112 lines
4.3 KiB
C++
112 lines
4.3 KiB
C++
//| Copyright: (C) 2020-2024 Kevin Larke <contact AT larke DOT org>
|
|
//| License: GNU GPL version 3.0 or above. See the accompanying LICENSE file.
|
|
#ifndef cwSvg_h
|
|
#define cwSvg_h
|
|
|
|
namespace cw
|
|
{
|
|
namespace svg
|
|
{
|
|
typedef handle<struct svg_str> handle_t;
|
|
|
|
enum
|
|
{
|
|
kStandardColorMapId,
|
|
kGrayScaleColorMapId,
|
|
kInvGrayScaleColorMapId,
|
|
kHeatColorMapId,
|
|
kBaseUserColorMapId
|
|
};
|
|
|
|
rc_t create( handle_t& h );
|
|
rc_t destroy( handle_t& h );
|
|
|
|
rc_t install_color_map( handle_t h, const unsigned* colorV, unsigned colorN, unsigned colorId=kBaseUserColorMapId );
|
|
|
|
void offset( handle_t h, double dx, double dy );
|
|
unsigned color( handle_t h, unsigned colorMapId, double colorMin, double colorMax, double colorValue );
|
|
unsigned color( handle_t h, unsigned colorMapId, unsigned colorIdx );
|
|
|
|
rc_t _set_attr( handle_t h, const char* selectorStr, const char* attrLabel, const char* value, const char* suffix );
|
|
rc_t _set_attr( handle_t h, const char* selectorStr, const char* attrLabel, const unsigned& value, const char* suffix );
|
|
rc_t _set_attr( handle_t h, const char* selectorStr, const char* attrLabel, const int& value, const char* suffix );
|
|
rc_t _set_attr( handle_t h, const char* selectorStr, const char* attrLabel, const double& value, const char* suffix );
|
|
|
|
inline rc_t _parse_attr( handle_t h, const char* selectorStr ){ return kOkRC; }
|
|
|
|
template<typename T, typename ...ARGS>
|
|
rc_t _parse_attr( handle_t h, const char* selectorStr, const char* attrLabel, const T& val, const char* suffix, ARGS&&... args )
|
|
{
|
|
rc_t rc;
|
|
if((rc = _set_attr(h, selectorStr, attrLabel, val, suffix)) == kOkRC )
|
|
rc =_parse_attr( h, selectorStr, std::forward<ARGS>(args)...);
|
|
|
|
return rc;
|
|
}
|
|
|
|
// Install a CSS selector record.
|
|
// Style attributes are encoded as triples "<label>" <value> "<suffix>".
|
|
// Color values are encoded with the <suffix> = "rgb"
|
|
template< typename ...ARGS>
|
|
rc_t install_css( handle_t h, const char* selectorStr, ARGS&&... args )
|
|
{ return _parse_attr( h, selectorStr, std::forward<ARGS>(args)...); }
|
|
|
|
rc_t _rect( handle_t h, double x, double y, double ww, double hh );
|
|
|
|
// Draw a rectangle. The variable arg. list must be <argId>,<value> pairs.
|
|
// All attributes assigned here will be encoded inside the SVG element tag.
|
|
// Attributes are encoded as triples "<label>" <value> "<suffix>".
|
|
// Color values are encoded with the <suffix> = "rgb"
|
|
template<typename ...ARGS>
|
|
rc_t rect( handle_t h, double x, double y, double ww, double hh, ARGS&&... args )
|
|
{
|
|
_rect( h, x, y, ww, hh );
|
|
return _parse_attr( h, nullptr, std::forward<ARGS>(args)...);
|
|
}
|
|
|
|
rc_t _line( handle_t h, double x0, double y0, double x1, double y1 );
|
|
|
|
|
|
// Draw a line. The variable arg. list must be <argId>,<value> pairs.
|
|
template<typename ...ARGS>
|
|
rc_t line( handle_t h, double x0, double y0, double x1, double y1, ARGS&&... args )
|
|
{
|
|
_line( h, x0, y0, x1, y1 );
|
|
return _parse_attr( h, nullptr, std::forward<ARGS>(args)...);
|
|
}
|
|
|
|
rc_t _pline( handle_t h, const double* yV, unsigned n, const double* xV );
|
|
|
|
// Draw a poly-line. The variable arg. list must be <argId>,<value> pairs. Set xV to nullptr to use index as x.
|
|
template<typename ...ARGS>
|
|
rc_t pline( handle_t h, const double* yV, unsigned n, const double* xV, ARGS&&... args )
|
|
{
|
|
_pline( h, yV, n, xV );
|
|
return _parse_attr( h, nullptr, std::forward<ARGS>(args)...);
|
|
}
|
|
|
|
rc_t _text( handle_t h, double x, double y, const char* text );
|
|
|
|
// Draw text. The variable arg. list must be <argId>,<value> pairs.
|
|
template<typename ...ARGS>
|
|
rc_t text( handle_t h, double x, double y, const char* text, ARGS&&... args )
|
|
{
|
|
_text( h, x, y, text );
|
|
return _parse_attr( h, nullptr, std::forward<ARGS>(args)...);
|
|
}
|
|
|
|
|
|
rc_t image( handle_t h, const float* xM, unsigned rowN, unsigned colN, unsigned pixSize, unsigned cmapId );
|
|
|
|
// Write the SVG file.
|
|
enum { kStandAloneFl=0x01, kPanZoomFl=0x02, kGenCssFileFl=0x04 };
|
|
rc_t write( handle_t h, const char* outFn, const char* cssFn, unsigned flags, double bordL=5, double bordT=5, double bordR=5, double bordB=5 );
|
|
|
|
rc_t test( const object_t* cfg );
|
|
|
|
}
|
|
}
|
|
|
|
|
|
#endif
|