Mercurial > MadButterfly
annotate src/redraw_man.c @ 139:1695a4b02b14
Members of coords are geos instead of shapes, now.
author | Thinker K.F. Li <thinker@branda.to> |
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date | Mon, 22 Sep 2008 19:22:57 +0800 |
parents | 9f4fc9ecfd1f |
children | 0de8fd11271e |
rev | line source |
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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 | |
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18 #define ARRAY_EXT_SZ 64 |
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19 |
13 | 20 #define SWAP(a, b, t) do { t c; c = a; a = b; b = c; } while(0) |
21 | |
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22 #ifdef UNITTEST |
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23 typedef struct _sh_dummy sh_dummy_t; |
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24 |
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25 extern void sh_dummy_transform(shape_t *shape); |
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26 extern void sh_dummy_fill(shape_t *, cairo_t *); |
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27 #endif /* UNITTEST */ |
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28 |
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29 static subject_t *ob_subject_alloc(ob_factory_t *factory); |
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30 static void ob_subject_free(ob_factory_t *factory, subject_t *subject); |
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31 static observer_t *ob_observer_alloc(ob_factory_t *factory); |
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32 static void ob_observer_free(ob_factory_t *factory, observer_t *observer); |
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33 static subject_t *ob_get_parent_subject(ob_factory_t *factory, |
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34 subject_t *cur_subject); |
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35 |
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36 |
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37 /*! \brief Sort a list of element by a unsigned integer. |
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38 * |
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39 * The result is in ascend order. The unsigned integers is |
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40 * at offset specified by 'off' from start address of elemnts. |
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41 */ |
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42 static void _insert_sort(void **elms, int num, int off) { |
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43 int i, j; |
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44 unsigned int val; |
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45 void *elm_i; |
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46 |
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47 for(i = 1; i < num; i++) { |
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48 elm_i = elms[i]; |
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49 val = *(unsigned int *)(elm_i + off); |
119 | 50 for(j = i; j > 0; j--) { |
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51 if(*(unsigned int *)(elms[j - 1] + off) <= val) |
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52 break; |
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53 elms[j] = elms[j - 1]; |
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54 } |
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55 elms[j] = elm_i; |
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56 } |
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57 } |
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58 |
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59 static int extend_memblk(void **buf, int o_size, int n_size) { |
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60 void *new_buf; |
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61 |
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62 new_buf = realloc(*buf, n_size); |
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63 if(new_buf == NULL) |
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64 return ERR; |
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65 |
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66 *buf = new_buf; |
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67 |
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68 return OK; |
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69 } |
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70 |
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71 static int add_dirty_geo(redraw_man_t *rdman, geo_t *geo) { |
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72 int max_dirty_geos; |
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73 int r; |
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74 |
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75 if(rdman->n_dirty_geos >= rdman->max_dirty_geos) { |
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76 max_dirty_geos = rdman->max_dirty_geos + ARRAY_EXT_SZ; |
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77 r = extend_memblk((void **)&rdman->dirty_geos, |
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78 sizeof(geo_t *) * rdman->n_dirty_geos, |
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79 sizeof(geo_t *) * max_dirty_geos); |
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80 if(r != OK) |
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81 return ERR; |
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82 rdman->max_dirty_geos = max_dirty_geos; |
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83 } |
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84 |
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85 rdman->dirty_geos[rdman->n_dirty_geos++] = geo; |
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86 return OK; |
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87 } |
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88 |
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89 static int add_dirty_area(redraw_man_t *rdman, area_t *area) { |
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90 int max_dirty_areas; |
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91 int r; |
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92 |
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93 if(rdman->n_dirty_areas >= rdman->max_dirty_areas) { |
37 | 94 /* every geo object and coord object can contribute 2 areas. |
95 * rdman_draw_area() may also contribute 1 area. | |
96 */ | |
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97 max_dirty_areas = rdman->max_dirty_areas + ARRAY_EXT_SZ; |
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98 r = extend_memblk((void **)&rdman->dirty_areas, |
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99 sizeof(area_t *) * rdman->n_dirty_areas, |
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100 sizeof(area_t *) * max_dirty_areas); |
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101 if(r != OK) |
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102 return ERR; |
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103 rdman->max_dirty_areas = max_dirty_areas; |
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104 } |
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105 |
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106 rdman->dirty_areas[rdman->n_dirty_areas++] = area; |
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107 return OK; |
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108 } |
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109 |
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110 static void area_to_positions(area_t *area, co_aix (*poses)[2]) { |
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111 poses[0][0] = area->x; |
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112 poses[0][1] = area->y; |
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113 poses[1][0] = area->x + area->w; |
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114 poses[1][1] = area->y + area->h;; |
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115 } |
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116 |
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117 static cairo_t *new_canvas(redraw_man_t *rdman) { |
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118 #ifndef UNITTEST |
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119 cairo_t *cr; |
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120 cairo_surface_t *surface, *cr_surface; |
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121 int w, h; |
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122 |
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123 cr_surface = cairo_get_target(rdman->cr); |
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124 w = cairo_image_surface_get_width(cr_surface); |
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125 h = cairo_image_surface_get_height(cr_surface); |
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126 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
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127 w, h); |
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128 cr = cairo_create(surface); |
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129 |
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130 return cr; |
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131 #else |
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132 return NULL; |
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133 #endif |
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134 } |
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135 |
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136 static void free_canvas(cairo_t *canvas) { |
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137 #ifndef UNITTEST |
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138 cairo_destroy(canvas); |
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139 #endif |
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140 } |
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141 |
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142 int redraw_man_init(redraw_man_t *rdman, cairo_t *cr, cairo_t *backend) { |
12 | 143 extern void redraw_man_destroy(redraw_man_t *rdman); |
144 | |
145 memset(rdman, 0, sizeof(redraw_man_t)); | |
146 | |
147 rdman->geo_pool = elmpool_new(sizeof(geo_t), 128); | |
148 if(rdman->geo_pool == NULL) | |
149 return ERR; | |
150 | |
151 rdman->coord_pool = elmpool_new(sizeof(coord_t), 16); | |
152 if(rdman->coord_pool == NULL) { | |
153 elmpool_free(rdman->geo_pool); | |
154 return ERR; | |
155 } | |
156 | |
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157 rdman->shnode_pool = elmpool_new(sizeof(shnode_t), 16); |
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158 if(rdman->shnode_pool == NULL) { |
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159 elmpool_free(rdman->geo_pool); |
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160 elmpool_free(rdman->coord_pool); |
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161 return ERR; |
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162 } |
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163 |
75
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164 rdman->observer_pool = elmpool_new(sizeof(observer_t), 32); |
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165 if(rdman->observer_pool == NULL) { |
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166 elmpool_free(rdman->geo_pool); |
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167 elmpool_free(rdman->coord_pool); |
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168 elmpool_free(rdman->shnode_pool); |
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169 return ERR; |
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170 } |
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171 |
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172 rdman->subject_pool = elmpool_new(sizeof(subject_t), 32); |
73
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173 if(rdman->subject_pool == NULL) { |
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174 elmpool_free(rdman->geo_pool); |
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175 elmpool_free(rdman->coord_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 return ERR; |
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179 } |
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180 |
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181 rdman->ob_factory.subject_alloc = ob_subject_alloc; |
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182 rdman->ob_factory.subject_free = ob_subject_free; |
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183 rdman->ob_factory.observer_alloc = ob_observer_alloc; |
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184 rdman->ob_factory.observer_free = ob_observer_free; |
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185 rdman->ob_factory.get_parent_subject = ob_get_parent_subject; |
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186 |
12 | 187 rdman->root_coord = elmpool_elm_alloc(rdman->coord_pool); |
188 if(rdman->root_coord == NULL) | |
189 redraw_man_destroy(rdman); | |
13 | 190 rdman->n_coords = 1; |
12 | 191 coord_init(rdman->root_coord, NULL); |
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192 rdman->root_coord->mouse_event = subject_new(&rdman->ob_factory, |
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193 rdman->root_coord, |
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194 OBJT_COORD); |
138
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195 rdman->root_coord->flags |= COF_OWN_CANVAS; |
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196 rdman->root_coord->canvas = cr; |
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197 rdman->root_coord->opacity = 1; |
12 | 198 |
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199 rdman->cr = cr; |
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200 rdman->backend = backend; |
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201 |
12 | 202 return OK; |
203 } | |
204 | |
205 void redraw_man_destroy(redraw_man_t *rdman) { | |
138
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206 coord_t *coord, *saved_coord; |
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207 |
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208 coord = postorder_coord_subtree(rdman->root_coord, NULL); |
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209 while(coord) { |
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210 saved_coord = coord; |
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211 coord = postorder_coord_subtree(rdman->root_coord, coord); |
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212 rdman_coord_free(rdman, saved_coord); |
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213 } |
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214 |
12 | 215 elmpool_free(rdman->coord_pool); |
216 elmpool_free(rdman->geo_pool); | |
18
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217 elmpool_free(rdman->shnode_pool); |
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218 elmpool_free(rdman->observer_pool); |
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219 elmpool_free(rdman->subject_pool); |
13 | 220 if(rdman->dirty_coords) |
221 free(rdman->dirty_coords); | |
14 | 222 if(rdman->dirty_geos) |
223 free(rdman->dirty_geos); | |
30
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224 if(rdman->gen_geos) |
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225 free(rdman->gen_geos); |
12 | 226 } |
227 | |
228 | |
229 #define ASSERT(x) | |
230 /* | |
231 * Change transformation matrix | |
232 * - update aggregated transformation matrix | |
233 * - of coord_t object been changed. | |
234 * - of children coord_t objects. | |
235 * - redraw members of coord_t objects. | |
236 * - redraw shape objects they are overlaid with members. | |
237 * - find out overlaid shape objects. | |
238 * - geo_t of a coord_t object | |
239 * - can make finding more efficiency. | |
240 * - fill overlay geo_t objects of members. | |
241 * | |
242 * Change a shape object | |
243 * - redraw changed object. | |
244 * - redraw shape objects they are overlaid with changed object. | |
245 * - find out overlaid shape objects. | |
246 * | |
247 * That coord and geo of shape objects are setted by user code | |
248 * give user code a chance to collect coord and geo objects together | |
249 * and gain interest of higher cache hit rate. | |
250 */ | |
251 | |
252 int rdman_add_shape(redraw_man_t *rdman, shape_t *shape, coord_t *coord) { | |
253 geo_t *geo; | |
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254 int r; |
12 | 255 |
256 geo = elmpool_elm_alloc(rdman->geo_pool); | |
257 if(geo == NULL) | |
258 return ERR; | |
17
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259 |
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260 geo_init(geo); |
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261 geo->mouse_event = subject_new(&rdman->ob_factory, geo, OBJT_GEO); |
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262 |
139
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263 STAILQ_INS_TAIL(coord->members, geo_t, coord_next, geo); |
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264 coord->num_members++; |
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265 |
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266 /* New one should be dirty to recompute it when drawing. */ |
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267 geo->flags |= GEF_DIRTY; |
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268 r = add_dirty_geo(rdman, geo); |
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269 if(r != OK) |
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270 return ERR; |
13 | 271 |
12 | 272 sh_attach_coord(shape, coord); |
139
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273 sh_attach_geo(shape, geo); |
12 | 274 |
275 return OK; | |
276 } | |
277 | |
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278 /*! \brief Remove a shape object from redraw manager. |
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279 * |
58 | 280 * \todo redraw shape objects that overlaid with removed one. |
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281 */ |
12 | 282 int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape) { |
139
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283 geo_t *geo; |
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284 coord_t *coord; |
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285 |
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286 geo = shape->geo; |
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287 coord = shape->coord; |
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288 STAILQ_REMOVE(coord->members, geo_t, coord_next, geo); |
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289 subject_free(&rdman->ob_factory, geo->mouse_event); |
104 | 290 sh_detach_geo(shape); |
12 | 291 elmpool_elm_free(rdman->geo_pool, shape->geo); |
292 sh_detach_coord(shape); | |
293 return OK; | |
294 } | |
295 | |
296 coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent) { | |
13 | 297 coord_t *coord, *root_coord; |
298 coord_t *visit; | |
12 | 299 |
300 coord = elmpool_elm_alloc(rdman->coord_pool); | |
301 if(coord == NULL) | |
302 return NULL; | |
303 | |
304 coord_init(coord, parent); | |
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305 coord->mouse_event = subject_new(&rdman->ob_factory, |
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306 coord, |
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307 OBJT_COORD); |
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308 /*! \note default opacity == 1 */ |
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309 coord->opacity = 1; |
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310 if(parent) |
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311 coord->canvas = parent->canvas; |
13 | 312 rdman->n_coords++; |
313 | |
314 coord->order = ++rdman->next_coord_order; | |
315 if(coord->order == 0) { | |
316 rdman->next_coord_order = 0; | |
317 root_coord = visit = rdman->root_coord; | |
318 /* skip root coord. */ | |
319 visit = preorder_coord_subtree(root_coord, visit); | |
320 while(visit) { | |
321 visit->order = ++rdman->next_coord_order; | |
322 visit = preorder_coord_subtree(root_coord, visit); | |
323 } | |
324 } | |
12 | 325 |
139
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326 coord->before_pmem = parent->num_members; |
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327 |
12 | 328 return coord; |
329 } | |
330 | |
331 /*! \brief Free a coord of a redraw_man_t object. | |
332 * | |
333 * \param coord is a coord_t without children and members. | |
334 * \return 0 for successful, -1 for error. | |
335 */ | |
336 int rdman_coord_free(redraw_man_t *rdman, coord_t *coord) { | |
337 coord_t *parent; | |
338 | |
339 parent = coord->parent; | |
340 if(parent == NULL) | |
341 return ERR; | |
342 | |
343 if(STAILQ_HEAD(coord->members) != NULL) | |
344 return ERR; | |
345 | |
346 if(STAILQ_HEAD(coord->children) != NULL) | |
347 return ERR; | |
348 | |
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349 /* Free canvas (\ref redraw) */ |
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350 if(coord->flags & COF_OWN_CANVAS) |
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351 free_canvas(coord->canvas); |
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352 |
12 | 353 STAILQ_REMOVE(parent->children, coord_t, sibling, coord); |
73
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Observer for mouse events
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354 subject_free(&rdman->ob_factory, coord->mouse_event); |
12 | 355 elmpool_elm_free(rdman->coord_pool, coord); |
13 | 356 rdman->n_coords--; |
357 | |
358 return OK; | |
359 } | |
360 | |
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361 static void make_sure_dirty_coords(redraw_man_t *rdman) { |
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362 int max_dirty_coords; |
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363 int r; |
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364 |
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365 if(rdman->n_dirty_coords >= rdman->max_dirty_coords) { |
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366 /* Max of dirty_coords is not big enough. */ |
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367 max_dirty_coords = rdman->max_dirty_coords + 16; |
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368 |
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369 r = extend_memblk((void **)&rdman->dirty_coords, |
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370 sizeof(coord_t *) * rdman->n_dirty_coords, |
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371 sizeof(coord_t *) * max_dirty_coords); |
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372 rdman->max_dirty_coords = max_dirty_coords; |
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373 } |
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374 } |
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375 |
13 | 376 /*! \brief Mark a coord is changed. |
377 * | |
378 * A changed coord_t object is marked as dirty and put | |
379 * into dirty_coords list. | |
380 */ | |
381 int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord) { | |
16
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382 coord_t *child; |
13 | 383 |
384 if(coord->flags & COF_DIRTY) | |
385 return OK; | |
386 | |
16
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387 /* Make the coord and child coords dirty. */ |
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388 for(child = coord; |
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389 child != NULL; |
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390 child = preorder_coord_subtree(coord, child)) { |
114
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391 if(child->flags & COF_DIRTY) |
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392 continue; |
85
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393 make_sure_dirty_coords(rdman); |
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394 |
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395 rdman->dirty_coords[rdman->n_dirty_coords++] = child; |
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396 child->flags |= COF_DIRTY; |
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397 } |
13 | 398 |
399 return OK; | |
400 } | |
401 | |
18
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402 static int _rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
13 | 403 geo_t *geo; |
404 int r; | |
405 | |
406 geo = shape->geo; | |
407 | |
408 if(geo->flags & GEF_DIRTY) | |
409 return OK; | |
410 | |
411 r = add_dirty_geo(rdman, geo); | |
412 if(r == ERR) | |
413 return ERR; | |
414 geo->flags |= GEF_DIRTY; | |
12 | 415 |
416 return OK; | |
417 } | |
418 | |
18
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419 /*! \brief Mark a shape is changed. |
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420 * |
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421 * The geo_t object of a changed shape is mark as dirty and |
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422 * put into dirty_geos list. |
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423 */ |
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424 int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
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425 return _rdman_shape_changed(rdman, shape); |
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426 } |
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427 |
29 | 428 int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint) { |
429 shnode_t *node; | |
430 int r; | |
431 | |
432 for(node = STAILQ_HEAD(paint->members); | |
433 node != NULL; | |
434 node = STAILQ_NEXT(shnode_t, next, node)) { | |
435 r = _rdman_shape_changed(rdman, node->shape); | |
436 if(r != OK) | |
437 return ERR; | |
438 } | |
439 return OK; | |
440 } | |
441 | |
28 | 442 /* Clean dirties */ |
443 | |
57
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444 static int is_coord_subtree_hidden(coord_t *coord) { |
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445 while(coord) { |
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446 if(coord->flags & COF_HIDDEN) |
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447 return 1; |
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448 coord = coord->parent; |
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449 } |
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450 return 0; |
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451 } |
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452 |
28 | 453 static void clean_shape(shape_t *shape) { |
454 switch(shape->sh_type) { | |
455 case SHT_PATH: | |
456 sh_path_transform(shape); | |
457 break; | |
458 case SHT_TEXT: | |
459 sh_text_transform(shape); | |
460 break; | |
35
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461 case SHT_RECT: |
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462 sh_rect_transform(shape); |
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463 break; |
28 | 464 #ifdef UNITTEST |
465 default: | |
466 sh_dummy_transform(shape); | |
467 break; | |
468 #endif /* UNITTEST */ | |
469 } | |
470 shape->geo->flags &= ~GEF_DIRTY; | |
57
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471 |
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472 if(is_coord_subtree_hidden(shape->coord)) |
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473 shape->geo->flags |= GEF_HIDDEN; |
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474 else |
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475 shape->geo->flags &= ~GEF_HIDDEN; |
28 | 476 } |
477 | |
138
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478 /*! \brief Setup canvas for the coord. |
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479 * |
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480 * Own a canvas or inherit it from parent. |
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481 * \sa |
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482 * - \ref redraw |
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483 */ |
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484 static void setup_canvas(redraw_man_t *rdman, coord_t *coord) { |
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485 if(coord->parent == NULL) |
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486 return; |
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487 |
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488 if(coord->opacity != 1) { |
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489 if(!(coord->flags & COF_OWN_CANVAS)) { |
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490 coord->canvas = new_canvas(rdman); |
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491 coord->flags |= COF_OWN_CANVAS; |
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492 } |
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493 } else { |
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494 if(coord->flags & COF_OWN_CANVAS) { |
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495 free_canvas(coord->canvas); |
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496 coord->flags &= ~COF_OWN_CANVAS; |
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497 } |
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498 coord->canvas = coord->parent->canvas; |
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499 } |
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500 } |
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501 |
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502 static int clean_coord(redraw_man_t *rdman, coord_t *coord) { |
28 | 503 geo_t *geo; |
504 co_aix (*poses)[2]; | |
505 int cnt, pos_cnt; | |
506 | |
138
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507 setup_canvas(rdman, coord); |
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508 |
28 | 509 compute_aggr_of_coord(coord); |
510 | |
511 /* Clean member shapes. */ | |
512 cnt = 0; | |
139
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513 for(geo = STAILQ_HEAD(coord->members); |
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514 geo != NULL; |
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515 geo = STAILQ_NEXT(geo_t, coord_next, geo)) { |
28 | 516 SWAP(geo->cur_area, geo->last_area, area_t *); |
139
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517 clean_shape(geo->shape); |
28 | 518 cnt++; |
519 } | |
520 | |
521 /* Compute area of the coord. */ | |
522 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * 2 * cnt); | |
523 if(poses == NULL) | |
524 return ERR; | |
525 | |
526 pos_cnt = 0; | |
139
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527 for(geo = STAILQ_HEAD(coord->members); |
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528 geo != NULL; |
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529 geo = STAILQ_NEXT(geo_t, coord_next, geo)) { |
28 | 530 area_to_positions(geo->cur_area, poses + pos_cnt); |
531 pos_cnt += 2; | |
532 } | |
533 | |
534 SWAP(coord->cur_area, coord->last_area, area_t *); | |
535 area_init(coord->cur_area, pos_cnt, poses); | |
536 free(poses); | |
537 | |
538 coord->flags &= ~COF_DIRTY; | |
539 | |
540 return OK; | |
541 } | |
542 | |
135 | 543 /*! \brief Clean coord_t objects. |
133 | 544 */ |
28 | 545 static int clean_rdman_coords(redraw_man_t *rdman) { |
546 coord_t *coord; | |
547 coord_t **dirty_coords; | |
548 int n_dirty_coords; | |
549 int i, r; | |
550 | |
551 n_dirty_coords = rdman->n_dirty_coords; | |
552 if(n_dirty_coords > 0) { | |
553 dirty_coords = rdman->dirty_coords; | |
554 _insert_sort((void **)dirty_coords, n_dirty_coords, | |
555 OFFSET(coord_t, order)); | |
556 for(i = 0; i < n_dirty_coords; i++) { | |
557 coord = dirty_coords[i]; | |
558 if(!(coord->flags & COF_DIRTY)) | |
559 continue; | |
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560 r = clean_coord(rdman, coord); |
28 | 561 if(r != OK) |
562 return ERR; | |
563 /* These two steps can be avoided for drawing all. */ | |
564 add_dirty_area(rdman, &coord->areas[0]); | |
565 add_dirty_area(rdman, &coord->areas[1]); | |
566 } | |
567 rdman->n_dirty_coords = 0; | |
568 } | |
569 return OK; | |
570 } | |
571 | |
572 static int clean_rdman_geos(redraw_man_t *rdman) { | |
573 int i; | |
574 int n_dirty_geos; | |
575 geo_t **dirty_geos; | |
576 geo_t *visit_geo; | |
577 | |
578 n_dirty_geos = rdman->n_dirty_geos; | |
579 if(n_dirty_geos > 0) { | |
580 dirty_geos = rdman->dirty_geos; | |
581 for(i = 0; i < n_dirty_geos; i++) { | |
582 visit_geo = dirty_geos[i]; | |
583 if(!(visit_geo->flags & GEF_DIRTY)) | |
584 continue; | |
585 | |
586 SWAP(visit_geo->cur_area, visit_geo->last_area, area_t *); | |
587 clean_shape(visit_geo->shape); | |
588 add_dirty_area(rdman, visit_geo->cur_area); | |
589 add_dirty_area(rdman, visit_geo->last_area); | |
590 } | |
591 rdman->n_dirty_geos = 0; | |
592 } | |
593 | |
594 return OK; | |
595 } | |
596 | |
29 | 597 static int clean_rdman_dirties(redraw_man_t *rdman) { |
598 int r; | |
599 | |
600 r = clean_rdman_coords(rdman); | |
601 if(r != OK) | |
602 return ERR; | |
603 | |
604 r = clean_rdman_geos(rdman); | |
605 if(r != OK) | |
606 return ERR; | |
607 | |
608 return OK; | |
609 } | |
610 | |
611 | |
17
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612 /* Drawing and Redrawing |
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613 * ============================================================ |
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614 */ |
16
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615 |
26
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616 #ifndef UNITTEST |
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617 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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618 cairo_set_line_width(cr, shape->stroke_width); |
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619 } |
33
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620 |
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621 static void fill_path_preserve(redraw_man_t *rdman) { |
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622 cairo_fill_preserve(rdman->cr); |
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623 } |
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624 |
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625 static void fill_path(redraw_man_t *rdman) { |
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626 cairo_fill(rdman->cr); |
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627 } |
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628 |
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629 static void stroke_path(redraw_man_t *rdman) { |
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630 cairo_stroke(rdman->cr); |
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631 } |
26
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632 #else |
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633 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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634 } |
33
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635 |
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636 static void fill_path_preserve(redraw_man_t *rdman) { |
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637 } |
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638 |
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639 static void fill_path(redraw_man_t *rdman) { |
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640 } |
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641 |
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642 static void stroke_path(redraw_man_t *rdman) { |
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643 } |
26
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644 #endif |
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645 |
138
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646 static void draw_shape(redraw_man_t *rdman, cairo_t *cr, shape_t *shape) { |
22 | 647 paint_t *fill, *stroke; |
18
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648 |
33
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649 if(shape->fill || shape->stroke) { |
19 | 650 switch(shape->sh_type) { |
651 case SHT_PATH: | |
138
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652 sh_path_draw(shape, cr); |
19 | 653 break; |
27 | 654 case SHT_TEXT: |
138
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655 sh_text_draw(shape, cr); |
27 | 656 break; |
35
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657 case SHT_RECT: |
138
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658 sh_rect_draw(shape, cr); |
35
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659 break; |
17
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660 #ifdef UNITTEST |
19 | 661 default: |
138
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662 sh_dummy_fill(shape, cr); |
19 | 663 break; |
17
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664 #endif /* UNITTEST */ |
19 | 665 } |
33
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666 |
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667 fill = shape->fill; |
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668 if(shape->fill) { |
138
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669 fill->prepare(fill, cr); |
33
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670 if(shape->stroke) |
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671 fill_path_preserve(rdman); |
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672 else |
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673 fill_path(rdman); |
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674 } |
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675 |
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676 stroke = shape->stroke; |
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677 if(stroke) { |
138
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678 stroke->prepare(stroke, cr); |
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679 set_shape_stroke_param(shape, cr); |
33
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680 stroke_path(rdman); |
22 | 681 } |
682 } | |
13 | 683 } |
684 | |
17
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685 #ifndef UNITTEST |
25
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686 static void clean_canvas(cairo_t *cr) { |
58 | 687 /*! \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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688 cairo_set_source_rgb(cr, 1, 1, 1); |
24
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689 cairo_paint(cr); |
16
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690 } |
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691 |
138
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692 static void clean_canvas_black(cairo_t *cr) { |
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693 /*! \todo clean to background color. */ |
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694 cairo_set_source_rgba(cr, 0, 0, 0, 0); |
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695 cairo_paint(cr); |
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696 } |
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697 |
24
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698 static void make_clip(cairo_t *cr, int n_dirty_areas, |
15
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699 area_t **dirty_areas) { |
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700 int i; |
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701 area_t *area; |
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702 |
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703 for(i = 0; i < n_dirty_areas; i++) { |
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704 area = dirty_areas[i]; |
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705 cairo_rectangle(cr, area->x, area->y, area->w, area->h); |
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706 } |
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707 cairo_clip(cr); |
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708 } |
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|
709 |
17
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|
710 static void reset_clip(redraw_man_t *rdman) { |
24
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711 cairo_reset_clip(rdman->backend); |
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712 } |
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|
713 |
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|
714 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
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715 area_t **dirty_areas) { |
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716 if(n_dirty_areas) |
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717 make_clip(rdman->backend, n_dirty_areas, dirty_areas); |
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718 |
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|
719 cairo_paint(rdman->backend); |
17
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720 } |
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|
721 #else /* UNITTEST */ |
25
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722 static void clean_canvas(cairo_t *cr) { |
24
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|
723 } |
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
724 |
138
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
725 static void clean_canvas_black(cairo_t *cr) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
726 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
727 |
17
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
16
diff
changeset
|
728 static void reset_clip(redraw_man_t *rdman) { |
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
16
diff
changeset
|
729 } |
24
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
730 |
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
731 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
732 area_t **dirty_areas) { |
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
733 } |
17
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
16
diff
changeset
|
734 #endif /* UNITTEST */ |
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
16
diff
changeset
|
735 |
139
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
736 static int is_geo_in_areas(geo_t *geo, |
138
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
737 int n_areas, |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
738 area_t **areas) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
739 int i; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
740 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
741 for(i = 0; i < n_areas; i++) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
742 if(is_overlay(geo->cur_area, areas[i])) |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
743 return 1; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
744 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
745 return 0; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
746 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
747 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
748 static void update_canvas_2_parent(redraw_man_t *rdman, coord_t *coord) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
749 cairo_t *pcanvas, *canvas; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
750 cairo_surface_t *surface; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
751 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
752 if(coord == rdman->root_coord) |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
753 return; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
754 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
755 canvas = coord->canvas; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
756 pcanvas = coord->parent->canvas; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
757 surface = cairo_get_target(canvas); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
758 cairo_set_source_surface(pcanvas, surface, 0, 0); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
759 cairo_paint_with_alpha(pcanvas, coord->opacity); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
760 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
761 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
762 static int draw_coord_shapes_in_areas(redraw_man_t *rdman, |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
763 coord_t *coord, |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
764 int n_areas, |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
765 area_t **areas) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
766 int dirty = 0; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
767 int r; |
139
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
768 geo_t *member; |
138
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
769 coord_t *child; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
770 cairo_t *canvas; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
771 int mem_idx; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
772 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
773 canvas = coord->canvas; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
774 member = STAILQ_HEAD(coord->members); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
775 mem_idx = 0; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
776 child = STAILQ_HEAD(coord->children); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
777 while(child != NULL || member != NULL) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
778 if(child && child->before_pmem == mem_idx) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
779 r = draw_coord_shapes_in_areas(rdman, child, n_areas, areas); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
780 dirty |= r; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
781 child = STAILQ_NEXT(coord_t, sibling, child); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
782 } else { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
783 ASSERT(member != NULL); |
139
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
784 if(is_geo_in_areas(member, n_areas, areas)) { |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
785 draw_shape(rdman, canvas, member->shape); |
138
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
786 dirty = 1; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
787 } |
139
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
788 member = STAILQ_NEXT(geo_t, coord_next, member); |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
789 mem_idx++; |
138
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
790 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
791 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
792 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
793 if(dirty && coord->flags & COF_OWN_CANVAS) { |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
794 update_canvas_2_parent(rdman, coord); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
795 clean_canvas_black(coord->canvas); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
796 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
Thinker K.F. Li <thinker@branda.to>
parents:
135
diff
changeset
|
797 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
798 return dirty; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
799 } |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
800 |
22 | 801 static void draw_shapes_in_areas(redraw_man_t *rdman, |
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
802 int n_areas, |
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
803 area_t **areas) { |
138
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
changeset
|
804 draw_coord_shapes_in_areas(rdman, rdman->root_coord, n_areas, areas); |
13 | 805 } |
806 | |
24
e598bc809c0f
No more flash when animation.
Thinker K.F. Li <thinker@branda.to>
parents:
23
diff
changeset
|
807 |
135 | 808 /*! \page coord_opacity How to support opacity attribute for group (coord)? |
809 * | |
810 * I have several ideas to do that. This page show you all ideas. | |
811 * | |
812 * \section idea_one First One | |
813 * Change the structure of tree of coords. It is organized as tree of | |
814 * SVG document, shapes and coords are putten in tree with order the same | |
815 * as the document. The idea can solve the problem, but also seriously | |
816 * impact current code. | |
817 * | |
818 * \section idea_two Second One | |
819 * Add opacity and agg_opacity attribute to coord_t, and update | |
820 * | |
821 */ | |
822 | |
13 | 823 /*! \brief Re-draw all changed shapes or shapes affected by changed coords. |
824 * | |
825 * A coord object has a geo to keep track the range that it's members will | |
826 * draw on. Geo of a coord should be recomputed when the coord is changed. | |
827 * Geo of a coord used to accelerate finding overlay shape objects of | |
828 * a specified geo. A coord object also must be recomputed when one of | |
829 * it's members is changed. | |
830 * | |
831 * New and old geo values of a coord object that is recomputed for | |
832 * changing of it-self must be used to find overlay shape objects. | |
833 * New and old geo values of a shape should also be used to find | |
834 * overlay shape objects, too. If a shape's coord is changed, shape's | |
835 * geo object is not used to find overlay shape objects any more. | |
836 * | |
837 * steps: | |
838 * - update chagned coord objects | |
14 | 839 * - recompute area for changed coord objects |
13 | 840 * - recompute geo for members shape objects |
14 | 841 * - clear dirty of geo for members to prevent from |
842 * recomputing for change of shape objects. | |
843 * - add old and new area value to list of dirty areas. | |
13 | 844 * - recompute geo for changed shape objects |
14 | 845 * - only if a shape object is dirty. |
846 * - put new and old value of area of geo to list of dirty areas. | |
847 * - Scan all shapes and redraw shapes overlaid with dirty areas. | |
13 | 848 * |
14 | 849 * dirty flag of coord objects is cleared after update. |
15
c2ce186a5c37
X_main uses rdman_redraw_all()
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parents:
14
diff
changeset
|
850 * 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
|
851 * Clean dirty flag can prevent redundant computing for geo and |
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
852 * corod objects. |
14 | 853 * |
13 | 854 */ |
855 int rdman_redraw_changed(redraw_man_t *rdman) { | |
28 | 856 int r; |
13 | 857 int n_dirty_areas; |
14 | 858 area_t **dirty_areas; |
13 | 859 |
29 | 860 r = clean_rdman_dirties(rdman); |
16
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
861 if(r != OK) |
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
862 return ERR; |
13 | 863 |
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
864 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
|
865 dirty_areas = rdman->dirty_areas; |
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
866 if(n_dirty_areas > 0) { |
135 | 867 /*! \brief Draw shapes in preorder of coord tree and support opacity |
868 * rules. | |
869 */ | |
25
29937c26bb01
Fix bug of a dark line appear when animating.
Thinker K.F. Li <thinker@branda.to>
parents:
24
diff
changeset
|
870 clean_canvas(rdman->cr); |
22 | 871 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
|
872 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
|
873 rdman->n_dirty_areas = 0; |
17
41f0907b27ac
Unittest for rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
16
diff
changeset
|
874 reset_clip(rdman); |
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
875 } |
16
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
876 rdman->n_dirty_areas = 0; |
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
877 |
15
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
878 return OK; |
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
879 } |
c2ce186a5c37
X_main uses rdman_redraw_all()
Thinker K.F. Li <thinker@branda.to>
parents:
14
diff
changeset
|
880 |
38 | 881 /* NOTE: Before redrawing, the canvas/surface must be cleaned. |
882 * NOTE: After redrawing, the content must be copied to the backend surface. | |
883 */ | |
884 | |
138
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885 /*! \page redraw How to Redraw Shapes? |
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886 * |
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887 * Coords are corresponding objects for group tags of SVG files. |
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888 * In conceptional, every SVG group has a canvas, graphics of child shapes |
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Make shapes and coords drawed in post-order of tree.
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889 * are drawed into the canvas, applied filters of group, and blended into |
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890 * canvas of parent of the group. |
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891 * |
9f4fc9ecfd1f
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|
892 * But, we don't need to create actually a surface/canvas for every coord. |
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893 * We only create surface for coords their opacity value are not 1 or they |
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894 * apply filters on background. Child shapes of coords without canvas |
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895 * are drawed on canvas of nearest ancestor which have canvas. It said |
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896 * a coord owns a canvas or inherits from an ancestor. (\ref COF_OWN_CANVAS, |
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|
897 * clean_coord()) Except, root_coord always owns a canvas. |
9f4fc9ecfd1f
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898 * |
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|
899 * \note Default opacity of a coord is 1. |
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Make shapes and coords drawed in post-order of tree.
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900 * |
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diff
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|
901 * \sa |
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Make shapes and coords drawed in post-order of tree.
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|
902 * - rdman_redraw_all() |
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135
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|
903 * - rdman_redraw_changed() |
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|
904 * = draw_shapes_in_areas() |
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|
905 */ |
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|
906 |
15
c2ce186a5c37
X_main uses rdman_redraw_all()
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parents:
14
diff
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|
907 int rdman_redraw_all(redraw_man_t *rdman) { |
138
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|
908 cairo_surface_t *surface; |
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parents:
135
diff
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|
909 area_t area; |
29 | 910 int r; |
15
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parents:
14
diff
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|
911 |
138
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Make shapes and coords drawed in post-order of tree.
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|
912 area.x = area.y = 0; |
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parents:
135
diff
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|
913 #ifndef UNITTEST |
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parents:
135
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|
914 surface = cairo_get_target(rdman->cr); |
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parents:
135
diff
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|
915 area.w = cairo_image_surface_get_width(surface); |
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parents:
135
diff
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|
916 area.h = cairo_image_surface_get_height(surface); |
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parents:
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diff
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|
917 #else |
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Make shapes and coords drawed in post-order of tree.
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135
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|
918 area.w = 1024; |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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135
diff
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|
919 area.h = 1024; |
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Make shapes and coords drawed in post-order of tree.
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parents:
135
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|
920 #endif |
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135
diff
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|
921 add_dirty_area(rdman, &area); |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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135
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|
922 |
9f4fc9ecfd1f
Make shapes and coords drawed in post-order of tree.
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parents:
135
diff
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|
923 r = rdman_redraw_changed(rdman); |
29 | 924 if(r != OK) |
925 return ERR; | |
16
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A simple animation using rdman_redraw_changed().
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parents:
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diff
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|
926 |
13 | 927 return OK; |
12 | 928 } |
929 | |
37 | 930 int rdman_redraw_area(redraw_man_t *rdman, co_aix x, co_aix y, |
931 co_aix w, co_aix h) { | |
932 area_t area; | |
933 int r; | |
934 | |
935 area.x = x; | |
936 area.y = y; | |
937 area.w = w; | |
938 area.h = h; | |
939 add_dirty_area(rdman, &area); | |
940 | |
941 r = rdman_redraw_changed(rdman); | |
942 | |
943 return r; | |
944 } | |
945 | |
139
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Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
946 geo_t *rdman_geos(redraw_man_t *rdman, geo_t *last) { |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
947 geo_t *next; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
948 coord_t *coord; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
949 |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
950 if(last == NULL) { |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
changeset
|
951 coord = rdman->root_coord; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
952 while(coord != NULL && STAILQ_HEAD(coord->members) == NULL) |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
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|
953 coord = preorder_coord_subtree(rdman->root_coord, coord); |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
changeset
|
954 if(coord == NULL) |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
955 return NULL; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
956 return STAILQ_HEAD(coord->members); |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
957 } |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
958 |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
changeset
|
959 coord = last->shape->coord; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
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|
960 next = STAILQ_NEXT(geo_t, coord_next, last); |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
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|
961 while(next == NULL) { |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
diff
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|
962 coord = preorder_coord_subtree(rdman->root_coord, coord); |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
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|
963 if(coord == NULL) |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
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|
964 return NULL; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
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|
965 next = STAILQ_HEAD(coord->members); |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
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|
966 } |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
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|
967 return next; |
1695a4b02b14
Members of coords are geos instead of shapes, now.
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parents:
138
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|
968 } |
1695a4b02b14
Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents:
138
diff
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|
969 |
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
|
970 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
|
971 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
|
972 |
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
|
973 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
|
974 |
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
|
975 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
|
976 } |
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
|
977 |
18
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
978 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
|
979 shnode_t *node; |
0f3baa488a62
Support solid color paint for fill.
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parents:
17
diff
changeset
|
980 |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
981 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
|
982 if(node) { |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
983 node->shape = shape; |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
984 node->next = NULL; |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
985 } |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
986 return node; |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
987 } |
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
changeset
|
988 |
135 | 989 /*! \page dirty Dirty geo, coord, and area. |
990 * | |
991 * \section dirty_of_ego Dirty of geo | |
16
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A simple animation using rdman_redraw_changed().
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parents:
15
diff
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|
992 * A geo is dirty when any of the shape, size or positions is changed. |
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A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
993 * It's geo and positions should be recomputed before drawing. So, |
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
994 * dirty geos are marked as dirty and put into dirty_geos list. |
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A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
995 * 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
|
996 * size, and positions. |
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A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
997 * |
135 | 998 * \section dirty_of_coord Dirty of coord |
16
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
999 * A coord is dirty when it's transformation matrix being changed. |
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
|
1000 * 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
|
1001 * 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
|
1002 * 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
|
1003 * 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
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|
1004 * all these member geos will be recomputed for computing new current |
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
1005 * 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
|
1006 * 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
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|
1007 * 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
|
1008 * clean in preorder of tree traversal. The dirty_coords list |
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
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|
1009 * are sorted to keep the order before cleaning. |
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
changeset
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1010 * Whenever a coord is marked dirty and put into dirty_coords list, |
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
1011 * all it's children should also be marked and put. |
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A simple animation using rdman_redraw_changed().
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parents:
15
diff
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|
1012 * |
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A simple animation using rdman_redraw_changed().
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parents:
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diff
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1013 * The procedure of clean coords comprises recomputing aggregate |
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A simple animation using rdman_redraw_changed().
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parents:
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|
1014 * tranform matrix and area where members spreading in. |
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A simple animation using rdman_redraw_changed().
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parents:
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diff
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1015 * |
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A simple animation using rdman_redraw_changed().
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1016 * The list is inspected before drawing to recompute new shape, size, |
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1017 * and positions of member geos of coords in the list. The drity |
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1018 * flag of member geos will be clean. |
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1019 * |
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1020 * Clean coords should be performed before clean geos, since clean |
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1021 * coords will also clean member geos. |
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1022 */ |
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1023 |
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1024 /* |
12 | 1025 * When redraw an area, the affected elements may also extend to |
1026 * outside of the area. Since the order of drawing will change | |
1027 * the result, it will infect more and more elements to keep | |
1028 * drawing order althrough they are overlaid directly with | |
1029 * specified area. | |
1030 * | |
1031 * To fix the problem, we don't extend the set of redrawing to | |
1032 * elements they are not overliad directly. The redrawing is | |
1033 * performed on a temporary surface, clipped to fit the area, and | |
1034 * update only specified area on the destinate surface. | |
1035 */ | |
1036 | |
1037 /* | |
1038 * To accelerate speed of transformation, when a matrix changed, | |
1039 * transformation should be aggregated and computed in a loop. | |
1040 * It can get intereset of higher hit rate of cache. | |
1041 * - shapes prvoide list of positions needed to be transformed. | |
1042 * - redraw_man transforms positions from shapes. | |
1043 * - shapes drawing with result of transforms. | |
1044 * - shapes should be called to give them a chance to update geometries. | |
1045 */ | |
1046 | |
13 | 1047 /* |
1048 * functions: | |
1049 * - redraw all | |
1050 * - redraw changed | |
1051 */ | |
1052 | |
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1053 /* Implment factory and strategy functions for observers and subjects. |
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1054 */ |
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1055 static subject_t *ob_subject_alloc(ob_factory_t *factory) { |
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1056 redraw_man_t *rdman; |
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1057 subject_t *subject; |
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1058 |
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1059 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
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1060 subject = elmpool_elm_alloc(rdman->subject_pool); |
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1061 |
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1062 return subject; |
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1063 } |
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1064 |
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1065 static void ob_subject_free(ob_factory_t *factory, subject_t *subject) { |
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1066 redraw_man_t *rdman; |
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1067 |
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1068 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
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1069 elmpool_elm_free(rdman->subject_pool, subject); |
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1070 } |
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1071 |
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1072 static observer_t *ob_observer_alloc(ob_factory_t *factory) { |
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1073 redraw_man_t *rdman; |
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1074 observer_t *observer; |
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1075 |
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1076 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
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1077 observer = elmpool_elm_alloc(rdman->observer_pool); |
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1078 |
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1079 return observer; |
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1080 } |
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1081 |
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1082 static void ob_observer_free(ob_factory_t *factory, observer_t *observer) { |
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1083 redraw_man_t *rdman; |
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1084 |
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1085 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
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1086 elmpool_elm_free(rdman->observer_pool, observer); |
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1087 } |
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1088 |
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1089 static subject_t *ob_get_parent_subject(ob_factory_t *factory, |
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1090 subject_t *cur_subject) { |
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1091 redraw_man_t *rdman; |
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1092 coord_t *coord, *parent_coord; |
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1093 geo_t *geo; |
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1094 subject_t *parent; |
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1095 |
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1096 rdman = MEM2OBJ(factory, redraw_man_t, ob_factory); |
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1097 switch(cur_subject->obj_type) { |
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1098 case OBJT_GEO: |
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1099 geo = (geo_t *)cur_subject->obj; |
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1100 parent_coord = geo->shape->coord; |
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1101 parent = parent_coord->mouse_event; |
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1102 break; |
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1103 case OBJT_COORD: |
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1104 coord = (coord_t *)cur_subject->obj; |
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1105 parent_coord = coord->parent; |
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1106 if(parent_coord == NULL) { |
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1107 parent = NULL; |
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1108 break; |
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1109 } |
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1110 parent = parent_coord->mouse_event; |
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1111 break; |
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1112 default: |
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1113 parent = NULL; |
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1114 break; |
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1115 } |
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1116 |
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1117 return parent; |
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1118 } |
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1119 |
12 | 1120 #ifdef UNITTEST |
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1121 /* Test cases */ |
12 | 1122 |
1123 #include <CUnit/Basic.h> | |
19 | 1124 #include "paint.h" |
12 | 1125 |
1126 struct _sh_dummy { | |
1127 shape_t shape; | |
1128 co_aix x, y; | |
1129 co_aix w, h; | |
119 | 1130 int trans_cnt; |
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1131 int draw_cnt; |
12 | 1132 }; |
1133 | |
1134 shape_t *sh_dummy_new(co_aix x, co_aix y, co_aix w, co_aix h) { | |
1135 sh_dummy_t *dummy; | |
1136 | |
1137 dummy = (sh_dummy_t *)malloc(sizeof(sh_dummy_t)); | |
1138 if(dummy == NULL) | |
1139 return NULL; | |
1140 | |
17
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1141 memset(dummy, 0, sizeof(sh_dummy_t)); |
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1142 |
12 | 1143 dummy->x = x; |
1144 dummy->y = y; | |
1145 dummy->w = w; | |
1146 dummy->h = h; | |
119 | 1147 dummy->trans_cnt = 0; |
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1148 dummy->draw_cnt = 0; |
12 | 1149 |
1150 return (shape_t *)dummy; | |
1151 } | |
1152 | |
1153 void sh_dummy_free(shape_t *sh) { | |
1154 free(sh); | |
1155 } | |
1156 | |
1157 void sh_dummy_transform(shape_t *shape) { | |
1158 sh_dummy_t *dummy = (sh_dummy_t *)shape; | |
1159 co_aix poses[2][2]; | |
1160 co_aix x1, y1, x2, y2; | |
1161 | |
1162 if(shape->geo && shape->coord) { | |
1163 x1 = dummy->x; | |
1164 y1 = dummy->y; | |
1165 x2 = x1 + dummy->w; | |
1166 y2 = y1 + dummy->h; | |
1167 | |
1168 coord_trans_pos(shape->coord, &x1, &y1); | |
1169 coord_trans_pos(shape->coord, &x2, &y2); | |
1170 poses[0][0] = x1; | |
1171 poses[0][1] = y1; | |
1172 poses[1][0] = x2; | |
1173 poses[1][1] = y2; | |
1174 | |
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1175 if(shape->geo) |
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1176 geo_from_positions(shape->geo, 2, poses); |
12 | 1177 } |
119 | 1178 dummy->trans_cnt++; |
12 | 1179 } |
1180 | |
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1181 void sh_dummy_fill(shape_t *shape, cairo_t *cr) { |
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1182 sh_dummy_t *dummy; |
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1183 |
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1184 dummy = (sh_dummy_t *)shape; |
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1185 dummy->draw_cnt++; |
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1186 } |
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1187 |
19 | 1188 static void dummy_paint_prepare(paint_t *paint, cairo_t *cr) { |
1189 } | |
1190 | |
1191 static void dummy_paint_free(paint_t *paint) { | |
1192 if(paint) | |
1193 free(paint); | |
1194 } | |
1195 | |
1196 paint_t *dummy_paint_new(redraw_man_t *rdman) { | |
1197 paint_t *paint; | |
1198 | |
1199 paint = (paint_t *)malloc(sizeof(paint_t)); | |
1200 if(paint == NULL) | |
1201 return NULL; | |
1202 | |
1203 paint_init(paint, dummy_paint_prepare, dummy_paint_free); | |
1204 | |
1205 return paint; | |
1206 } | |
1207 | |
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1208 void test_rdman_redraw_changed(void) { |
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1209 coord_t *coords[3]; |
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1210 shape_t *shapes[3]; |
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1211 sh_dummy_t **dummys; |
19 | 1212 paint_t *paint; |
17
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1213 redraw_man_t *rdman; |
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1214 redraw_man_t _rdman; |
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1215 int i; |
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1216 |
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1217 dummys = (sh_dummy_t **)shapes; |
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1218 |
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1219 rdman = &_rdman; |
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1220 redraw_man_init(rdman, NULL, NULL); |
19 | 1221 paint = dummy_paint_new(rdman); |
17
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1222 for(i = 0; i < 3; i++) { |
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1223 shapes[i] = sh_dummy_new(0, 0, 50, 50); |
19 | 1224 rdman_paint_fill(rdman, paint, shapes[i]); |
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1225 coords[i] = rdman_coord_new(rdman, rdman->root_coord); |
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1226 coords[i]->matrix[2] = 10 + i * 100; |
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1227 coords[i]->matrix[5] = 10 + i * 100; |
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1228 rdman_coord_changed(rdman, coords[i]); |
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1229 rdman_add_shape(rdman, shapes[i], coords[i]); |
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1230 } |
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1231 rdman_redraw_all(rdman); |
119 | 1232 CU_ASSERT(dummys[0]->trans_cnt == 1); |
1233 CU_ASSERT(dummys[1]->trans_cnt == 1); | |
1234 CU_ASSERT(dummys[2]->trans_cnt == 1); | |
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1235 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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1236 CU_ASSERT(dummys[1]->draw_cnt == 1); |
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1237 CU_ASSERT(dummys[2]->draw_cnt == 1); |
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1238 |
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1239 coords[2]->matrix[2] = 100; |
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1240 coords[2]->matrix[5] = 100; |
119 | 1241 rdman_coord_changed(rdman, coords[0]); |
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1242 rdman_coord_changed(rdman, coords[2]); |
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1243 rdman_redraw_changed(rdman); |
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1244 |
119 | 1245 CU_ASSERT(dummys[0]->draw_cnt == 2); |
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1246 CU_ASSERT(dummys[1]->draw_cnt == 2); |
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1247 CU_ASSERT(dummys[2]->draw_cnt == 2); |
19 | 1248 |
1249 paint->free(paint); | |
1250 redraw_man_destroy(rdman); | |
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1251 } |
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1252 |
12 | 1253 CU_pSuite get_redraw_man_suite(void) { |
1254 CU_pSuite suite; | |
1255 | |
1256 suite = CU_add_suite("Suite_redraw_man", NULL, NULL); | |
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1257 CU_ADD_TEST(suite, test_rdman_redraw_changed); |
12 | 1258 |
1259 return suite; | |
1260 } | |
1261 | |
1262 #endif /* UNITTEST */ |