Mercurial > MadButterfly
annotate src/redraw_man.c @ 105:8d97455811a8
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| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Thu, 11 Sep 2008 11:42:31 +0800 |
| parents | 98c83441d7d6 |
| children | 1909d53071ab |
| 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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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 |
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44 for(i = 1; i < num; i++) { |
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45 val = *(unsigned int *)(elms[i] + off); |
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46 for(j = i; j > 0; j--) { |
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47 if(*(unsigned int *)(elms[j - 1] + off) <= val) |
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48 break; |
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49 elms[j] = elms[j - 1]; |
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50 } |
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51 elms[j] = elms[i]; |
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52 } |
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53 } |
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54 |
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55 static int extend_memblk(void **buf, int o_size, int n_size) { |
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56 void *new_buf; |
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57 |
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58 new_buf = realloc(*buf, n_size); |
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59 if(new_buf == NULL) |
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60 return ERR; |
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61 |
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Accept mouse/pointer event and hint the shape that the pointer is over.
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62 *buf = new_buf; |
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63 |
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64 return OK; |
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65 } |
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66 |
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67 static int add_dirty_geo(redraw_man_t *rdman, geo_t *geo) { |
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68 int max_dirty_geos; |
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69 int r; |
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70 |
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71 if(rdman->n_dirty_geos >= rdman->max_dirty_geos) { |
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72 max_dirty_geos = rdman->n_geos; |
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73 r = extend_memblk((void **)&rdman->dirty_geos, |
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74 sizeof(geo_t *) * rdman->n_dirty_geos, |
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75 sizeof(geo_t *) * max_dirty_geos); |
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76 if(r != OK) |
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77 return ERR; |
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78 rdman->max_dirty_geos = max_dirty_geos; |
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79 } |
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80 |
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81 rdman->dirty_geos[rdman->n_dirty_geos++] = geo; |
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82 return OK; |
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83 } |
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84 |
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85 static int add_dirty_area(redraw_man_t *rdman, area_t *area) { |
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86 int max_dirty_areas; |
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87 int r; |
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88 |
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89 if(rdman->n_dirty_areas >= rdman->max_dirty_areas) { |
| 37 | 90 /* every geo object and coord object can contribute 2 areas. |
| 91 * rdman_draw_area() may also contribute 1 area. | |
| 92 */ | |
| 93 max_dirty_areas = (rdman->n_geos + rdman->n_coords) * 2 + 1; | |
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94 r = extend_memblk((void **)&rdman->dirty_areas, |
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95 sizeof(area_t *) * rdman->n_dirty_areas, |
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96 sizeof(area_t *) * max_dirty_areas); |
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97 if(r != OK) |
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98 return ERR; |
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99 rdman->max_dirty_areas = max_dirty_areas; |
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100 } |
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101 |
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102 rdman->dirty_areas[rdman->n_dirty_areas++] = area; |
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103 return OK; |
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104 } |
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105 |
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106 static void area_to_positions(area_t *area, co_aix (*poses)[2]) { |
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107 poses[0][0] = area->x; |
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108 poses[0][1] = area->y; |
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109 poses[1][0] = area->x + area->w; |
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110 poses[1][1] = area->y + area->h;; |
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111 } |
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112 |
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113 int redraw_man_init(redraw_man_t *rdman, cairo_t *cr, cairo_t *backend) { |
| 12 | 114 extern void redraw_man_destroy(redraw_man_t *rdman); |
| 115 | |
| 116 memset(rdman, 0, sizeof(redraw_man_t)); | |
| 117 | |
| 118 rdman->geo_pool = elmpool_new(sizeof(geo_t), 128); | |
| 119 if(rdman->geo_pool == NULL) | |
| 120 return ERR; | |
| 121 | |
| 122 rdman->coord_pool = elmpool_new(sizeof(coord_t), 16); | |
| 123 if(rdman->coord_pool == NULL) { | |
| 124 elmpool_free(rdman->geo_pool); | |
| 125 return ERR; | |
| 126 } | |
| 127 | |
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128 rdman->shnode_pool = elmpool_new(sizeof(shnode_t), 16); |
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129 if(rdman->shnode_pool == NULL) { |
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130 elmpool_free(rdman->geo_pool); |
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131 elmpool_free(rdman->coord_pool); |
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132 return ERR; |
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133 } |
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134 |
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135 rdman->observer_pool = elmpool_new(sizeof(observer_t), 32); |
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136 if(rdman->observer_pool == NULL) { |
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137 elmpool_free(rdman->geo_pool); |
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138 elmpool_free(rdman->coord_pool); |
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139 elmpool_free(rdman->shnode_pool); |
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140 return ERR; |
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141 } |
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142 |
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143 rdman->subject_pool = elmpool_new(sizeof(subject_t), 32); |
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144 if(rdman->subject_pool == NULL) { |
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145 elmpool_free(rdman->geo_pool); |
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146 elmpool_free(rdman->coord_pool); |
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147 elmpool_free(rdman->shnode_pool); |
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148 elmpool_free(rdman->observer_pool); |
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149 return ERR; |
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150 } |
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151 |
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152 rdman->ob_factory.subject_alloc = ob_subject_alloc; |
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153 rdman->ob_factory.subject_free = ob_subject_free; |
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154 rdman->ob_factory.observer_alloc = ob_observer_alloc; |
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155 rdman->ob_factory.observer_free = ob_observer_free; |
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156 rdman->ob_factory.get_parent_subject = ob_get_parent_subject; |
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157 |
| 12 | 158 rdman->root_coord = elmpool_elm_alloc(rdman->coord_pool); |
| 159 if(rdman->root_coord == NULL) | |
| 160 redraw_man_destroy(rdman); | |
| 13 | 161 rdman->n_coords = 1; |
| 12 | 162 coord_init(rdman->root_coord, NULL); |
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163 rdman->root_coord->mouse_event = subject_new(&rdman->ob_factory, |
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164 rdman->root_coord, |
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165 OBJT_COORD); |
| 12 | 166 |
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167 rdman->cr = cr; |
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168 rdman->backend = backend; |
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169 |
| 12 | 170 return OK; |
| 171 } | |
| 172 | |
| 173 void redraw_man_destroy(redraw_man_t *rdman) { | |
| 174 elmpool_free(rdman->coord_pool); | |
| 175 elmpool_free(rdman->geo_pool); | |
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176 elmpool_free(rdman->shnode_pool); |
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177 elmpool_free(rdman->observer_pool); |
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178 elmpool_free(rdman->subject_pool); |
| 13 | 179 if(rdman->dirty_coords) |
| 180 free(rdman->dirty_coords); | |
| 14 | 181 if(rdman->dirty_geos) |
| 182 free(rdman->dirty_geos); | |
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183 if(rdman->gen_geos) |
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184 free(rdman->gen_geos); |
| 12 | 185 } |
| 186 | |
| 187 | |
| 188 #define ASSERT(x) | |
| 189 /* | |
| 190 * Change transformation matrix | |
| 191 * - update aggregated transformation matrix | |
| 192 * - of coord_t object been changed. | |
| 193 * - of children coord_t objects. | |
| 194 * - redraw members of coord_t objects. | |
| 195 * - redraw shape objects they are overlaid with members. | |
| 196 * - find out overlaid shape objects. | |
| 197 * - geo_t of a coord_t object | |
| 198 * - can make finding more efficiency. | |
| 199 * - fill overlay geo_t objects of members. | |
| 200 * | |
| 201 * Change a shape object | |
| 202 * - redraw changed object. | |
| 203 * - redraw shape objects they are overlaid with changed object. | |
| 204 * - find out overlaid shape objects. | |
| 205 * | |
| 206 * That coord and geo of shape objects are setted by user code | |
| 207 * give user code a chance to collect coord and geo objects together | |
| 208 * and gain interest of higher cache hit rate. | |
| 209 */ | |
| 210 | |
| 211 /*! \brief Find out all affected shape objects. | |
| 212 * | |
| 213 * Find out all shape objects that are overalid with geo_t of | |
| 214 * a geometry changed object. | |
| 215 * | |
| 216 * Linear scan geo_t objects of all shape objects in all_shapes | |
| 217 * list of a redraw_man_t object. | |
| 218 */ | |
| 219 int rdman_find_overlaid_shapes(redraw_man_t *rdman, geo_t *geo, | |
| 220 geo_t ***overlays) { | |
| 221 int n_geos; | |
| 222 geo_t **geos; | |
| 223 geo_t *geo_cur; | |
| 224 int n_overlays; | |
| 225 geo_t **_overlays; | |
| 226 int i; | |
| 227 | |
| 228 n_geos = rdman->n_geos; | |
| 229 | |
| 230 geos = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 231 if(geos == NULL) | |
| 232 return -1; | |
| 233 | |
| 234 _overlays = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 235 if(geos == NULL) { | |
| 236 free(geos); | |
| 237 return -1; | |
| 238 } | |
| 239 | |
| 240 geo_cur = STAILQ_HEAD(rdman->all_geos); | |
| 241 for(i = 0; i < n_geos; i++) { | |
| 242 geos[i] = geo_cur; | |
| 243 geo_cur = STAILQ_NEXT(geo_t, next, geo_cur); | |
| 244 } | |
| 245 geo_mark_overlay(geo, n_geos, geos, &n_overlays, _overlays); | |
| 246 | |
| 247 free(geos); | |
| 248 *overlays = _overlays; | |
| 249 | |
| 250 return n_overlays; | |
| 251 } | |
| 252 | |
| 253 int rdman_add_shape(redraw_man_t *rdman, shape_t *shape, coord_t *coord) { | |
| 254 geo_t *geo; | |
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255 #ifdef GEO_ORDER |
| 13 | 256 geo_t *visit; |
| 257 unsigned int next_order; | |
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258 #endif |
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259 int r; |
| 12 | 260 |
| 261 geo = elmpool_elm_alloc(rdman->geo_pool); | |
| 262 if(geo == NULL) | |
| 263 return ERR; | |
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264 |
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265 geo_init(geo); |
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266 geo->mouse_event = subject_new(&rdman->ob_factory, geo, OBJT_GEO); |
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267 |
| 12 | 268 sh_attach_geo(shape, geo); |
| 269 STAILQ_INS_TAIL(rdman->all_geos, geo_t, next, geo); | |
| 270 rdman->n_geos++; | |
| 13 | 271 |
| 58 | 272 /*! \todo remove order number. */ |
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273 #ifdef GEO_ORDER |
| 13 | 274 geo->order = ++rdman->next_geo_order; |
| 275 if(geo->order == 0) { | |
| 276 next_order = 0; | |
| 277 for(visit = STAILQ_HEAD(rdman->all_geos); | |
| 278 visit != NULL; | |
| 279 visit = STAILQ_NEXT(geo_t, next, visit)) | |
| 280 visit->order = ++next_order; | |
| 281 rdman->next_geo_order = next_order; | |
| 282 } | |
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283 #endif |
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284 |
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285 /* New one should be dirty to recompute it when drawing. */ |
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286 geo->flags |= GEF_DIRTY; |
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287 r = add_dirty_geo(rdman, geo); |
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288 if(r != OK) |
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289 return ERR; |
| 13 | 290 |
| 12 | 291 sh_attach_coord(shape, coord); |
| 292 | |
| 293 return OK; | |
| 294 } | |
| 295 | |
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296 /*! \brief Remove a shape object from redraw manager. |
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297 * |
| 58 | 298 * \todo redraw shape objects that overlaid with removed one. |
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299 */ |
| 12 | 300 int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape) { |
| 301 STAILQ_REMOVE(rdman->all_geos, geo_t, next, shape->geo); | |
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302 subject_free(&rdman->ob_factory, shape->geo->mouse_event); |
| 104 | 303 sh_detach_geo(shape); |
| 12 | 304 elmpool_elm_free(rdman->geo_pool, shape->geo); |
| 305 rdman->n_geos--; | |
| 306 sh_detach_coord(shape); | |
| 307 return OK; | |
| 308 } | |
| 309 | |
| 310 coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent) { | |
| 13 | 311 coord_t *coord, *root_coord; |
| 312 coord_t *visit; | |
| 12 | 313 |
| 314 coord = elmpool_elm_alloc(rdman->coord_pool); | |
| 315 if(coord == NULL) | |
| 316 return NULL; | |
| 317 | |
| 318 coord_init(coord, parent); | |
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319 coord->mouse_event = subject_new(&rdman->ob_factory, |
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320 coord, |
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321 OBJT_COORD); |
| 13 | 322 rdman->n_coords++; |
| 323 | |
| 324 coord->order = ++rdman->next_coord_order; | |
| 325 if(coord->order == 0) { | |
| 326 rdman->next_coord_order = 0; | |
| 327 root_coord = visit = rdman->root_coord; | |
| 328 /* skip root coord. */ | |
| 329 visit = preorder_coord_subtree(root_coord, visit); | |
| 330 while(visit) { | |
| 331 visit->order = ++rdman->next_coord_order; | |
| 332 visit = preorder_coord_subtree(root_coord, visit); | |
| 333 } | |
| 334 } | |
| 12 | 335 |
| 336 return coord; | |
| 337 } | |
| 338 | |
| 339 /*! \brief Free a coord of a redraw_man_t object. | |
| 340 * | |
| 341 * \param coord is a coord_t without children and members. | |
| 342 * \return 0 for successful, -1 for error. | |
| 343 */ | |
| 344 int rdman_coord_free(redraw_man_t *rdman, coord_t *coord) { | |
| 345 coord_t *parent; | |
| 346 | |
| 347 parent = coord->parent; | |
| 348 if(parent == NULL) | |
| 349 return ERR; | |
| 350 | |
| 351 if(STAILQ_HEAD(coord->members) != NULL) | |
| 352 return ERR; | |
| 353 | |
| 354 if(STAILQ_HEAD(coord->children) != NULL) | |
| 355 return ERR; | |
| 356 | |
| 357 STAILQ_REMOVE(parent->children, coord_t, sibling, coord); | |
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358 subject_free(&rdman->ob_factory, coord->mouse_event); |
| 12 | 359 elmpool_elm_free(rdman->coord_pool, coord); |
| 13 | 360 rdman->n_coords--; |
| 361 | |
| 362 return OK; | |
| 363 } | |
| 364 | |
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365 static void make_sure_dirty_coords(redraw_man_t *rdman) { |
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366 int max_dirty_coords; |
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367 int r; |
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368 |
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369 if(rdman->n_dirty_coords >= rdman->max_dirty_coords) { |
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370 /* Max of dirty_coords is not big enough. */ |
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371 max_dirty_coords = rdman->max_dirty_coords + 16; |
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372 |
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373 r = extend_memblk((void **)&rdman->dirty_coords, |
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374 sizeof(coord_t *) * rdman->n_dirty_coords, |
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375 sizeof(coord_t *) * max_dirty_coords); |
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376 rdman->max_dirty_coords = max_dirty_coords; |
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377 } |
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378 } |
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379 |
| 13 | 380 /*! \brief Mark a coord is changed. |
| 381 * | |
| 382 * A changed coord_t object is marked as dirty and put | |
| 383 * into dirty_coords list. | |
| 384 */ | |
| 385 int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord) { | |
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386 coord_t *child; |
| 13 | 387 |
| 388 if(coord->flags & COF_DIRTY) | |
| 389 return OK; | |
| 390 | |
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391 /* Make the coord and child coords dirty. */ |
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392 for(child = coord; |
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393 child != NULL; |
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394 child = preorder_coord_subtree(coord, child)) { |
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395 make_sure_dirty_coords(rdman); |
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396 |
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397 rdman->dirty_coords[rdman->n_dirty_coords++] = child; |
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398 child->flags |= COF_DIRTY; |
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399 } |
| 13 | 400 |
| 401 return OK; | |
| 402 } | |
| 403 | |
|
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404 static int _rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
| 13 | 405 geo_t *geo; |
| 406 int r; | |
| 407 | |
| 408 geo = shape->geo; | |
| 409 | |
| 410 if(geo->flags & GEF_DIRTY) | |
| 411 return OK; | |
| 412 | |
| 413 r = add_dirty_geo(rdman, geo); | |
| 414 if(r == ERR) | |
| 415 return ERR; | |
| 416 geo->flags |= GEF_DIRTY; | |
| 12 | 417 |
| 418 return OK; | |
| 419 } | |
| 420 | |
|
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421 /*! \brief Mark a shape is changed. |
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422 * |
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423 * The geo_t object of a changed shape is mark as dirty and |
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424 * put into dirty_geos list. |
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425 */ |
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426 int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
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427 return _rdman_shape_changed(rdman, shape); |
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428 } |
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429 |
| 29 | 430 int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint) { |
| 431 shnode_t *node; | |
| 432 int r; | |
| 433 | |
| 434 for(node = STAILQ_HEAD(paint->members); | |
| 435 node != NULL; | |
| 436 node = STAILQ_NEXT(shnode_t, next, node)) { | |
| 437 r = _rdman_shape_changed(rdman, node->shape); | |
| 438 if(r != OK) | |
| 439 return ERR; | |
| 440 } | |
| 441 return OK; | |
| 442 } | |
| 443 | |
| 28 | 444 /* Clean dirties */ |
| 445 | |
|
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446 static int is_coord_subtree_hidden(coord_t *coord) { |
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447 while(coord) { |
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448 if(coord->flags & COF_HIDDEN) |
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449 return 1; |
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450 coord = coord->parent; |
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451 } |
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452 return 0; |
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453 } |
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454 |
| 28 | 455 static void clean_shape(shape_t *shape) { |
| 456 switch(shape->sh_type) { | |
| 457 case SHT_PATH: | |
| 458 sh_path_transform(shape); | |
| 459 break; | |
| 460 case SHT_TEXT: | |
| 461 sh_text_transform(shape); | |
| 462 break; | |
|
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463 case SHT_RECT: |
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464 sh_rect_transform(shape); |
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465 break; |
| 28 | 466 #ifdef UNITTEST |
| 467 default: | |
| 468 sh_dummy_transform(shape); | |
| 469 break; | |
| 470 #endif /* UNITTEST */ | |
| 471 } | |
| 472 shape->geo->flags &= ~GEF_DIRTY; | |
|
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473 |
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474 if(is_coord_subtree_hidden(shape->coord)) |
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475 shape->geo->flags |= GEF_HIDDEN; |
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476 else |
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477 shape->geo->flags &= ~GEF_HIDDEN; |
| 28 | 478 } |
| 479 | |
| 480 static int clean_coord(coord_t *coord) { | |
| 481 shape_t *shape; | |
| 482 geo_t *geo; | |
| 483 co_aix (*poses)[2]; | |
| 484 int cnt, pos_cnt; | |
| 485 | |
| 486 compute_aggr_of_coord(coord); | |
| 487 | |
| 488 /* Clean member shapes. */ | |
| 489 cnt = 0; | |
| 490 for(shape = STAILQ_HEAD(coord->members); | |
| 491 shape != NULL; | |
| 492 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 493 geo = shape->geo; | |
| 494 SWAP(geo->cur_area, geo->last_area, area_t *); | |
| 495 clean_shape(shape); | |
| 496 cnt++; | |
| 497 } | |
| 498 | |
| 499 /* Compute area of the coord. */ | |
| 500 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * 2 * cnt); | |
| 501 if(poses == NULL) | |
| 502 return ERR; | |
| 503 | |
| 504 pos_cnt = 0; | |
| 505 for(shape = STAILQ_HEAD(coord->members); | |
| 506 shape != NULL; | |
| 507 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 508 geo = shape->geo; | |
| 509 | |
| 510 area_to_positions(geo->cur_area, poses + pos_cnt); | |
| 511 pos_cnt += 2; | |
| 512 } | |
| 513 | |
| 514 SWAP(coord->cur_area, coord->last_area, area_t *); | |
| 515 area_init(coord->cur_area, pos_cnt, poses); | |
| 516 free(poses); | |
| 517 | |
| 518 coord->flags &= ~COF_DIRTY; | |
| 519 | |
| 520 return OK; | |
| 521 } | |
| 522 | |
| 523 static int clean_rdman_coords(redraw_man_t *rdman) { | |
| 524 coord_t *coord; | |
| 525 coord_t **dirty_coords; | |
| 526 int n_dirty_coords; | |
| 527 int i, r; | |
| 528 | |
| 529 n_dirty_coords = rdman->n_dirty_coords; | |
| 530 if(n_dirty_coords > 0) { | |
| 531 dirty_coords = rdman->dirty_coords; | |
| 532 _insert_sort((void **)dirty_coords, n_dirty_coords, | |
| 533 OFFSET(coord_t, order)); | |
| 534 for(i = 0; i < n_dirty_coords; i++) { | |
| 535 coord = dirty_coords[i]; | |
| 536 if(!(coord->flags & COF_DIRTY)) | |
| 537 continue; | |
| 538 r = clean_coord(coord); | |
| 539 if(r != OK) | |
| 540 return ERR; | |
| 541 /* These two steps can be avoided for drawing all. */ | |
| 542 add_dirty_area(rdman, &coord->areas[0]); | |
| 543 add_dirty_area(rdman, &coord->areas[1]); | |
| 544 } | |
| 545 rdman->n_dirty_coords = 0; | |
| 546 } | |
| 547 return OK; | |
| 548 } | |
| 549 | |
| 550 static int clean_rdman_geos(redraw_man_t *rdman) { | |
| 551 int i; | |
| 552 int n_dirty_geos; | |
| 553 geo_t **dirty_geos; | |
| 554 geo_t *visit_geo; | |
| 555 | |
| 556 n_dirty_geos = rdman->n_dirty_geos; | |
| 557 if(n_dirty_geos > 0) { | |
| 558 dirty_geos = rdman->dirty_geos; | |
| 559 for(i = 0; i < n_dirty_geos; i++) { | |
| 560 visit_geo = dirty_geos[i]; | |
| 561 if(!(visit_geo->flags & GEF_DIRTY)) | |
| 562 continue; | |
| 563 | |
| 564 SWAP(visit_geo->cur_area, visit_geo->last_area, area_t *); | |
| 565 clean_shape(visit_geo->shape); | |
| 566 add_dirty_area(rdman, visit_geo->cur_area); | |
| 567 add_dirty_area(rdman, visit_geo->last_area); | |
| 568 } | |
| 569 rdman->n_dirty_geos = 0; | |
| 570 } | |
| 571 | |
| 572 return OK; | |
| 573 } | |
| 574 | |
| 29 | 575 static int clean_rdman_dirties(redraw_man_t *rdman) { |
| 576 int r; | |
| 577 | |
| 578 r = clean_rdman_coords(rdman); | |
| 579 if(r != OK) | |
| 580 return ERR; | |
| 581 | |
| 582 r = clean_rdman_geos(rdman); | |
| 583 if(r != OK) | |
| 584 return ERR; | |
| 585 | |
| 586 return OK; | |
| 587 } | |
| 588 | |
| 589 | |
|
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590 /* Drawing and Redrawing |
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591 * ============================================================ |
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592 */ |
|
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593 |
|
26
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594 #ifndef UNITTEST |
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595 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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596 cairo_set_line_width(cr, shape->stroke_width); |
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597 } |
|
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598 |
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599 static void fill_path_preserve(redraw_man_t *rdman) { |
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600 cairo_fill_preserve(rdman->cr); |
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601 } |
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602 |
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603 static void fill_path(redraw_man_t *rdman) { |
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604 cairo_fill(rdman->cr); |
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605 } |
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606 |
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607 static void stroke_path(redraw_man_t *rdman) { |
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608 cairo_stroke(rdman->cr); |
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609 } |
|
26
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610 #else |
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611 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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612 } |
|
33
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613 |
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614 static void fill_path_preserve(redraw_man_t *rdman) { |
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615 } |
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616 |
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617 static void fill_path(redraw_man_t *rdman) { |
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618 } |
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619 |
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620 static void stroke_path(redraw_man_t *rdman) { |
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621 } |
|
26
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622 #endif |
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623 |
| 22 | 624 static void draw_shape(redraw_man_t *rdman, shape_t *shape) { |
| 625 paint_t *fill, *stroke; | |
|
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|
626 |
|
33
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627 if(shape->fill || shape->stroke) { |
| 19 | 628 switch(shape->sh_type) { |
| 629 case SHT_PATH: | |
|
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630 sh_path_draw(shape, rdman->cr); |
| 19 | 631 break; |
| 27 | 632 case SHT_TEXT: |
|
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633 sh_text_draw(shape, rdman->cr); |
| 27 | 634 break; |
|
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635 case SHT_RECT: |
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636 sh_rect_draw(shape, rdman->cr); |
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637 break; |
|
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|
638 #ifdef UNITTEST |
| 19 | 639 default: |
|
20
74d3d5dc9aaa
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640 sh_dummy_fill(shape, rdman->cr); |
| 19 | 641 break; |
|
17
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642 #endif /* UNITTEST */ |
| 19 | 643 } |
|
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644 |
|
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645 fill = shape->fill; |
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646 if(shape->fill) { |
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647 fill->prepare(fill, rdman->cr); |
|
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648 if(shape->stroke) |
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649 fill_path_preserve(rdman); |
|
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|
650 else |
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Fix bug of demo and remove *_fill() and *_stroke().
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|
651 fill_path(rdman); |
|
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Fix bug of demo and remove *_fill() and *_stroke().
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652 } |
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653 |
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|
654 stroke = shape->stroke; |
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|
655 if(stroke) { |
|
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Fix bug of demo and remove *_fill() and *_stroke().
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|
656 stroke->prepare(stroke, rdman->cr); |
|
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|
657 set_shape_stroke_param(shape, rdman->cr); |
|
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|
658 stroke_path(rdman); |
| 22 | 659 } |
| 660 } | |
| 13 | 661 } |
| 662 | |
|
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|
663 #ifndef UNITTEST |
|
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Fix bug of a dark line appear when animating.
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|
664 static void clean_canvas(cairo_t *cr) { |
| 58 | 665 /*! \todo clean to background color. */ |
|
79
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Fix bug of core dump caused by forget to check if parent is NULL, root.
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|
666 cairo_set_source_rgb(cr, 1, 1, 1); |
|
24
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|
667 cairo_paint(cr); |
|
16
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|
668 } |
|
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A simple animation using rdman_redraw_changed().
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|
669 |
|
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|
670 static void make_clip(cairo_t *cr, int n_dirty_areas, |
|
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671 area_t **dirty_areas) { |
|
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672 int i; |
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673 area_t *area; |
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674 |
|
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675 for(i = 0; i < n_dirty_areas; i++) { |
|
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676 area = dirty_areas[i]; |
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677 cairo_rectangle(cr, area->x, area->y, area->w, area->h); |
|
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678 } |
|
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679 cairo_clip(cr); |
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680 } |
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681 |
|
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682 static void reset_clip(redraw_man_t *rdman) { |
|
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683 cairo_reset_clip(rdman->backend); |
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684 } |
|
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|
685 |
|
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|
686 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
|
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687 area_t **dirty_areas) { |
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688 if(n_dirty_areas) |
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689 make_clip(rdman->backend, n_dirty_areas, dirty_areas); |
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|
690 |
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|
691 cairo_paint(rdman->backend); |
|
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|
692 } |
|
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Unittest for rdman_redraw_changed().
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|
693 #else /* UNITTEST */ |
|
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|
694 static void clean_canvas(cairo_t *cr) { |
|
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|
695 } |
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|
696 |
|
17
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Unittest for rdman_redraw_changed().
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|
697 static void reset_clip(redraw_man_t *rdman) { |
|
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Unittest for rdman_redraw_changed().
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|
698 } |
|
24
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|
699 |
|
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|
700 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
|
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|
701 area_t **dirty_areas) { |
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702 } |
|
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Unittest for rdman_redraw_changed().
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703 #endif /* UNITTEST */ |
|
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Unittest for rdman_redraw_changed().
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|
704 |
| 22 | 705 static void draw_shapes_in_areas(redraw_man_t *rdman, |
|
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|
706 int n_areas, |
|
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707 area_t **areas) { |
|
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|
708 geo_t *visit_geo; |
|
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709 int i; |
|
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|
710 |
|
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711 for(visit_geo = STAILQ_HEAD(rdman->all_geos); |
|
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|
712 visit_geo != NULL; |
|
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|
713 visit_geo = STAILQ_NEXT(geo_t, next, visit_geo)) { |
|
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714 if(visit_geo->flags & GEF_DIRTY) |
|
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A simple animation using rdman_redraw_changed().
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|
715 clean_shape(visit_geo->shape); |
|
57
ab028c9f0930
Ability to hidden shapes and action of visibility.
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diff
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|
716 if(visit_geo->flags & GEF_HIDDEN) |
|
ab028c9f0930
Ability to hidden shapes and action of visibility.
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|
717 continue; |
|
15
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718 for(i = 0; i < n_areas; i++) { |
|
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|
719 if(is_overlay(visit_geo->cur_area, areas[i])) { |
| 22 | 720 draw_shape(rdman, visit_geo->shape); |
|
15
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|
721 break; |
|
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722 } |
|
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|
723 } |
|
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|
724 } |
| 13 | 725 } |
| 726 | |
|
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|
727 |
| 13 | 728 /*! \brief Re-draw all changed shapes or shapes affected by changed coords. |
| 729 * | |
| 730 * A coord object has a geo to keep track the range that it's members will | |
| 731 * draw on. Geo of a coord should be recomputed when the coord is changed. | |
| 732 * Geo of a coord used to accelerate finding overlay shape objects of | |
| 733 * a specified geo. A coord object also must be recomputed when one of | |
| 734 * it's members is changed. | |
| 735 * | |
| 736 * New and old geo values of a coord object that is recomputed for | |
| 737 * changing of it-self must be used to find overlay shape objects. | |
| 738 * New and old geo values of a shape should also be used to find | |
| 739 * overlay shape objects, too. If a shape's coord is changed, shape's | |
| 740 * geo object is not used to find overlay shape objects any more. | |
| 741 * | |
| 742 * steps: | |
| 743 * - update chagned coord objects | |
| 14 | 744 * - recompute area for changed coord objects |
| 13 | 745 * - recompute geo for members shape objects |
| 14 | 746 * - clear dirty of geo for members to prevent from |
| 747 * recomputing for change of shape objects. | |
| 748 * - add old and new area value to list of dirty areas. | |
| 13 | 749 * - recompute geo for changed shape objects |
| 14 | 750 * - only if a shape object is dirty. |
| 751 * - put new and old value of area of geo to list of dirty areas. | |
| 752 * - Scan all shapes and redraw shapes overlaid with dirty areas. | |
| 13 | 753 * |
| 14 | 754 * dirty flag of coord objects is cleared after update. |
|
15
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|
755 * dirty flag of geo objects is also cleared after recomputing. |
|
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|
756 * Clean dirty flag can prevent redundant computing for geo and |
|
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|
757 * corod objects. |
| 14 | 758 * |
| 13 | 759 */ |
| 760 int rdman_redraw_changed(redraw_man_t *rdman) { | |
| 28 | 761 int r; |
| 13 | 762 int n_dirty_areas; |
| 14 | 763 area_t **dirty_areas; |
| 13 | 764 |
| 29 | 765 r = clean_rdman_dirties(rdman); |
|
16
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A simple animation using rdman_redraw_changed().
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|
766 if(r != OK) |
|
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A simple animation using rdman_redraw_changed().
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|
767 return ERR; |
| 13 | 768 |
|
15
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|
769 n_dirty_areas = rdman->n_dirty_areas; |
|
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parents:
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|
770 dirty_areas = rdman->dirty_areas; |
|
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parents:
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|
771 if(n_dirty_areas > 0) { |
|
25
29937c26bb01
Fix bug of a dark line appear when animating.
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parents:
24
diff
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|
772 clean_canvas(rdman->cr); |
| 22 | 773 draw_shapes_in_areas(rdman, n_dirty_areas, dirty_areas); |
|
24
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parents:
23
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|
774 copy_cr_2_backend(rdman, rdman->n_dirty_areas, rdman->dirty_areas); |
|
15
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parents:
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|
775 rdman->n_dirty_areas = 0; |
|
17
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Unittest for rdman_redraw_changed().
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parents:
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|
776 reset_clip(rdman); |
|
15
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|
777 } |
|
16
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A simple animation using rdman_redraw_changed().
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|
778 rdman->n_dirty_areas = 0; |
|
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A simple animation using rdman_redraw_changed().
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parents:
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|
779 |
|
15
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|
780 return OK; |
|
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X_main uses rdman_redraw_all()
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|
781 } |
|
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|
782 |
| 38 | 783 /* NOTE: Before redrawing, the canvas/surface must be cleaned. |
| 784 * NOTE: After redrawing, the content must be copied to the backend surface. | |
| 785 */ | |
| 786 | |
|
15
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X_main uses rdman_redraw_all()
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parents:
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|
787 int rdman_redraw_all(redraw_man_t *rdman) { |
|
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X_main uses rdman_redraw_all()
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|
788 geo_t *geo; |
| 29 | 789 int r; |
|
15
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parents:
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diff
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|
790 |
| 29 | 791 r = clean_rdman_dirties(rdman); |
| 792 if(r != OK) | |
| 793 return ERR; | |
|
16
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A simple animation using rdman_redraw_changed().
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parents:
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|
794 |
| 37 | 795 clean_canvas(rdman->cr); |
| 796 | |
|
15
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diff
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|
797 for(geo = STAILQ_HEAD(rdman->all_geos); |
|
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|
798 geo != NULL; |
|
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diff
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|
799 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
|
800 if(geo->flags & GEF_HIDDEN) |
|
ab028c9f0930
Ability to hidden shapes and action of visibility.
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parents:
38
diff
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|
801 continue; |
| 22 | 802 draw_shape(rdman, geo->shape); |
| 13 | 803 } |
|
24
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diff
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|
804 copy_cr_2_backend(rdman, 0, NULL); |
| 29 | 805 rdman->n_dirty_areas = 0; |
| 13 | 806 |
| 807 return OK; | |
| 12 | 808 } |
| 809 | |
| 37 | 810 int rdman_redraw_area(redraw_man_t *rdman, co_aix x, co_aix y, |
| 811 co_aix w, co_aix h) { | |
| 812 area_t area; | |
| 813 int r; | |
| 814 | |
| 815 area.x = x; | |
| 816 area.y = y; | |
| 817 area.w = w; | |
| 818 area.h = h; | |
| 819 add_dirty_area(rdman, &area); | |
| 820 | |
| 821 r = rdman_redraw_changed(rdman); | |
| 822 | |
| 823 return r; | |
| 824 } | |
| 825 | |
|
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
|
826 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
|
827 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
|
828 |
|
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
|
829 r = clean_rdman_dirties(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
|
830 |
|
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
|
831 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
changeset
|
832 } |
|
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
|
833 |
|
18
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
834 shnode_t *shnode_new(redraw_man_t *rdman, shape_t *shape) { |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
835 shnode_t *node; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
836 |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
837 node = (shnode_t *)elmpool_elm_alloc(rdman->shnode_pool); |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
838 if(node) { |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
839 node->shape = shape; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
840 node->next = NULL; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
841 } |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
842 return node; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
843 } |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
844 |
| 12 | 845 /* |
|
16
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
846 * Dirty of geo |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
847 * 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
|
848 * 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
|
849 * 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
changeset
|
850 * 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
|
851 * size, and positions. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
852 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
853 * Dirty of coord |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
854 * 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
|
855 * 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
|
856 * 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
|
857 * 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
|
858 * 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
|
859 * 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
|
860 * 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
|
861 * 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
|
862 * 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
|
863 * 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
|
864 * 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
|
865 * 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
|
866 * all it's children should also be marked and put. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
867 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
868 * 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
|
869 * 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
|
870 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
871 * 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
|
872 * 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
|
873 * 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
|
874 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
875 * 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
|
876 * 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
|
877 */ |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
878 |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
879 /* |
| 12 | 880 * When redraw an area, the affected elements may also extend to |
| 881 * outside of the area. Since the order of drawing will change | |
| 882 * the result, it will infect more and more elements to keep | |
| 883 * drawing order althrough they are overlaid directly with | |
| 884 * specified area. | |
| 885 * | |
| 886 * To fix the problem, we don't extend the set of redrawing to | |
| 887 * elements they are not overliad directly. The redrawing is | |
| 888 * performed on a temporary surface, clipped to fit the area, and | |
| 889 * update only specified area on the destinate surface. | |
| 890 */ | |
| 891 | |
| 892 /* | |
| 893 * To accelerate speed of transformation, when a matrix changed, | |
| 894 * transformation should be aggregated and computed in a loop. | |
| 895 * It can get intereset of higher hit rate of cache. | |
| 896 * - shapes prvoide list of positions needed to be transformed. | |
| 897 * - redraw_man transforms positions from shapes. | |
| 898 * - shapes drawing with result of transforms. | |
| 899 * - shapes should be called to give them a chance to update geometries. | |
| 900 */ | |
| 901 | |
| 13 | 902 /* |
| 903 * functions: | |
| 904 * - redraw all | |
| 905 * - redraw changed | |
| 906 */ | |
| 907 | |
|
73
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
908 /* Implment factory and strategy functions for observers and subjects. |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
909 */ |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
910 static subject_t *ob_subject_alloc(ob_factory_t *factory) { |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
911 redraw_man_t *rdman; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
912 subject_t *subject; |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
913 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
914 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
915 subject = elmpool_elm_alloc(rdman->subject_pool); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
916 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
917 return subject; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
918 } |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
919 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
920 static void ob_subject_free(ob_factory_t *factory, subject_t *subject) { |
|
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Observer for mouse events
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parents:
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diff
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|
921 redraw_man_t *rdman; |
|
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Observer for mouse events
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parents:
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diff
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|
922 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
923 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
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diff
changeset
|
924 elmpool_elm_free(rdman->subject_pool, subject); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
925 } |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
926 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
927 static observer_t *ob_observer_alloc(ob_factory_t *factory) { |
|
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Observer for mouse events
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parents:
58
diff
changeset
|
928 redraw_man_t *rdman; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
929 observer_t *observer; |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
930 |
|
9ab15ebc9061
Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents:
58
diff
changeset
|
931 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
932 observer = elmpool_elm_alloc(rdman->observer_pool); |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
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|
933 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
934 return observer; |
|
9ab15ebc9061
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parents:
58
diff
changeset
|
935 } |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
936 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
937 static void ob_observer_free(ob_factory_t *factory, observer_t *observer) { |
|
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parents:
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diff
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|
938 redraw_man_t *rdman; |
|
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Observer for mouse events
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parents:
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diff
changeset
|
939 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
940 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
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Observer for mouse events
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parents:
58
diff
changeset
|
941 elmpool_elm_free(rdman->observer_pool, observer); |
|
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parents:
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diff
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|
942 } |
|
9ab15ebc9061
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parents:
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diff
changeset
|
943 |
|
9ab15ebc9061
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parents:
58
diff
changeset
|
944 static subject_t *ob_get_parent_subject(ob_factory_t *factory, |
|
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parents:
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diff
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|
945 subject_t *cur_subject) { |
|
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parents:
58
diff
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|
946 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
|
947 coord_t *coord, *parent_coord; |
|
73
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parents:
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diff
changeset
|
948 geo_t *geo; |
|
9ab15ebc9061
Observer for mouse events
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parents:
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diff
changeset
|
949 subject_t *parent; |
|
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Observer for mouse events
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parents:
58
diff
changeset
|
950 |
|
9ab15ebc9061
Observer for mouse events
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parents:
58
diff
changeset
|
951 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
|
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parents:
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diff
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|
952 switch(cur_subject->obj_type) { |
|
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diff
changeset
|
953 case OBJT_GEO: |
|
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diff
changeset
|
954 geo = (geo_t *)cur_subject->obj; |
|
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
|
955 parent_coord = geo->shape->coord; |
|
5bcb329a5157
Fix bug of core dump caused by forget to check if parent is NULL, root.
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parents:
75
diff
changeset
|
956 parent = parent_coord->mouse_event; |
|
73
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diff
changeset
|
957 break; |
|
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diff
changeset
|
958 case OBJT_COORD: |
|
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parents:
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diff
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|
959 coord = (coord_t *)cur_subject->obj; |
|
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
|
960 parent_coord = coord->parent; |
|
5bcb329a5157
Fix bug of core dump caused by forget to check if parent is NULL, root.
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961 if(parent_coord == NULL) { |
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962 parent = NULL; |
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963 break; |
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964 } |
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965 parent = parent_coord->mouse_event; |
|
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966 break; |
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967 default: |
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968 parent = NULL; |
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969 break; |
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970 } |
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971 |
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972 return parent; |
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973 } |
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974 |
| 12 | 975 #ifdef UNITTEST |
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976 /* Test cases */ |
| 12 | 977 |
| 978 #include <CUnit/Basic.h> | |
| 19 | 979 #include "paint.h" |
| 12 | 980 |
| 981 struct _sh_dummy { | |
| 982 shape_t shape; | |
| 983 co_aix x, y; | |
| 984 co_aix w, h; | |
|
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985 int draw_cnt; |
| 12 | 986 }; |
| 987 | |
| 988 shape_t *sh_dummy_new(co_aix x, co_aix y, co_aix w, co_aix h) { | |
| 989 sh_dummy_t *dummy; | |
| 990 | |
| 991 dummy = (sh_dummy_t *)malloc(sizeof(sh_dummy_t)); | |
| 992 if(dummy == NULL) | |
| 993 return NULL; | |
| 994 | |
|
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995 memset(dummy, 0, sizeof(sh_dummy_t)); |
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996 |
| 12 | 997 dummy->x = x; |
| 998 dummy->y = y; | |
| 999 dummy->w = w; | |
| 1000 dummy->h = h; | |
|
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1001 dummy->draw_cnt = 0; |
| 12 | 1002 |
| 1003 return (shape_t *)dummy; | |
| 1004 } | |
| 1005 | |
| 1006 void sh_dummy_free(shape_t *sh) { | |
| 1007 free(sh); | |
| 1008 } | |
| 1009 | |
| 1010 void sh_dummy_transform(shape_t *shape) { | |
| 1011 sh_dummy_t *dummy = (sh_dummy_t *)shape; | |
| 1012 co_aix poses[2][2]; | |
| 1013 co_aix x1, y1, x2, y2; | |
| 1014 | |
| 1015 if(shape->geo && shape->coord) { | |
| 1016 x1 = dummy->x; | |
| 1017 y1 = dummy->y; | |
| 1018 x2 = x1 + dummy->w; | |
| 1019 y2 = y1 + dummy->h; | |
| 1020 | |
| 1021 coord_trans_pos(shape->coord, &x1, &y1); | |
| 1022 coord_trans_pos(shape->coord, &x2, &y2); | |
| 1023 poses[0][0] = x1; | |
| 1024 poses[0][1] = y1; | |
| 1025 poses[1][0] = x2; | |
| 1026 poses[1][1] = y2; | |
| 1027 | |
|
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1028 if(shape->geo) |
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1029 geo_from_positions(shape->geo, 2, poses); |
| 12 | 1030 } |
| 1031 } | |
| 1032 | |
|
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1033 void sh_dummy_fill(shape_t *shape, cairo_t *cr) { |
|
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1034 sh_dummy_t *dummy; |
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1035 |
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1036 dummy = (sh_dummy_t *)shape; |
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1037 dummy->draw_cnt++; |
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1038 } |
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1039 |
| 19 | 1040 static void dummy_paint_prepare(paint_t *paint, cairo_t *cr) { |
| 1041 } | |
| 1042 | |
| 1043 static void dummy_paint_free(paint_t *paint) { | |
| 1044 if(paint) | |
| 1045 free(paint); | |
| 1046 } | |
| 1047 | |
| 1048 paint_t *dummy_paint_new(redraw_man_t *rdman) { | |
| 1049 paint_t *paint; | |
| 1050 | |
| 1051 paint = (paint_t *)malloc(sizeof(paint_t)); | |
| 1052 if(paint == NULL) | |
| 1053 return NULL; | |
| 1054 | |
| 1055 paint_init(paint, dummy_paint_prepare, dummy_paint_free); | |
| 1056 | |
| 1057 return paint; | |
| 1058 } | |
| 1059 | |
| 12 | 1060 void test_rdman_find_overlaid_shapes(void) { |
| 1061 redraw_man_t rdman; | |
| 1062 geo_t geo; | |
| 1063 coord_t *coords[3]; | |
| 1064 shape_t *shapes[5]; | |
| 1065 geo_t **overlays; | |
| 13 | 1066 co_aix pos[2][2]; |
| 12 | 1067 int n; |
| 1068 int i; | |
| 1069 | |
|
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1070 redraw_man_init(&rdman, NULL, NULL); |
| 12 | 1071 coords[0] = rdman.root_coord; |
| 1072 for(i = 1; i < 3; i++) { | |
| 1073 coords[i] = rdman_coord_new(&rdman, rdman.root_coord); | |
| 1074 } | |
| 1075 for(i = 0; i < 5; i++) { | |
| 1076 shapes[i] = sh_dummy_new(10 + i * 30, 10 + i * 20, 25, 15); | |
| 1077 CU_ASSERT(shapes[i] != NULL); | |
| 1078 } | |
| 1079 for(i = 0; i < 3; i++) | |
| 1080 rdman_add_shape(&rdman, shapes[i], coords[1]); | |
| 1081 for(i = 3; i < 5; i++) | |
| 1082 rdman_add_shape(&rdman, shapes[i], coords[2]); | |
| 1083 | |
| 1084 coords[1]->matrix[0] = 2; | |
| 1085 coords[0]->matrix[4] = 2; | |
| 1086 | |
| 1087 update_aggr_matrix(coords[0]); | |
| 1088 for(i = 0; i < 5; i++) | |
| 1089 sh_dummy_transform(shapes[i]); | |
| 1090 | |
| 13 | 1091 pos[0][0] = 100; |
| 1092 pos[0][1] = 120; | |
| 1093 pos[1][0] = 100 + 140; | |
| 1094 pos[1][1] = 120 + 40; | |
|
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1095 geo_init(&geo); |
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1096 geo_from_positions(&geo, 2, pos); |
| 12 | 1097 |
| 1098 n = rdman_find_overlaid_shapes(&rdman, &geo, &overlays); | |
| 1099 CU_ASSERT(n == 2); | |
| 1100 CU_ASSERT(overlays != NULL); | |
| 1101 CU_ASSERT(overlays[0] == shapes[2]->geo); | |
| 1102 CU_ASSERT(overlays[1] == shapes[3]->geo); | |
| 1103 | |
| 1104 free(overlays); | |
| 1105 for(i = 0; i < 5; i++) | |
| 1106 sh_dummy_free(shapes[i]); | |
| 1107 | |
| 1108 redraw_man_destroy(&rdman); | |
| 1109 } | |
| 1110 | |
|
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1111 void test_rdman_redraw_changed(void) { |
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1112 coord_t *coords[3]; |
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1113 shape_t *shapes[3]; |
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1114 sh_dummy_t **dummys; |
| 19 | 1115 paint_t *paint; |
|
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1116 redraw_man_t *rdman; |
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1117 redraw_man_t _rdman; |
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1118 int i; |
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1119 |
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1120 dummys = (sh_dummy_t **)shapes; |
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1121 |
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1122 rdman = &_rdman; |
|
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1123 redraw_man_init(rdman, NULL, NULL); |
| 19 | 1124 paint = dummy_paint_new(rdman); |
|
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1125 for(i = 0; i < 3; i++) { |
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1126 shapes[i] = sh_dummy_new(0, 0, 50, 50); |
| 19 | 1127 rdman_paint_fill(rdman, paint, shapes[i]); |
|
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1128 coords[i] = rdman_coord_new(rdman, rdman->root_coord); |
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1129 coords[i]->matrix[2] = 10 + i * 100; |
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1130 coords[i]->matrix[5] = 10 + i * 100; |
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1131 rdman_coord_changed(rdman, coords[i]); |
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1132 rdman_add_shape(rdman, shapes[i], coords[i]); |
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1133 } |
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1134 rdman_redraw_all(rdman); |
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1135 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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1136 CU_ASSERT(dummys[1]->draw_cnt == 1); |
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1137 CU_ASSERT(dummys[2]->draw_cnt == 1); |
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1138 |
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1139 coords[2]->matrix[2] = 100; |
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1140 coords[2]->matrix[5] = 100; |
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1141 rdman_coord_changed(rdman, coords[2]); |
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1142 rdman_redraw_changed(rdman); |
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1143 |
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1144 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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1145 CU_ASSERT(dummys[1]->draw_cnt == 2); |
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1146 CU_ASSERT(dummys[2]->draw_cnt == 2); |
| 19 | 1147 |
| 1148 paint->free(paint); | |
| 1149 redraw_man_destroy(rdman); | |
|
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1150 } |
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1151 |
| 12 | 1152 CU_pSuite get_redraw_man_suite(void) { |
| 1153 CU_pSuite suite; | |
| 1154 | |
| 1155 suite = CU_add_suite("Suite_redraw_man", NULL, NULL); | |
| 1156 CU_ADD_TEST(suite, test_rdman_find_overlaid_shapes); | |
|
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1157 CU_ADD_TEST(suite, test_rdman_redraw_changed); |
| 12 | 1158 |
| 1159 return suite; | |
| 1160 } | |
| 1161 | |
| 1162 #endif /* UNITTEST */ |