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 #ifdef __GNUG__
  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
  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 }
  42
  43 // Collect up all module-derived classes, create an instance of each,
  44 // and register them.
  45 void wxModule::RegisterModules()
  46 {
  47     wxNode *node;
  48     wxClassInfo* classInfo;
  49
  50     wxClassInfo::sm_classTable->BeginFind();
  51     node = wxClassInfo::sm_classTable->Next();
  52     while (node)
  53     {
  54         classInfo = (wxClassInfo *)node->GetData();
  55         if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
  56             (classInfo != (& (wxModule::sm_classwxModule))) )
  57         {
  58             wxModule* module = (wxModule *)classInfo->CreateObject();
  59             RegisterModule(module);
  60         }
  61         node = wxClassInfo::sm_classTable->Next();
  62     }
  63 }
  64
  65 bool wxModule::InitializeModules()
  66 {
  67     // Initialize user-defined modules
  68     wxModuleList::Node *node;
  69     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  70     {
  71         if ( !node->GetData()->Init() )
  72         {
  73             // clean up already initialized modules - process in reverse order
  74             wxModuleList::Node *n;
  75             for ( n = node->GetPrevious(); n; n = n->GetPrevious() )
  76             {
  77                 n->GetData()->OnExit();
  78             }
  79
  80             return FALSE;
  81         }
  82     }
  83
  84     return TRUE;
  85 }
  86
  87 void wxModule::CleanUpModules()
  88 {
  89     // Cleanup user-defined modules
  90     wxModuleList::Node *node;
  91     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  92     {
  93         node->GetData()->Exit();
  94     }
  95
  96     m_modules.DeleteContents(TRUE);
  97     m_modules.Clear();
  98 }
  99