paulxstretch/deps/juce/modules/juce_graphics/colour/juce_Colour.cpp
essej 25bd5d8adb git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"
2022-04-18 17:51:22 -04:00

713 lines
26 KiB
C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2020 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
End User License Agreement: www.juce.com/juce-6-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
namespace ColourHelpers
{
static uint8 floatToUInt8 (float n) noexcept
{
return n <= 0.0f ? 0 : (n >= 1.0f ? 255 : (uint8) roundToInt (n * 255.0f));
}
static float getHue (Colour col)
{
auto r = (int) col.getRed();
auto g = (int) col.getGreen();
auto b = (int) col.getBlue();
auto hi = jmax (r, g, b);
auto lo = jmin (r, g, b);
float hue = 0.0f;
if (hi > 0 && ! approximatelyEqual (hi, lo))
{
auto invDiff = 1.0f / (float) (hi - lo);
auto red = (float) (hi - r) * invDiff;
auto green = (float) (hi - g) * invDiff;
auto blue = (float) (hi - b) * invDiff;
if (r == hi) hue = blue - green;
else if (g == hi) hue = 2.0f + red - blue;
else hue = 4.0f + green - red;
hue *= 1.0f / 6.0f;
if (hue < 0.0f)
hue += 1.0f;
}
return hue;
}
//==============================================================================
struct HSL
{
HSL (Colour col) noexcept
{
auto r = (int) col.getRed();
auto g = (int) col.getGreen();
auto b = (int) col.getBlue();
auto hi = jmax (r, g, b);
auto lo = jmin (r, g, b);
if (hi < 0)
return;
lightness = ((float) (hi + lo) / 2.0f) / 255.0f;
if (lightness <= 0.0f)
return;
hue = getHue (col);
if (1.0f <= lightness)
return;
auto denominator = 1.0f - std::abs ((2.0f * lightness) - 1.0f);
saturation = ((float) (hi - lo) / 255.0f) / denominator;
}
Colour toColour (Colour original) const noexcept
{
return Colour::fromHSL (hue, saturation, lightness, original.getAlpha());
}
static PixelARGB toRGB (float h, float s, float l, uint8 alpha) noexcept
{
auto v = l < 0.5f ? l * (1.0f + s) : l + s - (l * s);
if (approximatelyEqual (v, 0.0f))
return PixelARGB (alpha, 0, 0, 0);
auto min = (2.0f * l) - v;
auto sv = (v - min) / v;
h = ((h - std::floor (h)) * 360.0f) / 60.0f;
auto f = h - std::floor (h);
auto vsf = v * sv * f;
auto mid1 = min + vsf;
auto mid2 = v - vsf;
if (h < 1.0f) return PixelARGB (alpha, floatToUInt8 (v), floatToUInt8 (mid1), floatToUInt8 (min));
else if (h < 2.0f) return PixelARGB (alpha, floatToUInt8 (mid2), floatToUInt8 (v), floatToUInt8 (min));
else if (h < 3.0f) return PixelARGB (alpha, floatToUInt8 (min), floatToUInt8 (v), floatToUInt8 (mid1));
else if (h < 4.0f) return PixelARGB (alpha, floatToUInt8 (min), floatToUInt8 (mid2), floatToUInt8 (v));
else if (h < 5.0f) return PixelARGB (alpha, floatToUInt8 (mid1), floatToUInt8 (min), floatToUInt8 (v));
else if (h < 6.0f) return PixelARGB (alpha, floatToUInt8 (v), floatToUInt8 (min), floatToUInt8 (mid2));
return PixelARGB (alpha, 0, 0, 0);
}
float hue = 0.0f, saturation = 0.0f, lightness = 0.0f;
};
//==============================================================================
struct HSB
{
HSB (Colour col) noexcept
{
auto r = (int) col.getRed();
auto g = (int) col.getGreen();
auto b = (int) col.getBlue();
auto hi = jmax (r, g, b);
auto lo = jmin (r, g, b);
if (hi > 0)
{
saturation = (float) (hi - lo) / (float) hi;
if (saturation > 0.0f)
hue = getHue (col);
brightness = (float) hi / 255.0f;
}
}
Colour toColour (Colour original) const noexcept
{
return Colour (hue, saturation, brightness, original.getAlpha());
}
static PixelARGB toRGB (float h, float s, float v, uint8 alpha) noexcept
{
v = jlimit (0.0f, 255.0f, v * 255.0f);
auto intV = (uint8) roundToInt (v);
if (s <= 0)
return PixelARGB (alpha, intV, intV, intV);
s = jmin (1.0f, s);
h = ((h - std::floor (h)) * 360.0f) / 60.0f;
auto f = h - std::floor (h);
auto x = (uint8) roundToInt (v * (1.0f - s));
if (h < 1.0f) return PixelARGB (alpha, intV, (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))), x);
if (h < 2.0f) return PixelARGB (alpha, (uint8) roundToInt (v * (1.0f - s * f)), intV, x);
if (h < 3.0f) return PixelARGB (alpha, x, intV, (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))));
if (h < 4.0f) return PixelARGB (alpha, x, (uint8) roundToInt (v * (1.0f - s * f)), intV);
if (h < 5.0f) return PixelARGB (alpha, (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))), x, intV);
return PixelARGB (alpha, intV, x, (uint8) roundToInt (v * (1.0f - s * f)));
}
float hue = 0.0f, saturation = 0.0f, brightness = 0.0f;
};
//==============================================================================
struct YIQ
{
YIQ (Colour c) noexcept
{
auto r = c.getFloatRed();
auto g = c.getFloatGreen();
auto b = c.getFloatBlue();
y = 0.2999f * r + 0.5870f * g + 0.1140f * b;
i = 0.5957f * r - 0.2744f * g - 0.3212f * b;
q = 0.2114f * r - 0.5225f * g - 0.3113f * b;
alpha = c.getFloatAlpha();
}
Colour toColour() const noexcept
{
return Colour::fromFloatRGBA (y + 0.9563f * i + 0.6210f * q,
y - 0.2721f * i - 0.6474f * q,
y - 1.1070f * i + 1.7046f * q,
alpha);
}
float y = 0.0f, i = 0.0f, q = 0.0f, alpha = 0.0f;
};
}
//==============================================================================
bool Colour::operator== (const Colour& other) const noexcept { return argb.getNativeARGB() == other.argb.getNativeARGB(); }
bool Colour::operator!= (const Colour& other) const noexcept { return argb.getNativeARGB() != other.argb.getNativeARGB(); }
//==============================================================================
Colour::Colour (uint32 col) noexcept
: argb (static_cast<uint8> ((col >> 24) & 0xff),
static_cast<uint8> ((col >> 16) & 0xff),
static_cast<uint8> ((col >> 8) & 0xff),
static_cast<uint8> (col & 0xff))
{
}
Colour::Colour (uint8 red, uint8 green, uint8 blue) noexcept
{
argb.setARGB (0xff, red, green, blue);
}
Colour Colour::fromRGB (uint8 red, uint8 green, uint8 blue) noexcept
{
return Colour (red, green, blue);
}
Colour::Colour (uint8 red, uint8 green, uint8 blue, uint8 alpha) noexcept
{
argb.setARGB (alpha, red, green, blue);
}
Colour Colour::fromRGBA (uint8 red, uint8 green, uint8 blue, uint8 alpha) noexcept
{
return Colour (red, green, blue, alpha);
}
Colour::Colour (uint8 red, uint8 green, uint8 blue, float alpha) noexcept
{
argb.setARGB (ColourHelpers::floatToUInt8 (alpha), red, green, blue);
}
Colour Colour::fromFloatRGBA (float red, float green, float blue, float alpha) noexcept
{
return Colour (ColourHelpers::floatToUInt8 (red),
ColourHelpers::floatToUInt8 (green),
ColourHelpers::floatToUInt8 (blue), alpha);
}
Colour::Colour (float hue, float saturation, float brightness, float alpha) noexcept
: argb (ColourHelpers::HSB::toRGB (hue, saturation, brightness, ColourHelpers::floatToUInt8 (alpha)))
{
}
Colour Colour::fromHSV (float hue, float saturation, float brightness, float alpha) noexcept
{
return Colour (hue, saturation, brightness, alpha);
}
Colour Colour::fromHSL (float hue, float saturation, float lightness, float alpha) noexcept
{
Colour hslColour;
hslColour.argb = ColourHelpers::HSL::toRGB (hue, saturation, lightness, ColourHelpers::floatToUInt8 (alpha));
return hslColour;
}
Colour::Colour (float hue, float saturation, float brightness, uint8 alpha) noexcept
: argb (ColourHelpers::HSB::toRGB (hue, saturation, brightness, alpha))
{
}
Colour::Colour (PixelARGB argb_) noexcept
: argb (argb_)
{
}
Colour::Colour (PixelRGB rgb) noexcept
: argb (Colour (rgb.getInARGBMaskOrder()).argb)
{
}
Colour::Colour (PixelAlpha alpha) noexcept
: argb (Colour (alpha.getInARGBMaskOrder()).argb)
{
}
//==============================================================================
const PixelARGB Colour::getPixelARGB() const noexcept
{
PixelARGB p (argb);
p.premultiply();
return p;
}
uint32 Colour::getARGB() const noexcept
{
return argb.getInARGBMaskOrder();
}
//==============================================================================
bool Colour::isTransparent() const noexcept
{
return getAlpha() == 0;
}
bool Colour::isOpaque() const noexcept
{
return getAlpha() == 0xff;
}
Colour Colour::withAlpha (uint8 newAlpha) const noexcept
{
PixelARGB newCol (argb);
newCol.setAlpha (newAlpha);
return Colour (newCol);
}
Colour Colour::withAlpha (float newAlpha) const noexcept
{
jassert (newAlpha >= 0 && newAlpha <= 1.0f);
PixelARGB newCol (argb);
newCol.setAlpha (ColourHelpers::floatToUInt8 (newAlpha));
return Colour (newCol);
}
Colour Colour::withMultipliedAlpha (float alphaMultiplier) const noexcept
{
jassert (alphaMultiplier >= 0);
PixelARGB newCol (argb);
newCol.setAlpha ((uint8) jmin (0xff, roundToInt (alphaMultiplier * newCol.getAlpha())));
return Colour (newCol);
}
//==============================================================================
Colour Colour::overlaidWith (Colour src) const noexcept
{
auto destAlpha = getAlpha();
if (destAlpha <= 0)
return src;
auto invA = 0xff - (int) src.getAlpha();
auto resA = 0xff - (((0xff - destAlpha) * invA) >> 8);
if (resA <= 0)
return *this;
auto da = (invA * destAlpha) / resA;
return Colour ((uint8) (src.getRed() + ((((int) getRed() - src.getRed()) * da) >> 8)),
(uint8) (src.getGreen() + ((((int) getGreen() - src.getGreen()) * da) >> 8)),
(uint8) (src.getBlue() + ((((int) getBlue() - src.getBlue()) * da) >> 8)),
(uint8) resA);
}
Colour Colour::interpolatedWith (Colour other, float proportionOfOther) const noexcept
{
if (proportionOfOther <= 0)
return *this;
if (proportionOfOther >= 1.0f)
return other;
PixelARGB c1 (getPixelARGB());
PixelARGB c2 (other.getPixelARGB());
c1.tween (c2, (uint32) roundToInt (proportionOfOther * 255.0f));
c1.unpremultiply();
return Colour (c1);
}
//==============================================================================
float Colour::getFloatRed() const noexcept { return getRed() / 255.0f; }
float Colour::getFloatGreen() const noexcept { return getGreen() / 255.0f; }
float Colour::getFloatBlue() const noexcept { return getBlue() / 255.0f; }
float Colour::getFloatAlpha() const noexcept { return getAlpha() / 255.0f; }
//==============================================================================
void Colour::getHSB (float& h, float& s, float& v) const noexcept
{
ColourHelpers::HSB hsb (*this);
h = hsb.hue;
s = hsb.saturation;
v = hsb.brightness;
}
void Colour::getHSL (float& h, float& s, float& l) const noexcept
{
ColourHelpers::HSL hsl (*this);
h = hsl.hue;
s = hsl.saturation;
l = hsl.lightness;
}
float Colour::getHue() const noexcept { return ColourHelpers::HSB (*this).hue; }
float Colour::getSaturation() const noexcept { return ColourHelpers::HSB (*this).saturation; }
float Colour::getBrightness() const noexcept { return ColourHelpers::HSB (*this).brightness; }
float Colour::getSaturationHSL() const noexcept { return ColourHelpers::HSL (*this).saturation; }
float Colour::getLightness() const noexcept { return ColourHelpers::HSL (*this).lightness; }
Colour Colour::withHue (float h) const noexcept { ColourHelpers::HSB hsb (*this); hsb.hue = h; return hsb.toColour (*this); }
Colour Colour::withSaturation (float s) const noexcept { ColourHelpers::HSB hsb (*this); hsb.saturation = s; return hsb.toColour (*this); }
Colour Colour::withBrightness (float v) const noexcept { ColourHelpers::HSB hsb (*this); hsb.brightness = v; return hsb.toColour (*this); }
Colour Colour::withSaturationHSL (float s) const noexcept { ColourHelpers::HSL hsl (*this); hsl.saturation = s; return hsl.toColour (*this); }
Colour Colour::withLightness (float l) const noexcept { ColourHelpers::HSL hsl (*this); hsl.lightness = l; return hsl.toColour (*this); }
float Colour::getPerceivedBrightness() const noexcept
{
return std::sqrt (0.241f * square (getFloatRed())
+ 0.691f * square (getFloatGreen())
+ 0.068f * square (getFloatBlue()));
}
//==============================================================================
Colour Colour::withRotatedHue (float amountToRotate) const noexcept
{
ColourHelpers::HSB hsb (*this);
hsb.hue += amountToRotate;
return hsb.toColour (*this);
}
Colour Colour::withMultipliedSaturation (float amount) const noexcept
{
ColourHelpers::HSB hsb (*this);
hsb.saturation = jmin (1.0f, hsb.saturation * amount);
return hsb.toColour (*this);
}
Colour Colour::withMultipliedSaturationHSL (float amount) const noexcept
{
ColourHelpers::HSL hsl (*this);
hsl.saturation = jmin (1.0f, hsl.saturation * amount);
return hsl.toColour (*this);
}
Colour Colour::withMultipliedBrightness (float amount) const noexcept
{
ColourHelpers::HSB hsb (*this);
hsb.brightness = jmin (1.0f, hsb.brightness * amount);
return hsb.toColour (*this);
}
Colour Colour::withMultipliedLightness (float amount) const noexcept
{
ColourHelpers::HSL hsl (*this);
hsl.lightness = jmin (1.0f, hsl.lightness * amount);
return hsl.toColour (*this);
}
//==============================================================================
Colour Colour::brighter (float amount) const noexcept
{
jassert (amount >= 0.0f);
amount = 1.0f / (1.0f + amount);
return Colour ((uint8) (255 - (amount * (255 - getRed()))),
(uint8) (255 - (amount * (255 - getGreen()))),
(uint8) (255 - (amount * (255 - getBlue()))),
getAlpha());
}
Colour Colour::darker (float amount) const noexcept
{
jassert (amount >= 0.0f);
amount = 1.0f / (1.0f + amount);
return Colour ((uint8) (amount * getRed()),
(uint8) (amount * getGreen()),
(uint8) (amount * getBlue()),
getAlpha());
}
//==============================================================================
Colour Colour::greyLevel (float brightness) noexcept
{
auto level = ColourHelpers::floatToUInt8 (brightness);
return Colour (level, level, level);
}
//==============================================================================
Colour Colour::contrasting (float amount) const noexcept
{
return overlaidWith ((getPerceivedBrightness() >= 0.5f
? Colours::black
: Colours::white).withAlpha (amount));
}
Colour Colour::contrasting (Colour target, float minContrast) const noexcept
{
ColourHelpers::YIQ bg (*this);
ColourHelpers::YIQ fg (target);
if (std::abs (bg.y - fg.y) >= minContrast)
return target;
auto y1 = jmax (0.0f, bg.y - minContrast);
auto y2 = jmin (1.0f, bg.y + minContrast);
fg.y = (std::abs (y1 - bg.y) > std::abs (y2 - bg.y)) ? y1 : y2;
return fg.toColour();
}
Colour Colour::contrasting (Colour colour1,
Colour colour2) noexcept
{
auto b1 = colour1.getPerceivedBrightness();
auto b2 = colour2.getPerceivedBrightness();
float best = 0.0f, bestDist = 0.0f;
for (float i = 0.0f; i < 1.0f; i += 0.02f)
{
auto d1 = std::abs (i - b1);
auto d2 = std::abs (i - b2);
auto dist = jmin (d1, d2, 1.0f - d1, 1.0f - d2);
if (dist > bestDist)
{
best = i;
bestDist = dist;
}
}
return colour1.overlaidWith (colour2.withMultipliedAlpha (0.5f))
.withBrightness (best);
}
//==============================================================================
String Colour::toString() const
{
return String::toHexString ((int) argb.getInARGBMaskOrder());
}
Colour Colour::fromString (StringRef encodedColourString)
{
return Colour ((uint32) CharacterFunctions::HexParser<int>::parse (encodedColourString.text));
}
String Colour::toDisplayString (const bool includeAlphaValue) const
{
return String::toHexString ((int) (argb.getInARGBMaskOrder() & (includeAlphaValue ? 0xffffffff : 0xffffff)))
.paddedLeft ('0', includeAlphaValue ? 8 : 6)
.toUpperCase();
}
//==============================================================================
//==============================================================================
#if JUCE_UNIT_TESTS
class ColourTests : public UnitTest
{
public:
ColourTests()
: UnitTest ("Colour", UnitTestCategories::graphics)
{}
void runTest() override
{
auto testColour = [this] (Colour colour,
uint8 expectedRed, uint8 expectedGreen, uint8 expectedBlue,
uint8 expectedAlpha = 255, float expectedFloatAlpha = 1.0f)
{
expectEquals (colour.getRed(), expectedRed);
expectEquals (colour.getGreen(), expectedGreen);
expectEquals (colour.getBlue(), expectedBlue);
expectEquals (colour.getAlpha(), expectedAlpha);
expectEquals (colour.getFloatAlpha(), expectedFloatAlpha);
};
beginTest ("Constructors");
{
Colour c1;
testColour (c1, (uint8) 0, (uint8) 0, (uint8) 0, (uint8) 0, 0.0f);
Colour c2 ((uint32) 0);
testColour (c2, (uint8) 0, (uint8) 0, (uint8) 0, (uint8) 0, 0.0f);
Colour c3 ((uint32) 0xffffffff);
testColour (c3, (uint8) 255, (uint8) 255, (uint8) 255, (uint8) 255, 1.0f);
Colour c4 (0, 0, 0);
testColour (c4, (uint8) 0, (uint8) 0, (uint8) 0, (uint8) 255, 1.0f);
Colour c5 (255, 255, 255);
testColour (c5, (uint8) 255, (uint8) 255, (uint8) 255, (uint8) 255, 1.0f);
Colour c6 ((uint8) 0, (uint8) 0, (uint8) 0, (uint8) 0);
testColour (c6, (uint8) 0, (uint8) 0, (uint8) 0, (uint8) 0, 0.0f);
Colour c7 ((uint8) 255, (uint8) 255, (uint8) 255, (uint8) 255);
testColour (c7, (uint8) 255, (uint8) 255, (uint8) 255, (uint8) 255, 1.0f);
Colour c8 ((uint8) 0, (uint8) 0, (uint8) 0, 0.0f);
testColour (c8, (uint8) 0, (uint8) 0, (uint8) 0, (uint8) 0, 0.0f);
Colour c9 ((uint8) 255, (uint8) 255, (uint8) 255, 1.0f);
testColour (c9, (uint8) 255, (uint8) 255, (uint8) 255, (uint8) 255, 1.0f);
}
beginTest ("HSV");
{
// black
testColour (Colour::fromHSV (0.0f, 0.0f, 0.0f, 1.0f), 0, 0, 0);
// white
testColour (Colour::fromHSV (0.0f, 0.0f, 1.0f, 1.0f), 255, 255, 255);
// red
testColour (Colour::fromHSV (0.0f, 1.0f, 1.0f, 1.0f), 255, 0, 0);
testColour (Colour::fromHSV (1.0f, 1.0f, 1.0f, 1.0f), 255, 0, 0);
// lime
testColour (Colour::fromHSV (120 / 360.0f, 1.0f, 1.0f, 1.0f), 0, 255, 0);
// blue
testColour (Colour::fromHSV (240 / 360.0f, 1.0f, 1.0f, 1.0f), 0, 0, 255);
// yellow
testColour (Colour::fromHSV (60 / 360.0f, 1.0f, 1.0f, 1.0f), 255, 255, 0);
// cyan
testColour (Colour::fromHSV (180 / 360.0f, 1.0f, 1.0f, 1.0f), 0, 255, 255);
// magenta
testColour (Colour::fromHSV (300 / 360.0f, 1.0f, 1.0f, 1.0f), 255, 0, 255);
// silver
testColour (Colour::fromHSV (0.0f, 0.0f, 0.75f, 1.0f), 191, 191, 191);
// grey
testColour (Colour::fromHSV (0.0f, 0.0f, 0.5f, 1.0f), 128, 128, 128);
// maroon
testColour (Colour::fromHSV (0.0f, 1.0f, 0.5f, 1.0f), 128, 0, 0);
// olive
testColour (Colour::fromHSV (60 / 360.0f, 1.0f, 0.5f, 1.0f), 128, 128, 0);
// green
testColour (Colour::fromHSV (120 / 360.0f, 1.0f, 0.5f, 1.0f), 0, 128, 0);
// purple
testColour (Colour::fromHSV (300 / 360.0f, 1.0f, 0.5f, 1.0f), 128, 0, 128);
// teal
testColour (Colour::fromHSV (180 / 360.0f, 1.0f, 0.5f, 1.0f), 0, 128, 128);
// navy
testColour (Colour::fromHSV (240 / 360.0f, 1.0f, 0.5f, 1.0f), 0, 0, 128);
}
beginTest ("HSL");
{
// black
testColour (Colour::fromHSL (0.0f, 0.0f, 0.0f, 1.0f), 0, 0, 0);
// white
testColour (Colour::fromHSL (0.0f, 0.0f, 1.0f, 1.0f), 255, 255, 255);
// red
testColour (Colour::fromHSL (0.0f, 1.0f, 0.5f, 1.0f), 255, 0, 0);
testColour (Colour::fromHSL (1.0f, 1.0f, 0.5f, 1.0f), 255, 0, 0);
// lime
testColour (Colour::fromHSL (120 / 360.0f, 1.0f, 0.5f, 1.0f), 0, 255, 0);
// blue
testColour (Colour::fromHSL (240 / 360.0f, 1.0f, 0.5f, 1.0f), 0, 0, 255);
// yellow
testColour (Colour::fromHSL (60 / 360.0f, 1.0f, 0.5f, 1.0f), 255, 255, 0);
// cyan
testColour (Colour::fromHSL (180 / 360.0f, 1.0f, 0.5f, 1.0f), 0, 255, 255);
// magenta
testColour (Colour::fromHSL (300 / 360.0f, 1.0f, 0.5f, 1.0f), 255, 0, 255);
// silver
testColour (Colour::fromHSL (0.0f, 0.0f, 0.75f, 1.0f), 191, 191, 191);
// grey
testColour (Colour::fromHSL (0.0f, 0.0f, 0.5f, 1.0f), 128, 128, 128);
// maroon
testColour (Colour::fromHSL (0.0f, 1.0f, 0.25f, 1.0f), 128, 0, 0);
// olive
testColour (Colour::fromHSL (60 / 360.0f, 1.0f, 0.25f, 1.0f), 128, 128, 0);
// green
testColour (Colour::fromHSL (120 / 360.0f, 1.0f, 0.25f, 1.0f), 0, 128, 0);
// purple
testColour (Colour::fromHSL (300 / 360.0f, 1.0f, 0.25f, 1.0f), 128, 0, 128);
// teal
testColour (Colour::fromHSL (180 / 360.0f, 1.0f, 0.25f, 1.0f), 0, 128, 128);
// navy
testColour (Colour::fromHSL (240 / 360.0f, 1.0f, 0.25f, 1.0f), 0, 0, 128);
}
beginTest ("Modifiers");
{
Colour red (255, 0, 0);
testColour (red, 255, 0, 0);
testColour (red.withHue (120.0f / 360.0f), 0, 255, 0);
testColour (red.withSaturation (0.5f), 255, 128, 128);
testColour (red.withSaturationHSL (0.5f), 191, 64, 64);
testColour (red.withBrightness (0.5f), 128, 0, 0);
testColour (red.withLightness (1.0f), 255, 255, 255);
testColour (red.withRotatedHue (120.0f / 360.0f), 0, 255, 0);
testColour (red.withRotatedHue (480.0f / 360.0f), 0, 255, 0);
testColour (red.withRotatedHue (-240.0f / 360.0f), 0, 255, 0);
testColour (red.withRotatedHue (-600.0f / 360.0f), 0, 255, 0);
testColour (red.withMultipliedSaturation (0.0f), 255, 255, 255);
testColour (red.withMultipliedSaturationHSL (0.0f), 128, 128, 128);
testColour (red.withMultipliedBrightness (0.5f), 128, 0, 0);
testColour (red.withMultipliedLightness (2.0f), 255, 255, 255);
testColour (red.withMultipliedLightness (1.0f), 255, 0, 0);
testColour (red.withLightness (red.getLightness()), 255, 0, 0);
}
}
};
static ColourTests colourTests;
#endif
} // namespace juce