void feature_style_processor<Processor>::apply_to_layer(layer const& lay,
Processor & p,
projection const& proj0,
double scale,
double scale_denom,
unsigned width,
unsigned height,
box2d<double> const& extent,
int buffer_size,
std::set<std::string>& names)
{
feature_style_context_map ctx_map;
layer_rendering_material mat(lay, proj0);
prepare_layer(mat,
ctx_map,
p,
scale,
scale_denom,
width,
height,
extent,
buffer_size,
names);
prepare_layers(mat, lay.layers(), ctx_map, p, scale_denom);
if (!mat.active_styles_.empty())
{
render_material(mat,p);
render_submaterials(mat, p);
}
}
void feature_style_processor<Processor>::apply(double scale_denom)
{
Processor & p = static_cast<Processor&>(*this);
p.start_map_processing(m_);
projection proj(m_.srs(),true);
if (scale_denom <= 0.0)
scale_denom = mapnik::scale_denominator(m_.scale(),proj.is_geographic());
scale_denom *= p.scale_factor();
// Asynchronous query supports:
// This is a two steps process,
// first we setup all queries at layer level
// in a second time, we fetch the results and
// do the actual rendering
std::vector<layer_rendering_material_ptr> mat_list;
// Define processing context map used by datasources
// implementing asynchronous queries
feature_style_context_map ctx_map;
for ( layer const& lyr : m_.layers() )
{
if (lyr.visible(scale_denom))
{
std::set<std::string> names;
layer_rendering_material_ptr mat = std::make_shared<layer_rendering_material>(lyr, proj);
prepare_layer(*mat,
ctx_map,
p,
m_.scale(),
scale_denom,
m_.width(),
m_.height(),
m_.get_current_extent(),
m_.buffer_size(),
names);
// Store active material
if (!mat->active_styles_.empty())
{
mat_list.push_back(mat);
}
}
}
for ( layer_rendering_material_ptr mat : mat_list )
{
if (!mat->active_styles_.empty())
{
render_material(*mat,p);
}
}
p.end_map_processing(m_);
}
//----------------------------------------------------------------------------//
RefCounted<RenderMaterial> NullRenderer::createRenderMaterial(const DefaultShaderType shaderType) const
{
if(shaderType == DS_TEXTURED)
{
RefCounted<RenderMaterial> render_material(new RenderMaterial(d_shaderWrapperTextured));
return render_material;
}
else if(shaderType == DS_SOLID)
{
RefCounted<RenderMaterial> render_material(new RenderMaterial(d_shaderWrapperSolid));
return render_material;
}
else
{
CEGUI_THROW(RendererException(
"A default shader of this type does not exist."));
return RefCounted<RenderMaterial>();
}
}
void feature_style_processor<Processor>::render_submaterials(layer_rendering_material const & parent_mat,
Processor & p)
{
for (layer_rendering_material const & mat : parent_mat.materials_)
{
if (!mat.active_styles_.empty())
{
p.start_layer_processing(mat.lay_, mat.layer_ext2_);
render_material(mat, p);
render_submaterials(mat, p);
p.end_layer_processing(mat.lay_);
}
}
}