public void SetMark(int pointIndex, StepLineArea area)
{
if (_markedArea != area || _markedPoint != pointIndex)
{
_markedArea = area;
}
_markedPoint = pointIndex;
Redraw();
}
private void DrawMark(WriteableBitmap writeableBitmap, double cx, double cy, double px, double py, StepLineArea area)
{
int x;
int y;
switch (area)
{
case StepLineArea.None:
return;
case StepLineArea.Horizontal:
x = (writeableBitmap.CheckX(GetClientX(px)) + writeableBitmap.CheckX(GetClientX(cx))) / 2;
y = writeableBitmap.CheckY(GetClientY(py));
break;
case StepLineArea.PointPrev:
x = writeableBitmap.CheckX(GetClientX(cx));
y = writeableBitmap.CheckY(GetClientY(py));
break;
case StepLineArea.Vertical:
x = writeableBitmap.CheckX(GetClientX(cx));
y = (writeableBitmap.CheckY(GetClientY(py)) + writeableBitmap.CheckY(GetClientY(cy))) / 2;
break;
case StepLineArea.PointCurrent:
x = writeableBitmap.CheckX(GetClientX(cx));
y = writeableBitmap.CheckY(GetClientY(cy));
break;
default:
throw new ArgumentOutOfRangeException("area");
}
if (x < 3 || x > writeableBitmap.PixelWidth - 3 || y < 3 || y > writeableBitmap.PixelHeight - 3)
{
return;
}
writeableBitmap.FillEllipseCentered(x, y, 3, 3, _intColor);
}
public StepLineHitTestResult(bool success, StepLineArea area, int pointIndex)
: base(success)
{
Area = area;
PointIndex = pointIndex;
}
