private GradientPoint AddPoint(
float position,
Color color)
{
var gp = new GradientPoint {
Position = position, Color = color, Tag = new GradientStop(position, color)
};
gpeMain.GradientPoints.Add(gp);
return(gp);
}
/// <summary>
/// Adds a gradient point to this gradient object.
/// </summary>
/// <param name="gradientPos">The position of this gradient point.</param>
/// <param name="color">The color of this gradient point.</param>
/// <remarks>
/// No two gradient points have the same position.
/// It does not matter which order these gradient points are added.
/// </remarks>
public void AddGradientPoint(double gradientPos, Color color)
{
var gradientPoint = new GradientPoint(gradientPos, color);
var s = gradientPoints.BinarySearch(gradientPoint);
if (s >= 0)
{
throw new ArgumentException("All GradientPoints must have unique positions");
}
else
{
gradientPoints.Insert(~s, gradientPoint);
}
}
public Color32 ColorAtX(float x, float alpha)
{
for (int i = 0; i < gradientPoints.Length - 1; i++)
{
GradientPoint lower = gradientPoints[i];
GradientPoint upper = gradientPoints[i + 1];
if (x >= lower.x && x <= upper.x)
{
Color result = Color.Lerp(upper.color, lower.color, (upper.x - x) / (upper.x - lower.x));
result.a = alpha;
return(result);
}
}
return(UNASSIGNED);
}
internal void SetBeacon(BeaconData beacon)
{
if (beacon.Type == BeaconID.TrackGradientMemory.TrackGradientPoint)
{
int param_trackPos = Math.Abs(beacon.Optional % 1000000);
int param_gradient = beacon.Optional / 1000000;
int idxOfGradientPtAtHere = _gPtC.IndexOf(param_trackPos);
if (idxOfGradientPtAtHere > -1) {
_gPtC[idxOfGradientPtAtHere] = new GradientPoint(param_gradient, param_trackPos);
} else {
_gPtC.Add(new GradientPoint(param_gradient, param_trackPos));
}
OnGradientPointsDataRefreshed(_gPtC);
}
}
public void SetGradientStops(GradientStopCollection stops)
{
// initialize gpeMain.GradientPoints from ThemeBlend object
gpeMain.BeginUpdate();
gpeMain.GradientPoints.Clear();
if (!IsValid(stops))
{
// initialize gpeMain.GradientPoints with default values 0,0 : 1,1
AddPoint(0, Color.Black);
AddPoint(1, Color.White);
}
else
{
foreach (var stop in stops)
{
var gp = new GradientPoint {
Position = (float)stop.Position, Color = stop.Color, Tag = stop
};
gpeMain.GradientPoints.Add(gp);
}
}
gpeMain.SelectedPoint = gpeMain.GradientPoints[0];
gpeMain.EndUpdate();
}
/// <summary>
/// Adds a gradient point to this gradient object.
///
/// No two gradient points have the same position.
///
/// @throw System.ArgumentException if two control points have the same position.
///
/// It does not matter which order these gradient points are added.
/// </summary>
/// <param name="point">The gradient point to add</param>
public void AddGradientPoint(GradientPoint point)
{
if (_gradientPoints.Contains(point))
{
throw new ArgumentException(
String.Format(
"Cannont insert GradientPoint({0}, {1}) : Each GradientPoint is required to contain a unique position",
point.Position, point.Color));
}
else
{
_gradientPoints.Add(point);
// Desc order
_gradientPoints.Sort(delegate(GradientPoint p1, GradientPoint p2)
{
if (p1.Position > p2.Position)
return 1;
else if (p1.Position < p2.Position)
return -1;
else
return 0;
});
}
}
internal void AddRange(GradientPoint[] items)
{
this._gPts.AddRange(items);
}
internal void Add(GradientPoint item)
{
this._gPts.Add(item);
}