| author | Francesco Abbate <francesco.bbt@gmail.com> | 2011年12月06日 22:26:34 +0100 |
|---|---|---|
| committer | Francesco Abbate <francesco.bbt@gmail.com> | 2011年12月06日 22:26:34 +0100 |
| commit | 66988c8e83094758e55282c51f45a01933bcc0c9 (patch) | |
| tree | 4a90ebd78fe31080e719c23c7f371bff9597d1f0 /agg-plot/canvas_svg.h | |
| parent | c9a356e30fcd55e51bdfc303ce47921b09fab2b4 (diff) | |
| download | gsl-shell-66988c8e83094758e55282c51f45a01933bcc0c9.tar.gz | |
| -rw-r--r-- | agg-plot/canvas_svg.h | 80 |
diff --git a/agg-plot/canvas_svg.h b/agg-plot/canvas_svg.h new file mode 100644 index 00000000..b5d70332 --- /dev/null +++ b/agg-plot/canvas_svg.h @@ -0,0 +1,80 @@ +#ifndef CANVAS_SVG_H +#define CANVAS_SVG_H + +#include <stdio.h> + +#include <agg_trans_affine.h> +#include <agg_color_rgba.h> + +#include "defs.h" +#include "strpp.h" +#include "drawable.h" +#include "draw_svg.h" + +static const char *svg_header = \ + "<?xml version=\"1.0\" standalone=\"no\"?>\n" \ + "<svg\n" \ + " xmlns:dc=\"http://purl.org/dc/elements/1.1/\"\n" \ + " xmlns:cc=\"http://creativecommons.org/ns#\"\n" \ + " xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n" \ + " xmlns:svg=\"http://www.w3.org/2000/svg\"\n" \ + " xmlns=\"http://www.w3.org/2000/svg\"\n" \ + " version=\"1.1\"\n" \ + " width=\"%g\"\n" \ + " height=\"%g\"\n" \ + " id=\"svg2\">\n" \ + " <g id=\"layer1\" font-family=\"Helvetica\">\n"; + +static const char *svg_end = " </g>\n" "</svg>\n"; + +class canvas_svg { +public: + canvas_svg(FILE *f) : m_output(f), m_current_id(0) { } + + void clip_box(const agg::rect_base<int>& clip) { } + + void reset_clipping() { } + + template <class VertexSource> + void draw(VertexSource& vs, agg::rgba8 c) + { + str path; + svg_coords_from_vs(&vs, path); + str s = svg_fill_path(path, m_current_id++, c); + writeln(m_output, s, " "); + } + + template <class VertexSource> + void draw_outline(VertexSource& vs, agg::rgba8 c) + { + str path; + svg_coords_from_vs(&vs, path); + str s = svg_stroke_path(path, default_stroke_width, m_current_id++, c); + writeln(m_output, s, " "); + } + + void write_header(double w, double h) { fprintf(m_output, svg_header, w, h); } + void write_end() { fputs(svg_end, m_output); } + + static void writeln(FILE* f, str& s, const char* indent = 0) { + if (str_is_null(&s)) + return; + if (indent) + fputs(indent, f); + fprintf(f, "%s\n", s.cstr()); + } + + static const double default_stroke_width; + +private: + FILE *m_output; + int m_current_id; +}; + +template <> void canvas_svg::draw<svg_vs>(svg_vs& vs, agg::rgba8 c); +template <> void canvas_svg::draw_outline<svg_vs>(svg_vs& vs, agg::rgba8 c); + +template <> void canvas_svg::draw<drawable>(drawable& vs, agg::rgba8 c); +template <> void canvas_svg::draw_outline<drawable>(drawable& vs, agg::rgba8 c); + +#endif |