#!/usr/bin/env python ############################################################################# ## ## Copyright (C) 2010 Riverbank Computing Limited. ## Copyright (C) 2016 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." ## ## $QT_END_LICENSE$ ## ############################################################################# from PySide2 import QtCore, QtGui, QtWidgets import animatedtiles_rc # Deriving from more than one wrapped class is not supported, so we use # composition and delegate the property. class Pixmap(QtCore.QObject): def __init__(self, pix): super(Pixmap, self).__init__() self.pixmap_item = QtWidgets.QGraphicsPixmapItem(pix) self.pixmap_item.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache) def set_pos(self, pos): self.pixmap_item.setPos(pos) def get_pos(self): return self.pixmap_item.pos() pos = QtCore.Property(QtCore.QPointF, get_pos, set_pos) class Button(QtWidgets.QGraphicsWidget): pressed = QtCore.Signal() def __init__(self, pixmap, parent=None): super(Button, self).__init__(parent) self._pix = pixmap self.setAcceptHoverEvents(True) self.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache) def boundingRect(self): return QtCore.QRectF(-65, -65, 130, 130) def shape(self): path = QtGui.QPainterPath() path.addEllipse(self.boundingRect()) return path def paint(self, painter, option, widget): down = option.state & QtWidgets.QStyle.State_Sunken r = self.boundingRect() grad = QtGui.QLinearGradient(r.topLeft(), r.bottomRight()) if option.state & QtWidgets.QStyle.State_MouseOver: color_0 = QtCore.Qt.white else: color_0 = QtCore.Qt.lightGray color_1 = QtCore.Qt.darkGray if down: color_0, color_1 = color_1, color_0 grad.setColorAt(0, color_0) grad.setColorAt(1, color_1) painter.setPen(QtCore.Qt.darkGray) painter.setBrush(grad) painter.drawEllipse(r) color_0 = QtCore.Qt.darkGray color_1 = QtCore.Qt.lightGray if down: color_0, color_1 = color_1, color_0 grad.setColorAt(0, color_0) grad.setColorAt(1, color_1) painter.setPen(QtCore.Qt.NoPen) painter.setBrush(grad) if down: painter.translate(2, 2) painter.drawEllipse(r.adjusted(5, 5, -5, -5)) painter.drawPixmap(-self._pix.width() / 2, -self._pix.height() / 2, self._pix) def mousePressEvent(self, ev): self.pressed.emit() self.update() def mouseReleaseEvent(self, ev): self.update() class View(QtWidgets.QGraphicsView): def resizeEvent(self, event): super(View, self).resizeEvent(event) self.fitInView(self.sceneRect(), QtCore.Qt.KeepAspectRatio) if __name__ == '__main__': import sys import math app = QtWidgets.QApplication(sys.argv) kineticPix = QtGui.QPixmap(':/images/kinetic.png') bgPix = QtGui.QPixmap(':/images/Time-For-Lunch-2.jpg') scene = QtWidgets.QGraphicsScene(-350, -350, 700, 700) items = [] for i in range(64): item = Pixmap(kineticPix) item.pixmap_item.setOffset(-kineticPix.width() / 2, -kineticPix.height() / 2) item.pixmap_item.setZValue(i) items.append(item) scene.addItem(item.pixmap_item) # Buttons. buttonParent = QtWidgets.QGraphicsRectItem() ellipseButton = Button(QtGui.QPixmap(':/images/ellipse.png'), buttonParent) figure8Button = Button(QtGui.QPixmap(':/images/figure8.png'), buttonParent) randomButton = Button(QtGui.QPixmap(':/images/random.png'), buttonParent) tiledButton = Button(QtGui.QPixmap(':/images/tile.png'), buttonParent) centeredButton = Button(QtGui.QPixmap(':/images/centered.png'), buttonParent) ellipseButton.setPos(-100, -100) figure8Button.setPos(100, -100) randomButton.setPos(0, 0) tiledButton.setPos(-100, 100) centeredButton.setPos(100, 100) scene.addItem(buttonParent) buttonParent.setTransform(QtGui.QTransform().scale(0.75, 0.75)) buttonParent.setPos(200, 200) buttonParent.setZValue(65) # States. rootState = QtCore.QState() ellipseState = QtCore.QState(rootState) figure8State = QtCore.QState(rootState) randomState = QtCore.QState(rootState) tiledState = QtCore.QState(rootState) centeredState = QtCore.QState(rootState) # Values. for i, item in enumerate(items): # Ellipse. ellipseState.assignProperty(item, 'pos', QtCore.QPointF(math.cos((i / 63.0) * 6.28) * 250, math.sin((i / 63.0) * 6.28) * 250)) # Figure 8. figure8State.assignProperty(item, 'pos', QtCore.QPointF(math.sin((i / 63.0) * 6.28) * 250, math.sin(((i * 2)/63.0) * 6.28) * 250)) # Random. randomState.assignProperty(item, 'pos', QtCore.QPointF(-250 + QtCore.qrand() % 500, -250 + QtCore.qrand() % 500)) # Tiled. tiledState.assignProperty(item, 'pos', QtCore.QPointF(((i % 8) - 4) * kineticPix.width() + kineticPix.width() / 2, ((i // 8) - 4) * kineticPix.height() + kineticPix.height() / 2)) # Centered. centeredState.assignProperty(item, 'pos', QtCore.QPointF()) # Ui. view = View(scene) view.setWindowTitle("Animated Tiles") view.setViewportUpdateMode(QtWidgets.QGraphicsView.BoundingRectViewportUpdate) view.setBackgroundBrush(QtGui.QBrush(bgPix)) view.setCacheMode(QtWidgets.QGraphicsView.CacheBackground) view.setRenderHints( QtGui.QPainter.Antialiasing | QtGui.QPainter.SmoothPixmapTransform) view.show() states = QtCore.QStateMachine() states.addState(rootState) states.setInitialState(rootState) rootState.setInitialState(centeredState) group = QtCore.QParallelAnimationGroup() for i, item in enumerate(items): anim = QtCore.QPropertyAnimation(item, b'pos') anim.setDuration(750 + i * 25) anim.setEasingCurve(QtCore.QEasingCurve.InOutBack) group.addAnimation(anim) trans = rootState.addTransition(ellipseButton.pressed, ellipseState) trans.addAnimation(group) trans = rootState.addTransition(figure8Button.pressed, figure8State) trans.addAnimation(group) trans = rootState.addTransition(randomButton.pressed, randomState) trans.addAnimation(group) trans = rootState.addTransition(tiledButton.pressed, tiledState) trans.addAnimation(group) trans = rootState.addTransition(centeredButton.pressed, centeredState) trans.addAnimation(group) timer = QtCore.QTimer() timer.start(125) timer.setSingleShot(True) trans = rootState.addTransition(timer.timeout, ellipseState) trans.addAnimation(group) states.start() sys.exit(app.exec_())