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greg |
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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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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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} |
