// Created: 19.06.2003 (extracted from common/appcmn.cpp)
// RCS-ID: $Id$
// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
-// License: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
#include "wx/filename.h"
#include "wx/msgout.h"
#include "wx/scopedptr.h"
+#include "wx/sysopt.h"
#include "wx/tokenzr.h"
#include "wx/thread.h"
wxSocketManager *wxAppTraitsBase::ms_manager = NULL;
+WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete;
+
// ----------------------------------------------------------------------------
// wxEventLoopPtr
// ----------------------------------------------------------------------------
// In unicode mode the SetTraceMasks call can cause an apptraits to be
// created, but since we are still in the constructor the wrong kind will
// be created for GUI apps. Destroy it so it can be created again later.
- delete m_traits;
- m_traits = NULL;
+ wxDELETE(m_traits);
#endif
#endif
}
wxAppConsoleBase::~wxAppConsoleBase()
{
+ // we're being destroyed and using this object from now on may not work or
+ // even crash so don't leave dangling pointers to it
+ ms_appInstance = NULL;
+
delete m_traits;
}
// initialization/cleanup
// ----------------------------------------------------------------------------
-bool wxAppConsoleBase::Initialize(int& WXUNUSED(argc), wxChar **argv)
+bool wxAppConsoleBase::Initialize(int& WXUNUSED(argc), wxChar **WXUNUSED(argv))
{
#if wxUSE_INTL
GetTraits()->SetLocale();
#endif // wxUSE_INTL
+ return true;
+}
+
+wxString wxAppConsoleBase::GetAppName() const
+{
+ wxString name = m_appName;
#ifndef __WXPALMOS__
- if ( m_appName.empty() && argv && argv[0] )
+ if ( name.empty() )
{
- // the application name is, by default, the name of its executable file
- wxFileName::SplitPath(argv[0], NULL, &m_appName, NULL);
+ if ( argv )
+ {
+ // the application name is, by default, the name of its executable file
+ wxFileName::SplitPath(argv[0], NULL, &name, NULL);
+ }
}
#endif // !__WXPALMOS__
+ return name;
+}
- return true;
+wxString wxAppConsoleBase::GetAppDisplayName() const
+{
+ // use the explicitly provided display name, if any
+ if ( !m_appDisplayName.empty() )
+ return m_appDisplayName;
+
+ // if the application name was explicitly set, use it as is as capitalizing
+ // it won't always produce good results
+ if ( !m_appName.empty() )
+ return m_appName;
+
+ // if neither is set, use the capitalized version of the program file as
+ // it's the most reasonable default
+ return GetAppName().Capitalize();
}
wxEventLoopBase *wxAppConsoleBase::CreateMainLoop()
void wxAppConsoleBase::CleanUp()
{
- if ( m_mainLoop )
- {
- delete m_mainLoop;
- m_mainLoop = NULL;
- }
+ wxDELETE(m_mainLoop);
}
// ----------------------------------------------------------------------------
{
m_traits = CreateTraits();
- wxASSERT_MSG( m_traits, _T("wxApp::CreateTraits() failed?") );
+ wxASSERT_MSG( m_traits, wxT("wxApp::CreateTraits() failed?") );
}
return m_traits;
bool wxAppConsoleBase::Yield(bool onlyIfNeeded)
{
wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+ if ( loop )
+ return loop->Yield(onlyIfNeeded);
- return loop && loop->Yield(onlyIfNeeded);
+ wxScopedPtr<wxEventLoopBase> tmpLoop(CreateMainLoop());
+ return tmpLoop->Yield(onlyIfNeeded);
}
void wxAppConsoleBase::WakeUpIdle()
bool wxAppConsoleBase::ProcessIdle()
{
- wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+ // synthesize an idle event and check if more of them are needed
+ wxIdleEvent event;
+ event.SetEventObject(this);
+ ProcessEvent(event);
- return loop && loop->ProcessIdle();
+#if wxUSE_LOG
+ // flush the logged messages if any (do this after processing the events
+ // which could have logged new messages)
+ wxLog::FlushActive();
+#endif
+
+ // Garbage collect all objects previously scheduled for destruction.
+ DeletePendingObjects();
+
+ return event.MoreRequested();
+}
+
+bool wxAppConsoleBase::UsesEventLoop() const
+{
+ // in console applications we don't know whether we're going to have an
+ // event loop so assume we won't -- unless we already have one running
+ return wxEventLoopBase::GetActive() != NULL;
}
// ----------------------------------------------------------------------------
void wxAppConsoleBase::ProcessPendingEvents()
{
- if (!m_bDoPendingEventProcessing)
- return;
+ if ( m_bDoPendingEventProcessing )
+ {
+ wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
- wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+ wxCHECK_RET( m_handlersWithPendingDelayedEvents.IsEmpty(),
+ "this helper list should be empty" );
- wxCHECK_RET( m_handlersWithPendingDelayedEvents.IsEmpty(),
- "this helper list should be empty" );
+ // iterate until the list becomes empty: the handlers remove themselves
+ // from it when they don't have any more pending events
+ while (!m_handlersWithPendingEvents.IsEmpty())
+ {
+ // In ProcessPendingEvents(), new handlers might be added
+ // and we can safely leave the critical section here.
+ wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
- // iterate until the list becomes empty: the handlers remove themselves
- // from it when they don't have any more pending events
- while (!m_handlersWithPendingEvents.IsEmpty())
- {
- // In ProcessPendingEvents(), new handlers might be added
- // and we can safely leave the critical section here.
- wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
+ // NOTE: we always call ProcessPendingEvents() on the first event handler
+ // with pending events because handlers auto-remove themselves
+ // from this list (see RemovePendingEventHandler) if they have no
+ // more pending events.
+ m_handlersWithPendingEvents[0]->ProcessPendingEvents();
- // NOTE: we always call ProcessPendingEvents() on the first event handler
- // with pending events because handlers auto-remove themselves
- // from this list (see RemovePendingEventHandler) if they have no
- // more pending events.
- m_handlersWithPendingEvents[0]->ProcessPendingEvents();
+ wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+ }
- wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
- }
+ // now the wxHandlersWithPendingEvents is surely empty; however some event
+ // handlers may have moved themselves into wxHandlersWithPendingDelayedEvents
+ // because of a selective wxYield call in progress.
+ // Now we need to move them back to wxHandlersWithPendingEvents so the next
+ // call to this function has the chance of processing them:
+ if (!m_handlersWithPendingDelayedEvents.IsEmpty())
+ {
+ WX_APPEND_ARRAY(m_handlersWithPendingEvents, m_handlersWithPendingDelayedEvents);
+ m_handlersWithPendingDelayedEvents.Clear();
+ }
- // now the wxHandlersWithPendingEvents is surely empty; however some event
- // handlers may have moved themselves into wxHandlersWithPendingDelayedEvents
- // because of a selective wxYield call in progress.
- // Now we need to move them back to wxHandlersWithPendingEvents so the next
- // call to this function has the chance of processing them:
- if (!m_handlersWithPendingDelayedEvents.IsEmpty())
- {
- WX_APPEND_ARRAY(m_handlersWithPendingEvents, m_handlersWithPendingDelayedEvents);
- m_handlersWithPendingDelayedEvents.Clear();
+ wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
}
-
- wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
}
void wxAppConsoleBase::DeletePendingEvents()
wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
}
+// ----------------------------------------------------------------------------
+// delayed objects destruction
+// ----------------------------------------------------------------------------
+
+bool wxAppConsoleBase::IsScheduledForDestruction(wxObject *object) const
+{
+ return wxPendingDelete.Member(object);
+}
+
+void wxAppConsoleBase::ScheduleForDestruction(wxObject *object)
+{
+ if ( !UsesEventLoop() )
+ {
+ // we won't be able to delete it later so do it right now
+ delete object;
+ return;
+ }
+ //else: we either already have or will soon start an event loop
+
+ if ( !wxPendingDelete.Member(object) )
+ wxPendingDelete.Append(object);
+}
+
+void wxAppConsoleBase::DeletePendingObjects()
+{
+ wxList::compatibility_iterator node = wxPendingDelete.GetFirst();
+ while (node)
+ {
+ wxObject *obj = node->GetData();
+
+ // remove it from the list first so that if we get back here somehow
+ // during the object deletion (e.g. wxYield called from its dtor) we
+ // wouldn't try to delete it the second time
+ if ( wxPendingDelete.Member(obj) )
+ wxPendingDelete.Erase(node);
+
+ delete obj;
+
+ // Deleting one object may have deleted other pending
+ // objects, so start from beginning of list again.
+ node = wxPendingDelete.GetFirst();
+ }
+}
+
// ----------------------------------------------------------------------------
// exception handling
// ----------------------------------------------------------------------------
wxString progName = wxString::FromAscii(componentName);
wxString msg;
- msg.Printf(_T("Mismatch between the program and library build versions detected.\nThe library used %s,\nand %s used %s."),
+ msg.Printf(wxT("Mismatch between the program and library build versions detected.\nThe library used %s,\nand %s used %s."),
lib.c_str(), progName.c_str(), prog.c_str());
wxLogFatalError(msg.c_str());
return true;
}
-void wxConsoleAppTraitsBase::ScheduleForDestroy(wxObject *object)
-{
- delete object;
-}
-
-void wxConsoleAppTraitsBase::RemoveFromPendingDelete(wxObject * WXUNUSED(object))
-{
- // nothing to do
-}
-
// ----------------------------------------------------------------------------
// wxAppTraits
// ----------------------------------------------------------------------------
bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal)
{
#if wxDEBUG_LEVEL
- wxString msg = msgOriginal;
+ wxString msg;
#if wxUSE_STACKWALKER
-#if !defined(__WXMSW__)
- // on Unix stack frame generation may take some time, depending on the
- // size of the executable mainly... warn the user that we are working
- wxFprintf(stderr, wxT("[Debug] Generating a stack trace... please wait"));
- fflush(stderr);
-#endif
-
const wxString stackTrace = GetAssertStackTrace();
if ( !stackTrace.empty() )
- msg << _T("\n\nCall stack:\n") << stackTrace;
+ {
+ msg << wxT("\n\nCall stack:\n") << stackTrace;
+
+ wxMessageOutputDebug().Output(msg);
+ }
#endif // wxUSE_STACKWALKER
- return DoShowAssertDialog(msg);
+ return DoShowAssertDialog(msgOriginal + msg);
#else // !wxDEBUG_LEVEL
wxUnusedVar(msgOriginal);
wxString wxAppTraitsBase::GetAssertStackTrace()
{
#if wxDEBUG_LEVEL
+
+#if !defined(__WXMSW__)
+ // on Unix stack frame generation may take some time, depending on the
+ // size of the executable mainly... warn the user that we are working
+ wxFprintf(stderr, "Collecting stack trace information, please wait...");
+ fflush(stderr);
+#endif // !__WXMSW__
+
+
wxString stackTrace;
class StackDump : public wxStackWalker
{
m_stackTrace << wxString::Format
(
- _T("[%02d] "),
+ wxT("[%02d] "),
wx_truncate_cast(int, frame.GetLevel())
);
wxString name = frame.GetName();
if ( !name.empty() )
{
- m_stackTrace << wxString::Format(_T("%-40s"), name.c_str());
+ m_stackTrace << wxString::Format(wxT("%-40s"), name.c_str());
}
else
{
- m_stackTrace << wxString::Format(_T("%p"), frame.GetAddress());
+ m_stackTrace << wxString::Format(wxT("%p"), frame.GetAddress());
}
if ( frame.HasSourceLocation() )
{
- m_stackTrace << _T('\t')
+ m_stackTrace << wxT('\t')
<< frame.GetFileName()
- << _T(':')
+ << wxT(':')
<< frame.GetLine();
}
- m_stackTrace << _T('\n');
+ m_stackTrace << wxT('\n');
}
private:
const wxString& cond,
const wxString& msg)
{
+ // If this option is set, we should abort immediately when assert happens.
+ if ( wxSystemOptions::GetOptionInt("exit-on-assert") )
+ abort();
+
// FIXME MT-unsafe
static int s_bInAssert = 0;
wxAssertHandler_t wxTheAssertHandler = wxDefaultAssertHandler;
+void wxSetDefaultAssertHandler()
+{
+ wxTheAssertHandler = wxDefaultAssertHandler;
+}
+
void wxOnAssert(const wxString& file,
int line,
const wxString& func,
wxT("You can also choose [Cancel] to suppress ")
wxT("further warnings.");
- switch ( ::MessageBox(NULL, msgDlg.wx_str(), _T("wxWidgets Debug Alert"),
+ switch ( ::MessageBox(NULL, msgDlg.wx_str(), wxT("wxWidgets Debug Alert"),
MB_YESNOCANCEL | MB_ICONSTOP ) )
{
case IDYES:
//case IDNO: nothing to do
}
#else // !__WXMSW__
- wxFprintf(stderr, wxT("%s\n"), msg.c_str());
- fflush(stderr);
-
- // TODO: ask the user to enter "Y" or "N" on the console?
- wxTrap();
+ wxUnusedVar(msg);
#endif // __WXMSW__/!__WXMSW__
- // continue with the asserts
+ // continue with the asserts by default
return false;
}
// add the function name, if any
if ( !func.empty() )
- msg << _T(" in ") << func << _T("()");
+ msg << wxT(" in ") << func << wxT("()");
// and the message itself
if ( !msgUser.empty() )
{
- msg << _T(": ") << msgUser;
+ msg << wxT(": ") << msgUser;
}
else // no message given
{
- msg << _T('.');
+ msg << wxT('.');
}
#if wxUSE_THREADS
// since dialogs cannot be displayed
if ( !wxThread::IsMain() )
{
- msg += wxT(" [in child thread]");
-
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
- msg << wxT("\r\n");
- OutputDebugString(msg.wx_str());
-#else
- // send to stderr
- wxFprintf(stderr, wxT("%s\n"), msg.c_str());
- fflush(stderr);
-#endif
- // He-e-e-e-elp!! we're asserting in a child thread
- wxTrap();
+ msg += wxString::Format(" [in thread %lx]", wxThread::GetCurrentId());
}
- else
#endif // wxUSE_THREADS
+ // log the assert in any case
+ wxMessageOutputDebug().Output(msg);
+
if ( !s_bNoAsserts )
{
- // send it to the normal log destination
- wxLogDebug(_T("%s"), msg.c_str());
-
if ( traits )
{
// delegate showing assert dialog (if possible) to that class
projects / wxWidgets.git / blobdiff