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https://github.com/pyqt/examples.git
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140 lines
4.6 KiB
Python
140 lines
4.6 KiB
Python
#!/usr/bin/env python
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#############################################################################
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##
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## Copyright (C) 2013 Riverbank Computing Limited.
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## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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## All rights reserved.
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##
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## This file is part of the examples of PyQt.
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##
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## $QT_BEGIN_LICENSE:BSD$
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## You may use this file under the terms of the BSD license as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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## the names of its contributors may be used to endorse or promote
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## products derived from this software without specific prior written
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## permission.
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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## $QT_END_LICENSE$
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##
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#############################################################################
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from PyQt5.QtCore import (pyqtSignal, QPointF, QPropertyAnimation, QRect,
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QRectF, QState, QStateMachine, Qt)
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from PyQt5.QtGui import QPixmap
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from PyQt5.QtWidgets import (QApplication, QGraphicsScene, QGraphicsView,
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QGraphicsWidget)
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import appchooser_rc
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class Pixmap(QGraphicsWidget):
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clicked = pyqtSignal()
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def __init__(self, pix, parent=None):
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super(Pixmap, self).__init__(parent)
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self.orig = QPixmap(pix)
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self.p = QPixmap(pix)
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def paint(self, painter, option, widget):
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painter.drawPixmap(QPointF(), self.p)
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def mousePressEvent(self, ev):
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self.clicked.emit()
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def setGeometry(self, rect):
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super(Pixmap, self).setGeometry(rect)
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if rect.size().width() > self.orig.size().width():
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self.p = self.orig.scaled(rect.size().toSize())
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else:
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self.p = QPixmap(self.orig)
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def createStates(objects, selectedRect, parent):
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for obj in objects:
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state = QState(parent)
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state.assignProperty(obj, 'geometry', selectedRect)
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parent.addTransition(obj.clicked, state)
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def createAnimations(objects, machine):
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for obj in objects:
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animation = QPropertyAnimation(obj, b'geometry', obj)
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machine.addDefaultAnimation(animation)
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if __name__ == '__main__':
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import sys
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app = QApplication(sys.argv)
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p1 = Pixmap(QPixmap(':/digikam.png'))
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p2 = Pixmap(QPixmap(':/akregator.png'))
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p3 = Pixmap(QPixmap(':/accessories-dictionary.png'))
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p4 = Pixmap(QPixmap(':/k3b.png'))
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p1.setGeometry(QRectF(0.0, 0.0, 64.0, 64.0))
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p2.setGeometry(QRectF(236.0, 0.0, 64.0, 64.0))
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p3.setGeometry(QRectF(236.0, 236.0, 64.0, 64.0))
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p4.setGeometry(QRectF(0.0, 236.0, 64.0, 64.0))
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scene = QGraphicsScene(0, 0, 300, 300)
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scene.setBackgroundBrush(Qt.white)
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scene.addItem(p1)
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scene.addItem(p2)
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scene.addItem(p3)
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scene.addItem(p4)
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window = QGraphicsView(scene)
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window.setFrameStyle(0)
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window.setAlignment(Qt.AlignLeft | Qt.AlignTop)
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window.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
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window.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
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machine = QStateMachine()
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machine.setGlobalRestorePolicy(QStateMachine.RestoreProperties)
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group = QState(machine)
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selectedRect = QRect(86, 86, 128, 128)
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idleState = QState(group)
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group.setInitialState(idleState)
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objects = [p1, p2, p3, p4]
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createStates(objects, selectedRect, group)
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createAnimations(objects, machine)
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machine.setInitialState(group)
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machine.start()
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window.resize(300, 300)
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window.show()
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sys.exit(app.exec_())
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