[ 1216436 ] cleanup 'shadow variable' warnings from gcc in headers.

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

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 53aa238e66165046506fec4f015e4c5adcb8f348..4d25eb73def0d8591edb22c7be25bf22ea9f32c2 100644 (file)
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -34,6 +34,11 @@
 #include "wx/filename.h"
 #include "wx/module.h"
 #include "wx/image.h"
 #include "wx/filename.h"
 #include "wx/module.h"
 #include "wx/image.h"

+#include "wx/thread.h"
+
+#ifdef __WXGPE__
+#include <gpe/init.h>
+#endif

 
 #ifdef __WXUNIVERSAL__
     #include "wx/univ/theme.h"
 
 #ifdef __WXUNIVERSAL__
     #include "wx/univ/theme.h"


@@ -75,7 +80,6 @@
 
 #include <gtk/gtk.h>
 
 
 #include <gtk/gtk.h>
 

-

 //-----------------------------------------------------------------------------
 // global data
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // global data
 //-----------------------------------------------------------------------------


@@ -93,6 +97,10 @@ extern bool g_isIdle;
 
 void wxapp_install_idle_handler();
 
 
 void wxapp_install_idle_handler();
 

+#if wxUSE_THREADS
+static wxMutex gs_idleTagsMutex;
+#endif
+

 //-----------------------------------------------------------------------------
 // wxYield
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxYield
 //-----------------------------------------------------------------------------


@@ -124,18 +132,15 @@ bool wxApp::Yield(bool onlyIfNeeded)
 
     wxIsInsideYield = TRUE;
 
 
     wxIsInsideYield = TRUE;
 

-    if (!g_isIdle)
-    {
-        // We need to remove idle callbacks or the loop will
-        // never finish.
-        gtk_idle_remove( m_idleTag );
-        m_idleTag = 0;
-        g_isIdle = TRUE;
-    }
+    // We need to remove idle callbacks or the loop will
+    // never finish.
+    wxTheApp->RemoveIdleTag();

 
 

+#if wxUSE_LOG

     // disable log flushing from here because a call to wxYield() shouldn't
     // normally result in message boxes popping up &c
     wxLog::Suspend();
     // disable log flushing from here because a call to wxYield() shouldn't
     // normally result in message boxes popping up &c
     wxLog::Suspend();

+#endif

 
     while (gtk_events_pending())
         gtk_main_iteration();
 
     while (gtk_events_pending())
         gtk_main_iteration();


@@ -148,8 +153,10 @@ bool wxApp::Yield(bool onlyIfNeeded)
     // return value of Processidle().
     ProcessIdle();
 
     // return value of Processidle().
     ProcessIdle();
 

+#if wxUSE_LOG

     // let the logs be flashed again
     wxLog::Resume();
     // let the logs be flashed again
     wxLog::Resume();

+#endif

 
     wxIsInsideYield = FALSE;
 
 
     wxIsInsideYield = FALSE;
 


@@ -160,20 +167,30 @@ bool wxApp::Yield(bool onlyIfNeeded)
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
 
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
 

+// RR/KH: The wxMutexGui calls are not needed on GTK2 according to
+// the GTK faq, http://www.gtk.org/faq/#AEN500
+// The calls to gdk_threads_enter() and leave() are specifically noted
+// as not being necessary.  The MutexGui calls are still left in for GTK1.
+// Eliminating the MutexGui calls fixes the long-standing "random" lockup
+// when using wxPostEvent (which calls WakeUpIdle) from a thread.
+

 void wxApp::WakeUpIdle()
 {
 void wxApp::WakeUpIdle()
 {

+#ifndef __WXGTK20__

 #if wxUSE_THREADS
     if (!wxThread::IsMain())
         wxMutexGuiEnter();
 #if wxUSE_THREADS
     if (!wxThread::IsMain())
         wxMutexGuiEnter();

-#endif
+#endif // wxUSE_THREADS_
+#endif // __WXGTK2__

 
 

-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    wxapp_install_idle_handler();

 
 

+#ifndef __WXGTK20__

 #if wxUSE_THREADS
     if (!wxThread::IsMain())
         wxMutexGuiLeave();
 #if wxUSE_THREADS
     if (!wxThread::IsMain())
         wxMutexGuiLeave();

-#endif
+#endif // wxUSE_THREADS_
+#endif // __WXGTK2__

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


@@ -196,7 +213,12 @@ static gint wxapp_pending_callback( gpointer WXUNUSED(data) )
     // Sent idle event to all who request them.
     wxTheApp->ProcessPendingEvents();
 
     // Sent idle event to all who request them.
     wxTheApp->ProcessPendingEvents();
 

-    g_pendingTag = 0;
+    {
+#if wxUSE_THREADS
+        wxMutexLocker lock(gs_idleTagsMutex);
+#endif
+        g_pendingTag = 0;
+    }

 
     // Flush the logged messages if any.
 #if wxUSE_LOG
 
     // Flush the logged messages if any.
 #if wxUSE_LOG


@@ -244,8 +266,13 @@ static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 
     // Indicate that we are now in idle mode and event handlers
     // will have to reinstall the idle handler again.
 
     // Indicate that we are now in idle mode and event handlers
     // will have to reinstall the idle handler again.

-    g_isIdle = TRUE;
-    wxTheApp->m_idleTag = 0;
+    {
+#if wxUSE_THREADS
+        wxMutexLocker lock(gs_idleTagsMutex);
+#endif
+        g_isIdle = TRUE;
+        wxTheApp->m_idleTag = 0;
+    }

 
     // Send idle event to all who request them as long as
     // no events have popped up in the event queue.
 
     // Send idle event to all who request them as long as
     // no events have popped up in the event queue.


@@ -353,6 +380,15 @@ static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
 
 void wxapp_install_idle_handler()
 {
 
 void wxapp_install_idle_handler()
 {

+#if wxUSE_THREADS
+    wxMutexLocker lock(gs_idleTagsMutex);
+#endif
+
+    // Don't install the handler if it's already installed. This test *MUST*
+    // be done when gs_idleTagsMutex is locked!
+    if (!g_isIdle)
+        return;
+

     // GD: this assert is raised when using the thread sample (which works)
     //     so the test is probably not so easy. Can widget callbacks be
     //     triggered from child threads and, if so, for which widgets?
     // GD: this assert is raised when using the thread sample (which works)
     //     so the test is probably not so easy. Can widget callbacks be
     //     triggered from child threads and, if so, for which widgets?


@@ -404,6 +440,7 @@ wxApp::wxApp()
 #endif // __WXDEBUG__
 
     m_idleTag = 0;
 #endif // __WXDEBUG__
 
     m_idleTag = 0;

+    g_isIdle = TRUE;

     wxapp_install_idle_handler();
 
 #if wxUSE_THREADS
     wxapp_install_idle_handler();
 
 #if wxUSE_THREADS


@@ -414,6 +451,7 @@ wxApp::wxApp()
 
     // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
     m_glVisualInfo = (void *) NULL;
 
     // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
     m_glVisualInfo = (void *) NULL;

+    m_glFBCInfo = (void *) NULL;

 }
 
 wxApp::~wxApp()
 }
 
 wxApp::~wxApp()


@@ -539,13 +577,15 @@ GdkVisual *wxApp::GetGdkVisual()
 
 bool wxApp::Initialize(int& argc, wxChar **argv)
 {
 
 bool wxApp::Initialize(int& argc, wxChar **argv)
 {

+    bool init_result;
+    

 #if wxUSE_THREADS
     // GTK 1.2 up to version 1.2.3 has broken threads
     if ((gtk_major_version == 1) &&
         (gtk_minor_version == 2) &&
         (gtk_micro_version < 4))
     {
 #if wxUSE_THREADS
     // GTK 1.2 up to version 1.2.3 has broken threads
     if ((gtk_major_version == 1) &&
         (gtk_minor_version == 2) &&
         (gtk_micro_version < 4))
     {

-        printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
+        printf( "wxWidgets warning: GUI threading disabled due to outdated GTK version\n" );

     }
     else
     {
     }
     else
     {


@@ -570,6 +610,34 @@ bool wxApp::Initialize(int& argc, wxChar **argv)
         wxConvCurrent = (wxMBConv*) NULL;
 #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
 
         wxConvCurrent = (wxMBConv*) NULL;
 #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
 

+#ifdef __WXGTK20__
+    // decide which conversion to use for the file names
+
+    // (1) this variable exists for the sole purpose of specifying the encoding
+    //     of the filenames for GTK+ programs, so use it if it is set
+    wxString encName(wxGetenv(_T("G_FILENAME_ENCODING")));
+    if (encName == _T("@locale"))
+        encName.clear();
+    encName.MakeUpper();
+#if wxUSE_INTL        
+    if (encName.empty())
+    {
+        // (2) if a non default locale is set, assume that the user wants his
+        //     filenames in this locale too
+        encName = wxLocale::GetSystemEncodingName().Upper();
+        // (3) finally use UTF-8 by default
+        if (encName.empty() || encName == _T("US-ASCII"))
+            encName = _T("UTF-8");
+        wxSetEnv(_T("G_FILENAME_ENCODING"), encName);
+    }
+#else
+    if (encName.empty())
+        encName = _T("UTF-8");
+#endif // wxUSE_INTL
+    static wxConvBrokenFileNames fileconv(encName);
+    wxConvFileName = &fileconv;
+#endif // __WXGTK20__
+

 #if wxUSE_UNICODE
     // gtk_init() wants UTF-8, not wchar_t, so convert
     int i;
 #if wxUSE_UNICODE
     // gtk_init() wants UTF-8, not wchar_t, so convert
     int i;


@@ -582,7 +650,13 @@ bool wxApp::Initialize(int& argc, wxChar **argv)
     argvGTK[argc] = NULL;
 
     int argcGTK = argc;
     argvGTK[argc] = NULL;
 
     int argcGTK = argc;

-    gtk_init( &argcGTK, &argvGTK );
+    
+#ifdef __WXGPE__
+    init_result = true;  // is there a _check() version of this?
+    gpe_application_init( &argcGTK, &argvGTK );
+#else
+    init_result = gtk_init_check( &argcGTK, &argvGTK );
+#endif

 
     if ( argcGTK != argc )
     {
 
     if ( argcGTK != argc )
     {


@@ -609,9 +683,14 @@ bool wxApp::Initialize(int& argc, wxChar **argv)
 #else // !wxUSE_UNICODE
     // gtk_init() shouldn't actually change argv itself (just its contents) so
     // it's ok to pass pointer to it
 #else // !wxUSE_UNICODE
     // gtk_init() shouldn't actually change argv itself (just its contents) so
     // it's ok to pass pointer to it

-    gtk_init( &argc, &argv );
+    init_result = gtk_init_check( &argc, &argv );

 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 

+    if (!init_result) {
+        wxLogError(wxT("Unable to initialize gtk, is DISPLAY set properly?"));
+        return false;
+    }
+    

     // we can not enter threads before gtk_init is done
     gdk_threads_enter();
 
     // we can not enter threads before gtk_init is done
     gdk_threads_enter();
 


@@ -628,8 +707,6 @@ bool wxApp::Initialize(int& argc, wxChar **argv)
     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 #endif
 
     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 #endif
 

-    wxGetRootWindow();
-

     return true;
 }
 
     return true;
 }
 


@@ -653,3 +730,15 @@ void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxC
 
 #endif // __WXDEBUG__
 
 
 #endif // __WXDEBUG__
 

+void wxApp::RemoveIdleTag()
+{
+#if wxUSE_THREADS
+    wxMutexLocker lock(gs_idleTagsMutex);
+#endif
+    if (!g_isIdle)
+    {
+        gtk_idle_remove( wxTheApp->m_idleTag );
+        wxTheApp->m_idleTag = 0;
+        g_isIdle = TRUE;
+    }
+}