kicad/include/colors.h

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/************/
/* colors.h */
/************/
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#ifndef _COLORS_H
#define _COLORS_H
#include <wx/wx.h>
/** The color enumeration. Also contains a flag and the alpha value in
* the upper bits
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*/
enum EDA_COLOR_T
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{
UNSPECIFIED_COLOR = -1,
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BLACK = 0,
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DARKDARKGRAY,
DARKGRAY,
LIGHTGRAY,
WHITE,
LIGHTYELLOW,
DARKBLUE,
DARKGREEN,
DARKCYAN,
DARKRED,
DARKMAGENTA,
DARKBROWN,
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BLUE,
GREEN,
CYAN,
RED,
MAGENTA,
BROWN,
LIGHTBLUE,
LIGHTGREEN,
LIGHTCYAN,
LIGHTRED,
LIGHTMAGENTA,
YELLOW,
PUREBLUE,
PUREGREEN,
PURECYAN,
PURERED,
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PUREMAGENTA,
PUREYELLOW,
NBCOLORS, ///< Number of colors
HIGHLIGHT_FLAG = ( 1<<19 ),
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MASKCOLOR = 31 ///< mask for color index into g_ColorRefs[]
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};
/// Checked cast. Use only when necessary (usually I/O)
inline EDA_COLOR_T ColorFromInt( int aColor )
{
wxASSERT( aColor >= UNSPECIFIED_COLOR && aColor < NBCOLORS );
return static_cast<EDA_COLOR_T>( aColor );
}
inline EDA_COLOR_T NextColor( EDA_COLOR_T& aColor )
{
// We have to accept NBCOLORS for loop termination conditions
wxASSERT( aColor >= UNSPECIFIED_COLOR && aColor <= NBCOLORS );
aColor = static_cast<EDA_COLOR_T>( int( aColor ) + 1 );
return aColor;
}
/// Return only the plain color part
inline EDA_COLOR_T ColorGetBase( EDA_COLOR_T aColor)
{
EDA_COLOR_T base = static_cast<EDA_COLOR_T>( aColor & MASKCOLOR );
return base;
}
/// Mix two colors in some way (hopefully like a logical OR)
EDA_COLOR_T ColorMix( EDA_COLOR_T aColor1, EDA_COLOR_T aColor2 );
/// Force the color part of a color to darkdarkgray
inline void ColorTurnToDarkDarkGray( EDA_COLOR_T *aColor )
{
*aColor = static_cast<EDA_COLOR_T>( (int(*aColor) & ~MASKCOLOR) | DARKDARKGRAY );
}
inline void ColorChangeHighlightFlag( EDA_COLOR_T *aColor, bool flag )
{
if( flag )
*aColor = static_cast<EDA_COLOR_T>( (int(*aColor) | HIGHLIGHT_FLAG ) );
else
*aColor = static_cast<EDA_COLOR_T>( (int(*aColor) & ~HIGHLIGHT_FLAG ) );
}
/**
* Function SetAlpha
* ORs in the alpha blend parameter in to a color index.
*/
inline void SetAlpha( EDA_COLOR_T* aColor, unsigned char aBlend )
{
const unsigned char MASKALPHA = 0xFF;
*aColor = static_cast<EDA_COLOR_T>((*aColor & ~(MASKALPHA << 24))
| ((aBlend & MASKALPHA) << 24));
}
/**
* Function GetAlpha
* returns the alpha blend parameter from a color index.
*/
inline unsigned char GetAlpha( EDA_COLOR_T aColor )
{
const unsigned char MASKALPHA = 0xFF;
return (aColor >> 24) & MASKALPHA;
}
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struct StructColors
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{
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unsigned char m_Blue;
unsigned char m_Green;
unsigned char m_Red;
EDA_COLOR_T m_Numcolor;
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const wxChar* m_Name;
EDA_COLOR_T m_LightColor;
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};
/// list of existing Colors
extern const StructColors g_ColorRefs[NBCOLORS];
/// Step a color to the highlighted version if the highlight flag is set
inline void ColorApplyHighlightFlag( EDA_COLOR_T *aColor )
{
EDA_COLOR_T base = ColorGetBase( *aColor );
wxASSERT( base > UNSPECIFIED_COLOR && base < NBCOLORS );
if( *aColor & HIGHLIGHT_FLAG )
*aColor = g_ColorRefs[base].m_LightColor;
}
/// Find a color by name
EDA_COLOR_T ColorByName( const wxChar *aName );
/// Find the nearest color match
EDA_COLOR_T ColorFindNearest( const wxColour &aColor );
/**
* Find the nearest color match
* @param aR is the red component of the color to be matched (in range 0-255)
* @param aG is the green component of the color to be matched (in range 0-255)
* @param aG is the blue component of the color to be matched (in range 0-255)
*/
EDA_COLOR_T ColorFindNearest( int aR, int aG, int aB );
/**
* Check if a color is light i.e. if black would be more readable than
* white on it
*/
bool ColorIsLight( EDA_COLOR_T aColor );
inline const wxChar *ColorGetName( EDA_COLOR_T aColor )
{
EDA_COLOR_T base = ColorGetBase( aColor );
wxASSERT( base > UNSPECIFIED_COLOR && base < NBCOLORS );
return g_ColorRefs[base].m_Name;
}
inline void ColorSetBrush( wxBrush *aBrush, EDA_COLOR_T aColor )
{
EDA_COLOR_T base = ColorGetBase( aColor );
wxASSERT( base > UNSPECIFIED_COLOR && base < NBCOLORS );
const StructColors &col = g_ColorRefs[base];
aBrush->SetColour( col.m_Red, col.m_Green, col.m_Blue );
}
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/**
* Function MakeColour
* returns a wxWidgets wxColor from a KiCad color index with alpha value.
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* Note that alpha support is not available on every wxWidgets platform. On
* such platform the behavior is the same as for wxALPHA_OPAQUE and that
* means the alpha value has no effect and will be ignored. wxGtk 2.8.4 is
* not supporting alpha.
* @return wxColour - given a KiCad color index with alpha value
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*/
inline wxColour MakeColour( EDA_COLOR_T aColor )
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{
#if wxCHECK_VERSION(2,8,5)
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int alpha = GetAlpha( aColor );
alpha = alpha ? alpha : wxALPHA_OPAQUE;
#endif
EDA_COLOR_T ndx = ColorGetBase( aColor );
wxASSERT( ndx > UNSPECIFIED_COLOR && ndx < NBCOLORS );
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return wxColour( g_ColorRefs[ndx].m_Red,
g_ColorRefs[ndx].m_Green,
g_ColorRefs[ndx].m_Blue
#if wxCHECK_VERSION(2,8,5)
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,(unsigned char) alpha
#endif
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);
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}
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#endif /* ifndef _COLORS_H */