public int pik_doCalculate()
{
try
{
double fn, sn, rn;
int error = 0;
fn = 0;
sn = 0;
rn = 0;
if (firstNumber.OToString() == "END" && secondNumber.OToString() == "END")
{
if (mycalcOperator == MyInternalKey.IK_CANCEL_START)
{
this.initGlobal();
}
firstNumber.setText(resultNumber.getText());
secondNumber.setText(lastSecond.getText());
fn = firstNumber.getNumber();
sn = secondNumber.getNumber();
mycalcOperator = lastOperator;
switch (mycalcOperator)
{
case MyInternalKey.IK_OPERATOR_SIGN:
rn = 0 - fn;
break;
case MyInternalKey.IK_OPERATOR_PLUS:
rn = fn + sn;
break;
case MyInternalKey.IK_OPERATOR_SUB:
rn = fn - sn;
break;
case MyInternalKey.IK_OPERATOR_MUL:
rn = fn * sn;
break;
case MyInternalKey.IK_OPERATOR_DIV:
if (sn != 0)
{
rn = fn / sn;
}
else
{
error = 1;
}
break;
case MyInternalKey.IK_OPERATOR_RESULT:
break;
default:
break;
}
lastFirst.setText(firstNumber.getText());
lastSecond.setText(secondNumber.getText());
lastOperator = mycalcOperator;
firstNumber.setText("END");
secondNumber.setText("END");
resultNumber.setNumber(rn);
ikm_textRefreshed(resultNumber.toString());
if (error == 1)
{
ikm_textRefreshed("Error : Divide By Zero !");
}
}
else
{
if (firstNumber.OToString() != "END" && secondNumber.OToString() == "END")
{
fn = firstNumber.getNumber();
sn = firstNumber.getNumber();
}
if (firstNumber.OToString() != "END" && secondNumber.OToString() != "END" /*&& firstNumber.OToString() != resultNumber.OToString()*/)
{
fn = firstNumber.getNumber();
sn = secondNumber.getNumber();
}
rn = 0.0;
switch (mycalcOperator)
{
case MyInternalKey.IK_OPERATOR_SIGN:
rn = 0 - fn;
break;
case MyInternalKey.IK_OPERATOR_PLUS:
rn = fn + sn;
break;
case MyInternalKey.IK_OPERATOR_SUB:
rn = fn - sn;
break;
case MyInternalKey.IK_OPERATOR_MUL:
rn = fn * sn;
break;
case MyInternalKey.IK_OPERATOR_DIV:
if (sn != 0)
{
rn = fn / sn;
}
else
{
error = 1;
}
break;
case MyInternalKey.IK_OPERATOR_RESULT:
break;
default:
break;
}
lastFirst.setText(firstNumber.getText());
lastSecond.setText(secondNumber.getText());
lastOperator = mycalcOperator;
firstNumber.setText("END");
secondNumber.setText("END");
resultNumber.setNumber(rn);
ikm_textRefreshed(resultNumber.toString());
if (error == 1)
{
ikm_textRefreshed("Error : Divide By Zero !");
}
}
}
catch
{
this.initGlobal();
}
return(0);
}
public int pik_processOperator(MyInternalKey ik)
{
//double fn, sn, rn;
if (g_getInternalKeyType(ik) != MyCalcInternalKeyType.IKT_OPERATOR)
{
return(1);
}
if (ik == MyInternalKey.IK_OPERATOR_SIGN)
{
if (mycalcState == MyCalcState.CS_STATE_FIRSTOPERAND)
{
firstNumber.setNumber(0 - firstNumber.getNumber());
ikm_textRefreshed(firstNumber.toString());
}
if (mycalcState == MyCalcState.CS_STATE_SECONDOPERAND)
{
secondNumber.setNumber(0 - secondNumber.getNumber());
ikm_textRefreshed(secondNumber.toString());
}
if (mycalcState == MyCalcState.CS_STATE_OPERATOR)
{
secondNumber.setNumber(0 - secondNumber.getNumber());
ikm_textRefreshed(secondNumber.toString());
}
if (mycalcState == MyCalcState.CS_STATE_READY)
{
resultNumber.setNumber(0 - resultNumber.getNumber());
ikm_textRefreshed(resultNumber.toString());
}
}
else
{
if (ik == MyInternalKey.IK_OPERATOR_RESULT)
{
mycalcState = MyCalcState.CS_STATE_SECONDOPERAND;
}
switch (mycalcState)
{
case MyCalcState.CS_STATE_READY:
if (firstNumber.getText() == "END" && secondNumber.getText() == "END")
{
firstNumber.setText(resultNumber.getText());
mycalcOperator = ik;
mycalcState = MyCalcState.CS_STATE_OPERATOR;
}
break;
case MyCalcState.CS_STATE_FIRSTOPERAND:
mycalcOperator = ik;
mycalcState = MyCalcState.CS_STATE_OPERATOR;
break;
case MyCalcState.CS_STATE_OPERATOR:
{
if (ik == MyInternalKey.IK_OPERATOR_RESULT && firstNumber.getText() == resultNumber.getText() && secondNumber.getText() == "END")
{
secondNumber.setNumber(firstNumber.getNumber());
pik_doCalculate();
mycalcState = MyCalcState.CS_STATE_READY;
}
else
{
mycalcOperator = ik;
}
}
break;
case MyCalcState.CS_STATE_SECONDOPERAND:
pik_doCalculate();
mycalcState = MyCalcState.CS_STATE_READY;
if (ik != MyInternalKey.IK_OPERATOR_RESULT)
{
firstNumber.setText(resultNumber.getText());
mycalcOperator = ik;
mycalcState = MyCalcState.CS_STATE_OPERATOR;
}
break;
}
}
return(0);
}