.loadUrl(QUrl("widget.qml")) | |
itm = component.create() | |
itm.setParentItem(root) | |
# fire and forget | |
sys.exit(app.exec_()) |
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import QtQuick 2.5 | |
import QtQuick.Controls 1.4 | |
ApplicationWindow { | |
id: root | |
visible: true | |
width: 640 | |
height: 480 | |
} |
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import QtQuick 2.5 | |
import MyWidgets 1.0 | |
Widget { | |
id: self | |
Rectangle { | |
id: rect | |
color: "blue" | |
width: 100 | |
height: 200 | |
Text { | |
text: self.name | |
} | |
MouseArea { | |
anchors.fill: parent | |
onClicked: { | |
parent.color = 'green' | |
self.change("We gotcha click!") | |
} | |
} | |
} | |
} |
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Awesome! You saved me some quality time after some hours or research. By any chance do you know how to set some properties for the qml components? For example if you want to position a qml at x: 70, how would that be specified in Python? Thank you in advance!