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/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2008 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/
#ifndef CPOINTERS_H
#define CPOINTERS_H
#include "backend/managers/clanguagemgr.h"
class CSwordBackend;
class CLanguageMgr;
class CDisplayTemplateMgr;
namespace InfoDisplay {
class CInfoDisplay;
}
/** Holds the pointers to important classes like modules, backend etc.
*/
class CPointers {
protected:
friend class BibleTime; //BibleTime may initialize this object
friend class BibleTimeApp; //BibleTimeApp may initialize this object
friend int main(int argc, char* argv[]); //main may set the printer
//Empty virtuaual destructor
virtual ~CPointers() {}
/** Set the backend.
* @param backend Pointer to the new application-wide Sword backend
*/
static void setBackend(CSwordBackend* const backend);
/** Set the info display.
* @param iDisplay The pointer to the new info display.
*/
static void setInfoDisplay(InfoDisplay::CInfoDisplay* const iDisplay);
/** Delete the backend. Should be called by BibleTimeApp,
* because the backend should be deleted as late as possible.
*/
static void deleteBackend();
/** Delete the printer. Should be called by BibleTimeApp,
* because the printer should be deleted as late as possible.
*/
static void deletePrinter();
/** Delete the language manager. Should be called by BibleTimeApp,
* because the language manager should be deleted as late as possible.
*/
static void deleteLanguageMgr();
/** Delete the display template manager. Should be called by BibleTimeApp,
* because the template manager should be deleted as late as possible.
*/
static void deleteDisplayTemplateMgr();
public: // Public methods
/** Returns a pointer to the backend
* @return The backend pointer.
*/
inline static CSwordBackend* backend();
/** Returns a pointer to the language manager
* @return The language manager
*/
inline static CLanguageMgr* languageMgr();
/** Returns a pointer to the info display.
* @return The backend pointer.
*/
inline static InfoDisplay::CInfoDisplay* infoDisplay();
/** Returns a pointer to the application's display template manager
* @return The backend pointer.
*/
static CDisplayTemplateMgr* displayTemplateManager();
struct PointerCache {
PointerCache() {
backend = 0;
langMgr = 0;
infoDisplay = 0;
displayTemplateMgr = 0;
};
CSwordBackend* backend;
CLanguageMgr* langMgr;
InfoDisplay::CInfoDisplay* infoDisplay;
CDisplayTemplateMgr* displayTemplateMgr;
};
};
extern CPointers::PointerCache m_pointerCache;
/** Returns a pointer to the backend ... */
inline CSwordBackend* CPointers::backend() {
return m_pointerCache.backend;
}
/** Returns a pointer to the backend ... */
inline CLanguageMgr* CPointers::languageMgr() {
if (!m_pointerCache.langMgr) {
m_pointerCache.langMgr = new CLanguageMgr();
}
return m_pointerCache.langMgr;
}
/** Returns a pointer to the printer object. */
inline InfoDisplay::CInfoDisplay* CPointers::infoDisplay() {
return m_pointerCache.infoDisplay;
}
#endif
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