Added NewTransitionAnimation, NewAnimation

CHANGELOG.md

@@ -28,11 +28,12 @@
     NewViewFilter function -> NewFilterProperty
     Animation interface -> AnimationProperty
     AnimationTag constant -> Animation
+    NewAnimation function -> NewAnimationProperty
 
 * Added functions: NewBounds, NewEllipticRadius, NewRadii, NewLinearGradient, NewCircleRadialGradient,
 NewEllipseRadialGradient, GetPushTransform, GetPushDuration, GetPushTiming, IsMoveToFrontAnimation,
 GetBackground, GetMask, GetBackgroundClip,GetBackgroundOrigin, GetMaskClip, GetMaskOrigin, NewColumnSeparator,
-NewClipShapeProperty.
+NewClipShapeProperty, NewTransitionAnimation, NewAnimation.
 
 * Added SetConicGradientFillStyle and SetConicGradientStrokeStyle methods to Canvas interface.
 

README-ru.md

@@ -5043,7 +5043,7 @@ onNo или onCancel (если она не nil).
 Для задания параметров анимации используется интерфейс AnimationProperty. Он расширяет интерфейс Properties.
 Интерфейс создается с помощью функции:
 
-	func NewAnimation(params Params) AnimationProperty
+	func NewAnimationProperty(params Params) AnimationProperty
 
 Часть свойств интерфейса AnimationProperty используется в обоих типах анимации, остальные используются 
 только в сценариях анимации.
@@ -5082,13 +5082,13 @@ onNo или onCancel (если она не nil).
 
 Например
 
-	animation := rui.NewAnimation(rui.Params{
+	animation := rui.NewAnimationProperty(rui.Params{
 		rui.TimingFunction: rui.StepsTiming(10),
 	})
 
 эквивалентно 
 
-	animation := rui.NewAnimation(rui.Params{
+	animation := rui.NewAnimationProperty(rui.Params{
 		rui.TimingFunction: "steps(10)",
 	})
 	
@@ -5117,7 +5117,7 @@ x1 и x2 должны быть в диапазоне [0, 1]. Вы можете
 Она присваивает свойству новое значение, при этом изменение происходит с использованием заданной анимации.
 Например,
 
-	view.SetAnimated(rui.Width, rui.Px(400), rui.NewAnimation(rui.Params{
+	view.SetAnimated(rui.Width, rui.Px(400), rui.NewAnimationProperty(rui.Params{
 		rui.Duration:       0.75,
 		rui.TimingFunction: rui.EaseOutTiming,
 	}))
@@ -5132,11 +5132,11 @@ x1 и x2 должны быть в диапазоне [0, 1]. Вы можете
 Например,
 
 	view.Set(rui.Transition, rui.Params{
-		rui.Height: rui.NewAnimation(rui.Params{
+		rui.Height: rui.NewAnimationProperty(rui.Params{
 			rui.Duration:       0.75,
 			rui.TimingFunction: rui.EaseOutTiming,
 		},
-		rui.BackgroundColor: rui.NewAnimation(rui.Params{
+		rui.BackgroundColor: rui.NewAnimationProperty(rui.Params{
 			rui.Duration:       1.5,
 			rui.Delay:          0.5,
 			rui.TimingFunction: rui.Linear,
@@ -5273,7 +5273,7 @@ KeyFrames - промежуточные значения свойства (клю
 			90: rui.Px(220),
 		}
 	}
-	animation := rui.NewAnimation(rui.Params{
+	animation := rui.NewAnimationProperty(rui.Params{
 		rui.PropertyTag:    []rui.AnimatedProperty{prop},
 		rui.Duration:       2,
 		rui.TimingFunction: LinearTiming,

README.md

@@ -5014,7 +5014,7 @@ The library supports two types of animation:
 The AnimationProperty interface is used to set animation parameters. It extends the Properties interface.
 The interface is created using the function:
 
-	func NewAnimation(params Params) AnimationProperty
+	func NewAnimationProperty(params Params) AnimationProperty
 
 Some of the properties of the AnimationProperty interface are used in both types of animation, the rest are used only 
 in animation scripts.
@@ -5053,13 +5053,13 @@ You can specify this function either as text or using the function:
 
 For example
 
-	animation := rui.NewAnimation(rui.Params{
+	animation := rui.NewAnimationProperty(rui.Params{
 		rui.TimingFunction: rui.StepsTiming(10),
 	})
 
 equivalent to 
 
-	animation := rui.NewAnimation(rui.Params{
+	animation := rui.NewAnimationProperty(rui.Params{
 		rui.TimingFunction: "steps(10)",
 	})
 	
@@ -5087,7 +5087,7 @@ This function has the following description:
 It assigns a new value to the property, and the change occurs using the specified animation.
 For example,
 
-	view.SetAnimated(rui.Width, rui.Px(400), rui.NewAnimation(rui.Params{
+	view.SetAnimated(rui.Width, rui.Px(400), rui.NewAnimationProperty(rui.Params{
 		rui.Duration:       0.75,
 		rui.TimingFunction: rui.EaseOutTiming,
 	}))
@@ -5103,11 +5103,11 @@ and the value should be the AnimationProperty interface.
 For example,
 
 	view.Set(rui.Transition, rui.Params{
-		rui.Height: rui.NewAnimation(rui.Params{
+		rui.Height: rui.NewAnimationProperty(rui.Params{
 			rui.Duration:       0.75,
 			rui.TimingFunction: rui.EaseOutTiming,
 		},
-		rui.BackgroundColor: rui.NewAnimation(rui.Params{
+		rui.BackgroundColor: rui.NewAnimationProperty(rui.Params{
 			rui.Duration:       1.5,
 			rui.Delay:          0.5,
 			rui.TimingFunction: rui.Linear,
@@ -5246,7 +5246,7 @@ Example,
 			90: rui.Px(220),
 		}
 	}
-	animation := rui.NewAnimation(rui.Params{
+	animation := rui.NewAnimationProperty(rui.Params{
 		rui.PropertyTag:    []rui.AnimatedProperty{prop},
 		rui.Duration:       2,
 		rui.TimingFunction: LinearTiming,

animation.go

@@ -256,8 +256,19 @@ func parseAnimation(obj DataObject) AnimationProperty {
 	return animation
 }
 
-// NewAnimation creates a new animation object and return its interface
+// NewAnimationProperty creates a new animation object and return its interface
-func NewAnimation(params Params) AnimationProperty {
+//
+// The following properties can be used:
+//   - "id" (ID) - specifies the animation identifier. Used only for animation script.
+//   - "duration" (Duration) - specifies the length of time in seconds that an animation takes to complete one cycle;
+//   - "delay" (Delay) - specifies the amount of time in seconds to wait from applying the animation to an element before beginning to perform
+//     the animation. The animation can start later, immediately from its beginning or immediately and partway through the animation;
+//   - "timing-function" (TimingFunction) - specifies how an animation progresses through the duration of each cycle;
+//   - "iteration-count" (IterationCount) - specifies the number of times an animation sequence should be played before stopping. Used only for animation script;
+//   - "animation-direction" (AnimationDirection) - specifies whether an animation should play forward, backward,
+//     or alternate back and forth between playing the sequence forward and backward. Used only for animation script;
+//   - "property" (PropertyTag) - describes a scenario for changing a View's property. Used only for animation script.
+func NewAnimationProperty(params Params) AnimationProperty {
 	animation := new(animationData)
 	animation.init()
 
@@ -267,6 +278,88 @@ func NewAnimation(params Params) AnimationProperty {
 	return animation
 }
 
+// NewTransitionAnimation creates animation data for the transition.
+//   - timingFunc - specifies how an animation progresses through the duration of each cycle. If it is "" then "easy" function is used;
+//   - duration - specifies the length of time in seconds that an animation takes to complete one cycle. Must be > 0;
+//   - delay - specifies the amount of time in seconds to wait from applying the animation to an element before beginning to perform
+//     the animation. The animation can start later, immediately from its beginning or immediately and partway through the animation.
+func NewTransitionAnimation(timingFunc string, duration float64, delay float64) AnimationProperty {
+	animation := new(animationData)
+	animation.init()
+
+	if duration <= 0 {
+		ErrorLog("Animation duration must be greater than 0")
+		return nil
+	}
+
+	if !animation.Set(Duration, duration) {
+		return nil
+	}
+
+	if timingFunc != "" {
+		if !animation.Set(TimingFunction, timingFunc) {
+			return nil
+		}
+	}
+
+	if delay != 0 {
+		animation.Set(Delay, delay)
+	}
+
+	return animation
+}
+
+// NewTransitionAnimation creates the animation scenario.
+//   - id - specifies the animation identifier.
+//   - timingFunc - specifies how an animation progresses through the duration of each cycle. If it is "" then "easy" function is used;
+//   - duration - specifies the length of time in seconds that an animation takes to complete one cycle. Must be > 0;
+//   - delay - specifies the amount of time in seconds to wait from applying the animation to an element before beginning to perform
+//     the animation. The animation can start later, immediately from its beginning or immediately and partway through the animation.
+//   - direction - specifies whether an animation should play forward, backward,
+//     or alternate back and forth between playing the sequence forward and backward. Only the following values ​​can be used:
+//     0 (NormalAnimation), 1 (ReverseAnimation), 2 (AlternateAnimation), and 3 (AlternateReverseAnimation);
+//   - iterationCount - specifies the number of times an animation sequence should be played before stopping;
+//   - property - describes a scenario for changing a View's property.
+func NewAnimation(id string, timingFunc string, duration float64, delay float64, direction int, iterationCount int, property ...AnimatedProperty) AnimationProperty {
+	animation := new(animationData)
+	animation.init()
+
+	if duration <= 0 {
+		ErrorLog("Animation duration must be greater than 0")
+		return nil
+	}
+
+	if !animation.Set(Duration, duration) {
+		return nil
+	}
+
+	if id != "" {
+		animation.Set(ID, id)
+	}
+
+	if timingFunc != "" {
+		animation.Set(TimingFunction, timingFunc)
+	}
+
+	if delay != 0 {
+		animation.Set(Delay, delay)
+	}
+
+	if direction > 0 {
+		animation.Set(AnimationDirection, direction)
+	}
+
+	if iterationCount > 0 {
+		animation.Set(IterationCount, iterationCount)
+	}
+
+	if len(property) > 0 {
+		animation.Set(PropertyTag, property)
+	}
+
+	return animation
+}
+
 func (animation *animationData) init() {
 	animation.dataProperty.init()
 	animation.normalize = normalizeAnimation

popup.go

@@ -797,7 +797,7 @@ func (popup *popupData) init(view View, popupParams Params) {
 	popup.layerView = NewGridLayout(session, layerParams)
 
 	if popup.showOpacity != 1 || popup.showTransform != nil {
-		animation := NewAnimation(Params{
+		animation := NewAnimationProperty(Params{
 			Duration:       popup.showDuration,
 			TimingFunction: popup.showTiming,
 		})

propertyNames.go

@@ -6,14 +6,14 @@ type PropertyName string
 const (
 	// ID is the constant for "id" property tag.
 	//
-	// # Used by View, Animation.
+	// # Used by View, AnimationProperty.
 	//
 	// Usage in View:
 	// Optional textual identifier for the view. Used to reference view from source code if needed.
 	//
 	// Supported types: string.
 	//
-	// # Usage in Animation:
+	// # Usage in AnimationProperty:
 	//
 	// Specifies the animation identifier. Used only for animation script.
 	//