4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define __SP_SVG_PARSE_C__

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include <cassert>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include <glib/gmem.h>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include <glib/gmessages.h>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include <glib/gstrfuncs.h>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "libnr/n-art-bpath.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "gnome-canvas-bpath-util.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "stringstream.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifndef M_PI

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define M_PI 3.14159265358979323846

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif /* M_PI */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define rsvg_bpath_def_new gnome_canvas_bpath_def_new

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define rsvg_bpath_def_moveto gnome_canvas_bpath_def_moveto

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define rsvg_bpath_def_lineto gnome_canvas_bpath_def_lineto

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define rsvg_bpath_def_curveto gnome_canvas_bpath_def_curveto

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#define rsvg_bpath_def_closepath gnome_canvas_bpath_def_closepath

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poetteringstruct RSVGParsePathCtx {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering GnomeCanvasBpathDef *bpath;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double cpx, cpy; /* current point */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double rpx, rpy; /* reflection point (for 's' and 't' commands) */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double spx, spy; /* beginning of current subpath point */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering char cmd; /* current command (lowercase) */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int param; /* parameter number */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering gboolean rel; /* true if relative coords */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double params[7]; /* parameters that have been parsed */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering};

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poetteringstatic void rsvg_path_arc_segment(RSVGParsePathCtx *ctx,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double xc, double yc,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double th0, double th1,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double rx, double ry, double x_axis_rotation)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering{

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double sin_th, cos_th;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double a00, a01, a10, a11;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double x1, y1, x2, y2, x3, y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double t;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double th_half;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering sin_th = sin (x_axis_rotation * (M_PI / 180.0));

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering cos_th = cos (x_axis_rotation * (M_PI / 180.0));

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* inverse transform compared with rsvg_path_arc */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a00 = cos_th * rx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a01 = -sin_th * ry;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a10 = sin_th * rx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a11 = cos_th * ry;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th_half = 0.5 * (th1 - th0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering t = (8.0 / 3.0) * sin(th_half * 0.5) * sin(th_half * 0.5) / sin(th_half);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = xc + cos (th0) - t * sin (th0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = yc + sin (th0) + t * cos (th0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x3 = xc + cos (th1);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y3 = yc + sin (th1);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x2 = x3 + t * sin (th1);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y2 = y3 - t * cos (th1);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_curveto(ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a00 * x1 + a01 * y1, a10 * x1 + a11 * y1,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a00 * x2 + a01 * y2, a10 * x2 + a11 * y2,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a00 * x3 + a01 * y3, a10 * x3 + a11 * y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering}

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poetteringstatic void rsvg_path_arc (RSVGParsePathCtx *ctx,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double rx, double ry, double x_axis_rotation,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int large_arc_flag, int sweep_flag,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double x, double y)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering{

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double sin_th, cos_th;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double a00, a01, a10, a11;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double x0, y0, x1, y1, xc, yc;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double d, sfactor, sfactor_sq;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double th0, th1, th_arc;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double px, py, pl;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int i, n_segs;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering sin_th = sin (x_axis_rotation * (M_PI / 180.0));

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering cos_th = cos (x_axis_rotation * (M_PI / 180.0));

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /*

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if(rx < 0.0) rx = -rx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if(ry < 0.0) ry = -ry;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering px = cos_th * (ctx->cpx - x) * 0.5 + sin_th * (ctx->cpy - y) * 0.5;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering py = cos_th * (ctx->cpy - y) * 0.5 - sin_th * (ctx->cpx - x) * 0.5;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering pl = (px * px) / (rx * rx) + (py * py) / (ry * ry);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if(pl > 1.0)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering pl = sqrt(pl);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rx *= pl;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ry *= pl;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* Proceed with computations as described in Appendix F.6.5 */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a00 = cos_th / rx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a01 = sin_th / rx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a10 = -sin_th / ry;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering a11 = cos_th / ry;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x0 = a00 * ctx->cpx + a01 * ctx->cpy;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y0 = a10 * ctx->cpx + a11 * ctx->cpy;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = a00 * x + a01 * y;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = a10 * x + a11 * y;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* (x0, y0) is current point in transformed coordinate space.

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering d = (x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering sfactor_sq = 1.0 / d - 0.25;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (sfactor_sq < 0) sfactor_sq = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering sfactor = sqrt (sfactor_sq);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (sweep_flag == large_arc_flag) sfactor = -sfactor;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering xc = 0.5 * (x0 + x1) - sfactor * (y1 - y0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering yc = 0.5 * (y0 + y1) + sfactor * (x1 - x0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* (xc, yc) is center of the circle. */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th0 = atan2 (y0 - yc, x0 - xc);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th1 = atan2 (y1 - yc, x1 - xc);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th_arc = th1 - th0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (th_arc < 0 && sweep_flag)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th_arc += 2 * M_PI;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering else if (th_arc > 0 && !sweep_flag)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th_arc -= 2 * M_PI;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering n_segs = (int) ceil (fabs (th_arc / (M_PI * 0.5 + 0.001)));

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering for (i = 0; i < n_segs; i++) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_path_arc_segment(ctx, xc, yc,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th0 + i * th_arc / n_segs,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering th0 + (i + 1) * th_arc / n_segs,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rx, ry, x_axis_rotation);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = x;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = y;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering}

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poetteringstatic void rsvg_parse_path_default_xy(RSVGParsePathCtx *ctx, int n_params)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering{

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int i;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->rel) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering for (i = ctx->param; i < n_params; i++) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (i > 2)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[i] = ctx->params[i - 2];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering else if (i == 1)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[i] = ctx->cpy;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering else if (i == 0)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* we shouldn't get here (usually ctx->param > 0 as

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[i] = ctx->cpx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering } else {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering for (i = ctx->param; i < n_params; i++) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[i] = 0.0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering}

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poetteringstatic void rsvg_parse_path_do_cmd(RSVGParsePathCtx *ctx, gboolean final)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering{

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double x1, y1, x2, y2, x3, y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int i;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("parse_path %c:", ctx->cmd);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering for (i = 0; i < ctx->param; i++) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print(" %f", ctx->params[i]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print (final ? ".\n" : "\n");

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering switch (ctx->cmd) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'm':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* moveto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 2

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering || final)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy (ctx, 2);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'m' moveto %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_moveto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = ctx->rpx = ctx->spx = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = ctx->rpy = ctx->spy = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cmd = 'l';

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'l':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* lineto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 2

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering || final)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy (ctx, 2);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'l' lineto %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_lineto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = ctx->rpx = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = ctx->rpy = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'c':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* curveto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if ( ( ctx->param == 6 )

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering || final )

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy (ctx, 6);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x2 = ctx->params[2];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y2 = ctx->params[3];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x3 = ctx->params[4];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y3 = ctx->params[5];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'c' curveto %g,%g %g,%g, %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_curveto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpx = x2;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpy = y2;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = x3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 's':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* smooth curveto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if ( ( ctx->param == 4 )

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering || final )

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy (ctx, 4);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = 2 * ctx->cpx - ctx->rpx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = 2 * ctx->cpy - ctx->rpy;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x2 = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y2 = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x3 = ctx->params[2];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y3 = ctx->params[3];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'s' curveto %g,%g %g,%g, %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_curveto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpx = x2;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpy = y2;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = x3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'h':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* horizontal lineto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 1) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'h' lineto %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->cpy);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_lineto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->cpy);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = ctx->rpx = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'v':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* vertical lineto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 1) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'v' lineto %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx, ctx->params[0]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_lineto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx, ctx->params[0]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = ctx->rpy = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'q':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* quadratic bezier curveto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* non-normative reference:

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 4 || final)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy (ctx, 4);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* raise quadratic bezier to cubic */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = (ctx->cpx + 2 * ctx->params[0]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = (ctx->cpy + 2 * ctx->params[1]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x3 = ctx->params[2];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y3 = ctx->params[3];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x2 = (x3 + 2 * ctx->params[0]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y2 = (y3 + 2 * ctx->params[1]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print("'q' curveto %g,%g %g,%g, %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_curveto(ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpx = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpy = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = x3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 't':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* Truetype quadratic bezier curveto */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 2 || final) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double xc, yc; /* quadratic control point */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering xc = 2 * ctx->cpx - ctx->rpx;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering yc = 2 * ctx->cpy - ctx->rpy;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* generate a quadratic bezier with control point = xc, yc */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = (ctx->cpx + 2 * xc) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = (ctx->cpy + 2 * yc) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x3 = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y3 = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x2 = (x3 + 2 * xc) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y2 = (y3 + 2 * yc) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'t' curveto %g,%g %g,%g, %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_curveto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpx = xc;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpy = yc;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = x3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering } else if (final) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param > 2) {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy(ctx, 4);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* raise quadratic bezier to cubic */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1 = (ctx->cpx + 2 * ctx->params[0]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y1 = (ctx->cpy + 2 * ctx->params[1]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x3 = ctx->params[2];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y3 = ctx->params[3];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x2 = (x3 + 2 * ctx->params[0]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering y2 = (y3 + 2 * ctx->params[1]) * (1.0 / 3.0);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'t' curveto %g,%g %g,%g, %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_curveto (ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering x1, y1, x2, y2, x3, y3);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpx = x2;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->rpy = y2;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = x3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = y3;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering } else {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_parse_path_default_xy(ctx, 2);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#ifdef VERBOSE

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering g_print ("'t' lineto %g,%g\n",

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_bpath_def_lineto(ctx->bpath,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpx = ctx->rpx = ctx->params[0];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->cpy = ctx->rpy = ctx->params[1];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering case 'a':

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (ctx->param == 7 || final)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering rsvg_path_arc(ctx,

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[0], ctx->params[1], ctx->params[2],

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering (int) ctx->params[3], (int) ctx->params[4],

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->params[5], ctx->params[6]);

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering break;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering default:

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering ctx->param = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering }

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering}

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poetteringstatic void rsvg_parse_path_data(RSVGParsePathCtx *ctx, const char *data)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering{

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int i = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double val = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering char c = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering gboolean in_num = FALSE;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering gboolean in_frac = FALSE;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering gboolean in_exp = FALSE;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering gboolean exp_wait_sign = FALSE;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int sign = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int exp = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering int exp_sign = 0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering double frac = 0.0;

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* fixme: Do better error processing: e.g. at least stop parsing as soon as we find an error.

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering for (i = 0; ; i++)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering c = data[i];

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (c >= '0' && c <= '9')

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering /* digit */

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (in_num)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering if (in_exp)

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering {

exp = (exp * 10) + c - '0';

exp_wait_sign = FALSE;

}

else if (in_frac)

val += (frac *= 0.1) * (c - '0');

else

val = (val * 10) + c - '0';

}

else

{

in_num = TRUE;

assert(!in_frac && !in_exp);

exp = 0;

exp_sign = 1;

exp_wait_sign = FALSE;

val = c - '0';

sign = 1;

}

}

else if (c == '.' && !(in_frac || in_exp))

{

if (!in_num)

{

in_num = TRUE;

assert(!in_exp);

exp = 0;

exp_sign = 1;

exp_wait_sign = FALSE;

val = 0;

sign = 1;

}

in_frac = TRUE;

frac = 1;

}

else if ((c == 'E' || c == 'e') && in_num)

{

/* fixme: Should we add `&& !in_exp' to the above condition?

in_exp = TRUE;

exp_wait_sign = TRUE;

exp = 0;

exp_sign = 1;

}

else if ((c == '+' || c == '-') && in_exp)

{

exp_sign = c == '+' ? 1 : -1;

}

else if (in_num)

{

/* end of number */

val *= sign * pow (10, exp_sign * exp);

if (ctx->rel)

{

/* Handle relative coordinates. This switch statement attempts

switch (ctx->cmd)

{

case 'l':

case 'm':

case 'c':

case 's':

case 'q':

case 't':

if ( ctx->param & 1 ) {

val += ctx->cpy; /* odd param, y */

} else {

val += ctx->cpx; /* even param, x */

}

break;

case 'a':

/* rule: sixth and seventh are x and y, rest are not

if (ctx->param == 5)

val += ctx->cpx;

else if (ctx->param == 6)

val += ctx->cpy;

break;

case 'h':

/* rule: x-relative */

val += ctx->cpx;

break;

case 'v':

/* rule: y-relative */

val += ctx->cpy;

break;

}

}

ctx->params[ctx->param++] = val;

rsvg_parse_path_do_cmd (ctx, FALSE);

if (c=='.') {

in_num = TRUE;

val = 0;

in_frac = TRUE;

in_exp = FALSE;

frac = 1;

}

else {

in_num = FALSE;

in_frac = FALSE;

in_exp = FALSE;

}

}

if (c == '\0')

break;

else if ((c == '+' || c == '-') && !exp_wait_sign)

{

sign = c == '+' ? 1 : -1;;

val = 0;

in_num = TRUE;

in_frac = FALSE;

in_exp = FALSE;

exp = 0;

exp_sign = 1;

exp_wait_sign = FALSE;

}

else if (c == 'z' || c == 'Z')

{

if (ctx->param)

rsvg_parse_path_do_cmd (ctx, TRUE);

rsvg_bpath_def_closepath (ctx->bpath);

ctx->cmd = 'm';

ctx->params[0] = ctx->cpx = ctx->rpx = ctx->spx;

ctx->params[1] = ctx->cpy = ctx->rpy = ctx->spy;

ctx->param = 2;

}

else if (c >= 'A' && c <= 'Z' && c != 'E')

{

if (ctx->param)

rsvg_parse_path_do_cmd (ctx, TRUE);

ctx->cmd = c + 'a' - 'A';

ctx->rel = FALSE;

}

else if (c >= 'a' && c <= 'z' && c != 'e')

{

if (ctx->param)

rsvg_parse_path_do_cmd (ctx, TRUE);

ctx->cmd = c;

ctx->rel = TRUE;

}

/* else c _should_ be whitespace or , */

}

}

NArtBpath *sp_svg_read_path(gchar const *str)

{

RSVGParsePathCtx ctx;

NArtBpath *bpath;

ctx.bpath = gnome_canvas_bpath_def_new ();

ctx.cpx = 0.0;

ctx.cpy = 0.0;

ctx.cmd = 0;

ctx.param = 0;

rsvg_parse_path_data (&ctx, str);

if (ctx.param && ctx.cmd != 'm') {

rsvg_parse_path_do_cmd (&ctx, TRUE);

}

gnome_canvas_bpath_def_art_finish (ctx.bpath);

bpath = g_new (NArtBpath, ctx.bpath->n_bpath);

memcpy (bpath, ctx.bpath->bpath, ctx.bpath->n_bpath * sizeof (NArtBpath));

g_assert ((bpath + ctx.bpath->n_bpath - 1)->code == NR_END);

gnome_canvas_bpath_def_unref (ctx.bpath);

return bpath;

}

gchar *sp_svg_write_path(NArtBpath const *bpath)

{

Inkscape::SVGOStringStream os;

bool closed=false;

g_return_val_if_fail (bpath != NULL, NULL);

for (int i = 0; bpath[i].code != NR_END; i++){

if (i) {

os << " ";

}

switch (bpath [i].code){

case NR_LINETO:

os << "L " << bpath[i].x3 << "," << bpath[i].y3;

break;

case NR_CURVETO:

os << "C " << bpath[i].x1 << "," << bpath[i].y1

<< " " << bpath[i].x2 << "," << bpath[i].y2

<< " " << bpath[i].x3 << "," << bpath[i].y3;

break;

case NR_MOVETO_OPEN:

case NR_MOVETO:

if (closed) {

os << "z ";

}

closed = ( bpath[i].code == NR_MOVETO );

os << "M " << bpath[i].x3 << "," << bpath[i].y3;

break;

default:

g_assert_not_reached ();

}

}

if (closed) {

os << " z ";

}

return g_strdup (os.str().c_str());

}