svgtiny_internal.h

   1 /*
   2  * This file is part of Libsvgtiny
   3  * Licensed under the MIT License,
   4  *                http://opensource.org/licenses/mit-license.php
   5  * Copyright 2008 James Bursa <james@semichrome.net>
   6  */
   7
   8 #ifndef SVGTINY_INTERNAL_H
   9 #define SVGTINY_INTERNAL_H
  10
  11 struct svgtiny_gradient_stop {
  12         float offset;
  13         svgtiny_colour color;
  14 };
  15
  16 #define svgtiny_MAX_STOPS 10
  17 #define svgtiny_LINEAR_GRADIENT 0x2000000
  18
  19 struct svgtiny_parse_state {
  20         struct svgtiny_diagram *diagram;
  21         xmlDoc *document;
  22
  23         float viewport_width;
  24         float viewport_height;
  25
  26         /* current transformation matrix */
  27         struct {
  28                 float a, b, c, d, e, f;
  29         } ctm;
  30
  31         /*struct css_style style;*/
  32
  33         /* paint attributes */
  34         svgtiny_colour fill;
  35         svgtiny_colour stroke;
  36         int stroke_width;
  37
  38         /* gradients */
  39         unsigned int linear_gradient_stop_count;
  40         const char *gradient_x1, *gradient_y1, *gradient_x2, *gradient_y2;
  41         struct svgtiny_gradient_stop gradient_stop[svgtiny_MAX_STOPS];
  42 };
  43
  44
  45 /* svgtiny.c */
  46 float svgtiny_parse_length(const char *s, int viewport_size,
  47                 const struct svgtiny_parse_state state);
  48 void svgtiny_parse_color(const char *s, svgtiny_colour *c,
  49                 struct svgtiny_parse_state *state);
  50 struct svgtiny_shape *svgtiny_add_shape(struct svgtiny_parse_state *state);
  51 void svgtiny_transform_path(float *p, unsigned int n,
  52                 struct svgtiny_parse_state *state);
  53
  54 /* svgtiny_gradient.c */
  55 void svgtiny_find_gradient(const char *id, struct svgtiny_parse_state *state);
  56 svgtiny_code svgtiny_add_path_linear_gradient(float *p, unsigned int n,
  57                 struct svgtiny_parse_state *state);
  58 xmlNode *svgtiny_find_element_by_id(xmlNode *node, const char *id);
  59
  60 /* colors.gperf */
  61 const struct svgtiny_named_color *
  62                 svgtiny_color_lookup(register const char *str,
  63                                 register unsigned int len);
  64
  65 #endif