System.UITypes.TAlphaColorF
Delphi
TAlphaColorF = record
C++
struct DECLSPEC_DRECORD TAlphaColorF
{
public:
#define TAlphaColorF_Epsilon (1.525900E-05)
private:
static bool __fastcall SameComponent(const float Value1, const float Value2);
static float __fastcall ClampComponent(const float Value);
public:
float R;
float G;
float B;
float A;
static TAlphaColorF __fastcall Create(const float R, const float G, const float B, const float A = 1.000000E+00f)/* overload */;
static TAlphaColorF __fastcall Create(const TAlphaColor Color)/* overload */;
static TAlphaColorF __fastcall _op_Addition(const TAlphaColorF &Color1, const TAlphaColorF &Color2);
static TAlphaColorF __fastcall _op_Subtraction(const TAlphaColorF &Color1, const TAlphaColorF &Color2);
static bool __fastcall _op_Equality(const TAlphaColorF &Color1, const TAlphaColorF &Color2);
static bool __fastcall _op_Inequality(const TAlphaColorF &Color1, const TAlphaColorF &Color2);
static TAlphaColorF __fastcall _op_UnaryNegation(const TAlphaColorF &Color);
static TAlphaColorF __fastcall _op_Multiply(const TAlphaColorF &Color1, const TAlphaColorF &Color2);
static TAlphaColorF __fastcall _op_Multiply(const TAlphaColorF &Color, const float Factor);
static TAlphaColorF __fastcall _op_Multiply(const float Factor, const TAlphaColorF &Color);
static TAlphaColorF __fastcall _op_Division(const TAlphaColorF &Color, const float Factor);
TAlphaColorF __fastcall PremultipliedAlpha();
TAlphaColorF __fastcall UnpremultipliedAlpha();
TAlphaColorF __fastcall Clamp();
TAlphaColor __fastcall ToAlphaColor();
friend TAlphaColorF operator +(const TAlphaColorF &Color1, const TAlphaColorF &Color2) { return TAlphaColorF::_op_Addition(Color1, Color2); }
friend TAlphaColorF operator -(const TAlphaColorF &Color1, const TAlphaColorF &Color2) { return TAlphaColorF::_op_Subtraction(Color1, Color2); }
friend bool operator ==(const TAlphaColorF &Color1, const TAlphaColorF &Color2) { return TAlphaColorF::_op_Equality(Color1, Color2); }
friend bool operator !=(const TAlphaColorF &Color1, const TAlphaColorF &Color2) { return TAlphaColorF::_op_Inequality(Color1, Color2); }
TAlphaColorF operator -() { return TAlphaColorF::_op_UnaryNegation(*this); }
friend TAlphaColorF operator *(const TAlphaColorF &Color1, const TAlphaColorF &Color2) { return TAlphaColorF::_op_Multiply(Color1, Color2); }
friend TAlphaColorF operator *(const TAlphaColorF &Color, const float Factor) { return TAlphaColorF::_op_Multiply(Color, Factor); }
friend TAlphaColorF operator *(const float Factor, const TAlphaColorF &Color) { return TAlphaColorF::_op_Multiply(Factor, Color); }
friend TAlphaColorF operator /(const TAlphaColorF &Color, const float Factor) { return TAlphaColorF::_op_Division(Color, Factor); }
};
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
record struct |
public | System.UITypes.pas System.UITypes.hpp |
System.UITypes | System.UITypes |
Description
TAlphaColorF is a color type that treats each R, G, B, and A component as floats.
TAlphaColorF is used in operations with colors that require high precision, treating each R, G, B, and A component as floats. Overloaded operators allow adding, subtracting, and multiplying colors by using normal operations (such as "FinalColor := (FirstColor + SecondColor) / 2").
Previously, pixel format conversion relied on System.Math.Vectors.TVector3D, which it treated as color, but now pixel format conversion uses the new color types in TVector3D for that purpose.