X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4745f3c6ae5921a7f4242c479f60dc9a26347b7e..ede7b01760e920b31520b15c919445db882a8012:/src/common/toplvcmn.cpp diff --git a/src/common/toplvcmn.cpp b/src/common/toplvcmn.cpp index 428c54dac5..ceee633abf 100644 --- a/src/common/toplvcmn.cpp +++ b/src/common/toplvcmn.cpp @@ -39,9 +39,11 @@ BEGIN_EVENT_TABLE(wxTopLevelWindowBase, wxWindow) EVT_CLOSE(wxTopLevelWindowBase::OnCloseWindow) EVT_SIZE(wxTopLevelWindowBase::OnSize) - EVT_WINDOW_DESTROY(wxTopLevelWindowBase::OnChildDestroy) + WX_EVENT_TABLE_CONTROL_CONTAINER(wxTopLevelWindowBase) END_EVENT_TABLE() +WX_DELEGATE_TO_CONTROL_CONTAINER(wxTopLevelWindowBase, wxWindow) + // ============================================================================ // implementation // ============================================================================ @@ -56,8 +58,8 @@ wxTopLevelWindowBase::wxTopLevelWindowBase() { // Unlike windows, top level windows are created hidden by default. m_isShown = false; - m_winDefault = NULL; - m_winTmpDefault = NULL; + + WX_INIT_CONTROL_CONTAINER(); } wxTopLevelWindowBase::~wxTopLevelWindowBase() @@ -68,6 +70,34 @@ wxTopLevelWindowBase::~wxTopLevelWindowBase() wxTopLevelWindows.DeleteObject(this); + // delete any our top level children which are still pending for deletion + // immediately: this could happen if a child (e.g. a temporary dialog + // created with this window as parent) was Destroy()'d) while this window + // was deleted directly (with delete, or maybe just because it was created + // on the stack) immediately afterwards and before the child TLW was really + // destroyed -- not destroying it now would leave it alive with a dangling + // parent pointer and result in a crash later + for ( wxObjectList::iterator i = wxPendingDelete.begin(); + i != wxPendingDelete.end(); + ) + { + wxWindow * const win = wxDynamicCast(*i, wxWindow); + if ( win && win->GetParent() == this ) + { + wxPendingDelete.erase(i); + + delete win; + + // deleting it invalidated the list (and not only one node because + // it could have resulted in deletion of other objects to) + i = wxPendingDelete.begin(); + } + else + { + ++i; + } + } + if ( IsLastBeforeExit() ) { // no other (important) windows left, quit the app @@ -82,15 +112,26 @@ bool wxTopLevelWindowBase::Destroy() if ( !wxPendingDelete.Member(this) ) wxPendingDelete.Append(this); - if (wxTopLevelWindows.GetCount() > 1) + // normally we want to hide the window immediately so that it doesn't get + // stuck on the screen while it's being destroyed, however we shouldn't + // hide the last visible window as then we might not get any idle events + // any more as no events will be sent to the hidden window and without idle + // events we won't prune wxPendingDelete list and the application won't + // terminate + for ( wxWindowList::const_iterator i = wxTopLevelWindows.begin(), + end = wxTopLevelWindows.end(); + i != end; + ++i ) { - // Hide it immediately. This should - // not be done if this TLW is the - // only one left since we then would - // risk not to get any idle events - // at all anymore during which we - // could delete any pending events. - Hide(); + wxTopLevelWindow * const win = static_cast(*i); + if ( win != this && win->IsShown() ) + { + // there remains at least one other visible TLW, we can hide this + // one + Hide(); + + break; + } } return true; @@ -109,7 +150,7 @@ bool wxTopLevelWindowBase::IsLastBeforeExit() const // then decide whether we should exit at all for ( i = wxTopLevelWindows.begin(); i != end; ++i ) { - wxTopLevelWindow * const win = wx_static_cast(wxTopLevelWindow *, *i); + wxTopLevelWindow * const win = static_cast(*i); if ( win->ShouldPreventAppExit() ) { // there remains at least one important TLW, don't exit @@ -121,7 +162,7 @@ bool wxTopLevelWindowBase::IsLastBeforeExit() const for ( i = wxTopLevelWindows.begin(); i != end; ++i ) { // don't close twice the windows which are already marked for deletion - wxTopLevelWindow * const win = wx_static_cast(wxTopLevelWindow *, *i); + wxTopLevelWindow * const win = static_cast(*i); if ( !wxPendingDelete.Member(win) && !win->Close() ) { // one of the windows refused to close, don't exit @@ -143,29 +184,12 @@ bool wxTopLevelWindowBase::IsLastBeforeExit() const void wxTopLevelWindowBase::SetMinSize(const wxSize& minSize) { - SetSizeHints( minSize.x, minSize.y, GetMaxWidth(), GetMaxHeight() ); + SetSizeHints(minSize, GetMaxSize()); } void wxTopLevelWindowBase::SetMaxSize(const wxSize& maxSize) { - SetSizeHints( GetMinWidth(), GetMinHeight(), maxSize.x, maxSize.y ); -} - -// set the min/max size of the window -void wxTopLevelWindowBase::DoSetSizeHints(int minW, int minH, - int maxW, int maxH, - int WXUNUSED(incW), int WXUNUSED(incH)) -{ - // setting min width greater than max width leads to infinite loops under - // X11 and generally doesn't make any sense, so don't allow it - wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) && - (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH), - _T("min width/height must be less than max width/height!") ); - - m_minWidth = minW; - m_maxWidth = maxW; - m_minHeight = minH; - m_maxHeight = maxH; + SetSizeHints(GetMinSize(), maxSize); } void wxTopLevelWindowBase::GetRectForTopLevelChildren(int *x, int *y, int *w, int *h) @@ -178,7 +202,7 @@ void wxTopLevelWindowBase::GetRectForTopLevelChildren(int *x, int *y, int *w, in wxSize wxTopLevelWindowBase::GetDefaultSize() { wxSize size = wxGetClientDisplayRect().GetSize(); - +#ifndef __WXOSX_IPHONE__ // create proportionally bigger windows on small screens if ( size.x >= 1024 ) size.x = 400; @@ -194,7 +218,7 @@ wxSize wxTopLevelWindowBase::GetDefaultSize() size.y *= 2; size.y /= 3; } - +#endif return size; } @@ -202,7 +226,10 @@ void wxTopLevelWindowBase::DoCentre(int dir) { // on some platforms centering top level windows is impossible // because they are always maximized by guidelines or limitations - if(IsAlwaysMaximized()) + // + // and centering a maximized window doesn't make sense as its position + // can't change + if ( IsAlwaysMaximized() || IsMaximized() ) return; // we need the display rect anyhow so store it first: notice that we should @@ -224,27 +251,24 @@ void wxTopLevelWindowBase::DoCentre(int dir) // parent frame under Mac but could happen elsewhere too if the frame // was hidden/moved away for some reason), don't use it as otherwise // this window wouldn't be visible at all - if ( !rectDisplay.Contains(rectParent.GetTopLeft()) && - !rectParent.Contains(rectParent.GetBottomRight()) ) + if ( !rectParent.Intersects(rectDisplay) ) { - // this is enough to make IsEmpty() test below pass - rectParent.width = 0; + // just centre on screen then + rectParent = rectDisplay; } } - - if ( rectParent.IsEmpty() ) + else { // we were explicitly asked to centre this window on the entire screen // or if we have no parent anyhow and so can't centre on it rectParent = rectDisplay; } - // centering maximized window on screen is no-op - if((rectParent == rectDisplay) && IsMaximized()) - return; + if ( !(dir & wxBOTH) ) + dir |= wxBOTH; // if neither is specified, center in both directions // the new window rect candidate - wxRect rect = GetRect().CentreIn(rectParent, dir); + wxRect rect = GetRect().CentreIn(rectParent, dir & ~wxCENTRE_ON_SCREEN); // we don't want to place the window off screen if Centre() is called as // this is (almost?) never wanted and it would be very difficult to prevent @@ -350,7 +374,7 @@ void wxTopLevelWindowBase::DoLayout() else { // do we have _exactly_ one child? - wxWindow *child = (wxWindow *)NULL; + wxWindow *child = NULL; for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); node; node = node->GetNext() ) @@ -389,17 +413,6 @@ void wxTopLevelWindowBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) Destroy(); } -void wxTopLevelWindowBase::OnChildDestroy(wxWindowDestroyEvent& event) -{ - event.Skip(); - - wxWindow * const win = event.GetWindow(); - if ( win == m_winDefault ) - m_winDefault = NULL; - if ( win == m_winTmpDefault ) - m_winTmpDefault = NULL; -} - bool wxTopLevelWindowBase::SendIconizeEvent(bool iconized) { wxIconizeEvent event(GetId(), iconized); @@ -429,14 +442,3 @@ void wxTopLevelWindowBase::RequestUserAttention(int WXUNUSED(flags)) // it's probably better than do nothing, isn't it? Raise(); } - -void wxTopLevelWindowBase::RemoveChild(wxWindowBase *child) -{ - if ( child == m_winDefault ) - m_winDefault = NULL; - - if ( child == m_winTmpDefault ) - m_winTmpDefault = NULL; - - wxWindow::RemoveChild(child); -}