def viewAnimation(self): t = self.m_animationFrame / (self.m_fps * 0.2) self.m_animationFrame += 1 if t >= 1: self.stopViewAnimation() ec = QtCore.QEasingCurve(QtCore.QEasingCurve.OutExpo) val = ec.valueForProgress(t) self.m_xRot = self.m_xRotStored + (self.m_xRotTarget - self.m_xRotStored) * val self.m_yRot = self.m_yRotStored + (self.m_yRotTarget - self.m_yRotStored) * val self.updateView()
def __init__(self): super(Robot, self).__init__() self.torsoItem = RobotTorso(self) self.headItem = RobotHead(self.torsoItem) self.upperLeftArmItem = RobotLimb(self.torsoItem) self.lowerLeftArmItem = RobotLimb(self.upperLeftArmItem) self.upperRightArmItem = RobotLimb(self.torsoItem) self.lowerRightArmItem = RobotLimb(self.upperRightArmItem) self.upperRightLegItem = RobotLimb(self.torsoItem) self.lowerRightLegItem = RobotLimb(self.upperRightLegItem) self.upperLeftLegItem = RobotLimb(self.torsoItem) self.lowerLeftLegItem = RobotLimb(self.upperLeftLegItem) self.timeline = QtCore.QTimeLine() settings = [ # item position rotation at # x y time 0 / 1 (self.headItem, 0, -18, 20, -20), (self.upperLeftArmItem, -15, -10, 190, 180), (self.lowerLeftArmItem, 30, 0, 50, 10), (self.upperRightArmItem, 15, -10, 300, 310), (self.lowerRightArmItem, 30, 0, 0, -70), (self.upperRightLegItem, 10, 32, 40, 120), (self.lowerRightLegItem, 30, 0, 10, 50), (self.upperLeftLegItem, -10, 32, 150, 80), (self.lowerLeftLegItem, 30, 0, 70, 10), (self.torsoItem, 0, 0, 5, -20) ] self.animations = [] for item, pos_x, pos_y, rotation1, rotation2 in settings: item.setPos(pos_x, pos_y) animation = QtWidgets.QGraphicsItemAnimation() animation.setItem(item) animation.setTimeLine(self.timeline) animation.setRotationAt(0, rotation1) animation.setRotationAt(1, rotation2) self.animations.append(animation) self.animations[0].setScaleAt(1, 1.1, 1.1) self.timeline.setUpdateInterval(1000 / 25) curve = QtCore.QEasingCurve(QtCore.QEasingCurve.SineCurve) self.timeline.setEasingCurve(curve) self.timeline.setLoopCount(0) self.timeline.setDuration(2000) self.timeline.start()
def __init__(self, parent=None): super(Window, self).__init__(parent) self.m_iconSize = QtCore.QSize(64, 64) self.m_scene = QtWidgets.QGraphicsScene() m_ui = Ui_Form() m_ui.setupUi(self) m_ui.easingCurvePicker.setIconSize(self.m_iconSize) m_ui.easingCurvePicker.setMinimumHeight(self.m_iconSize.height() + 50) m_ui.buttonGroup.setId(m_ui.lineRadio, 0) m_ui.buttonGroup.setId(m_ui.circleRadio, 1) dummy = QtCore.QEasingCurve() m_ui.periodSpinBox.setValue(dummy.period()) m_ui.amplitudeSpinBox.setValue(dummy.amplitude()) m_ui.overshootSpinBox.setValue(dummy.overshoot()) m_ui.easingCurvePicker.currentRowChanged.connect(self.curveChanged) m_ui.buttonGroup.idClicked.connect(self.pathChanged) m_ui.periodSpinBox.valueChanged.connect(self.periodChanged) m_ui.amplitudeSpinBox.valueChanged.connect(self.amplitudeChanged) m_ui.overshootSpinBox.valueChanged.connect(self.overshootChanged) self.m_ui = m_ui self.createCurveIcons() pix = QtGui.QPixmap(':/images/qt-logo.png') self.m_item = Pixmap(pix) self.m_scene.addItem(self.m_item.pixmap_item) self.m_ui.graphicsView.setScene(self.m_scene) self.m_anim = Animation(self.m_item, b'pos') self.m_anim.setEasingCurve(QtCore.QEasingCurve.OutBounce) self.m_ui.easingCurvePicker.setCurrentRow(int(QtCore.QEasingCurve.OutBounce)) self.startAnimation()
def createCurveIcons(self): pix = QtGui.QPixmap(self.m_iconSize) painter = QtGui.QPainter() gradient = QtGui.QLinearGradient(0, 0, 0, self.m_iconSize.height()) gradient.setColorAt(0.0, QtGui.QColor(240, 240, 240)) gradient.setColorAt(1.0, QtGui.QColor(224, 224, 224)) brush = QtGui.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 QtCore.QEasingCurve.__dict__.items() if isinstance(c, QtCore.QEasingCurve.Type) \ and c != QtCore.QEasingCurve.Custom \ and c != QtCore.QEasingCurve.NCurveTypes \ and c != QtCore.QEasingCurve.TCBSpline] curve_types.sort(key=lambda ct: ct[1]) painter.begin(pix) for curve_name, curve_type in curve_types: painter.fillRect(QtCore.QRect(QtCore.QPoint(0, 0), self.m_iconSize), brush) curve = QtCore.QEasingCurve(curve_type) painter.setPen(QtGui.QColor(0, 0, 255, 64)) xAxis = self.m_iconSize.height() / 1.5 yAxis = self.m_iconSize.width() / 3.0 painter.drawLine(0, xAxis, self.m_iconSize.width(), xAxis) painter.drawLine(yAxis, 0, yAxis, self.m_iconSize.height()) curveScale = self.m_iconSize.height() / 2.0 painter.setPen(QtCore.Qt.NoPen) # Start point. painter.setBrush(QtCore.Qt.red) start = QtCore.QPoint(yAxis, xAxis - curveScale * curve.valueForProgress(0)) painter.drawRect(start.x() - 1, start.y() - 1, 3, 3) # End point. painter.setBrush(QtCore.Qt.blue) end = QtCore.QPoint(yAxis + curveScale, xAxis - curveScale * curve.valueForProgress(1)) painter.drawRect(end.x() - 1, end.y() - 1, 3, 3) curvePath = QtGui.QPainterPath() curvePath.moveTo(QtCore.QPointF(start)) t = 0.0 while t <= 1.0: to = QtCore.QPointF(yAxis + curveScale * t, xAxis - curveScale * curve.valueForProgress(t)) curvePath.lineTo(to) t += 1.0 / curveScale painter.setRenderHint(QtGui.QPainter.Antialiasing, True) painter.strokePath(curvePath, QtGui.QColor(32, 32, 32)) painter.setRenderHint(QtGui.QPainter.Antialiasing, False) item = QtWidgets.QListWidgetItem() item.setIcon(QtGui.QIcon(pix)) item.setText(curve_name) self.m_ui.easingCurvePicker.addItem(item) painter.end()