public MainWindow()
{
InitializeComponent();
Messenger.Default.Register <CutBoardArgs>(this, OnReceivedCutBoardArgs);
ArrowWindow arrowWindow = new ArrowWindow();
arrowWindow.Visibility = Visibility.Collapsed;
arrowWindow.Show();
}
protected override void OnDragOver(DragEventArgs drgevent)
{
if (!DesignMode)
{
if (drgevent.KeyState == 1 && drgevent.Data.GetDataPresent(typeof(TabPageEx)))
{
TabPageEx over = OverTab();
if (over != null)
{
TabPageEx draggingTab = drgevent.Data.GetData(typeof(TabPageEx)) as TabPageEx;
int draggingTabIndex = ((KRBTabControl)draggingTab.Parent).TabPages.IndexOf(draggingTab);
int overringTabIndex = this.TabPages.IndexOf(over);
bool checkTabs = over.Parent == draggingTab.Parent;
if (!checkTabs)
draggingTabIndex = overringTabIndex;
if (checkTabs ? overringTabIndex != draggingTabIndex : true)
{
drgevent.Effect = DragDropEffects.Move;
Rectangle rctOver = this.GetTabRect(overringTabIndex);
if (overringTabIndex == 0)
{
rctOver.X += _tabHOffset;
}
if (_alignments == TabAlignments.Top)
{
rctOver.Y += 3;
}
else
{
rctOver.Y -= 3;
}
if (dragDropArrowArray[0] == null)
dragDropArrowArray[0] = new ArrowWindow(Resources.UpArrow, 255);
if (dragDropArrowArray[1] == null)
dragDropArrowArray[1] = new ArrowWindow(Resources.DownArrow, 255);
Point upArrowPoint = Point.Empty;
Point downArrowPoint = Point.Empty;
if (overringTabIndex > draggingTabIndex)
{
if (_alignments == TabAlignments.Top)
{
downArrowPoint = new Point(rctOver.Right - dragDropArrowArray[1].Width / 2 + 1, rctOver.Top + 2 - dragDropArrowArray[1].Height);
upArrowPoint = new Point(rctOver.Right - dragDropArrowArray[0].Width / 2 + 1, rctOver.Bottom - 10);
}
else
{
downArrowPoint = new Point(rctOver.Right - dragDropArrowArray[1].Width / 2 + 1, rctOver.Top + 11 - dragDropArrowArray[1].Height);
upArrowPoint = new Point(rctOver.Right - dragDropArrowArray[0].Width / 2 + 1, rctOver.Bottom - 3);
}
}
else
{
if (_alignments == TabAlignments.Top)
{
downArrowPoint = new Point(rctOver.Left - dragDropArrowArray[1].Width / 2 + 1, rctOver.Top + 2 - dragDropArrowArray[1].Height);
upArrowPoint = new Point(rctOver.Left - dragDropArrowArray[0].Width / 2 + 1, rctOver.Bottom - 10);
}
else
{
downArrowPoint = new Point(rctOver.Left - dragDropArrowArray[1].Width / 2 + 1, rctOver.Top + 11 - dragDropArrowArray[1].Height);
upArrowPoint = new Point(rctOver.Left - dragDropArrowArray[0].Width / 2 + 1, rctOver.Bottom - 3);
}
}
dragDropArrowArray[0].Location = this.PointToScreen(upArrowPoint);
dragDropArrowArray[1].Location = this.PointToScreen(downArrowPoint);
if (!dragDropArrowArray[0].Visible)
dragDropArrowArray[0].Show();
if (!dragDropArrowArray[1].Visible)
dragDropArrowArray[1].Show();
}
else
drgevent.Effect = DragDropEffects.None;
}
else
drgevent.Effect = DragDropEffects.None;
}
else
drgevent.Effect = DragDropEffects.None;
}
base.OnDragOver(drgevent);
}
