Dario Sassi
950a2b90af
- modifica radicale della gestione dei selezionati (ora lista parallela su oggetti di GDB).
97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
//----------------------------------------------------------------------------
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// EgalTech 2014-2014
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//----------------------------------------------------------------------------
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// File : SelManager.h Data : 19.05.14 Versione : 1.5e7
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// Contenuto : Dichiarazione e implementazione della classe SelManager.
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//
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//
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//
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// Modifiche : 19.03.14 DS Creazione modulo.
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// 19.05.14 DS La AddObj non controlla eventuale precedente presenza
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// oggetto in lista, perchè già si fa tramite flag di GdbObj.
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//
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//----------------------------------------------------------------------------
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#pragma once
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class GdbObj ;
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//----------------------------------------------------------------------------
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class SelManager
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{
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public :
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SelManager( void)
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: m_nCount( 0), m_pFirst( nullptr), m_pLast( nullptr), m_pCurr( nullptr) {}
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int GetSize( void) const
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{ return m_nCount ; }
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bool AddObj( GdbObj* pGObj)
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{ if ( pGObj == nullptr)
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return false ;
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if ( m_pLast == nullptr) {
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m_pLast = pGObj ;
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m_pFirst = pGObj ;
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pGObj->m_pSelNext = nullptr ;
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pGObj->m_pSelPrev = nullptr ;
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}
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else {
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pGObj->m_pSelNext = nullptr ;
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pGObj->m_pSelPrev = m_pLast ;
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m_pLast->m_pSelNext = pGObj ;
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m_pLast = pGObj ;
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}
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++ m_nCount ;
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return true ; }
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bool RemoveObj( GdbObj* pGObj)
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{ if ( pGObj == nullptr)
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return false ;
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if ( m_pCurr == pGObj)
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m_pCurr = nullptr ;
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if ( m_pFirst == pGObj && m_pLast == pGObj) {
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m_pFirst = nullptr ;
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m_pLast = nullptr ;
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}
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else if ( m_pFirst == pGObj) {
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m_pFirst = pGObj->m_pSelNext ;
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if ( m_pFirst != nullptr)
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m_pFirst->m_pSelPrev = nullptr ;
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}
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else if ( m_pLast == pGObj) {
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m_pLast = pGObj->m_pSelPrev ;
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if ( m_pLast != nullptr)
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m_pLast->m_pSelNext = nullptr ;
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}
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else {
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if ( pGObj->m_pSelNext == nullptr && pGObj->m_pSelPrev == nullptr)
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return false ;
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if ( pGObj->m_pSelPrev != nullptr)
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pGObj->m_pSelPrev->m_pSelNext = pGObj->m_pSelNext ;
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if ( pGObj->m_pSelNext != nullptr)
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pGObj->m_pSelNext->m_pSelPrev = pGObj->m_pSelPrev ;
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}
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pGObj->m_pSelNext = nullptr ;
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pGObj->m_pSelPrev = nullptr ;
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-- m_nCount ;
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return true ; }
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GdbObj* GetFirstObj( void) const
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{ m_pCurr = m_pFirst ;
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return m_pCurr ; }
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GdbObj* GetNextObj( void) const
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{ if ( m_pCurr != nullptr)
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m_pCurr = m_pCurr->m_pSelNext ;
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return m_pCurr ; }
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GdbObj* GetLastObj( void) const
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{ m_pCurr = m_pLast ;
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return m_pCurr ; }
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GdbObj* GetPrevObj( void) const
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{ if ( m_pCurr != nullptr)
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m_pCurr = m_pCurr->m_pSelPrev ;
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return m_pCurr ; }
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private :
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int m_nCount ;
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GdbObj* m_pFirst ;
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GdbObj* m_pLast ;
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mutable GdbObj* m_pCurr ;
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} ;
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