private void collapseItem()
{
IOTabControl control = this.Parent as IOTabControl;
this.Visibility = Visibility.Collapsed;
var content = this.Content as UIElement;
content.Visibility = Visibility.Collapsed;
if (this.IsSelected)
{
control.SelectedIndex = -1;
foreach (IOTabItem item in control.Items)
{
if (item.Visibility == Visibility.Visible)
{
control.SelectedItem = item;
break;
}
}
}
var window = WinIOAPP.Current.MainWindow as WinIO.WPF.MainWindow;
showIoMenuItem = window.CreatePanelMenuItem(this.Header, this);
}
protected override void OnDrop(DragEventArgs e)
{
base.OnDrop(e);
//检查数据是否包含制定字符串类型数据
if (e.Data.GetDataPresent("IOTabItem"))
{
//获取字符串
IOTabItem item = (IOTabItem)e.Data.GetData("IOTabItem");
IOTabControl parent = (IOTabControl)item.Parent;
if (parent != this)
{
parent.Items.Remove(item);
this.Items.Add(item);
this.SelectedItem = item;
item.TabPanelID = ((MainWindow)WinIOAPP.Instance.MainWindow).GetTabIndex(this);
}
else
{
// Point point = item.TranslatePoint(new Point(), parent);
// 获得鼠标下面的控件
Point dragPoint = e.GetPosition(parent);
IOTabItem hit = null;
VisualTreeHelper.HitTest(parent, null, new HitTestResultCallback(
(HitTestResult result) => {
if (result.VisualHit is Border && result.VisualHit.GetValue(NameProperty).ToString() == "TabItemBorder")
{
hit = (result.VisualHit as Border).TemplatedParent as IOTabItem;
return(HitTestResultBehavior.Stop);
}
return(HitTestResultBehavior.Continue);
}),
new PointHitTestParameters(dragPoint));
if (hit != null)
{
int insertIndex = parent.Items.IndexOf(hit);
parent.Items.Remove(item);
parent.Items.Insert(insertIndex, item);
this.SelectedItem = item;
}
}
}
e.Handled = true;
}