void _paintTickMarks(
Canvas canvas,
Rect trackLeft,
Rect trackRight,
Paint leftPaint,
Paint rightPaint)
{
if (this.isDiscrete)
{
const float tickRadius = _trackHeight / 2.0f;
float trackWidth = trackRight.right - trackLeft.left;
float dx = (trackWidth - _trackHeight) / this.divisions.Value;
if (dx >= 3.0 * _trackHeight)
{
for (int i = 0; i <= this.divisions.Value; i += 1)
{
float left = trackLeft.left + i * dx;
Offset center = new Offset(left + tickRadius, trackLeft.top + tickRadius);
if (trackLeft.contains(center))
{
canvas.drawCircle(center, tickRadius, leftPaint);
}
else if (trackRight.contains(center))
{
canvas.drawCircle(center, tickRadius, rightPaint);
}
}
}
}
}
public bool?hitTest(Offset position)
{
if (_thumbRect == null)
{
return(null);
}
if (fadeoutOpacityAnimation.value == 0.0f)
{
return(false);
}
return(_thumbRect.contains(position));
}
public bool hitTestInteractive(Offset position)
{
if (_thumbRect == null)
{
return(false);
}
if (fadeoutOpacityAnimation.value == 0.0f)
{
return(false);
}
Rect interactiveThumbRect = _thumbRect.expandToInclude(
Rect.fromCircle(center: _thumbRect.center, radius: ScrollbarPainterUtils._kMinInteractiveSize / 2)
);
return(interactiveThumbRect.contains(position));
}