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annotate include/mb_redraw_man.h @ 636:cc39cf3f623c

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paint_image_t for nodejs. It is still can not be used. Waiting for binding of image loader and shape_image.
author Thinker K.F. Li <thinker@branda.to>
date Mon, 26 Jul 2010 09:19:03 +0800
parents b6b3dbeaedf3
children cbad519226d4
rev   line source
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1 #ifndef __REDRAW_MAN_H_
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2 #define __REDRAW_MAN_H_
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4 #include "mb_graph_engine.h"
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5 #include "mb_tools.h"
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6 #include "mb_types.h"
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7 #include "mb_observer.h"
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8 #include "mb_img_ldr.h"
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9 #include "mb_timer.h"
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11 typedef struct _redraw_man redraw_man_t;
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13 typedef void (*free_func_t)(redraw_man_t *rdman, void *obj);
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14 struct _free_obj {
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15 void *obj;
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16 free_func_t free_func;
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17 };
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18 typedef struct _free_obj free_obj_t;
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19 struct _free_objs {
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20 int num, max;
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21 free_obj_t *objs;
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22 };
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23 typedef struct _free_objs free_objs_t;
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25 DARRAY(coords, coord_t *);
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26 DARRAY(geos, geo_t *);
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27
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28 /*! \brief Manage redrawing of shapes (graphic elements).
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29 *
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30 * Every coord_t and geo_t object is assigned with a unique
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31 * incremental order. The order is a unsigned integer.
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32 * Every time a new coord_t or geo_t object is added, it is
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33 * assigned with a order number that 1 bigger than last one
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34 * until reaching maximum of unsigned integer.
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35 * When a maximum is meet, all coord_t or geo_t objects
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36 * are reasigned with a new order number from 1. It means
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37 * order numbers that have been assigned and then removed
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38 * later are recycled.
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39 *
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40 * Dirty flag is clear when the transformation matrix of a coord
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41 * object been recomputed or when a geo_t objects been redrawed.
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42 */
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43 struct _redraw_man {
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44 unsigned int next_coord_order;
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45 int n_coords;
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46 coord_t *root_coord;
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47
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48 elmpool_t *geo_pool;
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49 elmpool_t *coord_pool;
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50 elmpool_t *shnode_pool;
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51 elmpool_t *observer_pool;
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52 elmpool_t *subject_pool;
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53 elmpool_t *paint_color_pool;
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54 elmpool_t *pent_pool;
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55 elmpool_t *coord_canvas_pool;
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56
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57 coords_t dirty_coords;
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58 coords_t dirty_pcache_area_coords;
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59 geos_t dirty_geos;
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60 int n_dirty_areas; /*!< \brief Number of all dirty areas. */
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62 geos_t gen_geos;
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63 coords_t zeroing_coords;
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65 STAILQ(shape_t) shapes; /*!< \brief All managed shapes. */
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66 STAILQ(paint_t) paints; /*!< \brief All managed paints. */
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67
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68 free_objs_t free_objs;
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69
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70 mbe_t *cr;
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71 mbe_t *backend;
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72
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73 ob_factory_t ob_factory;
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74
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75 subject_t *redraw; /*!< \brief Notified after redrawing. */
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76 subject_t *addrm_monitor; /*!< \brief Monitor adding/removing observers
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77 * to/from mouse event subjects.
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78 * \see addrm_monitor_hdlr()
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79 */
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80 mb_obj_t *last_mouse_over;
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81 void *rt; /*!< \brief This is a pointer to the current
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82 * graphic backend.
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83 * \see rdman_attach_backend()
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84 */
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85 mb_prop_store_t props;
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86 mb_img_ldr_t *img_ldr; /*!< \brief Image Loader.
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87 * This is initialized by backend.
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88 */
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89 co_aix w, h; /*!< \brief Size of viewport
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90 * This is initialized by backend.
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91 */
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92 };
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93
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94 extern int redraw_man_init(redraw_man_t *rdman, mbe_t *cr,
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95 mbe_t *backend);
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96 extern void redraw_man_destroy(redraw_man_t *rdman);
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97 extern int rdman_find_overlaid_shapes(redraw_man_t *rdman,
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98 geo_t *geo,
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99 geo_t ***overlays);
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100 extern int rdman_add_shape(redraw_man_t *rdman,
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101 shape_t *shape, coord_t *coord);
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102 /*! \brief Make a shape been managed by a redraw manager. */
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103 #define rdman_shape_man(rdman, shape) \
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104 do { \
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105 mb_prop_store_init(&((mb_obj_t *)(shape))->props, \
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106 (rdman)->pent_pool); \
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107 STAILQ_INS_TAIL(rdman->shapes, shape_t, sh_next, shape); \
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108 if(rdman->last_mouse_over == (mb_obj_t *)(shape)) \
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109 rdman->last_mouse_over = NULL; \
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110 } while(0)
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111 extern int rdman_shape_free(redraw_man_t *rdman, shape_t *shape);
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112
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113 extern int rdman_paint_free(redraw_man_t *rdman, paint_t *paint);
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114
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115 extern coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent);
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116 extern int rdman_coord_free(redraw_man_t *rdman, coord_t *coord);
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117 extern int rdman_coord_subtree_free(redraw_man_t *rdman, coord_t *subtree);
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118 extern int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord);
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119 extern int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape);
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120 extern int rdman_redraw_changed(redraw_man_t *rdman);
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121 extern int rdman_redraw_all(redraw_man_t *rdman);
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122 extern int rdman_redraw_area(redraw_man_t *rdman, co_aix x, co_aix y,
943acee7f346 update exposed area
Thinker K.F. Li <thinker@branda.to>
parents: 30
diff changeset
123 co_aix w, co_aix h);
139
1695a4b02b14 Members of coords are geos instead of shapes, now.
Thinker K.F. Li <thinker@branda.to>
parents: 133
diff changeset
124 extern geo_t *rdman_geos(redraw_man_t *rdman, geo_t *last);
235
65cabbdd5284 termporary revision
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parents: 232
diff changeset
125 #define rdman_shapes(rdman, last_shape) \
65cabbdd5284 termporary revision
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parents: 232
diff changeset
126 geo_get_shape_safe(rdman_geos(rdman, sh_get_geo_safe(last_shape)))
30
e06a4a667ce2 Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents: 24
diff changeset
127 extern int rdman_force_clean(redraw_man_t *rdman);
18
0f3baa488a62 Support solid color paint for fill.
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parents: 16
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128 extern shnode_t *shnode_new(redraw_man_t *rdman, shape_t *shape);
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parents: 16
diff changeset
129 #define shnode_free(rdman, node) elmpool_elm_free((rdman)->shnode_pool, node)
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parents: 16
diff changeset
130 #define shnode_list_free(rdman, q) \
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parents: 16
diff changeset
131 do { \
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parents: 16
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132 shnode_t *__node, *__last; \
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parents: 16
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133 __last = STAILQ_HEAD(q); \
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parents: 16
diff changeset
134 if(__last == NULL) break; \
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parents: 16
diff changeset
135 for(__node = STAILQ_NEXT(shnode_t, next, __last); \
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parents: 16
diff changeset
136 __node != NULL; \
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parents: 16
diff changeset
137 __node = STAILQ_NEXT(shnode_t, next, __node)) { \
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parents: 16
diff changeset
138 shnode_free(rdman, __last); \
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parents: 16
diff changeset
139 __last = __node; \
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parents: 16
diff changeset
140 } \
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parents: 16
diff changeset
141 shnode_free(rdman, __last); \
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parents: 16
diff changeset
142 } while(0)
22
8fcf2d878ecd shapes with stroke
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parents: 18
diff changeset
143 #define _rdman_paint_child(rdman, paint, shape) \
18
0f3baa488a62 Support solid color paint for fill.
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parents: 16
diff changeset
144 do { \
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parents: 16
diff changeset
145 shnode_t *__node; \
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parents: 16
diff changeset
146 if((shape)->fill != (paint) && \
0f3baa488a62 Support solid color paint for fill.
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parents: 16
diff changeset
147 (shape)->stroke != (paint)) { \
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parents: 16
diff changeset
148 __node = shnode_new(rdman, shape); \
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parents: 16
diff changeset
149 STAILQ_INS_TAIL((paint)->members, \
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parents: 16
diff changeset
150 shnode_t, next, __node); \
0f3baa488a62 Support solid color paint for fill.
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parents: 16
diff changeset
151 } \
22
8fcf2d878ecd shapes with stroke
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parents: 18
diff changeset
152 } while(0)
159
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
Thinker K.F. Li <thinker@branda.to>
parents: 158
diff changeset
153 extern void _rdman_paint_real_remove_child(redraw_man_t *rdman,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
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parents: 158
diff changeset
154 paint_t *paint,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
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parents: 158
diff changeset
155 shape_t *shape);
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
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parents: 158
diff changeset
156 #define _rdman_paint_remove_child(rdman, paint, shape) \
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
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parents: 158
diff changeset
157 do { \
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
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parents: 158
diff changeset
158 if((shape)->fill == (shape)->stroke && \
490
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
Thinker K.F. Li <thinker@branda.to>
parents: 462
diff changeset
159 (shape)->stroke == (paint)) \
159
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
Thinker K.F. Li <thinker@branda.to>
parents: 158
diff changeset
160 break; \
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
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parents: 158
diff changeset
161 _rdman_paint_real_remove_child(rdman, paint, shape); \
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
Thinker K.F. Li <thinker@branda.to>
parents: 158
diff changeset
162 } while(0)
490
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
163 #define rdman_paint_fill(rdman, paint, shape) \
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parents: 462
diff changeset
164 do { \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
165 if((shape)->fill == paint) \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
166 break; \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
167 if((shape)->fill) \
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parents: 462
diff changeset
168 _rdman_paint_remove_child(rdman, (shape)->fill, \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
169 shape); \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
170 if(paint) \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
171 _rdman_paint_child(rdman, paint, shape); \
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parents: 462
diff changeset
172 (shape)->fill = paint; \
18
0f3baa488a62 Support solid color paint for fill.
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parents: 16
diff changeset
173 } while(0)
490
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
174 #define rdman_paint_stroke(rdman, paint, shape) \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
175 do { \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
Thinker K.F. Li <thinker@branda.to>
parents: 462
diff changeset
176 if((shape)->stroke == paint) \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
Thinker K.F. Li <thinker@branda.to>
parents: 462
diff changeset
177 break; \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
178 if((shape)->stroke) \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
179 _rdman_paint_remove_child(rdman, (shape)->stroke, \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
180 shape); \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
181 if(paint) \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
182 _rdman_paint_child(rdman, paint, shape); \
5d0b2761f89c Reset stroke and fill for shapes when a paint is freed.
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parents: 462
diff changeset
183 (shape)->stroke = paint; \
22
8fcf2d878ecd shapes with stroke
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parents: 18
diff changeset
184 } while(0)
18
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parents: 16
diff changeset
185 extern int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint);
12
79e9edf4c00a Add redraw manager
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parents:
diff changeset
186
30
e06a4a667ce2 Accept mouse/pointer event and hint the shape that the pointer is over.
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parents: 24
diff changeset
187 extern shape_t *find_shape_at_pos(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: 24
diff changeset
188 co_aix x, co_aix y, int *in_stroke);
232
527894c2ad39 Add functions for collision test.
Thinker K.F. Li <thinker@branda.to>
parents: 231
diff changeset
189 extern int mb_obj_pos_is_in(redraw_man_t *rdman, mb_obj_t *obj,
527894c2ad39 Add functions for collision test.
Thinker K.F. Li <thinker@branda.to>
parents: 231
diff changeset
190 co_aix x, co_aix y, int *in_stroke);
253
99a9cca4bbd0 Fix typo in mb_redraw_man.h
Thinker K.F. Li <thinker@branda.to>
parents: 249
diff changeset
191 extern int mb_objs_are_overlay(redraw_man_t *rdman,
99a9cca4bbd0 Fix typo in mb_redraw_man.h
Thinker K.F. Li <thinker@branda.to>
parents: 249
diff changeset
192 mb_obj_t *obj1, mb_obj_t *obj2);
73
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 37
diff changeset
193 #define rdman_get_ob_factory(rdman) (&(rdman)->ob_factory)
154
6ce68c1f7405 Tank can fire bullet.
Thinker K.F. Li <thinker@branda.to>
parents: 146
diff changeset
194 #define rdman_get_redraw_subject(rdman) ((rdman)->redraw)
224
29e1b2bffe4c X backend only sent EVT_MOUSE_MOVE_RAW to MadButterfly.
Thinker K.F. Li <thinker@branda.to>
parents: 186
diff changeset
195 #define rdman_get_root(rdman) ((rdman)->root_coord)
235
65cabbdd5284 termporary revision
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parents: 232
diff changeset
196 #define rdman_get_cr(rdman) ((rdman)->cr)
65cabbdd5284 termporary revision
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parents: 232
diff changeset
197 #define rdman_get_gen_geos(rdman) (&(rdman)->gen_geos)
65cabbdd5284 termporary revision
Thinker K.F. Li <thinker@branda.to>
parents: 232
diff changeset
198 extern int rdman_add_gen_geos(redraw_man_t *rdman, geo_t *geo);
65cabbdd5284 termporary revision
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parents: 232
diff changeset
199 #define rdman_get_shape_gl(rdman, idx) \
65cabbdd5284 termporary revision
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parents: 232
diff changeset
200 geo_get_shape(rdman_get_gen_geos(rdman)->ds[idx])
65cabbdd5284 termporary revision
Thinker K.F. Li <thinker@branda.to>
parents: 232
diff changeset
201 #define rdman_add_shape_gl(rdman, shape) \
65cabbdd5284 termporary revision
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parents: 232
diff changeset
202 rdman_add_gen_geos(rdman, sh_get_geo(shape))
65cabbdd5284 termporary revision
Thinker K.F. Li <thinker@branda.to>
parents: 232
diff changeset
203 #define rdman_shape_gl_len(rdman) \
65cabbdd5284 termporary revision
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parents: 232
diff changeset
204 rdman_get_gen_geos(rdman)->num
65cabbdd5284 termporary revision
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parents: 232
diff changeset
205 #define rdman_clear_shape_gl(rdman) \
65cabbdd5284 termporary revision
Thinker K.F. Li <thinker@branda.to>
parents: 232
diff changeset
206 DARRAY_CLEAN(rdman_get_gen_geos(rdman))
260
29acbd8a0dd0 Integrate sh_image with svg2code.py.
Thinker K.F. Li <thinker@branda.to>
parents: 257
diff changeset
207 #define rdman_prop_store(rdman) ((rdman)->props)
29acbd8a0dd0 Integrate sh_image with svg2code.py.
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parents: 257
diff changeset
208 #define rdman_img_ldr(rdman) ((rdman)->img_ldr)
265
b42ee279669e Change function name and add comments.
Thinker K.F. Li <thinker@branda.to>
parents: 260
diff changeset
209 #define rdman_set_img_ldr(rdman, ldr) \
b42ee279669e Change function name and add comments.
Thinker K.F. Li <thinker@branda.to>
parents: 260
diff changeset
210 do { (rdman)->img_ldr = ldr; } while(0)
30
e06a4a667ce2 Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents: 24
diff changeset
211
249
ab8284c8dcee * Add loopback reference from rdman to the backend. This is only required when we need to acquire the tman for the animation. This is not a reasonable arrangement since the animation should be backend transparent. We should not touch the backend directly from the animation. We should relocate the tman to the rdman.
wycc
parents: 235
diff changeset
212 /*! \brief Attach backend to the redraw manager so that we can hide the backend from the users.
ab8284c8dcee * Add loopback reference from rdman to the backend. This is only required when we need to acquire the tman for the animation. This is not a reasonable arrangement since the animation should be backend transparent. We should not touch the backend directly from the animation. We should relocate the tman to the rdman.
wycc
parents: 235
diff changeset
213 *
ab8284c8dcee * Add loopback reference from rdman to the backend. This is only required when we need to acquire the tman for the animation. This is not a reasonable arrangement since the animation should be backend transparent. We should not touch the backend directly from the animation. We should relocate the tman to the rdman.
wycc
parents: 235
diff changeset
214 */
ab8284c8dcee * Add loopback reference from rdman to the backend. This is only required when we need to acquire the tman for the animation. This is not a reasonable arrangement since the animation should be backend transparent. We should not touch the backend directly from the animation. We should relocate the tman to the rdman.
wycc
parents: 235
diff changeset
215 #define rdman_attach_backend(rdman,backend) (((rdman)->rt)=(backend))
227
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
216 /*! \brief Load sprite dymanicly from the shared object module.
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
217 *
260
29acbd8a0dd0 Integrate sh_image with svg2code.py.
Thinker K.F. Li <thinker@branda.to>
parents: 257
diff changeset
218 * The search path can be changed by sprite_set_search_path. The name
29acbd8a0dd0 Integrate sh_image with svg2code.py.
Thinker K.F. Li <thinker@branda.to>
parents: 257
diff changeset
219 * can have a relative path in the front of it.
29acbd8a0dd0 Integrate sh_image with svg2code.py.
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parents: 257
diff changeset
220 * This function will search the object in the current working directory
29acbd8a0dd0 Integrate sh_image with svg2code.py.
Thinker K.F. Li <thinker@branda.to>
parents: 257
diff changeset
221 * and then search the system search path.
227
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
222 */
356
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new().
Thinker K.F. Li <thinker@branda.to>
parents: 314
diff changeset
223 extern mb_sprite_t *sprite_load(const char *name, redraw_man_t *rdman,
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new().
Thinker K.F. Li <thinker@branda.to>
parents: 314
diff changeset
224 coord_t *root);
227
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
225
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
226 /*! \brief Set the search path of dymanic object loading.
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
227 *
a6e559fb76d7 Add dynamic loading function for sprite
wycc
parents: 224
diff changeset
228 */
356
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new().
Thinker K.F. Li <thinker@branda.to>
parents: 314
diff changeset
229 extern void sprite_set_search_path(char *path);
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new().
Thinker K.F. Li <thinker@branda.to>
parents: 314
diff changeset
230
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new().
Thinker K.F. Li <thinker@branda.to>
parents: 314
diff changeset
231 extern paint_t *rdman_img_ldr_load_paint(redraw_man_t *rdman,
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new().
Thinker K.F. Li <thinker@branda.to>
parents: 314
diff changeset
232 const char *img_id);
12
79e9edf4c00a Add redraw manager
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
233
462
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
234 typedef void (*mb_eventcb_t )(int fd,void *arg);
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
235 #define MONITOR_READ 1
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
236 #define MONITOR_WRITE 2
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
237
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
238 /*! \brief The backend engine mb_backend_t is used to define the interface to realize the MB.
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
239 *
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
240 * A backend is used to receive events from the system. The MB does not define the backend by itself.
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
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241 * Instead, it define an interface which allow the lower layer to implement the event system. Each
af4b506ad56f Add backend layer to seperate the backend with the MBAF. Currently, X is the only backend. If we have more than one backend, we need to modify the Makefile to sleect the backend or implement a backend selection mechanism in the runtime.
wycc@122-116-38-188.HINET-IP.hinet.net
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242 * backend need to provides the following events.
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243 *
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244 * - keyboard event
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wycc@122-116-38-188.HINET-IP.hinet.net
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245 * - timer event
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wycc@122-116-38-188.HINET-IP.hinet.net
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246 * - image loader(?)
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247 * - render manager(?)
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248 */
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249 typedef struct {
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250
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251 void *(*init)(char *display,int w,int h);
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252 void (*free)(void *be);
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253 void (*add_event)(void *be,int type, int fd, mb_eventcb_t f,void *arg);
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254 void (*remove_event)(void *be,int type, int fd);
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255 void (*loop)(void *be);
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256 subject_t *(*kbevents)(void *be);
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257 redraw_man_t *(*rdman)(void *be);
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258 mb_tman_t *(*tman)(void *be);
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259 ob_factory_t *(*factory)(void *be);
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260 mb_img_ldr_t *(*loader)(void *be);
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261 } mb_backend_t;
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262
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263 extern mb_backend_t backend;
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264
12
79e9edf4c00a Add redraw manager
Thinker K.F. Li <thinker@branda.to>
parents:
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265 #endif /* __REDRAW_MAN_H_ */