added init.cpp

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

diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp
index 37b04e0e86b3a7cc4a113129ef435f28c134703e..78ede412b947a79f9c5afb3f69bb577e3085e26c 100644 (file)
--- a/src/common/appcmn.cpp
+++ b/src/common/appcmn.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        common/appcmn.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        common/appcmn.cpp

-// Purpose:     wxAppBase methods common to all platforms
+// Purpose:     wxAppConsole and wxAppBase methods common to all platforms

 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     18.10.99
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     18.10.99


@@ -32,113 +32,145 @@
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/list.h"
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/list.h"

-    #if wxUSE_GUI
-        #include "wx/msgdlg.h"
-    #endif // wxUSE_GUI
+    #include "wx/log.h"
+    #include "wx/msgdlg.h"

 #endif
 
 #endif
 

-#include "wx/cmdline.h"
+#include "wx/apptrait.h"
+#if wxUSE_FONTMAP
+    #include "wx/fontmap.h"
+#endif // wxUSE_FONTMAP
+#include "wx/msgout.h"

 #include "wx/thread.h"
 #include "wx/thread.h"

-#include "wx/confbase.h"
+#include "wx/utils.h"

 
 

-#if !defined(__WXMSW__) || defined(__WXMICROWIN__)
-  #include  <signal.h>      // for SIGTRAP used by wxTrap()
-#endif  //Win/Unix
-
-#if defined(__WXMSW__)
-  #include  "wx/msw/private.h"  // includes windows.h for MessageBox()
-#endif
-
-// ===========================================================================
-// implementation
-// ===========================================================================
+// ============================================================================
+// wxAppBase implementation
+// ============================================================================

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// initialization and termination
+// initialization

 // ----------------------------------------------------------------------------
 
 wxAppBase::wxAppBase()
 {
 // ----------------------------------------------------------------------------
 
 wxAppBase::wxAppBase()
 {

-    wxTheApp = (wxApp *)this;
-
-    // VZ: what's this? is it obsolete?
-    m_wantDebugOutput = FALSE;
-
-#if wxUSE_GUI

     m_topWindow = (wxWindow *)NULL;
     m_useBestVisual = FALSE;
     m_topWindow = (wxWindow *)NULL;
     m_useBestVisual = FALSE;

-    m_exitOnFrameDelete = TRUE;

     m_isActive = TRUE;
     m_isActive = TRUE;

-#endif // wxUSE_GUI
+
+    // 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;

 }
 
 }
 

-#if wxUSE_GUI
-bool wxAppBase::OnInitGui()
+bool wxAppBase::Initialize(int& argc, wxChar **argv)

 {
 {

-#ifdef __WXUNIVERSAL__
-    if ( !wxTheme::Get() && !wxTheme::CreateDefault() )
-        return FALSE;
-#endif // __WXUNIVERSAL__
+    if ( !wxAppConsole::Initialize(argc, argv) )
+        return false;

 
 

-    return TRUE;
+#if wxUSE_THREADS
+    wxPendingEventsLocker = new wxCriticalSection;
+#endif
+
+    wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
+    wxTheColourDatabase->Initialize();
+
+    wxInitializeStockLists();
+    wxInitializeStockObjects();
+
+    wxBitmap::InitStandardHandlers();
+
+    return true;

 }
 }

-#endif // wxUSE_GUI

 
 

-int wxAppBase::OnExit()
+// ----------------------------------------------------------------------------
+// cleanup
+// ----------------------------------------------------------------------------
+
+wxAppBase::~wxAppBase()

 {
 {

-#if wxUSE_CONFIG
-    // delete the config object if any (don't use Get() here, but Set()
-    // because Get() could create a new config object)
-    delete wxConfigBase::Set((wxConfigBase *) NULL);
-#endif // wxUSE_CONFIG
+    // this destructor is required for Darwin
+}

 
 

-#ifdef __WXUNIVERSAL__
-    delete wxTheme::Set(NULL);
-#endif // __WXUNIVERSAL__
+void wxAppBase::CleanUp()
+{
+    // one last chance for pending objects to be cleaned up
+    DeletePendingObjects();

 
 

-    return 0;
+    wxBitmap::CleanUpHandlers();
+
+    wxDeleteStockObjects();
+
+    wxDeleteStockLists();
+
+    delete wxTheColourDatabase;
+    wxTheColourDatabase = NULL;
+
+#if wxUSE_THREADS
+    delete wxPendingEvents;
+    wxPendingEvents = NULL;
+
+    delete wxPendingEventsLocker;
+    wxPendingEventsLocker = NULL;
+
+#if wxUSE_VALIDATORS
+    // If we don't do the following, we get an apparent memory leak.
+    ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker();
+#endif // wxUSE_VALIDATORS
+#endif // wxUSE_THREADS

 }
 
 }
 

-// ---------------------------------------------------------------------------
-// wxAppBase
+// ----------------------------------------------------------------------------
+// OnXXX() hooks

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-void wxAppBase::ProcessPendingEvents()
+bool wxAppBase::OnInitGui()

 {
 {

-    // ensure that we're the only thread to modify the pending events list
-    wxENTER_CRIT_SECT( *wxPendingEventsLocker );
+#ifdef __WXUNIVERSAL__
+    if ( !wxTheme::Get() && !wxTheme::CreateDefault() )
+        return FALSE;
+#endif // __WXUNIVERSAL__

 
 

-    if ( !wxPendingEvents )
-    {
-        wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
-        return;
-    }
+    return TRUE;
+}

 
 

-    // iterate until the list becomes empty
-    wxNode *node = wxPendingEvents->First();
-    while (node)
+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 )

     {
     {

-        wxEvtHandler *handler = (wxEvtHandler *)node->Data();
-        delete node;
+        m_exitOnFrameDelete = Yes;
+    }
+    //else: it has been changed, assume the user knows what he is doing

 
 

-        // In ProcessPendingEvents(), new handlers might be add
-        // and we can safely leave the critical section here.
-        wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
-        handler->ProcessPendingEvents();
-        wxENTER_CRIT_SECT( *wxPendingEventsLocker );
+    return MainLoop();
+}

 
 

-        node = wxPendingEvents->First();
-    }
+void wxAppBase::Exit()
+{
+    ExitMainLoop();
+}

 
 

-    wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
+wxAppTraits *wxAppBase::CreateTraits()
+{
+    return wxAppTraits::CreateGUI();

 }
 
 // ----------------------------------------------------------------------------
 // misc
 // ----------------------------------------------------------------------------
 
 }
 
 // ----------------------------------------------------------------------------
 // misc
 // ----------------------------------------------------------------------------
 

-#if wxUSE_GUI
-

 void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus))
 {
     if ( active == m_isActive )
 void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus))
 {
     if ( active == m_isActive )


@@ -152,306 +184,130 @@ void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus))
     (void)ProcessEvent(event);
 }
 
     (void)ProcessEvent(event);
 }
 

-#endif // wxUSE_GUI
-
-// ----------------------------------------------------------------------------
-// cmd line parsing
-// ----------------------------------------------------------------------------
-
-bool wxAppBase::OnInit()
+void wxAppBase::DeletePendingObjects()

 {
 {

-#if wxUSE_CMDLINE_PARSER
-    wxCmdLineParser parser(argc, argv);
-
-    OnInitCmdLine(parser);
-
-    bool cont;
-    switch ( parser.Parse() )
+    wxNode *node = wxPendingDelete.GetFirst();
+    while (node)

     {
     {

-        case -1:
-            cont = OnCmdLineHelp(parser);
-            break;
-
-        case 0:
-            cont = OnCmdLineParsed(parser);
-            break;
+        wxObject *obj = node->GetData();

 
 

-        default:
-            cont = OnCmdLineError(parser);
-            break;
-    }
+        delete obj;

 
 

-    if ( !cont )
-        return FALSE;
-#endif // wxUSE_CMDLINE_PARSER
+        if (wxPendingDelete.Member(obj))
+            delete node;

 
 

-    return TRUE;
+        // Deleting one object may have deleted other pending
+        // objects, so start from beginning of list again.
+        node = wxPendingDelete.GetFirst();
+    }

 }
 
 }
 

-#if wxUSE_CMDLINE_PARSER
+// ----------------------------------------------------------------------------
+// wxGUIAppTraitsBase
+// ----------------------------------------------------------------------------

 
 

-#define OPTION_VERBOSE _T("verbose")
-#define OPTION_THEME   _T("theme")
-#define OPTION_MODE    _T("mode")
+#if wxUSE_LOG

 
 

-void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser)
+wxLog *wxGUIAppTraitsBase::CreateLogTarget()

 {
 {

-    // the standard command line options
-    static const wxCmdLineEntryDesc cmdLineDesc[] =
-    {
-        {
-            wxCMD_LINE_SWITCH,
-            _T("h"),
-            _T("help"),
-            gettext_noop("show this help message"),
-            wxCMD_LINE_VAL_NONE,
-            wxCMD_LINE_OPTION_HELP
-        },
+    return new wxLogGui;
+}

 
 

-#if wxUSE_LOG
-        {
-            wxCMD_LINE_SWITCH,
-            _T(""),
-            OPTION_VERBOSE,
-            gettext_noop("generate verbose log messages")
-        },

 #endif // wxUSE_LOG
 
 #endif // wxUSE_LOG
 

-#ifdef __WXUNIVERSAL__
-        {
-            wxCMD_LINE_OPTION,
-            _T(""),
-            OPTION_THEME,
-            gettext_noop("specify the theme to use"),
-            wxCMD_LINE_VAL_STRING
-        },
-#endif // __WXUNIVERSAL__
-
-#if defined(__WXMGL__)
-        // VS: this is not specific to wxMGL, all fullscreen (framebuffer) ports
-        //     should provide this option. That's why it is in common/appcmn.cpp
-        //     and not mgl/app.cpp
-        {
-            wxCMD_LINE_OPTION,
-            _T(""),
-            OPTION_MODE,
-            gettext_noop("specify display mode to use (e.g. 640x480-16)"),
-            wxCMD_LINE_VAL_STRING
-        },
-#endif // __WXMGL__
-
-        // terminator
-        { wxCMD_LINE_NONE }
-    };
-
-    parser.SetDesc(cmdLineDesc);
+wxMessageOutput *wxGUIAppTraitsBase::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
+#ifdef __UNIX__
+    return new wxMessageOutputStderr;
+#else // !__UNIX__
+    // wxMessageOutputMessageBox doesn't work under Motif
+    #ifdef __WXMOTIF__
+        return new wxMessageOutputLog;
+    #else
+        return new wxMessageOutputMessageBox;
+    #endif
+#endif // __UNIX__/!__UNIX__

 }
 
 }
 

-bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser)
-{
-#if wxUSE_LOG
-    if ( parser.Found(OPTION_VERBOSE) )
-    {
-        wxLog::SetVerbose(TRUE);
-    }
-#endif // wxUSE_LOG
+#if wxUSE_FONTMAP

 
 

-#ifdef __WXUNIVERSAL__
-    wxString themeName;
-    if ( parser.Found(OPTION_THEME, &themeName) )
-    {
-        wxTheme *theme = wxTheme::Create(themeName);
-        if ( !theme )
-        {
-            wxLogError(_("Unsupported theme '%s'."), themeName.c_str());
+wxFontMapper *wxGUIAppTraitsBase::CreateFontMapper()
+{
+    return new wxFontMapper;
+}

 
 

-            return FALSE;
-        }
+#endif // wxUSE_FONTMAP

 
 

-        wxTheme::Set(theme);
-    }
-#endif // __WXUNIVERSAL__
+#ifdef __WXDEBUG__

 
 

-#if defined(__WXMGL__)
-    wxString modeDesc;
-    if ( parser.Found(OPTION_MODE, &modeDesc) )
+bool wxGUIAppTraitsBase::ShowAssertDialog(const wxString& msg)
+{
+    // under MSW we prefer to use the base class version using ::MessageBox()
+    // even if wxMessageBox() is available because it has less chances to
+    // double fault our app than our wxMessageBox()
+#if defined(__WXMSW__) || !wxUSE_MSGDLG
+    return wxAppTraitsBase::ShowAssertDialog(msg);
+#else // wxUSE_MSGDLG
+    // this message is intentionally not translated -- it is for
+    // developpers only
+    wxString msgDlg(msg);
+    msgDlg += wxT("\nDo you want to stop the program?\n")
+              wxT("You can also choose [Cancel] to suppress ")
+              wxT("further warnings.");
+
+    switch ( wxMessageBox(msgDlg, wxT("wxWindows Debug Alert"),
+                          wxYES_NO | wxCANCEL | wxICON_STOP ) )

     {
     {

-        unsigned w, h, bpp;
-        if ( wxSscanf(modeDesc.c_str(), _T("%ux%u-%u"), &w, &h, &bpp) != 3 )
-        {
-            wxLogError(_("Unsupported display mode '%s'."), themeName.c_str());
+        case wxYES:
+            wxTrap();
+            break;

 
 

-            return FALSE;
-        }
+        case wxCANCEL:
+            // no more asserts
+            return true;

 
 

-        SetDisplayMode(wxDisplayModeInfo(wxSize(w, h), bpp));
+        //case wxNO: nothing to do

     }
     }

-#endif
-
-    return TRUE;
-}
-
-bool wxAppBase::OnCmdLineHelp(wxCmdLineParser& parser)
-{
-    parser.Usage();
-
-    return FALSE;
-}
-
-bool wxAppBase::OnCmdLineError(wxCmdLineParser& parser)
-{
-    parser.Usage();

 
 

-    return FALSE;
+    return false;
+#endif // !wxUSE_MSGDLG/wxUSE_MSGDLG

 }
 
 }
 

-#endif // wxUSE_CMDLINE_PARSER
-
-// ----------------------------------------------------------------------------
-// debugging support
-// ----------------------------------------------------------------------------
-
-#ifdef  __WXDEBUG__
+#endif // __WXDEBUG__

 
 

-// wxASSERT() helper
-bool wxAssertIsEqual(int x, int y)
+bool wxGUIAppTraitsBase::HasStderr()

 {
 {

-    return x == y;
-}
-
-// break into the debugger
-void wxTrap()
-{
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
-    DebugBreak();
-#elif defined(__WXMAC__)
-#if __powerc
-    Debugger();
+    // we consider that under Unix stderr always goes somewhere, even if the
+    // user doesn't always see it under GUI desktops
+#ifdef __UNIX__
+    return true;

 #else
 #else

-    SysBreak();
+    return false;

 #endif
 #endif

-#elif defined(__UNIX__)
-    raise(SIGTRAP);
-#else
-    // TODO
-#endif // Win/Unix

 }
 
 }
 

-// show the assert modal dialog
-static
-void ShowAssertDialog(const wxChar *szFile, int nLine, const wxChar *szMsg)
+void wxGUIAppTraitsBase::ScheduleForDestroy(wxObject *object)

 {
 {

-    // this variable can be set to true to suppress "assert failure" messages
-    static bool s_bNoAsserts = FALSE;
-
-    wxChar szBuf[4096];
-
-    // make life easier for people using VC++ IDE: clicking on the message
-    // will take us immediately to the place of the failed assert
-    wxSnprintf(szBuf, WXSIZEOF(szBuf),
-#ifdef __VISUALC__
-               wxT("%s(%d): assert failed"),
-#else  // !VC++
-    // make the error message more clear for all the others
-               wxT("Assert failed in file %s at line %d"),
-#endif // VC/!VC
-               szFile, nLine);
-
-    if ( szMsg != NULL )
-    {
-        wxStrcat(szBuf, wxT(": "));
-        wxStrcat(szBuf, szMsg);
-    }
-    else // no message given
-    {
-        wxStrcat(szBuf, wxT("."));
-    }
-
-    if ( !s_bNoAsserts )
-    {
-        // send it to the normal log destination
-        wxLogDebug(szBuf);
-
-#if (wxUSE_GUI && wxUSE_MSGDLG) || defined(__WXMSW__)
-        // this message is intentionally not translated - it is for
-        // developpers only
-        wxStrcat(szBuf, wxT("\nDo you want to stop the program?\nYou can also choose [Cancel] to suppress further warnings."));
-
-        // use the native message box if available: this is more robust than
-        // using our own
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
-        switch ( ::MessageBox(NULL, szBuf, _T("Debug"),
-                              MB_YESNOCANCEL | MB_ICONSTOP ) )
-        {
-            case IDYES:
-                wxTrap();
-                break;
-
-            case IDCANCEL:
-                s_bNoAsserts = TRUE;
-                break;
-
-            //case IDNO: nothing to do
-        }
-#else // !MSW
-        switch ( wxMessageBox(szBuf, wxT("Debug"),
-                              wxYES_NO | wxCANCEL | wxICON_STOP ) )
-        {
-            case wxYES:
-                wxTrap();
-                break;
-
-            case wxCANCEL:
-                s_bNoAsserts = TRUE;
-                break;
-
-            //case wxNO: nothing to do
-        }
-#endif // GUI or MSW
-
-#else // !GUI
-        wxTrap();
-#endif // GUI/!GUI
-    }
+    if ( !wxPendingDelete.Member(object) )
+        wxPendingDelete.Append(object);

 }
 
 }
 

-// this function is called when an assert fails
-void wxOnAssert(const wxChar *szFile, int nLine, const wxChar *szMsg)
+void wxGUIAppTraitsBase::RemoveFromPendingDelete(wxObject *object)

 {
 {

-    // FIXME MT-unsafe
-    static bool s_bInAssert = FALSE;
-
-    if ( s_bInAssert )
-    {
-        // He-e-e-e-elp!! we're trapped in endless loop
-        wxTrap();
-
-        s_bInAssert = FALSE;
-
-        return;
-    }
-
-    s_bInAssert = TRUE;
-
-    if ( !wxTheApp )
-    {
-        // by default, show the assert dialog box - we can't customize this
-        // behaviour
-        ShowAssertDialog(szFile, nLine, szMsg);
-    }
-    else
-    {
-        // let the app process it as it wants
-        wxTheApp->OnAssert(szFile, nLine, szMsg);
-    }
-
-    s_bInAssert = FALSE;
+    wxPendingDelete.DeleteObject(object);

 }
 
 }
 

-void wxAppBase::OnAssert(const wxChar *file, int line, const wxChar *msg)
+// ----------------------------------------------------------------------------
+// wxAppTraits
+// ----------------------------------------------------------------------------
+
+wxAppTraits *wxAppTraitsBase::CreateGUI()

 {
 {

-    ShowAssertDialog(file, line, msg);
+    return new wxGUIAppTraits;

 }
 
 }
 

-#endif  //WXDEBUG
-