private void SetHSV(ColorHSV hsv)
{
if (!(bool)_spinButtonH.Tag)
{
_spinButtonH.Value = hsv.H;
}
if (!(bool)_sliderH.Tag)
{
_sliderH.Value = hsv.H;
}
if (!(bool)_spinButtonS.Tag)
{
_spinButtonS.Value = hsv.S;
}
if (!(bool)_sliderS.Tag)
{
_sliderS.Value = hsv.S;
}
if (!(bool)_spinButtonV.Tag)
{
_spinButtonV.Value = hsv.V;
}
if (!(bool)_sliderV.Tag)
{
_sliderV.Value = hsv.V;
}
}
private void OnColorChanged(ColorHSV h)
{
var c = h.ToRGB();
c.A = 255;
OnColorChanged(c, h);
}
private void SubscribeHSV(SpinButton spinButton, Slider slider)
{
spinButton.Tag = false;
slider.Tag = false;
spinButton.ValueChangedByUser += (s, a) =>
{
if (spinButton.Value == null)
{
return;
}
try
{
spinButton.Tag = true;
var hsv = new ColorHSV
{
H = (int)_sliderH.Value,
S = (int)_sliderS.Value,
V = (int)_sliderV.Value
};
SetHSV(hsv);
_suppressHSV = true;
var rgb = hsv.ToRGB();
Color = new Color(rgb.R, rgb.G, rgb.B, Color.A);
}
finally
{
spinButton.Tag = false;
_suppressHSV = false;
}
};
slider.ValueChangedByUser += (s, a) =>
{
try
{
slider.Tag = true;
var hsv = new ColorHSV
{
H = (int)_sliderH.Value,
S = (int)_sliderS.Value,
V = (int)_sliderV.Value
};
SetHSV(hsv);
_suppressHSV = true;
var rgb = hsv.ToRGB();
Color = new Color(rgb.R, rgb.G, rgb.B, Color.A);
}
finally
{
slider.Tag = false;
_suppressHSV = false;
}
};
}
private void HsvInputChanged(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(_inputHSV.Text))
{
return;
}
string[] st = _inputHSV.Text.Split(',');
if (st.Length != 3)
{
return;
}
if (int.TryParse(st[0], out int h) && byte.TryParse(st[1], out byte s) && byte.TryParse(st[2], out byte v))
{
if (h > 360 || s > 100 || v > 100)
{
return;
}
ColorHSV hsv = new ColorHSV()
{
H = h,
S = s,
V = v
};
_inputHSV.Tag = true;
OnColorChanged(hsv);
_inputHSV.Tag = false;
}
}
private void HsPickerMove(Point p)
{
int r = WheelHeight / 2;
int x = p.X - _colorWheel.Bounds.Location.X - r - _hsPicker.Bounds.Height / 2;
int y = p.Y - _colorWheel.Bounds.Location.Y - r - _hsPicker.Bounds.Width / 2;
float angle = (float)Math.Atan2(x, y);
float rsquared = Math.Min(x * x + y * y, r * r);
float radius = (float)Math.Sqrt(rsquared);
_hsPicker.Left = (int)(radius * Math.Sin(angle));
_hsPicker.Top = (int)(radius * Math.Cos(angle));
int h = (int)(angle * RadToDeg) + 90;
if (h < 0)
{
h += 360;
}
ColorHSV hsv = new ColorHSV()
{
H = h,
S = (int)(radius / r * 100),
V = colorHSV.V
};
_hsPicker.Tag = true;
OnColorChanged(hsv);
_hsPicker.Tag = false;
}
private void OnColorChanged(ColorHSV h)
{
var c = h.ToRGB();
c = ColorStorage.CreateColor(c.R, c.G, c.B, 255);
OnColorChanged(c, h);
}
private void VPickerMove(Point p)
{
int x = p.Y - _gradient.Bounds.Location.Y - _hsPicker.Bounds.Height / 2;
x = Math.Max(0, Math.Min(x, WheelHeight));
_vPicker.Top = x;
ColorHSV hsv = new ColorHSV()
{
H = colorHSV.H,
S = colorHSV.S,
V = 100 * (WheelHeight - x) / WheelHeight
};
_vPicker.Tag = true;
OnColorChanged(hsv);
_vPicker.Tag = false;
}
private void OnColorChanged(Color rgb, ColorHSV hsv)
{
if (!(bool)_inputRGB.Tag)
{
_inputRGB.Text = string.Format("{0},{1},{2}", rgb.R, rgb.G, rgb.B);
}
if (!(bool)_inputHSV.Tag)
{
_inputHSV.Text = string.Format("{0},{1},{2}", hsv.H, hsv.S, hsv.V);
}
if (!(bool)_inputHEX.Tag)
{
_inputHEX.Text = rgb.ToHexString().Substring(1, 6);
}
if (!(bool)_inputAlpha.Tag)
{
_inputAlpha.Text = DisplayAlpha.ToString();
}
if (!(bool)_sliderAlpha.Tag)
{
_sliderAlpha.Value = DisplayAlpha;
}
if (!(bool)_hsPicker.Tag)
{
_hsPicker.Top = (int)(hsv.S / 200f * WheelHeight * Math.Sin(DegToRad * (-hsv.H + 180)));
_hsPicker.Left = (int)(hsv.S / 200f * WheelHeight * Math.Cos(DegToRad * (-hsv.H + 180)));
}
if (!(bool)_vPicker.Tag)
{
_vPicker.Top = (int)(hsv.V / -100f * WheelHeight) + WheelHeight;
}
_colorWheel.Color = new Color(hsv.V / 100f, hsv.V / 100f, hsv.V / 100f);
_colorDisplay.Color = rgb;
colorHSV = hsv;
}
/// <summary>
/// Converts HSV color system to RGB
/// </summary>
/// <returns></returns>
public static Color ToRGB(this ColorHSV colorHSV)
{
float h = colorHSV.H;
if (colorHSV.H == 360)
{
h = 359;
}
float s = colorHSV.S;
float v = colorHSV.V;
int i;
float f, p, q, t;
h = Math.Max(0.0f, Math.Min(360.0f, h));
s = Math.Max(0.0f, Math.Min(100.0f, s));
v = Math.Max(0.0f, Math.Min(100.0f, v));
s /= 100;
v /= 100;
h /= 60;
i = (int)Math.Floor(h);
f = h - i;
p = v * (1 - s);
q = v * (1 - s * f);
t = v * (1 - s * (1 - f));
int r, g, b;
switch (i)
{
case 0:
r = (int)Math.Round(255 * v);
g = (int)Math.Round(255 * t);
b = (int)Math.Round(255 * p);
break;
case 1:
r = (int)Math.Round(255 * q);
g = (int)Math.Round(255 * v);
b = (int)Math.Round(255 * p);
break;
case 2:
r = (int)Math.Round(255 * p);
g = (int)Math.Round(255 * v);
b = (int)Math.Round(255 * t);
break;
case 3:
r = (int)Math.Round(255 * p);
g = (int)Math.Round(255 * q);
b = (int)Math.Round(255 * v);
break;
case 4:
r = (int)Math.Round(255 * t);
g = (int)Math.Round(255 * p);
b = (int)Math.Round(255 * v);
break;
default:
r = (int)Math.Round(255 * v);
g = (int)Math.Round(255 * p);
b = (int)Math.Round(255 * q);
break;
}
return(new Color((byte)r, (byte)g, (byte)b, (byte)255));
}