compilation warning fix

[wxWidgets.git] / src / mgl / app.cpp

diff --git a/src/mgl/app.cpp b/src/mgl/app.cpp
index 1474a3466751001f2aeec4f5b3851ef863e2b94d..77a30f02201f2d299e1db977e8c0ff7709fb2039 100644 (file)
--- a/src/mgl/app.cpp
+++ b/src/mgl/app.cpp
@@ -1,7 +1,7 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        app.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        app.cpp

-// Purpose:

 // Author:      Vaclav Slavik
 // Author:      Vaclav Slavik

+//              based on GTK and MSW implementations

 // Id:          $Id$
 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
 // Licence:     wxWindows licence
 // Id:          $Id$
 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
 // Licence:     wxWindows licence


@@ -11,33 +11,53 @@
     #pragma implementation "app.h"
 #endif
 
     #pragma implementation "app.h"
 #endif
 

+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+
+#ifndef WX_PRECOMP
+    #include "wx/settings.h"
+    #include "wx/module.h"
+    #include "wx/evtloop.h"
+    #include "wx/frame.h"
+    #include "wx/dialog.h"
+    #include "wx/log.h"
+    #include "wx/intl.h"
+    #include "wx/resource.h"
+#endif
+

 #include "wx/app.h"
 #include "wx/app.h"

-#include "wx/settings.h"
-#include "wx/module.h"
+#include "wx/fontutil.h"
+#include "wx/univ/theme.h"
+#include "wx/univ/renderer.h"
+#include "wx/univ/colschem.h"
+#include "wx/mgl/private.h"

 
 

-#include <mgraph.hpp>
+#define MGL_DEBUG
+
+#if defined(MGL_DEBUG) && !defined(__WXDEBUG__)
+#undef MGL_DEBUG
+#endif

 
 //-----------------------------------------------------------------------------
 // Global data
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // Global data
 //-----------------------------------------------------------------------------
 

-// MGL's display DC:
-MGLDevCtx *g_displayDC = NULL;
-
-// ----
-
-wxApp *wxTheApp = (wxApp *)  NULL;
+wxApp *wxTheApp = NULL;

 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 
 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 

-// FIXME_MGL - whole file
-
-
-extern bool g_isIdle;

 
 

-bool g_mainThreadLocked = FALSE;
+//-----------------------------------------------------------------------------
+// wxExit
+//-----------------------------------------------------------------------------

 
 void wxExit()
 {
 
 void wxExit()
 {

+    MGL_exit();

     exit(0);
 }
 
     exit(0);
 }
 


@@ -45,17 +65,145 @@ void wxExit()
 // wxYield
 //-----------------------------------------------------------------------------
 
 // wxYield
 //-----------------------------------------------------------------------------
 

-bool wxYield()
+static bool gs_inYield = FALSE;
+
+bool wxApp::Yield(bool onlyIfNeeded)

 {
 {

+    if ( gs_inYield )
+    {
+        if ( !onlyIfNeeded )
+        {
+            wxFAIL_MSG( wxT("wxYield called recursively" ) );
+        }
+
+        return FALSE;
+    }
+
+#if wxUSE_THREADS
+    if ( !wxThread::IsMain() )
+    {
+        // can't process events from other threads, MGL is thread-unsafe
+        return TRUE;
+    }
+#endif // wxUSE_THREADS
+
+    gs_inYield = TRUE;
+
+    wxLog::Suspend();
+
+    if ( wxEventLoop::GetActive() )
+    {
+        while (wxEventLoop::GetActive()->Pending())
+            wxEventLoop::GetActive()->Dispatch();
+    }
+        
+    /* it's necessary to call ProcessIdle() to update the frames sizes which
+       might have been changed (it also will update other things set from
+       OnUpdateUI() which is a nice (and desired) side effect) */
+    while (wxTheApp->ProcessIdle()) { }
+
+    wxLog::Resume();
+
+    gs_inYield = FALSE;
+

     return TRUE;
 }
 
     return TRUE;
 }
 

+

 //-----------------------------------------------------------------------------
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
 
 void wxWakeUpIdle()
 {
 //-----------------------------------------------------------------------------
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
 
 void wxWakeUpIdle()
 {

+#if wxUSE_THREADS
+    if (!wxThread::IsMain())
+        wxMutexGuiEnter();
+#endif
+
+    while (wxTheApp->ProcessIdle()) {} 
+
+#if wxUSE_THREADS
+    if (!wxThread::IsMain())
+        wxMutexGuiLeave();
+#endif
+}
+
+//-----------------------------------------------------------------------------
+// Root window
+//-----------------------------------------------------------------------------
+
+class wxRootWindow : public wxWindow
+{
+    public:
+        wxRootWindow() : wxWindow(NULL, -1)
+        {
+            SetMGLwindow_t(MGL_wmGetRootWindow(g_winMng));
+            SetBackgroundColour(wxTHEME_COLOUR(DESKTOP));
+        }
+        ~wxRootWindow()
+        {
+            // we don't want to delete MGL_WM's rootWnd
+            m_wnd = NULL; 
+        }
+
+        virtual bool AcceptsFocus() { return FALSE; }
+};
+
+static wxRootWindow *gs_rootWindow = NULL;
+
+//-----------------------------------------------------------------------------
+// MGL initialization
+//-----------------------------------------------------------------------------
+
+static bool wxCreateMGL_WM(const wxDisplayModeInfo& displayMode)
+{
+    int mode;
+    int refresh = MGL_DEFAULT_REFRESH;
+    
+#if wxUSE_SYSTEM_OPTIONS
+    if ( wxSystemOptions::HasOption(wxT("mgl.screen-refresh") )
+        refresh = wxSystemOptions::GetOptionInt(wxT("mgl.screen-refresh"));
+#endif
+        
+    mode = MGL_findMode(displayMode.GetScreenSize().x, 
+                        displayMode.GetScreenSize().y, 
+                        displayMode.GetDepth());
+    if ( mode == -1 )
+    {
+        wxLogError(_("Mode %ix%i-%i not available."), 
+                     displayMode.GetScreenSize().x, 
+                     displayMode.GetScreenSize().y, 
+                     displayMode.GetDepth());
+        return FALSE;
+    }
+    g_displayDC = new MGLDisplayDC(mode, 1, refresh);
+    if ( !g_displayDC->isValid() )
+    {
+        delete g_displayDC;
+        g_displayDC = NULL;
+        return FALSE;
+    }
+    
+    g_winMng = MGL_wmCreate(g_displayDC->getDC());
+    if (!g_winMng)
+        return FALSE;
+
+    return TRUE;
+}
+
+static void wxDestroyMGL_WM()
+{
+    if ( g_winMng )
+    {
+        MGL_wmDestroy(g_winMng);
+        g_winMng = NULL;
+    }
+    if ( g_displayDC )
+    {
+        delete g_displayDC;
+        g_displayDC = NULL;
+    }

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -69,26 +217,405 @@ BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 END_EVENT_TABLE()
 
 
 END_EVENT_TABLE()
 
 

-int wxEntry( int argc, char *argv[] )
+wxApp::wxApp() : m_mainLoop(NULL)
+{
+}
+
+wxApp::~wxApp()

 {
 {

-    return 0;

 }
 
 }
 

+bool wxApp::SetDisplayMode(const wxDisplayModeInfo& mode)
+{
+    if ( !mode.IsOk() )
+    {
+        return FALSE;
+    }
+    if ( g_displayDC != NULL )
+    {
+        // FIXME_MGL -- we currently don't allow to switch video mode
+        // more than once. This can hopefully be changed...
+        wxFAIL_MSG(wxT("Can't change display mode after intialization!"));
+        return FALSE;
+    }
+
+    if ( !wxCreateMGL_WM(mode) )
+        return FALSE;
+    gs_rootWindow = new wxRootWindow;

 
 

-// FIXME_MGL - this is temporary solution, will be removed
-// once I have wxApp up and running
-bool wxMGL_Initialize()
+    m_displayMode = mode;
+
+    return TRUE;
+}
+
+bool wxApp::OnInitGui()

 {
 {

+    if ( !wxAppBase::OnInitGui() )
+        return FALSE;
+
+#ifdef MGL_DEBUG
+    // That damn MGL redirects stdin and stdout to physical console
+    FILE *file = fopen("stderr", "wt");
+    wxLog::SetActiveTarget(new wxLogStderr(file));
+#endif
+
+    return TRUE;
+}
+
+bool wxApp::ProcessIdle()
+{
+    wxIdleEvent event;
+    event.SetEventObject(this);
+    ProcessEvent(event);
+
+    return event.MoreRequested();
+}
+
+void wxApp::OnIdle(wxIdleEvent &event)
+{
+    static bool s_inOnIdle = FALSE;
+
+    /* Avoid recursion (via ProcessEvent default case) */
+    if (s_inOnIdle)
+        return;
+
+    s_inOnIdle = TRUE;
+
+    /* Resend in the main thread events which have been prepared in other
+       threads */
+    ProcessPendingEvents();
+
+    // 'Garbage' collection of windows deleted with Close().
+    DeletePendingObjects();
+
+    // Send OnIdle events to all windows
+    if ( SendIdleEvents() )
+        event.RequestMore(TRUE);
+
+    s_inOnIdle = FALSE;
+}
+
+bool wxApp::SendIdleEvents()
+{
+    bool needMore = FALSE;
+
+    wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
+    while (node)
+    {
+        wxWindow* win = node->GetData();
+        if ( SendIdleEvents(win) )
+            needMore = TRUE;
+        node = node->GetNext();
+    }
+
+    return needMore;
+}
+
+bool wxApp::SendIdleEvents(wxWindow* win)
+{
+    bool needMore = FALSE;
+
+    wxIdleEvent event;
+    event.SetEventObject(win);
+
+    win->GetEventHandler()->ProcessEvent(event);
+
+    if ( event.MoreRequested() )
+        needMore = TRUE;
+
+    wxNode* node = win->GetChildren().First();
+    while (node)
+    {
+        wxWindow* win = (wxWindow*) node->Data();
+        if ( SendIdleEvents(win) )
+            needMore = TRUE;
+
+        node = node->Next();
+    }
+    return needMore;
+}
+
+int wxApp::MainLoop()
+{
+    int rt;
+    m_mainLoop = new wxEventLoop;
+
+    rt = m_mainLoop->Run();
+
+    delete m_mainLoop;
+    m_mainLoop = NULL;
+    return rt;
+}
+
+void wxApp::ExitMainLoop()
+{
+    if ( m_mainLoop )
+        m_mainLoop->Exit(0);
+}
+
+bool wxApp::Initialized()
+{
+    return (wxTopLevelWindows.GetCount() != 0);
+}
+
+bool wxApp::Pending()
+{
+    return wxEventLoop::GetActive()->Pending();
+}
+
+void wxApp::Dispatch()
+{
+    wxEventLoop::GetActive()->Dispatch();
+}
+
+void wxApp::DeletePendingObjects()
+{
+    wxNode *node = wxPendingDelete.First();
+    while (node)
+    {
+        wxObject *obj = (wxObject *)node->Data();
+
+        delete obj;
+
+        if ( wxPendingDelete.Find(obj) )
+            delete node;
+
+        node = wxPendingDelete.First();
+    }
+}
+
+bool wxApp::Initialize()
+{
+    if ( MGL_init(".", NULL) == 0 )
+        return FALSE;
+

     wxBuffer = new wxChar[BUFSIZ + 512];
 
     wxClassInfo::InitializeClasses();
     wxBuffer = new wxChar[BUFSIZ + 512];
 
     wxClassInfo::InitializeClasses();

+

     wxSystemSettings::Init();
     wxSystemSettings::Init();

-    wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING );
+    
+#if wxUSE_INTL
+    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
+#endif
+
+    // GL: I'm annoyed ... I don't know where to put this and I don't want to
+    // create a module for that as it's part of the core.
+#if wxUSE_THREADS
+    wxPendingEvents = new wxList;
+    wxPendingEventsLocker = new wxCriticalSection;
+#endif
+
+    wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);

     wxTheColourDatabase->Initialize();
     wxTheColourDatabase->Initialize();

+    
+    // Can't do this in wxModule, because fonts are needed by stock lists
+    wxTheFontsManager = new wxFontsManager;
+

     wxInitializeStockLists();
     wxInitializeStockObjects();
     wxInitializeStockLists();
     wxInitializeStockObjects();

+
+#if wxUSE_WX_RESOURCES
+    wxInitializeResourceSystem();
+#endif
+

     wxModule::RegisterModules();
     if (!wxModule::InitializeModules()) return FALSE;
     wxModule::RegisterModules();
     if (!wxModule::InitializeModules()) return FALSE;

+

     return TRUE;
 }
 
     return TRUE;
 }
 

+wxIcon wxApp::GetStdIcon(int which) const
+{
+    return wxTheme::Get()->GetRenderer()->GetStdIcon(which);
+}
+
+void wxApp::CleanUp()
+{
+    delete gs_rootWindow;
+
+#if wxUSE_LOG
+    // flush the logged messages if any
+    wxLog *log = wxLog::GetActiveTarget();
+    if (log != NULL && log->HasPendingMessages())
+        log->Flush();
+
+    // continuing to use user defined log target is unsafe from now on because
+    // some resources may be already unavailable, so replace it by something
+    // more safe
+    wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr);
+    if ( oldlog )
+        delete oldlog;
+#endif // wxUSE_LOG
+
+    wxModule::CleanUpModules();
+
+#if wxUSE_WX_RESOURCES
+    wxCleanUpResourceSystem();
+#endif
+
+    if (wxTheColourDatabase)
+        delete wxTheColourDatabase;
+
+    wxTheColourDatabase = (wxColourDatabase*) NULL;
+
+    wxDeleteStockObjects();
+    wxDeleteStockLists();
+
+    // Can't do this in wxModule, because fonts are needed by stock lists
+    delete wxTheFontsManager;
+    wxTheFontsManager = (wxFontsManager*) NULL;
+
+    delete wxTheApp;
+    wxTheApp = (wxApp*) NULL;
+
+    // GL: I'm annoyed ... I don't know where to put this and I don't want to
+    // create a module for that as it's part of the core.
+#if wxUSE_THREADS
+    delete wxPendingEvents;
+    delete wxPendingEventsLocker;
+#endif
+
+    wxSystemSettings::Done();
+
+    delete[] wxBuffer;
+
+    wxClassInfo::CleanUpClasses();
+
+    // check for memory leaks
+#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+    if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
+    {
+        wxLogDebug(wxT("There were memory leaks.\n"));
+        wxDebugContext::Dump();
+        wxDebugContext::PrintStatistics();
+    }
+#endif // Debug
+
+#if wxUSE_LOG
+    // do this as the very last thing because everything else can log messages
+    wxLog::DontCreateOnDemand();
+
+    wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL );
+    if (oldLog)
+        delete oldLog;
+#endif // wxUSE_LOG
+
+    wxDestroyMGL_WM();
+    MGL_exit();
+}
+
+
+int wxEntryStart(int argc, char *argv[])
+{
+    return wxApp::Initialize() ? 0 : -1;
+}
+
+
+int wxEntryInitGui()
+{
+    return wxTheApp->OnInitGui() ? 0 : -1;
+}
+
+
+void wxEntryCleanup()
+{
+    wxApp::CleanUp();
+}
+
+
+
+int wxEntry(int argc, char *argv[])
+{
+#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+    // This seems to be necessary since there are 'rogue'
+    // objects present at this point (perhaps global objects?)
+    // Setting a checkpoint will ignore them as far as the
+    // memory checking facility is concerned.
+    // Of course you may argue that memory allocated in globals should be
+    // checked, but this is a reasonable compromise.
+    wxDebugContext::SetCheckpoint();
+#endif
+    int err = wxEntryStart(argc, argv);
+    if ( err )
+        return err;
+
+    if ( !wxTheApp )
+    {
+        wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,
+                     wxT("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") );
+
+        wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
+
+        wxObject *test_app = app_ini();
+
+        wxTheApp = (wxApp*) test_app;
+    }
+
+    wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") );
+
+    wxTheApp->argc = argc;
+#if wxUSE_UNICODE
+    wxTheApp->argv = new wxChar*[argc+1];
+    int mb_argc = 0;
+    while (mb_argc < argc)
+    {
+        wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
+        mb_argc++;
+    }
+    wxTheApp->argv[mb_argc] = (wxChar *)NULL;
+#else
+    wxTheApp->argv = argv;
+#endif
+
+    wxString name(wxFileNameFromPath(argv[0]));
+    wxStripExtension(name);
+    wxTheApp->SetAppName(name);
+
+    int retValue;
+    retValue = wxEntryInitGui();
+
+    // Here frames insert themselves automatically into wxTopLevelWindows by
+    // getting created in OnInit().
+    if ( retValue == 0 )
+    {
+        if ( !wxTheApp->OnInit() )
+            retValue = -1;
+    }
+
+    if ( retValue == 0 )
+    {
+        /* delete pending toplevel windows (typically a single
+           dialog) so that, if there isn't any left, we don't
+           call OnRun() */
+        wxTheApp->DeletePendingObjects();
+
+        if ( wxTheApp->Initialized() )
+        {
+            wxTheApp->OnRun();
+
+            wxWindow *topWindow = wxTheApp->GetTopWindow();
+            if ( topWindow )
+            {
+                /* Forcibly delete the window. */
+                if (topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
+                    topWindow->IsKindOf(CLASSINFO(wxDialog)) )
+                {
+                    topWindow->Close(TRUE);
+                    wxTheApp->DeletePendingObjects();
+                }
+                else
+                {
+                    delete topWindow;
+                    wxTheApp->SetTopWindow((wxWindow*) NULL);
+                }
+            }
+
+            retValue = wxTheApp->OnExit();
+        }
+    }
+
+    wxEntryCleanup();
+
+    return retValue;
+}