protected WordAnimation(CaptionWord w, CaptionTextBlock t)
{
//Construct lists
TextEffects = new List <TextEffect>();
Animations = new List <AnimationTimeline>();
AnimationTargets = new List <AnimationTargetString>();
}
public static WordAnimation CreateWordAnimation(CaptionWord w, CaptionTextBlock t)
{
WordAnimation animation;
animation = null; //TODO: remove this when all classes created
switch (w.Emotion)
{
case Emotion.Happy:
animation = new HappyWordAnimation(w, t);
break;
case Emotion.Sad:
break;
case Emotion.Fear:
break;
case Emotion.Anger:
break;
default: //unkown or no emotion
//TODO: explicitly define this behaviour
throw new Exception("No emotion specified");
}
return(animation);
}
/// <summary>
/// Creates a new instance of a HappyWordAnimation. Initializes the animation based on the
/// specified paramaters.
/// </summary>
/// <param name="w">The CaptionWord to base the animation off of.</param>
/// begins.</param>
/// <param name="t">The Textblock that this animation will be applied to.</param>
public HappyWordAnimation(CaptionWord w, CaptionTextBlock t) : base(w, t)
{
//Settings dependent on intensity
double dur = 0;
double scalefinish = 0;
double yFinish = 0;
switch (w.Intensity)
{
case Intensity.Low:
dur = 0.75;
scalefinish = 1.1;
yFinish = 20;
break;
case Intensity.Medium:
dur = 0.65;
scalefinish = 1.2;
yFinish = 40;
break;
case Intensity.High:
dur = 0.60;
scalefinish = 1.3;
yFinish = 40;
break;
case Intensity.None:
default:
//TODO handle exception
break;
}
//Animation duration
Duration duration = TimeSpan.FromSeconds(dur);
StringBuilder b = new StringBuilder(t.Caption.Text);
//Formatted text up until the index of the caption
var captionFT = new FormattedText
(
b.ToString(0, w.BeginIndex),
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(t.FontFamily, t.FontStyle, t.FontWeight, t.FontStretch),
t.FontSize,
Brushes.Black //Colour does not matter here
);
//Formatted text of the emotive caption word
var wordFT = new FormattedText
(
w.Text,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(t.FontFamily, t.FontStyle, t.FontWeight, t.FontStretch),
t.FontSize,
Brushes.Black //Colour does not matter here
);
TextEffect e1 = new TextEffect
{
PositionStart = w.BeginIndex,
PositionCount = w.Length,
Transform = new ScaleTransform
{
//TODO: Fix centering
CenterX = captionFT.Width + wordFT.Width / 2,
CenterY = captionFT.Height,
},
};
this.TextEffects.Add(e1);
DoubleAnimationUsingKeyFrames a1 = new DoubleAnimationUsingKeyFrames
{
BeginTime = TimeSpan.FromSeconds(t.Caption.Begin),
Duration = duration,
};
a1.KeyFrames.Add(new LinearDoubleKeyFrame(0.5, KeyTime.FromPercent(0)));
a1.KeyFrames.Add(new LinearDoubleKeyFrame(scalefinish, KeyTime.FromPercent(0.5)));
a1.KeyFrames.Add(new LinearDoubleKeyFrame(1, KeyTime.FromPercent(1)));
this.Animations.Add(a1);
this.AnimationTargets.Add(new AnimationTargetString("Transform.ScaleX", 0));
//Make second animation for y scale
DoubleAnimationUsingKeyFrames a2 = a1.Clone();
this.Animations.Add(a2);
this.AnimationTargets.Add(new AnimationTargetString("Transform.ScaleY", 0));
TextEffect e2 = new TextEffect //Yfinish effect
{
PositionStart = w.BeginIndex,
PositionCount = w.Length,
Transform = new TranslateTransform(),
};
this.TextEffects.Add(e2);
DoubleAnimationUsingKeyFrames a3 = new DoubleAnimationUsingKeyFrames
{
BeginTime = TimeSpan.FromSeconds(t.Caption.Begin),
Duration = duration,
};
a3.KeyFrames.Add(new LinearDoubleKeyFrame(0, KeyTime.FromPercent(0)));
a3.KeyFrames.Add(new LinearDoubleKeyFrame(-yFinish, KeyTime.FromPercent(0.5)));
a3.KeyFrames.Add(new LinearDoubleKeyFrame(0, KeyTime.FromPercent(1)));
this.Animations.Add(a3);
this.AnimationTargets.Add(new AnimationTargetString("Transform.Y", 1));
//alpha effect
TextEffect e3 = new TextEffect()
{
PositionStart = w.BeginIndex,
PositionCount = w.Length,
};
e3.Foreground = t.Foreground;
this.TextEffects.Add(e3);
ColorAnimationUsingKeyFrames a4 = new ColorAnimationUsingKeyFrames
{
BeginTime = TimeSpan.FromSeconds(t.Caption.Begin),
Duration = duration,
};
System.Windows.Media.Color fgColor = t.Caption.Speaker.Font.ForegroundColour.ToMediaColor();
a4.KeyFrames.Add(new LinearColorKeyFrame(fgColor, KeyTime.FromPercent(0)));
a4.KeyFrames.Add(new LinearColorKeyFrame(Color.FromArgb(100, fgColor.R, fgColor.G, fgColor.B),
KeyTime.FromPercent(0.5)));
a4.KeyFrames.Add(new LinearColorKeyFrame(fgColor, KeyTime.FromPercent(1)));
this.Animations.Add(a4);
this.AnimationTargets.Add(new AnimationTargetString("Foreground."
+ SolidColorBrush.ColorProperty.ToString(), 2));
}
