protected virtual void UpdateHintPosition(Point mousePosition)
{
RadListElement nodeElement = this.DropTarget as RadListElement;
RadListVisualItem item = nodeElement.ElementTree.GetElementAtPoint(nodeElement.ElementTree.Control.PointToClient(mousePosition)) as RadListVisualItem;
if (item == null)
{
return;
}
Rectangle itemBounds = nodeElement.ElementTree.Control.RectangleToScreen(item.ControlBoundingRectangle);
Padding margins = Padding.Empty;
int imageHeight = 1;
//if (this.DropHintColor == Color.Empty)
//{
// RadImageShape imageShape = this.owner.ItemDropHint;
// imageHeight = imageShape.Image.Size.Height;
// margins = imageShape.Margins;
//}
Point client = nodeElement.PointFromScreen(mousePosition);
bool isDropAtTop = client.Y <= nodeElement.Size.Height / 2;
int y = isDropAtTop ? itemBounds.Y : itemBounds.Bottom;
Point hitLocation = new Point(itemBounds.X - margins.Left, y - imageHeight / 2);
this.dropHintWindow.Width = itemBounds.Width;
this.dropHintWindow.ShowWindow(hitLocation);
}
protected virtual bool CanShowDropHint(Point mousePosition)
{
RadListElement dropTarget = this.DropTarget as RadListElement;
if (dropTarget == null)
return false;
Point point = dropTarget.PointFromScreen(mousePosition);
int num = dropTarget.ItemHeight / 3;
if (point.Y >= num)
return point.Y > num * 2;
return true;
}
protected virtual void UpdateHintPosition(Point mousePosition)
{
RadListElement dropTarget = this.DropTarget as RadListElement;
RadListVisualItem elementAtPoint = dropTarget.ElementTree.GetElementAtPoint(dropTarget.ElementTree.Control.PointToClient(mousePosition)) as RadListVisualItem;
if (elementAtPoint == null)
return;
Rectangle screen = dropTarget.ElementTree.Control.RectangleToScreen(elementAtPoint.ControlBoundingRectangle);
Padding empty = Padding.Empty;
int num1 = 1;
int num2 = dropTarget.PointFromScreen(mousePosition).Y <= dropTarget.Size.Height / 2 ? screen.Y : screen.Bottom;
Point screenLocation = new Point(screen.X - empty.Left, num2 - num1 / 2);
this.dropHintWindow.Width = screen.Width;
this.dropHintWindow.ShowWindow(screenLocation);
}
protected virtual bool CanShowDropHint(Point mousePosition)
{
RadListElement element = this.DropTarget as RadListElement;
if (element == null)
{
return(false);
}
Point client = element.PointFromScreen(mousePosition);
int part = element.ItemHeight / 3;
return(client.Y < part || client.Y > part * 2);
}
