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 #ifdef __SALFORDC__
  28 void wxwxModuleListNode::DeleteData()
  29 {
  30     delete (_WX_LIST_ITEM_TYPE_wxModuleList *)GetData();
  31 }
  32 #else
  33 WX_DEFINE_LIST(wxModuleList);
  34 #endif
  35
  36 IMPLEMENT_CLASS(wxModule, wxObject)
  37
  38 wxModuleList wxModule::m_modules;
  39
  40 void wxModule::RegisterModule(wxModule* module)
  41 {
  42     m_modules.Append(module);
  43 }
  44
  45 void wxModule::UnregisterModule(wxModule* module)
  46 {
  47     m_modules.DeleteObject(module);
  48 }
  49
  50 // Collect up all module-derived classes, create an instance of each,
  51 // and register them.
  52 void wxModule::RegisterModules()
  53 {
  54     wxNode *node;
  55     wxClassInfo* classInfo;
  56
  57     wxClassInfo::sm_classTable->BeginFind();
  58     node = wxClassInfo::sm_classTable->Next();
  59     while (node)
  60     {
  61         classInfo = (wxClassInfo *)node->Data();
  62         if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
  63             (classInfo != (& (wxModule::sm_classwxModule))) )
  64         {
  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::Node *node;
  76     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  77     {
  78         if ( !node->GetData()->Init() )
  79         {
  80             // clean up already initialized modules - process in reverse order
  81             wxModuleList::Node *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::Node *node;
  98     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  99     {
 100         node->GetData()->Exit();
 101     }
 102
 103     m_modules.DeleteContents(TRUE);
 104     m_modules.Clear();
 105 }
 106