public MainWindow()
{
InitializeComponent();
PreviewTextBox.Focus();
TextRenderCanvas.set_font(FontName);
}
private void PreviewTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
string text = PreviewTextBox.Text;
// Remove anything between square brackets,
// with the assumption they are control codes
string[] lines = text.Split('\n');
var lines_wihout_codes = lines.Select(x =>
{
while (x.IndexOf(']') > x.LastIndexOf('['))
{
int left_bracket_index = -1, right_bracket_index = -1;
for (int i = x.Length - 1; i >= 0; i--)
{
if (x[i] == ']')
{
right_bracket_index = i + 1;
}
if (x[i] == '[' && right_bracket_index != -1)
{
left_bracket_index = i;
break;
}
}
// Just in case
if (left_bracket_index == -1)
{
break;
}
x = x.Remove(left_bracket_index,
right_bracket_index - left_bracket_index);
}
return(x);
});
text = string.Join("\n", lines_wihout_codes);
TextRenderCanvas.set_text(text);
}
