Import r67258 of the wxWidgets trunk, which I expect will before

long become wxWidgets 2.9.2, which in turn is expected to be the
last 2.9 release before the 3.0 stable release.

Since the full wxWidgets distribution is rather large, I have
imported only the parts that we use, on a subdirectory basis:

art
include/wx/*.*
include/wx/aui
include/wx/cocoa
include/wx/generic
include/wx/gtk
include/wx/meta
include/wx/msw
include/wx/osx
include/wx/persist
include/wx/private
include/wx/protocol
include/wx/unix
src/aui
src/common
src/generic
src/gtk
src/msw
src/osx
src/unix


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7380 8ced0084-cf51-0410-be5f-012b33b47a6e

Externals/wxWidgets3/src/common/module.cpp

@@ -0,0 +1,225 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/common/module.cpp
+// Purpose:     Modules initialization/destruction
+// Author:      Wolfram Gloger/adapted by Guilhem Lavaux
+// Modified by:
+// Created:     04/11/98
+// RCS-ID:      $Id: module.cpp 66630 2011-01-07 17:49:18Z SC $
+// Copyright:   (c) Wolfram Gloger and Guilhem Lavaux
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "wx/module.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/hash.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+#endif
+
+#include "wx/listimpl.cpp"
+
+#define TRACE_MODULE wxT("module")
+
+WX_DEFINE_LIST(wxModuleList)
+
+wxIMPLEMENT_ABSTRACT_CLASS(wxModule, wxObject)
+
+wxModuleList wxModule::m_modules;
+
+void wxModule::RegisterModule(wxModule* module)
+{
+    module->m_state = State_Registered;
+    m_modules.Append(module);
+}
+
+void wxModule::UnregisterModule(wxModule* module)
+{
+    m_modules.DeleteObject(module);
+    delete module;
+}
+
+// Collect up all module-derived classes, create an instance of each,
+// and register them.
+void wxModule::RegisterModules()
+{
+    for (wxClassInfo::const_iterator it  = wxClassInfo::begin_classinfo(),
+                                     end = wxClassInfo::end_classinfo();
+         it != end; ++it)
+    {
+        const wxClassInfo* classInfo = *it;
+
+        if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
+             (classInfo != (& (wxModule::ms_classInfo))) )
+        {
+            wxLogTrace(TRACE_MODULE, wxT("Registering module %s"),
+                       classInfo->GetClassName());
+            wxModule* module = (wxModule *)classInfo->CreateObject();
+            wxModule::RegisterModule(module);
+        }
+    }
+}
+
+bool wxModule::DoInitializeModule(wxModule *module,
+                                  wxModuleList &initializedModules)
+{
+    if ( module->m_state == State_Initializing )
+    {
+        wxLogError(_("Circular dependency involving module \"%s\" detected."),
+                   module->GetClassInfo()->GetClassName());
+        return false;
+    }
+
+    module->m_state = State_Initializing;
+
+    // translate named dependencies to the normal ones first
+    if ( !module->ResolveNamedDependencies() )
+      return false;
+
+    const wxArrayClassInfo& dependencies = module->m_dependencies;
+
+    // satisfy module dependencies by loading them before the current module
+    for ( unsigned int i = 0; i < dependencies.size(); ++i )
+    {
+        wxClassInfo * cinfo = dependencies[i];
+
+        // Check if the module is already initialized
+        wxModuleList::compatibility_iterator node;
+        for ( node = initializedModules.GetFirst(); node; node = node->GetNext() )
+        {
+            if ( node->GetData()->GetClassInfo() == cinfo )
+                break;
+        }
+
+        if ( node )
+        {
+            // this dependency is already initialized, nothing to do
+            continue;
+        }
+
+        // find the module in the registered modules list
+        for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
+        {
+            wxModule *moduleDep = node->GetData();
+            if ( moduleDep->GetClassInfo() == cinfo )
+            {
+                if ( !DoInitializeModule(moduleDep, initializedModules ) )
+                {
+                    // failed to initialize a dependency, so fail this one too
+                    return false;
+                }
+
+                break;
+            }
+        }
+
+        if ( !node )
+        {
+            wxLogError(_("Dependency \"%s\" of module \"%s\" doesn't exist."),
+                       cinfo->GetClassName(),
+                       module->GetClassInfo()->GetClassName());
+            return false;
+        }
+    }
+
+    if ( !module->Init() )
+    {
+        wxLogError(_("Module \"%s\" initialization failed"),
+                   module->GetClassInfo()->GetClassName());
+        return false;
+    }
+
+    wxLogTrace(TRACE_MODULE, wxT("Module \"%s\" initialized"),
+               module->GetClassInfo()->GetClassName());
+
+    module->m_state = State_Initialized;
+    initializedModules.Append(module);
+
+    return true;
+}
+
+// Initialize user-defined modules
+bool wxModule::InitializeModules()
+{
+    wxModuleList initializedModules;
+
+    for ( wxModuleList::compatibility_iterator node = m_modules.GetFirst();
+          node;
+          node = node->GetNext() )
+    {
+        wxModule *module = node->GetData();
+
+        // the module could have been already initialized as dependency of
+        // another one
+        if ( module->m_state == State_Registered )
+        {
+            if ( !DoInitializeModule( module, initializedModules ) )
+            {
+                // failed to initialize all modules, so clean up the already
+                // initialized ones
+                DoCleanUpModules(initializedModules);
+
+                return false;
+            }
+        }
+    }
+
+    // remember the real initialisation order
+    m_modules = initializedModules;
+
+    return true;
+}
+
+// Clean up all currently initialized modules
+void wxModule::DoCleanUpModules(const wxModuleList& modules)
+{
+    // cleanup user-defined modules in the reverse order compared to their
+    // initialization -- this ensures that dependencies are respected
+    for ( wxModuleList::compatibility_iterator node = modules.GetLast();
+          node;
+          node = node->GetPrevious() )
+    {
+        wxLogTrace(TRACE_MODULE, wxT("Cleanup module %s"),
+                   node->GetData()->GetClassInfo()->GetClassName());
+
+        wxModule * module = node->GetData();
+
+        wxASSERT_MSG( module->m_state == State_Initialized,
+                        wxT("not initialized module being cleaned up") );
+
+        module->Exit();
+        module->m_state = State_Registered;
+    }
+
+    // clear all modules, even the non-initialized ones
+    WX_CLEAR_LIST(wxModuleList, m_modules);
+}
+
+bool wxModule::ResolveNamedDependencies()
+{
+    // first resolve required dependencies
+    for ( size_t i = 0; i < m_namedDependencies.size(); ++i )
+    {
+        wxClassInfo *info = wxClassInfo::FindClass(m_namedDependencies[i]);
+
+        if ( !info )
+        {
+            // required dependency not found
+            return false;
+        }
+
+        // add it even if it is not derived from wxModule because
+        // DoInitializeModule() will make sure a module with the same class
+        // info exists and fail if it doesn't
+        m_dependencies.Add(info);
+    }
+
+    return true;
+}