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anchordocking: fixed hiding docksite when last control gets Visible=false

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git-svn-id: branches/fixes_1_8@55483 -
This commit is contained in:
mattias 2017-07-10 12:50:21 +00:00
parent f144b91d8f
commit 3b529ee86e
1 changed files with 28 additions and 0 deletions
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28
components/anchordocking/anchordocking.pas
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@ -272,6 +272,7 @@ type
Inside: boolean): boolean; virtual;
function DockAnotherControl(Sibling, NewControl: TControl; DockAlign: TAlign;
Inside: boolean): boolean; virtual;
procedure ChildVisibleChanged(Sender: TObject); virtual;
procedure CreatePages; virtual;
procedure FreePages; virtual;
function DockSecondPage(NewControl: TControl): boolean; virtual;
@ -3378,6 +3379,31 @@ begin
FHeaderSide:=AValue;
end;
procedure TAnchorDockHostSite.ChildVisibleChanged(Sender: TObject);
var
AControl: TControl;
begin
if Sender is TControl then begin
AControl:=TControl(Sender);
if not (csDestroying in ComponentState) then begin
if (not AControl.Visible)
and (not ((AControl is TAnchorDockHeader)
or (AControl is TAnchorDockSplitter)
or (AControl is TAnchorDockHostSite)))
then begin
//debugln(['TAnchorDockHostSite.ChildVisibleChanged START ',Caption,' ',dbgs(SiteType),' ',DbgSName(AControl),' UpdatingLayout=',UpdatingLayout]);
if (SiteType=adhstOneControl) then
Hide
else if (SiteType=adhstLayout) then begin
RemoveControlFromLayout(AControl);
UpdateDockCaption;
end;
//debugln(['TAnchorDockHostSite.ChildVisibleChanged END ',Caption,' ',dbgs(SiteType),' ',DbgSName(AControl)]);
end;
end;
end;
end;
procedure TAnchorDockHostSite.Notification(AComponent: TComponent;
Operation: TOperation);
begin
@ -4896,6 +4922,7 @@ begin
//debugln(['TAnchorDockHostSite.RemoveControl ',DbgSName(Self),'=',Caption,' ',DbgSName(AControl)]);
DisableAutoSizing{$IFDEF DebugDisableAutoSizing}('TAnchorDockHostSite.RemoveControl'){$ENDIF};
try
AControl.RemoveHandlerOnVisibleChanged(@ChildVisibleChanged);
inherited RemoveControl(AControl);
if not (csDestroying in ComponentState) then begin
if (not ((AControl is TAnchorDockHeader)
@ -4924,6 +4951,7 @@ begin
or (AControl is TAnchorDockHeader))
then
UpdateDockCaption;
AControl.AddHandlerOnVisibleChanged(@ChildVisibleChanged);
finally
EnableAutoSizing{$IFDEF DebugDisableAutoSizing}('TAnchorDockHostSite.InsertControl'){$ENDIF};
end;