double QgsScaleComboBox::toDouble( const QString &scaleString, bool *returnOk )
{
bool ok = false;
QString scaleTxt( scaleString );
double denominator = qgsPermissiveToDouble( scaleTxt, ok );
double scale = !qgsDoubleNear( denominator, 0.0 ) ? 1.0 / denominator : 0.0;
if ( ok )
{
// Create a text version and set that text and rescan
// Idea is to get the same rounding.
scaleTxt = toString( scale );
}
else
{
// It is now either X:Y or not valid
QStringList txtList = scaleTxt.split( ':' );
if ( 2 == txtList.size() )
{
bool okX = false;
bool okY = false;
int x = qgsPermissiveToInt( txtList[ 0 ], okX );
int y = qgsPermissiveToInt( txtList[ 1 ], okY );
if ( okX && okY && x != 0 )
{
// Scale is fraction of x and y
scale = static_cast< double >( y ) / static_cast< double >( x );
ok = true;
}
}
}
// Set up optional return flag
if ( returnOk )
{
*returnOk = ok;
}
return scale;
}
double QgsScaleComboBox::toDouble( const QString& scaleString, bool * returnOk )
{
bool ok = false;
QString scaleTxt( scaleString );
double scale = QGis::permissiveToDouble( scaleTxt, ok );
if ( ok )
{
// Create a text version and set that text and rescan
// Idea is to get the same rounding.
scaleTxt = toString( scale );
}
else
{
// It is now either X:Y or not valid
QStringList txtList = scaleTxt.split( ':' );
if ( 2 == txtList.size() )
{
bool okX = false;
bool okY = false;
int x = QGis::permissiveToInt( txtList[ 0 ], okX );
int y = QGis::permissiveToInt( txtList[ 1 ], okY );
if ( okX && okY )
{
// Scale is fraction of x and y
scale = ( double )x / ( double )y;
ok = true;
}
}
}
// Set up optional return flag
if ( returnOk )
{
*returnOk = ok;
}
return scale;
}
