internal void SetDockState(_DockState state, bool onStartDrag = false)
{
//AOutput.Write(this, Name);
var gp = this as _Panel;
if (state == _DockState.LastVisible)
{
if (!this.IsHidden)
{
if (this.IsTabbedPanel)
{
gp.ParentTab.SetDockState(_DockState.LastVisible);
if (this.IsDocked)
{
gp.ParentTab.SetActiveItem(gp);
}
}
if (this.ParentControl is _Float gf)
{
((AWnd)gf).EnsureInScreen();
}
return;
}
state = this.SavedVisibleDockState;
}
var prevState = this.DockState;
if (state == prevState)
{
return;
}
if (this.ParentSplit == null && state == _DockState.Docked) //new panel
{
ADialog.ShowInfo("How to dock floating panels", "Alt+drag and drop.", owner: _manager);
return;
}
bool isTab = gp == null;
_Tab gt = null, gtParent = null;
if (isTab)
{
gt = this as _Tab;
}
else
{
gtParent = gp.ParentTab;
}
this.DockState = state;
//get RECT for floating now, because later this.ParentControl will change and even may be destroyed
RECT rect = default;
if (state == _DockState.Floating)
{
if (!onStartDrag && !SavedFloatingBounds.IsEmptyRect())
{
if (SavedFloatingBounds.X == int.MinValue) //specified only width and height
{
var mp = AMouse.XY;
rect = new RECT(mp.x - 15, mp.y - 15, SavedFloatingBounds.Width, SavedFloatingBounds.Height);
}
else
{
rect = SavedFloatingBounds;
}
rect.EnsureInScreen();
}
else if (this.ParentSplit != null)
{
rect = this.RectangleInScreen;
AWnd.More.WindowRectFromClientRect(ref rect, WS.POPUP | WS.THICKFRAME, WS2.TOOLWINDOW);
}
else //new panel, empty bounds
{
var mp = AMouse.XY;
rect = new RECT(mp.x - 15, mp.y - 15, 300, 150);
rect.EnsureInScreen();
}
}
var panels = isTab ? gt.Items.FindAll(v => v.IsDocked) : new List <_Panel>(1)
{
gp
};
//(isTab ? gt.ActiveItem : gp)?.Content.Hide();
var gtp = isTab ? gt.ActiveItem : gp;
if (gtp != null)
{
if (state != _DockState.Docked && _manager.ZFocusControlOnUndockEtc != null && gtp.Content.ContainsFocus)
{
_manager.ZFocusControlOnUndockEtc.Focus();
}
gtp.Content.Hide();
}
Action postAction = null;
switch (prevState)
{
case _DockState.Docked:
if (gtParent != null)
{
gtParent.OnItemUndocked(gp, out postAction);
}
else
{
this.ParentSplit.OnChildUndocked(this);
}
_manager.Invalidate(this.Bounds, true); //some controls don't redraw properly, eg ToolStripTextBox
break;
case _DockState.Floating:
//case _DockState.AutoHide:
var f = this.ParentControl as _Float;
var parent = (gtParent != null) ? gtParent.ParentControl : _manager;
_parentControl = parent;
foreach (var v in panels)
{
_ChangeParent(v, parent);
}
if (prevState == _DockState.Floating)
{
this.SavedFloatingBounds = f.Bounds;
}
f.Close();
break;
}
switch (state)
{
case _DockState.Docked:
if (gtParent != null)
{
gtParent.OnItemDocked(gp);
}
else
{
this.ParentSplit.OnChildDocked(this);
}
break;
case _DockState.Floating:
var f = new _Float(_manager, this);
this._parentControl = f;
foreach (var v in panels)
{
_ChangeParent(v, f);
}
f.Bounds = rect;
f.Show(_manager.TopLevelControl);
break;
//case _DockState.AutoHide:
// break;
case _DockState.Hidden:
this.SavedVisibleDockState = prevState;
break;
}
if (state != _DockState.Hidden)
{
(isTab ? gt.ActiveItem : gp)?.Content.Show();
}
postAction?.Invoke();
//_manager.Invalidate(true);
if (prevState != _DockState.Hidden)
{
_manager._OnMouseLeave_Common(this.ParentControl); //calls _UnhiliteTabButton and _HideTooltip
}
}