corrected signed/unsigned comparison warnings

[wxWidgets.git] / src / common / toplvcmn.cpp

diff --git a/src/common/toplvcmn.cpp b/src/common/toplvcmn.cpp
index d99000e5e24428c455252cf89662b60bddfeca28..60376d3ebcb84e678230fd2e034a8efdb00a881e 100644 (file)
--- a/src/common/toplvcmn.cpp
+++ b/src/common/toplvcmn.cpp
@@ -23,8 +23,9 @@
     #pragma hdrstop
 #endif
 
+#include "wx/toplevel.h"
+
 #ifndef WX_PRECOMP
-    #include "wx/toplevel.h"
     #include "wx/dcclient.h"
     #include "wx/app.h"
 #endif // WX_PRECOMP
@@ -54,6 +55,8 @@ wxTopLevelWindowBase::wxTopLevelWindowBase()
 {
     // Unlike windows, top level windows are created hidden by default.
     m_isShown = false;
+    m_winDefault = NULL;
+    m_winTmpDefault = NULL;
 }
 
 wxTopLevelWindowBase::~wxTopLevelWindowBase()
@@ -62,13 +65,11 @@ wxTopLevelWindowBase::~wxTopLevelWindowBase()
     if ( wxTheApp && wxTheApp->GetTopWindow() == this )
         wxTheApp->SetTopWindow(NULL);
 
-    bool shouldExit = IsLastBeforeExit();
-
     wxTopLevelWindows.DeleteObject(this);
 
-    if ( shouldExit )
+    if ( IsLastBeforeExit() )
     {
-        // then do it
+        // no other (important) windows left, quit the app
         wxTheApp->ExitMainLoop();
     }
 }
@@ -96,11 +97,43 @@ bool wxTopLevelWindowBase::Destroy()
 
 bool wxTopLevelWindowBase::IsLastBeforeExit() const
 {
-    // we exit the application if there are no more top level windows left
-    // normally but wxApp can prevent this from happening
-    return wxTopLevelWindows.GetCount() == 1 &&
-            wxTopLevelWindows.GetFirst()->GetData() == (wxWindow *)this &&
-            wxTheApp && wxTheApp->GetExitOnFrameDelete();
+    // first of all, automatically exiting the app on last window close can be
+    // completely disabled at wxTheApp level
+    if ( !wxTheApp || !wxTheApp->GetExitOnFrameDelete() )
+        return false;
+
+    wxWindowList::const_iterator i;
+    const wxWindowList::const_iterator end = wxTopLevelWindows.end();
+
+    // then decide whether we should exit at all
+    for ( i = wxTopLevelWindows.begin(); i != end; ++i )
+    {
+        wxTopLevelWindow * const win = wx_static_cast(wxTopLevelWindow *, *i);
+        if ( win->ShouldPreventAppExit() )
+        {
+            // there remains at least one important TLW, don't exit
+            return false;
+        }
+    }
+
+    // if yes, close all the other windows: this could still fail
+    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);
+        if ( !wxPendingDelete.Member(win) && !win->Close() )
+        {
+            // one of the windows refused to close, don't exit
+            //
+            // NB: of course, by now some other windows could have been already
+            //     closed but there is really nothing we can do about it as we
+            //     have no way just to ask the window if it can close without
+            //     forcing it to do it
+            return false;
+        }
+    }
+
+    return true;
 }
 
 // ----------------------------------------------------------------------------
@@ -155,6 +188,11 @@ wxSize wxTopLevelWindowBase::GetDefaultSize()
 
 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())
+        return;
+
     // we need the display rect anyhow so store it first
     int nDisplay = wxDisplay::GetFromWindow(this);
     wxDisplay dpy(nDisplay == wxNOT_FOUND ? 0 : nDisplay);
@@ -256,6 +294,14 @@ void wxTopLevelWindowBase::DoClientToScreen(int *x, int *y) const
     wxWindow::DoClientToScreen(x, y);
 }
 
+bool wxTopLevelWindowBase::IsAlwaysMaximized() const
+{
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+    return true;
+#else
+    return false;
+#endif
+}
 
 // ----------------------------------------------------------------------------
 // event handlers
@@ -295,7 +341,7 @@ void wxTopLevelWindowBase::DoLayout()
         }
 
         // do we have any children at all?
-        if ( child )
+        if ( child && child->IsShown() )
         {
             // exactly one child - set it's size to fill the whole frame
             int clientW, clientH;
@@ -349,3 +395,14 @@ 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);
+}