Python PyQt5.QtCore.QPropertyAnimation() Examples

def getDetailInfo(self):
        """点击后进行动画效果的: 显示某歌曲的详细信息。"""
        self.shortInfo.hide()
        self.detailInfo.show()

        self.showDetail = QPropertyAnimation(self, b"geometry")

        x = self.pos().x()
        y = self.pos().y()

        self.showDetail.setStartValue(QRect(x, y, self.width(), self.height()))
        # 获取顶层父窗口的长度。
        self.showDetail.setEndValue(QRect(0, self.grandparent.header.height()+3, self.grandparent.width(), self.grandparent.mainContent.height()))
        self.showDetail.setDuration(300)
        self.showDetail.setEasingCurve(QEasingCurve.InBack)

        self.showDetail.start(QAbstractAnimation.DeleteWhenStopped)
        # 将该组件显示在最前，默认会嵌入到父组件里面。
        self.raise_()

        self.setDetailInfo() 

def getShortInfo(self):
        """返回到原来的缩略图信息。"""
        self.detailInfo.hide()
        self.showShort = QPropertyAnimation(self, b"geometry")
        
        x = self.pos().x()
        y = self.pos().y()
        
        self.showShort.setStartValue(QRect(0, self.grandparent.header.height(), self.grandparent.width(), self.grandparent.mainContent.height()))
        self.showShort.setEndValue(QRect(0, self.grandparent.height()-64-self.parent.height(), self.grandparent.navigation.width(), 64))
        self.showShort.setDuration(300)
        self.showShort.setEasingCurve(QEasingCurve.InBack)
        
        self.showShort.start(QAbstractAnimation.DeleteWhenStopped)

        self.shortInfo.show()
        self.raise_() 

def __init__(self, parent):
        """
        Create property animations, sets the opacity to zero initially.

        :param parent:
        """
        super().__init__()
        if isinstance(parent, QtWidgets.QGraphicsItem):
            # create opacity effect
            self.effect = QtWidgets.QGraphicsOpacityEffect()
            self.effect.setOpacity(0)
            parent.setGraphicsEffect(self.effect)
            self.fade = QtCore.QPropertyAnimation(self.effect, 'opacity'.encode())  # encode is utf-8 by default
        elif isinstance(parent, QtWidgets.QWidget):
            parent.setWindowOpacity(0)
            self.fade = QtCore.QPropertyAnimation(parent, 'windowOpacity'.encode())  # encode is utf-8 by default
        else:
            raise RuntimeError('Type of parameter must be QtWidgets.QGraphicsItem or QtWidgets.QWidget.')

        # set start and stop value
        self.fade.setStartValue(0)
        self.fade.setEndValue(1)
        self.fade.finished.connect(self.finished)

        self.forward = True 

def __init__(self, y_pos, up=True):
        super().__init__()
        self.up = up
        self.y_pos = y_pos

        # For fun, let's blur the object
        blur = qtw.QGraphicsBlurEffect()
        blur.setBlurRadius(10)
        blur.setBlurHints(
            qtw.QGraphicsBlurEffect.AnimationHint)
        self.setGraphicsEffect(blur)

        # Animate the object
        self.animation = qtc.QPropertyAnimation(self, b'y')
        self.animation.setStartValue(y_pos)
        end = 0 if up else SCREEN_HEIGHT
        self.animation.setEndValue(end)
        self.animation.setDuration(1000)
        self.yChanged.connect(self.check_collision) 

def __init__(self, *args, stretch=1 / 3, direction=0, widget=None, **kwargs):
        super(CDrawer, self).__init__(*args, **kwargs)
        self.setWindowFlags(self.windowFlags(
        ) | Qt.FramelessWindowHint | Qt.Popup | Qt.NoDropShadowWindowHint)
        self.setAttribute(Qt.WA_StyledBackground, True)
        self.setAttribute(Qt.WA_TranslucentBackground, True)
        # 进入动画
        self.animIn = QPropertyAnimation(
            self, duration=500, easingCurve=QEasingCurve.OutCubic)
        self.animIn.setPropertyName(b'pos')
        # 离开动画
        self.animOut = QPropertyAnimation(
            self, duration=500, finished=self.onAnimOutEnd,
            easingCurve=QEasingCurve.OutCubic)
        self.animOut.setPropertyName(b'pos')
        self.animOut.setDuration(500)
        self.setStretch(stretch)        # 占比
        self.direction = direction      # 方向
        # 半透明背景
        self.alphaWidget = QWidget(
            self, objectName='CDrawer_alphaWidget',
            styleSheet='#CDrawer_alphaWidget{background:rgba(55,55,55,100);}')
        self.alphaWidget.setAttribute(Qt.WA_TransparentForMouseEvents, True)
        self.setWidget(widget)          # 子控件 

def setFadeIn(self, v):
        """
        Set the screen to use a fade-in animation.

        Args:
            v (bool): If True, run the fade-in animation when its trigger is
                received. False will disable the animation.
        """
        if not v:
            self.animations.pop(FADE_IN_ANIMATION, None)
            return
        effect = QtWidgets.QGraphicsOpacityEffect(self)
        self.animations[FADE_IN_ANIMATION] = a = QtCore.QPropertyAnimation(
            effect, b"opacity"
        )
        a.setDuration(550)
        a.setStartValue(0)
        a.setEndValue(1)
        a.setEasingCurve(QtCore.QEasingCurve.OutQuad)
        self.setGraphicsEffect(effect) 

def decrypt_content(self, data, password):
        self.progress = QProgressDialog("Trying to decrypt...", None, 0, 100)
        self.progress.show()
        self.animation = QPropertyAnimation(self.progress, b"value")
        self.animation.setDuration(5000)  # XXX
        self.animation.setStartValue(0)
        self.animation.setEndValue(99)
        self.animation.start()
        self.crypter = Crypter(data, password.encode())
        self.crypter_thread = QThread()
        self.crypter.moveToThread(self.crypter_thread)
        self.crypter.succeeded.connect(self.animation.stop)
        self.crypter.succeeded.connect(self.progress.close)
        self.crypter.succeeded.connect(self.on_decryption_succeeded)
        self.crypter.failed.connect(self.animation.stop)
        self.crypter.failed.connect(self.progress.close)
        self.crypter.failed.connect(self.on_decryption_failed)
        self.crypter_thread.started.connect(self.crypter.decrypt)
        self.crypter_thread.start() 

def __init__(
        self, callback,
    ):
        """
        Args:
            callback func(bool): The callback function will receive the current
                state after it is changed due to a click.
        """
        super().__init__()
        self.callback = callback
        self.onBrush = QtGui.QBrush(QtGui.QColor("#569167"))
        self.slotBrush = QtGui.QBrush(QtGui.QColor("#999999"))
        self.switchBrush = self.slotBrush
        self.disabledBrush = QtGui.QBrush(QtGui.QColor("#666666"))
        self.on = False
        self.fullHeight = 18
        self.halfHeight = self.xPos = self.fullHeight / 2
        self.fullWidth = 34
        self.setFixedWidth(self.fullWidth)
        self.slotMargin = 3
        self.slotHeight = self.fullHeight - 2 * self.slotMargin
        self.travel = self.fullWidth - self.fullHeight
        self.slotRect = QtCore.QRect(
            self.slotMargin,
            self.slotMargin,
            self.fullWidth - 2 * self.slotMargin,
            self.slotHeight,
        )
        self.animation = QtCore.QPropertyAnimation(self, b"pqProp", self)
        self.animation.setDuration(120)
        self.setCursor(QtCore.Qt.PointingHandCursor) 

def __init__(self, *args, **kwargs):
        super(ZoomButton, self).__init__(*args, **kwargs)
        self._animation = QPropertyAnimation(
            self, b'geometry', self, duration=200) 

def __init__(self, color, *args, **kwargs):
        super(AnimationShadowEffect, self).__init__(*args, **kwargs)
        self.setColor(color)
        self.setOffset(0, 0)
        self.setBlurRadius(0)
        self._radius = 0
        self.animation = QPropertyAnimation(self)
        self.animation.setTargetObject(self)
        self.animation.setDuration(2000)  # 一次循环时间
        self.animation.setLoopCount(-1)  # 永久循环
        self.animation.setPropertyName(b'radius')
        # 插入值
        self.animation.setKeyValueAt(0, 1)
        self.animation.setKeyValueAt(0.5, 30)
        self.animation.setKeyValueAt(1, 1) 

def doShakeWindow(self, target):
        """窗口抖动动画
        :param target:        目标控件
        """
        if hasattr(target, '_shake_animation'):
            # 如果已经有该对象则跳过
            return

        animation = QPropertyAnimation(target, b'pos', target)
        target._shake_animation = animation
        animation.finished.connect(lambda: delattr(target, '_shake_animation'))

        pos = target.pos()
        x, y = pos.x(), pos.y()

        animation.setDuration(200)
        animation.setLoopCount(2)
        animation.setKeyValueAt(0, QPoint(x, y))
        animation.setKeyValueAt(0.09, QPoint(x + 2, y - 2))
        animation.setKeyValueAt(0.18, QPoint(x + 4, y - 4))
        animation.setKeyValueAt(0.27, QPoint(x + 2, y - 6))
        animation.setKeyValueAt(0.36, QPoint(x + 0, y - 8))
        animation.setKeyValueAt(0.45, QPoint(x - 2, y - 10))
        animation.setKeyValueAt(0.54, QPoint(x - 4, y - 8))
        animation.setKeyValueAt(0.63, QPoint(x - 6, y - 6))
        animation.setKeyValueAt(0.72, QPoint(x - 8, y - 4))
        animation.setKeyValueAt(0.81, QPoint(x - 6, y - 2))
        animation.setKeyValueAt(0.90, QPoint(x - 4, y - 0))
        animation.setKeyValueAt(0.99, QPoint(x - 2, y + 2))
        animation.setEndValue(QPoint(x, y))

        animation.start(animation.DeleteWhenStopped) 

def __init__(self, *args, **kwargs):
        super(Window, self).__init__(*args, **kwargs)
        self.resize(400, 400)
        layout = QVBoxLayout(self)
        layout.addWidget(QPushButton('退出', self, clicked=self.doClose))

        # 窗口透明度动画类
        self.animation = QPropertyAnimation(self, b'windowOpacity')
        self.animation.setDuration(1000)  # 持续时间1秒

        # 执行淡入
        self.doShow() 

def initAnimation(self):
        # 按钮动画
        self._animation = QPropertyAnimation(
            self._contextMenu, b'geometry', self,
            easingCurve=QEasingCurve.Linear, duration=300)
        # easingCurve 修改该变量可以实现不同的效果 

def __init__(self, *args, **kwargs):
        super(PushButtonFont, self).__init__(*args, **kwargs)
        self.fontSize = self.font().pointSize() * 2
        self._rotateAnimationStarted = False
        self._rotateAnimation = QPropertyAnimation(self)
        self._rotateAnimation.setTargetObject(self)
        self._rotateAnimation.setStartValue(1)
        self._rotateAnimation.setEndValue(12)
        self._rotateAnimation.setDuration(1000)
        self._rotateAnimation.setLoopCount(-1)  # 无限循环
        self._rotateAnimation.valueChanged.connect(self.update)
        self.clicked.connect(self._onClick) 

def _decrypt_content(self, data, password):
        logging.debug("Trying to decrypt %s...", self.filepath)
        self.progress = QProgressDialog(
            "Trying to decrypt {}...".format(os.path.basename(self.filepath)),
            None,
            0,
            100,
        )
        self.progress.show()
        self.animation = QPropertyAnimation(self.progress, b"value")
        self.animation.setDuration(6000)  # XXX
        self.animation.setStartValue(0)
        self.animation.setEndValue(99)
        self.animation.start()
        self.crypter = Crypter(data, password.encode())
        self.crypter_thread = QThread()
        self.crypter.moveToThread(self.crypter_thread)
        self.crypter.succeeded.connect(self.animation.stop)
        self.crypter.succeeded.connect(self.progress.close)
        self.crypter.succeeded.connect(self._on_decryption_succeeded)
        self.crypter.failed.connect(self.animation.stop)
        self.crypter.failed.connect(self.progress.close)
        self.crypter.failed.connect(self._on_decryption_failed)
        self.crypter_thread.started.connect(self.crypter.decrypt)
        self.crypter_thread.start() 

def toggle_direction(self):
        if self.animation.direction() == qtc.QPropertyAnimation.Forward:
            self.left()
        else:
            self.right() 

def setOffset(self, o):
        """
        Setter for QPropertyAnimation.
        """
        self.xPos = o
        self.update() 

def getOffset(self):
        """
        Getter for QPropertyAnimation.
        """
        return self.xPos 

def doAnimation_1(self):
        self.anim = QPropertyAnimation(self.frame, b"geometry")
        self.anim.setDuration(1000)
        self.anim.setStartValue(QRect(0, 0, 100, 100))
        self.anim.setEndValue(QRect(300, 0, 100, 100))

        self.anim.finished.connect(self.doAnimation_2)
 
        self.anim.start() 

def doAnimation_2(self):
        self.anim = QPropertyAnimation(self.frame, b"geometry")
        self.anim.setDuration(1000)
        self.anim.setStartValue(QRect(300, 0, 100, 100))
        self.anim.setEndValue(QRect(300, 300, 100, 100))

        self.anim.finished.connect(self.doAnimation_3)
 
        self.anim.start() 

def doAnimation_3(self):
        self.anim = QPropertyAnimation(self.frame, b"geometry")
        self.anim.setDuration(1000)
        self.anim.setStartValue(QRect(300, 300, 100, 100))
        self.anim.setEndValue(QRect(0, 300, 100, 100))

        self.anim.finished.connect(self.doAnimation_4)
 
        self.anim.start() 

def doAnimation_4(self):
        self.anim = QPropertyAnimation(self.frame, b"geometry")
        self.anim.setDuration(1000)
        self.anim.setStartValue(QRect(0, 300, 100, 100))
        self.anim.setEndValue(QRect(0, 0, 100, 100))

        self.anim.finished.connect(self.doAnimation_1)
 
        self.anim.start() 

def __init__(self, title="", parent=None):
        super(CollapsibleBox, self).__init__(parent)

        self.toggle_button = QtWidgets.QToolButton(
            text=title, checkable=True, checked=False
        )
        self.toggle_button.setStyleSheet("QToolButton { border: none; }")
        self.toggle_button.setToolButtonStyle(QtCore.Qt.ToolButtonTextBesideIcon)
        self.toggle_button.setArrowType(QtCore.Qt.RightArrow)
        self.toggle_button.pressed.connect(self.on_pressed)

        self.toggle_animation = QtCore.QParallelAnimationGroup(self)

        self.content_area = QtWidgets.QScrollArea(maximumHeight=0, minimumHeight=0)
        self.content_area.setSizePolicy(
            QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed
        )
        self.content_area.setFrameShape(QtWidgets.QFrame.NoFrame)

        lay = QtWidgets.QVBoxLayout(self)
        lay.setSpacing(0)
        lay.setContentsMargins(0, 0, 0, 0)
        lay.addWidget(self.toggle_button)
        lay.addWidget(self.content_area)

        self.toggle_animation.addAnimation(
            QtCore.QPropertyAnimation(self, b"minimumHeight")
        )
        self.toggle_animation.addAnimation(
            QtCore.QPropertyAnimation(self, b"maximumHeight")
        )
        self.toggle_animation.addAnimation(
            QtCore.QPropertyAnimation(self.content_area, b"maximumHeight")
        ) 

def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.mover.setY(1)
            
            if event.pos().x() < Frame.VALOR / 2:
                self.mover.setX(Frame.MIN_VALOR)
            elif event.pos().x() > Frame.VALOR / 2:
                self.mover.setX(Frame.MAX_VALOR - self.parent.button.width())

            self.animacion = QPropertyAnimation(self.parent.button, b"pos")
            self.animacion.setDuration(150)
            self.animacion.setEndValue(self.mover)
            self.animacion.valueChanged.connect(self.actualizarEstado)
            self.animacion.finished.connect(self.emitirEstado)
            self.animacion.start(QAbstractAnimation.DeleteWhenStopped) 

def _perform_move(self, a, pos):
        from PyQt5.QtCore import QPropertyAnimation
        # create animation for this move operation
        anim = QPropertyAnimation(a, b'pos')
        anim.setDuration(200)
        anim.setEndValue(pos)
        anim.start()
        # the QPropertyAnimation object must outlive this method, so we attach it to this instance
        # TODO we should really collect it afterwards, perhaps with a handler for the finished() signal...
        self.animations.append(anim) 

def _perform_swap(self, a, b):
        from PyQt5.QtCore import QPointF, QPropertyAnimation

        elt_a = self.elements[a]
        elt_b = self.elements[b]
        # update positions
        pos_a = elt_a.pos
        pos_b = elt_b.pos

        # animate the exchange: move in an arc above/below a point halfway between
        pos_between = (pos_a + pos_b) / 2
        pos_above = QPointF(pos_between.x(), -10)
        pos_below = QPointF(pos_between.x(), 50)
        anim_a = QPropertyAnimation(self.elements[a], b'pos')
        anim_b = QPropertyAnimation(self.elements[b], b'pos')
        anim_a.setDuration(400)
        anim_b.setDuration(400)
        anim_a.setKeyValueAt(0.5, pos_above)
        anim_b.setKeyValueAt(0.5, pos_below)
        anim_a.setKeyValueAt(1, pos_b)
        anim_b.setKeyValueAt(1, pos_a)
        anim_a.start()
        anim_b.start()
        self.animations.append(anim_a)
        self.animations.append(anim_b)

        # update elements list
        self.elements[a] = elt_b
        self.elements[b] = elt_a 

def __init__(self, main_window, notes_only, contentView, parent=None):
        super(PliantDockWidget, self).__init__(parent)
        self.main_window = main_window
        self.notes_only = notes_only
        self.contentView = contentView
        self.current_annotation = None
        self.parent = parent

        # Models
        # The following models belong to the sideDock
        # bookmarkModel, bookmarkProxyModel
        # annotationModel
        # searchResultsModel
        self.bookmarkModel = None
        self.bookmarkProxyModel = None
        self.annotationModel = None
        self.searchResultsModel = None

        # References
        # All widgets belong to these
        self.bookmarks = None
        self.annotations = None
        self.search = None

        # Widgets
        # Except this one
        self.sideDockTabWidget = None

        # Animate appearance
        self.animation = QtCore.QPropertyAnimation(self, b'windowOpacity')
        self.animation.setStartValue(0)
        self.animation.setEndValue(1)
        self.animation.setDuration(200) 

def showTip(self, text, color='#20c3ff'):
        if self.tipLabel is not None:
            self.tipLabel.show()
            self.tipLabel.setStyleSheet(
                "QLabel{background: %s;border:3px; color: #FFFFFF; border-radius: 5px}" % color)
            self.tipLabel.setText(text)
            eff = QGraphicsOpacityEffect(self)
            self.tipLabel.setGraphicsEffect(eff)
            self.animate = QPropertyAnimation(eff, "opacity")
            self.animate.setDuration(2000)
            self.animate.setStartValue(0.8)
            self.animate.setEndValue(0)
            self.animate.setEasingCurve(QEasingCurve.InCubic)
            self.animate.finished.connect(lambda: self.tipLabel.hide())
            self.animate.start() 

def mouseReleaseEvent(self, event):  # pylint: disable=invalid-name
        super().mouseReleaseEvent(event)
        if event.button() == Qt.LeftButton:
            anim = QPropertyAnimation(self, b"offset", self)
            anim.setDuration(120)
            anim.setStartValue(self.offset)
            anim.setEndValue(self._end_offset[self.isChecked()]())
            anim.start() 

def change_show_input_cookie(self):
        row_c = 4 if is_windows else 3
        if self.form.rowCount() < row_c:
            self.org_height = self.height()
            self.form.addRow(self.cookie_lb, self.cookie_ed)
            self.show_input_cookie_btn.setText("隐藏Cookie输入框")
            self.change_height = None
            self.adjustSize()
        else:
            if not self.change_height:
                self.change_height = self.height()
            if self.cookie_ed.isVisible():
                self.cookie_lb.setVisible(False)
                self.cookie_ed.setVisible(False)
                self.show_input_cookie_btn.setText("显示Cookie输入框")
                start_height, end_height = self.change_height, self.org_height
            else:
                self.cookie_lb.setVisible(True)
                self.cookie_ed.setVisible(True)
                self.show_input_cookie_btn.setText("隐藏Cookie输入框")
                start_height, end_height = self.org_height, self.change_height
            gm = self.geometry()
            x, y = gm.x(), gm.y()
            wd = self.width()
            self.animation = QPropertyAnimation(self, b'geometry')
            self.animation.setDuration(400)
            self.animation.setStartValue(QRect(x, y, wd, start_height))
            self.animation.setEndValue(QRect(x, y, wd, end_height))
            self.animation.start()