public CalculatorBody()
{
this.sum = new Addition();
this.difference = new Subtraction();
this.product = new Multiplication();
this.quotient = new Division();
this.exponent = new Exponentiation();
this.sqrt = new SquareRoot();
this.input = new UserInputOutput();
}
public static Operation createOperation(string item)
{
Operation temp = null;
switch (item)
{
case "+":
temp = new Addition();
break;
case "-":
temp = new Subtraction();
break;
case "*":
temp = new Multiplication();
break;
case "/":
temp = new Division();
break;
}
return(temp);
}
// Menghitung hasil operasi <operand1> <operator> <operand2>
public double calculate()
{
Expression temp = new TerminalExpression(0);
switch (operatorSign)
{
case "+":
temp = new Addition(operand1, operand2);
break;
case "-":
temp = new Substraction(operand1, operand2);
break;
case "*":
temp = new Multiplication(operand1, operand2);
break;
case "/":
temp = new Division(operand1, operand2);
break;
case "^":
temp = new Power(operand1, operand2);
break;
case "sqrt":
temp = new SquareRoot(operand1);
break;
case "mod":
temp = new Modulus(operand1, operand2);
break;
}
return(temp.solve());
}
// evaluator
private void btnEq_Click(object sender, EventArgs e)
{
Expression expression;
Double sndArgument = new Double();
if (textBoxRes.Text.Equals("x") || textBoxRes.Text.Equals("y") || textBoxRes.Text.Equals("z"))
{
using (var form = new CalculatorValueForVariables())
{
var result = form.ShowDialog();
if (result == DialogResult.OK)
{
sndArgument = form.varValue;
}
}
}
else
{
sndArgument = Double.Parse(textBoxRes.Text);
}
switch (calcOperator)
{
case "sqrt":
if (!(resultValue < 0))
{
expression = new Sqrt(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
}
else
{
textBoxRes.Text = "Can't calculate sqrt of a neg num!";
}
break;
case "neg":
expression = new Opposite(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "cos":
expression = new Cosinus(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "sin":
expression = new Sinus(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "exp":
expression = new Exponentation(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "abs":
expression = new Abs(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "log":
if (resultValue > 0)
{
expression = new Log(resultValue);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
}
else
{
textBoxRes.Text = "Can't calculate log of a neg num!";
}
break;
case "+":
labelCurrentExpr.Text += sndArgument;
expression = new Addition(resultValue, sndArgument);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "-":
labelCurrentExpr.Text += sndArgument;
expression = new Subtraction(resultValue, sndArgument);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "*":
labelCurrentExpr.Text += sndArgument;
expression = new Multiplication(resultValue, sndArgument);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "/":
labelCurrentExpr.Text += sndArgument;
if (!sndArgument.Equals(0))
{
expression = new Division(resultValue, sndArgument);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
}
else
{
textBoxRes.Text = "Can't divide by 0";
}
break;
case "^":
labelCurrentExpr.Text += sndArgument;
expression = new Power(resultValue, sndArgument);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
case "%":
labelCurrentExpr.Text += sndArgument;
expression = new Modulo(resultValue, sndArgument);
finalValue = expression.Evaluate();
textBoxRes.Text = finalValue.ToString();
break;
}
resultValue = 0;
labelCurrentExpr.Text = "";
}
public double Multiply(double a, double b)
{
return(Multiplication.Multi(a, b));
//return result;
}
public void SetUp()
{
multiplication = new Multiplication();
}
