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121 lines
3.2 KiB
121 lines
3.2 KiB
/*********
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*
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* This file is part of BibleTime's source code, http://www.bibletime.info/.
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*
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* Copyright 1999-2006 by the BibleTime developers.
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* The BibleTime source code is licensed under the GNU General Public License version 2.0.
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*
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**********/
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#ifndef CPOINTERS_H
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#define CPOINTERS_H
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//BibleTime includes
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#include "backend/clanguagemgr.h"
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#include "frontend/cinfodisplay.h"
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class CSwordBackend;
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class CLanguageMgr;
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class CDisplayTemplateMgr;
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namespace InfoDisplay {
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class CInfoDisplay;
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}
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/** Holds the pointers to important classes like modules, backend etc.
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* @author The BibleTime team
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*/
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class CPointers {
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protected:
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friend class BibleTime; //BibleTime may initialize this object
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friend class BibleTimeApp; //BibleTimeApp may initialize this object
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friend int main(int argc, char* argv[]); //main may set the printer
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//Empty virtuaual destructor
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virtual ~CPointers() {}
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/** Set the backend.
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* @param backend Pointer to the new application-wide Sword backend
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*/
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static void setBackend(CSwordBackend* const backend);
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/** Set the info display.
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* @param iDisplay The pointer to the new info display.
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*/
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static void setInfoDisplay(InfoDisplay::CInfoDisplay* const iDisplay);
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/** Delete the backend. Should be called by BibleTimeApp,
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* because the backend should be deleted as late as possible.
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*/
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static void deleteBackend();
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/** Delete the printer. Should be called by BibleTimeApp,
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* because the printer should be deleted as late as possible.
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*/
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static void deletePrinter();
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/** Delete the language manager. Should be called by BibleTimeApp,
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* because the language manager should be deleted as late as possible.
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*/
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static void deleteLanguageMgr();
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/** Delete the display template manager. Should be called by BibleTimeApp,
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* because the template manager should be deleted as late as possible.
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*/
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static void deleteDisplayTemplateMgr();
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public: // Public methods
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/** Returns a pointer to the backend
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* @return The backend pointer.
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*/
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inline static CSwordBackend* const backend();
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/** Returns a pointer to the language manager
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* @return The language manager
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*/
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inline static CLanguageMgr* const languageMgr();
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/** Returns a pointer to the info display.
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* @return The backend pointer.
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*/
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inline static InfoDisplay::CInfoDisplay* const infoDisplay();
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/** Returns a pointer to the application's display template manager
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* @return The backend pointer.
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*/
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static CDisplayTemplateMgr* const displayTemplateManager();
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struct PointerCache {
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PointerCache() {
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backend = 0;
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langMgr = 0;
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infoDisplay = 0;
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displayTemplateMgr = 0;
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};
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CSwordBackend* backend;
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CLanguageMgr* langMgr;
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InfoDisplay::CInfoDisplay* infoDisplay;
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CDisplayTemplateMgr* displayTemplateMgr;
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};
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};
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extern CPointers::PointerCache m_pointerCache;
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/** Returns a pointer to the backend ... */
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inline CSwordBackend* const CPointers::backend() {
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return m_pointerCache.backend;
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}
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/** Returns a pointer to the backend ... */
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inline CLanguageMgr* const CPointers::languageMgr() {
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if (!m_pointerCache.langMgr) {
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m_pointerCache.langMgr = new CLanguageMgr();
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}
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return m_pointerCache.langMgr;
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}
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/** Returns a pointer to the printer object. */
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inline InfoDisplay::CInfoDisplay* const CPointers::infoDisplay() {
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return m_pointerCache.infoDisplay;
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}
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#endif
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