void DoubleSpinBox::onChange() {
if (getExpression()) {
std::unique_ptr<Expression> result(getExpression()->eval());
NumberExpression * value = freecad_dynamic_cast<NumberExpression>(result.get());
if (value) {
setValue(boost::math::round(value->getValue()));
setReadOnly(true);
iconLabel->setPixmap(getIcon(":/icons/bound-expression.svg", QSize(iconHeight, iconHeight)));
QPalette p(lineEdit()->palette());
p.setColor(QPalette::Text, Qt::lightGray);
lineEdit()->setPalette(p);
}
setToolTip(Base::Tools::fromStdString(getExpression()->toString()));
}
else {
setReadOnly(false);
iconLabel->setPixmap(getIcon(":/icons/bound-expression-unset.svg", QSize(iconHeight, iconHeight)));
QPalette p(lineEdit()->palette());
p.setColor(QPalette::Active, QPalette::Text, defaultPalette.color(QPalette::Text));
lineEdit()->setPalette(p);
}
iconLabel->setToolTip(QString());
}
void Gui::QuantitySpinBox::onChange() {
Q_ASSERT(isBound());
if (getExpression()) {
std::unique_ptr<Expression> result(getExpression()->eval());
NumberExpression * value = freecad_dynamic_cast<NumberExpression>(result.get());
if (value) {
std::stringstream s;
s << value->getValue();
lineEdit()->setText(value->getQuantity().getUserString());
setReadOnly(true);
QPixmap pixmap = getIcon(":/icons/bound-expression.svg", QSize(iconHeight, iconHeight));
iconLabel->setPixmap(pixmap);
QPalette p(lineEdit()->palette());
p.setColor(QPalette::Text, Qt::lightGray);
lineEdit()->setPalette(p);
}
iconLabel->setToolTip(QString());
setToolTip(Base::Tools::fromStdString(getExpression()->toString()));
}
else {
setReadOnly(false);
QPixmap pixmap = getIcon(":/icons/bound-expression-unset.svg", QSize(iconHeight, iconHeight));
iconLabel->setPixmap(pixmap);
QPalette p(lineEdit()->palette());
p.setColor(QPalette::Active, QPalette::Text, defaultPalette.color(QPalette::Text));
lineEdit()->setPalette(p);
iconLabel->setToolTip(QString());
}
iconLabel->setToolTip(QString());
}
void Sheet::updateProperty(CellAddress key)
{
const Property * prop;
Cell * cell = getCell(key);
if (cell != 0) {
Expression * output;
const Expression * input = cell->getExpression();
if (input) {
output = input->eval();
}
else {
std::string s;
if (cell->getStringContent(s))
output = new StringExpression(this, s);
else
output = new StringExpression(this, "");
}
/* Eval returns either NumberExpression or StringExpression objects */
if (freecad_dynamic_cast<NumberExpression>(output)) {
NumberExpression * number = static_cast<NumberExpression*>(output);
if (number->getUnit().isEmpty())
prop = setFloatProperty(key, number->getValue());
else
prop = setQuantityProperty(key, number->getValue(), number->getUnit());
}
else
prop = setStringProperty(key, freecad_dynamic_cast<StringExpression>(output)->getText().c_str());
delete output;
}
else
clear(key);
cellUpdated(key);
}
Expression *ConditionalExpression::eval() const
{
std::auto_ptr<Expression> e(condition->eval());
NumberExpression * v = freecad_dynamic_cast<NumberExpression>(e.get());
if (v == 0)
throw ExpressionError("Invalid expression");
if (fabs(v->getValue()) > 0.5)
return trueExpr->eval();
else
return falseExpr->eval();
}
Expression *ConditionalExpression::simplify() const
{
std::auto_ptr<Expression> e(condition->simplify());
NumberExpression * v = freecad_dynamic_cast<NumberExpression>(e.get());
if (v == 0)
return new ConditionalExpression(owner, condition->simplify(), trueExpr->simplify(), falseExpr->simplify());
else {
if (fabs(v->getValue()) > 0.5)
return trueExpr->simplify();
else
return falseExpr->simplify();
}
}