/// <summary>
/// Move the hue slider to the hue of the input color
/// </summary>
///
/// <param name="newColor">
/// New target color
/// </param>
public void MoveToColor(Color newColor)
{
if (huePanel == null)
{
Start();
}
HSBColor hsbColor = new HSBColor(newColor);
float minY = huePanel.transform.position.y - huePanel.GetComponent <RectTransform>().rect.height + (huePanel.GetComponent <RectTransform>().rect.height / 2) + 3;
float maxY = huePanel.transform.position.y + (huePanel.GetComponent <RectTransform>().rect.height / 2) - 3;
float range = 204;
float newY = (-207) + (range * hsbColor.h);
gameObject.GetComponent <RectTransform>().anchoredPosition = new Vector2(0, newY);
}
/// <summary>
/// Update appropriate UI fields after any one of the RGB values are changed
/// </summary>
public void RGBChanged()
{
// Get the RGB values
float r = float.Parse(redInputField.text);
float g = float.Parse(greenInputField.text);
float b = float.Parse(blueInputField.text);
// Ensure that colors are within the right range (0 to 255)
if (r > 255)
{
redInputField.text = "255";
r = 255;
}
if (g > 255)
{
greenInputField.text = "255";
g = 255;
}
if (b > 255)
{
blueInputField.text = "255";
b = 255;
}
// Scale to between 0.0 and 1.0
r /= 255;
g /= 255;
b /= 255;
// Convert the RGB values to a color
Color newColorRGB = new Color(r, g, b);
currentColor = new HSBColor(newColorRGB);
// Update the current color image
currentColorImage.color = newColorRGB;
// Update the hexInputField
hexInputField.text = "#" + ColorToHex(newColorRGB);
// Update the position of the Hue slider
hueSlider.MoveToColor(newColorRGB);
// Update the shader on the HSB swatch
hsbSwatch.MoveToColor(new HSBColor(newColorRGB));
}
/// <summary>
/// Update the current color based on changes from a different UI component
/// </summary>
///
/// <param name="hue">
/// New hue value (if less than 0.0, assume hue unchanged)
/// </param>
/// <param name="saturation">
/// New saturation value (if less than 0.0, assume saturation unchanged)
/// </param>
/// <param name="brightness">
/// New brightness value (if less than 0.0, assume brightness unchanged)
/// </param>
public void SetColor(float hue, float saturation, float brightness)
{
// Updated HSB values
float newHue = currentColor.h;
float newSaturation = currentColor.s;
float newBrightness = currentColor.b;
// Update the HUE
if (hue >= 0.0f)
{
newHue = hue;
}
// Update the saturation
if (saturation > 0.0f)
{
newSaturation = saturation;
}
// Update the brightness
if (brightness > 0.0f)
{
newBrightness = brightness;
}
currentColor = new HSBColor(newHue, newSaturation, newBrightness);
Color rgbColor = currentColor.ToColor();
// Update the UI components with the new color's values
currentColorImage.color = rgbColor;
hexInputField.text = "#" + ColorToHex(rgbColor);
float r = (float)Math.Truncate(rgbColor.r * 1000.0f) / 1000.0f;
float g = (float)Math.Truncate(rgbColor.g * 1000.0f) / 1000.0f;
float b = (float)Math.Truncate(rgbColor.b * 1000.0f) / 1000.0f;
// Update the RGB Input Fields
redInputField.text = ((int)(r * 255)).ToString();
greenInputField.text = ((int)(g * 255)).ToString();
blueInputField.text = ((int)(b * 255)).ToString();
if (saturation < 0.0f || brightness < 0.0f)
{
// Update the shader on the HSB swatch
hsbSwatch.MoveToColor(new HSBColor(rgbColor));
}
}
public static HSBColor Lerp(HSBColor a, HSBColor b, float t)
{
float h, s;
//check special case black (color.b==0): interpolate neither hue nor saturation!
//check special case grey (color.s==0): don't interpolate hue!
if (a.b == 0)
{
h = b.h;
s = b.s;
}
else if (b.b == 0)
{
h = a.h;
s = a.s;
}
else
{
if (a.s == 0)
{
h = b.h;
}
else if (b.s == 0)
{
h = a.h;
}
else
{
// works around bug with LerpAngle
float angle = Mathf.LerpAngle(a.h * 360f, b.h * 360f, t);
while (angle < 0f)
{
angle += 360f;
}
while (angle > 360f)
{
angle -= 360f;
}
h = angle / 360f;
}
s = Mathf.Lerp(a.s, b.s, t);
}
return(new HSBColor(h, s, Mathf.Lerp(a.b, b.b, t), Mathf.Lerp(a.a, b.a, t)));
}
/// <summary>
/// Store the current color choosing, remembering the previous color
/// </summary>
public void OK()
{
previousColor = currentColor;
previousColorImage.color = previousColor.ToColor();
for (int i = (recentColorImages.Length - 1); i >= 0; i--)
{
if (i == 0)
{
recentColorImages[i].GetComponent <Image>().color = previousColor.ToColor();
}
else
{
Color beforeColor = recentColorImages[i - 1].GetComponent <Image>().color;
recentColorImages[i].GetComponent <Image>().color = beforeColor;
}
}
gameObject.SetActive(false);
}
/// <summary>
/// Revert to the input image's color
/// </summary>
public void RevertToColor(Image image)
{
currentColor = new HSBColor(image.color);
Color currentColorRGB = currentColor.ToColor();
// Update the current color image
currentColorImage.color = currentColorRGB;
// Update the RGB Input Fields
redInputField.text = ((int)(currentColorRGB.r * 255)).ToString();
greenInputField.text = ((int)(currentColorRGB.g * 255)).ToString();
blueInputField.text = ((int)(currentColorRGB.b * 255)).ToString();
// Update the hexInputField
hexInputField.text = "#" + ColorToHex(currentColorRGB);
// Update the position of the Hue slider
hueSlider.MoveToColor(currentColorRGB);
// Update the shader on the HSB swatch
hsbSwatch.MoveToColor(new HSBColor(currentColorRGB));
}
public static void Test()
{
HSBColor color;
color = new HSBColor(Color.red);
Debug.Log("red: " + color);
color = new HSBColor(Color.green);
Debug.Log("green: " + color);
color = new HSBColor(Color.blue);
Debug.Log("blue: " + color);
color = new HSBColor(Color.grey);
Debug.Log("grey: " + color);
color = new HSBColor(Color.white);
Debug.Log("white: " + color);
color = new HSBColor(new Color(0.4f, 1f, 0.84f, 1f));
Debug.Log("0.4, 1f, 0.84: " + color);
Debug.Log("164,82,84 .... 0.643137f, 0.321568f, 0.329411f :" + ToColor(new HSBColor(new Color(0.643137f, 0.321568f, 0.329411f))));
}