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/*
* Vector element rasterization, via Agg.
* Copyright (C) 2007 - 2017 Rene Rebe, ExactCODE GmbH
* Copyright (C) 2007 Susanne Klaus, ExactCODE GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2. A copy of the GNU General
* Public License can be found in the file LICENSE.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANT-
* ABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* Alternatively, commercial licensing options are available from the
* copyright holder ExactCODE GmbH Germany.
*/
#ifndef VECTORIAL_HH
#define VECTORIAL_HH
#include "Image.hh"
#include <vector>
#include "config.h"
#include "agg_math_stroke.h"
#include "agg_path_storage.h"
#include "agg_trans_affine.h"
class Path
{
public:
Path ();
~Path ();
void moveTo (double x, double y);
void addLine (double x, double y);
void addLineTo (double x, double y);
void addRect (double x, double y, double x2, double y2);
// the first is relative, the second to an an absolute 2nd point
void addArc (double rx, double ry, double angle,
double dx, double dy);
void addArcTo (double rx, double ry, double angle,
double x2, double y2);
/* TODO:
- addEllipse
*/
void addCurveTo (double, double, double, double);
// or explicitly differentiate by naming this one QuadCurve ???
void addCurveTo (double, double, double, double, double, double);
void end ();
void close ();
void clear (); // path data, not the style
void setFillColor (double r, double g, double b, double a = 1.0);
void setLineWidth (double width);
void setLineDash (double offset, const std::vector<double>& dashes);
void setLineDash (double offset, const double* dashes, int n);
typedef agg::line_cap_e line_cap_t;
void setLineCap (line_cap_t cap);
typedef agg::line_join_e line_join_t;
void setLineJoin (line_join_t join);
/* TODO:
- clip
- control anti-aliasing
(- gradients)
*/
enum filling_rule_t
{
fill_non_zero = agg::fill_non_zero,
fill_even_odd = agg::fill_even_odd,
fill_none = 0xff
};
void draw (Image& image, filling_rule_t fill = fill_none,
agg::trans_affine mtx = agg::trans_affine());
// TODO: sophisticated text API, including font to use,
// kerning, hinting, transform, etc.
// void addText (char* text, double height);
// temp. simple text draw method
bool drawText (Image& image, const char* text, double height,
const char* fontfile = 0, agg::trans_affine mtx = agg::trans_affine(),
filling_rule_t fill = fill_non_zero,
double* w = 0, double* h = 0, double* dx = 0, double* dy = 0);
bool drawTextOnPath (Image& image, const char* text, double height,
const char* fontfile = 0); // TODO: , filling_rule_t fill = fill_non_zero);
protected:
agg::path_storage path;
// quick hack ("for now")
double r, g, b, a, line_width, dashes_start_offset;
std::vector <double> dashes;
line_cap_t line_cap;
line_join_t line_join;
};
#endif
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