public Tests()
{
x = new StringToFormula();
InitializeComponent();
}
public MainWindow()
{
InitializeComponent();
// ------------------------------- Initialize all variables. ------------------------------------------
stf = new StringToFormula(); // Object Used to compute expressions
prev_op = ""; // Represents the previous operation.
res_op = true;
// State variables used for [Monomial Operator Button]
MonoString = ""; // Stores the entire Expression(String) of repeated [Monomial operators]
oldHist = ""; // Stores the value of the history window before the first [Monomial Operator] is pressed
// State Variables used for [Parenthesis Operator Button]
perCount = 0; // Counts the number of mismatched parenthesis
// --------------- (Bind all buttons to a function based off of name)-------------------------------
/*
*
*
* EXPLAINATION OF BINDING CODE
* ---------------------------------------------------------------------------------
* Naming conventions of buttons are (View XAML Code for all the names):
* 1. [Classification]_[Name]
* 2. [Classification]_[Type]_[Name]
*
* The following code splits the buttons Name splits the data into the variable <calcButtonNameArr>
* calcButtonNameArr = {"[Classifcation]", "[Type]","[Name]"}
* and binds the button based on its [Classification] and [Type]
*
* Examples:
* ---------------------
| Operation_Bin_plus | ----> Classification = Operation , Type = Bin , Name = plus
| ---------------------
|
| ---------------------
| Number_1 | ----> Classification = Operation and Name = 1
| ---------------------
| ---------------------------------------------------------------------------------
*/
for (int i = 0; i < grid.Children.Count; i++)
{
Button calcButton = (Button)grid.Children[i]; // Grabs button from buttonGrid
String[] calcButtonNameArr = calcButton.Name.Split('_'); // Splits the name
String calcButtonClfctin = calcButtonNameArr[0]; // Grabs the button classification
switch (calcButtonClfctin)
{
case "Number":
calcButton.Click += new RoutedEventHandler(Numbers_Clicked);
break;
case "Constant":
calcButton.Click += new RoutedEventHandler(Constants_Clicked);
break;
case "Operation":
String calcButtonType = calcButtonNameArr[1];
switch (calcButtonType)
{
// binary operations (+,-,/,*)
case "Bin":
calcButton.Click += new RoutedEventHandler(Operations_Clicked);
break;
// Monomial Operations
case "Mon":
calcButton.Click += new RoutedEventHandler(Operations_mono_Clicked);
break;
// Parenthesis
case "Per":
calcButton.Click += new RoutedEventHandler(Operations_Per_Clicked);
break;
// Equal to operation (=)
case "Result":
calcButton.Click += new RoutedEventHandler(Operations_Res_Clicked);
break;
// Clear opeartion
case "clr":
calcButton.Click += new RoutedEventHandler(Operations_clr_Clicked);
break;
}
break;
}
// Update grid button
grid.Children[i] = calcButton;
}
}