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#ifndef lint
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static const char RCSid[] = "$Id: mqdraw.c,v 1.1 2003/02/22 02:07:26 greg Exp $";
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#endif
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/*
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* Interface to MacIntosh QuickDraw routines
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*
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* 6/5/85
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*/
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#include "meta.h"
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#include "macplot.h"
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static short curpat = -1; /* current line drawing pattern */
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static short curpsiz = -1; /* current pen size */
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static short curpmod = -1; /* current pen mode */
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static int xpos = -1, /* current position */
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ypos = -1;
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printstr(p) /* output a string */
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register PRIMITIVE *p;
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{
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char *ctop(), *ptoc();
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MoveTo(mapx(p->xy[XMN]), mapy(p->xy[YMN]));
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DrawString(ctop(p->args));
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ptoc(p->args);
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xpos = -1;
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ypos = -1;
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}
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plotlseg(p) /* plot a line segment */
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register PRIMITIVE *p;
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{
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static short right = FALSE;
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int x1, x2, y1, y2;
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short pp, ps;
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pp = (p->arg0 >> 4) & 03;
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if (p->arg0 & 0100 && pp != 0)
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pp += 03;
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if (pp != curpat) {
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PenPat(macpat[pp]);
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curpat = pp;
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}
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ps = WIDTH((p->arg0 >> 2) & 03);
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if (ps != curpsiz) {
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PenSize(CONV(ps, dxsize) + 1, CONV(ps, dysize) + 1);
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curpsiz = ps;
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}
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if (curpmod != patOr) {
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PenMode(patOr);
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curpmod = patOr;
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}
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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) {
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y1 = mapy(p->xy[YMX]);
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y2 = mapy(p->xy[YMN]);
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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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}
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if (x1 == xpos && y1 == ypos) {
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LineTo(x2, y2);
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xpos = x2;
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ypos = y2;
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} else if (x2 == xpos && y2 == ypos) {
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LineTo(x1, y1);
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xpos = x1;
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ypos = y1;
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} else if (right = !right) {
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MoveTo(x1, y1);
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LineTo(x2, y2);
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xpos = x2;
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ypos = y2;
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} else {
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MoveTo(x2, y2);
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LineTo(x1, y1);
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xpos = x1;
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ypos = y1;
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}
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}
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setfill(a0) /* set filling mode */
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register int a0;
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{
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short pp, pm;
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pp = pati[(a0 >> 2) & 03];
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if (pp != curpat) {
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PenPat(macpat[pp]);
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curpat = pp;
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}
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if (a0 & 0100)
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pm = patXor;
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else
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pm = patOr;
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if (pm != curpmod) {
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PenMode(pm);
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curpmod = pm;
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}
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}
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fillrect(p) /* fill a rectangle */
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register PRIMITIVE *p;
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{
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static Rect r;
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r.left = mapx(p->xy[XMN]);
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r.right = mapx(p->xy[XMX]);
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r.top = mapy(p->xy[YMX]);
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r.bottom = mapy(p->xy[YMN]);
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setfill(p->arg0);
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PaintRect(&r);
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}
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filltri(p) /* fill a triangle */
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register PRIMITIVE *p;
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{
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PolyHandle polyh;
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int x[4], y[4];
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int skipv;
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register int i;
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polyh = OpenPoly();
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x[0] = x[1] = mapx(p->xy[XMN]);
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x[2] = x[3] = mapx(p->xy[XMX]);
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y[1] = y[2] = mapy(p->xy[YMN]);
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y[0] = y[3] = mapy(p->xy[YMX]);
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skipv = (p->arg0 >> 4) & 03;
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if (skipv == 3)
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MoveTo(x[2], y[2]);
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else
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MoveTo(x[3], y[3]);
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for (i = 0; i < 4; i++)
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if (i != skipv)
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LineTo(x[i], y[i]);
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ClosePoly();
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setfill(p->arg0);
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PaintPoly(polyh);
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KillPoly(polyh);
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xpos = -1;
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ypos = -1;
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}
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xform(xp, yp, p) /* transform a point according to p */
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register int *xp, *yp;
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register PRIMITIVE *p;
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{
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int x, y;
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switch (p->arg0 & 060) {
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case 0: /* right */
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x = *xp;
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y = *yp;
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break;
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case 020: /* up */
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x = (XYSIZE-1) - *yp;
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y = *xp;
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break;
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case 040: /* left */
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x = (XYSIZE-1) - *xp;
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y = (XYSIZE-1) - *yp;
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break;
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case 060: /* down */
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x = *yp;
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y = (XYSIZE-1) - *xp;
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break;
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}
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*xp = CONV(x, p->xy[XMX] - p->xy[XMN]) + p->xy[XMN];
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*yp = CONV(y, p->xy[YMX] - p->xy[YMN]) + p->xy[YMN];
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}
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fillpoly(p) /* fill a polygon */
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register PRIMITIVE *p;
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{
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int x0, y0, curx, cury;
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PolyHandle polyh;
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char *nextscan();
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register char *s;
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polyh = OpenPoly();
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if ((s = nextscan(nextscan(p->args, "%d", &x0), "%d", &y0)) == NULL)
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error(USER, "illegal polygon spec in fillpoly");
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xform(&x0, &y0, p);
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x0 = mapx(x0); y0 = mapy(y0);
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MoveTo(x0, y0);
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while ((s = nextscan(nextscan(s, "%d", &curx), "%d", &cury)) != NULL) {
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xform(&curx, &cury, p);
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curx = mapx(curx); cury = mapy(cury);
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LineTo(curx, cury);
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}
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LineTo(x0, y0);
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ClosePoly();
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if (p->arg0 & 0100) { /* draw border */
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if (curpat != 0) {
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PenPat(macpat[0]);
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curpat = 0;
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}
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if (curpsiz != 1) {
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PenSize(1, 1);
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curpsiz = 1;
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}
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if (curpmod != patOr) {
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PenMode(patOr);
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curpmod = patOr;
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}
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FramePoly(polyh);
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}
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setfill(p->arg0 & 077);
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PaintPoly(polyh);
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KillPoly(polyh);
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xpos = -1;
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ypos = -1;
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}
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