implemented fallback for AlphaBlend() for the systems not supporting it

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

diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp
index fec6879ea6336c67bc1bbb519a75eff6ea584d73..25bda2572b28e387b86e76ed21dd6975ba0d7071 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
@@ -118,9 +121,6 @@ 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;
@@ -153,9 +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
 // ----------------------------------------------------------------------------
@@ -172,10 +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
@@ -184,7 +224,7 @@ void wxAppBase::ProcessPendingEvents()
         handler->ProcessPendingEvents();
         wxENTER_CRIT_SECT( *wxPendingEventsLocker );
 
-        node = wxPendingEvents->First();
+        node = wxPendingEvents->GetFirst();
     }
 
     wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
@@ -217,34 +257,12 @@ int wxAppBase::FilterEvent(wxEvent& WXUNUSED(event))
     return -1;
 }
 
-void wxAppBase::DoInit()
-{
-    if (wxMessageOutput::Get())
-        return;
-        
-    // NB: 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__)
-    #ifdef __WXMOTIF__
-    wxMessageOutput::Set(new wxMessageOutputLog);
-    #else
-    wxMessageOutput::Set(new wxMessageOutputMessageBox);
-    #endif
-#else
-    wxMessageOutput::Set(new wxMessageOutputStderr);
-#endif
-}
-
 // ----------------------------------------------------------------------------
 // cmd line parsing
 // ----------------------------------------------------------------------------
 
 bool wxAppBase::OnInit()
 {
-    DoInit();
 #if wxUSE_CMDLINE_PARSER
     wxCmdLineParser parser(argc, argv);
 
@@ -360,10 +378,11 @@ bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser)
         if ( !theme )
         {
             wxLogError(_("Unsupported theme '%s'."), themeName.c_str());
-
             return FALSE;
         }
 
+        // Delete the defaultly created theme and set the new theme.
+        delete wxTheme::Get();
         wxTheme::Set(theme);
     }
 #endif // __WXUNIVERSAL__
@@ -376,7 +395,6 @@ bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser)
         if ( wxSscanf(modeDesc.c_str(), _T("%ux%u-%u"), &w, &h, &bpp) != 3 )
         {
             wxLogError(_("Invalid display mode specification '%s'."), modeDesc.c_str());
-
             return FALSE;
         }
 
@@ -425,8 +443,23 @@ 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;
@@ -440,6 +473,7 @@ bool wxAppBase::CheckBuildOptions(const wxBuildOptions& opts)
 
 static void LINKAGEMODE SetTraceMasks()
 {
+#if wxUSE_LOG
     wxString mask;
     if ( wxGetEnv(wxT("WXTRACE"), &mask) )
     {
@@ -447,6 +481,7 @@ static void LINKAGEMODE SetTraceMasks()
         while ( tkn.HasMoreTokens() )
             wxLog::AddTraceMask(tkn.GetNextToken());
     }
+#endif // wxUSE_LOG
 }
 
 // wxASSERT() helper
@@ -473,6 +508,17 @@ 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,
@@ -502,6 +548,24 @@ void ShowAssertDialog(const wxChar *szFile,
         wxStrcat(szBuf, wxT("."));
     }
 
+#if wxUSE_THREADS
+    // if we are not in the main thread,
+    // output the assert directly and trap since dialogs cannot be displayed
+    if (!wxThread::IsMain()) {
+        wxStrcat(szBuf, wxT(" [in child thread]"));
+#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
+        wxStrcat(szBuf, wxT("\r\n"));
+        OutputDebugString(szBuf);
+#else
+        // send to stderr
+        wxFprintf(stderr, wxT("%s\n"), szBuf);
+        fflush(stderr);
+#endif
+        // He-e-e-e-elp!! we're asserting in a child thread
+        wxTrap();
+    }
+#endif // wxUSE_THREADS
+
     if ( !s_bNoAsserts )
     {
         // send it to the normal log destination