src/common/module.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/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
  21 #ifndef WX_PRECOMP
  22     #include "wx/hash.h"
  23     #include "wx/intl.h"
  24     #include "wx/log.h"
  25 #endif
  26
  27 #include "wx/listimpl.cpp"
  28
  29 #define TRACE_MODULE _T("module")
  30
  31 WX_DEFINE_LIST(wxModuleList)
  32
  33 IMPLEMENT_CLASS(wxModule, wxObject)
  34
  35 wxModuleList wxModule::m_modules;
  36
  37 void wxModule::RegisterModule(wxModule* module)
  38 {
  39     m_modules.Append(module);
  40 }
  41
  42 void wxModule::UnregisterModule(wxModule* module)
  43 {
  44     m_modules.DeleteObject(module);
  45     delete module;
  46 }
  47
  48 // Collect up all module-derived classes, create an instance of each,
  49 // and register them.
  50 void wxModule::RegisterModules()
  51 {
  52     wxHashTable::compatibility_iterator node;
  53     wxClassInfo* classInfo;
  54
  55     wxClassInfo::sm_classTable->BeginFind();
  56     node = wxClassInfo::sm_classTable->Next();
  57     while (node)
  58     {
  59         classInfo = (wxClassInfo *)node->GetData();
  60         if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
  61             (classInfo != (& (wxModule::ms_classInfo))) )
  62         {
  63             wxLogTrace(TRACE_MODULE, wxT("Registering module %s"),
  64                        classInfo->GetClassName());
  65             wxModule* module = (wxModule *)classInfo->CreateObject();
  66             RegisterModule(module);
  67         }
  68         node = wxClassInfo::sm_classTable->Next();
  69     }
  70 }
  71
  72 bool wxModule::InitializeModules()
  73 {
  74     // Initialize user-defined modules
  75     wxModuleList::compatibility_iterator node;
  76     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  77     {
  78         wxModule *module = node->GetData();
  79         if ( !module->Init() )
  80         {
  81             wxLogError(_("Module \"%s\" initialization failed"),
  82                        module->GetClassInfo()->GetClassName());
  83
  84             // clean up already initialized modules - process in reverse order
  85             wxModuleList::compatibility_iterator n;
  86             for ( n = node->GetPrevious(); n; n = n->GetPrevious() )
  87             {
  88                 n->GetData()->OnExit();
  89             }
  90
  91             return false;
  92         }
  93     }
  94
  95     return true;
  96 }
  97
  98 void wxModule::CleanUpModules()
  99 {
 100     // Cleanup user-defined modules
 101     wxModuleList::compatibility_iterator node;
 102     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
 103     {
 104         wxLogTrace(TRACE_MODULE, wxT("Cleanup module %s"),
 105                    node->GetData()->GetClassInfo()->GetClassName());
 106         node->GetData()->Exit();
 107     }
 108
 109     WX_CLEAR_LIST(wxModuleList, m_modules);
 110 }