annotate src/mb_types.h @ 81:13fdf205047b

Hide shapes and groups
author Thinker K.F. Li <thinker@branda.to>
date Thu, 21 Aug 2008 13:52:23 +0800
parents a6763f080da5
children ea758bb3bbe2
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1 #ifndef __MB_TYPES_H_
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2 #define __MB_TYPES_H_
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4 #include <cairo.h>
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5 #include "tools.h"
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6 #include "observer.h"
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7
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8 typedef float co_aix;
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9 typedef struct _shape shape_t;
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10 typedef struct _geo geo_t;
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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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15 /*! \brief Base of paint types.
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16 *
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17 * Paints should be freed by users by calling paint_t::free() of
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18 * the paint.
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19 *
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20 * \todo move member functions to a seperate structure and setup a
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21 * singleton fro each paint type.
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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 };
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34 struct _area {
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35 co_aix x, y;
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36 co_aix w, h;
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37 };
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39 /*! \brief Geometry data of a shape or a group of shape.
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40 */
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41 struct _geo {
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42 #ifdef GEO_ORDER
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43 unsigned int order;
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44 #endif
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45 unsigned int flags;
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46 shape_t *shape;
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47 geo_t *next; /*!< \brief Link all geo objects. */
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48
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49 area_t *cur_area, *last_area;
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50 area_t areas[2];
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51
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52 subject_t *mouse_event;
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53 };
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54 #define GEF_DIRTY 0x1
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55 #define GEF_HIDDEN 0x2
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56
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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]);
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61 extern void geo_mark_overlay(geo_t *g, int n_others, geo_t **others,
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62 int *n_overlays, geo_t **overlays);
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63 #define geo_get_shape(g) ((g)->shape)
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64 #define geo_set_shape(g, sh) do {(g)->shape = sh;} while(0)
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65 #define _geo_is_in(a, s, w) ((a) >= (s) && (a) < ((s) + (w)))
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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))
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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.
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78 *
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79 * \dot
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80 * digraph G {
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81 * graph [rankdir=LR];
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82 * root -> child00 -> child10 -> child20 [label="children" color="blue"];
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83 * child00 -> child01 -> child02 [label="sibling"];
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84 * child10 -> child11 [label="sibling"];
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85 * }
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86 * \enddot
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87 */
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88 typedef struct _coord {
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89 unsigned int order;
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90 unsigned int flags;
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91 area_t *cur_area, *last_area;
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92 area_t areas[2];
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93
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94 co_aix matrix[6];
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95 co_aix aggr_matrix[6];
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96
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97 struct _coord *parent;
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98 STAILQ(struct _coord) children;
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99 struct _coord *sibling;
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100
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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;
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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);
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111 extern void update_aggr_matrix(coord_t *start);
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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)
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115
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116
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117 /*! \brief A grahpic shape.
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118 *
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119 * \dot
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120 * digraph G {
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121 * "shape" -> "coord";
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122 * "shape" -> "geo";
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123 * "geo" -> "shape";
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124 * "coord" -> "shape" [label="members"]
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125 * "shape" -> "shape" [label="sibling"];
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126 * }
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127 * \enddot
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128 */
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129 struct _shape {
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130 int sh_type;
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131 geo_t *geo;
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132 coord_t *coord;
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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);
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139 };
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140 enum { SHT_UNKNOW, SHT_PATH, SHT_TEXT, SHT_RECT };
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141
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142 #define sh_attach_geo(sh, g) \
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143 do { \
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144 (sh)->geo = g; \
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145 (g)->shape = (shape_t *)(sh); \
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146 } while(0)
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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147 #define sh_detach_geo(sh) \
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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148 do { \
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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149 (sh)->geo->shape = NULL; \
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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150 (sh)->geo = NULL; \
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parents: 11
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151 } while(0)
77
Thinker K.F. Li <thinker@branda.to>
parents: 73
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152 #define sh_get_geo(sh) ((sh)->geo)
Thinker K.F. Li <thinker@branda.to>
parents: 73
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153 #define sh_get_mouse_event_subject(sh) ((sh)->geo->mouse_event)
81
13fdf205047b Hide shapes and groups
Thinker K.F. Li <thinker@branda.to>
parents: 77
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154 #define sh_hide(sh) do { (sh)->geo->flags |= GEF_HIDDEN; } while(0)
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Thinker K.F. Li <thinker@branda.to>
parents: 77
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155 #define sh_show(sh) do { (sh)->geo->flags &= ~GEF_HIDDEN; } while(0)
12
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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156 extern void sh_attach_coord(shape_t *sh, coord_t *coord);
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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157 extern void sh_detach_coord(shape_t *sh);
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Thinker K.F. Li <thinker@branda.to>
parents: 11
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158
5
9c331ec9e210 SVG path is partially supported
Thinker K.F. Li <thinker@branda.to>
parents:
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159 #endif /* __MB_TYPES_H_ */