trunk/src/josm_elemstyles.h

/*
 * Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
 *
 * This file is part of OSM2Go.
 *
 * OSM2Go is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OSM2Go 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OSM2Go.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef JOSM_ELEMSTYLES_H
#define JOSM_ELEMSTYLES_H

// Ratio conversions

float scaledn_to_zoom(const float scaledn);
float zoom_to_scaledn(const float zoom);


typedef enum { 
  ES_TYPE_NONE = 0, 
  ES_TYPE_LINE, 
  ES_TYPE_AREA,
  ES_TYPE_LINE_MOD
} elemstyle_type_t;

typedef gulong elemstyle_color_t;

/* from elemstyles.xml:
 *  line attributes
 *  - width absolute width in pixel in every zoom level
 *  - realwidth relative width which will be scaled in meters, integer
 *  - colour
 */

typedef struct {
  gint width;
  elemstyle_color_t color;
  gboolean dashed;

  struct {
    gboolean valid;
    gint width;
  } real;

  struct {
    gboolean valid;
    gint width;
    elemstyle_color_t color;
  } bg;

  float zoom_max;   // XXX probably belongs in elemstyle_s
} elemstyle_line_t;

/* attribute modifiers */
typedef enum { 
  ES_MOD_NONE = 0,  // don't change attribute
  ES_MOD_ADD,       // add constant value
  ES_MOD_SUB,       // subtract constant value
  ES_MOD_PERCENT    // scale by x percent
} elemstyle_mod_mode_t;

/* a width with modifier */
typedef struct {
  elemstyle_mod_mode_t mod;
  gint width;
} elemstyle_width_mod_t;


typedef struct {
  elemstyle_width_mod_t line, bg;
} elemstyle_line_mod_t;

typedef struct {
  elemstyle_color_t color;
  float zoom_max;   // XXX probably belongs in elemstyle_s
} elemstyle_area_t;

typedef struct {
  gboolean annotate;
  char *filename;
  float zoom_max;   // XXX probably belongs in elemstyle_s
} elemstyle_icon_t;

typedef struct elemstyle_s {
  struct {
    char *key;
    char *value;
  } condition;

  elemstyle_type_t type;

  union {
    elemstyle_line_mod_t *line_mod;
    elemstyle_line_t *line;
    elemstyle_area_t *area;
  };
  
  elemstyle_icon_t *icon;

  struct elemstyle_s *next;
} elemstyle_t;

elemstyle_t *josm_elemstyles_load(char *name);
void josm_elemstyles_free(elemstyle_t *elemstyles);
gboolean parse_color(xmlNode *a_node, char *name, elemstyle_color_t *color);

void josm_elemstyles_colorize_node(struct style_s *style, node_t *node);
void josm_elemstyles_colorize_way(struct style_s *style, way_t *way);
void josm_elemstyles_colorize_world(struct style_s *style, osm_t *osm);

#endif // JOSM_ELEMSTYLES_H

// vim:et:ts=8:sw=2:sts=2:ai
1	harbaum	1	/*
2			* Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
3			*
4			* This file is part of OSM2Go.
5			*
6			* OSM2Go is free software: you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation, either version 3 of the License, or
9			* (at your option) any later version.
10			*
11			* OSM2Go is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with OSM2Go. If not, see <http://www.gnu.org/licenses/>.
18			*/
19
20			#ifndef JOSM_ELEMSTYLES_H
21			#define JOSM_ELEMSTYLES_H
22
23			// Ratio conversions
24
25			float scaledn_to_zoom(const float scaledn);
26			float zoom_to_scaledn(const float zoom);
27
28
29			typedef enum {
30			ES_TYPE_NONE = 0,
31			ES_TYPE_LINE,
32	harbaum	15	ES_TYPE_AREA,
33			ES_TYPE_LINE_MOD
34	harbaum	1	} elemstyle_type_t;
35
36			typedef gulong elemstyle_color_t;
37
38			/* from elemstyles.xml:
39			* line attributes
40			* - width absolute width in pixel in every zoom level
41			* - realwidth relative width which will be scaled in meters, integer
42			* - colour
43			*/
44
45			typedef struct {
46			gint width;
47			elemstyle_color_t color;
48	achadwick	13	gboolean dashed;
49	harbaum	1
50			struct {
51			gboolean valid;
52			gint width;
53			} real;
54
55			struct {
56			gboolean valid;
57			gint width;
58			elemstyle_color_t color;
59			} bg;
60
61			float zoom_max; // XXX probably belongs in elemstyle_s
62			} elemstyle_line_t;
63
64	harbaum	15	/* attribute modifiers */
65			typedef enum {
66			ES_MOD_NONE = 0, // don't change attribute
67			ES_MOD_ADD, // add constant value
68			ES_MOD_SUB, // subtract constant value
69			ES_MOD_PERCENT // scale by x percent
70			} elemstyle_mod_mode_t;
71
72			/* a width with modifier */
73	harbaum	1	typedef struct {
74	harbaum	15	elemstyle_mod_mode_t mod;
75			gint width;
76			} elemstyle_width_mod_t;
77
78
79			typedef struct {
80			elemstyle_width_mod_t line, bg;
81			} elemstyle_line_mod_t;
82
83			typedef struct {
84	harbaum	1	elemstyle_color_t color;
85			float zoom_max; // XXX probably belongs in elemstyle_s
86			} elemstyle_area_t;
87
88			typedef struct {
89			gboolean annotate;
90			char *filename;
91			float zoom_max; // XXX probably belongs in elemstyle_s
92			} elemstyle_icon_t;
93
94			typedef struct elemstyle_s {
95			struct {
96			char *key;
97			char *value;
98			} condition;
99
100			elemstyle_type_t type;
101
102			union {
103	harbaum	15	elemstyle_line_mod_t *line_mod;
104	harbaum	1	elemstyle_line_t *line;
105			elemstyle_area_t *area;
106			};
107
108			elemstyle_icon_t *icon;
109
110			struct elemstyle_s *next;
111			} elemstyle_t;
112
113			elemstyle_t josm_elemstyles_load(char name);
114			void josm_elemstyles_free(elemstyle_t *elemstyles);
115			gboolean parse_color(xmlNode a_node, char name, elemstyle_color_t *color);
116
117			void josm_elemstyles_colorize_node(struct style_s style, node_t node);
118			void josm_elemstyles_colorize_way(struct style_s style, way_t way);
119			void josm_elemstyles_colorize_world(struct style_s style, osm_t osm);
120
121			#endif // JOSM_ELEMSTYLES_H
122	achadwick	13
123			// vim:et:ts=8:sw=2:sts=2:ai