public static RadialGradient lerp(RadialGradient a, RadialGradient b, float t)
{
if (a == null && b == null)
{
return(null);
}
if (a == null)
{
return((RadialGradient)b.scale(t));
}
if (b == null)
{
return((RadialGradient)a.scale(1.0f - t));
}
_ColorsAndStops interpolated = _ColorsAndStops._interpolateColorsAndStops(
a.colors,
a._impliedStops(),
b.colors,
b._impliedStops(),
t);
return(new RadialGradient(
center: AlignmentGeometry.lerp(a.center, b.center, t),
radius: Mathf.Max(0.0f, MathUtils.lerpNullableFloat(a.radius, b.radius, t)),
colors: interpolated.colors,
stops: interpolated.stops,
tileMode: t < 0.5 ? a.tileMode : b.tileMode,
focal: AlignmentGeometry.lerp(a.focal, b.focal, t),
focalRadius: Mathf.Max(0.0f, MathUtils.lerpNullableFloat(a.focalRadius, b.focalRadius, t))
));
}
public static LinearGradient lerp(LinearGradient a, LinearGradient b, float t)
{
if (a == null && b == null)
{
return(null);
}
if (a == null)
{
return((LinearGradient)b.scale(t));
}
if (b == null)
{
return((LinearGradient)a.scale(1.0f - t));
}
_ColorsAndStops interpolated = _ColorsAndStops._interpolateColorsAndStops(
a.colors,
a._impliedStops(),
b.colors,
b._impliedStops(),
t);
return(new LinearGradient(
begin: AlignmentGeometry.lerp(a.begin, b.begin, t),
end: AlignmentGeometry.lerp(a.end, b.end, t),
colors: interpolated.colors,
stops: interpolated.stops,
tileMode: t < 0.5 ? a.tileMode : b.tileMode
));
}
public LinearGradient(
AlignmentGeometry begin = null,
AlignmentGeometry end = null,
List <Color> colors = null,
List <float> stops = null,
TileMode tileMode = TileMode.clamp,
GradientTransform transform = null
) : base(colors: colors, stops: stops, transform: transform)
{
this.begin = begin ?? Alignment.centerLeft;
this.end = end ?? Alignment.centerRight;
this.tileMode = tileMode;
}
public SweepGradient(
AlignmentGeometry center = null,
float startAngle = 0.0f,
float endAngle = Mathf.PI * 2,
List <Color> colors = null,
List <float> stops = null,
TileMode tileMode = TileMode.clamp,
GradientTransform transform = null
) : base(colors: colors, stops: stops, transform: transform)
{
this.center = center ?? Alignment.center;
this.startAngle = startAngle;
this.endAngle = endAngle;
this.tileMode = tileMode;
}
public RadialGradient(
AlignmentGeometry center = null,
float radius = 0.5f,
List <Color> colors = null,
List <float> stops = null,
TileMode tileMode = TileMode.clamp,
AlignmentGeometry focal = null,
float focalRadius = 0.0f,
GradientTransform transform = null
) : base(colors: colors, stops: stops, transform: transform)
{
this.center = center ?? Alignment.center;
this.radius = radius;
this.tileMode = tileMode;
this.focal = focal;
this.focalRadius = focalRadius;
}
public DecorationImage(
ImageProvider image = null,
ImageErrorListener onError = null,
ColorFilter colorFilter = null,
BoxFit?fit = null,
AlignmentGeometry alignment = null,
Rect centerSlice = null,
ImageRepeat repeat = ImageRepeat.noRepeat,
bool matchTextDirection = false
)
{
D.assert(image != null);
this.image = image;
this.onError = onError;
this.colorFilter = colorFilter;
this.fit = fit;
this.alignment = alignment ?? Alignment.center;
this.centerSlice = centerSlice;
this.repeat = repeat;
this.matchTextDirection = matchTextDirection;
}
