public void OnGUI()
{
GUI.Begin("Simple Calculator", ref open, (10, 10), (240, 270));
if (Current != ButtonType.Idle)
{
Last = Current;
}
Current = ButtonType.Idle;
const int o = -20;
GUI.Label(new Rect(14, 22 + o, new Size(190, 20)), calc.Expression + "##Expression"); //ExpressionLabel
GUI.Label(new Rect(14, 42 + o, new Size(190, 24)), calc.Result + "##Result"); //ResultLabel
var backspace = GUI.Button(new Rect(14, 68 + o, new Size(34, 27)), "←"); //backspaceButton
if (backspace)
{
Current = ButtonType.Backspace;
}
var clearInput = GUI.Button(new Rect(53, 68 + o, new Size(34, 27)), "CE");//CEButton
if (clearInput)
{
Current = ButtonType.ClearInput;
}
var clear = GUI.Button(new Rect(92, 68 + o, new Size(34, 27)), "C");//CButton
if (clear)
{
Current = ButtonType.Clear;
}
var plusMinus = GUI.Button(new Rect(131, 68 + o, new Size(34, 27)), "±");//SignButton
if (plusMinus)
{
Current = ButtonType.PlusMinus;
}
var sqrt = GUI.Button(new Rect(170, 68 + o, new Size(34, 27)), "√");//SqrtButton
if (sqrt)
{
Current = ButtonType.Sqrt;
}
bool[] number = new bool[10];
number[7] = GUI.Button(new Rect(14, 100 + o, new Size(34, 27)), "7");//_7Button
if (number[7])
{
Current = ButtonType.Number7;
}
number[8] = GUI.Button(new Rect(53, 100 + o, new Size(34, 27)), "8");//_8Button
if (number[8])
{
Current = ButtonType.Number8;
}
number[9] = GUI.Button(new Rect(92, 100 + o, new Size(34, 27)), "9");//_9Button
if (number[9])
{
Current = ButtonType.Number9;
}
var divide = GUI.Button(new Rect(131, 100 + o, new Size(34, 27)), "/");//DivideButton
if (divide)
{
Current = ButtonType.Divide;
}
var percent = GUI.Button(new Rect(170, 100 + o, new Size(34, 27)), "%");//PercentButton
if (percent)
{
Current = ButtonType.Percent;
}
number[4] = GUI.Button(new Rect(14, 132 + o, new Size(34, 27)), "4");//_4Button
if (number[4])
{
Current = ButtonType.Number4;
}
number[5] = GUI.Button(new Rect(53, 132 + o, new Size(34, 27)), "5");//_5Button
if (number[5])
{
Current = ButtonType.Number5;
}
number[6] = GUI.Button(new Rect(92, 132 + o, new Size(34, 27)), "6");//_6Button
if (number[6])
{
Current = ButtonType.Number6;
}
var multiply = GUI.Button(new Rect(131, 132 + o, new Size(34, 27)), "*");//MultiplyButton
if (multiply)
{
Current = ButtonType.Multiply;
}
var inverse = GUI.Button(new Rect(170, 132 + o, new Size(34, 27)), "1/x");//InverseButton
if (inverse)
{
Current = ButtonType.Inverse;
}
number[1] = GUI.Button(new Rect(14, 164 + o, new Size(34, 27)), "1");//_1Button
if (number[1])
{
Current = ButtonType.Number1;
}
number[2] = GUI.Button(new Rect(53, 164 + o, new Size(34, 27)), "2");//_2Button
if (number[2])
{
Current = ButtonType.Number2;
}
number[3] = GUI.Button(new Rect(92, 164 + o, new Size(34, 27)), "3");//_3Button
if (number[3])
{
Current = ButtonType.Number3;
}
var minus = GUI.Button(new Rect(131, 164 + o, new Size(34, 27)), "-");//MinusButton
if (minus)
{
Current = ButtonType.Minus;
}
number[0] = GUI.Button(new Rect(14, 196 + o, new Size(73, 27)), "0");//_0Button
if (number[0])
{
Current = ButtonType.Number0;
}
var dot = GUI.Button(new Rect(92, 196 + o, new Size(34, 27)), ".");//PointButton
if (dot)
{
Current = ButtonType.Dot;
}
var plus = GUI.Button(new Rect(131, 196 + o, new Size(34, 27)), "+");//_plusButton
if (plus)
{
Current = ButtonType.Plus;
}
var equal = GUI.Button(new Rect(170, 164 + o, new Size(34, 59)), "=");//_EqualButton
if (equal)
{
Current = ButtonType.Equal;
}
GUI.End();
if (Current == ButtonType.Idle)
{
return;
}
if (Current == ButtonType.ClearInput)
{
calc.ClearInput();
calc.ShowingResult = false;
return;
}
if (Current == ButtonType.Clear)
{
calc.Clear();
calc.EnteringOperand0 = true;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = false;
return;
}
if (Current == ButtonType.Backspace)
{
calc.Backspace();
return;
}
if (Current.IsNumber())
{
if (calc.ShowingResult)
{
calc.Clear();
}
if (calc.EnteringOperand0)
{
if (calc.Operand0 == "0")
{
calc.Operand0 = ((int)Current).ToString();
}
else
{
calc.Operand0 += (int)Current;
}
}
else if (calc.EnteringOperand1)
{
if (calc.Operand1 == "0")
{
calc.Operand1 = ((int)Current).ToString();
}
else
{
calc.Operand1 += (int)Current;
}
}
calc.ShowingResult = false;
}
if (Last.IsNumber() && Current.IsUnaryOperator())
{
calc.Op = (OpType)Current;
calc.DoCalc();
calc.EnteringOperand0 = true;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = true;
}
if (Last.IsNumber() && Current.IsBinaryOperator())
{
calc.Op = (OpType)Current;
calc.EnteringOperand0 = false;
calc.EnteringOperator = true;
calc.EnteringOperand1 = true;
calc.ShowingResult = false;
}
if (!calc.ShowingResult && Current.IsBinaryOperator())
{
calc.Op = (OpType)Current;
calc.EnteringOperand0 = false;
calc.EnteringOperator = true;
calc.EnteringOperand1 = true;
calc.ShowingResult = false;
}
if (Last.IsBinaryOperator() && Current.IsNumber())
{
calc.EnteringOperand0 = false;
calc.EnteringOperator = false;
calc.EnteringOperand1 = true;
calc.ShowingResult = false;
}
if (calc.EnteringOperand1 && Current == ButtonType.Equal)
{
calc.DoCalc();
calc.EnteringOperand0 = false;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = true;
}
if (Last == ButtonType.Equal && Current.IsNumber())
{
calc.Clear();
calc.EnteringOperand0 = true;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = false;
calc.Operand0 = ((int)Current).ToString();
}
}
protected override void OnGUI()
{
GUILayout.Label("Simple Calculator");//Title
if (Current != ButtonType.Idle)
{
Last = Current;
}
Current = ButtonType.Idle;
GUILayout.Label(calc.Expression); //ExpressionLabel
GUILayout.Label(calc.Result); //ResultLabel
GUILayout.BeginHorizontal("Line0");
{
var backspace = GUILayout.Button("←");//backspaceButton
if (backspace)
{
Current = ButtonType.Backspace;
}
var clearInput = GUILayout.Button("CE");//CEButton
if (clearInput)
{
Current = ButtonType.ClearInput;
}
var clear = GUILayout.Button("C");//CButton
if (clear)
{
Current = ButtonType.Clear;
}
var plusMinus = GUILayout.Button("±");//SignButton
if (plusMinus)
{
Current = ButtonType.PlusMinus;
}
var sqrt = GUILayout.Button("√");//SqrtButton
if (sqrt)
{
Current = ButtonType.Sqrt;
}
}
GUILayout.EndHorizontal();
bool[] number = new bool[10];
GUILayout.BeginHorizontal("Line1");
{
number[7] = GUILayout.Button("7");//_7Button
if (number[7])
{
Current = ButtonType.Number7;
}
number[8] = GUILayout.Button("8");//_8Button
if (number[8])
{
Current = ButtonType.Number8;
}
number[9] = GUILayout.Button("9");//_9Button
if (number[9])
{
Current = ButtonType.Number9;
}
var divide = GUILayout.Button("/");//DivideButton
if (divide)
{
Current = ButtonType.Divide;
}
var percent = GUILayout.Button("%");//PercentButton
if (percent)
{
Current = ButtonType.Percent;
}
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal("Line2");
{
number[4] = GUILayout.Button("4");//_4Button
if (number[4])
{
Current = ButtonType.Number4;
}
number[5] = GUILayout.Button("5");//_5Button
if (number[5])
{
Current = ButtonType.Number5;
}
number[6] = GUILayout.Button("6");//_6Button
if (number[6])
{
Current = ButtonType.Number6;
}
var multiply = GUILayout.Button("*");//MultiplyButton
if (multiply)
{
Current = ButtonType.Multiply;
}
var inverse = GUILayout.Button("1/x");//InverseButton
if (inverse)
{
Current = ButtonType.Inverse;
}
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal("Line3");
{
GUILayout.BeginVertical("VGroup~", GUILayout.StretchWidth(4));
{
GUILayout.BeginHorizontal("HGroup~0");
{
number[1] = GUILayout.Button("1");//_1Button
if (number[1])
{
Current = ButtonType.Number1;
}
number[2] = GUILayout.Button("2");//_2Button
if (number[2])
{
Current = ButtonType.Number2;
}
number[3] = GUILayout.Button("3");//_3Button
if (number[3])
{
Current = ButtonType.Number3;
}
var minus = GUILayout.Button("-");//MinusButton
if (minus)
{
Current = ButtonType.Minus;
}
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal("HGroup~1");
{
number[0] = GUILayout.Button("0", GUILayout.StretchWidth(2));//_0Button
if (number[0])
{
Current = ButtonType.Number0;
}
var dot = GUILayout.Button(".");//PointButton
if (dot)
{
Current = ButtonType.Dot;
}
var plus = GUILayout.Button("+");//_plusButton
if (plus)
{
Current = ButtonType.Plus;
}
}
GUILayout.EndHorizontal();
}
GUILayout.EndVertical();
var equal = GUILayout.Button("=", GUILayout.StretchWidth(1));//_EqualButton
if (equal)
{
Current = ButtonType.Equal;
}
}
GUILayout.EndHorizontal();
if (Current == ButtonType.Idle)
{
return;
}
if (Current == ButtonType.ClearInput)
{
calc.ClearInput();
calc.ShowingResult = false;
return;
}
if (Current == ButtonType.Clear)
{
calc.Clear();
calc.EnteringOperand0 = true;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = false;
return;
}
if (Current == ButtonType.Backspace)
{
calc.Backspace();
return;
}
if (Current.IsNumber())
{
if (calc.ShowingResult)
{
calc.Clear();
}
if (calc.EnteringOperand0)
{
if (calc.Operand0 == "0")
{
calc.Operand0 = ((int)Current).ToString();
}
else
{
calc.Operand0 += (int)Current;
}
}
else if (calc.EnteringOperand1)
{
if (calc.Operand1 == "0")
{
calc.Operand1 = ((int)Current).ToString();
}
else
{
calc.Operand1 += (int)Current;
}
}
calc.ShowingResult = false;
}
if (Last.IsNumber() && Current.IsUnaryOperator())
{
calc.Op = (OpType)Current;
calc.DoCalc();
calc.EnteringOperand0 = true;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = true;
}
if (Last.IsNumber() && Current.IsBinaryOperator())
{
calc.Op = (OpType)Current;
calc.EnteringOperand0 = false;
calc.EnteringOperator = true;
calc.EnteringOperand1 = true;
calc.ShowingResult = false;
}
if (!calc.ShowingResult && Current.IsBinaryOperator())
{
calc.Op = (OpType)Current;
calc.EnteringOperand0 = false;
calc.EnteringOperator = true;
calc.EnteringOperand1 = true;
calc.ShowingResult = false;
}
if (Last.IsBinaryOperator() && Current.IsNumber())
{
calc.EnteringOperand0 = false;
calc.EnteringOperator = false;
calc.EnteringOperand1 = true;
calc.ShowingResult = false;
}
if (calc.EnteringOperand1 && Current == ButtonType.Equal)
{
calc.DoCalc();
calc.EnteringOperand0 = false;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = true;
}
if (Last == ButtonType.Equal && Current.IsNumber())
{
calc.Clear();
calc.EnteringOperand0 = true;
calc.EnteringOperator = false;
calc.EnteringOperand1 = false;
calc.ShowingResult = false;
calc.Operand0 = ((int)Current).ToString();
}
}