/** returns true if the pointer associated with the storage is NULL */
bool is_null() const {
void *ptr;
status_t status = get_data_handle(&ptr);
assert(status == status::success);
MAYBE_UNUSED(status);
return !ptr;
}
void *data_handle() const {
void *handle;
status_t status = get_data_handle(&handle);
assert(status == status::success);
MAYBE_UNUSED(status);
return handle;
}
static char *displ_picture(char *c)
{
char *d;
int x,y,hn,z,ln,sl;
short *sh;
d = write_buff;
while (*c !=':') *d++= *c++;
*d++= 0;c++;
hn = get_data_handle(write_buff,pcx_8bit_decomp);
x = read_num(c,(z = 0,&z));c += z;
y = read_num(c,(z = 0,&z));c += z;
ln = read_num(c,(z = 0,&z));c += z;
sl = read_num(c,(z = 0,&z));c += z;
sh = ablock(hn);
if (sh[1]+y>YMAX) return c;
y += YLEFT;
x += relpos;
put_8bit_clipped(sh,GetScreenAdr()+x+scr_linelen2*y,ln,sh[0],sl);
return c;
}
static void insert_picture(char *filename,int align,int line,int lsize)
{
int x, y;
short *psiz;
char *c = write_buff;
psiz = ablock(get_data_handle(filename,pcx_8bit_decomp));
switch (align)
{
case ANUM_CENTER:
x = (XMAX-psiz[0])/2;
y = linepos;
linepos += psiz[1];
*c++= 27;
*c++= END_LINE;
c += insert_num(c,0,psiz[1]+last_skip);
break;
case ANUM_LEFT: x = 0;
y = linepos;
left_skip = psiz[0]+5;
total_width = XMAX-left_skip;
break;
case ANUM_RIGHT: total_width = (x = XMAX-psiz[0])-5;
left_skip = 0;
y = linepos;
break;
}
if (!lsize) lsize = psiz[1]-line;
picture_len = lsize;
*c++= 27;
*c++= PICTURE;
while (*filename) *c++= *filename++;
*c++=':';
c += insert_num(c,0,x);
c += insert_num(c,0,y);
c += insert_num(c,0,line);
c += insert_num(c,0,lsize);
*c++= 0;
str_add(&all_text,write_buff);
}
virtual status_t map_data(void **mapped_ptr) const {
return get_data_handle(mapped_ptr);
}
