src/redraw_man.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cairo.h>
#include "mb_types.h"
#include "mb_shapes.h"
#include "mb_tools.h"
#include "mb_redraw_man.h"
#include "mb_observer.h"

Go to the source code of this file.

Defines

#define sh_attach_geo(sh, g)
#define sh_detach_geo(sh)
#define sh_get_geo(sh)   ((sh)->geo)
#define sh_attach_coord(sh, coord)   do { (sh)->coord = coord; } while(0)
#define sh_detach_coord(sh)   do { (sh)->coord = NULL; } while(0)
#define rdman_is_dirty(rdman)
#define OK   0
#define ERR   -1
#define ARRAY_EXT_SZ   64
#define SWAP(a, b, t)   do { t c; c = a; a = b; b = c; } while(0)
#define FORCHILDREN(coord, child)
#define NEXT_CHILD(child)   STAILQ_NEXT(coord_t, sibling, child)
#define ADD_CHILD(parent, child)   STAILQ_INS_TAIL((parent)->children, coord_t, sibling, (child))
#define RM_CHILD(parent, child)   STAILQ_REMOVE((parent)->children, coord_t, sibling, (child))
#define FIRST_CHILD(parent)   STAILQ_HEAD((parent)->children)
#define FORMEMBERS(coord, member)
#define NEXT_MEMBER(member)   STAILQ_NEXT(geo_t, coord_next, (member))
#define ADD_MEMBER(coord, member)   STAILQ_INS_TAIL((coord)->members, geo_t, coord_next, (member))
#define RM_MEMBER(coord, member)   STAILQ_REMOVE((coord)->members, geo_t, coord_next, (member))
#define FIRST_MEMBER(coord)   STAILQ_HEAD((coord)->members)
#define FORPAINTMEMBERS(paint, member)
#define RM_PAINTMEMBER(paint, member)   STAILQ_REMOVE((paint)->members, shnode_t, next, member)
#define RM_PAINT(rdman, paint)   STAILQ_REMOVE((rdman)->paints, paint_t, pnt_next, paint)
#define ADD_DATA(sttype, field, v)
 DARRAY to implement dirty & free lists.
#define ASSERT(x)

Functions

static subject_t * ob_subject_alloc (ob_factory_t *factory)
static void ob_subject_free (ob_factory_t *factory, subject_t *subject)
static observer_t * ob_observer_alloc (ob_factory_t *factory)
static void ob_observer_free (ob_factory_t *factory, observer_t *observer)
static subject_t * ob_get_parent_subject (ob_factory_t *factory, subject_t *cur_subject)
static void _insert_sort (void **elms, int num, int off)
 Sort a list of element by a unsigned integer.
 DARRAY_DEFINE (coords, coord_t *)
 DARRAY_DEFINE (geos, geo_t *)
 DARRAY_DEFINE (areas, area_t *)
static int add_dirty_coord (redraw_man_t *rdman, coord_t *coord)
static int add_dirty_geo (redraw_man_t *rdman, geo_t *geo)
static int add_dirty_area (redraw_man_t *rdman, area_t *area)
static int add_free_obj (redraw_man_t *rdman, void *obj, free_func_t free_func)
static void free_free_objs (redraw_man_t *rdman)
static void free_objs_destroy (redraw_man_t *rdman)
static void area_to_positions (area_t *area, co_aix(*poses)[2])
static cairo_t * new_canvas (redraw_man_t *rdman)
static void free_canvas (cairo_t *canvas)
static int geo_off_in_coord (geo_t *geo, coord_t *coord)
static void geo_attach_coord (geo_t *geo, coord_t *coord)
static void geo_detach_coord (geo_t *geo, coord_t *coord)
int redraw_man_init (redraw_man_t *rdman, cairo_t *cr, cairo_t *backend)
void redraw_man_destroy (redraw_man_t *rdman)
int rdman_add_shape (redraw_man_t *rdman, shape_t *shape, coord_t *coord)
int rdman_shape_free (redraw_man_t *rdman, shape_t *shape)
 Remove a shape object from redraw manager.
shnode_t * shnode_new (redraw_man_t *rdman, shape_t *shape)
int rdman_paint_free (redraw_man_t *rdman, paint_t *paint)
void _rdman_paint_real_remove_child (redraw_man_t *rdman, paint_t *paint, shape_t *shape)
coord_t * rdman_coord_new (redraw_man_t *rdman, coord_t *parent)
int rdman_coord_free (redraw_man_t *rdman, coord_t *coord)
 Free a coord of a redraw_man_t object.
int rdman_coord_subtree_free (redraw_man_t *rdman, coord_t *subtree)
int rdman_coord_changed (redraw_man_t *rdman, coord_t *coord)
 Mark a coord is changed.
static int _rdman_shape_changed (redraw_man_t *rdman, shape_t *shape)
int rdman_shape_changed (redraw_man_t *rdman, shape_t *shape)
 Mark a shape is changed.
int rdman_paint_changed (redraw_man_t *rdman, paint_t *paint)
static int is_coord_subtree_hidden (coord_t *coord)
static void clean_shape (shape_t *shape)
static void setup_canvas (redraw_man_t *rdman, coord_t *coord)
 Setup canvas for the coord.
static int clean_coord (redraw_man_t *rdman, coord_t *coord)
static int clean_rdman_coords (redraw_man_t *rdman)
 Clean coord_t objects.
static int clean_rdman_geos (redraw_man_t *rdman)
static int clean_rdman_dirties (redraw_man_t *rdman)
static void set_shape_stroke_param (shape_t *shape, cairo_t *cr)
static void fill_path_preserve (redraw_man_t *rdman)
static void fill_path (redraw_man_t *rdman)
static void stroke_path (redraw_man_t *rdman)
static void draw_shape (redraw_man_t *rdman, cairo_t *cr, shape_t *shape)
static void clean_canvas (cairo_t *cr)
static void clean_canvas_black (cairo_t *cr)
static void make_clip (cairo_t *cr, int n_dirty_areas, area_t **dirty_areas)
static void reset_clip (redraw_man_t *rdman)
static void copy_cr_2_backend (redraw_man_t *rdman, int n_dirty_areas, area_t **dirty_areas)
static int is_geo_in_areas (geo_t *geo, int n_areas, area_t **areas)
static void update_canvas_2_parent (redraw_man_t *rdman, coord_t *coord)
static int draw_coord_shapes_in_areas (redraw_man_t *rdman, coord_t *coord, int n_areas, area_t **areas)
static void draw_shapes_in_areas (redraw_man_t *rdman, int n_areas, area_t **areas)
int rdman_redraw_changed (redraw_man_t *rdman)
 Re-draw all changed shapes or shapes affected by changed coords.
int rdman_redraw_all (redraw_man_t *rdman)
int rdman_redraw_area (redraw_man_t *rdman, co_aix x, co_aix y, co_aix w, co_aix h)
geo_t * rdman_geos (redraw_man_t *rdman, geo_t *last)
int rdman_force_clean (redraw_man_t *rdman)

Define Documentation

#define ADD_CHILD ( parent,
child   )     STAILQ_INS_TAIL((parent)->children, coord_t, sibling, (child))

Definition at line 59 of file redraw_man.c.

#define ADD_DATA ( sttype,
field,
v   ) 

Value:

int r;                                  \
    r = sttype ## _add(&rdman->field, v);       \
    return r == 0? OK: ERR;
DARRAY to implement dirty & free lists.

Use

Definition at line 115 of file redraw_man.c.

#define ADD_MEMBER ( coord,
member   )     STAILQ_INS_TAIL((coord)->members, geo_t, coord_next, (member))

Definition at line 71 of file redraw_man.c.

#define ARRAY_EXT_SZ   64

Definition at line 36 of file redraw_man.c.

#define ASSERT ( x   ) 

Definition at line 367 of file redraw_man.c.

#define ERR   -1

Definition at line 34 of file redraw_man.c.

#define FIRST_CHILD ( parent   )     STAILQ_HEAD((parent)->children)

Definition at line 63 of file redraw_man.c.

#define FIRST_MEMBER ( coord   )     STAILQ_HEAD((coord)->members)

Definition at line 75 of file redraw_man.c.

#define FORCHILDREN ( coord,
child   ) 

Value:

for((child) = STAILQ_HEAD((coord)->children);           \
        (child) != NULL;                                        \
        (child) = STAILQ_NEXT(coord_t, sibling, (child)))

Definition at line 54 of file redraw_man.c.

#define FORMEMBERS ( coord,
member   ) 

Value:

for((member) = STAILQ_HEAD((coord)->members);           \
        (member) != NULL;                                       \
        (member) = STAILQ_NEXT(geo_t, coord_next, (member)))

Definition at line 66 of file redraw_man.c.

#define FORPAINTMEMBERS ( paint,
member   ) 

Value:

for((member) = STAILQ_HEAD((paint)->members);   \
        (member) != NULL;                               \
        (member) = STAILQ_NEXT(paint_t, next, member))

Definition at line 78 of file redraw_man.c.

#define NEXT_CHILD ( child   )     STAILQ_NEXT(coord_t, sibling, child)

Definition at line 58 of file redraw_man.c.

#define NEXT_MEMBER ( member   )     STAILQ_NEXT(geo_t, coord_next, (member))

Definition at line 70 of file redraw_man.c.

#define OK   0

Definition at line 33 of file redraw_man.c.

#define rdman_is_dirty ( rdman   ) 

Value:

((rdman)->dirty_coords.num != 0 ||              \
     (rdman)->dirty_geos.num != 0 ||            \
     (rdman)->dirty_areas.num != 0)

Definition at line 28 of file redraw_man.c.

#define RM_CHILD ( parent,
child   )     STAILQ_REMOVE((parent)->children, coord_t, sibling, (child))

Definition at line 61 of file redraw_man.c.

#define RM_MEMBER ( coord,
member   )     STAILQ_REMOVE((coord)->members, geo_t, coord_next, (member))

Definition at line 73 of file redraw_man.c.

#define RM_PAINT ( rdman,
paint   )     STAILQ_REMOVE((rdman)->paints, paint_t, pnt_next, paint)

Definition at line 84 of file redraw_man.c.

#define RM_PAINTMEMBER ( paint,
member   )     STAILQ_REMOVE((paint)->members, shnode_t, next, member)

Definition at line 82 of file redraw_man.c.

#define sh_attach_coord ( sh,
coord   )     do { (sh)->coord = coord; } while(0)

Definition at line 26 of file redraw_man.c.

#define sh_attach_geo ( sh,
g   ) 

Value:

do {                                    \
        (sh)->geo = g;                          \
        (g)->shape = (shape_t *)(sh);           \
    } while(0)

Definition at line 15 of file redraw_man.c.

#define sh_detach_coord ( sh   )     do { (sh)->coord = NULL; } while(0)

Definition at line 27 of file redraw_man.c.

#define sh_detach_geo ( sh   ) 

Value:

do {                                    \
        (sh)->geo->shape = NULL;                \
        (sh)->geo = NULL;                       \
    } while(0)

Definition at line 20 of file redraw_man.c.

#define sh_get_geo ( sh   )     ((sh)->geo)

Definition at line 25 of file redraw_man.c.

#define SWAP ( a,
b,
t   )     do { t c; c = a; a = b; b = c; } while(0)

Definition at line 38 of file redraw_man.c.

Function Documentation

static void _insert_sort ( void **  elms,
int  num,
int  off 
) [static]

Sort a list of element by a unsigned integer.

The result is in ascend order. The unsigned integers is at offset specified by 'off' from start address of elemnts.

Definition at line 92 of file redraw_man.c.

void _rdman_paint_real_remove_child ( redraw_man_t *  rdman,
paint_t *  paint,
shape_t *  shape 
)

Definition at line 497 of file redraw_man.c.

static int _rdman_shape_changed ( redraw_man_t *  rdman,
shape_t *  shape 
) [static]

Definition at line 672 of file redraw_man.c.

static int add_dirty_area ( redraw_man_t *  rdman,
area_t *  area 
) [static]

Definition at line 131 of file redraw_man.c.

static int add_dirty_coord ( redraw_man_t *  rdman,
coord_t *  coord 
) [static]

Definition at line 121 of file redraw_man.c.

static int add_dirty_geo ( redraw_man_t *  rdman,
geo_t *  geo 
) [static]

Definition at line 126 of file redraw_man.c.

static int add_free_obj ( redraw_man_t *  rdman,
void *  obj,
free_func_t  free_func 
) [static]

Definition at line 135 of file redraw_man.c.

static void area_to_positions ( area_t *  area,
co_aix(*)  poses[2] 
) [static]

Definition at line 173 of file redraw_man.c.

static void clean_canvas ( cairo_t *  cr  )  [static]

Todo:
clean to background color.

Definition at line 957 of file redraw_man.c.

static void clean_canvas_black ( cairo_t *  cr  )  [static]

Todo:
clean to background color.

Definition at line 963 of file redraw_man.c.

static int clean_coord ( redraw_man_t *  rdman,
coord_t *  coord 
) [static]

Note:
poses is shared by invokings, it is not support reentrying.

Definition at line 769 of file redraw_man.c.

static int clean_rdman_coords ( redraw_man_t *  rdman  )  [static]

Clean coord_t objects.

Definition at line 813 of file redraw_man.c.

static int clean_rdman_dirties ( redraw_man_t *  rdman  )  [static]

Definition at line 865 of file redraw_man.c.

static int clean_rdman_geos ( redraw_man_t *  rdman  )  [static]

Definition at line 840 of file redraw_man.c.

static void clean_shape ( shape_t *  shape  )  [static]

Definition at line 720 of file redraw_man.c.

static void copy_cr_2_backend ( redraw_man_t *  rdman,
int  n_dirty_areas,
area_t **  dirty_areas 
) [static]

Definition at line 985 of file redraw_man.c.

DARRAY_DEFINE ( areas  ,
area_t *   
)

DARRAY_DEFINE ( geos  ,
geo_t *   
)

DARRAY_DEFINE ( coords  ,
coord_t *   
)

static int draw_coord_shapes_in_areas ( redraw_man_t *  rdman,
coord_t *  coord,
int  n_areas,
area_t **  areas 
) [static]

Definition at line 1033 of file redraw_man.c.

static void draw_shape ( redraw_man_t *  rdman,
cairo_t *  cr,
shape_t *  shape 
) [static]

Todo:
Move operator of shapes into singleton structures that define operators for them.

Definition at line 914 of file redraw_man.c.

static void draw_shapes_in_areas ( redraw_man_t *  rdman,
int  n_areas,
area_t **  areas 
) [static]

Definition at line 1077 of file redraw_man.c.

static void fill_path ( redraw_man_t *  rdman  )  [static]

Definition at line 893 of file redraw_man.c.

static void fill_path_preserve ( redraw_man_t *  rdman  )  [static]

Definition at line 889 of file redraw_man.c.

static void free_canvas ( cairo_t *  canvas  )  [static]

Definition at line 199 of file redraw_man.c.

static void free_free_objs ( redraw_man_t *  rdman  )  [static]

Definition at line 157 of file redraw_man.c.

static void free_objs_destroy ( redraw_man_t *  rdman  )  [static]

Definition at line 168 of file redraw_man.c.

static void geo_attach_coord ( geo_t *  geo,
coord_t *  coord 
) [static]

Definition at line 217 of file redraw_man.c.

static void geo_detach_coord ( geo_t *  geo,
coord_t *  coord 
) [static]

Definition at line 222 of file redraw_man.c.

static int geo_off_in_coord ( geo_t *  geo,
coord_t *  coord 
) [static]

Definition at line 205 of file redraw_man.c.

static int is_coord_subtree_hidden ( coord_t *  coord  )  [static]

Definition at line 711 of file redraw_man.c.

static int is_geo_in_areas ( geo_t *  geo,
int  n_areas,
area_t **  areas 
) [static]

Definition at line 1007 of file redraw_man.c.

static void make_clip ( cairo_t *  cr,
int  n_dirty_areas,
area_t **  dirty_areas 
) [static]

Definition at line 969 of file redraw_man.c.

static cairo_t* new_canvas ( redraw_man_t *  rdman  )  [static]

Definition at line 180 of file redraw_man.c.

static subject_t * ob_get_parent_subject ( ob_factory_t *  factory,
subject_t *  cur_subject 
) [static]

Definition at line 1375 of file redraw_man.c.

static observer_t * ob_observer_alloc ( ob_factory_t *  factory  )  [static]

Definition at line 1358 of file redraw_man.c.

static void ob_observer_free ( ob_factory_t *  factory,
observer_t *  observer 
) [static]

Definition at line 1368 of file redraw_man.c.

static subject_t * ob_subject_alloc ( ob_factory_t *  factory  )  [static]

Definition at line 1341 of file redraw_man.c.

static void ob_subject_free ( ob_factory_t *  factory,
subject_t *  subject 
) [static]

Definition at line 1351 of file redraw_man.c.

int rdman_add_shape ( redraw_man_t *  rdman,
shape_t *  shape,
coord_t *  coord 
)

Definition at line 390 of file redraw_man.c.

int rdman_coord_changed ( redraw_man_t *  rdman,
coord_t *  coord 
)

Mark a coord is changed.

A changed coord_t object is marked as dirty and put into dirty_coords list. rdman_coord_changed() should be called for a coord after it been changed to notify redraw manager to redraw shapes grouped by it.

Definition at line 644 of file redraw_man.c.

int rdman_coord_free ( redraw_man_t *  rdman,
coord_t *  coord 
)

Free a coord of a redraw_man_t object.

Parameters:
coord is a coord_t without children and members.
Returns:
0 for successful, -1 for error.
Note:
Removing coords when the rdman is dirty, the removing is postponsed.

Definition at line 557 of file redraw_man.c.

coord_t* rdman_coord_new ( redraw_man_t *  rdman,
coord_t *  parent 
)

Note:
default opacity == 1

Definition at line 511 of file redraw_man.c.

int rdman_coord_subtree_free ( redraw_man_t *  rdman,
coord_t *  subtree 
)

Definition at line 610 of file redraw_man.c.

int rdman_force_clean ( redraw_man_t *  rdman  ) 

Definition at line 1245 of file redraw_man.c.

geo_t* rdman_geos ( redraw_man_t *  rdman,
geo_t *  last 
)

Definition at line 1221 of file redraw_man.c.

int rdman_paint_changed ( redraw_man_t *  rdman,
paint_t *  paint 
)

Definition at line 697 of file redraw_man.c.

int rdman_paint_free ( redraw_man_t *  rdman,
paint_t *  paint 
)

Definition at line 467 of file redraw_man.c.

int rdman_redraw_all ( redraw_man_t *  rdman  ) 

Definition at line 1180 of file redraw_man.c.

int rdman_redraw_area ( redraw_man_t *  rdman,
co_aix  x,
co_aix  y,
co_aix  w,
co_aix  h 
)

Definition at line 1205 of file redraw_man.c.

int rdman_redraw_changed ( redraw_man_t *  rdman  ) 

Re-draw all changed shapes or shapes affected by changed coords.

A coord object has a geo to keep track the range that it's members will draw on. Geo of a coord should be recomputed when the coord is changed. Geo of a coord used to accelerate finding overlay shape objects of a specified geo. A coord object also must be recomputed when one of it's members is changed.

New and old geo values of a coord object that is recomputed for changing of it-self must be used to find overlay shape objects. New and old geo values of a shape should also be used to find overlay shape objects, too. If a shape's coord is changed, shape's geo object is not used to find overlay shape objects any more.

steps:

  • update chagned coord objects
  • recompute area for changed coord objects
    • recompute geo for members shape objects
    • clear dirty of geo for members to prevent from recomputing for change of shape objects.
    • add old and new area value to list of dirty areas.
  • recompute geo for changed shape objects
    • only if a shape object is dirty.
    • put new and old value of area of geo to list of dirty areas.
  • Scan all shapes and redraw shapes overlaid with dirty areas.

dirty flag of coord objects is cleared after update. dirty flag of geo objects is also cleared after recomputing. Clean dirty flag can prevent redundant computing for geo and corod objects.

Draw shapes in preorder of coord tree and support opacity rules.

Definition at line 1116 of file redraw_man.c.

int rdman_shape_changed ( redraw_man_t *  rdman,
shape_t *  shape 
)

Mark a shape is changed.

The geo_t object of a changed shape is mark as dirty and put into dirty_geos list.

Definition at line 693 of file redraw_man.c.

int rdman_shape_free ( redraw_man_t *  rdman,
shape_t *  shape 
)

Remove a shape object from redraw manager.

Note:
Shapes should be removed after redrawing or when rdman is in clean.

Removing shapes or coords when a rdman is dirty, removing is postponsed.

Todo:
redraw shape objects that overlaid with removed one.

Definition at line 421 of file redraw_man.c.

void redraw_man_destroy ( redraw_man_t *  rdman  ) 

Definition at line 318 of file redraw_man.c.

int redraw_man_init ( redraw_man_t *  rdman,
cairo_t *  cr,
cairo_t *  backend 
)

Definition at line 238 of file redraw_man.c.

static void reset_clip ( redraw_man_t *  rdman  )  [static]

Definition at line 981 of file redraw_man.c.

static void set_shape_stroke_param ( shape_t *  shape,
cairo_t *  cr 
) [static]

Definition at line 885 of file redraw_man.c.

static void setup_canvas ( redraw_man_t *  rdman,
coord_t *  coord 
) [static]

Setup canvas for the coord.

Own a canvas or inherit it from parent.

See also:

Definition at line 751 of file redraw_man.c.

shnode_t* shnode_new ( redraw_man_t *  rdman,
shape_t *  shape 
)

Definition at line 456 of file redraw_man.c.

static void stroke_path ( redraw_man_t *  rdman  )  [static]

Definition at line 897 of file redraw_man.c.

static void update_canvas_2_parent ( redraw_man_t *  rdman,
coord_t *  coord 
) [static]

Definition at line 1019 of file redraw_man.c.

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