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ISSUE #20: Support for negative decimal numbers

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rjbatista@gmail.com
2012-02-20 22:17:47 +00:00
parent 8b1fda292d
commit f52570e011
4 changed files with 32 additions and 3 deletions
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27
TM1638.cpp
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@@ -44,18 +44,18 @@ void TM1638::setDisplayToHexNumber(unsigned long number, byte dots, boolean lead
}
}
void TM1638::setDisplayToDecNumber(unsigned long number, byte dots, boolean leadingZeros,
void TM1638::setDisplayToDecNumberAt(unsigned long number, byte dots, byte startingPos, boolean leadingZeros,
const byte numberFont[])
{
if (number > 99999999L) {
setDisplayToError();
} else {
for (int i = 0; i < displays; i++) {
for (int i = 0; i < displays - startingPos; i++) {
if (number != 0) {
setDisplayDigit(number % 10, displays - i - 1, (dots & (1 << i)) != 0, numberFont);
number /= 10;
} else {
if (leadingZeros) {
if (leadingZeros) {
setDisplayDigit(0, displays - i - 1, (dots & (1 << i)) != 0, numberFont);
} else {
clearDisplayDigit(displays - i - 1, (dots & (1 << i)) != 0);
@@ -65,6 +65,27 @@ void TM1638::setDisplayToDecNumber(unsigned long number, byte dots, boolean lead
}
}
void TM1638::setDisplayToDecNumber(unsigned long number, byte dots, boolean leadingZeros,
const byte numberFont[])
{
setDisplayToDecNumberAt(number, dots, leadingZeros, 0, numberFont);
}
void TM1638::setDisplayToSignedDecNumber(signed long number, byte dots, boolean leadingZeros,
const byte numberFont[])
{
if (number >= 0) {
setDisplayToDecNumberAt(number, dots, 0, leadingZeros, numberFont);
} else {
if (-number > 9999999L) {
setDisplayToError();
} else {
setDisplayToDecNumberAt(-number, dots, 1, leadingZeros, numberFont);
sendChar(0, MINUS, (dots & (0x80)) != 0);
}
}
}
void TM1638::setDisplayToBinNumber(byte number, byte dots, const byte numberFont[])
{
for (int i = 0; i < displays; i++) {