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annotate src/redraw_man.h @ 15:c2ce186a5c37

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X_main uses rdman_redraw_all()
author Thinker K.F. Li <thinker@branda.to>
date Fri, 01 Aug 2008 01:40:07 +0800
parents d34232f15863
children e17e12b112c4
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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8 /*! \brief Manage redrawing of shapes (graphic elements).
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9 *
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10 * Every coord_t and geo_t object is assigned with a unique
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11 * incremental order. The order is a unsigned integer.
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12 * Every time a new coord_t or geo_t object is added, it is
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13 * assigned with a order number that 1 bigger than last one
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14 * until reaching maximum of unsigned integer.
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15 * When a maximum is meet, all coord_t or geo_t objects
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16 * are reasigned with a new order number from 1. It means
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17 * order numbers that have been assigned and then removed
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18 * later are recycled.
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19 *
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20 * Dirty flag is clear when the transformation matrix of a coord
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21 * object been recomputed or when a geo_t objects been redrawed.
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22 */
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23 typedef struct _redraw_man {
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24 unsigned int next_geo_order;
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25 int n_geos;
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26 STAILQ(geo_t) all_geos;
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28 unsigned int next_coord_order;
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29 int n_coords;
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30 coord_t *root_coord;
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31
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32 elmpool_t *geo_pool;
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33 elmpool_t *coord_pool;
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35 int max_dirty_coords;
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36 int n_dirty_coords;
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37 coord_t **dirty_coords;
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39 int max_dirty_geos;
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40 int n_dirty_geos;
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41 geo_t **dirty_geos;
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42
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43 int max_dirty_areas;
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44 int n_dirty_areas;
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45 area_t **dirty_areas;
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47 cairo_t *cr;
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48 } redraw_man_t;
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49
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50 extern int redraw_man_init(redraw_man_t *rdman, cairo_t *cr);
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51 extern void redraw_man_destroy(redraw_man_t *rdman);
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52 extern int rdman_find_overlaid_shapes(redraw_man_t *rdman,
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53 geo_t *geo,
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54 geo_t ***overlays);
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55 extern int rdman_add_shape(redraw_man_t *rdman,
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56 shape_t *shape, coord_t *coord);
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57 extern int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape);
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58 extern coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent);
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59 extern int rdman_coord_free(redraw_man_t *rdman, coord_t *coord);
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60 extern int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord);
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61 extern int rdman_redraw_changed(redraw_man_t *rdman);
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62 extern int rdman_redraw_all(redraw_man_t *rdman);
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65 #endif /* __REDRAW_MAN_H_ */