Mercurial > MadButterfly
annotate src/mb_types.h @ 26:d50f33040de6
Set line width for path.
- consider width of line when compute bounding box area.
| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Sun, 03 Aug 2008 13:04:55 +0800 |
| parents | 0f3baa488a62 |
| children | 604bc90d509d |
| rev | line source |
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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" |
| 6 | |
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7 typedef float co_aix; |
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8 typedef struct _shape shape_t; |
| 12 | 9 typedef struct _geo geo_t; |
| 13 | 10 typedef struct _area area_t; |
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11 typedef struct _shnode shnode_t; |
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12 typedef struct _paint paint_t; |
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13 |
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14 struct _paint { |
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15 void (*prepare)(paint_t *paint, cairo_t *cr); |
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16 void (*free)(paint_t *paint); |
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17 STAILQ(shnode_t) members; |
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18 }; |
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19 |
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20 struct _shnode { |
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21 shape_t *shape; |
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22 shnode_t *next; |
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23 }; |
| 13 | 24 |
| 25 struct _area { | |
| 26 co_aix x, y; | |
| 27 co_aix w, h; | |
| 28 }; | |
| 29 | |
| 30 /*! \brief Geometry data of a shape or a group of shape. | |
| 31 */ | |
| 32 struct _geo { | |
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33 #ifdef GEO_ORDER |
| 13 | 34 unsigned int order; |
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35 #endif |
| 13 | 36 unsigned int flags; |
| 37 shape_t *shape; | |
| 38 geo_t *next; /*!< \brief Link all geo objects. */ | |
| 39 | |
| 40 area_t *cur_area, *last_area; | |
| 41 area_t areas[2]; | |
| 42 }; | |
| 43 #define GEF_DIRTY 0x1 | |
| 44 | |
| 45 extern int is_overlay(area_t *r1, area_t *r2); | |
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46 extern void area_init(area_t *area, int n_pos, co_aix pos[][2]); |
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47 extern void geo_init(geo_t *g); |
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48 extern void geo_from_positions(geo_t *g, int n_pos, co_aix pos[][2]); |
| 13 | 49 extern void geo_mark_overlay(geo_t *g, int n_others, geo_t **others, |
| 50 int *n_overlays, geo_t **overlays); | |
| 51 #define geo_get_shape(g) ((g)->shape) | |
| 52 #define geo_set_shape(g, sh) do {(g)->shape = sh;} while(0) | |
| 53 | |
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54 |
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55 /*! \brief A coordination system. |
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56 * |
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57 * It have a transform function defined by matrix to transform |
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58 * coordination from source space to target space. |
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59 * Source space is where the contained is drawed, and target space |
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60 * is where the coordination of parent container of the element |
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61 * represented by this coord object. |
| 12 | 62 * |
| 63 * \dot | |
| 64 * digraph G { | |
| 65 * graph [rankdir=LR]; | |
| 66 * root -> child00 -> child10 -> child20 [label="children" color="blue"]; | |
| 67 * child00 -> child01 -> child02 [label="sibling"]; | |
| 68 * child10 -> child11 [label="sibling"]; | |
| 69 * } | |
| 70 * \enddot | |
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71 */ |
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72 typedef struct _coord { |
| 13 | 73 unsigned int order; |
| 74 unsigned int flags; | |
| 75 area_t *cur_area, *last_area; | |
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76 area_t areas[2]; |
| 13 | 77 |
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78 co_aix matrix[6]; |
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79 co_aix aggr_matrix[6]; |
| 13 | 80 |
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81 struct _coord *parent; |
| 12 | 82 STAILQ(struct _coord) children; |
| 83 struct _coord *sibling; | |
| 13 | 84 |
| 85 STAILQ(shape_t) members; /*!< All shape_t objects in this coord. */ | |
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86 } coord_t; |
| 13 | 87 #define COF_DIRTY 0x1 |
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88 |
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89 extern void coord_init(coord_t *co, coord_t *parent); |
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90 extern void coord_trans_pos(coord_t *co, co_aix *x, co_aix *y); |
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91 extern void compute_aggr_of_coord(coord_t *coord); |
| 10 | 92 extern void update_aggr_matrix(coord_t *start); |
| 13 | 93 extern coord_t *preorder_coord_subtree(coord_t *root, coord_t *last); |
| 12 | 94 |
| 95 | |
| 96 /*! \brief A grahpic shape. | |
| 97 * | |
| 98 * \dot | |
| 99 * digraph G { | |
| 100 * "shape" -> "coord"; | |
| 101 * "shape" -> "geo"; | |
| 102 * "geo" -> "shape"; | |
| 103 * "coord" -> "shape" [label="members"] | |
| 104 * "shape" -> "shape" [label="sibling"]; | |
| 105 * } | |
| 106 * \enddot | |
| 107 */ | |
| 108 struct _shape { | |
| 109 int sh_type; | |
| 110 geo_t *geo; | |
| 111 coord_t *coord; | |
| 112 shape_t *coord_mem_next; | |
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113 paint_t *fill, *stroke; |
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114 co_aix stroke_width; |
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115 int stroke_linecap; |
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116 int stroke_linejoin; |
| 12 | 117 }; |
| 118 enum { SHT_UNKNOW, SHT_PATH, SHT_TEXT }; | |
| 119 | |
| 120 #define sh_attach_geo(sh, g) \ | |
| 121 do { \ | |
| 122 (sh)->geo = g; \ | |
| 123 (g)->shape = (shape_t *)(sh); \ | |
| 124 } while(0) | |
| 125 #define sh_detach_geo(sh) \ | |
| 126 do { \ | |
| 127 (sh)->geo->shape = NULL; \ | |
| 128 (sh)->geo = NULL; \ | |
| 129 } while(0) | |
| 130 extern void sh_attach_coord(shape_t *sh, coord_t *coord); | |
| 131 extern void sh_detach_coord(shape_t *sh); | |
| 132 | |
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133 #endif /* __MB_TYPES_H_ */ |