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