static inline bool apply(Ratio const& lhs, Ratio const& rhs) { BOOST_ASSERT(lhs.denominator() != 0); BOOST_ASSERT(rhs.denominator() != 0); return lhs.numerator() * rhs.denominator() < rhs.numerator() * lhs.denominator(); }
static inline bool apply(Ratio const& lhs, Ratio const& rhs) { BOOST_ASSERT(lhs.denominator() != 0); BOOST_ASSERT(rhs.denominator() != 0); return geometry::math::equals ( lhs.numerator() * rhs.denominator(), rhs.numerator() * lhs.denominator() ); }
void FractionBaseWidget::paintRatio(QPainter & paint, Ratio tmp_ratio, int & x_pos, int & y_pos, QFontMetrics & fm, bool show_mixed, bool addMargin, bool show_center) { QPen pen = paint.pen(); // get the pen int fontHeight = fm.lineSpacing(); // get the font height int int_numerator, int_denominator, int_mixed; QString str_numerator, str_denominator; QString str_mixed; int fontWidth; // to store the width of the last thing painted int tmp_int; // check if we have to show the ratio as mixed number // 11 1 // if yes, -- becomes 2 - // 5 5 int_numerator = tmp_ratio.numerator(); int_denominator = tmp_ratio.denominator(); if (show_mixed == true && qAbs(int_numerator) >= qAbs(int_denominator)) { // calculate the mixed number int_mixed = int (int_numerator / int_denominator); // the negative sign is in front of the mixed number int_numerator = qAbs(int_numerator); int_denominator = qAbs(int_denominator); // we have to reduce the numerator by the mixed number * denominator int_numerator = int_numerator % int_denominator; // now we can convert the numbers into strings for painting str_mixed.setNum(int_mixed); str_numerator.setNum(int_numerator); str_denominator.setNum(int_denominator); // paint the front part of the mixed number paintMiddle(paint, str_mixed, x_pos, y_pos, fm, m_colorNumber); } else { // don't show the ratio as mixed number str_numerator.setNum(int_numerator); str_denominator.setNum(int_denominator); } // if (show_mixed == true && qAbs(int_numerator) > qAbs(int_denominator)) // get the text width of the current ratio fontWidth = fm.width(str_numerator); tmp_int = fm.width(str_denominator); if (tmp_int > fontWidth) fontWidth = tmp_int; // show numerator and denominator in m_colorNumber pen.setColor(m_colorNumber); paint.setPen(pen); // make sure we don't display something like: 0 // 7 - // 3 if (!(show_mixed == true && int_numerator == 0)) { if (show_center == true) x_pos = 80 - fontWidth / 2; if (!(int_denominator == 1 && show_mixed == false)) { // paint the numerator paint.drawText(x_pos, y_pos, fontWidth, fontHeight, Qt::AlignCenter, str_numerator); // paint the fraction line between numerator and denominator paint.fillRect(x_pos, y_pos + fontHeight + 4, fontWidth, 2, m_colorLine); // paint the denominator paint.drawText(x_pos, y_pos + fontHeight + 10, fontWidth, fontHeight, Qt::AlignCenter, str_denominator); } else { // paint the numerator and move the y position down to align with the + signal paint.drawText(x_pos, y_pos + fontHeight - fontHeight / 2, fontWidth, fontHeight, Qt::AlignCenter, str_numerator); } // move the x position to the right by adding the width used for painting // the ratio and a margin x_pos += fontWidth; if (addMargin == true) x_pos += _MARGIN_X; } return; }
static inline bool apply(Ratio const& lhs, Ratio const& rhs) { return boost::rational<Type>(lhs.numerator(), lhs.denominator()) == boost::rational<Type>(rhs.numerator(), rhs.denominator()); }