Mercurial > MadButterfly
annotate src/redraw_man.c @ 65:35c2b7ba140b
Use file name of generated M4 script as name of header
| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Wed, 13 Aug 2008 02:11:55 +0800 |
| parents | 1ca417f741f1 |
| children | 9ab15ebc9061 |
| rev | line source |
|---|---|
| 12 | 1 #include <stdio.h> |
| 2 #include <stdlib.h> | |
| 3 #include <string.h> | |
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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" | |
| 9 | |
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10 /* NOTE: bounding box should also consider width of stroke. |
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11 */ |
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12 |
| 12 | 13 #define OK 0 |
| 14 #define ERR -1 | |
| 15 | |
| 13 | 16 #define OFFSET(type, field) ((void *)&((type *)NULL)->field - (void *)NULL) |
| 17 #define SWAP(a, b, t) do { t c; c = a; a = b; b = c; } while(0) | |
| 18 | |
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19 #ifdef UNITTEST |
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20 typedef struct _sh_dummy sh_dummy_t; |
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21 |
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22 extern void sh_dummy_transform(shape_t *shape); |
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23 extern void sh_dummy_fill(shape_t *, cairo_t *); |
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24 #endif /* UNITTEST */ |
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25 |
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26 /*! \brief Sort a list of element by a unsigned integer. |
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27 * |
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28 * The result is in ascend order. The unsigned integers is |
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29 * at offset specified by 'off' from start address of elemnts. |
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30 */ |
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31 static void _insert_sort(void **elms, int num, int off) { |
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32 int i, j; |
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33 unsigned int val; |
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34 |
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35 for(i = 1; i < num; i++) { |
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36 val = *(unsigned int *)(elms[i] + off); |
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37 for(j = i; j > 0; j--) { |
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38 if(*(unsigned int *)(elms[j - 1] + off) <= val) |
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39 break; |
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40 elms[j] = elms[j - 1]; |
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41 } |
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42 elms[j] = elms[i]; |
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43 } |
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44 } |
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45 |
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46 static int extend_memblk(void **buf, int o_size, int n_size) { |
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47 void *new_buf; |
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48 |
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49 new_buf = realloc(*buf, n_size); |
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50 if(new_buf == NULL) |
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51 return ERR; |
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52 |
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53 *buf = new_buf; |
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54 |
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55 return OK; |
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56 } |
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57 |
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58 static int add_dirty_geo(redraw_man_t *rdman, geo_t *geo) { |
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59 int max_dirty_geos; |
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60 int r; |
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61 |
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62 if(rdman->n_dirty_geos >= rdman->max_dirty_geos) { |
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63 max_dirty_geos = rdman->n_geos; |
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64 r = extend_memblk((void **)&rdman->dirty_geos, |
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65 sizeof(geo_t *) * rdman->n_dirty_geos, |
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66 sizeof(geo_t *) * max_dirty_geos); |
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67 if(r != OK) |
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68 return ERR; |
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69 rdman->max_dirty_geos = max_dirty_geos; |
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70 } |
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71 |
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72 rdman->dirty_geos[rdman->n_dirty_geos++] = geo; |
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73 return OK; |
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74 } |
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75 |
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76 static int add_dirty_area(redraw_man_t *rdman, area_t *area) { |
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77 int max_dirty_areas; |
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78 int r; |
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79 |
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80 if(rdman->n_dirty_areas >= rdman->max_dirty_areas) { |
| 37 | 81 /* every geo object and coord object can contribute 2 areas. |
| 82 * rdman_draw_area() may also contribute 1 area. | |
| 83 */ | |
| 84 max_dirty_areas = (rdman->n_geos + rdman->n_coords) * 2 + 1; | |
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85 r = extend_memblk((void **)&rdman->dirty_areas, |
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86 sizeof(area_t *) * rdman->n_dirty_areas, |
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87 sizeof(area_t *) * max_dirty_areas); |
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88 if(r != OK) |
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89 return ERR; |
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90 rdman->max_dirty_areas = max_dirty_areas; |
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91 } |
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92 |
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93 rdman->dirty_areas[rdman->n_dirty_areas++] = area; |
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94 return OK; |
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95 } |
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96 |
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97 static void area_to_positions(area_t *area, co_aix (*poses)[2]) { |
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98 poses[0][0] = area->x; |
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99 poses[0][1] = area->y; |
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100 poses[1][0] = area->x + area->w; |
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101 poses[1][1] = area->y + area->h;; |
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102 } |
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103 |
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104 int redraw_man_init(redraw_man_t *rdman, cairo_t *cr, cairo_t *backend) { |
| 12 | 105 extern void redraw_man_destroy(redraw_man_t *rdman); |
| 106 | |
| 107 memset(rdman, 0, sizeof(redraw_man_t)); | |
| 108 | |
| 109 rdman->geo_pool = elmpool_new(sizeof(geo_t), 128); | |
| 110 if(rdman->geo_pool == NULL) | |
| 111 return ERR; | |
| 112 | |
| 113 rdman->coord_pool = elmpool_new(sizeof(coord_t), 16); | |
| 114 if(rdman->coord_pool == NULL) { | |
| 115 elmpool_free(rdman->geo_pool); | |
| 116 return ERR; | |
| 117 } | |
| 118 | |
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119 rdman->shnode_pool = elmpool_new(sizeof(shnode_t), 16); |
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120 if(rdman->shnode_pool == NULL) { |
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121 elmpool_free(rdman->geo_pool); |
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122 elmpool_free(rdman->coord_pool); |
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123 return ERR; |
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124 } |
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125 |
| 12 | 126 rdman->root_coord = elmpool_elm_alloc(rdman->coord_pool); |
| 127 if(rdman->root_coord == NULL) | |
| 128 redraw_man_destroy(rdman); | |
| 13 | 129 rdman->n_coords = 1; |
| 12 | 130 coord_init(rdman->root_coord, NULL); |
| 131 | |
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132 rdman->cr = cr; |
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133 rdman->backend = backend; |
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134 |
| 12 | 135 return OK; |
| 136 } | |
| 137 | |
| 138 void redraw_man_destroy(redraw_man_t *rdman) { | |
| 139 elmpool_free(rdman->coord_pool); | |
| 140 elmpool_free(rdman->geo_pool); | |
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141 elmpool_free(rdman->shnode_pool); |
| 13 | 142 if(rdman->dirty_coords) |
| 143 free(rdman->dirty_coords); | |
| 14 | 144 if(rdman->dirty_geos) |
| 145 free(rdman->dirty_geos); | |
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146 if(rdman->gen_geos) |
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147 free(rdman->gen_geos); |
| 12 | 148 } |
| 149 | |
| 150 | |
| 151 #define ASSERT(x) | |
| 152 /* | |
| 153 * Change transformation matrix | |
| 154 * - update aggregated transformation matrix | |
| 155 * - of coord_t object been changed. | |
| 156 * - of children coord_t objects. | |
| 157 * - redraw members of coord_t objects. | |
| 158 * - redraw shape objects they are overlaid with members. | |
| 159 * - find out overlaid shape objects. | |
| 160 * - geo_t of a coord_t object | |
| 161 * - can make finding more efficiency. | |
| 162 * - fill overlay geo_t objects of members. | |
| 163 * | |
| 164 * Change a shape object | |
| 165 * - redraw changed object. | |
| 166 * - redraw shape objects they are overlaid with changed object. | |
| 167 * - find out overlaid shape objects. | |
| 168 * | |
| 169 * That coord and geo of shape objects are setted by user code | |
| 170 * give user code a chance to collect coord and geo objects together | |
| 171 * and gain interest of higher cache hit rate. | |
| 172 */ | |
| 173 | |
| 174 /*! \brief Find out all affected shape objects. | |
| 175 * | |
| 176 * Find out all shape objects that are overalid with geo_t of | |
| 177 * a geometry changed object. | |
| 178 * | |
| 179 * Linear scan geo_t objects of all shape objects in all_shapes | |
| 180 * list of a redraw_man_t object. | |
| 181 */ | |
| 182 int rdman_find_overlaid_shapes(redraw_man_t *rdman, geo_t *geo, | |
| 183 geo_t ***overlays) { | |
| 184 int n_geos; | |
| 185 geo_t **geos; | |
| 186 geo_t *geo_cur; | |
| 187 int n_overlays; | |
| 188 geo_t **_overlays; | |
| 189 int i; | |
| 190 | |
| 191 n_geos = rdman->n_geos; | |
| 192 | |
| 193 geos = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 194 if(geos == NULL) | |
| 195 return -1; | |
| 196 | |
| 197 _overlays = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 198 if(geos == NULL) { | |
| 199 free(geos); | |
| 200 return -1; | |
| 201 } | |
| 202 | |
| 203 geo_cur = STAILQ_HEAD(rdman->all_geos); | |
| 204 for(i = 0; i < n_geos; i++) { | |
| 205 geos[i] = geo_cur; | |
| 206 geo_cur = STAILQ_NEXT(geo_t, next, geo_cur); | |
| 207 } | |
| 208 geo_mark_overlay(geo, n_geos, geos, &n_overlays, _overlays); | |
| 209 | |
| 210 free(geos); | |
| 211 *overlays = _overlays; | |
| 212 | |
| 213 return n_overlays; | |
| 214 } | |
| 215 | |
| 216 int rdman_add_shape(redraw_man_t *rdman, shape_t *shape, coord_t *coord) { | |
| 217 geo_t *geo; | |
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218 #ifdef GEO_ORDER |
| 13 | 219 geo_t *visit; |
| 220 unsigned int next_order; | |
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221 #endif |
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222 int r; |
| 12 | 223 |
| 224 geo = elmpool_elm_alloc(rdman->geo_pool); | |
| 225 if(geo == NULL) | |
| 226 return ERR; | |
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227 |
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228 geo_init(geo); |
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229 |
| 12 | 230 sh_attach_geo(shape, geo); |
| 231 STAILQ_INS_TAIL(rdman->all_geos, geo_t, next, geo); | |
| 232 rdman->n_geos++; | |
| 13 | 233 |
| 58 | 234 /*! \todo remove order number. */ |
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235 #ifdef GEO_ORDER |
| 13 | 236 geo->order = ++rdman->next_geo_order; |
| 237 if(geo->order == 0) { | |
| 238 next_order = 0; | |
| 239 for(visit = STAILQ_HEAD(rdman->all_geos); | |
| 240 visit != NULL; | |
| 241 visit = STAILQ_NEXT(geo_t, next, visit)) | |
| 242 visit->order = ++next_order; | |
| 243 rdman->next_geo_order = next_order; | |
| 244 } | |
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245 #endif |
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246 |
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247 /* New one should be dirty to recompute it when drawing. */ |
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248 geo->flags |= GEF_DIRTY; |
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249 r = add_dirty_geo(rdman, geo); |
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250 if(r != OK) |
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251 return ERR; |
| 13 | 252 |
| 12 | 253 sh_attach_coord(shape, coord); |
| 254 | |
| 255 return OK; | |
| 256 } | |
| 257 | |
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258 /*! \brief Remove a shape object from redraw manager. |
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259 * |
| 58 | 260 * \todo redraw shape objects that overlaid with removed one. |
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261 */ |
| 12 | 262 int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape) { |
| 263 STAILQ_REMOVE(rdman->all_geos, geo_t, next, shape->geo); | |
| 264 elmpool_elm_free(rdman->geo_pool, shape->geo); | |
| 265 sh_detach_geo(shape); | |
| 266 rdman->n_geos--; | |
| 267 sh_detach_coord(shape); | |
| 268 return OK; | |
| 269 } | |
| 270 | |
| 271 coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent) { | |
| 13 | 272 coord_t *coord, *root_coord; |
| 273 coord_t *visit; | |
| 12 | 274 |
| 275 coord = elmpool_elm_alloc(rdman->coord_pool); | |
| 276 if(coord == NULL) | |
| 277 return NULL; | |
| 278 | |
| 279 coord_init(coord, parent); | |
| 13 | 280 rdman->n_coords++; |
| 281 | |
| 282 coord->order = ++rdman->next_coord_order; | |
| 283 if(coord->order == 0) { | |
| 284 rdman->next_coord_order = 0; | |
| 285 root_coord = visit = rdman->root_coord; | |
| 286 /* skip root coord. */ | |
| 287 visit = preorder_coord_subtree(root_coord, visit); | |
| 288 while(visit) { | |
| 289 visit->order = ++rdman->next_coord_order; | |
| 290 visit = preorder_coord_subtree(root_coord, visit); | |
| 291 } | |
| 292 } | |
| 12 | 293 |
| 294 return coord; | |
| 295 } | |
| 296 | |
| 297 /*! \brief Free a coord of a redraw_man_t object. | |
| 298 * | |
| 299 * \param coord is a coord_t without children and members. | |
| 300 * \return 0 for successful, -1 for error. | |
| 301 */ | |
| 302 int rdman_coord_free(redraw_man_t *rdman, coord_t *coord) { | |
| 303 coord_t *parent; | |
| 304 | |
| 305 parent = coord->parent; | |
| 306 if(parent == NULL) | |
| 307 return ERR; | |
| 308 | |
| 309 if(STAILQ_HEAD(coord->members) != NULL) | |
| 310 return ERR; | |
| 311 | |
| 312 if(STAILQ_HEAD(coord->children) != NULL) | |
| 313 return ERR; | |
| 314 | |
| 315 STAILQ_REMOVE(parent->children, coord_t, sibling, coord); | |
| 316 elmpool_elm_free(rdman->coord_pool, coord); | |
| 13 | 317 rdman->n_coords--; |
| 318 | |
| 319 return OK; | |
| 320 } | |
| 321 | |
| 322 /*! \brief Mark a coord is changed. | |
| 323 * | |
| 324 * A changed coord_t object is marked as dirty and put | |
| 325 * into dirty_coords list. | |
| 326 */ | |
| 327 int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord) { | |
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328 coord_t *child; |
| 13 | 329 int max_dirty_coords; |
| 330 int r; | |
| 331 | |
| 332 if(coord->flags & COF_DIRTY) | |
| 333 return OK; | |
| 334 | |
| 335 if(rdman->n_dirty_coords >= rdman->max_dirty_coords) { | |
| 336 /* Max of dirty_coords is not big enough. */ | |
| 337 max_dirty_coords = rdman->max_dirty_coords + 16; | |
| 338 | |
| 339 r = extend_memblk((void **)&rdman->dirty_coords, | |
| 340 sizeof(coord_t *) * rdman->n_dirty_coords, | |
| 341 sizeof(coord_t *) * max_dirty_coords); | |
| 342 rdman->max_dirty_coords = max_dirty_coords; | |
| 343 } | |
| 344 | |
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345 /* Make the coord and child coords dirty. */ |
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346 for(child = coord; |
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347 child != NULL; |
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348 child = preorder_coord_subtree(coord, child)) { |
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349 rdman->dirty_coords[rdman->n_dirty_coords++] = coord; |
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350 coord->flags |= COF_DIRTY; |
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351 } |
| 13 | 352 |
| 353 return OK; | |
| 354 } | |
| 355 | |
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356 static int _rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
| 13 | 357 geo_t *geo; |
| 358 int r; | |
| 359 | |
| 360 geo = shape->geo; | |
| 361 | |
| 362 if(geo->flags & GEF_DIRTY) | |
| 363 return OK; | |
| 364 | |
| 365 r = add_dirty_geo(rdman, geo); | |
| 366 if(r == ERR) | |
| 367 return ERR; | |
| 368 geo->flags |= GEF_DIRTY; | |
| 12 | 369 |
| 370 return OK; | |
| 371 } | |
| 372 | |
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373 /*! \brief Mark a shape is changed. |
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374 * |
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375 * The geo_t object of a changed shape is mark as dirty and |
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376 * put into dirty_geos list. |
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377 */ |
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378 int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
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379 return _rdman_shape_changed(rdman, shape); |
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380 } |
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381 |
| 29 | 382 int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint) { |
| 383 shnode_t *node; | |
| 384 int r; | |
| 385 | |
| 386 for(node = STAILQ_HEAD(paint->members); | |
| 387 node != NULL; | |
| 388 node = STAILQ_NEXT(shnode_t, next, node)) { | |
| 389 r = _rdman_shape_changed(rdman, node->shape); | |
| 390 if(r != OK) | |
| 391 return ERR; | |
| 392 } | |
| 393 return OK; | |
| 394 } | |
| 395 | |
| 28 | 396 /* Clean dirties */ |
| 397 | |
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398 static int is_coord_subtree_hidden(coord_t *coord) { |
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399 while(coord) { |
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400 if(coord->flags & COF_HIDDEN) |
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401 return 1; |
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402 coord = coord->parent; |
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403 } |
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404 return 0; |
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405 } |
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406 |
| 28 | 407 static void clean_shape(shape_t *shape) { |
| 408 switch(shape->sh_type) { | |
| 409 case SHT_PATH: | |
| 410 sh_path_transform(shape); | |
| 411 break; | |
| 412 case SHT_TEXT: | |
| 413 sh_text_transform(shape); | |
| 414 break; | |
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415 case SHT_RECT: |
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416 sh_rect_transform(shape); |
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417 break; |
| 28 | 418 #ifdef UNITTEST |
| 419 default: | |
| 420 sh_dummy_transform(shape); | |
| 421 break; | |
| 422 #endif /* UNITTEST */ | |
| 423 } | |
| 424 shape->geo->flags &= ~GEF_DIRTY; | |
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425 |
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426 if(is_coord_subtree_hidden(shape->coord)) |
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427 shape->geo->flags |= GEF_HIDDEN; |
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428 else |
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429 shape->geo->flags &= ~GEF_HIDDEN; |
| 28 | 430 } |
| 431 | |
| 432 static int clean_coord(coord_t *coord) { | |
| 433 shape_t *shape; | |
| 434 geo_t *geo; | |
| 435 co_aix (*poses)[2]; | |
| 436 int cnt, pos_cnt; | |
| 437 | |
| 438 compute_aggr_of_coord(coord); | |
| 439 | |
| 440 /* Clean member shapes. */ | |
| 441 cnt = 0; | |
| 442 for(shape = STAILQ_HEAD(coord->members); | |
| 443 shape != NULL; | |
| 444 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 445 geo = shape->geo; | |
| 446 SWAP(geo->cur_area, geo->last_area, area_t *); | |
| 447 clean_shape(shape); | |
| 448 cnt++; | |
| 449 } | |
| 450 | |
| 451 /* Compute area of the coord. */ | |
| 452 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * 2 * cnt); | |
| 453 if(poses == NULL) | |
| 454 return ERR; | |
| 455 | |
| 456 pos_cnt = 0; | |
| 457 for(shape = STAILQ_HEAD(coord->members); | |
| 458 shape != NULL; | |
| 459 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 460 geo = shape->geo; | |
| 461 | |
| 462 area_to_positions(geo->cur_area, poses + pos_cnt); | |
| 463 pos_cnt += 2; | |
| 464 } | |
| 465 | |
| 466 SWAP(coord->cur_area, coord->last_area, area_t *); | |
| 467 area_init(coord->cur_area, pos_cnt, poses); | |
| 468 free(poses); | |
| 469 | |
| 470 coord->flags &= ~COF_DIRTY; | |
| 471 | |
| 472 return OK; | |
| 473 } | |
| 474 | |
| 475 static int clean_rdman_coords(redraw_man_t *rdman) { | |
| 476 coord_t *coord; | |
| 477 coord_t **dirty_coords; | |
| 478 int n_dirty_coords; | |
| 479 int i, r; | |
| 480 | |
| 481 n_dirty_coords = rdman->n_dirty_coords; | |
| 482 if(n_dirty_coords > 0) { | |
| 483 dirty_coords = rdman->dirty_coords; | |
| 484 _insert_sort((void **)dirty_coords, n_dirty_coords, | |
| 485 OFFSET(coord_t, order)); | |
| 486 for(i = 0; i < n_dirty_coords; i++) { | |
| 487 coord = dirty_coords[i]; | |
| 488 if(!(coord->flags & COF_DIRTY)) | |
| 489 continue; | |
| 490 r = clean_coord(coord); | |
| 491 if(r != OK) | |
| 492 return ERR; | |
| 493 /* These two steps can be avoided for drawing all. */ | |
| 494 add_dirty_area(rdman, &coord->areas[0]); | |
| 495 add_dirty_area(rdman, &coord->areas[1]); | |
| 496 } | |
| 497 rdman->n_dirty_coords = 0; | |
| 498 } | |
| 499 return OK; | |
| 500 } | |
| 501 | |
| 502 static int clean_rdman_geos(redraw_man_t *rdman) { | |
| 503 int i; | |
| 504 int n_dirty_geos; | |
| 505 geo_t **dirty_geos; | |
| 506 geo_t *visit_geo; | |
| 507 | |
| 508 n_dirty_geos = rdman->n_dirty_geos; | |
| 509 if(n_dirty_geos > 0) { | |
| 510 dirty_geos = rdman->dirty_geos; | |
| 511 for(i = 0; i < n_dirty_geos; i++) { | |
| 512 visit_geo = dirty_geos[i]; | |
| 513 if(!(visit_geo->flags & GEF_DIRTY)) | |
| 514 continue; | |
| 515 | |
| 516 SWAP(visit_geo->cur_area, visit_geo->last_area, area_t *); | |
| 517 clean_shape(visit_geo->shape); | |
| 518 add_dirty_area(rdman, visit_geo->cur_area); | |
| 519 add_dirty_area(rdman, visit_geo->last_area); | |
| 520 } | |
| 521 rdman->n_dirty_geos = 0; | |
| 522 } | |
| 523 | |
| 524 return OK; | |
| 525 } | |
| 526 | |
| 29 | 527 static int clean_rdman_dirties(redraw_man_t *rdman) { |
| 528 int r; | |
| 529 | |
| 530 r = clean_rdman_coords(rdman); | |
| 531 if(r != OK) | |
| 532 return ERR; | |
| 533 | |
| 534 r = clean_rdman_geos(rdman); | |
| 535 if(r != OK) | |
| 536 return ERR; | |
| 537 | |
| 538 return OK; | |
| 539 } | |
| 540 | |
| 541 | |
|
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542 /* Drawing and Redrawing |
|
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543 * ============================================================ |
|
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544 */ |
|
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545 |
|
26
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546 #ifndef UNITTEST |
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547 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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548 cairo_set_line_width(cr, shape->stroke_width); |
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549 } |
|
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550 |
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551 static void fill_path_preserve(redraw_man_t *rdman) { |
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552 cairo_fill_preserve(rdman->cr); |
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553 } |
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554 |
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555 static void fill_path(redraw_man_t *rdman) { |
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556 cairo_fill(rdman->cr); |
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557 } |
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558 |
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559 static void stroke_path(redraw_man_t *rdman) { |
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560 cairo_stroke(rdman->cr); |
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561 } |
|
26
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562 #else |
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563 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
|
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564 } |
|
33
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565 |
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566 static void fill_path_preserve(redraw_man_t *rdman) { |
|
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567 } |
|
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|
568 |
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|
569 static void fill_path(redraw_man_t *rdman) { |
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570 } |
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571 |
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572 static void stroke_path(redraw_man_t *rdman) { |
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573 } |
|
26
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574 #endif |
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575 |
| 22 | 576 static void draw_shape(redraw_man_t *rdman, shape_t *shape) { |
| 577 paint_t *fill, *stroke; | |
|
18
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|
578 |
|
33
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579 if(shape->fill || shape->stroke) { |
| 19 | 580 switch(shape->sh_type) { |
| 581 case SHT_PATH: | |
|
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|
582 sh_path_draw(shape, rdman->cr); |
| 19 | 583 break; |
| 27 | 584 case SHT_TEXT: |
|
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Fix bug of demo and remove *_fill() and *_stroke().
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585 sh_text_draw(shape, rdman->cr); |
| 27 | 586 break; |
|
35
581a03196093
Support rectangle tag of SVG.
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587 case SHT_RECT: |
|
581a03196093
Support rectangle tag of SVG.
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588 sh_rect_draw(shape, rdman->cr); |
|
581a03196093
Support rectangle tag of SVG.
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589 break; |
|
17
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Unittest for rdman_redraw_changed().
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590 #ifdef UNITTEST |
| 19 | 591 default: |
|
20
74d3d5dc9aaa
rename XXX_draw() to XXX_fill()
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|
592 sh_dummy_fill(shape, rdman->cr); |
| 19 | 593 break; |
|
17
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Unittest for rdman_redraw_changed().
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594 #endif /* UNITTEST */ |
| 19 | 595 } |
|
33
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|
596 |
|
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597 fill = shape->fill; |
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598 if(shape->fill) { |
|
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|
599 fill->prepare(fill, rdman->cr); |
|
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|
600 if(shape->stroke) |
|
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601 fill_path_preserve(rdman); |
|
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|
602 else |
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|
603 fill_path(rdman); |
|
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|
604 } |
|
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|
605 |
|
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606 stroke = shape->stroke; |
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607 if(stroke) { |
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608 stroke->prepare(stroke, rdman->cr); |
|
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|
609 set_shape_stroke_param(shape, rdman->cr); |
|
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|
610 stroke_path(rdman); |
| 22 | 611 } |
| 612 } | |
| 13 | 613 } |
| 614 | |
|
17
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|
615 #ifndef UNITTEST |
|
25
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Fix bug of a dark line appear when animating.
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|
616 static void clean_canvas(cairo_t *cr) { |
| 58 | 617 /*! \todo clean to background color. */ |
|
16
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|
618 cairo_set_source_rgb(cr, 0, 0, 0); |
|
24
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|
619 cairo_paint(cr); |
|
16
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620 } |
|
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|
621 |
|
24
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|
622 static void make_clip(cairo_t *cr, int n_dirty_areas, |
|
15
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|
623 area_t **dirty_areas) { |
|
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|
624 int i; |
|
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|
625 area_t *area; |
|
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|
626 |
|
c2ce186a5c37
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|
627 for(i = 0; i < n_dirty_areas; i++) { |
|
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|
628 area = dirty_areas[i]; |
|
c2ce186a5c37
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|
629 cairo_rectangle(cr, area->x, area->y, area->w, area->h); |
|
c2ce186a5c37
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|
630 } |
|
c2ce186a5c37
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|
631 cairo_clip(cr); |
|
c2ce186a5c37
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|
632 } |
|
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|
633 |
|
17
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|
634 static void reset_clip(redraw_man_t *rdman) { |
|
24
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diff
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|
635 cairo_reset_clip(rdman->backend); |
|
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|
636 } |
|
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diff
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|
637 |
|
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diff
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|
638 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
|
e598bc809c0f
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|
639 area_t **dirty_areas) { |
|
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|
640 if(n_dirty_areas) |
|
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diff
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|
641 make_clip(rdman->backend, n_dirty_areas, dirty_areas); |
|
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|
642 |
|
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diff
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|
643 cairo_paint(rdman->backend); |
|
17
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|
644 } |
|
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Unittest for rdman_redraw_changed().
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|
645 #else /* UNITTEST */ |
|
25
29937c26bb01
Fix bug of a dark line appear when animating.
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24
diff
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|
646 static void clean_canvas(cairo_t *cr) { |
|
24
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|
647 } |
|
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|
648 |
|
17
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
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16
diff
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|
649 static void reset_clip(redraw_man_t *rdman) { |
|
41f0907b27ac
Unittest for rdman_redraw_changed().
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diff
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|
650 } |
|
24
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|
651 |
|
e598bc809c0f
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|
652 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
|
e598bc809c0f
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|
653 area_t **dirty_areas) { |
|
e598bc809c0f
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Thinker K.F. Li <thinker@branda.to>
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diff
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|
654 } |
|
17
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
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|
655 #endif /* UNITTEST */ |
|
41f0907b27ac
Unittest for rdman_redraw_changed().
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|
656 |
| 22 | 657 static void draw_shapes_in_areas(redraw_man_t *rdman, |
|
15
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diff
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|
658 int n_areas, |
|
c2ce186a5c37
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|
659 area_t **areas) { |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
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|
660 geo_t *visit_geo; |
|
c2ce186a5c37
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|
661 int i; |
|
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|
662 |
|
c2ce186a5c37
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|
663 for(visit_geo = STAILQ_HEAD(rdman->all_geos); |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
664 visit_geo != NULL; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
665 visit_geo = STAILQ_NEXT(geo_t, next, visit_geo)) { |
|
16
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
666 if(visit_geo->flags & GEF_DIRTY) |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
667 clean_shape(visit_geo->shape); |
|
57
ab028c9f0930
Ability to hidden shapes and action of visibility.
Thinker K.F. Li <thinker@branda.to>
parents:
38
diff
changeset
|
668 if(visit_geo->flags & GEF_HIDDEN) |
|
ab028c9f0930
Ability to hidden shapes and action of visibility.
Thinker K.F. Li <thinker@branda.to>
parents:
38
diff
changeset
|
669 continue; |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
670 for(i = 0; i < n_areas; i++) { |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
671 if(is_overlay(visit_geo->cur_area, areas[i])) { |
| 22 | 672 draw_shape(rdman, visit_geo->shape); |
|
15
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X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
673 break; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
674 } |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
675 } |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
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|
676 } |
| 13 | 677 } |
| 678 | |
|
24
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
679 |
| 13 | 680 /*! \brief Re-draw all changed shapes or shapes affected by changed coords. |
| 681 * | |
| 682 * A coord object has a geo to keep track the range that it's members will | |
| 683 * draw on. Geo of a coord should be recomputed when the coord is changed. | |
| 684 * Geo of a coord used to accelerate finding overlay shape objects of | |
| 685 * a specified geo. A coord object also must be recomputed when one of | |
| 686 * it's members is changed. | |
| 687 * | |
| 688 * New and old geo values of a coord object that is recomputed for | |
| 689 * changing of it-self must be used to find overlay shape objects. | |
| 690 * New and old geo values of a shape should also be used to find | |
| 691 * overlay shape objects, too. If a shape's coord is changed, shape's | |
| 692 * geo object is not used to find overlay shape objects any more. | |
| 693 * | |
| 694 * steps: | |
| 695 * - update chagned coord objects | |
| 14 | 696 * - recompute area for changed coord objects |
| 13 | 697 * - recompute geo for members shape objects |
| 14 | 698 * - clear dirty of geo for members to prevent from |
| 699 * recomputing for change of shape objects. | |
| 700 * - add old and new area value to list of dirty areas. | |
| 13 | 701 * - recompute geo for changed shape objects |
| 14 | 702 * - only if a shape object is dirty. |
| 703 * - put new and old value of area of geo to list of dirty areas. | |
| 704 * - Scan all shapes and redraw shapes overlaid with dirty areas. | |
| 13 | 705 * |
| 14 | 706 * dirty flag of coord objects is cleared after update. |
|
15
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X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
707 * dirty flag of geo objects is also cleared after recomputing. |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
708 * Clean dirty flag can prevent redundant computing for geo and |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
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parents:
14
diff
changeset
|
709 * corod objects. |
| 14 | 710 * |
| 13 | 711 */ |
| 712 int rdman_redraw_changed(redraw_man_t *rdman) { | |
| 28 | 713 int r; |
| 13 | 714 int n_dirty_areas; |
| 14 | 715 area_t **dirty_areas; |
| 13 | 716 |
| 29 | 717 r = clean_rdman_dirties(rdman); |
|
16
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A simple animation using rdman_redraw_changed().
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parents:
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|
718 if(r != OK) |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
719 return ERR; |
| 13 | 720 |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
721 n_dirty_areas = rdman->n_dirty_areas; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
722 dirty_areas = rdman->dirty_areas; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
723 if(n_dirty_areas > 0) { |
|
25
29937c26bb01
Fix bug of a dark line appear when animating.
Thinker K.F. Li <thinker@branda.to>
parents:
24
diff
changeset
|
724 clean_canvas(rdman->cr); |
| 22 | 725 draw_shapes_in_areas(rdman, n_dirty_areas, dirty_areas); |
|
24
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
726 copy_cr_2_backend(rdman, rdman->n_dirty_areas, rdman->dirty_areas); |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
727 rdman->n_dirty_areas = 0; |
|
17
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
16
diff
changeset
|
728 reset_clip(rdman); |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
729 } |
|
16
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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changeset
|
730 rdman->n_dirty_areas = 0; |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
731 |
|
15
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X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
732 return OK; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
733 } |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
734 |
| 38 | 735 /* NOTE: Before redrawing, the canvas/surface must be cleaned. |
| 736 * NOTE: After redrawing, the content must be copied to the backend surface. | |
| 737 */ | |
| 738 | |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
739 int rdman_redraw_all(redraw_man_t *rdman) { |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
740 geo_t *geo; |
| 29 | 741 int r; |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
742 |
| 29 | 743 r = clean_rdman_dirties(rdman); |
| 744 if(r != OK) | |
| 745 return ERR; | |
|
16
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
746 |
| 37 | 747 clean_canvas(rdman->cr); |
| 748 | |
|
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
749 for(geo = STAILQ_HEAD(rdman->all_geos); |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
750 geo != NULL; |
|
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
751 geo = STAILQ_NEXT(geo_t, next, geo)) { |
|
57
ab028c9f0930
Ability to hidden shapes and action of visibility.
Thinker K.F. Li <thinker@branda.to>
parents:
38
diff
changeset
|
752 if(geo->flags & GEF_HIDDEN) |
|
ab028c9f0930
Ability to hidden shapes and action of visibility.
Thinker K.F. Li <thinker@branda.to>
parents:
38
diff
changeset
|
753 continue; |
| 22 | 754 draw_shape(rdman, geo->shape); |
| 13 | 755 } |
|
24
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
756 copy_cr_2_backend(rdman, 0, NULL); |
| 29 | 757 rdman->n_dirty_areas = 0; |
| 13 | 758 |
| 759 return OK; | |
| 12 | 760 } |
| 761 | |
| 37 | 762 int rdman_redraw_area(redraw_man_t *rdman, co_aix x, co_aix y, |
| 763 co_aix w, co_aix h) { | |
| 764 area_t area; | |
| 765 int r; | |
| 766 | |
| 767 area.x = x; | |
| 768 area.y = y; | |
| 769 area.w = w; | |
| 770 area.h = h; | |
| 771 add_dirty_area(rdman, &area); | |
| 772 | |
| 773 r = rdman_redraw_changed(rdman); | |
| 774 | |
| 775 return r; | |
| 776 } | |
| 777 | |
|
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
|
778 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
|
779 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
|
780 |
|
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
|
781 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
|
782 |
|
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
|
783 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
|
784 } |
|
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
|
785 |
|
18
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
786 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
|
787 shnode_t *node; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
788 |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
789 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
|
790 if(node) { |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
791 node->shape = shape; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
792 node->next = NULL; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
793 } |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
794 return node; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
795 } |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
796 |
| 12 | 797 /* |
|
16
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
798 * Dirty of geo |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
799 * 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
|
800 * 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
|
801 * 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
|
802 * 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
|
803 * size, and positions. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
804 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
805 * Dirty of coord |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
806 * 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
|
807 * 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
|
808 * 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
|
809 * 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
|
810 * 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
|
811 * 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
|
812 * 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
|
813 * 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
|
814 * 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
|
815 * 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
|
816 * 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
|
817 * 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
|
818 * 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
|
819 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
820 * 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
|
821 * 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
|
822 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
823 * 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
|
824 * 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
|
825 * 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
|
826 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
827 * 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
|
828 * 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
|
829 */ |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
830 |
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e17e12b112c4
A simple animation using rdman_redraw_changed().
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831 /* |
| 12 | 832 * When redraw an area, the affected elements may also extend to |
| 833 * outside of the area. Since the order of drawing will change | |
| 834 * the result, it will infect more and more elements to keep | |
| 835 * drawing order althrough they are overlaid directly with | |
| 836 * specified area. | |
| 837 * | |
| 838 * To fix the problem, we don't extend the set of redrawing to | |
| 839 * elements they are not overliad directly. The redrawing is | |
| 840 * performed on a temporary surface, clipped to fit the area, and | |
| 841 * update only specified area on the destinate surface. | |
| 842 */ | |
| 843 | |
| 844 /* | |
| 845 * To accelerate speed of transformation, when a matrix changed, | |
| 846 * transformation should be aggregated and computed in a loop. | |
| 847 * It can get intereset of higher hit rate of cache. | |
| 848 * - shapes prvoide list of positions needed to be transformed. | |
| 849 * - redraw_man transforms positions from shapes. | |
| 850 * - shapes drawing with result of transforms. | |
| 851 * - shapes should be called to give them a chance to update geometries. | |
| 852 */ | |
| 853 | |
| 13 | 854 /* |
| 855 * functions: | |
| 856 * - redraw all | |
| 857 * - redraw changed | |
| 858 */ | |
| 859 | |
| 12 | 860 #ifdef UNITTEST |
| 861 | |
| 862 #include <CUnit/Basic.h> | |
| 19 | 863 #include "paint.h" |
| 12 | 864 |
| 865 struct _sh_dummy { | |
| 866 shape_t shape; | |
| 867 co_aix x, y; | |
| 868 co_aix w, h; | |
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869 int draw_cnt; |
| 12 | 870 }; |
| 871 | |
| 872 shape_t *sh_dummy_new(co_aix x, co_aix y, co_aix w, co_aix h) { | |
| 873 sh_dummy_t *dummy; | |
| 874 | |
| 875 dummy = (sh_dummy_t *)malloc(sizeof(sh_dummy_t)); | |
| 876 if(dummy == NULL) | |
| 877 return NULL; | |
| 878 | |
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879 memset(dummy, 0, sizeof(sh_dummy_t)); |
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880 |
| 12 | 881 dummy->x = x; |
| 882 dummy->y = y; | |
| 883 dummy->w = w; | |
| 884 dummy->h = h; | |
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885 dummy->draw_cnt = 0; |
| 12 | 886 |
| 887 return (shape_t *)dummy; | |
| 888 } | |
| 889 | |
| 890 void sh_dummy_free(shape_t *sh) { | |
| 891 free(sh); | |
| 892 } | |
| 893 | |
| 894 void sh_dummy_transform(shape_t *shape) { | |
| 895 sh_dummy_t *dummy = (sh_dummy_t *)shape; | |
| 896 co_aix poses[2][2]; | |
| 897 co_aix x1, y1, x2, y2; | |
| 898 | |
| 899 if(shape->geo && shape->coord) { | |
| 900 x1 = dummy->x; | |
| 901 y1 = dummy->y; | |
| 902 x2 = x1 + dummy->w; | |
| 903 y2 = y1 + dummy->h; | |
| 904 | |
| 905 coord_trans_pos(shape->coord, &x1, &y1); | |
| 906 coord_trans_pos(shape->coord, &x2, &y2); | |
| 907 poses[0][0] = x1; | |
| 908 poses[0][1] = y1; | |
| 909 poses[1][0] = x2; | |
| 910 poses[1][1] = y2; | |
| 911 | |
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912 if(shape->geo) |
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913 geo_from_positions(shape->geo, 2, poses); |
| 12 | 914 } |
| 915 } | |
| 916 | |
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917 void sh_dummy_fill(shape_t *shape, cairo_t *cr) { |
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918 sh_dummy_t *dummy; |
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919 |
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920 dummy = (sh_dummy_t *)shape; |
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921 dummy->draw_cnt++; |
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922 } |
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923 |
| 19 | 924 static void dummy_paint_prepare(paint_t *paint, cairo_t *cr) { |
| 925 } | |
| 926 | |
| 927 static void dummy_paint_free(paint_t *paint) { | |
| 928 if(paint) | |
| 929 free(paint); | |
| 930 } | |
| 931 | |
| 932 paint_t *dummy_paint_new(redraw_man_t *rdman) { | |
| 933 paint_t *paint; | |
| 934 | |
| 935 paint = (paint_t *)malloc(sizeof(paint_t)); | |
| 936 if(paint == NULL) | |
| 937 return NULL; | |
| 938 | |
| 939 paint_init(paint, dummy_paint_prepare, dummy_paint_free); | |
| 940 | |
| 941 return paint; | |
| 942 } | |
| 943 | |
| 12 | 944 void test_rdman_find_overlaid_shapes(void) { |
| 945 redraw_man_t rdman; | |
| 946 geo_t geo; | |
| 947 coord_t *coords[3]; | |
| 948 shape_t *shapes[5]; | |
| 949 geo_t **overlays; | |
| 13 | 950 co_aix pos[2][2]; |
| 12 | 951 int n; |
| 952 int i; | |
| 953 | |
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954 redraw_man_init(&rdman, NULL, NULL); |
| 12 | 955 coords[0] = rdman.root_coord; |
| 956 for(i = 1; i < 3; i++) { | |
| 957 coords[i] = rdman_coord_new(&rdman, rdman.root_coord); | |
| 958 } | |
| 959 for(i = 0; i < 5; i++) { | |
| 960 shapes[i] = sh_dummy_new(10 + i * 30, 10 + i * 20, 25, 15); | |
| 961 CU_ASSERT(shapes[i] != NULL); | |
| 962 } | |
| 963 for(i = 0; i < 3; i++) | |
| 964 rdman_add_shape(&rdman, shapes[i], coords[1]); | |
| 965 for(i = 3; i < 5; i++) | |
| 966 rdman_add_shape(&rdman, shapes[i], coords[2]); | |
| 967 | |
| 968 coords[1]->matrix[0] = 2; | |
| 969 coords[0]->matrix[4] = 2; | |
| 970 | |
| 971 update_aggr_matrix(coords[0]); | |
| 972 for(i = 0; i < 5; i++) | |
| 973 sh_dummy_transform(shapes[i]); | |
| 974 | |
| 13 | 975 pos[0][0] = 100; |
| 976 pos[0][1] = 120; | |
| 977 pos[1][0] = 100 + 140; | |
| 978 pos[1][1] = 120 + 40; | |
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979 geo_init(&geo); |
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980 geo_from_positions(&geo, 2, pos); |
| 12 | 981 |
| 982 n = rdman_find_overlaid_shapes(&rdman, &geo, &overlays); | |
| 983 CU_ASSERT(n == 2); | |
| 984 CU_ASSERT(overlays != NULL); | |
| 985 CU_ASSERT(overlays[0] == shapes[2]->geo); | |
| 986 CU_ASSERT(overlays[1] == shapes[3]->geo); | |
| 987 | |
| 988 free(overlays); | |
| 989 for(i = 0; i < 5; i++) | |
| 990 sh_dummy_free(shapes[i]); | |
| 991 | |
| 992 redraw_man_destroy(&rdman); | |
| 993 } | |
| 994 | |
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995 void test_rdman_redraw_changed(void) { |
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996 coord_t *coords[3]; |
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997 shape_t *shapes[3]; |
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998 sh_dummy_t **dummys; |
| 19 | 999 paint_t *paint; |
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1000 redraw_man_t *rdman; |
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1001 redraw_man_t _rdman; |
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1002 int i; |
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1003 |
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1004 dummys = (sh_dummy_t **)shapes; |
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1005 |
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1006 rdman = &_rdman; |
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1007 redraw_man_init(rdman, NULL, NULL); |
| 19 | 1008 paint = dummy_paint_new(rdman); |
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1009 for(i = 0; i < 3; i++) { |
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1010 shapes[i] = sh_dummy_new(0, 0, 50, 50); |
| 19 | 1011 rdman_paint_fill(rdman, paint, shapes[i]); |
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1012 coords[i] = rdman_coord_new(rdman, rdman->root_coord); |
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1013 coords[i]->matrix[2] = 10 + i * 100; |
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1014 coords[i]->matrix[5] = 10 + i * 100; |
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1015 rdman_coord_changed(rdman, coords[i]); |
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1016 rdman_add_shape(rdman, shapes[i], coords[i]); |
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1017 } |
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1018 rdman_redraw_all(rdman); |
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1019 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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1020 CU_ASSERT(dummys[1]->draw_cnt == 1); |
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1021 CU_ASSERT(dummys[2]->draw_cnt == 1); |
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1022 |
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1023 coords[2]->matrix[2] = 100; |
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1024 coords[2]->matrix[5] = 100; |
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1025 rdman_coord_changed(rdman, coords[2]); |
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1026 rdman_redraw_changed(rdman); |
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1027 |
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1028 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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1029 CU_ASSERT(dummys[1]->draw_cnt == 2); |
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1030 CU_ASSERT(dummys[2]->draw_cnt == 2); |
| 19 | 1031 |
| 1032 paint->free(paint); | |
| 1033 redraw_man_destroy(rdman); | |
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1034 } |
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1035 |
| 12 | 1036 CU_pSuite get_redraw_man_suite(void) { |
| 1037 CU_pSuite suite; | |
| 1038 | |
| 1039 suite = CU_add_suite("Suite_redraw_man", NULL, NULL); | |
| 1040 CU_ADD_TEST(suite, test_rdman_find_overlaid_shapes); | |
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1041 CU_ADD_TEST(suite, test_rdman_redraw_changed); |
| 12 | 1042 |
| 1043 return suite; | |
| 1044 } | |
| 1045 | |
| 1046 #endif /* UNITTEST */ |