src/common/module.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        module.cpp
   3 // Purpose:     Modules initialization/destruction
   4 // Author:      Wolfram Gloger/adapted by Guilhem Lavaux
   5 // Modified by:
   6 // Created:     04/11/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Wolfram Gloger and Guilhem Lavaux
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #include "wx/module.h"
  20 #include "wx/hash.h"
  21 #include "wx/intl.h"
  22 #include "wx/log.h"
  23 #include "wx/listimpl.cpp"
  24
  25 #define TRACE_MODULE _T("module")
  26
  27 WX_DEFINE_LIST(wxModuleList)
  28
  29 IMPLEMENT_CLASS(wxModule, wxObject)
  30
  31 wxModuleList wxModule::m_modules;
  32
  33 void wxModule::RegisterModule(wxModule* module)
  34 {
  35     m_modules.Append(module);
  36 }
  37
  38 void wxModule::UnregisterModule(wxModule* module)
  39 {
  40     m_modules.DeleteObject(module);
  41     delete module;
  42 }
  43
  44 // Collect up all module-derived classes, create an instance of each,
  45 // and register them.
  46 void wxModule::RegisterModules()
  47 {
  48     wxHashTable::compatibility_iterator node;
  49     wxClassInfo* classInfo;
  50
  51     wxClassInfo::sm_classTable->BeginFind();
  52     node = wxClassInfo::sm_classTable->Next();
  53     while (node)
  54     {
  55         classInfo = (wxClassInfo *)node->GetData();
  56         if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
  57             (classInfo != (& (wxModule::ms_classInfo))) )
  58         {
  59             wxLogTrace(TRACE_MODULE, wxT("Registering module %s"),
  60                        classInfo->GetClassName());
  61             wxModule* module = (wxModule *)classInfo->CreateObject();
  62             RegisterModule(module);
  63         }
  64         node = wxClassInfo::sm_classTable->Next();
  65     }
  66 }
  67
  68 bool wxModule::InitializeModules()
  69 {
  70     // Initialize user-defined modules
  71     wxModuleList::compatibility_iterator node;
  72     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  73     {
  74         wxModule *module = node->GetData();
  75         if ( !module->Init() )
  76         {
  77             wxLogError(_("Module \"%s\" initialization failed"),
  78                        module->GetClassInfo()->GetClassName());
  79
  80             // clean up already initialized modules - process in reverse order
  81             wxModuleList::compatibility_iterator n;
  82             for ( n = node->GetPrevious(); n; n = n->GetPrevious() )
  83             {
  84                 n->GetData()->OnExit();
  85             }
  86
  87             return false;
  88         }
  89     }
  90
  91     return true;
  92 }
  93
  94 void wxModule::CleanUpModules()
  95 {
  96     // Cleanup user-defined modules
  97     wxModuleList::compatibility_iterator node;
  98     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  99     {
 100         wxLogTrace(TRACE_MODULE, wxT("Cleanup module %s"),
 101                    node->GetData()->GetClassInfo()->GetClassName());
 102         node->GetData()->Exit();
 103     }
 104
 105     WX_CLEAR_LIST(wxModuleList, m_modules);
 106 }
 107