void OnToolTipRequest(object sender, ToolTipRequestEventArgs e)
{
if (e.ToolTipShown)
return;
Point mousepos = e.MousePosition;
FoldMarker marker = textArea.TextView.GetFoldMarkerFromPosition(mousepos.X - textArea.TextView.DrawingPosition.X,
mousepos.Y - textArea.TextView.DrawingPosition.Y);
if (marker != null && marker.IsFolded) {
StringBuilder sb = new StringBuilder(marker.InnerText);
// max 10 lines
int endLines = 0;
for (int i = 0; i < sb.Length; ++i) {
if (sb[i] == '\n') {
++endLines;
if (endLines >= 10) {
sb.Remove(i + 1, sb.Length - i - 1);
sb.Append(Environment.NewLine);
sb.Append("...");
break;
}
}
}
sb.Replace("\t", " ");
e.ShowToolTip(sb.ToString());
return;
}
List<TextMarker> markers = textArea.Document.MarkerStrategy.GetMarkers(e.LogicalPosition);
foreach (TextMarker tm in markers) {
if (tm.ToolTip != null) {
e.ShowToolTip(tm.ToolTip.Replace("\t", " "));
return;
}
}
}
protected void RequestToolTip(Point mousePos)
{
if (toolTipRectangle.Contains(mousePos)) {
if (!toolTipActive)
ResetMouseEventArgs();
return;
}
//Console.WriteLine("Request tooltip for " + mousePos);
toolTipRectangle = new Rectangle(mousePos.X - 4, mousePos.Y - 4, 8, 8);
TextLocation logicPos = textView.GetLogicalPosition(mousePos.X - textView.DrawingPosition.Left,
mousePos.Y - textView.DrawingPosition.Top);
bool inDocument = textView.DrawingPosition.Contains(mousePos)
&& logicPos.Y >= 0 && logicPos.Y < Document.TotalNumberOfLines;
ToolTipRequestEventArgs args = new ToolTipRequestEventArgs(mousePos, logicPos, inDocument);
OnToolTipRequest(args);
if (args.ToolTipShown) {
//Console.WriteLine("Set tooltip to " + args.toolTipText);
toolTipActive = true;
SetToolTip(args.toolTipText, inDocument ? logicPos.Y + 1 : -1);
} else {
CloseToolTip();
}
}
protected virtual void OnToolTipRequest(ToolTipRequestEventArgs e)
{
if (ToolTipRequest != null) {
ToolTipRequest(this, e);
}
}
