private void DoInplaceHighlighting(
IMessage msg,
PointF location,
StringSlice text,
int lineBegin, int lineEnd,
IHighlightingHandler handler,
Brush brush)
{
if (handler != null)
{
foreach (var hlRange in handler.GetHighlightingRanges(msg))
{
int?hlBegin = null;
int?hlEnd = null;
if (hlRange.Item1 >= lineBegin && hlRange.Item1 <= lineEnd)
{
hlBegin = hlRange.Item1;
}
if (hlRange.Item2 >= lineBegin && hlRange.Item2 <= lineEnd)
{
hlEnd = hlRange.Item2;
}
if (hlBegin != null || hlEnd != null)
{
var tmp = DrawingUtils.GetLineSubstringBounds(
text.SubString(lineBegin, lineEnd - lineBegin).Value,
hlBegin.GetValueOrDefault(lineBegin) - lineBegin,
hlEnd.GetValueOrDefault(lineEnd) - lineBegin,
ctx.Canvas,
ctx.Font,
ctx.TextFormat,
m.MessageRect, location.X);
tmp.Inflate(0, -1);
if (brush == null)
{
var cl = hlRange.Item3.GetBackgroundColor();
if (cl != null)
{
using (var tmpBrush = new Brush(cl.Value.ToColor()))
{
FillInplaceHightlightRectangle(ctx, tmp, tmpBrush);
}
}
}
else
{
FillInplaceHightlightRectangle(ctx, tmp, brush);
}
}
}
}
}
protected override void HandleMessageText(IMessage msg, float textXPos)
{
DrawContext dc = ctx;
var line = dc.GetTextToDisplay(msg).GetNthTextLine(pos.TextLineIndex);
var lineCharIdx = pos.LineCharIndex;
if (lineCharIdx > line.Value.Length)
{
return; // defensive measure to avoid crash in UI thread
}
RectangleF tmp = DrawingUtils.GetLineSubstringBounds(
line.Value + '*', lineCharIdx, lineCharIdx + 1,
dc.Canvas, dc.Font, ctx.TextFormat,
m.MessageRect, m.OffsetTextRect.X + textXPos
);
dc.Canvas.DrawLine(dc.CursorPen, tmp.X, tmp.Top, tmp.X, tmp.Bottom);
}
void DrawMessageBackground(IMessage msg, float textXPos)
{
DrawContext dc = ctx;
Rectangle r = m.MessageRect;
r.Offset(ctx.CollapseBoxesAreaSize, 0);
Brush b = null;
Brush tmpBrush = null;
if (msg.Thread != null)
{
var coloring = dc.Coloring;
if (coloring == Settings.Appearance.ColoringMode.None)
{
b = dc.DefaultBackgroundBrush;
}
else if (msg.Thread.IsDisposed)
{
b = dc.DefaultBackgroundBrush;
}
else if (coloring == Settings.Appearance.ColoringMode.Threads)
{
b = tmpBrush = new Brush(msg.Thread.ThreadColor.ToColor());
}
else if (coloring == Settings.Appearance.ColoringMode.Sources)
{
b = (msg.LogSource == null || msg.LogSource.IsDisposed) ? dc.DefaultBackgroundBrush : (tmpBrush = new Brush(msg.LogSource.Color.ToColor()));
}
}
if (b == null)
{
b = dc.DefaultBackgroundBrush;
}
dc.Canvas.FillRectangle(b, r);
var normalizedSelection = dc.NormalizedSelection;
if (!normalizedSelection.IsEmpty &&
DisplayIndex >= normalizedSelection.First.DisplayIndex &&
DisplayIndex <= normalizedSelection.Last.DisplayIndex)
{
int selectionStartIdx;
int selectionEndIdx;
var line = dc.GetTextToDisplay(msg).GetNthTextLine(TextLineIdx);
if (DisplayIndex == normalizedSelection.First.DisplayIndex)
{
selectionStartIdx = normalizedSelection.First.LineCharIndex;
}
else
{
selectionStartIdx = 0;
}
if (DisplayIndex == normalizedSelection.Last.DisplayIndex)
{
selectionEndIdx = normalizedSelection.Last.LineCharIndex;
}
else
{
selectionEndIdx = line.Length;
}
if (selectionStartIdx < selectionEndIdx && selectionStartIdx >= 0 && selectionEndIdx <= line.Value.Length)
{
RectangleF tmp = DrawingUtils.GetLineSubstringBounds(
line.Value, selectionStartIdx, selectionEndIdx,
ctx.Canvas, dc.Font, ctx.TextFormat,
m.MessageRect, m.OffsetTextRect.X + textXPos);
dc.Canvas.FillRectangle(dc.SelectedBkBrush, tmp);
}
}
if (ctx.ShowTime)
{
float x = ctx.CollapseBoxesAreaSize + ctx.TimeAreaSize - ctx.ScrollPos.X - 2;
if (x > ctx.CollapseBoxesAreaSize)
{
ctx.Canvas.DrawLine(ctx.TimeSeparatorLine, x, m.MessageRect.Y, x, m.MessageRect.Bottom);
}
}
if (tmpBrush != null)
{
tmpBrush.Dispose();
}
}