DiscreteRectKeyFrame 类

定义

使用离散内插,从上一个关键帧的 Rect 值动画处理到其自身的 ValueAnimates from the Rect value of the previous key frame to its own Value using discrete interpolation.

public ref class DiscreteRectKeyFrame : System::Windows::Media::Animation::RectKeyFrame
public class DiscreteRectKeyFrame : System.Windows.Media.Animation.RectKeyFrame
type DiscreteRectKeyFrame = class
    inherit RectKeyFrame
Public Class DiscreteRectKeyFrame
Inherits RectKeyFrame
继承

注解

此类RectKeyFrameCollection用作与结合RectAnimationUsingKeyFrames , 以对一组关键帧中的Rect属性值进行动画处理。This class is used as part of a RectKeyFrameCollection in conjunction with a RectAnimationUsingKeyFrames to animate a Rect property value along a set of key frames.

关键帧定义其所属的段RectAnimationUsingKeyFramesA key frame defines a segment of the RectAnimationUsingKeyFrames to which it belongs. 每个关键帧都有Value一个目标KeyTime和。Each key frame has a target Value and a KeyTime. 指定应到达关键帧的Value时间。 KeyTimeThe KeyTime specifies the time at which the key frame's Value should be reached. 关键帧将从前一个关键帧的目标值动画处理到其自身的目标值。A key frame animates from the target value of the previous key frame to its own target value. 它在上一个关键帧结束时开始, 并在达到其自己的密钥时间时结束。It starts when the previous key frame ends and ends when its own key time is reached.

离散关键帧 ( DiscreteRectKeyFrame如 create 突然 "跳转") 介于值 (无内插) 之间。Discrete key frames like DiscreteRectKeyFrame create sudden "jumps" between values (no Interpolation). 换而言之, 在到达关键帧的关键时间之后, 动画属性才会更改, 此时动画属性将突然到达目标值。In other words, the animated property does not change until the key frame's key time is reached at which point the animated property goes suddenly to the target value.

构造函数

DiscreteRectKeyFrame()

初始化 DiscreteRectKeyFrame 类的新实例。Initializes a new instance of the DiscreteRectKeyFrame class.

DiscreteRectKeyFrame(Rect)

使用指定的结束值初始化 DiscreteRectKeyFrame 类的新实例。Initializes a new instance of the DiscreteRectKeyFrame class with the specified ending value.

DiscreteRectKeyFrame(Rect, KeyTime)

使用指定的结束值和关键时间初始化 DiscreteRectKeyFrame 类的新实例。Initializes a new instance of the DiscreteRectKeyFrame class with the specified ending value and key time.

属性

CanFreeze

获取一个值,该值指示是否可将对象变为不可修改。Gets a value that indicates whether the object can be made unmodifiable.

(继承自 Freezable)
DependencyObjectType

获取对此实例的 CLRCLR 类型进行包装的 DependencyObjectTypeGets the DependencyObjectType that wraps the CLRCLR type of this instance.

(继承自 DependencyObject)
Dispatcher

获取与此 Dispatcher 关联的 DispatcherObjectGets the Dispatcher this DispatcherObject is associated with.

(继承自 DispatcherObject)
IsFrozen

获取一个值,该值指示对象当前是否可修改。Gets a value that indicates whether the object is currently modifiable.

(继承自 Freezable)
IsSealed

获取一个值,该值指示此实例当前是否为密封的(只读)。Gets a value that indicates whether this instance is currently sealed (read-only).

(继承自 DependencyObject)
KeyTime

获取或设置关键帧的目标 Value 应到达的时间。Gets or sets the time at which the key frame's target Value should be reached.

(继承自 RectKeyFrame)
Value

获取或设置关键帧的目标值。Gets or sets the key frame's target value.

(继承自 RectKeyFrame)

方法

CheckAccess()

确定调用线程是否可以访问此 DispatcherObjectDetermines whether the calling thread has access to this DispatcherObject.

(继承自 DispatcherObject)
ClearValue(DependencyProperty)

清除属性的本地值。Clears the local value of a property. 要清除的属性由 DependencyProperty 标识符指定。The property to be cleared is specified by a DependencyProperty identifier.

(继承自 DependencyObject)
ClearValue(DependencyPropertyKey)

清除只读属性的本地值。Clears the local value of a read-only property. 要清除的属性由 DependencyPropertyKey 指定。The property to be cleared is specified by a DependencyPropertyKey.

(继承自 DependencyObject)
Clone()

创建 Freezable 的可修改克隆,以制作该对象值的深层副本。Creates a modifiable clone of the Freezable, making deep copies of the object's values. 在复制此对象的依赖属性时,此方法会复制表达式(可能不再解析),但不复制动画或其当前值。When copying the object's dependency properties, this method copies expressions (which might no longer resolve) but not animations or their current values.

(继承自 Freezable)
CloneCore(Freezable)

使用基(未经过动画处理的)属性值使该实例成为指定 Freezable 的克隆(深层复制)。Makes the instance a clone (deep copy) of the specified Freezable using base (non-animated) property values.

(继承自 Freezable)
CloneCurrentValue()

使用 Freezable 的当前值创建其可修改复本(深层副本)。Creates a modifiable clone (deep copy) of the Freezable using its current values.

(继承自 Freezable)
CloneCurrentValueCore(Freezable)

使用当前属性值使该实例成为指定 Freezable 的可修改克隆(深层复制)。Makes the instance a modifiable clone (deep copy) of the specified Freezable using current property values.

(继承自 Freezable)
CoerceValue(DependencyProperty)

对指定依赖属性的值进行强制。Coerces the value of the specified dependency property. 通过对调用方 DependencyObject 上存在的依赖属性的属性元数据中所指定的任何 CoerceValueCallback 函数进行调用来完成此操作。This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject.

(继承自 DependencyObject)
CreateInstance()

初始化 Freezable 类的新实例。Initializes a new instance of the Freezable class.

(继承自 Freezable)
CreateInstanceCore()

创建 DiscreteRectKeyFrame 的新实例。Creates a new instance of DiscreteRectKeyFrame.

Equals(Object)

确定提供的 DependencyObject 是否等效于当前 DependencyObjectDetermines whether a provided DependencyObject is equivalent to the current DependencyObject.

(继承自 DependencyObject)
Freeze()

使当前对象不可修改,并且将其 IsFrozen 属性设置为 trueMakes the current object unmodifiable and sets its IsFrozen property to true.

(继承自 Freezable)
FreezeCore(Boolean)

使 Freezable 对象变为不可修改或测试是否可将其变为不可修改。Makes the Freezable object unmodifiable or tests whether it can be made unmodifiable.

(继承自 Freezable)
GetAsFrozen()

使用基(未经过动画处理的)属性值创建 Freezable 的冻结副本。Creates a frozen copy of the Freezable, using base (non-animated) property values. 由于副本已冻结,因此将通过引用复制任何冻结的子对象。Because the copy is frozen, any frozen sub-objects are copied by reference.

(继承自 Freezable)
GetAsFrozenCore(Freezable)

让该实例成为指定的 Freezable 的冻结克隆,前者使用基(非动画的)属性值。Makes the instance a frozen clone of the specified Freezable using base (non-animated) property values.

(继承自 Freezable)
GetCurrentValueAsFrozen()

使用当前属性值创建 Freezable 的冻结副本。Creates a frozen copy of the Freezable using current property values. 由于副本已冻结,因此将通过引用复制任何冻结的子对象。Because the copy is frozen, any frozen sub-objects are copied by reference.

(继承自 Freezable)
GetCurrentValueAsFrozenCore(Freezable)

使当前实例成为指定的 Freezable 的冻结复本。Makes the current instance a frozen clone of the specified Freezable. 如果对象具有动画依赖属性,则复制其当前的动画值。If the object has animated dependency properties, their current animated values are copied.

(继承自 Freezable)
GetHashCode()

获取此 DependencyObject 的哈希代码。Gets a hash code for this DependencyObject.

(继承自 DependencyObject)
GetLocalValueEnumerator()

创建一个专用的枚举数,用于确定哪些依赖项属性在此 DependencyObject 上具有以本地方式设置的值。Creates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject.

(继承自 DependencyObject)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
GetValue(DependencyProperty)

DependencyObject 的此实例返回依赖属性的当前有效值。Returns the current effective value of a dependency property on this instance of a DependencyObject.

(继承自 DependencyObject)
InterpolateValue(Rect, Double)

返回特定关键帧在提供的进度增量处的内插值。Returns the interpolated value of a specific key frame at the progress increment provided.

(继承自 RectKeyFrame)
InterpolateValueCore(Rect, Double)

使用离散内插可在前一个关键帧值和当前关键帧的值之间进行切换。Uses discrete interpolation to transition between the previous key frame value and the value of the current key frame.

InvalidateProperty(DependencyProperty)

重新评估指定依赖属性的有效值。Re-evaluates the effective value for the specified dependency property.

(继承自 DependencyObject)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
OnChanged()

修改当前 Freezable 对象时调用。Called when the current Freezable object is modified.

(继承自 Freezable)
OnFreezablePropertyChanged(DependencyObject, DependencyObject)

确保为刚刚设置的 DependencyObjectType 数据成员建立适当的上下文指针。Ensures that appropriate context pointers are established for a DependencyObjectType data member that has just been set.

(继承自 Freezable)
OnFreezablePropertyChanged(DependencyObject, DependencyObject, DependencyProperty)

此成员支持 Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) 基础结构,但不能在代码中直接使用。This member supports the Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code.

(继承自 Freezable)
OnPropertyChanged(DependencyPropertyChangedEventArgs)

重写 OnPropertyChanged(DependencyPropertyChangedEventArgs)DependencyObject 实现,以同时调用任何响应类型 Freezable 不断变化的依赖属性的 Changed 处理程序。Overrides the DependencyObject implementation of OnPropertyChanged(DependencyPropertyChangedEventArgs) to also invoke any Changed handlers in response to a changing dependency property of type Freezable.

(继承自 Freezable)
ReadLocalValue(DependencyProperty)

如果存在,则返回依赖属性的本地值。Returns the local value of a dependency property, if it exists.

(继承自 DependencyObject)
ReadPreamble()

确保正在从有效的线程访问 FreezableEnsures that the Freezable is being accessed from a valid thread. Freezable 的继承者必须在任何 API 一开始读取不属于依赖项对象的数据成员时调用此方法。Inheritors of Freezable must call this method at the beginning of any API that reads data members that are not dependency properties.

(继承自 Freezable)
SetCurrentValue(DependencyProperty, Object)

设置依赖属性的值而不更改其值源。Sets the value of a dependency property without changing its value source.

(继承自 DependencyObject)
SetValue(DependencyProperty, Object)

设置依赖属性的本地值,该值由其依赖属性标识符指定。Sets the local value of a dependency property, specified by its dependency property identifier.

(继承自 DependencyObject)
SetValue(DependencyPropertyKey, Object)

设置一个只读依赖属性的本地值,该值由依赖属性的 DependencyPropertyKey 标识符指定。Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property.

(继承自 DependencyObject)
ShouldSerializeProperty(DependencyProperty)

返回一个值,该值指示序列化进程是否应序列化所提供的依赖属性的值。Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property.

(继承自 DependencyObject)
ToString()

返回一个表示当前对象的 string。Returns a string that represents the current object.

(继承自 Object)
VerifyAccess()

强制调用线程具有此 DispatcherObject 的访问权限。Enforces that the calling thread has access to this DispatcherObject.

(继承自 DispatcherObject)
WritePostscript()

引发 FreezableChanged 事件并调用其 OnChanged() 方法。Raises the Changed event for the Freezable and invokes its OnChanged() method. Freezable 派生的类应在修改的类成员不存储为依赖属性的任何 API 的末尾调用此方法。Classes that derive from Freezable should call this method at the end of any API that modifies class members that are not stored as dependency properties.

(继承自 Freezable)
WritePreamble()

验证 Freezable 是否未被冻结,并且是否正在从有效的线程上下文中访问它。Verifies that the Freezable is not frozen and that it is being accessed from a valid threading context. Freezable 的继承项应当在任何 API 一开始写入不属于依赖项属性的数据成员时调用此方法。Freezable inheritors should call this method at the beginning of any API that writes to data members that are not dependency properties.

(继承自 Freezable)

事件

Changed

在修改 Freezable 或其包含的对象时发生。Occurs when the Freezable or an object it contains is modified.

(继承自 Freezable)

显式界面实现

IKeyFrame.Value

获取或设置与 KeyTime 实例关联的值。Gets or sets the value associated with a KeyTime instance.

(继承自 RectKeyFrame)

适用于

另请参阅