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SimpleColorIterator added

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This commit is contained in:
Uwe Rathmann 2022-12-29 08:20:29 +01:00
parent 8c6f0ffd60
commit 14cee228e0
1 changed files with 37 additions and 1 deletions
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38
src/nodes/QskBoxRendererColorMap.h
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@ -88,6 +88,42 @@ namespace QskVertex
}
};
class SimpleColorIterator : public ColorIterator
{
public:
inline SimpleColorIterator( const QColor& color )
: m_color1( color )
, m_color2( color )
, m_isMonochrome( true )
{
}
inline SimpleColorIterator( const QColor& color1, const QColor& color2 )
: m_color1( color1 )
, m_color2( color2 )
, m_isMonochrome( false )
{
}
inline Color colorAt( qreal value ) const
{
/*
When having only 1 color or 2 colors at 0.0/1.0 only we do not
need gradient lines. So all what this iterator has to provide is
an implementation of colorAt to colourize the contour lines.
*/
if ( m_isMonochrome )
return m_color1;
return m_color1.interpolatedTo( m_color2, value );
}
private:
const Color m_color1, m_color2;
const bool m_isMonochrome;
};
class GradientColorIterator : public ColorIterator
{
public:
@ -197,7 +233,7 @@ namespace QskVertex
{
if ( gradient.stepCount() == 1 )
{
GradientColorIterator colorIt( gradient.stops() );
SimpleColorIterator colorIt( gradient.rgbStart(), gradient.rgbEnd() );
line = fillOrdered( contourIt, colorIt, line );
}
else