The R Project SVN – R – Diff – /trunk/src/main/plotmath.c



{
  if (section == 1)
    return 243;
  else if (section == 2)
    return 244;
  else
    return 245;
}
 
static int groupOpenAscii()
{

}
 
static int radicalAtom(SEXP expr)
{
	return symbolAtom(expr) &&
	    (symbolMatch(expr, "root") ||
	     symbolMatch(expr, "sqrt"));
}
 
static int absAtom(SEXP expr)
{

 
static void boldFont() { setFont(2); }
static void italicFont() { setFont(3); }
static void plainFont() { setFont(1); }
static void boldItalicFont() { setFont(4); }
 
static int isItalic() { return (getFont() == 3 || getFont() == 4); }
 
static int atomFontFace(SEXP expr)
{
	int fontFace = 1;
	if (symbolAtom(expr)) {
		if (greekSymbol(expr) ||

static double currentY;
static double currentAngle;
static double cosAngle;
static double sinAngle;
 
		/*
		   // convert currentX and currentY from 0 angle
		   // to and currentAngle
		 */
static double convertedX()
{

		mathDevice->gp.font = 1;
	else
		mathDevice->gp.font = 5;
	asciiStr[0] = ascii;
	asciiStr[1] = '\0';
	GText(convertedX(), convertedY(), INCHES, asciiStr,
	      0.0, 0.0, currentAngle, mathDevice);
	moveAcross(GStrWidth(asciiStr, metricUnit, mathDevice));
}
 
/* code for character atoms */

}
 
static void drawChar(char *str, SEXP expr)
{
	mathDevice->gp.font = atomFontFace(expr);
	GText(convertedX(), convertedY(), INCHES, str,
	      0.0, 0.0, currentAngle, mathDevice);
	moveAcross(GStrWidth(str, metricUnit, mathDevice));
}
 
/* code for symbol atoms */

 
static void drawCorrectionWithin(SEXP expr)
{
  if (isItalic() && !nonItalicExpression(expr))
    moveAcross(italicCorrection(expr));
}
 
	/* correction between expressions checks current font and font */
	/* of each expression */
 
static BBOX correctionBetweenBBox(SEXP expr1, SEXP expr2)

	operand1 = CADR(expr);
        setGapCEX();
	if(length(expr) == 3) {
		operand2 = CADDR(expr);
		if (multiplicationOperator(operator))
			middleBBox =
			  correctionBetweenBBox(operand1, operand2);
		else
			middleBBox =
                          combineBBoxes(
                            gapBBox(binGapBefore(operand1)),
			    combineBBoxes(atomBBox(operator),
					  gapBBox(binGapAfter(operand2))));
 

	operand1 = CADR(expr);
	setGapCEX();
	if(length(expr) == 3) {
		operand2 = CADDR(expr);
		drawElement(operand1);
		if (multiplicationOperator(operator))
		  drawGap(binGapBetween(operand1, operand2));
		else {
			drawGap(binGapBefore(operand1));
			drawAtom(operator);
			drawGap(binGapAfter(operand2));

  if (integralOperator(operator))
    return combineAlignedBBoxes(
	     shiftBBox(asciiBBox(integralAscii(1)), integralTopShift()),
	     combineAlignedBBoxes(asciiBBox(integralAscii(2)),
				  shiftBBox(asciiBBox(integralAscii(3)),
					    integralBottomShift())));
  else
    return asciiBBox(operatorAscii(operator));
}
 
static int useRelGap = 1;
 
static BBOX operatorLimitBBox(SEXP limit)
{
  float cexSaved = mathDevice->gp.cex;
  BBOX limitBBox;
 

  setGapCEX();
 
  if (length(expr) > 1) {
    body = CADR(expr);
    bodyBBox = combineBBoxes(opBBox,
                             combineBBoxes(gapBBox(operatorGap(body)),
					   elementBBox(body)));
 
    if (length(expr) > 2) {
      lower = CADDR(expr);
      lowerBBox = operatorLimitBBox(lower);
 
      if (length(expr) > 3) {

		   operatorLowerShift(operator, lower)));
    }
    else
      return bodyBBox;
  }
  else
    error("Invalid Formula\n");
 
}
 
static void drawTheOperator(SEXP operator)
{
  if (integralOperator(operator)) {

    drawAscii(integralAscii(2));
  }
  else
    drawAscii(operatorAscii(operator));
}
 
static void drawOperatorLimit(SEXP limit)
{
  useRelGap = 0;
  drawScriptElement(limit);
  useRelGap = 1;

  SEXP lower, upper;
  double savedX = currentX;
  double savedY = currentY;
 
  setGapCEX();
 
  if (length(expr) > 2) {
    lower = CADDR(expr);
 
    if (length(expr) > 3) {
      upper = CADDDR(expr);

		if (i < numParams - 1)
			resultBBox = combineBBoxes(resultBBox,
				   combineBBoxes(asciiBBox(commaAscii()),
					       asciiBBox(spaceAscii())));
	}
	return combineBBoxes(resultBBox,
			     combineBBoxes(correctionWithinBBox(lastTerm),
					   asciiBBox(groupCloseAscii())));
}
 
static void drawExpression(SEXP expr)

  lastArg = CAR(args);
  args = CDR(args);
 
  for (i=1; i<numArgs; i++) {
    result = combineBBoxes(
	       result,
	       combineBBoxes(correctionBetweenBBox(lastArg, CAR(args)),
			     elementBBox(CAR(args))));
    lastArg = CAR(args);
    args = CDR(args);
  }

{
        BBOX exprBBox = elementBBox(expr);
        double w  = exprBBox.width;
	if (units == INCHES)
		return w;
	else
		return GConvertXUnits(w, INCHES, units, dd);
}
 
#define ABS(a)  ((a)>=0 ? (a) : -(a))
 

		return GConvertYUnits(h, INCHES, units, dd);
}
 
		/* functions forming the API */
 
void GMathText(double x, double y, int coords, SEXP expr,
	       double xc, double yc, double rot, DevDesc *dd)
{
	BBOX expressionBBox;
 
	mathDevice = dd;

Rev 1009	Rev 1016
Line 88...	Line 88...
88	`{`	88	`{`
89	`if (section == 1)`	89	`if (section == 1)`
90	`return 243;`	90	`return 243;`
91	`else if (section == 2)`	91	`else if (section == 2)`
92	`return 244;`	92	`return 244;`
93	`else`	93	`else`
94	`return 245;`	94	`return 245;`
95	`}`	95	`}`
96		96
97	`static int groupOpenAscii()`	97	`static int groupOpenAscii()`
98	`{`	98	`{`
Line 326...	Line 326...
326	`}`	326	`}`
327		327
328	`static int radicalAtom(SEXP expr)`	328	`static int radicalAtom(SEXP expr)`
329	`{`	329	`{`
330	`return symbolAtom(expr) &&`	330	`return symbolAtom(expr) &&`
331	`(symbolMatch(expr, "root") \|\|`	331	`(symbolMatch(expr, "root") \|\|`
332	`symbolMatch(expr, "sqrt"));`	332	`symbolMatch(expr, "sqrt"));`
333	`}`	333	`}`
334		334
335	`static int absAtom(SEXP expr)`	335	`static int absAtom(SEXP expr)`
336	`{`	336	`{`
Line 401...	Line 401...
401		401
402	`static void boldFont() { setFont(2); }`	402	`static void boldFont() { setFont(2); }`
403	`static void italicFont() { setFont(3); }`	403	`static void italicFont() { setFont(3); }`
404	`static void plainFont() { setFont(1); }`	404	`static void plainFont() { setFont(1); }`
405	`static void boldItalicFont() { setFont(4); }`	405	`static void boldItalicFont() { setFont(4); }`
406		406
407	`static int isItalic() { return (getFont() == 3 \|\| getFont() == 4); }`	407	`static int isItalic() { return (getFont() == 3 \|\| getFont() == 4); }`
408		408
409	`static int atomFontFace(SEXP expr)`	409	`static int atomFontFace(SEXP expr)`
410	`{`	410	`{`
411	`int fontFace = 1;`	411	`int fontFace = 1;`
412	`if (symbolAtom(expr)) {`	412	`if (symbolAtom(expr)) {`
413	`if (greekSymbol(expr) \|\|`	413	`if (greekSymbol(expr) \|\|`
Line 949...	Line 949...
949	`static double currentY;`	949	`static double currentY;`
950	`static double currentAngle;`	950	`static double currentAngle;`
951	`static double cosAngle;`	951	`static double cosAngle;`
952	`static double sinAngle;`	952	`static double sinAngle;`
953		953
954	`/*`	954	`/*`
955	`// convert currentX and currentY from 0 angle`	955	`// convert currentX and currentY from 0 angle`
956	`// to and currentAngle`	956	`// to and currentAngle`
957	`*/`	957	`*/`
958	`static double convertedX()`	958	`static double convertedX()`
959	`{`	959	`{`
Line 1009...	Line 1009...
1009	`mathDevice->gp.font = 1;`	1009	`mathDevice->gp.font = 1;`
1010	`else`	1010	`else`
1011	`mathDevice->gp.font = 5;`	1011	`mathDevice->gp.font = 5;`
1012	`asciiStr[0] = ascii;`	1012	`asciiStr[0] = ascii;`
1013	`asciiStr[1] = '\0';`	1013	`asciiStr[1] = '\0';`
1014	`GText(convertedX(), convertedY(), INCHES, asciiStr,`	1014	`GText(convertedX(), convertedY(), INCHES, asciiStr,`
1015	`0.0, 0.0, currentAngle, mathDevice);`	1015	`0.0, 0.0, currentAngle, mathDevice);`
1016	`moveAcross(GStrWidth(asciiStr, metricUnit, mathDevice));`	1016	`moveAcross(GStrWidth(asciiStr, metricUnit, mathDevice));`
1017	`}`	1017	`}`
1018		1018
1019	`/* code for character atoms */`	1019	`/* code for character atoms */`
Line 1031...	Line 1031...
1031	`}`	1031	`}`
1032		1032
1033	`static void drawChar(char *str, SEXP expr)`	1033	`static void drawChar(char *str, SEXP expr)`
1034	`{`	1034	`{`
1035	`mathDevice->gp.font = atomFontFace(expr);`	1035	`mathDevice->gp.font = atomFontFace(expr);`
1036	`GText(convertedX(), convertedY(), INCHES, str,`	1036	`GText(convertedX(), convertedY(), INCHES, str,`
1037	`0.0, 0.0, currentAngle, mathDevice);`	1037	`0.0, 0.0, currentAngle, mathDevice);`
1038	`moveAcross(GStrWidth(str, metricUnit, mathDevice));`	1038	`moveAcross(GStrWidth(str, metricUnit, mathDevice));`
1039	`}`	1039	`}`
1040		1040
1041	`/* code for symbol atoms */`	1041	`/* code for symbol atoms */`
Line 1124...	Line 1124...
1124		1124
1125	`static void drawCorrectionWithin(SEXP expr)`	1125	`static void drawCorrectionWithin(SEXP expr)`
1126	`{`	1126	`{`
1127	`if (isItalic() && !nonItalicExpression(expr))`	1127	`if (isItalic() && !nonItalicExpression(expr))`
1128	`moveAcross(italicCorrection(expr));`	1128	`moveAcross(italicCorrection(expr));`
1129	`}`	1129	`}`
1130		1130
1131	`/* correction between expressions checks current font and font */`	1131	`/* correction between expressions checks current font and font */`
1132	`/* of each expression */`	1132	`/* of each expression */`
1133		1133
1134	`static BBOX correctionBetweenBBox(SEXP expr1, SEXP expr2)`	1134	`static BBOX correctionBetweenBBox(SEXP expr1, SEXP expr2)`
Line 1230...	Line 1230...
1230	`operand1 = CADR(expr);`	1230	`operand1 = CADR(expr);`
1231	`setGapCEX();`	1231	`setGapCEX();`
1232	`if(length(expr) == 3) {`	1232	`if(length(expr) == 3) {`
1233	`operand2 = CADDR(expr);`	1233	`operand2 = CADDR(expr);`
1234	`if (multiplicationOperator(operator))`	1234	`if (multiplicationOperator(operator))`
1235	`middleBBox =`	1235	`middleBBox =`
1236	`correctionBetweenBBox(operand1, operand2);`	1236	`correctionBetweenBBox(operand1, operand2);`
1237	`else`	1237	`else`
1238	`middleBBox =`	1238	`middleBBox =`
1239	`combineBBoxes(`	1239	`combineBBoxes(`
1240	`gapBBox(binGapBefore(operand1)),`	1240	`gapBBox(binGapBefore(operand1)),`
1241	`combineBBoxes(atomBBox(operator),`	1241	`combineBBoxes(atomBBox(operator),`
1242	`gapBBox(binGapAfter(operand2))));`	1242	`gapBBox(binGapAfter(operand2))));`
1243		1243
Line 1261...	Line 1261...
1261	`operand1 = CADR(expr);`	1261	`operand1 = CADR(expr);`
1262	`setGapCEX();`	1262	`setGapCEX();`
1263	`if(length(expr) == 3) {`	1263	`if(length(expr) == 3) {`
1264	`operand2 = CADDR(expr);`	1264	`operand2 = CADDR(expr);`
1265	`drawElement(operand1);`	1265	`drawElement(operand1);`
1266	`if (multiplicationOperator(operator))`	1266	`if (multiplicationOperator(operator))`
1267	`drawGap(binGapBetween(operand1, operand2));`	1267	`drawGap(binGapBetween(operand1, operand2));`
1268	`else {`	1268	`else {`
1269	`drawGap(binGapBefore(operand1));`	1269	`drawGap(binGapBefore(operand1));`
1270	`drawAtom(operator);`	1270	`drawAtom(operator);`
1271	`drawGap(binGapAfter(operand2));`	1271	`drawGap(binGapAfter(operand2));`
Line 1623...	Line 1623...
1623	`if (integralOperator(operator))`	1623	`if (integralOperator(operator))`
1624	`return combineAlignedBBoxes(`	1624	`return combineAlignedBBoxes(`
1625	`shiftBBox(asciiBBox(integralAscii(1)), integralTopShift()),`	1625	`shiftBBox(asciiBBox(integralAscii(1)), integralTopShift()),`
1626	`combineAlignedBBoxes(asciiBBox(integralAscii(2)),`	1626	`combineAlignedBBoxes(asciiBBox(integralAscii(2)),`
1627	`shiftBBox(asciiBBox(integralAscii(3)),`	1627	`shiftBBox(asciiBBox(integralAscii(3)),`
1628	`integralBottomShift())));`	1628	`integralBottomShift())));`
1629	`else`	1629	`else`
1630	`return asciiBBox(operatorAscii(operator));`	1630	`return asciiBBox(operatorAscii(operator));`
1631	`}`	1631	`}`
1632		1632
1633	`static int useRelGap = 1;`	1633	`static int useRelGap = 1;`
1634		1634
1635	`static BBOX operatorLimitBBox(SEXP limit)`	1635	`static BBOX operatorLimitBBox(SEXP limit)`
1636	`{`	1636	`{`
1637	`float cexSaved = mathDevice->gp.cex;`	1637	`float cexSaved = mathDevice->gp.cex;`
1638	`BBOX limitBBox;`	1638	`BBOX limitBBox;`
1639		1639
Line 1655...	Line 1655...
1655	`setGapCEX();`	1655	`setGapCEX();`
1656		1656
1657	`if (length(expr) > 1) {`	1657	`if (length(expr) > 1) {`
1658	`body = CADR(expr);`	1658	`body = CADR(expr);`
1659	`bodyBBox = combineBBoxes(opBBox,`	1659	`bodyBBox = combineBBoxes(opBBox,`
1660	`combineBBoxes(gapBBox(operatorGap(body)),`	1660	`combineBBoxes(gapBBox(operatorGap(body)),`
1661	`elementBBox(body)));`	1661	`elementBBox(body)));`
1662		1662
1663	`if (length(expr) > 2) {`	1663	`if (length(expr) > 2) {`
1664	`lower = CADDR(expr);`	1664	`lower = CADDR(expr);`
1665	`lowerBBox = operatorLimitBBox(lower);`	1665	`lowerBBox = operatorLimitBBox(lower);`
1666		1666
1667	`if (length(expr) > 3) {`	1667	`if (length(expr) > 3) {`
Line 1698...	Line 1698...
1698	`operatorLowerShift(operator, lower)));`	1698	`operatorLowerShift(operator, lower)));`
1699	`}`	1699	`}`
1700	`else`	1700	`else`
1701	`return bodyBBox;`	1701	`return bodyBBox;`
1702	`}`	1702	`}`
1703	`else`	1703	`else`
1704	`error("Invalid Formula\n");`	1704	`error("Invalid Formula\n");`
1705		1705
1706	`}`	1706	`}`
1707		1707
1708	`static void drawTheOperator(SEXP operator)`	1708	`static void drawTheOperator(SEXP operator)`
1709	`{`	1709	`{`
1710	`if (integralOperator(operator)) {`	1710	`if (integralOperator(operator)) {`
Line 1719...	Line 1719...
1719	`drawAscii(integralAscii(2));`	1719	`drawAscii(integralAscii(2));`
1720	`}`	1720	`}`
1721	`else`	1721	`else`
1722	`drawAscii(operatorAscii(operator));`	1722	`drawAscii(operatorAscii(operator));`
1723	`}`	1723	`}`
1724		1724
1725	`static void drawOperatorLimit(SEXP limit)`	1725	`static void drawOperatorLimit(SEXP limit)`
1726	`{`	1726	`{`
1727	`useRelGap = 0;`	1727	`useRelGap = 0;`
1728	`drawScriptElement(limit);`	1728	`drawScriptElement(limit);`
1729	`useRelGap = 1;`	1729	`useRelGap = 1;`
Line 1736...	Line 1736...
1736	`SEXP lower, upper;`	1736	`SEXP lower, upper;`
1737	`double savedX = currentX;`	1737	`double savedX = currentX;`
1738	`double savedY = currentY;`	1738	`double savedY = currentY;`
1739		1739
1740	`setGapCEX();`	1740	`setGapCEX();`
1741		1741
1742	`if (length(expr) > 2) {`	1742	`if (length(expr) > 2) {`
1743	`lower = CADDR(expr);`	1743	`lower = CADDR(expr);`
1744		1744
1745	`if (length(expr) > 3) {`	1745	`if (length(expr) > 3) {`
1746	`upper = CADDDR(expr);`	1746	`upper = CADDDR(expr);`
Line 1877...	Line 1877...
1877	`if (i < numParams - 1)`	1877	`if (i < numParams - 1)`
1878	`resultBBox = combineBBoxes(resultBBox,`	1878	`resultBBox = combineBBoxes(resultBBox,`
1879	`combineBBoxes(asciiBBox(commaAscii()),`	1879	`combineBBoxes(asciiBBox(commaAscii()),`
1880	`asciiBBox(spaceAscii())));`	1880	`asciiBBox(spaceAscii())));`
1881	`}`	1881	`}`
1882	`return combineBBoxes(resultBBox,`	1882	`return combineBBoxes(resultBBox,`
1883	`combineBBoxes(correctionWithinBBox(lastTerm),`	1883	`combineBBoxes(correctionWithinBBox(lastTerm),`
1884	`asciiBBox(groupCloseAscii())));`	1884	`asciiBBox(groupCloseAscii())));`
1885	`}`	1885	`}`
1886		1886
1887	`static void drawExpression(SEXP expr)`	1887	`static void drawExpression(SEXP expr)`
Line 2068...	Line 2068...
2068	`lastArg = CAR(args);`	2068	`lastArg = CAR(args);`
2069	`args = CDR(args);`	2069	`args = CDR(args);`
2070		2070
2071	`for (i=1; i<numArgs; i++) {`	2071	`for (i=1; i<numArgs; i++) {`
2072	`result = combineBBoxes(`	2072	`result = combineBBoxes(`
2073	`result,`	2073	`result,`
2074	`combineBBoxes(correctionBetweenBBox(lastArg, CAR(args)),`	2074	`combineBBoxes(correctionBetweenBBox(lastArg, CAR(args)),`
2075	`elementBBox(CAR(args))));`	2075	`elementBBox(CAR(args))));`
2076	`lastArg = CAR(args);`	2076	`lastArg = CAR(args);`
2077	`args = CDR(args);`	2077	`args = CDR(args);`
2078	`}`	2078	`}`
Line 2207...	Line 2207...
2207	`{`	2207	`{`
2208	`BBOX exprBBox = elementBBox(expr);`	2208	`BBOX exprBBox = elementBBox(expr);`
2209	`double w = exprBBox.width;`	2209	`double w = exprBBox.width;`
2210	`if (units == INCHES)`	2210	`if (units == INCHES)`
2211	`return w;`	2211	`return w;`
2212	`else`	2212	`else`
2213	`return GConvertXUnits(w, INCHES, units, dd);`	2213	`return GConvertXUnits(w, INCHES, units, dd);`
2214	`}`	2214	`}`
2215		2215
2216	`#define ABS(a) ((a)>=0 ? (a) : -(a))`	2216	`#define ABS(a) ((a)>=0 ? (a) : -(a))`
2217		2217
Line 2225...	Line 2225...
2225	`return GConvertYUnits(h, INCHES, units, dd);`	2225	`return GConvertYUnits(h, INCHES, units, dd);`
2226	`}`	2226	`}`
2227		2227
2228	`/* functions forming the API */`	2228	`/* functions forming the API */`
2229		2229
2230	`void GMathText(double x, double y, int coords, SEXP expr,`	2230	`void GMathText(double x, double y, int coords, SEXP expr,`
2231	`double xc, double yc, double rot, DevDesc *dd)`	2231	`double xc, double yc, double rot, DevDesc *dd)`
2232	`{`	2232	`{`
2233	`BBOX expressionBBox;`	2233	`BBOX expressionBBox;`
2234		2234
2235	`mathDevice = dd;`	2235	`mathDevice = dd;`

The R Project SVN R

(root)/trunk/src/main/plotmath.c @ 28362 – Rev 1009 → 1016