diff options
Diffstat (limited to 'converter/other/pamtosvg/output-svg.c')
| -rw-r--r-- | converter/other/pamtosvg/output-svg.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/converter/other/pamtosvg/output-svg.c b/converter/other/pamtosvg/output-svg.c new file mode 100644 index 00000000..53a8d4fd --- /dev/null +++ b/converter/other/pamtosvg/output-svg.c @@ -0,0 +1,130 @@ +/* output-svg.h - output in SVG format + + Copyright (C) 1999, 2000, 2001 Bernhard Herzog + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License + as published by the Free Software Foundation; either version 2.1 of + the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. */ + +#include "spline.h" +#include "output-svg.h" + + + +static void +outSplineList(FILE * const fileP, + spline_list_type const splineList, + unsigned int const height) { + + unsigned splineSeq; + + for (splineSeq = 0; + splineSeq < SPLINE_LIST_LENGTH(splineList); + ++splineSeq) { + + spline_type const spline = SPLINE_LIST_ELT(splineList, splineSeq); + + if (SPLINE_DEGREE(spline) == LINEARTYPE) { + fprintf(fileP, "L%g %g", + END_POINT(spline).x, height - END_POINT(spline).y); + } else + fprintf(fileP, "C%g %g %g %g %g %g", + CONTROL1(spline).x, height - CONTROL1(spline).y, + CONTROL2(spline).x, height - CONTROL2(spline).y, + END_POINT(spline).x, height - END_POINT(spline).y); + } +} + + + +static void +out_splines(FILE * const fileP, + spline_list_array_type const shape, + unsigned int const height) { + + unsigned listSeq; + pixel lastColor; + + PPM_ASSIGN(lastColor, 0, 0, 0); + + for (listSeq = 0; + listSeq < SPLINE_LIST_ARRAY_LENGTH(shape); + ++listSeq) { + + spline_list_type const splineList = + SPLINE_LIST_ARRAY_ELT(shape, listSeq); + spline_type const first = SPLINE_LIST_ELT(splineList, 0); + + if (listSeq == 0 || !PPM_EQUAL(splineList.color, lastColor)) { + if (listSeq > 0) { + /* Close previous <path> element */ + if (!(shape.centerline || splineList.open)) + fputs("z", fileP); + fputs("\"/>\n", fileP); + } + /* Open new <path> element */ + fprintf(fileP, "<path style=\"%s:#%02x%02x%02x; %s:none;\" d=\"", + (shape.centerline || splineList.open) ? "stroke" : "fill", + PPM_GETR(splineList.color), + PPM_GETG(splineList.color), + PPM_GETB(splineList.color), + (shape.centerline || splineList.open) ? "fill" : "stroke"); + } + fprintf(fileP, "M%g %g", + START_POINT(first).x, height - START_POINT(first).y); + + outSplineList(fileP, splineList, height); + + lastColor = splineList.color; + } + + if (SPLINE_LIST_ARRAY_LENGTH(shape) > 0) { + spline_list_type const lastSplineList = + SPLINE_LIST_ARRAY_ELT(shape, SPLINE_LIST_ARRAY_LENGTH(shape)-1); + + if (!(shape.centerline || lastSplineList.open)) + fputs("z", fileP); + + /* Close last <path> element */ + fputs("\"/>\n", fileP); + } +} + + + +int +output_svg_writer(FILE * const fileP, + const char * const name, + int const llx, + int const lly, + int const urx, + int const ury, + at_output_opts_type * const opts, + at_spline_list_array_type const shape, + at_msg_func msg_func, + void * const msg_data) { + + int const width = urx - llx; + int const height = ury - lly; + + fputs("<?xml version=\"1.0\" standalone=\"yes\"?>\n", fileP); + + fprintf(fileP, "<svg width=\"%d\" height=\"%d\">\n", width, height); + + out_splines(fileP, shape, height); + + fputs("</svg>\n", fileP); + + return 0; +} |