Mercurial > MadButterfly
annotate src/redraw_man.c @ 135:81c03fdd94d0
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| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Thu, 18 Sep 2008 17:12:41 +0800 |
| parents | 4c2d83721bcc |
| children | 9f4fc9ecfd1f |
| rev | line source |
|---|---|
| 12 | 1 #include <stdio.h> |
| 2 #include <stdlib.h> | |
| 3 #include <string.h> | |
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X_main uses rdman_redraw_all()
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4 #include <cairo.h> |
| 12 | 5 #include "mb_types.h" |
| 6 #include "shapes.h" | |
| 7 #include "tools.h" | |
| 8 #include "redraw_man.h" | |
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Observer for mouse events
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9 #include "observer.h" |
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10 |
| 12 | 11 |
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Set line width for path.
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12 /* NOTE: bounding box should also consider width of stroke. |
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13 */ |
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14 |
| 12 | 15 #define OK 0 |
| 16 #define ERR -1 | |
| 17 | |
| 13 | 18 #define SWAP(a, b, t) do { t c; c = a; a = b; b = c; } while(0) |
| 19 | |
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20 #ifdef UNITTEST |
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21 typedef struct _sh_dummy sh_dummy_t; |
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22 |
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23 extern void sh_dummy_transform(shape_t *shape); |
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rename XXX_draw() to XXX_fill()
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24 extern void sh_dummy_fill(shape_t *, cairo_t *); |
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25 #endif /* UNITTEST */ |
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26 |
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27 static subject_t *ob_subject_alloc(ob_factory_t *factory); |
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28 static void ob_subject_free(ob_factory_t *factory, subject_t *subject); |
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29 static observer_t *ob_observer_alloc(ob_factory_t *factory); |
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30 static void ob_observer_free(ob_factory_t *factory, observer_t *observer); |
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31 static subject_t *ob_get_parent_subject(ob_factory_t *factory, |
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32 subject_t *cur_subject); |
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33 |
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34 |
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35 /*! \brief Sort a list of element by a unsigned integer. |
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36 * |
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37 * The result is in ascend order. The unsigned integers is |
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38 * at offset specified by 'off' from start address of elemnts. |
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39 */ |
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40 static void _insert_sort(void **elms, int num, int off) { |
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41 int i, j; |
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42 unsigned int val; |
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43 void *elm_i; |
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44 |
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45 for(i = 1; i < num; i++) { |
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46 elm_i = elms[i]; |
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47 val = *(unsigned int *)(elm_i + off); |
| 119 | 48 for(j = i; j > 0; j--) { |
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49 if(*(unsigned int *)(elms[j - 1] + off) <= val) |
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50 break; |
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51 elms[j] = elms[j - 1]; |
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52 } |
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53 elms[j] = elm_i; |
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54 } |
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55 } |
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56 |
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57 static int extend_memblk(void **buf, int o_size, int n_size) { |
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58 void *new_buf; |
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59 |
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60 new_buf = realloc(*buf, n_size); |
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61 if(new_buf == NULL) |
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62 return ERR; |
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63 |
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Accept mouse/pointer event and hint the shape that the pointer is over.
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64 *buf = new_buf; |
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65 |
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66 return OK; |
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67 } |
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68 |
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69 static int add_dirty_geo(redraw_man_t *rdman, geo_t *geo) { |
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70 int max_dirty_geos; |
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71 int r; |
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72 |
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73 if(rdman->n_dirty_geos >= rdman->max_dirty_geos) { |
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74 max_dirty_geos = rdman->n_geos; |
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75 r = extend_memblk((void **)&rdman->dirty_geos, |
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76 sizeof(geo_t *) * rdman->n_dirty_geos, |
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77 sizeof(geo_t *) * max_dirty_geos); |
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78 if(r != OK) |
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79 return ERR; |
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80 rdman->max_dirty_geos = max_dirty_geos; |
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81 } |
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82 |
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83 rdman->dirty_geos[rdman->n_dirty_geos++] = geo; |
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84 return OK; |
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85 } |
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86 |
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87 static int add_dirty_area(redraw_man_t *rdman, area_t *area) { |
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88 int max_dirty_areas; |
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89 int r; |
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90 |
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91 if(rdman->n_dirty_areas >= rdman->max_dirty_areas) { |
| 37 | 92 /* every geo object and coord object can contribute 2 areas. |
| 93 * rdman_draw_area() may also contribute 1 area. | |
| 94 */ | |
| 95 max_dirty_areas = (rdman->n_geos + rdman->n_coords) * 2 + 1; | |
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96 r = extend_memblk((void **)&rdman->dirty_areas, |
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97 sizeof(area_t *) * rdman->n_dirty_areas, |
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98 sizeof(area_t *) * max_dirty_areas); |
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99 if(r != OK) |
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100 return ERR; |
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101 rdman->max_dirty_areas = max_dirty_areas; |
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102 } |
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103 |
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104 rdman->dirty_areas[rdman->n_dirty_areas++] = area; |
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105 return OK; |
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106 } |
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107 |
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108 static void area_to_positions(area_t *area, co_aix (*poses)[2]) { |
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109 poses[0][0] = area->x; |
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110 poses[0][1] = area->y; |
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111 poses[1][0] = area->x + area->w; |
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112 poses[1][1] = area->y + area->h;; |
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113 } |
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114 |
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115 int redraw_man_init(redraw_man_t *rdman, cairo_t *cr, cairo_t *backend) { |
| 12 | 116 extern void redraw_man_destroy(redraw_man_t *rdman); |
| 117 | |
| 118 memset(rdman, 0, sizeof(redraw_man_t)); | |
| 119 | |
| 120 rdman->geo_pool = elmpool_new(sizeof(geo_t), 128); | |
| 121 if(rdman->geo_pool == NULL) | |
| 122 return ERR; | |
| 123 | |
| 124 rdman->coord_pool = elmpool_new(sizeof(coord_t), 16); | |
| 125 if(rdman->coord_pool == NULL) { | |
| 126 elmpool_free(rdman->geo_pool); | |
| 127 return ERR; | |
| 128 } | |
| 129 | |
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130 rdman->shnode_pool = elmpool_new(sizeof(shnode_t), 16); |
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131 if(rdman->shnode_pool == NULL) { |
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132 elmpool_free(rdman->geo_pool); |
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133 elmpool_free(rdman->coord_pool); |
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134 return ERR; |
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135 } |
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136 |
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137 rdman->observer_pool = elmpool_new(sizeof(observer_t), 32); |
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138 if(rdman->observer_pool == NULL) { |
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139 elmpool_free(rdman->geo_pool); |
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140 elmpool_free(rdman->coord_pool); |
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141 elmpool_free(rdman->shnode_pool); |
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142 return ERR; |
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143 } |
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144 |
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145 rdman->subject_pool = elmpool_new(sizeof(subject_t), 32); |
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146 if(rdman->subject_pool == NULL) { |
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147 elmpool_free(rdman->geo_pool); |
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148 elmpool_free(rdman->coord_pool); |
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149 elmpool_free(rdman->shnode_pool); |
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150 elmpool_free(rdman->observer_pool); |
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151 return ERR; |
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152 } |
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153 |
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154 rdman->ob_factory.subject_alloc = ob_subject_alloc; |
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155 rdman->ob_factory.subject_free = ob_subject_free; |
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156 rdman->ob_factory.observer_alloc = ob_observer_alloc; |
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157 rdman->ob_factory.observer_free = ob_observer_free; |
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158 rdman->ob_factory.get_parent_subject = ob_get_parent_subject; |
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159 |
| 12 | 160 rdman->root_coord = elmpool_elm_alloc(rdman->coord_pool); |
| 161 if(rdman->root_coord == NULL) | |
| 162 redraw_man_destroy(rdman); | |
| 13 | 163 rdman->n_coords = 1; |
| 12 | 164 coord_init(rdman->root_coord, NULL); |
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165 rdman->root_coord->mouse_event = subject_new(&rdman->ob_factory, |
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166 rdman->root_coord, |
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167 OBJT_COORD); |
| 12 | 168 |
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169 rdman->cr = cr; |
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170 rdman->backend = backend; |
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171 |
| 12 | 172 return OK; |
| 173 } | |
| 174 | |
| 175 void redraw_man_destroy(redraw_man_t *rdman) { | |
| 176 elmpool_free(rdman->coord_pool); | |
| 177 elmpool_free(rdman->geo_pool); | |
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178 elmpool_free(rdman->shnode_pool); |
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179 elmpool_free(rdman->observer_pool); |
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180 elmpool_free(rdman->subject_pool); |
| 13 | 181 if(rdman->dirty_coords) |
| 182 free(rdman->dirty_coords); | |
| 14 | 183 if(rdman->dirty_geos) |
| 184 free(rdman->dirty_geos); | |
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185 if(rdman->gen_geos) |
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186 free(rdman->gen_geos); |
| 12 | 187 } |
| 188 | |
| 189 | |
| 190 #define ASSERT(x) | |
| 191 /* | |
| 192 * Change transformation matrix | |
| 193 * - update aggregated transformation matrix | |
| 194 * - of coord_t object been changed. | |
| 195 * - of children coord_t objects. | |
| 196 * - redraw members of coord_t objects. | |
| 197 * - redraw shape objects they are overlaid with members. | |
| 198 * - find out overlaid shape objects. | |
| 199 * - geo_t of a coord_t object | |
| 200 * - can make finding more efficiency. | |
| 201 * - fill overlay geo_t objects of members. | |
| 202 * | |
| 203 * Change a shape object | |
| 204 * - redraw changed object. | |
| 205 * - redraw shape objects they are overlaid with changed object. | |
| 206 * - find out overlaid shape objects. | |
| 207 * | |
| 208 * That coord and geo of shape objects are setted by user code | |
| 209 * give user code a chance to collect coord and geo objects together | |
| 210 * and gain interest of higher cache hit rate. | |
| 211 */ | |
| 212 | |
| 213 /*! \brief Find out all affected shape objects. | |
| 214 * | |
| 215 * Find out all shape objects that are overalid with geo_t of | |
| 216 * a geometry changed object. | |
| 217 * | |
| 218 * Linear scan geo_t objects of all shape objects in all_shapes | |
| 219 * list of a redraw_man_t object. | |
| 220 */ | |
| 221 int rdman_find_overlaid_shapes(redraw_man_t *rdman, geo_t *geo, | |
| 222 geo_t ***overlays) { | |
| 223 int n_geos; | |
| 224 geo_t **geos; | |
| 225 geo_t *geo_cur; | |
| 226 int n_overlays; | |
| 227 geo_t **_overlays; | |
| 228 int i; | |
| 229 | |
| 230 n_geos = rdman->n_geos; | |
| 231 | |
| 232 geos = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 233 if(geos == NULL) | |
| 234 return -1; | |
| 235 | |
| 236 _overlays = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 237 if(geos == NULL) { | |
| 238 free(geos); | |
| 239 return -1; | |
| 240 } | |
| 241 | |
| 242 geo_cur = STAILQ_HEAD(rdman->all_geos); | |
| 243 for(i = 0; i < n_geos; i++) { | |
| 244 geos[i] = geo_cur; | |
| 245 geo_cur = STAILQ_NEXT(geo_t, next, geo_cur); | |
| 246 } | |
| 247 geo_mark_overlay(geo, n_geos, geos, &n_overlays, _overlays); | |
| 248 | |
| 249 free(geos); | |
| 250 *overlays = _overlays; | |
| 251 | |
| 252 return n_overlays; | |
| 253 } | |
| 254 | |
| 255 int rdman_add_shape(redraw_man_t *rdman, shape_t *shape, coord_t *coord) { | |
| 256 geo_t *geo; | |
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257 #ifdef GEO_ORDER |
| 13 | 258 geo_t *visit; |
| 259 unsigned int next_order; | |
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260 #endif |
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261 int r; |
| 12 | 262 |
| 263 geo = elmpool_elm_alloc(rdman->geo_pool); | |
| 264 if(geo == NULL) | |
| 265 return ERR; | |
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266 |
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267 geo_init(geo); |
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268 geo->mouse_event = subject_new(&rdman->ob_factory, geo, OBJT_GEO); |
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269 |
| 12 | 270 sh_attach_geo(shape, geo); |
| 271 STAILQ_INS_TAIL(rdman->all_geos, geo_t, next, geo); | |
| 272 rdman->n_geos++; | |
| 13 | 273 |
| 58 | 274 /*! \todo remove order number. */ |
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275 #ifdef GEO_ORDER |
| 13 | 276 geo->order = ++rdman->next_geo_order; |
| 277 if(geo->order == 0) { | |
| 278 next_order = 0; | |
| 279 for(visit = STAILQ_HEAD(rdman->all_geos); | |
| 280 visit != NULL; | |
| 281 visit = STAILQ_NEXT(geo_t, next, visit)) | |
| 282 visit->order = ++next_order; | |
| 283 rdman->next_geo_order = next_order; | |
| 284 } | |
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285 #endif |
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286 |
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287 /* New one should be dirty to recompute it when drawing. */ |
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288 geo->flags |= GEF_DIRTY; |
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289 r = add_dirty_geo(rdman, geo); |
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290 if(r != OK) |
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291 return ERR; |
| 13 | 292 |
| 12 | 293 sh_attach_coord(shape, coord); |
| 294 | |
| 295 return OK; | |
| 296 } | |
| 297 | |
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298 /*! \brief Remove a shape object from redraw manager. |
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299 * |
| 58 | 300 * \todo redraw shape objects that overlaid with removed one. |
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301 */ |
| 12 | 302 int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape) { |
| 303 STAILQ_REMOVE(rdman->all_geos, geo_t, next, shape->geo); | |
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304 subject_free(&rdman->ob_factory, shape->geo->mouse_event); |
| 104 | 305 sh_detach_geo(shape); |
| 12 | 306 elmpool_elm_free(rdman->geo_pool, shape->geo); |
| 307 rdman->n_geos--; | |
| 308 sh_detach_coord(shape); | |
| 309 return OK; | |
| 310 } | |
| 311 | |
| 312 coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent) { | |
| 13 | 313 coord_t *coord, *root_coord; |
| 314 coord_t *visit; | |
| 12 | 315 |
| 316 coord = elmpool_elm_alloc(rdman->coord_pool); | |
| 317 if(coord == NULL) | |
| 318 return NULL; | |
| 319 | |
| 320 coord_init(coord, parent); | |
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321 coord->mouse_event = subject_new(&rdman->ob_factory, |
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322 coord, |
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323 OBJT_COORD); |
| 13 | 324 rdman->n_coords++; |
| 325 | |
| 326 coord->order = ++rdman->next_coord_order; | |
| 327 if(coord->order == 0) { | |
| 328 rdman->next_coord_order = 0; | |
| 329 root_coord = visit = rdman->root_coord; | |
| 330 /* skip root coord. */ | |
| 331 visit = preorder_coord_subtree(root_coord, visit); | |
| 332 while(visit) { | |
| 333 visit->order = ++rdman->next_coord_order; | |
| 334 visit = preorder_coord_subtree(root_coord, visit); | |
| 335 } | |
| 336 } | |
| 12 | 337 |
| 338 return coord; | |
| 339 } | |
| 340 | |
| 341 /*! \brief Free a coord of a redraw_man_t object. | |
| 342 * | |
| 343 * \param coord is a coord_t without children and members. | |
| 344 * \return 0 for successful, -1 for error. | |
| 345 */ | |
| 346 int rdman_coord_free(redraw_man_t *rdman, coord_t *coord) { | |
| 347 coord_t *parent; | |
| 348 | |
| 349 parent = coord->parent; | |
| 350 if(parent == NULL) | |
| 351 return ERR; | |
| 352 | |
| 353 if(STAILQ_HEAD(coord->members) != NULL) | |
| 354 return ERR; | |
| 355 | |
| 356 if(STAILQ_HEAD(coord->children) != NULL) | |
| 357 return ERR; | |
| 358 | |
| 359 STAILQ_REMOVE(parent->children, coord_t, sibling, coord); | |
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360 subject_free(&rdman->ob_factory, coord->mouse_event); |
| 12 | 361 elmpool_elm_free(rdman->coord_pool, coord); |
| 13 | 362 rdman->n_coords--; |
| 363 | |
| 364 return OK; | |
| 365 } | |
| 366 | |
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367 static void make_sure_dirty_coords(redraw_man_t *rdman) { |
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368 int max_dirty_coords; |
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369 int r; |
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370 |
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371 if(rdman->n_dirty_coords >= rdman->max_dirty_coords) { |
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372 /* Max of dirty_coords is not big enough. */ |
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373 max_dirty_coords = rdman->max_dirty_coords + 16; |
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374 |
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375 r = extend_memblk((void **)&rdman->dirty_coords, |
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376 sizeof(coord_t *) * rdman->n_dirty_coords, |
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377 sizeof(coord_t *) * max_dirty_coords); |
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378 rdman->max_dirty_coords = max_dirty_coords; |
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379 } |
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380 } |
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381 |
| 13 | 382 /*! \brief Mark a coord is changed. |
| 383 * | |
| 384 * A changed coord_t object is marked as dirty and put | |
| 385 * into dirty_coords list. | |
| 386 */ | |
| 387 int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord) { | |
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388 coord_t *child; |
| 13 | 389 |
| 390 if(coord->flags & COF_DIRTY) | |
| 391 return OK; | |
| 392 | |
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393 /* Make the coord and child coords dirty. */ |
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394 for(child = coord; |
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395 child != NULL; |
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396 child = preorder_coord_subtree(coord, child)) { |
|
114
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397 if(child->flags & COF_DIRTY) |
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398 continue; |
|
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399 make_sure_dirty_coords(rdman); |
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400 |
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401 rdman->dirty_coords[rdman->n_dirty_coords++] = child; |
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402 child->flags |= COF_DIRTY; |
|
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403 } |
| 13 | 404 |
| 405 return OK; | |
| 406 } | |
| 407 | |
|
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408 static int _rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
| 13 | 409 geo_t *geo; |
| 410 int r; | |
| 411 | |
| 412 geo = shape->geo; | |
| 413 | |
| 414 if(geo->flags & GEF_DIRTY) | |
| 415 return OK; | |
| 416 | |
| 417 r = add_dirty_geo(rdman, geo); | |
| 418 if(r == ERR) | |
| 419 return ERR; | |
| 420 geo->flags |= GEF_DIRTY; | |
| 12 | 421 |
| 422 return OK; | |
| 423 } | |
| 424 | |
|
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425 /*! \brief Mark a shape is changed. |
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426 * |
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427 * The geo_t object of a changed shape is mark as dirty and |
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428 * put into dirty_geos list. |
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429 */ |
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430 int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
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431 return _rdman_shape_changed(rdman, shape); |
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432 } |
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433 |
| 29 | 434 int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint) { |
| 435 shnode_t *node; | |
| 436 int r; | |
| 437 | |
| 438 for(node = STAILQ_HEAD(paint->members); | |
| 439 node != NULL; | |
| 440 node = STAILQ_NEXT(shnode_t, next, node)) { | |
| 441 r = _rdman_shape_changed(rdman, node->shape); | |
| 442 if(r != OK) | |
| 443 return ERR; | |
| 444 } | |
| 445 return OK; | |
| 446 } | |
| 447 | |
| 28 | 448 /* Clean dirties */ |
| 449 | |
|
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450 static int is_coord_subtree_hidden(coord_t *coord) { |
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451 while(coord) { |
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452 if(coord->flags & COF_HIDDEN) |
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453 return 1; |
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454 coord = coord->parent; |
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455 } |
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456 return 0; |
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457 } |
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458 |
| 28 | 459 static void clean_shape(shape_t *shape) { |
| 460 switch(shape->sh_type) { | |
| 461 case SHT_PATH: | |
| 462 sh_path_transform(shape); | |
| 463 break; | |
| 464 case SHT_TEXT: | |
| 465 sh_text_transform(shape); | |
| 466 break; | |
|
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467 case SHT_RECT: |
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468 sh_rect_transform(shape); |
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469 break; |
| 28 | 470 #ifdef UNITTEST |
| 471 default: | |
| 472 sh_dummy_transform(shape); | |
| 473 break; | |
| 474 #endif /* UNITTEST */ | |
| 475 } | |
| 476 shape->geo->flags &= ~GEF_DIRTY; | |
|
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477 |
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478 if(is_coord_subtree_hidden(shape->coord)) |
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479 shape->geo->flags |= GEF_HIDDEN; |
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480 else |
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481 shape->geo->flags &= ~GEF_HIDDEN; |
| 28 | 482 } |
| 483 | |
| 484 static int clean_coord(coord_t *coord) { | |
| 485 shape_t *shape; | |
| 486 geo_t *geo; | |
| 487 co_aix (*poses)[2]; | |
| 488 int cnt, pos_cnt; | |
| 489 | |
| 490 compute_aggr_of_coord(coord); | |
| 491 | |
| 492 /* Clean member shapes. */ | |
| 493 cnt = 0; | |
| 494 for(shape = STAILQ_HEAD(coord->members); | |
| 495 shape != NULL; | |
| 496 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 497 geo = shape->geo; | |
| 498 SWAP(geo->cur_area, geo->last_area, area_t *); | |
| 499 clean_shape(shape); | |
| 500 cnt++; | |
| 501 } | |
| 502 | |
| 503 /* Compute area of the coord. */ | |
| 504 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * 2 * cnt); | |
| 505 if(poses == NULL) | |
| 506 return ERR; | |
| 507 | |
| 508 pos_cnt = 0; | |
| 509 for(shape = STAILQ_HEAD(coord->members); | |
| 510 shape != NULL; | |
| 511 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 512 geo = shape->geo; | |
| 513 | |
| 514 area_to_positions(geo->cur_area, poses + pos_cnt); | |
| 515 pos_cnt += 2; | |
| 516 } | |
| 517 | |
| 518 SWAP(coord->cur_area, coord->last_area, area_t *); | |
| 519 area_init(coord->cur_area, pos_cnt, poses); | |
| 520 free(poses); | |
| 521 | |
| 522 coord->flags &= ~COF_DIRTY; | |
| 523 | |
| 524 return OK; | |
| 525 } | |
| 526 | |
| 135 | 527 /*! \brief Clean coord_t objects. |
| 133 | 528 * |
| 135 | 529 * \todo Make objects can be addin or remove out of coord tree any time. |
| 133 | 530 */ |
| 28 | 531 static int clean_rdman_coords(redraw_man_t *rdman) { |
| 532 coord_t *coord; | |
| 533 coord_t **dirty_coords; | |
| 534 int n_dirty_coords; | |
| 535 int i, r; | |
| 536 | |
| 537 n_dirty_coords = rdman->n_dirty_coords; | |
| 538 if(n_dirty_coords > 0) { | |
| 539 dirty_coords = rdman->dirty_coords; | |
| 540 _insert_sort((void **)dirty_coords, n_dirty_coords, | |
| 541 OFFSET(coord_t, order)); | |
| 542 for(i = 0; i < n_dirty_coords; i++) { | |
| 543 coord = dirty_coords[i]; | |
| 544 if(!(coord->flags & COF_DIRTY)) | |
| 545 continue; | |
| 546 r = clean_coord(coord); | |
| 547 if(r != OK) | |
| 548 return ERR; | |
| 549 /* These two steps can be avoided for drawing all. */ | |
| 550 add_dirty_area(rdman, &coord->areas[0]); | |
| 551 add_dirty_area(rdman, &coord->areas[1]); | |
| 552 } | |
| 553 rdman->n_dirty_coords = 0; | |
| 554 } | |
| 555 return OK; | |
| 556 } | |
| 557 | |
| 558 static int clean_rdman_geos(redraw_man_t *rdman) { | |
| 559 int i; | |
| 560 int n_dirty_geos; | |
| 561 geo_t **dirty_geos; | |
| 562 geo_t *visit_geo; | |
| 563 | |
| 564 n_dirty_geos = rdman->n_dirty_geos; | |
| 565 if(n_dirty_geos > 0) { | |
| 566 dirty_geos = rdman->dirty_geos; | |
| 567 for(i = 0; i < n_dirty_geos; i++) { | |
| 568 visit_geo = dirty_geos[i]; | |
| 569 if(!(visit_geo->flags & GEF_DIRTY)) | |
| 570 continue; | |
| 571 | |
| 572 SWAP(visit_geo->cur_area, visit_geo->last_area, area_t *); | |
| 573 clean_shape(visit_geo->shape); | |
| 574 add_dirty_area(rdman, visit_geo->cur_area); | |
| 575 add_dirty_area(rdman, visit_geo->last_area); | |
| 576 } | |
| 577 rdman->n_dirty_geos = 0; | |
| 578 } | |
| 579 | |
| 580 return OK; | |
| 581 } | |
| 582 | |
| 29 | 583 static int clean_rdman_dirties(redraw_man_t *rdman) { |
| 584 int r; | |
| 585 | |
| 586 r = clean_rdman_coords(rdman); | |
| 587 if(r != OK) | |
| 588 return ERR; | |
| 589 | |
| 590 r = clean_rdman_geos(rdman); | |
| 591 if(r != OK) | |
| 592 return ERR; | |
| 593 | |
| 594 return OK; | |
| 595 } | |
| 596 | |
| 597 | |
|
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598 /* Drawing and Redrawing |
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599 * ============================================================ |
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600 */ |
|
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601 |
|
26
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602 #ifndef UNITTEST |
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603 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
|
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604 cairo_set_line_width(cr, shape->stroke_width); |
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605 } |
|
33
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606 |
|
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607 static void fill_path_preserve(redraw_man_t *rdman) { |
|
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608 cairo_fill_preserve(rdman->cr); |
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609 } |
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610 |
|
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611 static void fill_path(redraw_man_t *rdman) { |
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612 cairo_fill(rdman->cr); |
|
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613 } |
|
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614 |
|
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Fix bug of demo and remove *_fill() and *_stroke().
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615 static void stroke_path(redraw_man_t *rdman) { |
|
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616 cairo_stroke(rdman->cr); |
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617 } |
|
26
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618 #else |
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619 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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620 } |
|
33
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621 |
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622 static void fill_path_preserve(redraw_man_t *rdman) { |
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623 } |
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624 |
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625 static void fill_path(redraw_man_t *rdman) { |
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626 } |
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627 |
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628 static void stroke_path(redraw_man_t *rdman) { |
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629 } |
|
26
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630 #endif |
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631 |
| 22 | 632 static void draw_shape(redraw_man_t *rdman, shape_t *shape) { |
| 633 paint_t *fill, *stroke; | |
|
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634 |
|
33
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635 if(shape->fill || shape->stroke) { |
| 19 | 636 switch(shape->sh_type) { |
| 637 case SHT_PATH: | |
|
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638 sh_path_draw(shape, rdman->cr); |
| 19 | 639 break; |
| 27 | 640 case SHT_TEXT: |
|
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641 sh_text_draw(shape, rdman->cr); |
| 27 | 642 break; |
|
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643 case SHT_RECT: |
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644 sh_rect_draw(shape, rdman->cr); |
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645 break; |
|
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646 #ifdef UNITTEST |
| 19 | 647 default: |
|
20
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648 sh_dummy_fill(shape, rdman->cr); |
| 19 | 649 break; |
|
17
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650 #endif /* UNITTEST */ |
| 19 | 651 } |
|
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652 |
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653 fill = shape->fill; |
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654 if(shape->fill) { |
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655 fill->prepare(fill, rdman->cr); |
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656 if(shape->stroke) |
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657 fill_path_preserve(rdman); |
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658 else |
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659 fill_path(rdman); |
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660 } |
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661 |
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662 stroke = shape->stroke; |
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663 if(stroke) { |
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664 stroke->prepare(stroke, rdman->cr); |
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665 set_shape_stroke_param(shape, rdman->cr); |
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666 stroke_path(rdman); |
| 22 | 667 } |
| 668 } | |
| 13 | 669 } |
| 670 | |
|
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671 #ifndef UNITTEST |
|
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672 static void clean_canvas(cairo_t *cr) { |
| 58 | 673 /*! \todo clean to background color. */ |
|
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674 cairo_set_source_rgb(cr, 1, 1, 1); |
|
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675 cairo_paint(cr); |
|
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676 } |
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677 |
|
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678 static void make_clip(cairo_t *cr, int n_dirty_areas, |
|
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679 area_t **dirty_areas) { |
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680 int i; |
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681 area_t *area; |
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682 |
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683 for(i = 0; i < n_dirty_areas; i++) { |
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684 area = dirty_areas[i]; |
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685 cairo_rectangle(cr, area->x, area->y, area->w, area->h); |
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686 } |
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687 cairo_clip(cr); |
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688 } |
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689 |
|
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690 static void reset_clip(redraw_man_t *rdman) { |
|
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691 cairo_reset_clip(rdman->backend); |
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692 } |
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693 |
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694 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
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695 area_t **dirty_areas) { |
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696 if(n_dirty_areas) |
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697 make_clip(rdman->backend, n_dirty_areas, dirty_areas); |
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698 |
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699 cairo_paint(rdman->backend); |
|
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700 } |
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701 #else /* UNITTEST */ |
|
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702 static void clean_canvas(cairo_t *cr) { |
|
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703 } |
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704 |
|
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705 static void reset_clip(redraw_man_t *rdman) { |
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706 } |
|
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707 |
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708 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
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709 area_t **dirty_areas) { |
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710 } |
|
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711 #endif /* UNITTEST */ |
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712 |
| 22 | 713 static void draw_shapes_in_areas(redraw_man_t *rdman, |
|
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714 int n_areas, |
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715 area_t **areas) { |
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716 geo_t *visit_geo; |
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717 int i; |
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718 |
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719 for(visit_geo = STAILQ_HEAD(rdman->all_geos); |
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720 visit_geo != NULL; |
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721 visit_geo = STAILQ_NEXT(geo_t, next, visit_geo)) { |
|
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722 if(visit_geo->flags & GEF_DIRTY) |
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723 clean_shape(visit_geo->shape); |
|
57
ab028c9f0930
Ability to hidden shapes and action of visibility.
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|
724 if(visit_geo->flags & GEF_HIDDEN) |
|
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Ability to hidden shapes and action of visibility.
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725 continue; |
|
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726 for(i = 0; i < n_areas; i++) { |
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727 if(is_overlay(visit_geo->cur_area, areas[i])) { |
| 22 | 728 draw_shape(rdman, visit_geo->shape); |
|
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729 break; |
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730 } |
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731 } |
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732 } |
| 13 | 733 } |
| 734 | |
|
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735 |
| 135 | 736 /*! \page coord_opacity How to support opacity attribute for group (coord)? |
| 737 * | |
| 738 * I have several ideas to do that. This page show you all ideas. | |
| 739 * | |
| 740 * \section idea_one First One | |
| 741 * Change the structure of tree of coords. It is organized as tree of | |
| 742 * SVG document, shapes and coords are putten in tree with order the same | |
| 743 * as the document. The idea can solve the problem, but also seriously | |
| 744 * impact current code. | |
| 745 * | |
| 746 * \section idea_two Second One | |
| 747 * Add opacity and agg_opacity attribute to coord_t, and update | |
| 748 * | |
| 749 */ | |
| 750 | |
| 13 | 751 /*! \brief Re-draw all changed shapes or shapes affected by changed coords. |
| 752 * | |
| 753 * A coord object has a geo to keep track the range that it's members will | |
| 754 * draw on. Geo of a coord should be recomputed when the coord is changed. | |
| 755 * Geo of a coord used to accelerate finding overlay shape objects of | |
| 756 * a specified geo. A coord object also must be recomputed when one of | |
| 757 * it's members is changed. | |
| 758 * | |
| 759 * New and old geo values of a coord object that is recomputed for | |
| 760 * changing of it-self must be used to find overlay shape objects. | |
| 761 * New and old geo values of a shape should also be used to find | |
| 762 * overlay shape objects, too. If a shape's coord is changed, shape's | |
| 763 * geo object is not used to find overlay shape objects any more. | |
| 764 * | |
| 765 * steps: | |
| 766 * - update chagned coord objects | |
| 14 | 767 * - recompute area for changed coord objects |
| 13 | 768 * - recompute geo for members shape objects |
| 14 | 769 * - clear dirty of geo for members to prevent from |
| 770 * recomputing for change of shape objects. | |
| 771 * - add old and new area value to list of dirty areas. | |
| 13 | 772 * - recompute geo for changed shape objects |
| 14 | 773 * - only if a shape object is dirty. |
| 774 * - put new and old value of area of geo to list of dirty areas. | |
| 775 * - Scan all shapes and redraw shapes overlaid with dirty areas. | |
| 13 | 776 * |
| 14 | 777 * dirty flag of coord objects is cleared after update. |
|
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778 * dirty flag of geo objects is also cleared after recomputing. |
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779 * Clean dirty flag can prevent redundant computing for geo and |
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780 * corod objects. |
| 14 | 781 * |
| 13 | 782 */ |
| 783 int rdman_redraw_changed(redraw_man_t *rdman) { | |
| 28 | 784 int r; |
| 13 | 785 int n_dirty_areas; |
| 14 | 786 area_t **dirty_areas; |
| 13 | 787 |
| 29 | 788 r = clean_rdman_dirties(rdman); |
|
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789 if(r != OK) |
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790 return ERR; |
| 13 | 791 |
|
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792 n_dirty_areas = rdman->n_dirty_areas; |
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793 dirty_areas = rdman->dirty_areas; |
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794 if(n_dirty_areas > 0) { |
| 135 | 795 /*! \brief Draw shapes in preorder of coord tree and support opacity |
| 796 * rules. | |
| 797 */ | |
|
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|
798 clean_canvas(rdman->cr); |
| 22 | 799 draw_shapes_in_areas(rdman, n_dirty_areas, dirty_areas); |
|
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800 copy_cr_2_backend(rdman, rdman->n_dirty_areas, rdman->dirty_areas); |
|
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801 rdman->n_dirty_areas = 0; |
|
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802 reset_clip(rdman); |
|
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803 } |
|
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A simple animation using rdman_redraw_changed().
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804 rdman->n_dirty_areas = 0; |
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805 |
|
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806 return OK; |
|
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807 } |
|
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|
808 |
| 38 | 809 /* NOTE: Before redrawing, the canvas/surface must be cleaned. |
| 810 * NOTE: After redrawing, the content must be copied to the backend surface. | |
| 811 */ | |
| 812 | |
|
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|
813 int rdman_redraw_all(redraw_man_t *rdman) { |
|
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|
814 geo_t *geo; |
| 29 | 815 int r; |
|
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816 |
| 29 | 817 r = clean_rdman_dirties(rdman); |
| 818 if(r != OK) | |
| 819 return ERR; | |
|
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820 |
| 37 | 821 clean_canvas(rdman->cr); |
| 822 | |
|
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changeset
|
823 for(geo = STAILQ_HEAD(rdman->all_geos); |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
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parents:
14
diff
changeset
|
824 geo != NULL; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
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|
825 geo = STAILQ_NEXT(geo_t, next, geo)) { |
|
57
ab028c9f0930
Ability to hidden shapes and action of visibility.
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parents:
38
diff
changeset
|
826 if(geo->flags & GEF_HIDDEN) |
|
ab028c9f0930
Ability to hidden shapes and action of visibility.
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parents:
38
diff
changeset
|
827 continue; |
| 22 | 828 draw_shape(rdman, geo->shape); |
| 13 | 829 } |
|
24
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
830 copy_cr_2_backend(rdman, 0, NULL); |
| 29 | 831 rdman->n_dirty_areas = 0; |
| 13 | 832 |
| 833 return OK; | |
| 12 | 834 } |
| 835 | |
| 37 | 836 int rdman_redraw_area(redraw_man_t *rdman, co_aix x, co_aix y, |
| 837 co_aix w, co_aix h) { | |
| 838 area_t area; | |
| 839 int r; | |
| 840 | |
| 841 area.x = x; | |
| 842 area.y = y; | |
| 843 area.w = w; | |
| 844 area.h = h; | |
| 845 add_dirty_area(rdman, &area); | |
| 846 | |
| 847 r = rdman_redraw_changed(rdman); | |
| 848 | |
| 849 return r; | |
| 850 } | |
| 851 | |
|
30
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents:
29
diff
changeset
|
852 int rdman_force_clean(redraw_man_t *rdman) { |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents:
29
diff
changeset
|
853 int r; |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents:
29
diff
changeset
|
854 |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents:
29
diff
changeset
|
855 r = clean_rdman_dirties(rdman); |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
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parents:
29
diff
changeset
|
856 |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents:
29
diff
changeset
|
857 return r; |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents:
29
diff
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|
858 } |
|
e06a4a667ce2
Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
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diff
changeset
|
859 |
|
18
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
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|
860 shnode_t *shnode_new(redraw_man_t *rdman, shape_t *shape) { |
|
0f3baa488a62
Support solid color paint for fill.
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parents:
17
diff
changeset
|
861 shnode_t *node; |
|
0f3baa488a62
Support solid color paint for fill.
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parents:
17
diff
changeset
|
862 |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
863 node = (shnode_t *)elmpool_elm_alloc(rdman->shnode_pool); |
|
0f3baa488a62
Support solid color paint for fill.
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parents:
17
diff
changeset
|
864 if(node) { |
|
0f3baa488a62
Support solid color paint for fill.
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parents:
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diff
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|
865 node->shape = shape; |
|
0f3baa488a62
Support solid color paint for fill.
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parents:
17
diff
changeset
|
866 node->next = NULL; |
|
0f3baa488a62
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parents:
17
diff
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|
867 } |
|
0f3baa488a62
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Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
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|
868 return node; |
|
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Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
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|
869 } |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
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|
870 |
| 135 | 871 /*! \page dirty Dirty geo, coord, and area. |
| 872 * | |
| 873 * \section dirty_of_ego Dirty of geo | |
|
16
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
874 * A geo is dirty when any of the shape, size or positions is changed. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
875 * It's geo and positions should be recomputed before drawing. So, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
876 * dirty geos are marked as dirty and put into dirty_geos list. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
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|
877 * The list is inspected before drawing to make sure the right shape, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
878 * size, and positions. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
879 * |
| 135 | 880 * \section dirty_of_coord Dirty of coord |
|
16
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
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|
881 * A coord is dirty when it's transformation matrix being changed. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
882 * Dirty coords are marked as dirty and put into dirty_coords list. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
883 * Once a coord is dirty, every member geos of it are also dirty. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
884 * Because, their shape, size and positions will be changed. But, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
885 * they are not marked as dirty and put into dirty_geos list, since |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
886 * all these member geos will be recomputed for computing new current |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
887 * area of the coord. The changes of a coord also affect child |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
888 * coords. Once parent is dirty, all children are also dirty for |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
889 * their aggregate matrix out of date. Dirty coords should be |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
890 * clean in preorder of tree traversal. The dirty_coords list |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
891 * are sorted to keep the order before cleaning. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
892 * Whenever a coord is marked dirty and put into dirty_coords list, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
893 * all it's children should also be marked and put. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
894 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
895 * The procedure of clean coords comprises recomputing aggregate |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
896 * tranform matrix and area where members spreading in. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
897 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
898 * The list is inspected before drawing to recompute new shape, size, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
899 * and positions of member geos of coords in the list. The drity |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
900 * flag of member geos will be clean. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
901 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
902 * Clean coords should be performed before clean geos, since clean |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
903 * coords will also clean member geos. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
904 */ |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
905 |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
906 /* |
| 12 | 907 * When redraw an area, the affected elements may also extend to |
| 908 * outside of the area. Since the order of drawing will change | |
| 909 * the result, it will infect more and more elements to keep | |
| 910 * drawing order althrough they are overlaid directly with | |
| 911 * specified area. | |
| 912 * | |
| 913 * To fix the problem, we don't extend the set of redrawing to | |
| 914 * elements they are not overliad directly. The redrawing is | |
| 915 * performed on a temporary surface, clipped to fit the area, and | |
| 916 * update only specified area on the destinate surface. | |
| 917 */ | |
| 918 | |
| 919 /* | |
| 920 * To accelerate speed of transformation, when a matrix changed, | |
| 921 * transformation should be aggregated and computed in a loop. | |
| 922 * It can get intereset of higher hit rate of cache. | |
| 923 * - shapes prvoide list of positions needed to be transformed. | |
| 924 * - redraw_man transforms positions from shapes. | |
| 925 * - shapes drawing with result of transforms. | |
| 926 * - shapes should be called to give them a chance to update geometries. | |
| 927 */ | |
| 928 | |
| 13 | 929 /* |
| 930 * functions: | |
| 931 * - redraw all | |
| 932 * - redraw changed | |
| 933 */ | |
| 934 | |
|
73
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
935 /* Implment factory and strategy functions for observers and subjects. |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
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|
936 */ |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
937 static subject_t *ob_subject_alloc(ob_factory_t *factory) { |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
938 redraw_man_t *rdman; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
939 subject_t *subject; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
940 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
941 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
942 subject = elmpool_elm_alloc(rdman->subject_pool); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
943 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
944 return subject; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
945 } |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
946 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
947 static void ob_subject_free(ob_factory_t *factory, subject_t *subject) { |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
948 redraw_man_t *rdman; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
949 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
950 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
951 elmpool_elm_free(rdman->subject_pool, subject); |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
952 } |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
953 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
954 static observer_t *ob_observer_alloc(ob_factory_t *factory) { |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
955 redraw_man_t *rdman; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
956 observer_t *observer; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
957 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
958 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
959 observer = elmpool_elm_alloc(rdman->observer_pool); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
960 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
961 return observer; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
962 } |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
963 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
964 static void ob_observer_free(ob_factory_t *factory, observer_t *observer) { |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
965 redraw_man_t *rdman; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
966 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
967 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
968 elmpool_elm_free(rdman->observer_pool, observer); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
969 } |
|
9ab15ebc9061
Observer for mouse events
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parents:
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diff
changeset
|
970 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
971 static subject_t *ob_get_parent_subject(ob_factory_t *factory, |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
972 subject_t *cur_subject) { |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
973 redraw_man_t *rdman; |
|
79
5bcb329a5157
Fix bug of core dump caused by forget to check if parent is NULL, root.
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parents:
75
diff
changeset
|
974 coord_t *coord, *parent_coord; |
|
73
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Observer for mouse events
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parents:
58
diff
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|
975 geo_t *geo; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
976 subject_t *parent; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
977 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
978 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
979 switch(cur_subject->obj_type) { |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
980 case OBJT_GEO: |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
981 geo = (geo_t *)cur_subject->obj; |
|
79
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982 parent_coord = geo->shape->coord; |
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983 parent = parent_coord->mouse_event; |
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984 break; |
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985 case OBJT_COORD: |
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986 coord = (coord_t *)cur_subject->obj; |
|
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987 parent_coord = coord->parent; |
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988 if(parent_coord == NULL) { |
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989 parent = NULL; |
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990 break; |
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991 } |
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992 parent = parent_coord->mouse_event; |
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993 break; |
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994 default: |
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995 parent = NULL; |
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996 break; |
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997 } |
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998 |
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999 return parent; |
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1000 } |
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1001 |
| 12 | 1002 #ifdef UNITTEST |
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1003 /* Test cases */ |
| 12 | 1004 |
| 1005 #include <CUnit/Basic.h> | |
| 19 | 1006 #include "paint.h" |
| 12 | 1007 |
| 1008 struct _sh_dummy { | |
| 1009 shape_t shape; | |
| 1010 co_aix x, y; | |
| 1011 co_aix w, h; | |
| 119 | 1012 int trans_cnt; |
|
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1013 int draw_cnt; |
| 12 | 1014 }; |
| 1015 | |
| 1016 shape_t *sh_dummy_new(co_aix x, co_aix y, co_aix w, co_aix h) { | |
| 1017 sh_dummy_t *dummy; | |
| 1018 | |
| 1019 dummy = (sh_dummy_t *)malloc(sizeof(sh_dummy_t)); | |
| 1020 if(dummy == NULL) | |
| 1021 return NULL; | |
| 1022 | |
|
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1023 memset(dummy, 0, sizeof(sh_dummy_t)); |
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1024 |
| 12 | 1025 dummy->x = x; |
| 1026 dummy->y = y; | |
| 1027 dummy->w = w; | |
| 1028 dummy->h = h; | |
| 119 | 1029 dummy->trans_cnt = 0; |
|
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1030 dummy->draw_cnt = 0; |
| 12 | 1031 |
| 1032 return (shape_t *)dummy; | |
| 1033 } | |
| 1034 | |
| 1035 void sh_dummy_free(shape_t *sh) { | |
| 1036 free(sh); | |
| 1037 } | |
| 1038 | |
| 1039 void sh_dummy_transform(shape_t *shape) { | |
| 1040 sh_dummy_t *dummy = (sh_dummy_t *)shape; | |
| 1041 co_aix poses[2][2]; | |
| 1042 co_aix x1, y1, x2, y2; | |
| 1043 | |
| 1044 if(shape->geo && shape->coord) { | |
| 1045 x1 = dummy->x; | |
| 1046 y1 = dummy->y; | |
| 1047 x2 = x1 + dummy->w; | |
| 1048 y2 = y1 + dummy->h; | |
| 1049 | |
| 1050 coord_trans_pos(shape->coord, &x1, &y1); | |
| 1051 coord_trans_pos(shape->coord, &x2, &y2); | |
| 1052 poses[0][0] = x1; | |
| 1053 poses[0][1] = y1; | |
| 1054 poses[1][0] = x2; | |
| 1055 poses[1][1] = y2; | |
| 1056 | |
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1057 if(shape->geo) |
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1058 geo_from_positions(shape->geo, 2, poses); |
| 12 | 1059 } |
| 119 | 1060 dummy->trans_cnt++; |
| 12 | 1061 } |
| 1062 | |
|
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1063 void sh_dummy_fill(shape_t *shape, cairo_t *cr) { |
|
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1064 sh_dummy_t *dummy; |
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1065 |
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1066 dummy = (sh_dummy_t *)shape; |
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1067 dummy->draw_cnt++; |
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1068 } |
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1069 |
| 19 | 1070 static void dummy_paint_prepare(paint_t *paint, cairo_t *cr) { |
| 1071 } | |
| 1072 | |
| 1073 static void dummy_paint_free(paint_t *paint) { | |
| 1074 if(paint) | |
| 1075 free(paint); | |
| 1076 } | |
| 1077 | |
| 1078 paint_t *dummy_paint_new(redraw_man_t *rdman) { | |
| 1079 paint_t *paint; | |
| 1080 | |
| 1081 paint = (paint_t *)malloc(sizeof(paint_t)); | |
| 1082 if(paint == NULL) | |
| 1083 return NULL; | |
| 1084 | |
| 1085 paint_init(paint, dummy_paint_prepare, dummy_paint_free); | |
| 1086 | |
| 1087 return paint; | |
| 1088 } | |
| 1089 | |
| 12 | 1090 void test_rdman_find_overlaid_shapes(void) { |
| 1091 redraw_man_t rdman; | |
| 1092 geo_t geo; | |
| 1093 coord_t *coords[3]; | |
| 1094 shape_t *shapes[5]; | |
| 1095 geo_t **overlays; | |
| 13 | 1096 co_aix pos[2][2]; |
| 12 | 1097 int n; |
| 1098 int i; | |
| 1099 | |
|
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1100 redraw_man_init(&rdman, NULL, NULL); |
| 12 | 1101 coords[0] = rdman.root_coord; |
| 1102 for(i = 1; i < 3; i++) { | |
| 1103 coords[i] = rdman_coord_new(&rdman, rdman.root_coord); | |
| 1104 } | |
| 1105 for(i = 0; i < 5; i++) { | |
| 1106 shapes[i] = sh_dummy_new(10 + i * 30, 10 + i * 20, 25, 15); | |
| 1107 CU_ASSERT(shapes[i] != NULL); | |
| 1108 } | |
| 1109 for(i = 0; i < 3; i++) | |
| 1110 rdman_add_shape(&rdman, shapes[i], coords[1]); | |
| 1111 for(i = 3; i < 5; i++) | |
| 1112 rdman_add_shape(&rdman, shapes[i], coords[2]); | |
| 1113 | |
| 1114 coords[1]->matrix[0] = 2; | |
| 1115 coords[0]->matrix[4] = 2; | |
| 1116 | |
| 1117 update_aggr_matrix(coords[0]); | |
| 1118 for(i = 0; i < 5; i++) | |
| 1119 sh_dummy_transform(shapes[i]); | |
| 1120 | |
| 13 | 1121 pos[0][0] = 100; |
| 1122 pos[0][1] = 120; | |
| 1123 pos[1][0] = 100 + 140; | |
| 1124 pos[1][1] = 120 + 40; | |
|
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1125 geo_init(&geo); |
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1126 geo_from_positions(&geo, 2, pos); |
| 12 | 1127 |
| 1128 n = rdman_find_overlaid_shapes(&rdman, &geo, &overlays); | |
| 1129 CU_ASSERT(n == 2); | |
| 1130 CU_ASSERT(overlays != NULL); | |
| 1131 CU_ASSERT(overlays[0] == shapes[2]->geo); | |
| 1132 CU_ASSERT(overlays[1] == shapes[3]->geo); | |
| 1133 | |
| 1134 free(overlays); | |
| 1135 for(i = 0; i < 5; i++) | |
| 1136 sh_dummy_free(shapes[i]); | |
| 1137 | |
| 1138 redraw_man_destroy(&rdman); | |
| 1139 } | |
| 1140 | |
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1141 void test_rdman_redraw_changed(void) { |
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1142 coord_t *coords[3]; |
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1143 shape_t *shapes[3]; |
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1144 sh_dummy_t **dummys; |
| 19 | 1145 paint_t *paint; |
|
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1146 redraw_man_t *rdman; |
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1147 redraw_man_t _rdman; |
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1148 int i; |
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1149 |
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1150 dummys = (sh_dummy_t **)shapes; |
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1151 |
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1152 rdman = &_rdman; |
|
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1153 redraw_man_init(rdman, NULL, NULL); |
| 19 | 1154 paint = dummy_paint_new(rdman); |
|
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1155 for(i = 0; i < 3; i++) { |
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1156 shapes[i] = sh_dummy_new(0, 0, 50, 50); |
| 19 | 1157 rdman_paint_fill(rdman, paint, shapes[i]); |
|
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1158 coords[i] = rdman_coord_new(rdman, rdman->root_coord); |
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1159 coords[i]->matrix[2] = 10 + i * 100; |
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1160 coords[i]->matrix[5] = 10 + i * 100; |
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1161 rdman_coord_changed(rdman, coords[i]); |
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1162 rdman_add_shape(rdman, shapes[i], coords[i]); |
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1163 } |
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1164 rdman_redraw_all(rdman); |
| 119 | 1165 CU_ASSERT(dummys[0]->trans_cnt == 1); |
| 1166 CU_ASSERT(dummys[1]->trans_cnt == 1); | |
| 1167 CU_ASSERT(dummys[2]->trans_cnt == 1); | |
|
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1168 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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1169 CU_ASSERT(dummys[1]->draw_cnt == 1); |
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1170 CU_ASSERT(dummys[2]->draw_cnt == 1); |
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1171 |
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1172 coords[2]->matrix[2] = 100; |
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1173 coords[2]->matrix[5] = 100; |
| 119 | 1174 rdman_coord_changed(rdman, coords[0]); |
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1175 rdman_coord_changed(rdman, coords[2]); |
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1176 rdman_redraw_changed(rdman); |
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1177 |
| 119 | 1178 CU_ASSERT(dummys[0]->draw_cnt == 2); |
|
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1179 CU_ASSERT(dummys[1]->draw_cnt == 2); |
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1180 CU_ASSERT(dummys[2]->draw_cnt == 2); |
| 19 | 1181 |
| 1182 paint->free(paint); | |
| 1183 redraw_man_destroy(rdman); | |
|
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1184 } |
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1185 |
| 12 | 1186 CU_pSuite get_redraw_man_suite(void) { |
| 1187 CU_pSuite suite; | |
| 1188 | |
| 1189 suite = CU_add_suite("Suite_redraw_man", NULL, NULL); | |
| 1190 CU_ADD_TEST(suite, test_rdman_find_overlaid_shapes); | |
|
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1191 CU_ADD_TEST(suite, test_rdman_redraw_changed); |
| 12 | 1192 |
| 1193 return suite; | |
| 1194 } | |
| 1195 | |
| 1196 #endif /* UNITTEST */ |