private void textEntrySubmittedHandler(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
string contents = textBox1.Text;
textBox1.Text = "";
if (contents.Trim().Equals(""))
{
return;
}
history.Push(contents);
DisplayEntry dmEntry = new DisplayEntry(DisplayType.CALCULATION, contents);
addDisplayEntry(dmEntry);
CalculatorMessage cm = calc.evalulate(contents);
DisplayEntry dm = new DisplayEntry((cm.getStatus() == Status.SUCCESS) ? DisplayType.RESULT : DisplayType.ERROR, cm.getBody());
addDisplayEntry(dm);
while (reverseHistory.Count != 0)
{
history.Push(reverseHistory.Pop());
}
} else if (e.KeyCode == Keys.Up)
{
// Revert to history
if (history.Count > 0)
{
reverseHistory.Push(textBox1.Text);
textBox1.Text = history.Pop();
}
} else if (e.KeyCode == Keys.Down)
{
if (!textBox1.Text.Trim().Equals("") && reverseHistory.Count > 0)
{
string contents = textBox1.Text;
textBox1.Text = reverseHistory.Pop();
history.Push(contents);
}
}
}
private void addDisplayEntry(DisplayEntry entry)
{
writeHTMLToWebBrowser(entry.getHTML());
}
