public static void MouseMoveHelper(
IPresentationDataAccess presentationDataAccess,
DrawContext drawContext,
Rectangle clientRectangle,
IViewEvents viewEvents,
Point pt,
bool isLeftDrag,
out CursorType newCursor
)
{
newCursor = CursorType.Arrow;
if (presentationDataAccess != null)
{
foreach (var i in DrawingUtils.GetVisibleMessagesIterator(drawContext, presentationDataAccess, clientRectangle))
{
DrawingUtils.Metrics mtx = DrawingUtils.GetMetrics(i, drawContext);
if (pt.Y >= mtx.MessageRect.Top && pt.Y < mtx.MessageRect.Bottom)
{
if (isLeftDrag)
{
var hitTester = new HitTestingVisitor(drawContext, mtx, pt.X, i.TextLineIndex);
i.Message.Visit(hitTester);
MessageMouseEventFlag flags = MessageMouseEventFlag.ShiftIsHeld
| MessageMouseEventFlag.CapturedMouseMove;
if (pt.X < drawContext.CollapseBoxesAreaSize)
{
flags |= MessageMouseEventFlag.OulineBoxesArea;
}
viewEvents.OnMessageMouseEvent(i, hitTester.LineTextPosition, flags, pt);
}
if (i.Message.IsStartFrame() && mtx.OulineBox.Contains(pt))
{
newCursor = CursorType.Arrow;
}
else if (pt.X < drawContext.CollapseBoxesAreaSize)
{
newCursor = CursorType.RightToLeftArrow;
}
else if (pt.X >= drawContext.GetTextOffset(0, 0).X)
{
newCursor = CursorType.IBeam;
}
else
{
newCursor = CursorType.Arrow;
}
}
}
}
}
public static Metrics GetMetrics(ViewLine line, DrawContext dc)
{
Point offset = dc.GetTextOffset(line.Message.Level, line.LineIndex);
Metrics m;
m.MessageRect = new Rectangle(
0,
offset.Y,
dc.ViewWidth,
dc.LineHeight
);
m.TimePos = new Point(
dc.CollapseBoxesAreaSize - dc.ScrollPos.X,
m.MessageRect.Y
);
int charCount = dc.GetTextToDisplay(line.Message).GetNthTextLine(line.TextLineIndex).Length;
m.OffsetTextRect = new Rectangle(
offset.X,
m.MessageRect.Y,
(int)((double)charCount * dc.CharWidthDblPrecision),
m.MessageRect.Height
);
m.OulineBoxCenter = new Point(
line.IsBookmarked ?
dc.OutlineBoxSize / 2 + 1 :
dc.CollapseBoxesAreaSize / 2,
m.MessageRect.Y + dc.LineHeight / 2
);
m.OulineBox = new Rectangle(
m.OulineBoxCenter.X - dc.OutlineBoxSize / 2,
m.OulineBoxCenter.Y - dc.OutlineBoxSize / 2,
dc.OutlineBoxSize,
dc.OutlineBoxSize
);
return(m);
}