public void EnterColor(Color c, bool animation)
{
if (c.A == 0) // The recent color has no color
{
c.R = c.G = c.B = 0;
} // Black
CurrentColor = c;
HSVColor hsv = Math2.RGBToHSV(c);
Hue = hsv.H;
Saturation = hsv.S;
Value = hsv.V;
CompositeTransform ct = SeletcedColorEllipseCompositeTransform;
// Compute SeletcedColorEllipse position
Point targetPoint = Math2.SVToPoint(Saturation, Value, triangleSide);
targetPoint.X = trianglePoint1.X + targetPoint.X;
targetPoint.Y = trianglePoint1.Y - targetPoint.Y;
targetPoint = Math2.RotatePoint(targetPoint, triangleCenter, -Hue);
targetPoint.X -= seletcedColorEllipse_r;
targetPoint.Y -= seletcedColorEllipse_r;
if (animation)
{
ColorPickerStoryboardStart(Hue, targetPoint);
}
else
{
TriangleImgRotation.Angle = Hue;
SelesctedRingImgRotation.Angle = Hue;
_preAngle = Hue;
PolygonTransform.Angle = Hue;
ct.TranslateX = targetPoint.X;
ct.TranslateY = targetPoint.Y;
_preCirclePoint = new Point(ct.TranslateX, ct.TranslateY);
}
}
private unsafe void ChangeTriangleColorPixel(double hue)
{
HSVColor hsv = new HSVColor(hue, 1.0, 1.0);
using (BitmapBuffer buffer = triangleSoftwareBitmap.LockBuffer(BitmapBufferAccessMode.Write))
{
using (var reference = buffer.CreateReference())
{
byte *dataInBytes;
uint capacity;
((IMemoryBufferByteAccess)reference).GetBuffer(out dataInBytes, out capacity);
// Fill-in the BGRA plane
BitmapPlaneDescription bufferLayout = buffer.GetPlaneDescription(0);
double imgWidth = bufferLayout.Width;
double imgHeight = bufferLayout.Height;
for (int row = 0; row < imgHeight; row++)
{
for (int col = 0; col < imgWidth; col++)
{
Point pt = new Point(col, bufferLayout.Height - row);
Math2.ComputeSV(pt, imgWidth, out hsv.S, out hsv.V);
Color color = hsv.GetRGB();
int pixelIndex = bufferLayout.Stride * row + 4 * col;
if (dataInBytes[pixelIndex + 3] != 0)
{
dataInBytes[pixelIndex + 0] = (byte)color.B;
dataInBytes[pixelIndex + 1] = (byte)color.G;
dataInBytes[pixelIndex + 2] = (byte)color.R;
}
}
}
}
}
}
private void Polygon_PointerMoved(object sender, PointerRoutedEventArgs e)
{
if (_trianglePressing && !_textboxFocusing)
{
Point currentPoint = e.GetCurrentPoint(this.ImageGrid).Position;
// Rotation current position "Hue" degrees
Point rotatedPoint = Math2.RotatePoint(currentPoint, triangleCenter, Hue);
// Let trianglePoint1 become origin
Point newPoint = new Point(
Math.Abs(rotatedPoint.X - trianglePoint1.X),
Math.Abs(rotatedPoint.Y - trianglePoint1.Y)
);
Math2.ComputeSV(newPoint, triangleSide, out Saturation, out Value);
CurrentColor = Math2.HSVToRGB(Hue, Saturation, Value);
// Compute SeletcedColorEllipse
if (_pointerMovedStory)
{
Point targetPoint = new Point(
currentPoint.X - seletcedColorEllipse_r,
currentPoint.Y - seletcedColorEllipse_r
);
ColorPickerStoryboardStart(_preAngle, targetPoint);
}
else
{
CompositeTransform ct = SeletcedColorEllipseCompositeTransform;
ct.TranslateX = currentPoint.X - seletcedColorEllipse_r;
ct.TranslateY = currentPoint.Y - seletcedColorEllipse_r;
_preCirclePoint = new Point(ct.TranslateX, ct.TranslateY);
}
}
}
public void EnterHSV(double h, double s, double v, Point targetPoint, bool animation)
{
Hue = h;
Saturation = s;
Value = v;
CurrentColor = Math2.HSVToRGB(Hue, Saturation, Value);
CompositeTransform ct = SeletcedColorEllipseCompositeTransform;
if (animation)
{
ColorPickerStoryboardStart(_preAngle, targetPoint);
}
else
{
TriangleImgRotation.Angle = Hue;
SelesctedRingImgRotation.Angle = Hue;
_preAngle = Hue;
PolygonTransform.Angle = Hue;
ct.TranslateX = targetPoint.X;
ct.TranslateY = targetPoint.Y;
_preCirclePoint = new Point(ct.TranslateX, ct.TranslateY);
}
}
internal Color GetRGB()
{
return(Math2.HSVToRGB(H, S, V));
}
