diff options
-rw-r--r-- | include/vcl/layout.hxx | 1 | ||||
-rw-r--r-- | vcl/source/window/layout.cxx | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/include/vcl/layout.hxx b/include/vcl/layout.hxx index c69b44b08248..0ed3e6c5976e 100644 --- a/include/vcl/layout.hxx +++ b/include/vcl/layout.hxx @@ -459,6 +459,7 @@ private: private: friend class VclBuilder; void designate_label(Window *pWindow); + DECL_LINK(WindowEventListener, VclSimpleEvent*); public: VclFrame(Window *pParent) : VclBin(pParent) diff --git a/vcl/source/window/layout.cxx b/vcl/source/window/layout.cxx index 975df2f3ed97..9f560d56a9fe 100644 --- a/vcl/source/window/layout.cxx +++ b/vcl/source/window/layout.cxx @@ -1340,10 +1340,21 @@ void VclFrame::setAllocation(const Size &rAllocation) setLayoutAllocation(*pChild, aChildPos, aAllocation); } +IMPL_LINK(VclFrame, WindowEventListener, VclSimpleEvent*, pEvent) +{ + if (pEvent && pEvent->GetId() == VCLEVENT_OBJECT_DYING) + designate_label(NULL); + return 0; +} + void VclFrame::designate_label(Window *pWindow) { - assert(pWindow->GetParent() == this); + assert(!pWindow || pWindow->GetParent() == this); + if (m_pLabel) + m_pLabel->RemoveEventListener(LINK(this, VclFrame, WindowEventListener)); m_pLabel = pWindow; + if (m_pLabel) + m_pLabel->AddEventListener(LINK(this, VclFrame, WindowEventListener)); } const Window *VclFrame::get_label_widget() const |