private void switchCurrency() {
int newDecimalPlaces;
BigDecimal newAmount;
if (_enterFiatAmount) {
// We are switching from Fiat to BTC
// Set BTC button
Button btCurrency = (Button) findViewById(R.id.btCurrency);
btCurrency.setText(_mbwManager.getBitcoinDenomination().getUnicodeName());
// Set BTC balance
((TextView) findViewById(R.id.tvMaxAmount)).setText(getBalanceString(_balance));
newDecimalPlaces = _mbwManager.getBitcoinDenomination().getDecimalPlaces();
Long satoshis = getSatoshisToSend();
if (satoshis == null) {
newAmount = null;
} else {
newAmount = BigDecimal.valueOf(satoshis).divide(BigDecimal.TEN.pow(newDecimalPlaces));
}
} else {
// We are switching from BTC to Fiat
// Set Fiat button
Button btCurrency = (Button) findViewById(R.id.btCurrency);
btCurrency.setText(_mbwManager.getFiatCurrency());
// Set Fiat balance
String fiatBalance = Utils.getFiatValueAsString(_balance, _oneBtcInFiat);
String balanceString =
getResources().getString(R.string.max_fiat, fiatBalance, _mbwManager.getFiatCurrency());
((TextView) findViewById(R.id.tvMaxAmount)).setText(balanceString);
newDecimalPlaces = 2;
Long fiatCents = getFiatCentsToSend();
if (fiatCents == null) {
newAmount = null;
} else {
newAmount = BigDecimal.valueOf(fiatCents).divide(BigDecimal.TEN.pow(newDecimalPlaces));
}
}
// Note: Do the boolean switch before updating numberEntry, as there is
// feedback from numberEntry back to ourselves
_enterFiatAmount = !_enterFiatAmount;
_numberEntry.setEntry(newAmount, newDecimalPlaces);
// Check whether we can enable the paste button
findViewById(R.id.btPaste).setEnabled(enablePaste());
}
private RexNode makeCastExactToInterval(RelDataType toType, RexNode exp) {
IntervalSqlType intervalType = (IntervalSqlType) toType;
TimeUnit endUnit = intervalType.getIntervalQualifier().getEndUnit();
if (endUnit == null) {
endUnit = intervalType.getIntervalQualifier().getStartUnit();
}
int scale = 0;
if (endUnit == TimeUnit.SECOND) {
scale =
Math.min(
intervalType
.getIntervalQualifier()
.getFractionalSecondPrecision(typeFactory.getTypeSystem()),
3);
}
BigDecimal multiplier =
BigDecimal.valueOf(endUnit.multiplier).divide(BigDecimal.TEN.pow(scale));
RelDataType decimalType =
getTypeFactory()
.createSqlType(SqlTypeName.DECIMAL, scale + intervalType.getPrecision(), scale);
RexNode value = decodeIntervalOrDecimal(ensureType(decimalType, exp, true));
if (multiplier.longValue() != 1) {
value = makeCall(SqlStdOperatorTable.MULTIPLY, value, makeExactLiteral(multiplier));
}
return encodeIntervalOrDecimal(value, toType, false);
}
public static int getDecimais(final double numero, final int casas) {
final BigDecimal numeroArredondado =
BigDecimal.valueOf(numero).setScale(casas, RoundingMode.HALF_UP);
final BigDecimal decimais =
numeroArredondado.subtract(BigDecimal.valueOf(numeroArredondado.intValue()));
return decimais.multiply(BigDecimal.TEN.pow(casas)).intValue();
}
/**
* Returns the base 10 logarithm of a {@link BigInteger}.
*
* @param theValue
* @return
*/
public static double log10(final BigInteger theValue) {
/*
* log10(x) = (x / (10 ^ len(x))) + len(x)
* http://ubuntuforums.org/showthread.php?t=1461903
*/
final int length = theValue.toString().length();
BigDecimal div = BigDecimal.TEN.pow(length);
BigDecimal res = new BigDecimal(theValue).divide(div);
return java.lang.Math.log10(res.doubleValue()) + length;
}
private void maximizeAmount() {
if (_maxSendable == 0) {
String msg = getResources().getString(R.string.insufficient_funds);
_toast.setText(msg);
_toast.show();
} else {
if (_enterFiatAmount) {
switchCurrency();
}
int newDecimalPlaces = _mbwManager.getBitcoinDenomination().getDecimalPlaces();
BigDecimal newAmount =
BigDecimal.valueOf(_maxSendable).divide(BigDecimal.TEN.pow(newDecimalPlaces));
_numberEntry.setEntry(newAmount, newDecimalPlaces);
}
}
public String format(BigDecimal d) {
if (d == null) d = BigDecimal.ZERO;
if (this.isBlankWhenZero() && d.compareTo(BigDecimal.ZERO) == 0) return blankWhenZero("0");
if (sym != null) {
if (getNumberFormat() != null)
return suppressLeadingZeros(
addSign(
getNumberFormat()
.format(
d.abs()
.setScale(
getNumberFormat().getMaximumFractionDigits(), RoundingMode.DOWN)
.multiply(BigDecimal.TEN.pow(scale))),
(d.signum() < 0)));
else if (sym.type == Constants.STRING) {
return format(d.abs().toPlainString());
}
}
return d.toString();
}
@Override
public Sexp visit(RealExpr e) {
Sexp numerator = Sexp.fromBigInt(e.value.unscaledValue());
Sexp denominator = Sexp.fromBigInt(BigDecimal.TEN.pow(e.value.scale()).toBigInteger());
return new Cons("/", numerator, denominator);
}
/**
* Formats the specified number and returns a string representation.
*
* @param item item
* @param pics pictures
* @param ii input info
* @return picture variables
* @throws QueryException query exception
*/
private byte[] format(final ANum item, final Picture[] pics, final InputInfo ii)
throws QueryException {
// Rule 1: return results for NaN
final double d = item.dbl(ii);
if (Double.isNaN(d)) return nan;
// Rule 2: check if value if negative (smaller than zero or -0)
final boolean neg = d < 0 || d == 0 && Double.doubleToLongBits(d) == Long.MIN_VALUE;
final Picture pic = pics[neg && pics.length == 2 ? 1 : 0];
final IntList res = new IntList(), intgr = new IntList(), fract = new IntList();
int exp = 0;
// Rule 3: percent/permille
ANum num = item;
if (pic.pc) num = (ANum) Calc.MULT.ev(num, Int.get(100), ii);
if (pic.pm) num = (ANum) Calc.MULT.ev(num, Int.get(1000), ii);
if (Double.isInfinite(num.dbl(ii))) {
// Rule 4: infinity
intgr.add(new TokenParser(inf).toArray());
} else {
// Rule 5: exponent
if (pic.minExp != 0 && d != 0) {
BigDecimal dec = num.dec(ii).abs().stripTrailingZeros();
int scl = 0;
if (dec.compareTo(BigDecimal.ONE) >= 0) {
scl = dec.setScale(0, RoundingMode.HALF_DOWN).precision();
} else {
while (dec.compareTo(BigDecimal.ONE) < 0) {
dec = dec.multiply(BigDecimal.TEN);
scl--;
}
scl++;
}
exp = scl - pic.min[0];
if (exp != 0) {
final BigDecimal n = BigDecimal.TEN.pow(Math.abs(exp));
num = (ANum) Calc.MULT.ev(num, Dec.get(exp > 0 ? BigDecimal.ONE.divide(n) : n), ii);
}
}
num = num.round(pic.maxFrac, true).abs();
// convert positive number to string
final String s =
(num instanceof Dbl || num instanceof Flt
? Dec.get(BigDecimal.valueOf(num.dbl(ii)))
: num)
.toString();
// integer/fractional separator
final int sep = s.indexOf('.');
// create integer part
final int sl = s.length();
final int il = sep == -1 ? sl : sep;
for (int i = il; i < pic.min[0]; ++i) intgr.add(zero);
// fractional number: skip leading 0
if (!s.startsWith("0.") || pic.min[0] > 0) {
for (int i = 0; i < il; i++) intgr.add(zero + s.charAt(i) - '0');
}
// squeeze in grouping separators
if (pic.group[0].length == 1 && pic.group[0][0] > 0) {
// regular pattern with repeating separators
for (int p = intgr.size() - (neg ? 2 : 1); p > 0; --p) {
if (p % pic.group[0][0] == 0) intgr.insert(intgr.size() - p, grouping);
}
} else {
// irregular pattern, or no separators at all
final int gl = pic.group[0].length;
for (int g = 0; g < gl; ++g) {
final int pos = intgr.size() - pic.group[0][g];
if (pos > 0) intgr.insert(pos, grouping);
}
}
// create fractional part
final int fl = sep == -1 ? 0 : sl - il - 1;
if (fl != 0) for (int i = sep + 1; i < sl; i++) fract.add(zero + s.charAt(i) - '0');
for (int i = fl; i < pic.min[1]; ++i) fract.add(zero);
// squeeze in grouping separators in a reverse manner
final int ul = fract.size();
for (int p = pic.group[1].length - 1; p >= 0; p--) {
final int pos = pic.group[1][p];
if (pos < ul) fract.insert(pos, grouping);
}
}
// add minus sign
if (neg && pics.length != 2) res.add(minus);
// add prefix and integer part
res.add(pic.prefSuf[0].toArray()).add(intgr.finish());
// add fractional part
if (!fract.isEmpty()) res.add(decimal).add(fract.finish());
// add exponent
if (pic.minExp != 0) {
res.add(exponent);
if (exp < 0) res.add(minus);
final String s = Integer.toString(Math.abs(exp));
final int sl = s.length();
for (int i = sl; i < pic.minExp; i++) res.add(zero);
for (int i = 0; i < sl; i++) res.add(zero + s.charAt(i) - '0');
}
// add suffix
res.add(pic.prefSuf[1].toArray());
return new TokenBuilder(res.finish()).finish();
}