vcl/source/app/idlemgr.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_vcl.hxx"
  33 #include <tools/list.hxx>
  34 #include <vcl/idlemgr.hxx>
  35 #include <vcl/svapp.hxx>
  36
  37 // =======================================================================
  38
  39 struct ImplIdleData
  40 {
  41     Link        maIdleHdl;
  42     USHORT      mnPriority;
  43     BOOL        mbTimeout;
  44 };
  45
  46 DECLARE_LIST( ImplIdleList, ImplIdleData* )
  47
  48 #define IMPL_IDLETIMEOUT         350
  49
  50 // =======================================================================
  51
  52 ImplIdleMgr::ImplIdleMgr()
  53 {
  54     mpIdleList  = new ImplIdleList( 8, 8, 8 );
  55
  56     maTimer.SetTimeout( IMPL_IDLETIMEOUT );
  57     maTimer.SetTimeoutHdl( LINK( this, ImplIdleMgr, TimeoutHdl ) );
  58 }
  59
  60 // -----------------------------------------------------------------------
  61
  62 ImplIdleMgr::~ImplIdleMgr()
  63 {
  64     // Liste loeschen
  65     ImplIdleData* pIdleData = mpIdleList->First();
  66     while ( pIdleData )
  67     {
  68         delete pIdleData;
  69         pIdleData = mpIdleList->Next();
  70     }
  71
  72     delete mpIdleList;
  73 }
  74
  75 // -----------------------------------------------------------------------
  76
  77 BOOL ImplIdleMgr::InsertIdleHdl( const Link& rLink, USHORT nPriority )
  78 {
  79     ULONG           nPos = LIST_APPEND;
  80     ImplIdleData*   pIdleData = mpIdleList->First();
  81     while ( pIdleData )
  82     {
  83         // Wenn Link schon existiert, dann gebe FALSE zurueck
  84         if ( pIdleData->maIdleHdl == rLink )
  85             return FALSE;
  86
  87         // Nach Prioritaet sortieren
  88         if ( nPriority <= pIdleData->mnPriority )
  89             nPos = mpIdleList->GetCurPos();
  90
  91         // Schleife nicht beenden, da noch
  92         // geprueft werden muss, ob sich der Link
  93         // schon in der Liste befindet
  94
  95         pIdleData = mpIdleList->Next();
  96     }
  97
  98     pIdleData               = new ImplIdleData;
  99     pIdleData->maIdleHdl    = rLink;
 100     pIdleData->mnPriority   = nPriority;
 101     pIdleData->mbTimeout    = FALSE;
 102     mpIdleList->Insert( pIdleData, nPos );
 103
 104     // Wenn Timer noch nicht gestartet ist, dann starten
 105     if ( !maTimer.IsActive() )
 106         maTimer.Start();
 107
 108     return TRUE;
 109 }
 110
 111 // -----------------------------------------------------------------------
 112
 113 void ImplIdleMgr::RemoveIdleHdl( const Link& rLink )
 114 {
 115     ImplIdleData* pIdleData = mpIdleList->First();
 116     while ( pIdleData )
 117     {
 118         if ( pIdleData->maIdleHdl == rLink )
 119         {
 120             mpIdleList->Remove();
 121             delete pIdleData;
 122             break;
 123         }
 124
 125         pIdleData = mpIdleList->Next();
 126     }
 127
 128     // keine Handdler mehr da
 129     if ( !mpIdleList->Count() )
 130         maTimer.Stop();
 131 }
 132
 133 // -----------------------------------------------------------------------
 134
 135 IMPL_LINK( ImplIdleMgr, TimeoutHdl, Timer*, EMPTYARG )
 136 {
 137     ImplIdleData* pIdleData = mpIdleList->First();
 138     while ( pIdleData )
 139     {
 140         if ( !pIdleData->mbTimeout )
 141         {
 142             pIdleData->mbTimeout = TRUE;
 143             pIdleData->maIdleHdl.Call( GetpApp() );
 144             // Kann im Handler entfernt worden sein
 145             if ( mpIdleList->GetPos( pIdleData ) != LIST_ENTRY_NOTFOUND )
 146                 pIdleData->mbTimeout = FALSE;
 147         }
 148
 149         pIdleData = mpIdleList->Next();
 150     }
 151
 152     return 0;
 153 }