dolphin/Externals/wxWidgets/include/wx/module.h

104 lines
3.2 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/module.h
// Purpose: Modules handling
// Author: Wolfram Gloger/adapted by Guilhem Lavaux
// Modified by:
// Created: 04/11/98
// RCS-ID: $Id: module.h 53135 2008-04-12 02:31:04Z VZ $
// Copyright: (c) Wolfram Gloger and Guilhem Lavaux
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MODULE_H_
#define _WX_MODULE_H_
#include "wx/object.h"
#include "wx/list.h"
#include "wx/dynarray.h"
// declare a linked list of modules
class WXDLLIMPEXP_FWD_BASE wxModule;
WX_DECLARE_USER_EXPORTED_LIST(wxModule, wxModuleList, WXDLLIMPEXP_BASE);
// and an array of class info objects
WX_DEFINE_USER_EXPORTED_ARRAY_PTR(wxClassInfo *, wxArrayClassInfo,
class WXDLLIMPEXP_BASE);
// declaring a class derived from wxModule will automatically create an
// instance of this class on program startup, call its OnInit() method and call
// OnExit() on program termination (but only if OnInit() succeeded)
class WXDLLIMPEXP_BASE wxModule : public wxObject
{
public:
wxModule() {}
virtual ~wxModule() {}
// if module init routine returns false the application
// will fail to startup
bool Init() { return OnInit(); }
void Exit() { OnExit(); }
// Override both of these
// called on program startup
virtual bool OnInit() = 0;
// called just before program termination, but only if OnInit()
// succeeded
virtual void OnExit() = 0;
static void RegisterModule(wxModule *module);
static void RegisterModules();
static bool InitializeModules();
static void CleanUpModules() { DoCleanUpModules(m_modules); }
// used by wxObjectLoader when unloading shared libs's
static void UnregisterModule(wxModule *module);
protected:
static wxModuleList m_modules;
// the function to call from constructor of a deriving class add module
// dependency which will be initialized before the module and unloaded
// after that
void AddDependency(wxClassInfo *dep)
{
wxCHECK_RET( dep, _T("NULL module dependency") );
m_dependencies.Add(dep);
}
private:
// initialize module and Append it to initializedModules list recursively
// calling itself to satisfy module dependencies if needed
static bool
DoInitializeModule(wxModule *module, wxModuleList &initializedModules);
// cleanup the modules in the specified list (which may not contain all
// modules if we're called during initialization because not all modules
// could be initialized) and also empty m_modules itself
static void DoCleanUpModules(const wxModuleList& modules);
// module dependencies: contains
wxArrayClassInfo m_dependencies;
// used internally while initiliazing/cleaning up modules
enum
{
State_Registered, // module registered but not initialized yet
State_Initializing, // we're initializing this module but not done yet
State_Initialized // module initialized successfully
} m_state;
DECLARE_CLASS(wxModule)
};
#endif // _WX_MODULE_H_