public ExRichTextBox()
{
windowExtender = new WindowExtender(this);
windowExtender.AssignHandle(Handle);
SelectionTabs = ArrayFunctions.array(32, 64, 96, 128, 160, 192, 224);
leftMargin = 0;
modificationStates = new List <ModificationState>();
TextChanged += (_, _) =>
{
if (!ModificationLocked)
{
var lineCount = Lines.Length;
if (lineCount > 0)
{
if (modificationStates.Count < lineCount)
{
while (modificationStates.Count < CurrentLineNumber)
{
modificationStates.Add(ModificationState.Unmodified);
}
while (modificationStates.Count < lineCount)
{
modificationStates.Insert(CurrentLineNumber, ModificationState.Unmodified);
}
}
else
{
while (modificationStates.Count > lineCount)
{
modificationStates.RemoveAt(CurrentLineNumber);
}
}
if (CurrentLineNumber.Between(0).Until(modificationStates.Count))
{
modificationStates[CurrentLineNumber] = ModificationState.Modified;
}
}
}
LineChanged?.Invoke(this, new LineChangedEventArgs(CurrentLineNumber));
};
}
private void OnLineChanged(object sender, MixerEventArgs e)
{
LineChanged?.Invoke(sender, e);
}
protected virtual void OnLineChanged() => LineChanged?.Invoke();
