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264 lines
8.5 KiB
Python
264 lines
8.5 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 (pyqtProperty, pyqtSignal, QEasingCurve, QObject,
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QParallelAnimationGroup, QPointF, QPropertyAnimation, qrand, QRectF,
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QState, QStateMachine, Qt, QTimer)
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from PyQt5.QtGui import (QBrush, QLinearGradient, QPainter, QPainterPath,
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QPixmap)
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from PyQt5.QtWidgets import (QApplication, QGraphicsItem, QGraphicsPixmapItem,
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QGraphicsRectItem, QGraphicsScene, QGraphicsView, QGraphicsWidget,
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QStyle)
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import animatedtiles_rc
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# PyQt doesn't support deriving from more than one wrapped class so we use
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# composition and delegate the property.
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class Pixmap(QObject):
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def __init__(self, pix):
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super(Pixmap, self).__init__()
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self.pixmap_item = QGraphicsPixmapItem(pix)
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self.pixmap_item.setCacheMode(QGraphicsItem.DeviceCoordinateCache)
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def _set_pos(self, pos):
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self.pixmap_item.setPos(pos)
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pos = pyqtProperty(QPointF, fset=_set_pos)
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class Button(QGraphicsWidget):
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pressed = pyqtSignal()
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def __init__(self, pixmap, parent=None):
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super(Button, self).__init__(parent)
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self._pix = pixmap
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self.setAcceptHoverEvents(True)
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self.setCacheMode(QGraphicsItem.DeviceCoordinateCache)
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def boundingRect(self):
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return QRectF(-65, -65, 130, 130)
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def shape(self):
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path = QPainterPath()
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path.addEllipse(self.boundingRect())
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return path
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def paint(self, painter, option, widget):
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down = option.state & QStyle.State_Sunken
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r = self.boundingRect()
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grad = QLinearGradient(r.topLeft(), r.bottomRight())
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if option.state & QStyle.State_MouseOver:
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color_0 = Qt.white
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else:
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color_0 = Qt.lightGray
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color_1 = Qt.darkGray
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if down:
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color_0, color_1 = color_1, color_0
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grad.setColorAt(0, color_0)
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grad.setColorAt(1, color_1)
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painter.setPen(Qt.darkGray)
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painter.setBrush(grad)
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painter.drawEllipse(r)
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color_0 = Qt.darkGray
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color_1 = Qt.lightGray
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if down:
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color_0, color_1 = color_1, color_0
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grad.setColorAt(0, color_0)
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grad.setColorAt(1, color_1)
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painter.setPen(Qt.NoPen)
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painter.setBrush(grad)
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if down:
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painter.translate(2, 2)
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painter.drawEllipse(r.adjusted(5, 5, -5, -5))
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painter.drawPixmap(-self._pix.width() / 2, -self._pix.height() / 2,
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self._pix)
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def mousePressEvent(self, ev):
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self.pressed.emit()
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self.update()
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def mouseReleaseEvent(self, ev):
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self.update()
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class View(QGraphicsView):
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def resizeEvent(self, event):
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super(View, self).resizeEvent(event)
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self.fitInView(self.sceneRect(), Qt.KeepAspectRatio)
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if __name__ == '__main__':
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import sys
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import math
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app = QApplication(sys.argv)
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kineticPix = QPixmap(':/images/kinetic.png')
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bgPix = QPixmap(':/images/Time-For-Lunch-2.jpg')
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scene = QGraphicsScene(-350, -350, 700, 700)
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items = []
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for i in range(64):
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item = Pixmap(kineticPix)
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item.pixmap_item.setOffset(-kineticPix.width() / 2,
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-kineticPix.height() / 2)
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item.pixmap_item.setZValue(i)
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items.append(item)
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scene.addItem(item.pixmap_item)
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# Buttons.
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buttonParent = QGraphicsRectItem()
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ellipseButton = Button(QPixmap(':/images/ellipse.png'), buttonParent)
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figure8Button = Button(QPixmap(':/images/figure8.png'), buttonParent)
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randomButton = Button(QPixmap(':/images/random.png'), buttonParent)
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tiledButton = Button(QPixmap(':/images/tile.png'), buttonParent)
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centeredButton = Button(QPixmap(':/images/centered.png'), buttonParent)
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ellipseButton.setPos(-100, -100)
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figure8Button.setPos(100, -100)
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randomButton.setPos(0, 0)
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tiledButton.setPos(-100, 100)
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centeredButton.setPos(100, 100)
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scene.addItem(buttonParent)
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buttonParent.setScale(0.75)
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buttonParent.setPos(200, 200)
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buttonParent.setZValue(65)
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# States.
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rootState = QState()
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ellipseState = QState(rootState)
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figure8State = QState(rootState)
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randomState = QState(rootState)
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tiledState = QState(rootState)
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centeredState = QState(rootState)
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# Values.
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for i, item in enumerate(items):
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# Ellipse.
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ellipseState.assignProperty(item, 'pos',
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QPointF(math.cos((i / 63.0) * 6.28) * 250,
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math.sin((i / 63.0) * 6.28) * 250))
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# Figure 8.
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figure8State.assignProperty(item, 'pos',
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QPointF(math.sin((i / 63.0) * 6.28) * 250,
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math.sin(((i * 2)/63.0) * 6.28) * 250))
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# Random.
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randomState.assignProperty(item, 'pos',
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QPointF(-250 + qrand() % 500, -250 + qrand() % 500))
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# Tiled.
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tiledState.assignProperty(item, 'pos',
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QPointF(((i % 8) - 4) * kineticPix.width() + kineticPix.width() / 2,
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((i // 8) - 4) * kineticPix.height() + kineticPix.height() / 2))
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# Centered.
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centeredState.assignProperty(item, 'pos', QPointF())
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# Ui.
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view = View(scene)
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view.setWindowTitle("Animated Tiles")
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view.setViewportUpdateMode(QGraphicsView.BoundingRectViewportUpdate)
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view.setBackgroundBrush(QBrush(bgPix))
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view.setCacheMode(QGraphicsView.CacheBackground)
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view.setRenderHints(QPainter.Antialiasing | QPainter.SmoothPixmapTransform)
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view.show()
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states = QStateMachine()
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states.addState(rootState)
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states.setInitialState(rootState)
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rootState.setInitialState(centeredState)
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group = QParallelAnimationGroup()
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for i, item in enumerate(items):
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anim = QPropertyAnimation(item, b'pos')
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anim.setDuration(750 + i * 25)
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anim.setEasingCurve(QEasingCurve.InOutBack)
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group.addAnimation(anim)
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trans = rootState.addTransition(ellipseButton.pressed, ellipseState)
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trans.addAnimation(group)
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trans = rootState.addTransition(figure8Button.pressed, figure8State)
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trans.addAnimation(group)
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trans = rootState.addTransition(randomButton.pressed, randomState)
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trans.addAnimation(group)
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trans = rootState.addTransition(tiledButton.pressed, tiledState)
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trans.addAnimation(group)
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trans = rootState.addTransition(centeredButton.pressed, centeredState)
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trans.addAnimation(group)
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timer = QTimer()
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timer.start(125)
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timer.setSingleShot(True)
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trans = rootState.addTransition(timer.timeout, ellipseState)
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trans.addAnimation(group)
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states.start()
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sys.exit(app.exec_())
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