// Click event handler for the change sign button
private void change_sign_btn_Click(object sender, EventArgs e)
{
// Checks to prevent user error
if (lastInput == inputTypes.Number || lastInput == inputTypes.RightParen || currentDisplayedInput != "" && currentDisplayedInput[currentDisplayedInput.Length - 1] == '.')
{
return;
}
currentDisplayedInput = currentDisplayedInput + "-";
update_calc_output_label();
lastInput = inputTypes.Operator;
}
// Click event handler for the power button
private void power_bt_Click(object sender, EventArgs e)
{
// Checks to prevent user error
if (lastInput == inputTypes.Operator || lastInput == inputTypes.LeftParen || lastInput == inputTypes.empty)
{
return;
}
currentDisplayedInput = currentDisplayedInput + "^";
update_calc_output_label();
lastInput = inputTypes.Operator;
}
// Click event handler for the right parenthesis button
private void right_paren_Click(object sender, EventArgs e)
{
// Dont allow right parens without any left parens
if (LeftParenCount <= 0 || lastInput == inputTypes.LeftParen || lastInput == inputTypes.Operator)
{
return;
}
currentDisplayedInput = currentDisplayedInput + ")";
update_calc_output_label();
lastInput = inputTypes.RightParen;
// Decrease paren count
LeftParenCount--;
}
// Click event handler for the left parenthesis button
private void left_paren_Click(object sender, EventArgs e)
{
// Dont allow left parens
if (lastInput == inputTypes.Number || lastInput == inputTypes.RightParen)
{
return;
}
currentDisplayedInput = currentDisplayedInput + "(";
update_calc_output_label();
lastInput = inputTypes.LeftParen;
// Increase paren count
LeftParenCount++;
}
public static void refreshCallbacks(int keyID, inputTypes inputType)
{
KeyCode key = getKeyNameByID(keyID);
List <keyRegister> keys = getAllRegisterdByKey(key);
keycodes.refreshGlobalKeys(keycodes.keys[key], key);
if (keys.Count > 0)
{
foreach (keyRegister rKey in keys)
{
if (rKey.getKeyInputType() != inputTypes.pressed)
{
// single event
keyObj keyobj = keycodes.keys[key];
if (rKey.getKeyInputType() == inputTypes.up || rKey.getKeyInputType() == inputTypes.repeatedUp)
{
if (keyobj.isUp())
{
rKey.Invoke();
}
}
else
{
if (keyobj.isDown())
{
rKey.Invoke();
}
}
}
else
{
// is pressed
if (inputType == inputTypes.down)
{
rKey.Invoke();
}
}
}
cleanListOf(key, inputType);
}
if (inputType == inputTypes.up)
{
reopenMultipleCallbacks(key);
}
// last
refreshMultipleCallbacks();
}
// Click event handler for the equals/enter button
private void equals_btn_Click(object sender, EventArgs e)
{
if (currentDisplayedInput == "")
{
return;
}
input_Parsing(currentDisplayedInput);
// If the displayed value is a number, keep it as the current input
if (calc_output.Text == "Invalid Input" || calc_output.Text == "Infinity")
{
currentDisplayedInput = "";
lastInput = inputTypes.empty;
}
else
{
currentDisplayedInput = calc_output.Text;
lastInput = inputTypes.Number;
}
}
public static void cleanListOf(KeyCode key, inputTypes input, bool force = false)
{
bool found = false;
foreach (keyRegister rKey in registerdKeys)
{
if (force)
{
// is key
found = true;
registerdKeys.Remove(rKey);
break;
}
else
if (rKey.getKeyCode() == key && rKey.getKeyInputType() != inputTypes.pressed && rKey.getKeyInputType() != inputTypes.repeatedUp && rKey.getKeyInputType() != inputTypes.repeatedDown)
{
if (input == inputTypes.up)
{
if (rKey.getKeyInputType() == inputTypes.up || rKey.getKeyInputType() == inputTypes.repeatedUp)
{
// is key
found = true;
registerdKeys.Remove(rKey);
break;
}
}
else
{
if (rKey.getKeyInputType() == inputTypes.down || rKey.getKeyInputType() == inputTypes.repeatedDown)
{
// is key
found = true;
registerdKeys.Remove(rKey);
break;
}
}
}
}
if (found)
{
cleanListOf(key, input, force);
}
}
// Click event handler for the back button
private void back_btn_Click(object sender, EventArgs e)
{
var delimiters = new[] { ".", "+", "\u2212", "/", "*", "^", "-" };
if (lastInput == inputTypes.empty)
{
return;
}
// Remove the last input
currentDisplayedInput = currentDisplayedInput.Remove(currentDisplayedInput.Length - 1);
update_calc_output_label();
// If there is still an item in the currentDisplayedInput, set last input to its type, else set it to empty
if (currentDisplayedInput != "")
{
String pastToken = currentDisplayedInput[currentDisplayedInput.Length - 1].ToString();
if (delimiters.Contains(pastToken))
{
lastInput = inputTypes.Operator;
}
else if (pastToken == "(")
{
lastInput = inputTypes.LeftParen;
}
else if (pastToken == ")")
{
lastInput = inputTypes.RightParen;
}
else
{
lastInput = inputTypes.Number;
}
}
else
{
lastInput = inputTypes.empty;
}
}
// Click event handler for the clear button
private void clear_btn_Click(object sender, EventArgs e)
{
currentDisplayedInput = "";
update_calc_output_label();
lastInput = inputTypes.empty;
}
// Click event handler for the decimal button
private void decimal_btn_Click(object sender, EventArgs e)
{
currentDisplayedInput = currentDisplayedInput + ".";
update_calc_output_label();
lastInput = inputTypes.Operator;
}
// Click event handler for the 9 button
private void num9_btn_Click(object sender, EventArgs e)
{
currentDisplayedInput = currentDisplayedInput + "9";
update_calc_output_label();
lastInput = inputTypes.Number;
}
public keyRegister(keycodes.registerCallback callback, KeyCode key, inputTypes inputType)
{
this.key = key;
this.callback = callback;
this.inputType = inputType;
}
public static void registerKey(KeyCode key, registerCallback callback, inputTypes inputType)
{
registerdKeys.Add(new keyRegister(callback, key, inputType));
}
