private void UpdateControl(LoggingEvent loggingEvent)
{
// There may be performance issues if the buffer gets too long
// So periodically clear the buffer
if (richTextBox.TextLength > maxTextLength)
{
richTextBox.Clear();
richTextBox.AppendText(string.Format("(Cleared log length max: {0})\n", maxTextLength));
}
// look for a style mapping
LevelTextStyle selectedStyle = levelMapping.Lookup(loggingEvent.Level) as LevelTextStyle;
if (selectedStyle != null)
{
// set the colors of the text about to be appended
richTextBox.SelectionBackColor = selectedStyle.BackColor;
richTextBox.SelectionColor = selectedStyle.TextColor;
// alter selection font as much as necessary
// missing settings are replaced by the font settings on the control
if (selectedStyle.Font != null)
{
// set Font Family, size and styles
richTextBox.SelectionFont = selectedStyle.Font;
}
else if (selectedStyle.PointSize > 0 && richTextBox.Font.SizeInPoints != selectedStyle.PointSize)
{
// use control's font family, set size and styles
float size = selectedStyle.PointSize > 0.0f ? selectedStyle.PointSize : richTextBox.Font.SizeInPoints;
richTextBox.SelectionFont = new Font(richTextBox.Font.FontFamily.Name, size, selectedStyle.FontStyle);
}
else if (richTextBox.Font.Style != selectedStyle.FontStyle)
{
// use control's font family and size, set styles
richTextBox.SelectionFont = new Font(richTextBox.Font, selectedStyle.FontStyle);
}
}
richTextBox.AppendText(RenderLoggingEvent(loggingEvent));
}
public void AddMapping(LevelTextStyle mapping)
{
levelMapping.Add(mapping);
}