2 * Hic Est Leo -- Symbols
4 * (c) 2014 Martin Mares <mj@ucw.cz>
10 #include <ucw/mempool.h>
11 #include <ucw/stkstring.h>
19 #undef CLAMP // FIXME: Fix in libucw?
20 #define CLAMP(x,min,max) ({ typeof(x) _t=x; (_t < min) ? min : (_t > max) ? max : _t; }) /** Clip a number @x to interval [@min,@max] **/
22 static struct symbolizer symbolizer_disabled = {
26 static struct symbolizer *symbolizers[] = {
27 [SYMBOLIZER_INVALID] = NULL,
28 [SYMBOLIZER_POINT] = &symbolizer_point,
29 [SYMBOLIZER_ICON] = &symbolizer_icon,
30 [SYMBOLIZER_LINE] = &symbolizer_line,
31 [SYMBOLIZER_AREA] = &symbolizer_area,
32 [SYMBOLIZER_TEXT] = &symbolizer_text,
33 [SYMBOLIZER_LINEIMG] = &symbolizer_lineimg,
34 [SYMBOLIZER_DISABLED] = &symbolizer_disabled,
37 struct mempool *sym_mp;
44 static struct sym_planned *sym_planned;
46 static inline bool sym_before(struct sym_planned *x, struct sym_planned *y)
48 COMPARE_LT(x->zindex, y->zindex);
49 COMPARE_LT(x->sym->o->type, y->sym->o->type);
50 COMPARE_LT(x->sym->o->id, y->sym->o->id);
54 #define ASORT_PREFIX(x) sym_##x
55 #define ASORT_KEY_TYPE struct sym_planned
56 #define ASORT_LT(_x,_y) sym_before(&(_x), &(_y))
57 #include <ucw/sorter/array-simple.h>
61 sym_mp = mp_new(65536);
62 GARY_INIT(sym_planned, 0);
64 for (uns i = SYMBOLIZER_INVALID + 1; i < SYMBOLIZER_MAX; i++)
65 if (symbolizers[i]->init)
66 (*symbolizers[i]->init)();
69 void *sym_new(enum symbolizer_type type, struct osm_object *o, size_t size)
71 struct symbol *s = mp_alloc_zero(sym_mp, size);
77 void sym_plan(struct symbol *sym, z_index_t zindex)
79 struct sym_planned *p = GARY_PUSH(sym_planned);
82 if (debug_dump_symbols)
83 printf("--> planning symbol <%s> with z-index %u for %s\n",
84 symbolizers[sym->type]->name, zindex, STK_OSM_NAME(sym->o));
87 z_index_t sym_zindex(struct osm_object *o, struct style_info *si, double default_mzi)
90 style_get_number(si, PROP_Z_INDEX, &zi);
91 double zi2 = CLAMP(zi, -100, 100);
93 osm_obj_warn(o, "z-index clipped from %.6g to %.6g", zi, zi2);
96 // FIXME: object-z-index not used yet
98 style_get_number(si, PROP_OBJECT_Z_INDEX, &ozi);
99 double ozi2 = CLAMP(ozi, -100, 100);
101 osm_obj_warn(o, "object-z-index clipped from %.6g to %.6g", ozi, ozi2);
104 double mzi = default_mzi;
107 // FIXME: This is a terrible hack.
108 style_get_number(si, PROP_CASING_MAJOR_Z_INDEX, &mzi);
110 else if (mzi == 4.9 || mzi == 5)
112 // FIXME: This is another terrible hack.
113 style_get_number(si, PROP_TEXT_MAJOR_Z_INDEX, &mzi);
116 style_get_number(si, PROP_MAJOR_Z_INDEX, &mzi);
117 double mzi2 = CLAMP(mzi, -100, 100);
119 osm_obj_warn(o, "major-z-index clipped from %.6g to %.6g", mzi, mzi2);
121 return (z_index_t)(10000 + (z_index_t)(zi2 * 100) + 10000*( 10000 + (z_index_t)(mzi2 * 100) ));
124 void sym_from_style(struct osm_object *o, struct style_results *sr, struct svg *svg)
126 for (uns i=0; i < sr->num_active_layers; i++)
128 for (uns j = SYMBOLIZER_INVALID + 1; j < SYMBOLIZER_MAX; j++)
129 if (symbolizers[j]->gen)
130 (symbolizers[j]->gen)(o, sr->layers[sr->active_layers[i]], svg);
134 static void sym_draw(struct symbol *sym, z_index_t zindex, struct svg *svg)
136 ASSERT(sym->type && sym->type < SYMBOLIZER_MAX);
137 if (debug_dump_symbols)
138 printf("Drawing symbol <%s> at z-index %u for %s\n", symbolizers[sym->type]->name, zindex, STK_OSM_NAME(sym->o));
139 if (symbolizers[sym->type]->draw)
140 symbolizers[sym->type]->draw(sym, svg);
143 void sym_draw_all(struct svg *svg)
145 msg(L_INFO, "Sorting %u symbols by depth", (uns) GARY_SIZE(sym_planned));
146 sym_sort(sym_planned, GARY_SIZE(sym_planned));
148 msg(L_INFO, "Dumping icon library");
149 svg_icon_dump_library(svg);
151 msg(L_INFO, "Drawing symbols");
152 for (uns i = 0; i < GARY_SIZE(sym_planned); i++)
153 sym_draw(sym_planned[i].sym, sym_planned[i].zindex, svg);
156 void sym_for_all_planned(void (*callback)(struct symbol *s))
158 for (uns i = 0; i < GARY_SIZE(sym_planned); i++)
159 callback(sym_planned[i].sym);
162 bool sym_same_attrs_p(struct symbol *x, struct symbol *y)
164 if (x->type != y->type)
167 if (!symbolizers[x->type]->same_p)
170 return (*symbolizers[x->type]->same_p)(x, y);
173 void sym_disable(struct symbol *sym)
175 sym->type = SYMBOLIZER_DISABLED;