void wxMDIChildFrame::MSWDestroyWindow()
{
invalidHandle = GetHwnd();
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
// Must make sure this handle is invalidated (set to NULL) since all sorts
// of things could happen after the child client is destroyed, but before
// the wxFrame is destroyed.
HWND oldHandle = (HWND)GetHWND();
SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY,
(WPARAM)oldHandle, 0);
if (parent->GetActiveChild() == (wxMDIChildFrame*) NULL)
ResetWindowStyle((void*) NULL);
invalidHandle = 0;
if (m_hMenu)
{
::DestroyMenu((HMENU) m_hMenu);
m_hMenu = 0;
}
wxRemoveHandleAssociation(this);
m_hWnd = 0;
}
bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
{
WINDOWPOS *lpPos = (WINDOWPOS *)pos;
#if defined(__WIN95__)
if (!(lpPos->flags & SWP_NOSIZE))
{
RECT rectClient;
DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
{
::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
lpPos->x = rectClient.left;
lpPos->y = rectClient.top;
lpPos->cx = rectClient.right - rectClient.left;
lpPos->cy = rectClient.bottom - rectClient.top;
}
#if wxUSE_TOOLBAR
wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown())
{
pFrameWnd->GetToolBar()->Refresh();
}
#endif
}
#endif // Win95
return false;
}
bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
WXHWND hwndAct,
WXHWND hwndDeact)
{
wxMDIParentFrame * const parent = GetMDIParent();
WXHMENU hMenuToSet = 0;
bool activated;
if ( m_hWnd == hwndAct )
{
activated = true;
parent->SetActiveChild(this);
WXHMENU hMenuChild = m_hMenu;
if ( hMenuChild )
hMenuToSet = hMenuChild;
}
else if ( m_hWnd == hwndDeact )
{
wxASSERT_MSG( parent->GetActiveChild() == this,
wxT("can't deactivate MDI child which wasn't active!") );
activated = false;
parent->SetActiveChild(NULL);
WXHMENU hMenuParent = parent->m_hMenu;
// activate the the parent menu only when there is no other child
// that has been activated
if ( hMenuParent && !hwndAct )
hMenuToSet = hMenuParent;
}
else
{
// we have nothing to do with it
return false;
}
if ( hMenuToSet )
{
MDISetMenu(parent->GetClientWindow(),
(HMENU)hMenuToSet, GetMDIWindowMenu(parent));
}
wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
event.SetEventObject( this );
ResetWindowStyle(NULL);
return HandleWindowEvent(event);
}
bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
{
WINDOWPOS *lpPos = (WINDOWPOS *)pos;
if (!(lpPos->flags & SWP_NOSIZE))
{
RECT rectClient;
DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
{
::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
lpPos->x = rectClient.left;
lpPos->y = rectClient.top;
lpPos->cx = rectClient.right - rectClient.left;
lpPos->cy = rectClient.bottom - rectClient.top;
}
}
return false;
}
bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
WXHWND hwndAct,
WXHWND hwndDeact)
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
HMENU menuToSet = 0;
bool activated;
if ( m_hWnd == hwndAct )
{
activated = true;
parent->m_currentChild = this;
HMENU child_menu = (HMENU)GetWinMenu();
if ( child_menu )
{
parent->m_parentFrameActive = false;
menuToSet = child_menu;
}
}
else if ( m_hWnd == hwndDeact )
{
wxASSERT_MSG( parent->m_currentChild == this,
wxT("can't deactivate MDI child which wasn't active!") );
activated = false;
parent->m_currentChild = NULL;
HMENU parent_menu = (HMENU)parent->GetWinMenu();
// activate the the parent menu only when there is no other child
// that has been activated
if ( parent_menu && !hwndAct )
{
parent->m_parentFrameActive = true;
menuToSet = parent_menu;
}
}
else
{
// we have nothing to do with it
return false;
}
if ( menuToSet )
{
MDISetMenu(parent->GetClientWindow(),
menuToSet, GetMDIWindowMenu(parent));
}
wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
event.SetEventObject( this );
ResetWindowStyle((void *)NULL);
return GetEventHandler()->ProcessEvent(event);
}
