Printing update for Pango (GTK2 and X11-Unicode).

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

diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp
index 665e19c19a6d91ae52db5cc70facd489e49043b0..70d6b43e57e2248b8139291d361b85904750f375 100644 (file)
--- a/src/common/appcmn.cpp
+++ b/src/common/appcmn.cpp
@@ -32,6 +32,9 @@
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/list.h"
+    #if wxUSE_LOG
+        #include "wx/log.h"
+    #endif // wxUSE_LOG
     #if wxUSE_GUI
         #include "wx/msgdlg.h"
     #endif // wxUSE_GUI
@@ -42,6 +45,7 @@
 #include "wx/confbase.h"
 #include "wx/tokenzr.h"
 #include "wx/utils.h"
+#include "wx/msgout.h"
 
 #if wxUSE_GUI
     #include "wx/artprov.h"
@@ -83,8 +87,21 @@ wxAppBase::wxAppBase()
 #if wxUSE_GUI
     m_topWindow = (wxWindow *)NULL;
     m_useBestVisual = FALSE;
-    m_exitOnFrameDelete = TRUE;
     m_isActive = TRUE;
+
+    // We don't want to exit the app if the user code shows a dialog from its
+    // OnInit() -- but this is what would happen if we set m_exitOnFrameDelete
+    // to Yes initially as this dialog would be the last top level window.
+    // OTOH, if we set it to No initially we'll have to overwrite it with Yes
+    // when we enter our OnRun() because we do want the default behaviour from
+    // then on. But this would be a problem if the user code calls
+    // SetExitOnFrameDelete(FALSE) from OnInit().
+    //
+    // So we use the special "Later" value which is such that
+    // GetExitOnFrameDelete() returns FALSE for it but which we know we can
+    // safely (i.e. without losing the effect of the users SetExitOnFrameDelete
+    // call) overwrite in OnRun()
+    m_exitOnFrameDelete = Later;
 #endif // wxUSE_GUI
 
 #ifdef __WXDEBUG__
@@ -98,18 +115,30 @@ wxAppBase::~wxAppBase()
 }
 
 #if wxUSE_GUI
+
 bool wxAppBase::OnInitGui()
 {
 #ifdef __WXUNIVERSAL__
     if ( !wxTheme::Get() && !wxTheme::CreateDefault() )
         return FALSE;
-    wxArtProvider *art = wxTheme::Get()->GetArtProvider();
-    if ( art )
-        wxArtProvider::PushProvider(art);
 #endif // __WXUNIVERSAL__
 
     return TRUE;
 }
+
+int wxAppBase::OnRun()
+{
+    // see the comment in ctor: if the initial value hasn't been changed, use
+    // the default Yes from now on
+    if ( m_exitOnFrameDelete == Later )
+    {
+        m_exitOnFrameDelete = Yes;
+    }
+    //else: it has been changed, assume the user knows what he is doing
+
+    return MainLoop();
+}
+
 #endif // wxUSE_GUI
 
 int wxAppBase::OnExit()
@@ -124,9 +153,49 @@ int wxAppBase::OnExit()
     delete wxTheme::Set(NULL);
 #endif // __WXUNIVERSAL__
 
+    // use Set(NULL) and not Get() to avoid creating a message output object on
+    // demand when we just want to delete it
+    delete wxMessageOutput::Set(NULL);
+
     return 0;
 }
 
+// ----------------------------------------------------------------------------
+// customization hooks
+// ----------------------------------------------------------------------------
+
+#if wxUSE_LOG
+
+wxLog *wxAppBase::CreateLogTarget()
+{
+#if wxUSE_GUI && wxUSE_LOGGUI && !defined(__WXMICROWIN__)
+    return new wxLogGui;
+#else // !GUI
+    return new wxLogStderr;
+#endif // wxUSE_GUI
+}
+
+#endif // wxUSE_LOG
+
+wxMessageOutput *wxAppBase::CreateMessageOutput()
+{
+    // The standard way of printing help on command line arguments (app --help)
+    // is (according to common practice):
+    //     - console apps: to stderr (on any platform)
+    //     - GUI apps: stderr on Unix platforms (!)
+    //                 message box under Windows and others
+#if wxUSE_GUI && !defined(__UNIX__)
+    // wxMessageOutputMessageBox doesn't work under Motif
+    #ifdef __WXMOTIF__
+        return new wxMessageOutputLog;
+    #else
+        return new wxMessageOutputMessageBox;
+    #endif
+#else // !wxUSE_GUI || __UNIX__
+    return new wxMessageOutputStderr;
+#endif
+}
+
 // ---------------------------------------------------------------------------
 // wxAppBase
 // ----------------------------------------------------------------------------
@@ -143,10 +212,10 @@ void wxAppBase::ProcessPendingEvents()
     }
 
     // iterate until the list becomes empty
-    wxNode *node = wxPendingEvents->First();
+    wxNode *node = wxPendingEvents->GetFirst();
     while (node)
     {
-        wxEvtHandler *handler = (wxEvtHandler *)node->Data();
+        wxEvtHandler *handler = (wxEvtHandler *)node->GetData();
         delete node;
 
         // In ProcessPendingEvents(), new handlers might be add
@@ -155,7 +224,7 @@ void wxAppBase::ProcessPendingEvents()
         handler->ProcessPendingEvents();
         wxENTER_CRIT_SECT( *wxPendingEventsLocker );
 
-        node = wxPendingEvents->First();
+        node = wxPendingEvents->GetFirst();
     }
 
     wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
@@ -313,6 +382,8 @@ bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser)
             return FALSE;
         }
 
+        // Delete the defaultly created theme and set the new theme.
+        delete wxTheme::Get();
         wxTheme::Set(theme);
     }
 #endif // __WXUNIVERSAL__
@@ -374,8 +445,23 @@ bool wxAppBase::CheckBuildOptions(const wxBuildOptions& opts)
 
     if ( !(wxCMP(isDebug) && wxCMP(verMaj) && wxCMP(verMin)) )
     {
-        wxLogFatalError(_T("Mismatch between the program and library build ")
-                        _T("versions detected."));
+        wxString msg;
+        wxString libDebug, progDebug;
+
+        if (isDebug)
+            libDebug = wxT("debug");
+        else
+            libDebug = wxT("no debug");
+
+        if (opts.m_isDebug)
+            progDebug = wxT("debug");
+        else
+            progDebug = wxT("no debug");
+        
+        msg.Printf(_T("Mismatch between the program and library build versions detected.\nThe library used %d.%d (%s), and your program used %d.%d (%s)."),
+                   verMaj, verMin, libDebug.c_str(), opts.m_verMaj, opts.m_verMin, progDebug.c_str());
+        
+        wxLogFatalError(msg);
 
         // normally wxLogFatalError doesn't return
         return FALSE;
@@ -389,6 +475,7 @@ bool wxAppBase::CheckBuildOptions(const wxBuildOptions& opts)
 
 static void LINKAGEMODE SetTraceMasks()
 {
+#if wxUSE_LOG
     wxString mask;
     if ( wxGetEnv(wxT("WXTRACE"), &mask) )
     {
@@ -396,6 +483,7 @@ static void LINKAGEMODE SetTraceMasks()
         while ( tkn.HasMoreTokens() )
             wxLog::AddTraceMask(tkn.GetNextToken());
     }
+#endif // wxUSE_LOG
 }
 
 // wxASSERT() helper
@@ -422,6 +510,17 @@ void wxTrap()
 #endif // Win/Unix
 }
 
+
+void wxAssert(int cond,
+                  const wxChar *szFile,
+                  int nLine,
+                  const wxChar *szCond,
+                  const wxChar *szMsg) 
+{
+   if ( !cond )
+          wxOnAssert(szFile, nLine, szCond, szMsg);
+}
+  
 // show the assert modal dialog
 static
 void ShowAssertDialog(const wxChar *szFile,