diff options
Diffstat (limited to 'examples/widgets/animation/easing/easing.py')
| -rw-r--r-- | examples/widgets/animation/easing/easing.py | 168 |
1 files changed, 59 insertions, 109 deletions
diff --git a/examples/widgets/animation/easing/easing.py b/examples/widgets/animation/easing/easing.py index ba7f2d363..ba5032458 100644 --- a/examples/widgets/animation/easing/easing.py +++ b/examples/widgets/animation/easing/easing.py @@ -1,44 +1,6 @@ - -############################################################################# -## -## Copyright (C) 2010 Riverbank Computing Limited. -## Copyright (C) 2021 The Qt Company Ltd. -## Contact: http://www.qt.io/licensing/ -## -## This file is part of the Qt for Python examples of the Qt Toolkit. -## -## $QT_BEGIN_LICENSE:BSD$ -## 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 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) 2010 Riverbank Computing Limited. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause from enum import IntEnum import sys @@ -46,10 +8,10 @@ import sys from PySide6.QtCore import (Property, QEasingCurve, QObject, QPropertyAnimation, QPoint, QPointF, QRect, QRectF, QSize, Qt) from PySide6.QtGui import (QBrush, QColor, QIcon, QLinearGradient, QPainter, - QPainterPath, QPen, QPixmap) + QPainterPath, QPixmap) from PySide6.QtWidgets import (QApplication, QGraphicsPixmapItem, - QGraphicsItem, QGraphicsScene, QGraphicsView, - QListWidget, QListWidgetItem, QWidget) + QGraphicsItem, QGraphicsScene, + QListWidgetItem, QWidget) from ui_form import Ui_Form @@ -148,13 +110,12 @@ class Window(QWidget): self._anim = Animation(self._item, b'pos') self._anim.setEasingCurve(QEasingCurve.OutBounce) - self._ui.easingCurvePicker.setCurrentRow(int(QEasingCurve.OutBounce)) + self._ui.easingCurvePicker.setCurrentRow(0) self.start_animation() def create_curve_icons(self): pix = QPixmap(self._iconSize) - painter = QPainter() gradient = QLinearGradient(0, 0, 0, self._iconSize.height()) gradient.setColorAt(0.0, QColor(240, 240, 240)) @@ -162,63 +123,52 @@ class Window(QWidget): brush = QBrush(gradient) - # The original C++ code uses undocumented calls to get the names of the - # different curve types. We do the Python equivalant (but without - # cheating) - curve_types = [(n, c) for n, c in QEasingCurve.__dict__.items() - if (isinstance(c, QEasingCurve.Type) - and c != QEasingCurve.Custom - and c != QEasingCurve.NCurveTypes - and c != QEasingCurve.TCBSpline)] - curve_types.sort(key=lambda ct: ct[1]) - - painter.begin(pix) - - for curve_name, curve_type in curve_types: - painter.fillRect(QRect(QPoint(0, 0), self._iconSize), brush) - curve = QEasingCurve(curve_type) - - painter.setPen(QColor(0, 0, 255, 64)) - x_axis = self._iconSize.height() / 1.5 - y_axis = self._iconSize.width() / 3.0 - painter.drawLine(0, x_axis, self._iconSize.width(), x_axis) - painter.drawLine(y_axis, 0, y_axis, self._iconSize.height()) - - curve_scale = self._iconSize.height() / 2.0 - - painter.setPen(Qt.NoPen) - - # Start point. - painter.setBrush(Qt.red) - start = QPoint(y_axis, - x_axis - curve_scale * curve.valueForProgress(0)) - painter.drawRect(start.x() - 1, start.y() - 1, 3, 3) - - # End point. - painter.setBrush(Qt.blue) - end = QPoint(y_axis + curve_scale, - x_axis - curve_scale * curve.valueForProgress(1)) - painter.drawRect(end.x() - 1, end.y() - 1, 3, 3) - - curve_path = QPainterPath() - curve_path.moveTo(QPointF(start)) - t = 0.0 - while t <= 1.0: - to = QPointF(y_axis + curve_scale * t, - x_axis - curve_scale * curve.valueForProgress(t)) - curve_path.lineTo(to) - t += 1.0 / curve_scale - - painter.setRenderHint(QPainter.Antialiasing, True) - painter.strokePath(curve_path, QColor(32, 32, 32)) - painter.setRenderHint(QPainter.Antialiasing, False) - - item = QListWidgetItem() - item.setIcon(QIcon(pix)) - item.setText(curve_name) - self._ui.easingCurvePicker.addItem(item) - - painter.end() + curve_types = [(f"QEasingCurve.{e.name}", e) for e in QEasingCurve.Type if e.value <= 40] + + with QPainter(pix) as painter: + + for curve_name, curve_type in curve_types: + painter.fillRect(QRect(QPoint(0, 0), self._iconSize), brush) + curve = QEasingCurve(curve_type) + + painter.setPen(QColor(0, 0, 255, 64)) + x_axis = self._iconSize.height() / 1.5 + y_axis = self._iconSize.width() / 3.0 + painter.drawLine(0, x_axis, self._iconSize.width(), x_axis) + painter.drawLine(y_axis, 0, y_axis, self._iconSize.height()) + + curve_scale = self._iconSize.height() / 2.0 + + painter.setPen(Qt.NoPen) + + # Start point. + painter.setBrush(Qt.red) + start = QPoint(y_axis, x_axis - curve_scale * curve.valueForProgress(0)) + painter.drawRect(start.x() - 1, start.y() - 1, 3, 3) + + # End point. + painter.setBrush(Qt.blue) + end = QPoint(y_axis + curve_scale, + x_axis - curve_scale * curve.valueForProgress(1)) + painter.drawRect(end.x() - 1, end.y() - 1, 3, 3) + + curve_path = QPainterPath() + curve_path.moveTo(QPointF(start)) + t = 0.0 + while t <= 1.0: + to = QPointF(y_axis + curve_scale * t, + x_axis - curve_scale * curve.valueForProgress(t)) + curve_path.lineTo(to) + t += 1.0 / curve_scale + + painter.setRenderHint(QPainter.Antialiasing, True) + painter.strokePath(curve_path, QColor(32, 32, 32)) + painter.setRenderHint(QPainter.Antialiasing, False) + + item = QListWidgetItem() + item.setIcon(QIcon(pix)) + item.setText(curve_name) + self._ui.easingCurvePicker.addItem(item) def start_animation(self): self._anim.setStartValue(QPointF(0, 0)) @@ -232,15 +182,15 @@ class Window(QWidget): self._anim.setEasingCurve(curve_type) self._anim.setCurrentTime(0) - is_elastic = (curve_type >= QEasingCurve.InElastic - and curve_type <= QEasingCurve.OutInElastic) - is_bounce = (curve_type >= QEasingCurve.InBounce - and curve_type <= QEasingCurve.OutInBounce) + is_elastic = (curve_type.value >= QEasingCurve.InElastic.value + and curve_type.value <= QEasingCurve.OutInElastic.value) + is_bounce = (curve_type.value >= QEasingCurve.InBounce.value + and curve_type.value <= QEasingCurve.OutInBounce.value) self._ui.periodSpinBox.setEnabled(is_elastic) self._ui.amplitudeSpinBox.setEnabled(is_elastic or is_bounce) - self._ui.overshootSpinBox.setEnabled(curve_type >= QEasingCurve.InBack - and curve_type <= QEasingCurve.OutInBack) + self._ui.overshootSpinBox.setEnabled(curve_type.value >= QEasingCurve.InBack.value + and curve_type.value <= QEasingCurve.OutInBack.value) def path_changed(self, index): self._anim.set_path_type(index) |