void
SVGPathParser::parseSVG( const DeprecatedString &s, bool process )
{
if(!s.isEmpty())
{
DeprecatedString d = s;
d = d.replace(',', ' ');
d = d.simplifyWhiteSpace();
const char *ptr = d.latin1();
const char *end = d.latin1() + d.length() + 1;
double contrlx, contrly, curx, cury, subpathx, subpathy, tox, toy, x1, y1, x2, y2, xc, yc;
double px1, py1, px2, py2, px3, py3;
bool relative, closed = true;
char command = *(ptr++), lastCommand = ' ';
subpathx = subpathy = curx = cury = contrlx = contrly = 0.0;
while( ptr < end )
{
if( *ptr == ' ' )
ptr++;
relative = false;
//std::cout << "Command : " << command << std::endl;
switch( command )
{
case 'm':
relative = true;
case 'M':
{
ptr = parseCoord( ptr, tox );
ptr = parseCoord( ptr, toy );
if( process )
{
subpathx = curx = relative ? curx + tox : tox;
subpathy = cury = relative ? cury + toy : toy;
svgMoveTo( curx, cury, closed );
}
else
svgMoveTo( tox, toy, closed, !relative );
closed = false;
break;
}
case 'l':
relative = true;
case 'L':
{
ptr = parseCoord( ptr, tox );
ptr = parseCoord( ptr, toy );
if( process )
{
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
svgLineTo( curx, cury );
}
else
svgLineTo( tox, toy, !relative );
break;
}
case 'h':
{
ptr = parseCoord( ptr, tox );
if( process )
{
curx = curx + tox;
svgLineTo( curx, cury );
}
else
svgLineToHorizontal( tox, false );
break;
}
case 'H':
{
ptr = parseCoord( ptr, tox );
if( process )
{
curx = tox;
svgLineTo( curx, cury );
}
else
svgLineToHorizontal( tox );
break;
}
case 'v':
{
ptr = parseCoord( ptr, toy );
if( process )
{
cury = cury + toy;
svgLineTo( curx, cury );
}
else
svgLineToVertical( toy, false );
break;
}
case 'V':
{
ptr = parseCoord( ptr, toy );
if( process )
{
cury = toy;
svgLineTo( curx, cury );
}
else
svgLineToVertical( toy );
break;
}
case 'z':
case 'Z':
{
// reset curx, cury for next path
if( process )
{
curx = subpathx;
cury = subpathy;
}
closed = true;
svgClosePath();
break;
}
case 'c':
relative = true;
case 'C':
{
ptr = parseCoord( ptr, x1 );
ptr = parseCoord( ptr, y1 );
ptr = parseCoord( ptr, x2 );
ptr = parseCoord( ptr, y2 );
ptr = parseCoord( ptr, tox );
ptr = parseCoord( ptr, toy );
if( process )
{
px1 = relative ? curx + x1 : x1;
py1 = relative ? cury + y1 : y1;
px2 = relative ? curx + x2 : x2;
py2 = relative ? cury + y2 : y2;
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic( px1, py1, px2, py2, px3, py3 );
contrlx = relative ? curx + x2 : x2;
contrly = relative ? cury + y2 : y2;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
}
else
svgCurveToCubic( x1, y1, x2, y2, tox, toy, !relative );
break;
}
case 's':
relative = true;
case 'S':
{
ptr = parseCoord( ptr, x2 );
ptr = parseCoord( ptr, y2 );
ptr = parseCoord( ptr, tox );
ptr = parseCoord( ptr, toy );
if(!(lastCommand == 'c' || lastCommand == 'C' ||
lastCommand == 's' || lastCommand == 'S')) {
contrlx = curx;
contrly = cury;
}
if( process )
{
px1 = 2 * curx - contrlx;
py1 = 2 * cury - contrly;
px2 = relative ? curx + x2 : x2;
py2 = relative ? cury + y2 : y2;
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic( px1, py1, px2, py2, px3, py3 );
contrlx = relative ? curx + x2 : x2;
contrly = relative ? cury + y2 : y2;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
}
else
svgCurveToCubicSmooth( x2, y2, tox, toy, !relative );
break;
}
case 'q':
relative = true;
case 'Q':
{
ptr = parseCoord( ptr, x1 );
ptr = parseCoord( ptr, y1 );
ptr = parseCoord( ptr, tox );
ptr = parseCoord( ptr, toy );
if( process )
{
px1 = relative ? (curx + 2 * (x1 + curx)) * (1.0 / 3.0) : (curx + 2 * x1) * (1.0 / 3.0);
py1 = relative ? (cury + 2 * (y1 + cury)) * (1.0 / 3.0) : (cury + 2 * y1) * (1.0 / 3.0);
px2 = relative ? ((curx + tox) + 2 * (x1 + curx)) * (1.0 / 3.0) : (tox + 2 * x1) * (1.0 / 3.0);
py2 = relative ? ((cury + toy) + 2 * (y1 + cury)) * (1.0 / 3.0) : (toy + 2 * y1) * (1.0 / 3.0);
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic( px1, py1, px2, py2, px3, py3 );
contrlx = relative ? curx + x1 : x1;
contrly = relative ? cury + y1 : y1;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
}
else
svgCurveToQuadratic( x1, y1, tox, toy, !relative );
break;
}
case 't':
relative = true;
case 'T':
{
ptr = parseCoord(ptr, tox);
ptr = parseCoord(ptr, toy);
if(!(lastCommand == 'q' || lastCommand == 'Q' ||
lastCommand == 't' || lastCommand == 'T')) {
contrlx = curx;
contrly = cury;
}
if( process )
{
xc = 2 * curx - contrlx;
yc = 2 * cury - contrly;
px1 = relative ? (curx + 2 * xc) * (1.0 / 3.0) : (curx + 2 * xc) * (1.0 / 3.0);
py1 = relative ? (cury + 2 * yc) * (1.0 / 3.0) : (cury + 2 * yc) * (1.0 / 3.0);
px2 = relative ? ((curx + tox) + 2 * xc) * (1.0 / 3.0) : (tox + 2 * xc) * (1.0 / 3.0);
py2 = relative ? ((cury + toy) + 2 * yc) * (1.0 / 3.0) : (toy + 2 * yc) * (1.0 / 3.0);
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic( px1, py1, px2, py2, px3, py3 );
contrlx = xc;
contrly = yc;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
}
else
svgCurveToQuadraticSmooth( tox, toy, !relative );
break;
}
case 'a':
relative = true;
case 'A':
{
bool largeArc, sweep;
double angle, rx, ry;
ptr = parseCoord( ptr, rx );
ptr = parseCoord( ptr, ry );
ptr = parseCoord( ptr, angle );
ptr = parseCoord( ptr, tox );
largeArc = tox == 1;
ptr = parseCoord( ptr, tox );
sweep = tox == 1;
ptr = parseCoord( ptr, tox );
ptr = parseCoord( ptr, toy );
// Spec: radii are nonnegative numbers
rx = fabs(rx);
ry = fabs(ry);
if( process )
calculateArc( relative, curx, cury, angle, tox, toy, rx, ry, largeArc, sweep );
else
svgArcTo( tox, toy, rx, ry, angle, largeArc, sweep, !relative );
break;
}
default:
// FIXME: An error should go to the JavaScript console, or the like.
return;
}
lastCommand = command;
if(*ptr == '+' || *ptr == '-' || (*ptr >= '0' && *ptr <= '9'))
{
// there are still coords in this command
if(command == 'M')
command = 'L';
else if(command == 'm')
command = 'l';
}
else
command = *(ptr++);
if( lastCommand != 'C' && lastCommand != 'c' &&
lastCommand != 'S' && lastCommand != 's' &&
lastCommand != 'Q' && lastCommand != 'q' &&
lastCommand != 'T' && lastCommand != 't' )
{
contrlx = curx;
contrly = cury;
}
}
}
}
void KoPathShapeLoaderPrivate::parseSvg(const QString &s, bool process)
{
if (!s.isEmpty()) {
QString d = s;
d = d.replace(',', ' ');
d = d.simplified();
const QByteArray buffer = d.toLatin1();
const char *ptr = buffer.constData();
const char *end = buffer.constData() + buffer.length() + 1;
qreal curx = 0.0;
qreal cury = 0.0;
qreal contrlx, contrly, subpathx, subpathy, tox, toy, x1, y1, x2, y2, xc, yc;
qreal px1, py1, px2, py2, px3, py3;
bool relative;
char command = *(ptr++), lastCommand = ' ';
subpathx = subpathy = curx = cury = contrlx = contrly = 0.0;
while (ptr < end) {
if (*ptr == ' ')
++ptr;
relative = false;
switch (command) {
case 'm':
relative = true;
case 'M': {
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
if (process) {
subpathx = curx = relative ? curx + tox : tox;
subpathy = cury = relative ? cury + toy : toy;
svgMoveTo(curx, cury);
} else
svgMoveTo(tox, toy, !relative);
break;
}
case 'l':
relative = true;
case 'L': {
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
if (process) {
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
svgLineTo(curx, cury);
} else
svgLineTo(tox, toy, !relative);
break;
}
case 'h': {
ptr = getCoord(ptr, tox);
if (process) {
curx = curx + tox;
svgLineTo(curx, cury);
} else
svgLineToHorizontal(tox, false);
break;
}
case 'H': {
ptr = getCoord(ptr, tox);
if (process) {
curx = tox;
svgLineTo(curx, cury);
} else
svgLineToHorizontal(tox);
break;
}
case 'v': {
ptr = getCoord(ptr, toy);
if (process) {
cury = cury + toy;
svgLineTo(curx, cury);
} else
svgLineToVertical(toy, false);
break;
}
case 'V': {
ptr = getCoord(ptr, toy);
if (process) {
cury = toy;
svgLineTo(curx, cury);
} else
svgLineToVertical(toy);
break;
}
case 'z':
case 'Z': {
// reset curx, cury for next path
if (process) {
// The "closepath" (Z or z) ends the current subpath and causes an automatic
// straight line to be drawn from the current point to the initial point of the
// current subpath. If a "closepath" is followed immediately by a "moveto", then
// the "moveto" identifies the start point of the next subpath. If a "closepath"
// is followed immediately by any other command, then the next subpath starts at
// the same initial point as the current subpath.
if (*ptr != 'm' && *ptr != 'M') {
curx = subpathx;
cury = subpathy;
}
}
svgClosePath();
break;
}
case 'c':
relative = true;
case 'C': {
ptr = getCoord(ptr, x1);
ptr = getCoord(ptr, y1);
ptr = getCoord(ptr, x2);
ptr = getCoord(ptr, y2);
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
if (process) {
px1 = relative ? curx + x1 : x1;
py1 = relative ? cury + y1 : y1;
px2 = relative ? curx + x2 : x2;
py2 = relative ? cury + y2 : y2;
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic(px1, py1, px2, py2, px3, py3);
contrlx = relative ? curx + x2 : x2;
contrly = relative ? cury + y2 : y2;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
} else
svgCurveToCubic(x1, y1, x2, y2, tox, toy, !relative);
break;
}
case 's':
relative = true;
case 'S': {
ptr = getCoord(ptr, x2);
ptr = getCoord(ptr, y2);
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
if (!(lastCommand == 'c' || lastCommand == 'C' ||
lastCommand == 's' || lastCommand == 'S')) {
contrlx = curx;
contrly = cury;
}
if (process) {
px1 = 2 * curx - contrlx;
py1 = 2 * cury - contrly;
px2 = relative ? curx + x2 : x2;
py2 = relative ? cury + y2 : y2;
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic(px1, py1, px2, py2, px3, py3);
contrlx = relative ? curx + x2 : x2;
contrly = relative ? cury + y2 : y2;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
} else
svgCurveToCubicSmooth(x2, y2, tox, toy, !relative);
break;
}
case 'q':
relative = true;
case 'Q': {
ptr = getCoord(ptr, x1);
ptr = getCoord(ptr, y1);
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
if (process) {
px1 = relative ? (curx + 2 * (x1 + curx)) * (1.0 / 3.0) : (curx + 2 * x1) * (1.0 / 3.0);
py1 = relative ? (cury + 2 * (y1 + cury)) * (1.0 / 3.0) : (cury + 2 * y1) * (1.0 / 3.0);
px2 = relative ? ((curx + tox) + 2 * (x1 + curx)) * (1.0 / 3.0) : (tox + 2 * x1) * (1.0 / 3.0);
py2 = relative ? ((cury + toy) + 2 * (y1 + cury)) * (1.0 / 3.0) : (toy + 2 * y1) * (1.0 / 3.0);
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic(px1, py1, px2, py2, px3, py3);
contrlx = relative ? curx + x1 : x1;
contrly = relative ? cury + y1 : y1;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
} else
svgCurveToQuadratic(x1, y1, tox, toy, !relative);
break;
}
case 't':
relative = true;
case 'T': {
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
if (!(lastCommand == 'q' || lastCommand == 'Q' ||
lastCommand == 't' || lastCommand == 'T')) {
contrlx = curx;
contrly = cury;
}
if (process) {
xc = 2 * curx - contrlx;
yc = 2 * cury - contrly;
px1 = (curx + 2 * xc) * (1.0 / 3.0);
py1 = (cury + 2 * yc) * (1.0 / 3.0);
px2 = relative ? ((curx + tox) + 2 * xc) * (1.0 / 3.0) : (tox + 2 * xc) * (1.0 / 3.0);
py2 = relative ? ((cury + toy) + 2 * yc) * (1.0 / 3.0) : (toy + 2 * yc) * (1.0 / 3.0);
px3 = relative ? curx + tox : tox;
py3 = relative ? cury + toy : toy;
svgCurveToCubic(px1, py1, px2, py2, px3, py3);
contrlx = xc;
contrly = yc;
curx = relative ? curx + tox : tox;
cury = relative ? cury + toy : toy;
} else
svgCurveToQuadraticSmooth(tox, toy, !relative);
break;
}
case 'a':
relative = true;
case 'A': {
bool largeArc, sweep;
qreal angle, rx, ry;
ptr = getCoord(ptr, rx);
ptr = getCoord(ptr, ry);
ptr = getCoord(ptr, angle);
ptr = getCoord(ptr, tox);
largeArc = tox == 1;
ptr = getCoord(ptr, tox);
sweep = tox == 1;
ptr = getCoord(ptr, tox);
ptr = getCoord(ptr, toy);
// Spec: radii are nonnegative numbers
rx = fabs(rx);
ry = fabs(ry);
if (process)
calculateArc(relative, curx, cury, angle, tox, toy, rx, ry, largeArc, sweep);
else
svgArcTo(tox, toy, rx, ry, angle, largeArc, sweep, !relative);
break;
}
default: {
// when svg parser is used for a parsing an odf path an unknown command
// can be encountered, so we stop parsing here
kDebug(30006) << "KoSvgPathParser::parseSVG(): unknown command \"" << command << "\"";
return;
}
}
lastCommand = command;
if (*ptr == '+' || *ptr == '-' || (*ptr >= '0' && *ptr <= '9')) {
// there are still coords in this command
if (command == 'M')
command = 'L';
else if (command == 'm')
command = 'l';
} else
command = *(ptr++);
if (lastCommand != 'C' && lastCommand != 'c' &&
lastCommand != 'S' && lastCommand != 's' &&
lastCommand != 'Q' && lastCommand != 'q' &&
lastCommand != 'T' && lastCommand != 't') {
contrlx = curx;
contrly = cury;
}
}
}
}
