src/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 #include <stdbool.h>
  12
  13 struct svgtiny_gradient_stop {
  14         float offset;
  15         svgtiny_colour color;
  16 };
  17
  18 #define svgtiny_MAX_STOPS 10
  19 #define svgtiny_LINEAR_GRADIENT 0x2000000
  20
  21 struct svgtiny_parse_state {
  22         struct svgtiny_diagram *diagram;
  23         xmlDoc *document;
  24
  25         float viewport_width;
  26         float viewport_height;
  27
  28         /* current transformation matrix */
  29         struct {
  30                 float a, b, c, d, e, f;
  31         } ctm;
  32
  33         /*struct css_style style;*/
  34
  35         /* paint attributes */
  36         svgtiny_colour fill;
  37         svgtiny_colour stroke;
  38         int stroke_width;
  39
  40         /* gradients */
  41         unsigned int linear_gradient_stop_count;
  42         const char *gradient_x1, *gradient_y1, *gradient_x2, *gradient_y2;
  43         struct svgtiny_gradient_stop gradient_stop[svgtiny_MAX_STOPS];
  44         bool gradient_user_space_on_use;
  45         struct {
  46                 float a, b, c, d, e, f;
  47         } gradient_transform;
  48 };
  49
  50 struct svgtiny_list;
  51
  52 /* svgtiny.c */
  53 float svgtiny_parse_length(const char *s, int viewport_size,
  54                 const struct svgtiny_parse_state state);
  55 void svgtiny_parse_color(const char *s, svgtiny_colour *c,
  56                 struct svgtiny_parse_state *state);
  57 void svgtiny_parse_transform(char *s, float *ma, float *mb,
  58                 float *mc, float *md, float *me, float *mf);
  59 struct svgtiny_shape *svgtiny_add_shape(struct svgtiny_parse_state *state);
  60 void svgtiny_transform_path(float *p, unsigned int n,
  61                 struct svgtiny_parse_state *state);
  62
  63 /* svgtiny_gradient.c */
  64 void svgtiny_find_gradient(const char *id, struct svgtiny_parse_state *state);
  65 svgtiny_code svgtiny_add_path_linear_gradient(float *p, unsigned int n,
  66                 struct svgtiny_parse_state *state);
  67 xmlNode *svgtiny_find_element_by_id(xmlNode *node, const char *id);
  68
  69 /* svgtiny_list.c */
  70 struct svgtiny_list *svgtiny_list_create(size_t item_size);
  71 unsigned int svgtiny_list_size(struct svgtiny_list *list);
  72 svgtiny_code svgtiny_list_resize(struct svgtiny_list *list,
  73                 unsigned int new_size);
  74 void *svgtiny_list_get(struct svgtiny_list *list,
  75                 unsigned int i);
  76 void *svgtiny_list_push(struct svgtiny_list *list);
  77 void svgtiny_list_free(struct svgtiny_list *list);
  78
  79 /* colors.gperf */
  80 const struct svgtiny_named_color *
  81                 svgtiny_color_lookup(register const char *str,
  82                                 register unsigned int len);
  83
  84 #endif