// Operator toevoegen aan rekensom
private void OperatorBtn_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
// Checken of er al een eerder som heeft plaats gevonden. Bij true: uitkomst als eerste input getal gebruiken, daarna invoeren orperator
if (value != 0)
{
if (operatorUsed == false)
{
// Onmogelijk maken twee keer klikken op operator toets
EqualBtn.PerformClick();
operatorUsed = true;
}
input = btn.Text;
equalBtnUsed = false;
deciCount = 0;
}
// invoeren operator
else
{
input = btn.Text;
value = Double.Parse(result.Text);
operatorUsed = true;
deciCount = 0;
}
}
private void OperationClick(object sender, EventArgs e)
{
Button button = (Button)sender;
ResultBox.Text = ResultBox.Text.Trim();
if (ResultBox.Text != "0" && ResultBox.Text != null)
{
EqualBtn.PerformClick();
Text = button.Text;
Value = Double.Parse(ResultBox.Text);
OperPress = true;
}
else
{
Text = button.Text;
Value = Double.Parse(ResultBox.Text);
OperPress = true;
}
}
private void Operator_click(object sender, EventArgs e)
{
Button b = (Button)sender;
if (value != 0)
{
// fire the equals_Click method
EqualBtn.PerformClick();
operation_pressed = true;
operation = b.Text;
equation.Text = value + " " + operation;
}
else
{
operation = b.Text;
// since value is a double
value = Double.Parse(result.Text);
operation_pressed = true;
equation.Text = value + " " + operation;
}
GrabFocus.Focus(); // switches focus to a hidden label. required for \r to keypress equals
}
private void Calculate_KeyPress(object sender, KeyPressEventArgs e)
{
switch (e.KeyChar.ToString())
{
case "1":
button1.PerformClick();
break;
case "2":
button2.PerformClick();
break;
case "3":
button3.PerformClick();
break;
case "4":
button4.PerformClick();
break;
case "5":
button5.PerformClick();
break;
case "6":
button6.PerformClick();
break;
case "7":
button7.PerformClick();
break;
case "8":
button8.PerformClick();
break;
case "9":
button9.PerformClick();
break;
case "0":
button0.PerformClick();
break;
case "+":
PlusBtn.PerformClick();
break;
case "-":
SubtractBtn.PerformClick();
break;
case "*":
MultipleBtn.PerformClick();
break;
case "/":
DevideBtn.PerformClick();
break;
case "=":
EqualBtn.PerformClick();
break;
case "\r":
EqualBtn.PerformClick();
break;
case " ":
EqualBtn.PerformClick();
break;
case "(":
LeftBracketBtn.PerformClick();
break;
case ")":
RightBracketBtn.PerformClick();
break;
case ".":
PointBtn.PerformClick();
break;
case "%":
Percent.PerformClick();
break;
case "\b":
CEBtn.PerformClick();
break;
default: break;
}
}
// Zorgen dat het toetsenbord gebruikt kan worden
private void NumPadInput(object sender, KeyPressEventArgs e)
{
switch (e.KeyChar.ToString())
{
case "0":
ZeroBtn.PerformClick();
break;
case "1":
OneBtn.PerformClick();
break;
case "2":
TwoBtn.PerformClick();
break;
case "3":
ThreeBtn.PerformClick();
break;
case "4":
FourBtn.PerformClick();
break;
case "5":
FiveBtn.PerformClick();
break;
case "6":
SixBtn.PerformClick();
break;
case "7":
SevenBtn.PerformClick();
break;
case "8":
EightBtn.PerformClick();
break;
case "9":
NineBtn.PerformClick();
break;
case "*":
TimesBtn.PerformClick();
break;
case "/":
DivideBtn.PerformClick();
break;
case "-":
SubtractBtn.PerformClick();
break;
case "+":
Addbtn.PerformClick();
break;
case ",":
DecimalBtn.PerformClick();
break;
case ".":
DecimalBtn.PerformClick();
break;
case "c":
ClearBtn.PerformClick();
break;
// Twee keer op de "c" toets op het toetsenbord klikken voor een All Clear
case "c" + "c":
AllClearBtn.PerformClick();
break;
default:
break;
}
// De "Enter" toets op het toetsenbord de functie van de "=" toets toewijzen
if (e.KeyChar == (char)Keys.Enter)
{
EqualBtn.PerformClick();
}
}
private void Equals_Click(object sender, EventArgs e)
{
equation.Text = "";
switch (operation)
{
case " ":
EqualBtn.PerformClick();
break;
case "\r":
EqualBtn.PerformClick();
break;
case "=":
EqualBtn.PerformClick();
break;
case "+":
result.Text = Operators.Add(value, Double.Parse(result.Text)).ToString();
break;
case "-":
result.Text = Operators.Sub(value, Double.Parse(result.Text)).ToString();
break;
case "*":
result.Text = Operators.Mult(value, Double.Parse(result.Text)).ToString();
break;
case "/":
if (result.Text == "0")
{
result.Text = "Cannot Divide by Zero";
}
else
{
result.Text = Operators.Div(value, Double.Parse(result.Text)).ToString();
}
break;
case "x^n":
result.Text = Operators.XtoN(value, Double.Parse(result.Text)).ToString();
break;
case "Sq":
result.Text = Operators.Sq(value).ToString();
break;
case "sqrt":
result.Text = Operators.Sqrt(value).ToString();
break;
case "nrt":
result.Text = Operators.NthRT(value, Double.Parse(result.Text)).ToString();
break;
default:
break;
}//end switch
equals_pressed = true;
if (result.Text == ".")
{
value = Double.Parse("0.0"); // does not print but this does avoid an exception
}
else
{
value = Double.Parse(result.Text);
}
operation = "";
GrabFocus.Focus(); // switches focus to a hidden label. required for \r to keypress equals
}