/// ------------------------------------------------------------------------------------
private void DrawBackground(PaintEventArgs e, Rectangle rc)
{
var rcSegmentedArea = GetFullRectangleForTimeRange(new TimeRange(TimeSpan.Zero,
SegmentBoundaries.LastOrDefault()));
rcSegmentedArea.Intersect(rc);
if (rcSegmentedArea.Width > 0)
{
using (var brush = new SolidBrush(SegmentedBackgroundColor))
e.Graphics.FillRectangle(brush, rcSegmentedArea);
}
FillIgnoredSegments(e, Color.White);
var x = (!SegmentBoundaries.Any()) ? 0 : ConvertTimeToXCoordinate(SegmentBoundaries.Last()) + 1;
if (x > rc.Right)
{
return;
}
if (x > rc.X)
{
rc.Width -= (x - rc.X);
rc.X = x;
}
using (var brush = new SolidBrush(UnsegmentedBackgroundColor))
e.Graphics.FillRectangle(brush, rc);
}
/// ------------------------------------------------------------------------------------
protected virtual bool OnInitiatiatingBoundaryMove(int mouseX, TimeSpan boundary)
{
if (CanBoundaryBeMoved != null && !CanBoundaryBeMoved(boundary, AllowMovingBoundariesWithAdjacetAnnotations))
{
return(false);
}
_scrollCalculator = new WaveControlScrollCalculator(this);
// Figure out the limits within which the boundary may be moved. It's not allowed
// to be moved to the left of the previous boundary or to the right of the next
// boundary.
_minXForBoundaryMove = Painter.ConvertTimeToXCoordinate(SegmentBoundaries.LastOrDefault(b => b < boundary));
var nextBoundary = SegmentBoundaries.FirstOrDefault(b => b > boundary);
bool limitedByEndOfStream = nextBoundary == default(TimeSpan);
if (limitedByEndOfStream)
{
nextBoundary = WaveStream.TotalTime;
}
_maxXForBoundaryMove = Painter.ConvertTimeToXCoordinate(nextBoundary);
if (_minXForBoundaryMove > 0)
{
_minXForBoundaryMove += WavePainterBasic.kBoundaryHotZoneHalfWidth;
}
if (_maxXForBoundaryMove == 0)
{
_maxXForBoundaryMove = ClientSize.Width - WavePainterBasic.kRightDisplayPadding + 1;
}
else if (!limitedByEndOfStream)
{
_maxXForBoundaryMove -= WavePainterBasic.kBoundaryHotZoneHalfWidth;
}
Painter.SetMovingAnchorTime(boundary);
IsBoundaryMovingInProgress = true;
_mouseXAtBeginningOfSegmentMove = mouseX;
return(true);
}
