X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/049908c57372c671516be6f1a853d35761327e81..77c8efc8c37da6d6a5e2e8022d21d1cd7d76371d:/src/common/toplvcmn.cpp diff --git a/src/common/toplvcmn.cpp b/src/common/toplvcmn.cpp index 77cbec0582..e93cdc024f 100644 --- a/src/common/toplvcmn.cpp +++ b/src/common/toplvcmn.cpp @@ -39,12 +39,8 @@ 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 // ============================================================================ @@ -59,22 +55,44 @@ 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() { - m_winDefault = m_winTmpDefault = NULL; - // don't let wxTheApp keep any stale pointers to us if ( wxTheApp && wxTheApp->GetTopWindow() == this ) wxTheApp->SetTopWindow(NULL); 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 @@ -89,15 +107,26 @@ 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; @@ -116,7 +145,7 @@ 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 @@ -128,7 +157,7 @@ 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 @@ -168,7 +197,7 @@ 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; @@ -184,7 +213,7 @@ wxSize wxTopLevelWindowBase::GetDefaultSize() size.y *= 2; size.y /= 3; } - +#endif return size; } @@ -192,7 +221,10 @@ 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 @@ -214,27 +246,24 @@ 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 @@ -318,7 +347,7 @@ void wxTopLevelWindowBase::SetIcon(const wxIcon& icon) // passing wxNullIcon to SetIcon() is possible (it means that we shouldn't // have any icon), but adding an invalid icon to wxIconBundle is not wxIconBundle icons; - if ( icon.Ok() ) + if ( icon.IsOk() ) icons.AddIcon(icon); SetIcons(icons); @@ -332,6 +361,14 @@ void wxTopLevelWindowBase::SetIcon(const wxIcon& icon) // whole client area void wxTopLevelWindowBase::DoLayout() { + // We are called during the window destruction several times, e.g. as + // wxFrame tries to adjust to its tool/status bars disappearing. But + // actually doing the layout is pretty useless in this case as the window + // will disappear anyhow -- so just don't bother. + if ( IsBeingDeleted() ) + return; + + // if we're using constraints or sizers - do use them if ( GetAutoLayout() ) { @@ -340,7 +377,7 @@ 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() ) @@ -379,17 +416,6 @@ 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);