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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_DEF_WIDTHMAP
#endif
/*
XW_EXT_WIDTHMAP* Xw_def_widthmap(adisplay,nwidth):
XW_EXT_DISPLAY *adisplay Extended Display structure
int nwidth Number of width cells to be allocated
Create a widthmap extension
allocate the width cells in the widthmap as if possible
depending of the MAXWIDTH define .
Returns Widthmap extension address if successful
or NULL if ERROR
STATUS Xw_close_widthmap(awidthmap):
XW_EXT_WIDTHMAP* awidthmap Extended Widthmap address
Destroy The specified Extended Widthmap
Returns SUCCESS if successuful
Returns ERROR if Bad Extended Widthmap
*/
#ifdef XW_PROTOTYPE
void* Xw_def_widthmap (void* adisplay,int nwidth)
#else
void* Xw_def_widthmap (adisplay,nwidth)
void *adisplay ;
int nwidth ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_DISPLAY *pdisplay = (XW_EXT_DISPLAY*)adisplay ;
XW_EXT_WIDTHMAP *pwidthmap = NULL ;
//int i ;
if( !Xw_isdefine_display(pdisplay) ) {
/*ERROR*Bad EXT_DISPLAY Address*/
Xw_set_error(96,"Xw_def_widthmap",pdisplay) ;
return (NULL) ;
}
if( !(pwidthmap = Xw_add_widthmap_structure(sizeof(XW_EXT_WIDTHMAP))) )
return (NULL) ;
if( nwidth <= 0 ) nwidth = MAXWIDTH ;
pwidthmap->connexion = pdisplay ;
pwidthmap->maxwidth = min(nwidth,MAXWIDTH) ;
#ifdef TRACE_DEF_WIDTHMAP
if( Xw_get_trace() ) {
printf(" %lx = Xw_def_widthmap(%lx,%d)\n",
(long ) pwidthmap,(long ) adisplay,nwidth) ;
}
#endif
return (pwidthmap);
}
static XW_EXT_WIDTHMAP *PwidthmapList =NULL ;
#ifdef XW_PROTOTYPE
XW_EXT_WIDTHMAP* Xw_add_widthmap_structure(int size)
#else
XW_EXT_WIDTHMAP* Xw_add_widthmap_structure(size)
int size ;
#endif /*XW_PROTOTYPE*/
/*
Create and Insert one Extended widthmap structure in the
EXtended widthmap List
returns Extended widthmap address if successful
or NULL if Bad Allocation
*/
{
XW_EXT_WIDTHMAP *pwidthmap = (XW_EXT_WIDTHMAP*) Xw_malloc(size) ;
int i ;
if( pwidthmap ) {
pwidthmap->type = WIDTHMAP_TYPE ;
pwidthmap->link = PwidthmapList ;
PwidthmapList = pwidthmap ;
pwidthmap->connexion = NULL ;
pwidthmap->maxwidth = 0 ;
pwidthmap->maxwindow = 0 ;
for( i=0 ; i<MAXWIDTH ; i++ ) {
pwidthmap->widths[i] = 0 ;
}
} else {
/*EXT_WIDTHMAP Allocation Failed*/
Xw_set_error(23,"Xw_add_widthmap_structure",0) ;
}
return (pwidthmap) ;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_close_widthmap(void* awidthmap)
#else
XW_STATUS Xw_close_widthmap(awidthmap)
void* awidthmap ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WIDTHMAP *pwidthmap = (XW_EXT_WIDTHMAP*)awidthmap ;
XW_STATUS status ;
if( !Xw_isdefine_widthmap(pwidthmap) ) {
/*Bad EXT_WIDTHMAP Address*/
Xw_set_error(53,"Xw_close_widthmap",pwidthmap) ;
return (XW_ERROR) ;
}
status = Xw_del_widthmap_structure(pwidthmap) ;
#ifdef TRACE_DEF_WIDTHMAP
if( Xw_get_trace() ) {
printf(" %d = Xw_close_widthmap(%lx)\n",status,(long ) pwidthmap) ;
}
#endif
return (status) ;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_del_widthmap_structure(XW_EXT_WIDTHMAP* awidthmap)
#else
XW_STATUS Xw_del_widthmap_structure(awidthmap)
XW_EXT_WIDTHMAP *awidthmap;
#endif /*XW_PROTOTYPE*/
/*
Remove the Extended widthmap address from the Extended List
returns ERROR if the widthmap address is not Found in the list
returns SUCCESS if successful
*/
{
XW_EXT_WIDTHMAP *pwidthmap = PwidthmapList ;
//int i ;
if( !awidthmap ) return (XW_ERROR) ;
if( awidthmap->maxwindow ) {
return (XW_ERROR) ;
} else {
if( awidthmap == pwidthmap ) {
PwidthmapList = (XW_EXT_WIDTHMAP*) awidthmap->link ;
} else {
for( ; pwidthmap ; pwidthmap = (XW_EXT_WIDTHMAP*) pwidthmap->link ) {
if( pwidthmap->link == awidthmap ) {
pwidthmap->link = awidthmap->link ;
break ;
}
}
}
Xw_free(awidthmap) ;
}
return (XW_SUCCESS) ;
}
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