private void SendTheMessageToRichTextBox(string logMessage, WpfRichTextBoxRowColoringRule rule)
{
System.Windows.Controls.RichTextBox rtbx = TargetRichTextBox;
var scrolledToEnd =
AutoScroll &&
(TargetRichTextBox.VerticalOffset + TargetRichTextBox.ViewportHeight) >= (TargetRichTextBox.ExtentHeight - .1);
var tr = new TextRange(rtbx.Document.ContentEnd, rtbx.Document.ContentEnd);
tr.Text = logMessage + "\n";
tr.ApplyPropertyValue(TextElement.ForegroundProperty,
new SolidColorBrush(GetColorFromString(rule.FontColor, (Brush)tr.GetPropertyValue(TextElement.ForegroundProperty)))
);
tr.ApplyPropertyValue(TextElement.BackgroundProperty,
new SolidColorBrush(GetColorFromString(rule.BackgroundColor, (Brush)tr.GetPropertyValue(TextElement.BackgroundProperty)))
);
tr.ApplyPropertyValue(TextElement.FontStyleProperty, rule.Style);
tr.ApplyPropertyValue(TextElement.FontWeightProperty, rule.Weight);
if (MaxLines > 0)
{
while (rtbx.Document.Blocks.Count - 1 > MaxLines)
{
rtbx.Document.Blocks.Remove(rtbx.Document.Blocks.FirstBlock);
}
}
if (AutoScroll && scrolledToEnd)
{
rtbx.ScrollToEnd();
}
}
protected override void Write(LogEventInfo logEvent)
{
WpfRichTextBoxRowColoringRule matchingRule = RowColoringRules.FirstOrDefault(rr => rr.CheckCondition(logEvent));
if (UseDefaultRowColoringRules && matchingRule == null)
{
foreach (var rr in DefaultRowColoringRules.Where(rr => rr.CheckCondition(logEvent)))
{
matchingRule = rr;
break;
}
}
if (matchingRule == null)
{
matchingRule = WpfRichTextBoxRowColoringRule.Default;
}
var logMessage = Layout.Render(logEvent);
if (System.Windows.Application.Current == null)
{
return;
}
try
{
if (System.Windows.Application.Current.Dispatcher.CheckAccess() == false)
{
System.Windows.Application.Current.Dispatcher.Invoke(() => SendTheMessageToRichTextBox(logMessage, matchingRule));
}
else
{
SendTheMessageToRichTextBox(logMessage, matchingRule);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
static WpfRichTextBoxRowColoringRule()
{
Default = new WpfRichTextBoxRowColoringRule();
}
static WpfRichTextBoxRowColoringRule()
{
Default = new WpfRichTextBoxRowColoringRule();
}