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/intl.h"
  26 #include "wx/log.h"
  27 #include "wx/listimpl.cpp"
  28
  29 WX_DEFINE_LIST(wxModuleList);
  30
  31 IMPLEMENT_CLASS(wxModule, wxObject)
  32
  33 wxModuleList wxModule::m_modules;
  34
  35 void wxModule::RegisterModule(wxModule* module)
  36 {
  37     m_modules.Append(module);
  38 }
  39
  40 void wxModule::UnregisterModule(wxModule* module)
  41 {
  42     m_modules.DeleteObject(module);
  43     delete module;
  44 }
  45
  46 // Collect up all module-derived classes, create an instance of each,
  47 // and register them.
  48 void wxModule::RegisterModules()
  49 {
  50     wxHashTable::compatibility_iterator node;
  51     wxClassInfo* classInfo;
  52
  53     wxClassInfo::sm_classTable->BeginFind();
  54     node = wxClassInfo::sm_classTable->Next();
  55     while (node)
  56     {
  57         classInfo = (wxClassInfo *)node->GetData();
  58         if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
  59             (classInfo != (& (wxModule::ms_classInfo))) )
  60         {
  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         node->GetData()->Exit();
 101     }
 102
 103     WX_CLEAR_LIST(wxModuleList, m_modules);
 104 }
 105