include/wx/dynlib.h

   1 #ifndef _WX_DYNLIB_H__
   2 #define _WX_DYNLIB_H__
   3
   4 #ifdef __GNUG__
   5 #pragma interface
   6 #endif
   7
   8 #include <wx/string.h>
   9 #include <wx/list.h>
  10 #include <wx/dynarray.h>
  11
  12 // ---------------------------------------------------------------------------
  13 // Some more info on a class
  14
  15 typedef struct {
  16   wxClassInfo *class_info;
  17   wxString path;
  18 } wxClassLibInfo;
  19
  20 // ---------------------------------------------------------------------------
  21 // Useful arrays
  22
  23 WX_DEFINE_ARRAY(wxClassInfo *, wxArrayClassInfo);
  24 WX_DEFINE_ARRAY(wxClassLibInfo *, wxArrayClassLibInfo);
  25
  26 // ---------------------------------------------------------------------------
  27 // wxClassLibrary
  28
  29 class wxClassLibrary {
  30 protected:
  31   wxArrayClassLibInfo m_list;
  32 public:
  33   wxClassLibrary(void);
  34   ~wxClassLibrary(void);
  35
  36   // Dynamic (un)register a (new) class in the database
  37   void RegisterClass(wxClassInfo *class_info, const wxString& path);
  38   void UnregisterClass(wxClassInfo *class_info);
  39
  40   // Fetch all infos whose name matches the string (wildcards allowed)
  41   bool FetchInfos(const wxString& path, wxArrayClassLibInfo& infos);
  42
  43   // Create all objects whose name matches the string (wildcards allowed)
  44   bool CreateObjects(const wxString& path, wxArrayClassInfo& objs);
  45
  46   // Create one object using the EXACT name
  47   wxObject *CreateObject(const wxString& path);
  48 };
  49
  50 // ---------------------------------------------------------------------------
  51 // wxLibrary
  52
  53 class wxLibrary: public wxObject {
  54 protected:
  55   wxClassLibrary *m_liblist;
  56   void *m_handle;
  57 public:
  58   wxLibrary(void *handle);
  59   ~wxLibrary(void);
  60
  61   // Get a symbol from the dynamic library
  62   void *GetSymbol(const wxString& symbname);
  63
  64   // Create the object whose classname is "name"
  65   wxObject *CreateObject(const wxString& name);
  66
  67   wxClassLibrary *ClassLib() const;
  68 };
  69
  70 // ---------------------------------------------------------------------------
  71 // wxLibraries
  72
  73 class wxLibraries {
  74 protected:
  75   wxList m_loaded;
  76 public:
  77   wxLibraries(void);
  78   ~wxLibraries(void);
  79
  80   wxLibrary *LoadLibrary(const wxString& name);
  81   wxObject *CreateObject(const wxString& name);
  82 };
  83
  84 // ---------------------------------------------------------------------------
  85 // Global variables
  86
  87 extern wxLibraries wxTheLibraries;
  88
  89 // ---------------------------------------------------------------------------
  90 // Interesting defines
  91
  92 #define WXDLL_ENTRY_FUNCTION() extern "C" wxClassLibrary *GetClassList()
  93 #define WXDLL_EXIT_FUNCTION(param) extern "C" void FreeClassList(wxClassLibrary *param)
  94
  95 #endif