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# Copyright (C) 2010 Riverbank Computing Limited.
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import sys
from PySide6.QtCore import (QPointF, QPropertyAnimation, QRect, QRectF, Qt,
Signal)
from PySide6.QtGui import QPixmap
from PySide6.QtWidgets import (QApplication, QGraphicsScene, QGraphicsView,
QGraphicsWidget)
from PySide6.QtStateMachine import QState, QStateMachine
import appchooser_rc # noqa: F401
class Pixmap(QGraphicsWidget):
clicked = Signal()
def __init__(self, pix, parent=None):
super().__init__(parent)
self.orig = QPixmap(pix)
self.p = QPixmap(pix)
def paint(self, painter, option, widget):
painter.drawPixmap(QPointF(), self.p)
def mousePressEvent(self, ev):
self.clicked.emit()
def setGeometry(self, rect):
super(Pixmap, self).setGeometry(rect)
if rect.size().width() > self.orig.size().width():
self.p = self.orig.scaled(rect.size().toSize())
else:
self.p = QPixmap(self.orig)
def create_states(objects, selectedRect, parent):
for obj in objects:
state = QState(parent)
state.assignProperty(obj, 'geometry', selectedRect)
parent.addTransition(obj.clicked, state)
def create_animations(objects, machine):
for obj in objects:
animation = QPropertyAnimation(obj, b'geometry', obj)
machine.addDefaultAnimation(animation)
if __name__ == '__main__':
app = QApplication(sys.argv)
p1 = Pixmap(QPixmap(':/digikam.png'))
p2 = Pixmap(QPixmap(':/akregator.png'))
p3 = Pixmap(QPixmap(':/accessories-dictionary.png'))
p4 = Pixmap(QPixmap(':/k3b.png'))
p1.setGeometry(QRectF(0.0, 0.0, 64.0, 64.0))
p2.setGeometry(QRectF(236.0, 0.0, 64.0, 64.0))
p3.setGeometry(QRectF(236.0, 236.0, 64.0, 64.0))
p4.setGeometry(QRectF(0.0, 236.0, 64.0, 64.0))
scene = QGraphicsScene(0, 0, 300, 300)
scene.setBackgroundBrush(Qt.white)
scene.addItem(p1)
scene.addItem(p2)
scene.addItem(p3)
scene.addItem(p4)
window = QGraphicsView(scene)
window.setFrameStyle(0)
window.setAlignment(Qt.AlignLeft | Qt.AlignTop)
window.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
window.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
machine = QStateMachine()
machine.setGlobalRestorePolicy(QStateMachine.RestoreProperties)
group = QState(machine)
selected_rect = QRect(86, 86, 128, 128)
idle_state = QState(group)
group.setInitialState(idle_state)
objects = [p1, p2, p3, p4]
create_states(objects, selected_rect, group)
create_animations(objects, machine)
machine.setInitialState(group)
machine.start()
window.resize(300, 300)
window.show()
sys.exit(app.exec())
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