void parseInput(char s[])
{
// parse first character
switch (s[0])
{
case 's':
if( (s[1] == 'i') && (s[2] == 'n')&& (s[3] == 'e'))
startSine();
else if( (s[1] == 'q') && (s[2] == 'u')&& (s[3] == 'a')&& (s[4] == 'r')&& (s[5] == 'e'))
startSquare();
else if( (s[1] == 'a') && (s[2] == 'w')&& (s[3] == 't')&& (s[4] == 'o')&& (s[5] == 'o')&& (s[6] == 't')&& (s[7] == 'h'))
startSawtooth();
break;
case 't':
if( (s[1] == 'r') && (s[2] == 'i')&& (s[3] == 'a')&& (s[4] == 'n')&& (s[5] == 'g')&& (s[6] == 'l')&& (s[7] == 'e'))
startTriangle();
break;
case 'c':
if( (s[1] == 't') && (s[2] == 'c'))
parse_ctc(s);
break;
case 'd':
if( (s[1] == 'e') && (s[2] == 'm') && (s[3] == 'o') && (s[4] == '?') )
sendFString(TALKING_TO);
sendFString(WHO_DEMO);
break;
default:
sendFString(BAD_COMMAND1);
sendChar(s[0]);
sendFString(BAD_COMMAND2);
break;
}
s[0] = '\0';
}
QPolygonF UBGeometryUtils::arcToPolygon(const QLineF& startRadius, qreal spanAngleInDegrees, qreal width)
{
qreal startAngleInDegrees = - startRadius.angle();
if (startAngleInDegrees > 180)
startAngleInDegrees -= 360;
else if (startAngleInDegrees < -180)
startAngleInDegrees += 360;
qreal radiusLength = startRadius.length();
qreal angle = 2 * asin(width / (2 * radiusLength)) * 180 / PI;
bool overlap = abs(spanAngleInDegrees) > 360 - angle;
if (overlap)
spanAngleInDegrees = spanAngleInDegrees < 0 ? -360 : 360;
qreal endAngleInDegrees = startAngleInDegrees + spanAngleInDegrees;
qreal innerRadius = radiusLength - width / 2;
QRectF innerSquare(
startRadius.p1().x() - innerRadius,
startRadius.p1().y() - innerRadius,
2 * innerRadius,
2 * innerRadius);
qreal outerRadius = radiusLength + width / 2;
QRectF outerSquare(
startRadius.p1().x() - outerRadius,
startRadius.p1().y() - outerRadius,
2 * outerRadius,
2 * outerRadius);
QRectF startSquare(
startRadius.p2().x() - width / 2,
startRadius.p2().y() - width / 2,
width,
width);
QRectF endSquare(
startRadius.p1().x() + radiusLength * cos(endAngleInDegrees * PI / 180.0) - width / 2,
startRadius.p1().y() + radiusLength * sin(endAngleInDegrees * PI / 180.0) - width / 2,
width,
width);
QPainterPath painterPath(
QPointF(
startRadius.p1().x() + innerRadius * cos(startAngleInDegrees * PI / 180.0),
startRadius.p1().y() + innerRadius * sin(startAngleInDegrees * PI / 180.0)));
startAngleInDegrees = - startAngleInDegrees;
endAngleInDegrees = - endAngleInDegrees;
spanAngleInDegrees = - spanAngleInDegrees;
if (overlap)
{
painterPath.addEllipse(outerSquare);
QPainterPath innerPainterPath;
innerPainterPath.addEllipse(innerSquare);
painterPath = painterPath.subtracted(innerPainterPath);
}
else
{
painterPath.arcTo(innerSquare, startAngleInDegrees, spanAngleInDegrees);
painterPath.arcTo(endSquare, 180.0 + endAngleInDegrees, spanAngleInDegrees > 0 ? -180.0 : 180.0);
painterPath.arcTo(outerSquare, endAngleInDegrees, - spanAngleInDegrees);
painterPath.arcTo(startSquare, startAngleInDegrees, spanAngleInDegrees > 0 ? -180.0 : 180.0);
painterPath.closeSubpath();
}
return painterPath.toFillPolygon();
}
