Mercurial > MadButterfly
annotate src/mb_types.h @ 82:4bb6451ef036
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author | Thinker K.F. Li <thinker@branda.to> |
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date | Thu, 21 Aug 2008 14:13:50 +0800 |
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1 #ifndef __MB_TYPES_H_ |
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2 #define __MB_TYPES_H_ |
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3 |
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4 #include <cairo.h> |
12 | 5 #include "tools.h" |
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6 #include "observer.h" |
12 | 7 |
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8 typedef float co_aix; |
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9 typedef struct _shape shape_t; |
12 | 10 typedef struct _geo geo_t; |
13 | 11 typedef struct _area area_t; |
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12 typedef struct _shnode shnode_t; |
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13 typedef struct _paint paint_t; |
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14 |
58 | 15 /*! \brief Base of paint types. |
16 * | |
17 * Paints should be freed by users by calling paint_t::free() of | |
18 * the paint. | |
19 * | |
20 * \todo move member functions to a seperate structure and setup a | |
21 * singleton fro each paint type. | |
22 */ | |
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23 struct _paint { |
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24 void (*prepare)(paint_t *paint, cairo_t *cr); |
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25 void (*free)(paint_t *paint); |
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26 STAILQ(shnode_t) members; |
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27 }; |
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28 |
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29 struct _shnode { |
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30 shape_t *shape; |
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31 shnode_t *next; |
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32 }; |
13 | 33 |
34 struct _area { | |
35 co_aix x, y; | |
36 co_aix w, h; | |
37 }; | |
38 | |
39 /*! \brief Geometry data of a shape or a group of shape. | |
40 */ | |
41 struct _geo { | |
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42 #ifdef GEO_ORDER |
13 | 43 unsigned int order; |
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44 #endif |
13 | 45 unsigned int flags; |
46 shape_t *shape; | |
47 geo_t *next; /*!< \brief Link all geo objects. */ | |
48 | |
49 area_t *cur_area, *last_area; | |
50 area_t areas[2]; | |
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51 |
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52 subject_t *mouse_event; |
13 | 53 }; |
54 #define GEF_DIRTY 0x1 | |
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55 #define GEF_HIDDEN 0x2 |
13 | 56 |
57 extern int is_overlay(area_t *r1, area_t *r2); | |
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58 extern void area_init(area_t *area, int n_pos, co_aix pos[][2]); |
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59 extern void geo_init(geo_t *g); |
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60 extern void geo_from_positions(geo_t *g, int n_pos, co_aix pos[][2]); |
13 | 61 extern void geo_mark_overlay(geo_t *g, int n_others, geo_t **others, |
62 int *n_overlays, geo_t **overlays); | |
63 #define geo_get_shape(g) ((g)->shape) | |
64 #define geo_set_shape(g, sh) do {(g)->shape = sh;} while(0) | |
28 | 65 #define _geo_is_in(a, s, w) ((a) >= (s) && (a) < ((s) + (w))) |
66 #define geo_pos_is_in(g, _x, _y) \ | |
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67 (_geo_is_in(_x, (g)->cur_area->x, (g)->cur_area->w) && \ |
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68 _geo_is_in(_y, (g)->cur_area->y, (g)->cur_area->h)) |
13 | 69 |
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70 |
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71 /*! \brief A coordination system. |
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72 * |
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73 * It have a transform function defined by matrix to transform |
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74 * coordination from source space to target space. |
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75 * Source space is where the contained is drawed, and target space |
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76 * is where the coordination of parent container of the element |
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77 * represented by this coord object. |
12 | 78 * |
79 * \dot | |
80 * digraph G { | |
81 * graph [rankdir=LR]; | |
82 * root -> child00 -> child10 -> child20 [label="children" color="blue"]; | |
83 * child00 -> child01 -> child02 [label="sibling"]; | |
84 * child10 -> child11 [label="sibling"]; | |
85 * } | |
86 * \enddot | |
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87 */ |
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88 typedef struct _coord { |
13 | 89 unsigned int order; |
90 unsigned int flags; | |
91 area_t *cur_area, *last_area; | |
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92 area_t areas[2]; |
13 | 93 |
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94 co_aix matrix[6]; |
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95 co_aix aggr_matrix[6]; |
13 | 96 |
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97 struct _coord *parent; |
12 | 98 STAILQ(struct _coord) children; |
99 struct _coord *sibling; | |
13 | 100 |
101 STAILQ(shape_t) members; /*!< All shape_t objects in this coord. */ | |
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102 subject_t *mouse_event; |
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103 } coord_t; |
13 | 104 #define COF_DIRTY 0x1 |
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105 #define COF_HIDDEN 0x2 |
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106 |
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107 extern void coord_init(coord_t *co, coord_t *parent); |
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108 extern void coord_trans_pos(coord_t *co, co_aix *x, co_aix *y); |
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109 extern co_aix coord_trans_size(coord_t *co, co_aix size); |
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110 extern void compute_aggr_of_coord(coord_t *coord); |
10 | 111 extern void update_aggr_matrix(coord_t *start); |
13 | 112 extern coord_t *preorder_coord_subtree(coord_t *root, coord_t *last); |
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113 #define coord_hide(co) do { co->flags |= COF_HIDDEN; } while(0) |
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114 #define coord_show(co) do { co->flags &= ~COF_HIDDEN; } while(0) |
12 | 115 |
116 | |
117 /*! \brief A grahpic shape. | |
118 * | |
119 * \dot | |
120 * digraph G { | |
121 * "shape" -> "coord"; | |
122 * "shape" -> "geo"; | |
123 * "geo" -> "shape"; | |
124 * "coord" -> "shape" [label="members"] | |
125 * "shape" -> "shape" [label="sibling"]; | |
126 * } | |
127 * \enddot | |
128 */ | |
129 struct _shape { | |
130 int sh_type; | |
131 geo_t *geo; | |
132 coord_t *coord; | |
133 shape_t *coord_mem_next; | |
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134 paint_t *fill, *stroke; |
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135 co_aix stroke_width; |
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136 int stroke_linecap:2; |
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137 int stroke_linejoin:2; |
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138 void (*free)(shape_t *shape); |
12 | 139 }; |
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140 enum { SHT_UNKNOW, SHT_PATH, SHT_TEXT, SHT_RECT }; |
12 | 141 |
142 #define sh_attach_geo(sh, g) \ | |
143 do { \ | |
144 (sh)->geo = g; \ | |
145 (g)->shape = (shape_t *)(sh); \ | |
146 } while(0) | |
147 #define sh_detach_geo(sh) \ | |
148 do { \ | |
149 (sh)->geo->shape = NULL; \ | |
150 (sh)->geo = NULL; \ | |
151 } while(0) | |
77 | 152 #define sh_get_geo(sh) ((sh)->geo) |
153 #define sh_get_mouse_event_subject(sh) ((sh)->geo->mouse_event) | |
81 | 154 #define sh_hide(sh) do { (sh)->geo->flags |= GEF_HIDDEN; } while(0) |
155 #define sh_show(sh) do { (sh)->geo->flags &= ~GEF_HIDDEN; } while(0) | |
12 | 156 extern void sh_attach_coord(shape_t *sh, coord_t *coord); |
157 extern void sh_detach_coord(shape_t *sh); | |
158 | |
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159 #endif /* __MB_TYPES_H_ */ |