protected override void OnTextInput(TextCompositionEventArgs args)
{
base.OnTextInput(args);
if (args.Text.Length == 0)
{
return;
}
// Get pushed button
char chKey = Char.ToUpper(args.Text[0]);
// Browsing buttons Перебор кнопок
foreach (UIElement child in (Content as Grid).Children)
{
RoundedButton btn = child as RoundedButton;
string strButton = (btn.Child as TextBlock).Text;
// logic to check for matching button
if ((chKey == strButton[0] && btn != btnDisplay &&
strButton != "Equals" && strButton != "Back") ||
(chKey == '=' && strButton == "Equals") ||
(chKey == '\r' && strButton == "Equals") ||
(chKey == '\b' && strButton == "Back") ||
(chKey == '\x1B' && btn == btnDisplay))
{
// Imitation event Click for hendle pushing button
RoutedEventArgs argsClick =
new RoutedEventArgs(RoundedButton.ClickEvent, btn);
btn.RaiseEvent(argsClick);
// Imitation button press
btn.IsPressed = true;
// Settin timmer for settin button in basic state
DispatcherTimer tmr = new DispatcherTimer();
tmr.Interval = TimeSpan.FromMilliseconds(100);
tmr.Tag = btn;
tmr.Tick += TimerOnTick;
tmr.Start();
args.Handled = true;
}
}
}
// Constructor
public CalculateInHex()
{
Title = "Calculate In Hex";
SizeToContent = SizeToContent.WidthAndHeight;
ResizeMode = ResizeMode.CanMinimize;
// Creating Grid obj as content
Grid grid = new Grid();
grid.Margin = new Thickness(4);
Content = grid;
// Creating 5 Columns
for (int i = 0; i < 5; i++)
{
ColumnDefinition col = new ColumnDefinition();
col.Width = GridLength.Auto;
grid.ColumnDefinitions.Add(col);
}
// Creating 7 rows
for (int i = 0; i < 7; i++)
{
RowDefinition row = new RowDefinition();
row.Height = GridLength.Auto;
grid.RowDefinitions.Add(row);
}
// Text for buttons
string[] strButtons =
{
"0",
"D","E", "F", "+", "&",
"A","B", "C", "-", "|",
"7","8", "9", "*", "^",
"4","5", "6", "/", "<<",
"1","2", "3", "%", ">>",
"0","Back", "Equals"
};
int iRow = 0, iCol = 0;
// Creating Buttons
foreach (string str in strButtons)
{
//Creating RoundedButton
RoundedButton btn = new RoundedButton();
btn.Focusable = false;
btn.Height = 32;
btn.Margin = new Thickness(4);
btn.Click += ButtonOnClick;
// Creating TextBlock obj
// For property Child of obj RoundedButton
TextBlock txt = new TextBlock();
txt.Text = str;
btn.Child = txt;
// Adding RoundedButton obj on Grid panel
grid.Children.Add(btn);
Grid.SetRow(btn, iRow);
Grid.SetColumn(btn, iCol);
// Special for Display Button
if (iRow == 0 && iCol == 0)
{
btnDisplay = btn;
btn.Margin = new Thickness(4, 4, 4, 6);
Grid.SetColumnSpan(btn, 5);
iRow = 1;
}
// For Back & Equals
else if (iRow == 6 && iCol > 0)
{
Grid.SetColumnSpan(btn, 2);
iCol += 2;
}
// For all other buttons
else
{
btn.Width = 32;
if (0 == (iCol = (iCol + 1) % 5))
{
iRow++;
}
}
}
}
// Hendler For Click Event
void ButtonOnClick(object sender, RoutedEventArgs args)
{
// Getting button, whos have been clicked
RoundedButton btn = args.Source as RoundedButton;
if (btn == null)
{
return;
}
// Getting text of button & first char
string strButton = (btn.Child as TextBlock).Text;
char chButton = strButton[0];
// For special cases
if (strButton == "Equals")
{
chButton = '=';
}
if (btn == btnDisplay)
{
numDisplay = 0;
}
else if (strButton == "Back")
{
numDisplay /= 16;
}
// Hex digits
else if (Char.IsLetterOrDigit(chButton))
{
if (bNewNumber)
{
numFirst = numDisplay;
numDisplay = 0;
bNewNumber = false;
}
if (numDisplay <= ulong.MaxValue >> 4)
{
numDisplay = 16 * numDisplay + (ulong)(chButton -
(Char.IsDigit(chButton) ? '0' : 'A' - 10));
}
}
// Working mode
else
{
if (!bNewNumber)
{
switch (chOperation)
{
case '=': break;
case '+': numDisplay = numFirst + numDisplay; break;
case '-': numDisplay = numFirst - numDisplay; break;
case '*': numDisplay = numFirst * numDisplay; break;
case '&': numDisplay = numFirst & numDisplay; break;
case '|': numDisplay = numFirst | numDisplay; break;
case '^': numDisplay = numFirst ^ numDisplay; break;
case '<': numDisplay = numFirst << (int)numDisplay; break;
case '>': numDisplay = numFirst >> (int)numDisplay; break;
case '/':
numDisplay =
numDisplay != 0
? numFirst / numDisplay
: ulong.MaxValue;
break;
case '%':
numDisplay =
numDisplay != 0
? numFirst % numDisplay
: ulong.MaxValue;
break;
default: numDisplay = 0; break;
}
}
bNewNumber = true;
chOperation = chButton;
}
// Correcting input
TextBlock text = new TextBlock();
text.Text = String.Format("{0:X}", numDisplay);
btnDisplay.Child = text;
}
