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-rw-r--r--examples/widgetbinding/wigglywidget.py114
1 files changed, 43 insertions, 71 deletions
diff --git a/examples/widgetbinding/wigglywidget.py b/examples/widgetbinding/wigglywidget.py
index 50a061074..3362eab6b 100644
--- a/examples/widgetbinding/wigglywidget.py
+++ b/examples/widgetbinding/wigglywidget.py
@@ -1,74 +1,39 @@
-############################################################################
-##
-## Copyright (C) 2020 The Qt Company Ltd.
-## Contact: https://www.qt.io/licensing/
-##
-## This file is part of the Qt for Python 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 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 The Qt Company Ltd 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."
-##
-## $QT_END_LICENSE$
-##
-############################################################################
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-from PySide2.QtCore import QBasicTimer
-from PySide2.QtGui import QColor, QFontMetrics, QPainter, QPalette
-from PySide2.QtWidgets import QWidget
+from PySide6.QtCore import QBasicTimer, Property
+from PySide6.QtGui import QColor, QFontMetrics, QPainter, QPalette
+from PySide6.QtWidgets import QWidget
class WigglyWidget(QWidget):
def __init__(self, parent=None):
- super(WigglyWidget, self).__init__(parent)
- self.step = 0
- self.text = ""
+ super().__init__(parent)
+ self._step = 0
+ self._text = ""
self.setBackgroundRole(QPalette.Midlight)
self.setAutoFillBackground(True)
- newFont = self.font()
- newFont.setPointSize(newFont.pointSize() + 20)
- self.setFont(newFont)
+ new_font = self.font()
+ new_font.setPointSize(new_font.pointSize() + 20)
+ self.setFont(new_font)
+ self._timer = QBasicTimer()
- self.timer = QBasicTimer()
- self.timer.start(60, self)
+ def isRunning(self):
+ return self._timer.isActive()
+
+ def setRunning(self, r):
+ if r == self.isRunning():
+ return
+ if r:
+ self._timer.start(60, self)
+ else:
+ self._timer.stop()
def paintEvent(self, event):
+ if not self._text:
+ return
+
sineTable = [0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100,
-92, -71, -38]
@@ -77,21 +42,28 @@ class WigglyWidget(QWidget):
y = (self.height() + metrics.ascent() - metrics.descent()) / 2
color = QColor()
- painter = QPainter(self)
- for i in range(len(self.text)):
- index = (self.step + i) % 16
- color.setHsv((15 - index) * 16, 255, 191)
- painter.setPen(color)
- painter.drawText(x, y - ((sineTable[index] * metrics.height()) / 400),
- str(self.text[i]))
- x += metrics.horizontalAdvance(self.text[i])
+ with QPainter(self) as painter:
+ for i in range(len(self.text)):
+ index = (self._step + i) % 16
+ color.setHsv((15 - index) * 16, 255, 191)
+ painter.setPen(color)
+ dy = (sineTable[index] * metrics.height()) / 400
+ c = self._text[i]
+ painter.drawText(x, y - dy, str(c))
+ x += metrics.horizontalAdvance(c)
def timerEvent(self, event):
- if event.timerId() == self.timer.timerId():
- self.step += 1
+ if event.timerId() == self._timer.timerId():
+ self._step += 1
self.update()
else:
QWidget.timerEvent(event)
+ def text(self):
+ return self._text
+
def setText(self, text):
- self.text = text
+ self._text = text
+
+ running = Property(bool, isRunning, setRunning)
+ text = Property(str, text, setText)