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