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|
#define S3593 /*GG_130398
OPTIMISATION MFT
Activer le clipping de maniere optionnelle
*/
#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_DRAW_LINE
#endif
/*
STATUS Xw_draw_line (awindow,npoint,x,y):
XW_EXT_WINDOW *awindow
int npoint Polyline point number
float *x,*y Points Arrays
Display continuous line in current QG set by set_line_attrib .
Note that lines can be buffered depending of the DisplayMode context
and Flush at Xw_flush time .
returns ERROR if npoint > MAXPOINTS
returns SUCCESS always
*/
static int BeginLine = -1 ;
static XW_EXT_LINE *plinelist ;
static XW_EXT_POINT *plinedesc ;
static XSegment segment;
#ifdef XW_PROTOTYPE
XW_STATUS Xw_draw_line (void* awindow,int npoint,float* px,float* py)
#else
XW_STATUS Xw_draw_line (awindow,npoint,px,py)
void *awindow;
int npoint ;
float *px,*py ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*) awindow ;
XW_EXT_BUFFER *pbuffer ;
int i,nline,ldesc,bindex;
int x,y,lx=0,ly=0 ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_draw_line",pwindow) ;
return (XW_ERROR) ;
}
if( npoint > MAXPOINTS ) {
npoint = MAXPOINTS;
/*ERROR*Too many points in LINE*/
Xw_set_error(28,"Xw_draw_line",&npoint) ;
return (XW_ERROR) ;
}
bindex = _BINDEX ;
pbuffer = &_BUFFER(bindex) ;
for( plinelist = pbuffer->plinelist ; plinelist ;
plinelist = (XW_EXT_LINE*)plinelist->link ) {
if( plinelist->nline < MAXLINES ) break ;
}
if( !plinelist ) {
plinelist = Xw_add_polyline_structure(pbuffer) ;
}
if( !plinelist ) return XW_ERROR ;
for( plinedesc = pbuffer->plinedesc ; plinedesc ;
plinedesc = (XW_EXT_POINT*)plinedesc->link ) {
if( plinedesc->npoint + npoint <= MAXPOINTS ) break ;
}
if( !plinedesc ) {
plinedesc = Xw_add_line_desc_structure(pbuffer) ;
}
if( !plinedesc ) return XW_ERROR ;
nline = plinelist->nline ;
ldesc = plinedesc->npoint ;
plinelist->plines[nline] = &plinedesc->rpoints[ldesc] ;
for( i=0 ; i<npoint ; i++ ) {
//OCC186
x = PXPOINT(px[i], pwindow->xratio) ;
y = PYPOINT(py[i], pwindow->attributes.height, pwindow->yratio) ;
//OCC186
#ifdef S3593
if( pwindow->clipflag ) {
#endif
if( i > 0 ) {
int status;
status = Xw_clip_segment(pwindow,lx,ly,x,y,&segment);
if( status >= 0 ) {
if( (i < 2) || (status & 0xF ) ) {
plinedesc->rpoints[ldesc].x = segment.x1 ;
plinedesc->rpoints[ldesc].y = segment.y1 ;
ldesc++;
if( bindex > 0 ) {
int xx = segment.x1,yy = segment.y1;
pbuffer->rxmin = min(pbuffer->rxmin,xx) ;
pbuffer->rymin = min(pbuffer->rymin,yy) ;
pbuffer->rxmax = max(pbuffer->rxmax,xx) ;
pbuffer->rymax = max(pbuffer->rymax,yy) ;
}
}
plinedesc->rpoints[ldesc].x = segment.x2 ;
plinedesc->rpoints[ldesc].y = segment.y2 ;
ldesc++;
if( bindex > 0 ) {
int xx = segment.x2,yy = segment.y2;
pbuffer->rxmin = min(pbuffer->rxmin,xx) ;
pbuffer->rymin = min(pbuffer->rymin,yy) ;
pbuffer->rxmax = max(pbuffer->rxmax,xx) ;
pbuffer->rymax = max(pbuffer->rymax,yy) ;
}
}
}
lx = x; ly = y;
#ifdef S3593
} else {
plinedesc->rpoints[ldesc].x = x ;
plinedesc->rpoints[ldesc].y = y ;
ldesc++ ;
if( bindex > 0 ) {
pbuffer->rxmin = min(pbuffer->rxmin,x) ;
pbuffer->rymin = min(pbuffer->rymin,y) ;
pbuffer->rxmax = max(pbuffer->rxmax,x) ;
pbuffer->rymax = max(pbuffer->rymax,y) ;
}
}
#endif
}
plinelist->lines[nline] = ldesc - plinedesc->npoint ;
if( plinelist->lines[nline] > 1 ) {
plinedesc->npoint = ldesc ;
plinelist->nline++ ;
if( bindex > 0 ) {
pbuffer->isempty = False ;
} else if( BeginLine < 0 ) {
int index = pwindow->lineindex ;
Xw_draw_pixel_lines(pwindow,plinelist,pwindow->qgline[index].gc);
plinelist->nline = 0 ;
plinedesc->npoint = 0 ;
}
}
#ifdef TRACE_DRAW_LINE
if( Xw_get_trace() > 2 ) {
printf(" Xw_draw_line(%lx,%d)\n",(long ) pwindow,npoint) ;
for( i=0 ; i<npoint ; i++ ) {
printf(" Point(%d) = {%f,%f}\n",i,px[i],py[i]) ;
}
}
#endif
return (XW_SUCCESS);
}
#ifdef XW_PROTOTYPE
void Xw_draw_pixel_lines (XW_EXT_WINDOW* pwindow,XW_EXT_LINE *plinelist,GC gc)
#else
void Xw_draw_pixel_lines (pwindow,plinelist,gc)
XW_EXT_WINDOW *pwindow;
XW_EXT_LINE *plinelist;
GC gc ;
#endif /*XW_PROTOTYPE*/
{
int i,npoint;
XPoint *ppoint ;
for( i=0 ; i<plinelist->nline ; i++ ) {
npoint = plinelist->lines[i] ;
ppoint = plinelist->plines[i] ;
if( plinelist->isupdated ) {
ppoint += MAXPOINTS ;
}
if( ppoint && npoint > 1 ) {
XDrawLines(_DISPLAY,_DRAWABLE,gc,ppoint,npoint,CoordModeOrigin) ;
}
}
}
/*
STATUS Xw_begin_line (awindow,npoint):
XW_EXT_WINDOW *awindow
int npoint Polyline point number
Begin Polyline which must be filled by Xw_line_point and
closed by Xw_close_line
returns ERROR if npoint > MAXPOINTS
returns SUCCESS if successful
*/
static int Npoint = 0;
static int Lx,Ly;
#ifdef XW_PROTOTYPE
XW_STATUS Xw_begin_line(void* awindow,int npoint)
#else
XW_STATUS Xw_begin_line(awindow,npoint)
void *awindow ;
int npoint ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
XW_EXT_BUFFER *pbuffer ;
int nline,ldesc,bindex ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_begin_line",pwindow) ;
return (XW_ERROR) ;
}
if( npoint > MAXPOINTS ) {
npoint = MAXPOINTS ;
/*ERROR*Too many points in LINE*/
Xw_set_error(28,"Xw_begin_line",&npoint) ;
return (XW_ERROR) ;
}
if( BeginLine >= 0 ) Xw_close_line(pwindow);
bindex = _BINDEX ;
pbuffer = &_BUFFER(bindex) ;
for( plinelist = pbuffer->plinelist ; plinelist ;
plinelist = (XW_EXT_LINE*)plinelist->link ) {
if( plinelist->nline < MAXLINES ) break ;
}
if( !plinelist ) {
plinelist = Xw_add_polyline_structure(pbuffer) ;
}
if( !plinelist ) return XW_ERROR ;
for( plinedesc = pbuffer->plinedesc ; plinedesc ;
plinedesc = (XW_EXT_POINT*)plinedesc->link ) {
if( plinedesc->npoint + npoint <= MAXPOINTS ) break ;
}
if( !plinedesc ) {
plinedesc = Xw_add_line_desc_structure(pbuffer) ;
}
if( !plinedesc ) return XW_ERROR ;
nline = plinelist->nline ;
ldesc = plinedesc->npoint ;
plinelist->lines[nline] = Npoint = 0 ;
plinelist->plines[nline] = &plinedesc->rpoints[ldesc] ;
BeginLine = ldesc ;
#ifdef TRACE_DRAW_LINE
if( Xw_get_trace() > 2 ) {
printf(" Xw_begin_line(%lx,%d)\n",(long ) pwindow,npoint) ;
}
#endif
return (XW_SUCCESS) ;
}
/*
STATUS Xw_line_point (awindow,x,y):
XW_EXT_WINDOW *awindow
float x,y New point to add in polyline in user-space coordinates
Fill Polyline with one point more
returns ERROR if Too Many Points in polylines
returns SUCCESS if successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_line_point(void* awindow,float x,float y)
#else
XW_STATUS Xw_line_point(awindow,x,y)
void *awindow ;
float x,y ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
XW_EXT_BUFFER *pbuffer ;
int bindex,xi,yi ;
if( BeginLine >= 0 ) {
int ldesc = plinedesc->npoint ;
if( ldesc >= MAXPOINTS ) {
/*ERROR*Too many points in LINE*/
Xw_set_error(28,"Xw_line_point",&ldesc) ;
Xw_close_line(pwindow) ;
return (XW_ERROR) ;
}
bindex = _BINDEX ;
pbuffer = &_BUFFER(bindex) ;
//OCC186
xi = PXPOINT(x, pwindow->xratio) ;
yi = PYPOINT(y, pwindow->attributes.height, pwindow->yratio) ;
//OCC186
#ifdef S3593
if( pwindow->clipflag ) {
#endif
if( Npoint > 0 ) {
int status;
status = Xw_clip_segment(pwindow,Lx,Ly,xi,yi,&segment);
if( status >= 0 ) {
if( (Npoint < 2) || (status & 0xF ) ) {
plinedesc->rpoints[ldesc].x = segment.x1 ;
plinedesc->rpoints[ldesc].y = segment.y1 ;
ldesc++;
if( bindex > 0 ) {
int xx = segment.x1,yy = segment.y1;
pbuffer->isempty = False ;
pbuffer->rxmin = min(pbuffer->rxmin,xx) ;
pbuffer->rymin = min(pbuffer->rymin,yy) ;
pbuffer->rxmax = max(pbuffer->rxmax,xx) ;
pbuffer->rymax = max(pbuffer->rymax,yy) ;
}
}
plinedesc->rpoints[ldesc].x = segment.x2 ;
plinedesc->rpoints[ldesc].y = segment.y2 ;
ldesc++;
if( bindex > 0 ) {
int xx = segment.x2,yy = segment.y2;
pbuffer->isempty = False ;
pbuffer->rxmin = min(pbuffer->rxmin,xx) ;
pbuffer->rymin = min(pbuffer->rymin,yy) ;
pbuffer->rxmax = max(pbuffer->rxmax,xx) ;
pbuffer->rymax = max(pbuffer->rymax,yy) ;
}
}
}
Lx = xi; Ly = yi;
#ifdef S3593
} else {
plinedesc->rpoints[ldesc].x = xi ;
plinedesc->rpoints[ldesc].y = yi ;
ldesc++;
if( bindex > 0 ) {
pbuffer->isempty = False ;
pbuffer->rxmin = min(pbuffer->rxmin,xi) ;
pbuffer->rymin = min(pbuffer->rymin,yi) ;
pbuffer->rxmax = max(pbuffer->rxmax,xi) ;
pbuffer->rymax = max(pbuffer->rymax,yi) ;
}
}
#endif
Npoint++;
plinedesc->npoint = ldesc ;
}
#ifdef TRACE_DRAW_LINE
if( Xw_get_trace() > 3 ) {
printf(" Xw_line_point(%lx,%f,%f)\n",(long ) pwindow,x,y) ;
}
#endif
return (XW_SUCCESS) ;
}
/*
STATUS Xw_close_line (awindow):
XW_EXT_WINDOW *awindow
Close the Polyline
returns ERROR if Polyline is empty
returns SUCCESS if successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_close_line(void* awindow)
#else
XW_STATUS Xw_close_line(awindow)
void *awindow ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
if( BeginLine >= 0 ) {
int nline = plinelist->nline ;
int ldesc = plinedesc->npoint ;
int bindex = _BINDEX ;
plinelist->lines[nline] = ldesc - BeginLine ;
plinelist->nline++ ;
if( !bindex ) {
int index = pwindow->lineindex ;
Xw_draw_pixel_lines(pwindow,plinelist,pwindow->qgline[index].gc) ;
plinelist->nline = 0 ;
plinedesc->npoint = 0 ;
}
BeginLine = -1 ;
}
#ifdef TRACE_DRAW_LINE
if( Xw_get_trace() > 2 ) {
printf(" Xw_close_line(%lx)\n",(long ) pwindow) ;
}
#endif
return (XW_SUCCESS) ;
}
#ifdef XW_PROTOTYPE
XW_EXT_LINE* Xw_add_polyline_structure(XW_EXT_BUFFER* pbuflist )
#else
XW_EXT_LINE* Xw_add_polyline_structure(pbuflist )
XW_EXT_BUFFER *pbuflist ;
#endif /*XW_PROTOTYPE*/
/*
Create and Insert at end one Extended polyline structure in the
polyline List
returns Extended polyline address if successful
or NULL if Bad Allocation
*/
{
XW_EXT_LINE *pline ;
pline = (XW_EXT_LINE*) Xw_malloc(sizeof(XW_EXT_LINE)) ;
if( pline ) {
pline->link = pbuflist->plinelist ;
pline->isupdated = False ;
pline->nline = 0 ;
pbuflist->plinelist = pline ;
} else {
/*ERROR*EXT_LINE allocation failed*/
Xw_set_error(30,"Xw_add_polyline_structure",NULL) ;
}
return (pline) ;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_del_polyline_structure(XW_EXT_BUFFER* pbuflist)
#else
XW_STATUS Xw_del_polyline_structure(pbuflist)
XW_EXT_BUFFER *pbuflist ;
#endif /*XW_PROTOTYPE*/
/*
Remove ALL Extended polyline structure in the
polyline List
SUCCESS always
*/
{
XW_EXT_LINE *pline,*qline ;
for( pline = pbuflist->plinelist ; pline ; pline = qline ) {
qline = (XW_EXT_LINE*)pline->link ;
Xw_free(pline) ;
}
pbuflist->plinelist = NULL ;
return (XW_SUCCESS) ;
}
#ifdef XW_PROTOTYPE
XW_EXT_POINT* Xw_add_line_desc_structure(XW_EXT_BUFFER* pbuflist )
#else
XW_EXT_POINT* Xw_add_line_desc_structure(pbuflist )
XW_EXT_BUFFER *pbuflist ;
#endif /*XW_PROTOTYPE*/
/*
Create and Insert at end one Extended line_desc structure in the
line_desc List
returns Extended line_desc address if successful
or NULL if Bad Allocation
*/
{
XW_EXT_POINT *pdesc ;
pdesc = (XW_EXT_POINT*) Xw_malloc(sizeof(XW_EXT_POINT)) ;
if( pdesc ) {
pdesc->link = pbuflist->plinedesc ;
pdesc->npoint = 0 ;
pbuflist->plinedesc = pdesc ;
} else {
/*ERROR*EXT_POINT allocation failed*/
Xw_set_error(117,"Xw_add_line_desc_structure",NULL) ;
}
return (pdesc) ;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_del_line_desc_structure(XW_EXT_BUFFER* pbuflist)
#else
XW_STATUS Xw_del_line_desc_structure(pbuflist)
XW_EXT_BUFFER *pbuflist ;
#endif /*XW_PROTOTYPE*/
/*
Remove ALL Extended line_desc structure in the
line_desc List
SUCCESS always
*/
{
XW_EXT_POINT *pdesc,*qdesc ;
for( pdesc = pbuflist->plinedesc ; pdesc ; pdesc = qdesc ) {
qdesc = (XW_EXT_POINT*)pdesc->link ;
Xw_free(pdesc) ;
}
pbuflist->plinedesc = NULL ;
return (XW_SUCCESS) ;
}
|
