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LibGfx: Make most of Gfx::Color constexpr

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This commit is contained in:
Andreas Kling 2021-03-06 15:07:41 +01:00
parent ed139bee7f
commit 48347fb1c7
1 changed files with 14 additions and 14 deletions
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28
Userland/Libraries/LibGfx/Color.h
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@ -119,12 +119,12 @@ public:
m_value |= value; m_value |= value;
} }
Color with_alpha(u8 alpha) const constexpr Color with_alpha(u8 alpha) const
{ {
return Color((m_value & 0x00ffffff) | alpha << 24); return Color((m_value & 0x00ffffff) | alpha << 24);
} }
Color blend(Color source) const constexpr Color blend(Color source) const
{ {
if (!alpha() || source.alpha() == 255) if (!alpha() || source.alpha() == 255)
return source; return source;
@ -159,7 +159,7 @@ public:
#endif #endif
} }
Color multiply(const Color& other) const constexpr Color multiply(const Color& other) const
{ {
return Color( return Color(
red() * other.red() / 255, red() * other.red() / 255,
@ -168,40 +168,40 @@ public:
alpha() * other.alpha() / 255); alpha() * other.alpha() / 255);
} }
Color to_grayscale() const constexpr Color to_grayscale() const
{ {
int gray = (red() + green() + blue()) / 3; int gray = (red() + green() + blue()) / 3;
return Color(gray, gray, gray, alpha()); return Color(gray, gray, gray, alpha());
} }
Color darkened(float amount = 0.5f) const constexpr Color darkened(float amount = 0.5f) const
{ {
return Color(red() * amount, green() * amount, blue() * amount, alpha()); return Color(red() * amount, green() * amount, blue() * amount, alpha());
} }
Color lightened(float amount = 1.2f) const constexpr Color lightened(float amount = 1.2f) const
{ {
return Color(min(255, (int)((float)red() * amount)), min(255, (int)((float)green() * amount)), min(255, (int)((float)blue() * amount)), alpha()); return Color(min(255, (int)((float)red() * amount)), min(255, (int)((float)green() * amount)), min(255, (int)((float)blue() * amount)), alpha());
} }
Color inverted() const constexpr Color inverted() const
{ {
return Color(~red(), ~green(), ~blue(), alpha()); return Color(~red(), ~green(), ~blue(), alpha());
} }
Color xored(const Color& other) const constexpr Color xored(const Color& other) const
{ {
return Color(((other.m_value ^ m_value) & 0x00ffffff) | (m_value & 0xff000000)); return Color(((other.m_value ^ m_value) & 0x00ffffff) | (m_value & 0xff000000));
} }
RGBA32 value() const { return m_value; } constexpr RGBA32 value() const { return m_value; }
bool operator==(const Color& other) const constexpr bool operator==(const Color& other) const
{ {
return m_value == other.m_value; return m_value == other.m_value;
} }
bool operator!=(const Color& other) const constexpr bool operator!=(const Color& other) const
{ {
return m_value != other.m_value; return m_value != other.m_value;
} }
@ -210,7 +210,7 @@ public:
String to_string_without_alpha() const; String to_string_without_alpha() const;
static Optional<Color> from_string(const StringView&); static Optional<Color> from_string(const StringView&);
HSV to_hsv() const constexpr HSV to_hsv() const
{ {
HSV hsv; HSV hsv;
double r = static_cast<double>(red()) / 255.0; double r = static_cast<double>(red()) / 255.0;
@ -246,12 +246,12 @@ public:
return hsv; return hsv;
} }
static Color from_hsv(double hue, double saturation, double value) static constexpr Color from_hsv(double hue, double saturation, double value)
{ {
return from_hsv({ hue, saturation, value }); return from_hsv({ hue, saturation, value });
} }
static Color from_hsv(const HSV& hsv) static constexpr Color from_hsv(const HSV& hsv)
{ {
VERIFY(hsv.hue >= 0.0 && hsv.hue < 360.0); VERIFY(hsv.hue >= 0.0 && hsv.hue < 360.0);
VERIFY(hsv.saturation >= 0.0 && hsv.saturation <= 1.0); VERIFY(hsv.saturation >= 0.0 && hsv.saturation <= 1.0);