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#define BUC40223 /*GG_070797
Protection contre zoom trop grand*/
#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_DRAW_POLY
#endif
/*
STATUS Xw_draw_poly (awindow,npoint,px,py):
XW_EXT_WINDOW *awindow
int npoint Polygone point number
float *px,*py Polygone points
Display continuous poly in current QG set by set_poly_attrib .
Note that polys can be buffered depending of the DisplayMode context
and Flush at Xw_flush time .
returns ERROR if npoint > MAXPOINTS
returns SUCCESS if successful
*/
static int FirstPolyPoint = -1 ;
static int FirstPolyLine = -1 ;
static int FirstPathPoint = -1 ;
static XW_EXT_POLY *ppolylist ;
static XW_EXT_POINT *plinedesc ;
static XSegment segment;
#ifdef XW_PROTOTYPE
XW_STATUS Xw_draw_poly (void* awindow,int npoint,float* px,float* py)
#else
XW_STATUS Xw_draw_poly (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,npoly,ldesc,bindex;
int x=0,y=0,lx=0,ly=0 ;
XPoint *ppoint ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_draw_poly",pwindow) ;
return (XW_ERROR) ;
}
if( npoint >= MAXPOINTS ) {
npoint = MAXPOINTS-1 ;
/*ERROR*Too many points in POLYGONE*/
Xw_set_error(28,"Xw_draw_poly",&npoint) ;
return (XW_ERROR) ;
}
if( npoint < 3 ) {
/*WARNING*POLYGONE is Empty !!!*/
Xw_set_error(33,"Xw_draw_poly",&npoint) ;
return (XW_ERROR) ;
}
bindex = _BINDEX ;
pbuffer = &_BUFFER(bindex) ;
for( ppolylist = pbuffer->ppolylist ; ppolylist ;
ppolylist = (XW_EXT_POLY*)ppolylist->link ) {
if( ppolylist->npoly < MAXPOLYS ) break ;
}
if( !ppolylist ) {
ppolylist = Xw_add_polygone_structure(pbuffer) ;
}
if( !ppolylist ) 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 ;
npoly = ppolylist->npoly ;
ldesc = plinedesc->npoint ;
ppolylist->ppolys[npoly] = ppoint = &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 BUC40223
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;
#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
}
if( ppoint->x != x || ppoint->y != y ) {
plinedesc->rpoints[ldesc].x = ppoint->x ;
plinedesc->rpoints[ldesc].y = ppoint->y ;
ldesc++ ;
}
ppolylist->polys[npoly] = ldesc - plinedesc->npoint ;
ppolylist->paths[npoly] = ppolylist->polys[npoly] ;
if( ppolylist->polys[npoly] > 3 ) {
ppolylist->npoly++ ;
plinedesc->npoint = ldesc ;
if( bindex > 0 ) {
pbuffer->isempty = False ;
} else if( FirstPolyPoint < 0 ) {
int polyindex = pwindow->polyindex ;
int lineindex = pwindow->lineindex ;
GC gcpoly = (QGTILE(pwindow->qgpoly[polyindex].code)) ?
pwindow->qgpoly[polyindex].gc : NULL ;
GC gcline = (QGTYPE(pwindow->qgpoly[polyindex].code)) ?
pwindow->qgline[lineindex].gc : NULL ;
Xw_draw_pixel_polys(pwindow,ppolylist,gcpoly,gcline);
ppolylist->npoly = 0 ;
plinedesc->npoint = 0 ;
}
}
#ifdef TRACE_DRAW_POLY
if( Xw_get_trace() > 2 ) {
printf(" Xw_draw_poly(%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_polys(XW_EXT_WINDOW* pwindow,XW_EXT_POLY* ppolylist,
GC gcpoly,GC gcline)
#else
void Xw_draw_pixel_polys(pwindow,ppolylist,gcpoly,gcline)
XW_EXT_WINDOW *pwindow ;
XW_EXT_POLY *ppolylist ;
GC gcpoly,gcline ;
#endif
{
int i,npolypoint,npathpoint,shape,npoint=0,count=0;
Region chr_region=NULL;
XPoint *ppoint ;
for( i=0 ; i<ppolylist->npoly ; i++ ) {
npolypoint = ppolylist->polys[i] ;
npathpoint = ppolylist->paths[i] ;
ppoint = ppolylist->ppolys[i] ;
if( ppolylist->isupdated ) {
ppoint += MAXPOINTS ;
}
if( gcpoly ) {
if( npolypoint > 0 ) {
npoint = npolypoint; count = 0;
chr_region = 0;
}
if( npoint > npathpoint ) {
if( npathpoint > 3 ) {
if( chr_region == 0 ) {
chr_region =
XPolygonRegion(ppoint,npathpoint-1,EvenOddRule);
} else {
Region chr_pathreg =
XPolygonRegion(ppoint,npathpoint-1,EvenOddRule);
Region chr_xorreg = XCreateRegion ();
XXorRegion (chr_region, chr_pathreg, chr_xorreg);
XDestroyRegion (chr_region);
chr_region = chr_xorreg;
}
}
count += npathpoint;
if( count >= npoint && chr_region ) {
XRectangle rect;
XSetRegion(_DISPLAY,gcpoly,chr_region);
XClipBox(chr_region,&rect);
XFillRectangles(_DISPLAY,_DRAWABLE,gcpoly,&rect,1);
XDestroyRegion(chr_region);
XSetClipMask(_DISPLAY,gcpoly,None);
}
} else if( npoint > 3 ) {
shape = (npoint > 4) ? Nonconvex : Convex;
XFillPolygon(_DISPLAY,_DRAWABLE,gcpoly,ppoint,npoint-1,
shape,CoordModeOrigin) ;
}
}
if( gcline && (gcpoly != gcline) && (npathpoint > 3) ) {
XDrawLines(_DISPLAY,_DRAWABLE,gcline,
ppoint,npathpoint,CoordModeOrigin) ;
}
}
}
/*
STATUS Xw_begin_poly (awindow,npoint,npath):
XW_EXT_WINDOW *awindow
int npoint Estimated polygone point number
int npath Estimated polygone path number
Begin Polygone which must be filled by Xw_poly_point and
closed by Xw_close_poly
returns ERROR if npoint > MAXPOINTS
or npath > MAXPOLYS
returns SUCCESS if successful
*/
static int Npoint = 0;
static int Lx,Ly;
#ifdef XW_PROTOTYPE
XW_STATUS Xw_begin_poly(void* awindow,int npoint,int npath)
#else
XW_STATUS Xw_begin_poly(awindow,npoint,npath)
void *awindow ;
int npoint,npath ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
int npoly,ldesc,bindex ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_begin_poly",pwindow) ;
return (XW_ERROR) ;
}
if( npoint >= MAXPOINTS ) {
npoint = MAXPOINTS-1 ;
/*ERROR*Too many points in POLYGONE*/
Xw_set_error(32,"Xw_begin_poly",&npoint) ;
return (XW_ERROR) ;
}
if( npath >= MAXPOLYS ) {
npath = MAXPOLYS-1 ;
/*ERROR*Too many paths in POLYGONE*/
Xw_set_error(32,"Xw_begin_poly",&npath) ;
return (XW_ERROR) ;
}
if( FirstPolyPoint >= 0 ) Xw_close_poly(pwindow) ;
bindex = _BINDEX ;
for( ppolylist = _BUFFER(bindex).ppolylist ; ppolylist ;
ppolylist = (XW_EXT_POLY*)ppolylist->link ) {
if( (ppolylist->npoly + npath) < MAXPOLYS ) break ;
}
if( !ppolylist ) {
ppolylist = Xw_add_polygone_structure(&_BUFFER(bindex)) ;
}
if( !ppolylist ) return XW_ERROR ;
for( plinedesc = _BUFFER(bindex).plinedesc ; plinedesc ;
plinedesc = (XW_EXT_POINT*)plinedesc->link ) {
if( (plinedesc->npoint + npoint) < MAXPOINTS ) break ;
}
if( !plinedesc ) {
plinedesc = Xw_add_line_desc_structure(&_BUFFER(bindex)) ;
}
if( !plinedesc ) return XW_ERROR ;
npoly = ppolylist->npoly ;
ldesc = plinedesc->npoint ;
ppolylist->polys[npoly] = 0 ;
ppolylist->paths[npoly] = Npoint = 0 ;
ppolylist->ppolys[npoly] = &plinedesc->rpoints[ldesc] ;
FirstPolyPoint = FirstPathPoint = ldesc ;
FirstPolyLine = npoly;
#ifdef TRACE_DRAW_POLY
if( Xw_get_trace() > 2 ) {
printf(" Xw_begin_poly(%lx,%d,%d)\n",(long ) pwindow,npoint,npath) ;
}
#endif
return (XW_SUCCESS) ;
}
/*
STATUS Xw_poly_point (awindow,x,y):
XW_EXT_WINDOW *awindow
float x,y New point to add in polygone in user-space coordinates
Fill Polygone with one point more
returns ERROR if Too Many Points in polygones
returns SUCCESS if successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_poly_point(void* awindow,float x,float y)
#else
XW_STATUS Xw_poly_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( FirstPolyPoint >= 0 ) {
int ldesc = plinedesc->npoint ;
if( ldesc >= MAXPOINTS ) {
/*ERROR*Too many points in POLYGONE*/
Xw_set_error(32,"Xw_poly_point",&ldesc) ;
Xw_close_poly(pwindow) ;
return (XW_ERROR) ;
}
bindex = _BINDEX ;
//OCC186
xi = PXPOINT(x, pwindow->xratio) ;
yi = PYPOINT(y, pwindow->attributes.height, pwindow->yratio) ;
//OCC186
#ifdef BUC40223
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++; plinedesc->npoint++ ;
if( bindex > 0 ) {
int xx = segment.x1,yy = segment.y1;
pbuffer = &_BUFFER(bindex) ;
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 ;
plinedesc->npoint++ ;
if( bindex > 0 ) {
int xx = segment.x2,yy = segment.y2;
pbuffer = &_BUFFER(bindex) ;
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;
Npoint++;
#else
plinedesc->rpoints[ldesc].x = xi ;
plinedesc->rpoints[ldesc].y = yi ;
plinedesc->npoint++ ;
if( bindex > 0 ) {
pbuffer = &_BUFFER(bindex) ;
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
}
#ifdef TRACE_DRAW_POLY
if( Xw_get_trace() > 3 ) {
printf(" Xw_poly_point(%lx,%f,%f)\n",(long ) pwindow,x,y) ;
}
#endif
return (XW_SUCCESS) ;
}
/*
STATUS Xw_close_path (awindow):
XW_EXT_WINDOW *awindow
Close the Polygone path
returns ERROR if TOO many path
returns SUCCESS if successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_close_path(void* awindow)
#else
XW_STATUS Xw_close_path(awindow)
void *awindow ;
#endif /*XW_PROTOTYPE*/
{
#ifdef TRACE_DRAW_POLY
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
#endif
if( FirstPolyPoint >= 0 ) {
int npoly = ppolylist->npoly ;
int ldesc = plinedesc->npoint ;
if( plinedesc->rpoints[FirstPathPoint].x != plinedesc->rpoints[ldesc-1].x ||
plinedesc->rpoints[FirstPathPoint].y != plinedesc->rpoints[ldesc-1].y ) {
plinedesc->rpoints[ldesc].x = plinedesc->rpoints[FirstPathPoint].x ;
plinedesc->rpoints[ldesc].y = plinedesc->rpoints[FirstPathPoint].y ;
plinedesc->npoint++ ; ldesc++ ;
}
ppolylist->polys[FirstPolyLine] = ldesc - FirstPolyPoint ;
ppolylist->paths[npoly] = ldesc - FirstPathPoint ;
FirstPathPoint = ldesc;
if( ppolylist->npoly < MAXPOLYS ) {
ppolylist->npoly = ++npoly ;
ppolylist->polys[npoly] = 0 ;
ppolylist->paths[npoly] = Npoint = 0 ;
ppolylist->ppolys[npoly] = &plinedesc->rpoints[ldesc] ;
} else {
/*ERROR*Too many paths in POLYGONE*/
Xw_set_error(32,"Xw_close_path",&ppolylist->npoly) ;
return (XW_ERROR) ;
}
}
#ifdef TRACE_DRAW_POLY
if( Xw_get_trace() > 2 ) {
printf(" Xw_close_path(%lx)\n",(long ) pwindow) ;
}
#endif
return (XW_SUCCESS) ;
}
/*
STATUS Xw_close_poly (awindow):
XW_EXT_WINDOW *awindow
Close the Polygone
returns ERROR if Polygone is empty
returns SUCCESS if successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_close_poly(void* awindow)
#else
XW_STATUS Xw_close_poly(awindow)
void *awindow ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
if( FirstPolyPoint >= 0 ) {
if( plinedesc->npoint > FirstPathPoint ) Xw_close_path(pwindow);
if( !_BINDEX ) {
int polyindex = pwindow->polyindex ;
int lineindex = pwindow->lineindex ;
GC gcpoly = (QGTILE(pwindow->qgpoly[polyindex].code)) ?
pwindow->qgpoly[polyindex].gc : NULL ;
GC gcline = (QGTYPE(pwindow->qgpoly[polyindex].code)) ?
pwindow->qgline[lineindex].gc : NULL ;
Xw_draw_pixel_polys(pwindow,ppolylist,gcpoly,gcline);
ppolylist->npoly = 0 ;
plinedesc->npoint = 0 ;
}
FirstPolyPoint = -1 ;
}
#ifdef TRACE_DRAW_POLY
if( Xw_get_trace() > 2 ) {
printf(" Xw_close_poly(%lx)\n",(long ) pwindow) ;
}
#endif
return (XW_SUCCESS) ;
}
#ifdef XW_PROTOTYPE
XW_EXT_POLY* Xw_add_polygone_structure(XW_EXT_BUFFER* pbuflist )
#else
XW_EXT_POLY* Xw_add_polygone_structure(pbuflist )
XW_EXT_BUFFER *pbuflist ;
#endif /*XW_PROTOTYPE*/
/*
Create and Insert at end one Extended polygone structure in the
polygone List
returns Extended polygone address if successful
or NULL if Bad Allocation
*/
{
XW_EXT_POLY *ppoly ;
ppoly = (XW_EXT_POLY*) Xw_malloc(sizeof(XW_EXT_POLY)) ;
if( ppoly ) {
ppoly->link = pbuflist->ppolylist ;
ppoly->isupdated = False ;
ppoly->npoly = 0 ;
pbuflist->ppolylist = ppoly ;
} else {
/*ERROR*EXT_POLYGONE allocation failed*/
Xw_set_error(34,"Xw_add_polygone_structure",NULL) ;
}
return (ppoly) ;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_del_polygone_structure(XW_EXT_BUFFER* pbuflist)
#else
XW_STATUS Xw_del_polygone_structure(pbuflist)
XW_EXT_BUFFER *pbuflist ;
#endif /*XW_PROTOTYPE*/
/*
Remove ALL Extended polygone structure in the
polygone List
SUCCESS always
*/
{
XW_EXT_POLY *ppoly,*qpoly ;
for( ppoly = pbuflist->ppolylist ; ppoly ; ppoly = qpoly ) {
qpoly = (XW_EXT_POLY*)ppoly->link ;
Xw_free(ppoly) ;
}
pbuflist->ppolylist = NULL ;
return (XW_SUCCESS) ;
}
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