1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
"""PySide6 port of the qml/examples/qml/referenceexamples/extended example from Qt v6.x"""
from pathlib import Path
import sys
from PySide6.QtCore import QObject, QUrl, Property
from PySide6.QtWidgets import QApplication, QLineEdit
from PySide6.QtQml import (QQmlComponent, QQmlEngine, QmlForeign, QmlExtended,
QmlNamedElement)
# To be used on the @QmlElement decorator
# (QML_IMPORT_MINOR_VERSION is optional)
QML_IMPORT_NAME = "examples.extend"
QML_IMPORT_MAJOR_VERSION = 1
class LineEditExtension(QObject):
def __init__(self, parent=None):
super().__init__(parent)
self._line_edit = parent
@Property(int)
def left_margin(self):
return self._line_edit.textMargins().left()
@left_margin.setter
def left_margin(self, m):
margins = self._line_edit.textMargins()
margins.setLeft(m)
self._line_edit.setTextMargins(margins)
@Property(int)
def right_margin(self):
return self._line_edit.textMargins().right()
@right_margin.setter
def right_margin(self, m):
margins = self._line_edit.textMargins()
margins.setRight(m)
self._line_edit.setTextMargins(margins)
@Property(int)
def top_margin(self):
return self._line_edit.textMargins().top()
@top_margin.setter
def top_margin(self, m):
margins = self._line_edit.textMargins()
margins.setTop(m)
self._line_edit.setTextMargins(margins)
@Property(int)
def bottom_margin(self):
return self._line_edit.textMargins().bottom()
@bottom_margin.setter
def bottom_margin(self, m):
margins = self._line_edit.textMargins()
margins.setBottom(m)
self._line_edit.setTextMargins(margins)
@QmlNamedElement("QLineEdit")
@QmlExtended(LineEditExtension)
@QmlForeign(QLineEdit)
class LineEditForeign(QObject):
def __init__(self, parent=None):
super().__init__(parent)
if __name__ == '__main__':
app = QApplication(sys.argv)
qml_file = Path(__file__).parent / "example.qml"
url = QUrl.fromLocalFile(qml_file)
engine = QQmlEngine()
component = QQmlComponent(engine, url)
widget = component.create()
if not widget:
print(component.errors())
del engine
sys.exit(-1)
widget.show()
r = app.exec()
# Deleting the engine before it goes out of scope is required to make sure
# all child QML instances are destroyed in the correct order.
del engine
sys.exit(r)
|