public override void onMouseMove(object sender, MouseMoveEventArgs e)
{
base.onMouseMove(sender, e);
if (!(HasFocus && holdCursor))
{
return;
}
TabView tv = Parent as TabView;
TabItem previous = null, next = null;
int tmp = TabOffset + e.XDelta;
if (tmp < tv.Spacing)
{
TabOffset = tv.Spacing;
}
else if (tmp > Parent.getSlot().Width - TabTitle.Slot.Width - tv.Spacing)
{
TabOffset = Parent.getSlot().Width - TabTitle.Slot.Width - tv.Spacing;
}
else
{
int idx = tv.Children.IndexOf(this);
if (idx > 0 && e.XDelta < 0)
{
previous = tv.Children [idx - 1] as TabItem;
if (tmp < previous.TabOffset + previous.TabTitle.Slot.Width / 2)
{
tv.Children.RemoveAt(idx);
tv.Children.Insert(idx - 1, this);
tv.SelectedTab = idx - 1;
tv.UpdateLayout(LayoutingType.ArrangeChildren);
}
}
else if (idx < tv.Children.Count - 1 && e.XDelta > 0)
{
next = tv.Children [idx + 1] as TabItem;
if (tmp > next.TabOffset - next.TabTitle.Slot.Width / 2)
{
tv.Children.RemoveAt(idx);
tv.Children.Insert(idx + 1, this);
tv.SelectedTab = idx + 1;
tv.UpdateLayout(LayoutingType.ArrangeChildren);
}
}
TabOffset = tmp;
}
}
public override void onMouseMove(object sender, MouseMoveEventArgs e)
{
base.onMouseMove(sender, e);
if (Parent == null)
{
return;
}
if (!IsDragged)
{
return;
}
TabView tv = Parent as TabView;
if (Math.Abs(e.Position.Y - dragStartPoint.Y) > dragThreshold ||
Math.Abs(e.Position.X - dragStartPoint.X) > dragThreshold)
{
makeFloating(tv);
return;
}
Rectangle cb = ClientRectangle;
int tmp = TabOffset + e.XDelta;
if (tmp < tview.LeftSlope)
{
TabOffset = tview.LeftSlope;
}
else if (tmp > cb.Width - tv.RightSlope - tv.TabWidth)
{
TabOffset = cb.Width - tv.RightSlope - tv.TabWidth;
}
else
{
dragStartPoint.X = e.Position.X;
TabItem[] tabItms = tv.Children.Cast <TabItem>().OrderBy(t => t.ViewIndex).ToArray();
if (ViewIndex > 0 && e.XDelta < 0)
{
TabItem previous = tabItms [ViewIndex - 1];
if (tmp < previous.TabOffset + tview.TabWidth / 2)
{
previous.ViewIndex = ViewIndex;
ViewIndex--;
tv.UpdateLayout(LayoutingType.ArrangeChildren);
}
}
else if (ViewIndex < tabItms.Length - 1 && e.XDelta > 0)
{
TabItem next = tabItms [ViewIndex + 1];
if (tmp > next.TabOffset - tview.TabWidth / 2)
{
next.ViewIndex = ViewIndex;
ViewIndex++;
tv.UpdateLayout(LayoutingType.ArrangeChildren);
}
}
TabOffset = tmp;
}
}
public override void onMouseUp(object sender, MouseButtonEventArgs e)
{
base.onMouseUp(sender, e);
tview.UpdateLayout(LayoutingType.ArrangeChildren);
}