private void DetectorElement_PreviewDrop(object sender, DragEventArgs e)
{
e.Handled = true;
HideHighlight();
TearableTabItem droppedItem = e.Data.GetData(typeof(TearableTabItem)) as TearableTabItem;
if (DropLocation.NA == dropLocation)
{
e.Handled = false;
}
else
{
if (DropLocation.Center != dropLocation)
{
if (null != droppedItem)
{
OnTabDropChanged(e.Data.GetData(typeof(TearableTabItem)) as TearableTabItem);
}
}
else if (this.detectorElement is TearableTabControl)
{
(detectorElement as TearableTabControl)?.DropTab(droppedItem);
}
}
}
private void DetectorElement_DragOver(object sender, DragEventArgs e)
{
mousePosition = e.GetPosition(sender as FrameworkElement);
double vertical = detectorElement.ActualWidth / 3;
double horizontal = detectorElement.ActualHeight / 3;
double opacity = 0.5;
dropLocation = DropLocation.NA;
HideHighlight();
TearableTabItem tabItemTarget = e.Source as TearableTabItem;
if (this.IsChildOf(tabItemTarget))
{
}
TearableTabItem tabItemSource = e.Data.GetData(typeof(TearableTabItem)) as TearableTabItem;
if (this.IsChildOf(tabItemSource))
{
}
if (mousePosition.Y > 25)
{
if (mousePosition.X < vertical)
{
gridLeft.Opacity = opacity;
dropLocation = DropLocation.Left;
}
else if (mousePosition.X > detectorElement.ActualWidth - vertical)
{
gridRight.Opacity = opacity;
dropLocation = DropLocation.Right;
}
else if (mousePosition.Y < horizontal)
{
gridTop.Opacity = opacity;
dropLocation = DropLocation.Top;
}
else if (mousePosition.Y > detectorElement.ActualHeight - horizontal)
{
gridBottom.Opacity = opacity;
dropLocation = DropLocation.Bottom;
}
else
{
gridTop.Opacity = opacity;
gridBottom.Opacity = opacity;
dropLocation = DropLocation.Center;
}
}
}
private void CreateNewRandomTab()
{
Random r = new Random();
String name = String.Format("{0} test tab", tabCount++);
for (int i = 0; i < 1; i++)
{
TearableTabItem tti = new TearableTabItem()
{
Header = name,
Content = new TextBlock()
{
Text = name
},
Background = GetRandomBrush(10, 240)
};
int tabControlIndex = r.Next(4 + tabWindows.Count);
switch (tabControlIndex)
{
case 0:
ttcTestFirst.Items.Add(tti);
break;
case 1:
ttcTestSecond.Items.Add(tti);
break;
case 2:
ttcTestThird.Items.Add(tti);
break;
case 3:
ttcTestFourth.Items.Add(tti);
break;
default:
//tabWindows[tabControlIndex - 4].Items.Add(tti);
break;
}
}
}
public bool DropTab(TearableTabItem tabItem)
{
bool retValue = false;
if (null != ttcLeft)
{
retValue = ttcLeft.DropTab(tabItem);
}
else if (null != ttcRight)
{
retValue = ttcRight.DropTab(tabItem);
}
else if (null != itccLeft)
{
retValue = itccLeft.DropTab(tabItem);
}
else if (null != itccRight)
{
retValue = itccRight.DropTab(tabItem);
}
return(retValue);
}
public bool DropTab(TearableTabItem tabItem)
{
bool retValue = false;
if (null != ttcTop)
{
retValue = ttcTop.DropTab(tabItem);
}
else if (null != ttcBottom)
{
retValue = ttcBottom.DropTab(tabItem);
}
else if (null != itccTop)
{
retValue = itccTop.DropTab(tabItem);
}
else if (null != itccBottom)
{
retValue = itccBottom.DropTab(tabItem);
}
return(retValue);
}
public bool AddSplitControl(DropLocation location, DropLocation sourceLoaction, TearableTabItem ttItem)
{
ITabControlContainer itcc;
Grid droppedItemParent = null;
switch (location)
{
case DropLocation.Top:
case DropLocation.Bottom:
itcc = new TearableTabSplitHorizontal(this);
break;
case DropLocation.Left:
case DropLocation.Right:
itcc = new TearableTabSplitVertical(this);
break;
case DropLocation.Center:
default:
throw new NotSupportedException("Center not supported");
}
switch (sourceLoaction)
{
case DropLocation.Left:
if (ttcLeft.Items.Contains(ttItem) && 1 == ttcLeft.Items.Count)
{
return(false);
}
DetachHandlers(ttcLeft);
gridContentVertical.Children.Remove(ttcLeft);
TearableTabControl ttcLeftTmp = ttcLeft;
if (ttcLeft == null)
{
}
if (itcc.AddControl(location, ttcLeft, ttItem, ref droppedItemParent))
{
ttddLeft.Visibility = Visibility.Collapsed;
ttddLeft.DetachDetectorElement();
Grid.SetColumn(itcc as UIElement, 0);
itccLeft = itcc;
ttcLeft = null;
if (null == droppedItemParent)
{
gridContentVertical.Children.Insert(0, itcc as UIElement);
}
else
{
droppedItemParent.Children.Add(itcc as UIElement);
}
}
else
{
(ttcLeftTmp.Parent as Grid).Children.Remove(ttcLeftTmp);
gridContentVertical.Children.Insert(0, ttcLeftTmp);
}
break;
case DropLocation.Right:
if (ttcRight.Items.Contains(ttItem) && 1 == ttcRight.Items.Count)
{
return(false);
}
DetachHandlers(ttcRight);
gridContentVertical.Children.Remove(ttcRight);
TearableTabControl ttcRightTmp = ttcRight;
if (ttcRight == null)
{
}
if (itcc.AddControl(location, ttcRight, ttItem, ref droppedItemParent))
{
ttddRight.Visibility = Visibility.Collapsed;
ttddRight.DetachDetectorElement();
Grid.SetColumn(itcc as UIElement, 2);
itccRight = itcc;
ttcRight = null;
if (null == droppedItemParent)
{
gridContentVertical.Children.Insert(0, itcc as UIElement);
}
else
{
droppedItemParent.Children.Add(itcc as UIElement);
}
}
else
{
(ttcRightTmp.Parent as Grid).Children.Remove(ttcRightTmp);
gridContentVertical.Children.Insert(0, ttcRightTmp);
}
break;
case DropLocation.Top:
case DropLocation.Bottom:
case DropLocation.Center:
default:
throw new NotSupportedException("Center not supported");
}
//try
//{
// gridContentVertical.Children.Insert(0, itcc as UIElement);
//}
//catch (Exception ex)
//{
//}
return(true);
}
public bool AddControl(DropLocation location, TearableTabControl existingTabControl, TearableTabItem newTabItem, ref Grid droppedItemParent)
{
TearableTabControl ttcNew = new TearableTabControl();
TearableTabControl newTabItemParent = newTabItem.Parent as TearableTabControl;
if (!ttcNew.DropTab(newTabItem))
{
}
switch (location)
{
case DropLocation.Left:
ttcLeft = ttcNew;
ttcRight = existingTabControl;
break;
case DropLocation.Right:
ttcLeft = existingTabControl;
ttcRight = ttcNew;
break;
case DropLocation.Center:
case DropLocation.Top:
case DropLocation.Bottom:
default:
throw new NotSupportedException("Only left and right locations are supported in Horizontal");
}
// This is where it seems to go wrong as well as in TTSH
// Start {
droppedItemParent = existingTabControl.Parent as Grid;
if (null != droppedItemParent)
{
droppedItemParent.Children.Remove(existingTabControl);
}
else
{
}
if (this.IsChildOf(newTabItem))
{
}
// } end
gridContentVertical.Children.Insert(0, ttcLeft);
Grid.SetColumn(ttcLeft, 0);
gridContentVertical.Children.Insert(0, ttcRight);
Grid.SetColumn(ttcRight, 2);
AttachHandlers(ttcLeft);
AttachHandlers(ttcRight);
ttddLeft.AttachDetectorElement(ttcLeft);
ttddRight.AttachDetectorElement(ttcRight);
AttachHandlers(ttddLeft);
AttachHandlers(ttddRight);
return(true);
}
public bool AddSplitControl(DropLocation location, DropLocation sourceLoaction, TearableTabItem ttItem)
{
ITabControlContainer itcc;
Grid droppedItemParent = null;
switch (location)
{
case DropLocation.Top:
case DropLocation.Bottom:
itcc = new TearableTabSplitHorizontal(this);
break;
case DropLocation.Left:
case DropLocation.Right:
itcc = new TearableTabSplitVertical(this);
break;
case DropLocation.Center:
default:
throw new NotSupportedException("Center not supported");
}
tabs[location] = itcc;
switch (sourceLoaction)
{
case DropLocation.Top:
if (ttcTop.Items.Contains(ttItem) && 1 == ttcTop.Items.Count)
{
return(false);
}
DetachHandlers(ttcTop);
gridContentHorizontal.Children.Remove(ttcTop);
TearableTabControl ttcTopTmp = ttcTop;
if (this.TabParent == null)
{
}
if (ttcTop == null)
{
// ADE 20210319
return(false);
}
if (itcc.AddControl(location, ttcTop, ttItem, ref droppedItemParent))
{
ttddTop.Visibility = Visibility.Collapsed;
ttddTop.DetachDetectorElement();
Grid.SetRow(itcc as UIElement, 0);
itccTop = itcc;
ttcTop = null;
if (null == droppedItemParent)
{
gridContentHorizontal.Children.Insert(0, itcc as UIElement);
}
else
{
droppedItemParent.Children.Add(itcc as UIElement);
}
}
else
{
(ttcTopTmp.Parent as Grid).Children.Remove(ttcTopTmp);
gridContentHorizontal.Children.Insert(0, ttcTopTmp);
}
break;
case DropLocation.Bottom:
if (ttcBottom.Items.Contains(ttItem) && 1 == ttcBottom.Items.Count)
{
return(false);
}
DetachHandlers(ttcBottom);
gridContentHorizontal.Children.Remove(ttcBottom);
TearableTabControl ttcBottomTmp = ttcBottom;
if (ttcBottom == null)
{
}
if (itcc.AddControl(location, ttcBottom, ttItem, ref droppedItemParent))
{
ttddBottom.Visibility = Visibility.Collapsed;
ttddBottom.DetachDetectorElement();
Grid.SetRow(itcc as UIElement, 2);
itccBottom = itcc;
ttcBottom = null;
if (null == droppedItemParent)
{
gridContentHorizontal.Children.Insert(0, itcc as UIElement);
}
else
{
droppedItemParent.Children.Add(itcc as UIElement);
}
}
else
{
(ttcBottomTmp.Parent as Grid).Children.Remove(ttcBottomTmp);
gridContentHorizontal.Children.Insert(0, ttcBottomTmp);
}
break;
case DropLocation.Left:
case DropLocation.Right:
case DropLocation.Center:
default:
throw new NotSupportedException("Center not supported");
}
return(true);
}
public void DropTab(TearableTabItem tabItem)
{
tearableTabControlOuter.DropTab(tabItem);
}
private void OnTabDropChanged(TearableTabItem droppedTab)
{
TabDrop?.Invoke(this, new TabDropEventArgs(dropLocation, droppedTab));
}
public TabDropEventArgs(DropLocation location, TearableTabItem tearableTab)
{
this.Location = location;
this.TearableTab = tearableTab;
}