public override bool HandleMouseInput(MouseInput mi)
{
if (mi.Button != MouseButton.Left) return false;
if (IsDisabled()) return false;
if (mi.Event == MouseInputEvent.Down && !TakeMouseFocus(mi)) return false;
if (!HasMouseFocus) return false;
switch(mi.Event)
{
case MouseInputEvent.Up:
isMoving = false;
YieldMouseFocus(mi);
break;
case MouseInputEvent.Down:
isMoving = true;
/* TODO: handle snapping to ticks properly again */
/* TODO: handle nudge via clicking outside the thumb */
UpdateValue(ValueFromPx(mi.Location.X - RenderBounds.Left));
break;
case MouseInputEvent.Move:
if (isMoving)
UpdateValue(ValueFromPx(mi.Location.X - RenderBounds.Left));
break;
}
return ThumbRect.Contains(mi.Location);
}
protected override void OnGesture(Gesture gesture)
{
if (ThumbRect == ScreenBounds)
{
return;
}
switch (gesture.GestureType)
{
case GestureType.CapturedByOther:
if (_touchId == gesture.TouchId)
{
_touchId = 0;
}
break;
case GestureType.Down:
if (ThumbRect.Contains(gesture.Origin.ToPoint()))
{
if (_touchId == 0)
{
_touchId = gesture.TouchId;
gesture.SetHandled();
_scrollPositionOnDown = _vertical ? _element.ScrollingService.ScrollPositionY : _element.ScrollingService.ScrollPositionX;
}
}
break;
case GestureType.Move:
if (_touchId == gesture.TouchId)
{
gesture.SetHandled();
UpdatePosition(gesture.Origin, gesture.Position);
}
break;
case GestureType.Up:
if (_touchId == gesture.TouchId)
{
_touchId = 0;
}
break;
case GestureType.VerticalDrag:
case GestureType.HorizontalDrag:
if (_touchId == gesture.TouchId)
{
gesture.SetHandled();
gesture.CapturePointer(this);
}
break;
}
}
public override void OnTouchDown(GPoint point)
{
_isThumbSelected = ThumbRect.Contains(new PointF((float)point.X, (float)point.Y));
if (_isThumbSelected)
{
AnimateMaterialThumbSize(true);
}
UpdateValue(point);
}
/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
protected virtual ScrollBarArea HitTest(Point p)
{
if (TopLeftArrowRect.Contains(p))
return ScrollBarArea.TopLeftArrow;
if (TopLeftInnerRect.Contains(p))
return ScrollBarArea.TopLeftInside;
if (ThumbRect.Contains(p))
return ScrollBarArea.Thumb;
if (BottomRightInnerRect.Contains(p))
return ScrollBarArea.BottomRightInside;
if (BottomRightArrowRect.Contains(p))
return ScrollBarArea.BottomRightArrow;
return ScrollBarArea.Outside;
}
/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
protected virtual ScrollBarArea HitTest(Point p)
{
if (TopLeftArrowRect.Contains(p))
{
return(ScrollBarArea.TopLeftArrow);
}
if (TopLeftInnerRect.Contains(p))
{
return(ScrollBarArea.TopLeftInside);
}
if (ThumbRect.Contains(p))
{
return(ScrollBarArea.Thumb);
}
if (BottomRightInnerRect.Contains(p))
{
return(ScrollBarArea.BottomRightInside);
}
if (BottomRightArrowRect.Contains(p))
{
return(ScrollBarArea.BottomRightArrow);
}
return(ScrollBarArea.Outside);
}