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lighter/darker added

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This commit is contained in:
Uwe Rathmann 2020-08-15 13:05:25 +02:00
parent 5b6f070d7d
commit 3519e92e91
2 changed files with 23 additions and 1 deletions
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19
src/common/QskRgbValue.cpp
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@ -153,3 +153,22 @@ QRgb QskRgbValue::rgb( Qt::GlobalColor color )
return rgbValues[ color ]; return rgbValues[ color ];
} }
QRgb QskRgbValue::lighter( QRgb rgb, int factor ) noexcept
{
if ( factor <= 0 )
return rgb;
// guess we can find a faster implementation without using QColor TODO ...
return QColor::fromRgba( rgb ).lighter( factor ).rgba();
}
QRgb QskRgbValue::darker( QRgb rgb, int factor ) noexcept
{
if ( factor <= 0 )
return rgb;
// guess we can find a faster implementation without using QColor TODO ...
return QColor::fromRgba( rgb ).darker( factor ).rgba();
}

5
src/common/QskRgbValue.h
View File

@ -437,7 +437,7 @@
namespace QskRgbValue namespace QskRgbValue
{ {
#define RGB( name, value ) static constexpr const unsigned int name = value; #define RGB( name, value ) static constexpr const QRgb name = value;
QSK_RGB_VALUES QSK_RGB_VALUES
#undef RGB #undef RGB
@ -460,6 +460,9 @@ namespace QskRgbValue
{ {
return ( rgb & ColorMask ) | ( ( static_cast< uint >( alpha ) & 0xffu ) << 24 ); return ( rgb & ColorMask ) | ( ( static_cast< uint >( alpha ) & 0xffu ) << 24 );
} }
QSK_EXPORT QRgb lighter( QRgb, int factor = 150 ) noexcept;
QSK_EXPORT QRgb darker( QRgb, int factor = 200 ) noexcept;
} }
#endif #endif