Mercurial > MadButterfly

annotate src/redraw_man.h @ 149:52f7566777f9

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author Thinker K.F. Li <thinker@branda.to>
date Thu, 25 Sep 2008 11:29:42 +0800
parents e96a584487af
children 6ce68c1f7405
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 <cairo.h>
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5 #include "tools.h"
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6 #include "mb_types.h"
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7 #include "observer.h"
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9 /*! \brief Manage redrawing of shapes (graphic elements).
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10 *
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11 * Every coord_t and geo_t object is assigned with a unique
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12 * incremental order. The order is a unsigned integer.
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13 * Every time a new coord_t or geo_t object is added, it is
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14 * assigned with a order number that 1 bigger than last one
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15 * until reaching maximum of unsigned integer.
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16 * When a maximum is meet, all coord_t or geo_t objects
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17 * are reasigned with a new order number from 1. It means
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18 * order numbers that have been assigned and then removed
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19 * later are recycled.
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20 *
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21 * Dirty flag is clear when the transformation matrix of a coord
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22 * object been recomputed or when a geo_t objects been redrawed.
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23 */
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24 typedef struct _redraw_man {
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25 unsigned int next_coord_order;
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26 int n_coords;
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27 coord_t *root_coord;
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28
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29 elmpool_t *geo_pool;
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30 elmpool_t *coord_pool;
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31 elmpool_t *shnode_pool;
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32 elmpool_t *observer_pool;
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33 elmpool_t *subject_pool;
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34 elmpool_t *paint_color_pool;
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35
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36 int max_dirty_coords;
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37 int n_dirty_coords;
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38 coord_t **dirty_coords; /*!< coordinates their transform
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39 * matric are chagned.
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40 */
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41
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42 int max_dirty_geos;
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43 int n_dirty_geos;
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44 geo_t **dirty_geos; /*!< geometries that need re-computed */
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45
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46 int max_dirty_areas;
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47 int n_dirty_areas;
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48 area_t **dirty_areas; /*!< \brief are areas need to redraw. */
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49
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50 int max_gen_geos;
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51 int n_gen_geos;
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52 geo_t **gen_geos; /* general geo list (for temporary store) */
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53
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54 cairo_t *cr;
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55 cairo_t *backend;
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56
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57 ob_factory_t ob_factory;
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58 } redraw_man_t;
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60 extern int redraw_man_init(redraw_man_t *rdman, cairo_t *cr,
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61 cairo_t *backend);
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62 extern void redraw_man_destroy(redraw_man_t *rdman);
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63 extern int rdman_find_overlaid_shapes(redraw_man_t *rdman,
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64 geo_t *geo,
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65 geo_t ***overlays);
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66 extern int rdman_add_shape(redraw_man_t *rdman,
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67 shape_t *shape, coord_t *coord);
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68 extern int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape);
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69 extern coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent);
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70 extern int rdman_coord_free(redraw_man_t *rdman, coord_t *coord);
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71 extern int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord);
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72 extern int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape);
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73 extern int rdman_redraw_changed(redraw_man_t *rdman);
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74 extern int rdman_redraw_all(redraw_man_t *rdman);
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75 extern int rdman_redraw_area(redraw_man_t *rdman, co_aix x, co_aix y,
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76 co_aix w, co_aix h);
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77 extern geo_t *rdman_geos(redraw_man_t *rdman, geo_t *last);
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78 extern int rdman_force_clean(redraw_man_t *rdman);
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79 extern shnode_t *shnode_new(redraw_man_t *rdman, shape_t *shape);
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80 #define shnode_free(rdman, node) elmpool_elm_free((rdman)->shnode_pool, node)
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81 #define shnode_list_free(rdman, q) \
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82 do { \
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83 shnode_t *__node, *__last; \
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84 __last = STAILQ_HEAD(q); \
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85 if(__last == NULL) break; \
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86 for(__node = STAILQ_NEXT(shnode_t, next, __last); \
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87 __node != NULL; \
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88 __node = STAILQ_NEXT(shnode_t, next, __node)) { \
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89 shnode_free(rdman, __last); \
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90 __last = __node; \
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91 } \
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92 shnode_free(rdman, __last); \
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93 } while(0)
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94 #define _rdman_paint_child(rdman, paint, shape) \
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95 do { \
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96 shnode_t *__node; \
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97 if((shape)->fill != (paint) && \
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98 (shape)->stroke != (paint)) { \
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99 __node = shnode_new(rdman, shape); \
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100 STAILQ_INS_TAIL((paint)->members, \
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101 shnode_t, next, __node); \
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102 } \
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103 } while(0)
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104 #define rdman_paint_fill(rdman, paint, shape) \
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105 do { \
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106 _rdman_paint_child(rdman, paint, shape); \
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107 shape->fill = paint; \
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108 } while(0)
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109 #define rdman_paint_stroke(rdman, paint, shape) \
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110 do { \
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111 _rdman_paint_child(rdman, paint, shape); \
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112 shape->stroke = paint; \
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113 } while(0)
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114 extern int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint);
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115
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116 extern shape_t *find_shape_at_pos(redraw_man_t *rdman,
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117 co_aix x, co_aix y, int *in_stroke);
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118 #define rdman_get_ob_factory(rdman) (&(rdman)->ob_factory)
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119
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120
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121 #endif /* __REDRAW_MAN_H_ */