chart2/source/controller/main/UndoGuard.cxx

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  28
  29
  30 #include "UndoGuard.hxx"
  31 #include "ChartModelClone.hxx"
  32 #include "UndoActions.hxx"
  33
  34 #include <com/sun/star/container/XChild.hpp>
  35
  36 #include <tools/diagnose_ex.h>
  37
  38 using namespace ::com::sun::star;
  39
  40 using ::com::sun::star::uno::Reference;
  41 using ::com::sun::star::uno::Sequence;
  42 using ::rtl::OUString;
  43
  44 namespace chart
  45 {
  46
  47 //-----------------------------------------------------------------------------
  48
  49 UndoGuard::UndoGuard( const OUString& i_undoString, const uno::Reference< document::XUndoManager > & i_undoManager,
  50                                const ModelFacet i_facet )
  51     :m_xChartModel( i_undoManager->getParent(), uno::UNO_QUERY_THROW )
  52     ,m_xUndoManager( i_undoManager )
  53     ,m_pDocumentSnapshot()
  54     ,m_aUndoString( i_undoString )
  55     ,m_bActionPosted( false )
  56 {
  57     m_pDocumentSnapshot.reset( new ChartModelClone( m_xChartModel, i_facet ) );
  58 }
  59
  60 //-----------------------------------------------------------------------------
  61
  62 UndoGuard::~UndoGuard()
  63 {
  64     if ( !!m_pDocumentSnapshot )
  65         discardSnapshot();
  66 }
  67
  68 //-----------------------------------------------------------------------------
  69
  70 void UndoGuard::commit()
  71 {
  72     if ( !m_bActionPosted && !!m_pDocumentSnapshot )
  73     {
  74         try
  75         {
  76             const Reference< document::XUndoAction > xAction( new impl::UndoElement( m_aUndoString, m_xChartModel, m_pDocumentSnapshot ) );
  77             m_pDocumentSnapshot.reset();    // don't dispose, it's data went over to the UndoElement
  78             m_xUndoManager->addUndoAction( xAction );
  79         }
  80         catch( const uno::Exception& )
  81         {
  82             DBG_UNHANDLED_EXCEPTION();
  83         }
  84     }
  85     m_bActionPosted = true;
  86 }
  87
  88 //-----------------------------------------------------------------------------
  89
  90 void UndoGuard::rollback()
  91 {
  92     ENSURE_OR_RETURN_VOID( !!m_pDocumentSnapshot, "no snapshot!" );
  93     m_pDocumentSnapshot->applyToModel( m_xChartModel );
  94     discardSnapshot();
  95 }
  96
  97 //-----------------------------------------------------------------------------
  98 void UndoGuard::discardSnapshot()
  99 {
 100     ENSURE_OR_RETURN_VOID( !!m_pDocumentSnapshot, "no snapshot!" );
 101     m_pDocumentSnapshot->dispose();
 102     m_pDocumentSnapshot.reset();
 103 }
 104
 105 //-----------------------------------------------------------------------------
 106
 107 UndoLiveUpdateGuard::UndoLiveUpdateGuard( const OUString& i_undoString, const uno::Reference< document::XUndoManager >& i_undoManager )
 108     :UndoGuard( i_undoString, i_undoManager, E_MODEL )
 109 {
 110 }
 111
 112 UndoLiveUpdateGuard::~UndoLiveUpdateGuard()
 113 {
 114     if ( !isActionPosted() )
 115         rollback();
 116 }
 117
 118 //-----------------------------------------------------------------------------
 119
 120 UndoLiveUpdateGuardWithData::UndoLiveUpdateGuardWithData(
 121         const OUString& i_undoString, const uno::Reference< document::XUndoManager >& i_undoManager )
 122     :UndoGuard( i_undoString, i_undoManager, E_MODEL_WITH_DATA )
 123 {
 124 }
 125
 126 UndoLiveUpdateGuardWithData::~UndoLiveUpdateGuardWithData()
 127 {
 128     if ( !isActionPosted() )
 129         rollback();
 130 }
 131
 132 //-----------------------------------------------------------------------------
 133
 134 UndoGuardWithSelection::UndoGuardWithSelection(
 135         const OUString& i_undoString, const uno::Reference< document::XUndoManager >& i_undoManager )
 136     :UndoGuard( i_undoString, i_undoManager, E_MODEL_WITH_SELECTION )
 137 {
 138 }
 139
 140 //-----------------------------------------------------------------------------
 141
 142 UndoGuardWithSelection::~UndoGuardWithSelection()
 143 {
 144     if ( !isActionPosted() )
 145         rollback();
 146 }
 147
 148 HiddenUndoContext::HiddenUndoContext( const Reference< document::XUndoManager > & i_undoManager )
 149     :m_xUndoManager( i_undoManager )
 150 {
 151     ENSURE_OR_THROW( m_xUndoManager.is(), "invalid undo manager!" );
 152     try
 153     {
 154         m_xUndoManager->enterHiddenUndoContext();
 155     }
 156     catch( const uno::Exception& )
 157     {
 158         DBG_UNHANDLED_EXCEPTION();
 159         m_xUndoManager.clear();
 160             // prevents the leaveUndoContext in the dtor
 161     }
 162 }
 163
 164 //-----------------------------------------------------------------------------
 165
 166 HiddenUndoContext::~HiddenUndoContext()
 167 {
 168     try
 169     {
 170         if ( m_xUndoManager.is() )
 171             m_xUndoManager->leaveUndoContext();
 172     }
 173     catch( const uno::Exception& )
 174     {
 175         DBG_UNHANDLED_EXCEPTION();
 176     }
 177 }
 178
 179 } //  namespace chart
 180
 181 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */