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greg |
1.1 |
#ifndef lint
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greg |
1.2 |
static const char RCSid[] = "$Id: x11plot.c,v 1.1 2003/02/22 02:07:26 greg Exp $";
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greg |
1.1 |
#endif
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/*
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* X window plotting functions
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*
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* 2/26/86
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*/
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#include "meta.h"
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#include "plot.h"
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#undef TRUE
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#undef FALSE
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#include <X11/Xlib.h>
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#define BORWIDTH 5
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#define BlackPix BlackPixel(dpy,0 )
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#define WhitePix WhitePixel(dpy,0 )
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#define mapx(x) CONV(x,dxsize)
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#define mapy(y) CONV((XYSIZE-1)-(y),dysize)
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#define MAXVERT 128
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#define MAXCOLOR 65535
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/* X window fonts */
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static struct {
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char *name; /* font name */
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Font id; /* font id */
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} font[] = {
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{"9x15", 0},
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{"8x13", 0},
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{"6x13", 0},
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{"vtdwidth", 0},
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{"accordbfx", 0}
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};
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/* map to our matrix string types */
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static int fontmap[16] = {0,3,0,3,1,3,1,3,2,4,2,4,2,4,2,4};
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#define LONG_DASHED_LIST_LENGTH 2
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#define SHORT_DASHED_LIST_LENGTH 2
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#define DOTTED_LIST_LENGTH 2
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int dash_list_length[] = {
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0,
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LONG_DASHED_LIST_LENGTH,
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SHORT_DASHED_LIST_LENGTH,
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DOTTED_LIST_LENGTH,
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};
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unsigned char long_dashed[LONG_DASHED_LIST_LENGTH] = {4,7};
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unsigned char short_dashed[SHORT_DASHED_LIST_LENGTH] = {4,3};
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unsigned char dotted[DOTTED_LIST_LENGTH] = {5,2};
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unsigned char *Linetypes[] = {
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0,
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long_dashed,
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short_dashed,
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dotted,
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};
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Display *dpy;
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Window wind; /* our window */
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Colormap cmap;
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GC gc;
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Font curfont; /* current font */
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int curwidth; /* current width of lines */
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int curfill; /* current fill style (FillTiled or FillSolid) */
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int curcol; /* current color */
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int curlinetype; /* current line style */
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XGCValues gcval;
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int pixel[4];
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int dxsize, dysize; /* window size */
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int debug = False; /* use XSynchronize if true */
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init(name, geom) /* initialize window */
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char *name;
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char *geom;
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{
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char defgeom[32];
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XColor cdef,dum;
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XEvent evnt;
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int dummy;
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curfont = curfill = curcol = -1;
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curlinetype = 0;
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if ((dpy=XOpenDisplay("")) == NULL)
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error(SYSTEM, "can't open display");
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/* for debugging so we don't have to flush always */
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if (debug)
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(void) XSynchronize(dpy, True);
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dxsize = DisplayWidth(dpy,0) - 2*BORWIDTH-4;
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dysize = DisplayHeight(dpy,0) - 2*BORWIDTH-26;
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/* temporary */
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dxsize = dxsize = 800;
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adjustsize();
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sprintf(defgeom, "=%dx%d+2+25", dxsize, dysize);
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/* XUseGeometry(dpy,0,geom,defgeom,BORWIDTH,100,100,100,100,
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&xoff,&yoff,&dxsize,&dysize); */
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gc = DefaultGC(dpy,0); /* get default gc */
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cmap = DefaultColormap(dpy,0); /* and colormap */
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wind = XCreateSimpleWindow(dpy,DefaultRootWindow(dpy),0,0,dxsize,dysize,
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BORWIDTH,BlackPix,WhitePix);
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if (wind == 0)
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error(SYSTEM, "can't create window");
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XStoreName(dpy, wind, name);
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XMapRaised(dpy, wind);
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XSelectInput(dpy, wind, StructureNotifyMask | ButtonPressMask | ExposureMask);
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if (DisplayPlanes(dpy,0) < 2) { /* less than 2 color planes, use black */
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pixel[0] = pixel[1] = pixel[2] = pixel[3] = BlackPix;
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} else {
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if (XAllocNamedColor(dpy, cmap, "black", &dum, &cdef)==0)
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error(USER,"cannot allocate black!");
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pixel[0] = cdef.pixel;
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if (XAllocNamedColor(dpy, cmap, "red", &dum, &cdef)==0)
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{
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error(WARNING,"cannot allocate red");
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cdef.pixel = BlackPix;
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}
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pixel[1] = cdef.pixel;
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if (XAllocNamedColor(dpy, cmap, "green", &dum, &cdef)==0)
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{
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error(WARNING,"cannot allocate green");
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cdef.pixel = BlackPix;
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}
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pixel[2] = cdef.pixel;
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if (XAllocNamedColor(dpy, cmap, "blue", &dum, &cdef)==0)
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{
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error(WARNING,"cannot allocate blue");
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cdef.pixel = BlackPix;
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}
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pixel[3] = cdef.pixel;
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}
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while (1)
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{
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XNextEvent(dpy, &evnt);
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if (evnt.type == ConfigureNotify) /* wait for first ConfigureNotify */
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break;
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}
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dxsize = evnt.xconfigure.width;
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dysize = evnt.xconfigure.height;
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adjustsize();
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while (1)
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{
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XNextEvent(dpy, &evnt);
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if (evnt.type == Expose) /* wait for first Expose */
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break;
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}
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}
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adjustsize()
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{
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if (dxsize > dysize)
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dxsize = dysize;
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else
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dysize = dxsize;
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}
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greg |
1.2 |
void
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greg |
1.1 |
endpage() /* end of this graph */
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{
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XEvent evnt;
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int quit=False;
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XFlush(dpy);
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XBell(dpy, 0);
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while ( !quit ) {
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XNextEvent(dpy, &evnt);
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switch (evnt.type) {
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case ConfigureNotify:
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dxsize = evnt.xconfigure.width;
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dysize = evnt.xconfigure.height;
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adjustsize();
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break;
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case Expose:
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replay((int)((long)XYSIZE*evnt.xexpose.x/dxsize),
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(int)((long)XYSIZE*(dysize-evnt.xexpose.y-evnt.xexpose.height)/dysize),
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(int)((long)XYSIZE*(evnt.xexpose.x+evnt.xexpose.width)/dxsize),
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(int)((long)XYSIZE*(dysize-evnt.xexpose.y)/dysize));
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break;
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case ButtonPress:
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quit = True;
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break;
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} /* switch */
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} /* for */
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XClearWindow(dpy, wind);
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}
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greg |
1.2 |
void
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greg |
1.1 |
printstr(p) /* output a string */
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register PRIMITIVE *p;
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{
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int fn;
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int col;
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fn = fontmap[(p->arg0 >> 2) & 017]; /* get font number */
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/* set font */
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if (font[fn].id == 0)
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{
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font[fn].id = XLoadFont(dpy, font[fn].name);
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if (font[fn].id == 0)
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{
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sprintf(errmsg, "can't open font \"%s\"", font[fn].name);
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error(SYSTEM, errmsg);
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}
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}
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col = p->arg0 & 03;
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if (curcol != col)
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{
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curcol = col;
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XSetForeground(dpy, gc, pixel[col]);
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}
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if (curfont != font[fn].id)
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{
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curfont = font[fn].id;
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XSetFont(dpy, gc, curfont);
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}
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XDrawImageString(dpy, wind, gc, mapx(p->xy[XMN]), mapy(p->xy[YMN]),
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p->args, strlen(p->args));
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}
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greg |
1.2 |
void
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greg |
1.1 |
plotlseg(p) /* plot a line segment */
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register PRIMITIVE *p;
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{
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int x1, y1, x2, y2;
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int linetype, ps, pw;
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int col;
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linetype = (p->arg0 >> 4) & 03; /* line style (solid, dashed, etc) */
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col = p->arg0 & 03; /* color */
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| 262 |
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ps = WIDTH((p->arg0 >> 2) & 03);
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pw = CONV((ps)/2, dxsize);
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x1 = mapx(p->xy[XMN]);
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x2 = mapx(p->xy[XMX]);
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if (p->arg0 & 0100) { /* reverse slope */
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y1 = mapy(p->xy[YMX]);
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y2 = mapy(p->xy[YMN]);
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| 270 |
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} else {
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y1 = mapy(p->xy[YMN]);
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y2 = mapy(p->xy[YMX]);
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| 273 |
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}
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| 275 |
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if (curcol != col || curwidth != pw)
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| 276 |
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{
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| 277 |
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curcol = col;
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| 278 |
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gcval.foreground = pixel[col];
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| 279 |
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curwidth = pw;
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| 280 |
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gcval.line_width = pw*2+1; /* convert to thickness in pixels */
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| 281 |
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gcval.join_style = JoinRound;
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| 282 |
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XChangeGC(dpy, gc, GCJoinStyle|GCLineWidth|GCForeground, &gcval);
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| 283 |
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}
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| 284 |
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if (curlinetype != linetype)
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| 285 |
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{
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| 286 |
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curlinetype = linetype;
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| 287 |
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if (linetype==0)
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| 288 |
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gcval.line_style = LineSolid;
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| 289 |
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else
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| 290 |
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{
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| 291 |
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gcval.line_style = LineOnOffDash;
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| 292 |
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XSetDashes(dpy, gc, 0, Linetypes[linetype], dash_list_length[linetype]);
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| 293 |
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}
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| 294 |
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XChangeGC(dpy, gc, GCLineStyle, &gcval);
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| 295 |
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}
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| 296 |
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XDrawLine(dpy,wind,gc,x1,y1,x2,y2);
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| 297 |
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}
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| 298 |
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| 299 |
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| 300 |
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#ifdef nyet
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| 301 |
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| 302 |
greg |
1.2 |
static void
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| 303 |
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fill(xmin,ymin,xmax,ymax,pm)
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| 304 |
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int xmin,ymin,xmax,ymax;
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| 305 |
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Pixmap pm;
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| 306 |
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{
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| 307 |
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if (pm != 0 && curpat != pm)
|
| 308 |
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{
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| 309 |
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XSetTile(dpy, gc, pm);
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| 310 |
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curpat = pm;
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| 311 |
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}
|
| 312 |
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XFillRectangle(dpy, wind, gc, xmin, ymin, xmax-xmin+1, ymax-ymin+1);
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| 313 |
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}
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| 314 |
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| 315 |
greg |
1.1 |
fillrect(p) /* fill a rectangle */
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| 316 |
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| 317 |
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register PRIMITIVE *p;
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| 318 |
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| 319 |
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{
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| 320 |
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int left, right, top, bottom;
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| 321 |
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| 322 |
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left = mapx(p->xy[XMN]);
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| 323 |
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bottom = mapy(p->xy[YMN]);
|
| 324 |
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right = mapx(p->xy[XMX]);
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| 325 |
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top = mapy(p->xy[YMX]);
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| 326 |
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| 327 |
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fill(left, top, right, bottom, pixpat(pati[(p->arg0>>2)&03],p->arg0&03));
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| 328 |
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| 329 |
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}
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| 330 |
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| 331 |
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| 332 |
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| 333 |
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| 334 |
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filltri(p) /* fill a triangle */
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| 335 |
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| 336 |
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register PRIMITIVE *p;
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| 337 |
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| 338 |
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{
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| 339 |
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Vertex v[4];
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| 340 |
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int left, right, top, bottom;
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| 341 |
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| 342 |
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left = mapx(p->xy[XMN]);
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| 343 |
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right = mapx(p->xy[XMX]);
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| 344 |
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top = mapy(p->xy[YMX]);
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| 345 |
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bottom = mapy(p->xy[YMN]);
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| 346 |
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| 347 |
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switch (p->arg0 & 060) {
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| 348 |
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case 0: /* right (& down) */
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| 349 |
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v[0].x = left; v[0].y = bottom;
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| 350 |
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v[1].x = right; v[1].y = bottom;
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| 351 |
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v[2].x = right; v[2].y = top;
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| 352 |
|
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break;
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| 353 |
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case 020: /* up */
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| 354 |
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v[0].x = right; v[0].y = bottom;
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| 355 |
|
|
v[1].x = right; v[1].y = top;
|
| 356 |
|
|
v[2].x = left; v[2].y = top;
|
| 357 |
|
|
break;
|
| 358 |
|
|
case 040: /* left */
|
| 359 |
|
|
v[0].x = right; v[0].y = top;
|
| 360 |
|
|
v[1].x = left; v[1].y = top;
|
| 361 |
|
|
v[2].x = left; v[2].y = bottom;
|
| 362 |
|
|
break;
|
| 363 |
|
|
case 060: /* down */
|
| 364 |
|
|
v[0].x = left; v[0].y = top;
|
| 365 |
|
|
v[1].x = left; v[1].y = bottom;
|
| 366 |
|
|
v[2].x = right; v[2].y = bottom;
|
| 367 |
|
|
break;
|
| 368 |
|
|
}
|
| 369 |
|
|
v[3].x = v[0].x; v[3].y = v[0].y;
|
| 370 |
|
|
v[0].flags = v[1].flags = v[2].flags = v[3].flags = 0;
|
| 371 |
|
|
if (curfill != FillTiled)
|
| 372 |
|
|
{
|
| 373 |
|
|
XSetFillStyle(dpy, gc, FillTiled);
|
| 374 |
|
|
curfill = FillTiled;
|
| 375 |
|
|
XSetTile(dpy, gc, pixpat(pati[(p->arg0>>2)&03],p->arg0&03));
|
| 376 |
|
|
}
|
| 377 |
|
|
XDrawFIlled(dpy, wind, gc, v, 4);
|
| 378 |
|
|
}
|
| 379 |
|
|
|
| 380 |
|
|
|
| 381 |
|
|
|
| 382 |
|
|
xform(xp, yp, p) /* transform a point according to p */
|
| 383 |
|
|
|
| 384 |
|
|
register int *xp, *yp;
|
| 385 |
|
|
register PRIMITIVE *p;
|
| 386 |
|
|
|
| 387 |
|
|
{
|
| 388 |
|
|
int x, y;
|
| 389 |
|
|
|
| 390 |
|
|
switch (p->arg0 & 060) {
|
| 391 |
|
|
case 0: /* right */
|
| 392 |
|
|
x = *xp;
|
| 393 |
|
|
y = *yp;
|
| 394 |
|
|
break;
|
| 395 |
|
|
case 020: /* up */
|
| 396 |
|
|
x = (XYSIZE-1) - *yp;
|
| 397 |
|
|
y = *xp;
|
| 398 |
|
|
break;
|
| 399 |
|
|
case 040: /* left */
|
| 400 |
|
|
x = (XYSIZE-1) - *xp;
|
| 401 |
|
|
y = (XYSIZE-1) - *yp;
|
| 402 |
|
|
break;
|
| 403 |
|
|
case 060: /* down */
|
| 404 |
|
|
x = *yp;
|
| 405 |
|
|
y = (XYSIZE-1) - *xp;
|
| 406 |
|
|
break;
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
*xp = CONV(x, p->xy[XMX] - p->xy[XMN]) + p->xy[XMN];
|
| 410 |
|
|
*yp = CONV(y, p->xy[YMX] - p->xy[YMN]) + p->xy[YMN];
|
| 411 |
|
|
|
| 412 |
|
|
}
|
| 413 |
|
|
|
| 414 |
|
|
|
| 415 |
|
|
|
| 416 |
|
|
fillpoly(p) /* fill a polygon */
|
| 417 |
|
|
|
| 418 |
|
|
register PRIMITIVE *p;
|
| 419 |
|
|
|
| 420 |
|
|
{
|
| 421 |
|
|
int x0, y0, curx, cury;
|
| 422 |
|
|
PolyHandle polyh;
|
| 423 |
|
|
char *nextscan();
|
| 424 |
|
|
register char *s;
|
| 425 |
|
|
|
| 426 |
|
|
polyh = OpenPoly();
|
| 427 |
|
|
|
| 428 |
|
|
if ((s = nextscan(nextscan(p->args, "%d", &x0), "%d", &y0)) == NULL)
|
| 429 |
|
|
error(USER, "illegal polygon spec in fillpoly");
|
| 430 |
|
|
|
| 431 |
|
|
xform(&x0, &y0, p);
|
| 432 |
|
|
x0 = mapx(x0); y0 = mapy(y0);
|
| 433 |
|
|
MoveTo(x0, y0);
|
| 434 |
|
|
|
| 435 |
|
|
while ((s = nextscan(nextscan(s, "%d", &curx), "%d", &cury)) != NULL) {
|
| 436 |
|
|
xform(&curx, &cury, p);
|
| 437 |
|
|
curx = mapx(curx); cury = mapy(cury);
|
| 438 |
|
|
LineTo(curx, cury);
|
| 439 |
|
|
}
|
| 440 |
|
|
LineTo(x0, y0);
|
| 441 |
|
|
|
| 442 |
|
|
ClosePoly();
|
| 443 |
|
|
|
| 444 |
|
|
if (p->arg0 & 0100) { /* draw border */
|
| 445 |
|
|
if (curpat != 0) {
|
| 446 |
|
|
PenPat(macpat[0]);
|
| 447 |
|
|
curpat = 0;
|
| 448 |
|
|
}
|
| 449 |
|
|
if (curpsiz != 1) {
|
| 450 |
|
|
PenSize(1, 1);
|
| 451 |
|
|
curpsiz = 1;
|
| 452 |
|
|
}
|
| 453 |
|
|
if (curpmod != patOr) {
|
| 454 |
|
|
PenMode(patOr);
|
| 455 |
|
|
curpmod = patOr;
|
| 456 |
|
|
}
|
| 457 |
|
|
FramePoly(polyh);
|
| 458 |
|
|
}
|
| 459 |
|
|
|
| 460 |
|
|
setfill(p->arg0 & 077);
|
| 461 |
|
|
PaintPoly(polyh);
|
| 462 |
|
|
KillPoly(polyh);
|
| 463 |
|
|
xpos = -1;
|
| 464 |
|
|
ypos = -1;
|
| 465 |
|
|
|
| 466 |
|
|
}
|
| 467 |
|
|
|
| 468 |
|
|
#else
|
| 469 |
|
|
|
| 470 |
greg |
1.2 |
void filltri(PRIMITIVE *p) {}
|
| 471 |
|
|
void fillpoly(PRIMITIVE *p) {}
|
| 472 |
|
|
void fillrect(PRIMITIVE *p) {}
|
| 473 |
greg |
1.1 |
|
| 474 |
|
|
#endif
|
