sampleWriter::layer Namespace Reference

Functions
Dtk_LayerInfosSetPtr	CreateSet ()
	Create Layer info set. More...
Dtk_LayerInfosSetPtr	CreateSetWithFilters ()
	Creates a layer info set with 9 layers and 2 named layer filters grouping subsets of those layers. More...
Dtk_LayerInfosSetPtr	CreateSetWithFlagsAndFilters ()
	Creates a layer info set with 257 layers (indices 0-256), alternating visible/selectable flags, 2 named layer filters, and layer 12 set as the current (work) layer. More...

Function Documentation

CreateSet()

Dtk_LayerInfosSetPtr sampleWriter::layer::CreateSet

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Create Layer info set.

Creates a basic layer info set with 3 named layers (indices 0, 42, 1900).

          {
               Dtk_LayerInfosSetPtr layerInfosSet = Dtk_LayerInfosSet::Create();
               layerInfosSet->AddLayer( Dtk_LayerInfosSet::Layer( 42, L"MyFirstLayer" ) );
               layerInfosSet->AddLayer( Dtk_LayerInfosSet::Layer( 1900, L"MySecondLayer" ) );
               layerInfosSet->AddLayer( Dtk_LayerInfosSet::Layer( 0, L"Faces" ) );
               return layerInfosSet;
          }

CreateSetWithFilters()

Dtk_LayerInfosSetPtr sampleWriter::layer::CreateSetWithFilters

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Creates a layer info set with 9 layers and 2 named layer filters grouping subsets of those layers.

          {
               Dtk_LayerInfosSetPtr layerInfoSet = Dtk_LayerInfosSet::Create();
               //we use a layer Idx to correctly handle the layers indices for filters.
               Dtk_Size_t LayerIdx = 0;
               //1st layer - 888 -
               Dtk_Size_t Layer888Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 888, L"My First Layer" ) );
               DTK_UNUSED( Layer888Idx );
 
               //2nd layer - 111 -
               Dtk_Size_t Layer111Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 111 , L"My Second Layer" ) );
               DTK_UNUSED( Layer111Idx );
 
               //3rd layer - 987 -
               Dtk_Size_t Layer987Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 987 , L"My Third Layer" ) );
               DTK_UNUSED( Layer987Idx );
 
               //4th layer - 4 -
               Dtk_Size_t Layer4Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 4 ) );
 
               //5th layer - 5 -
               Dtk_Size_t Layer5Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 5 ) );
 
               //6th layer - 6 -
               Dtk_Size_t Layer6Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 6 ) );
 
               //7th layer - 10 -
               Dtk_Size_t Layer10Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 10 ) );
 
               //8th layer - 11 -
               Dtk_Size_t Layer11Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 11 ) );
 
               //9th layer - 12 -
               Dtk_Size_t Layer12Idx = LayerIdx++; layerInfoSet->AddLayer( Dtk_LayerInfosSet::Layer( 12 ) );
 
 
               // 2 layer filters :
               //The first one gathers layers 4 - 5 - 6
               Dtk_LayerFilterInfosPtr filter4_5_6 = layerInfoSet->CreateLayerFilterInfos( "FILTER_4-5-6", "MyDescription", DTK_FALSE, DTK_FALSE );
               Dtk_tab<Dtk_Size_t> layers4_5_6;
               layers4_5_6.push_back( Layer4Idx ); layers4_5_6.push_back( Layer5Idx ); layers4_5_6.push_back( Layer6Idx );
               filter4_5_6->SelectLayers( layers4_5_6 );
 
               //The second one gathers layers 10 - 11 - 12
               Dtk_LayerFilterInfosPtr filter10_11_12 = layerInfoSet->CreateLayerFilterInfos( "FILTER_10-11-12" );
               Dtk_tab<Dtk_Size_t> layers10_11_12;
               layers10_11_12.push_back( Layer10Idx ); layers10_11_12.push_back( Layer11Idx ); layers10_11_12.push_back( Layer12Idx );
               filter10_11_12->SelectLayers( layers10_11_12 );
 
               return layerInfoSet;
          }

CreateSetWithFlagsAndFilters()

Dtk_LayerInfosSetPtr sampleWriter::layer::CreateSetWithFlagsAndFilters

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Creates a layer info set with 257 layers (indices 0-256), alternating visible/selectable flags, 2 named layer filters, and layer 12 set as the current (work) layer.

Creates a layer info set with 257 layers where visibility and selectability flags are set alternately, plus 2 layer filters and a specified current (work) layer.

          {
                    const int maxlayer = 257;  // 256 layers (from 1 to 256 included for NX)
                    Dtk_LayerInfosSetPtr layerInfoSet = Dtk_LayerInfosSet::Create( );
                    for( int i = 0; i < maxlayer; ++i )
                    {
                         auto layerToBeAdded = Dtk_LayerInfosSet::Layer( i );
                         if( i % 2 == 0 )// one on two
                              layerToBeAdded.Unflag( Dtk_LayerInfosSet::Layer::Status::Visible );
                         if( i % 3 == 0 )// one on three
                              layerToBeAdded.Unflag( Dtk_LayerInfosSet::Layer::Status::Selectable );
                         layerInfoSet->AddLayer( std::move( layerToBeAdded ) );
                    }
 
                    // 2 layer filters :
                    Dtk_LayerFilterInfosPtr filter456 = layerInfoSet->CreateLayerFilterInfos( "FILTER_456", "MyDescription" );
                    Dtk_tab<Dtk_Size_t> lay456;
                    lay456.push_back( 4 ); lay456.push_back( 5 ); lay456.push_back( 6 );
                    filter456->SelectLayers( lay456 );
 
                    Dtk_LayerFilterInfosPtr filter678 = layerInfoSet->CreateLayerFilterInfos( "FILTER_678" );
                    Dtk_tab<Dtk_Size_t> lay678;
                    lay678.push_back( 6 ); lay678.push_back( 7 ); lay678.push_back( 8 );
                    filter678->SelectLayers( lay678 );
                    // wrok layer (default)
                    layerInfoSet->SetCurrentLayer( 12 );
 
                    return layerInfoSet;
          }