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Sort VIEW_GROUP drawing by layer order 

Fixes: lp:1757146
* https://bugs.launchpad.net/kicad/+bug/1757146
This commit is contained in:
Jon Evans 2018-03-25 11:10:51 -04:00
parent 1cd64778d6
commit 1dd4af2972
1 changed files with 37 additions and 11 deletions
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48
common/view/view_group.cpp
View File

@ -105,28 +105,54 @@ void VIEW_GROUP::ViewDraw( int aLayer, VIEW* aView ) const
const auto drawList = updateDrawList();
// Draw all items immediately (without caching)
std::unordered_map<int, std::vector<VIEW_ITEM*>> layer_item_map;
// Build a list of layers used by the items in the group
for( auto item : drawList )
{
gal->PushDepth();
int item_layers[VIEW::VIEW_MAX_LAYERS], item_layers_count;
item->ViewGetLayers( item_layers, item_layers_count );
int layers[VIEW::VIEW_MAX_LAYERS], layers_count;
item->ViewGetLayers( layers, layers_count );
aView->SortLayers( layers, layers_count );
for( int i = 0; i < layers_count; i++ )
for( int i = 0; i < item_layers_count; i++ )
{
if( aView->IsLayerVisible( layers[i] ) )
if( layer_item_map.count( item_layers[i] ) == 0 )
{
gal->AdvanceDepth();
layer_item_map.emplace( std::make_pair( item_layers[i],
std::vector<VIEW_ITEM*>() ) );
}
layer_item_map[ item_layers[i] ].push_back( item );
}
}
int layers[VIEW::VIEW_MAX_LAYERS], layers_count = 0;
for( const auto& entry : layer_item_map )
{
layers[ layers_count++ ] = entry.first;
}
aView->SortLayers( layers, layers_count );
// Now draw the layers in sorted order
gal->PushDepth();
for( int i = 0; i < layers_count; i++ )
{
if( aView->IsLayerVisible( layers[i] ) )
{
gal->AdvanceDepth();
for( auto item : layer_item_map[ layers[i] ] )
{
if( !painter->Draw( item, layers[i] ) )
item->ViewDraw( layers[i], aView ); // Alternative drawing method
}
}
gal->PopDepth();
}
gal->PopDepth();
}