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#include "project.h"
#include "cd/cd.h"
BEGIN_OBJECT(CGMc)
int r,g,b,n;
END_OBJECT(CGMc)
CREATOR(CGMc)=Obj_DefaultCreator;
DESTRUCTOR(CGMc)=Obj_DefaultDestructor;
BEGIN_OBJECT(Private)
CGMc_list cgmcs;
int maxcol;
cdImagePtr im;
FILE *file;
END_OBJECT(Private)
int cgm_sortout_color(Private p,int r,int g,int b)
{
CGMc c;
c=p->cgmcs->head;
while (c)
{
if ((c->r==r) && (c->g==g) && (c->b==b)) return(c->n);
c=c->next;
}
c=CREATE_OBJ(CGMc);
c->r=r;
c->g=g;
c->b=b;
c->n=cdImageColorAllocate(p->im,r,g,b);
Obj_Insert(p->cgmcs,c,ObjInsertHead);
return(c->n);
}
static void private_constructor(Private p)
{
char name[1024];
p->cgmcs=CREATE_LIST(CGMc);
/* We need a square image otherwise nasty things happen to
lines!*/
p->im=cdImageCreate(7100,7100);
}
static void private_destructor(Private p)
{
CGMc c;
int i;
printf("JWG: Writing cgm file \n");
Obj_Delete(p->cgmcs);
cdImageCgm(p->im,p->file);
cdImageDestroy(p->im);
free(p);
}
CREATOR(Private)=private_constructor;
DESTRUCTOR(Private)=private_destructor;
void cgm_init_private(Handle h)
{
Private p;
p=CREATE_OBJ(Private);
p->file=h->file;
h->private=(void *) p;
}
void cgm_do_line(Handle h,Jwgline *line)
{
Private p=(Private) h->private;
int i,c;
int r,g,b;
int n=line->npts;
int w;
cdPointPtr ptr,base;
r=(int) (h->pen.color.r*255.0);
g=(int) (h->pen.color.g*255.0);
b=(int) (h->pen.color.b*255.0);
c=cgm_sortout_color(p,r,g,b);
if (h->pen.width==0.0) {
w=1;
} else {
w=(int) (h->pen.width/7.10);
if (w<1) w=1;
}
cdSetLineWidth(p->im,w);
cdSetLineType(p->im,1);
cdSetLineColor(p->im,c);
ptr=base=(cdPointPtr) malloc(sizeof(struct cdPointStruct) * n);
for (i=0;i<n;++i) {
ptr->x=(int) line->data[i].x;
ptr->y=(int) line->data[i].y;
ptr++;
}
cdPolyLine(p->im,base,n);
free(base);
}
void cgm_init_xform(Handle h)
{
/* this should map 1000,1414.21 to an A4 page */
h->transform.xc=0.0;
h->transform.yc=0.0;
h->transform.a=5.0;
h->transform.d=5.0;
h->transform.b=0.0;
h->transform.c=0.0;
}
void cgm_do_poly(Handle h,Jwgline *line)
{
int i,c;
int r,g,b;
int n=line->npts;
Private p=(Private) h->private;
cdPointPtr ptr,base;
r=(int) (h->brush.color.r*255.0);
g=(int) (h->brush.color.g*255.0);
b=(int) (h->brush.color.b*255.0);
c=cgm_sortout_color(p,r,g,b);
cdSetFillStyle(p->im,1);
cdSetFillColor(p->im,c);
cdSetEdgeVis(p->im,0);
ptr=base=(cdPointPtr) malloc(sizeof(struct cdPointStruct) * n);
for (i=0;i<n;++i) {
ptr->x=(int) line->data[i].x;
ptr->y=(int) line->data[i].y;
ptr++;
}
cdPolygon(p->im,base,n);
free(base);
}
void cgm_do_text(Handle h,Jwgpos pos,char *str)
{
int color,r,g,b;
Transform t=h->transform;
Private p=(Private) h->private;
float s;
int height;
height=(int) h->ink.height;
r=(int) (h->ink.color.r*255.0);
g=(int) (h->ink.color.g*255.0);
b=(int) (h->ink.color.b*255.0);
color=cgm_sortout_color(p,r,g,b);
if (t.det<0) {
printf("JWG: Text cannot be written backwards in a CGM file\n");
return;
}
{
float a,b,c,d;
a=fabs(t.a);
b=fabs(t.b);
c=fabs(t.c);
d=fabs(t.d);
s=(a>b) ? a: ((b>c) ? b: ((c>d) ? c: d));
s=16384.0/s;
}
{
int a,b,c,d;
a=(int) (s*t.a);
b=(int) (s*t.b);
c=(int) (s*t.c);
d=(int) (s*t.d);
printf("JWG: Text vectors are up=(%d,%d) right=(%d,%d)\n",c,d,a,b);
cdSetTextOrient(p->im, c, d, a, b);
}
cdSetTextHeight(p->im,height);
cdSetTextFont(p->im,5);
cdSetTextColor(p->im,color);
cdText(p->im,(int) pos.x,(int) pos.y,str);
return;
}
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