group_renderer.cxx

#include "group_renderer.h"
#include <cgv_gl/gl/gl.h>
#include <cgv_gl/gl/gl_tools.h>
 
namespace cgv {
    namespace render {
 
 
        group_render_style::group_render_style()
        {
            use_group_color = false;
            use_group_transformation = false;
        }
 
        group_renderer::group_renderer()
        {
            has_group_indices = false;
            has_group_colors = false;
            has_group_translations = false;
            has_group_rotations = false;
        }
        void group_renderer::enable_attribute_array_manager(const context& ctx, attribute_array_manager& aam)
        {
            renderer::enable_attribute_array_manager(ctx, aam);
            if (has_attribute(ctx, "group_index"))
                has_group_indices = true;
        }
        void group_renderer::disable_attribute_array_manager(const context& ctx, attribute_array_manager& aam)
        {
            renderer::disable_attribute_array_manager(ctx, aam);
            has_group_indices = false;
        }
 
        void group_renderer::set_group_index_array(const context& ctx, const std::vector<unsigned>& group_indices)
        {
            has_group_indices = true;
            set_attribute_array(ctx, "group_index", group_indices);
        }
        void group_renderer::set_group_index_array(const context& ctx, const unsigned* group_indices, size_t nr_elements)
        {
            has_group_indices = true;
            set_attribute_array(ctx, "group_index", group_indices, nr_elements, 0);
        }
        void group_renderer::set_group_index_array(const context& ctx, type_descriptor element_type, const vertex_buffer& vbo, size_t offset_in_bytes, size_t nr_elements, unsigned stride_in_bytes)
        {
            has_group_indices = true;
            set_attribute_array(ctx, "group_index", element_type, vbo, offset_in_bytes, nr_elements, stride_in_bytes);
        }
        void group_renderer::remove_group_index_array(const context& ctx) {
            has_group_indices = false;
            remove_attribute_array(ctx, "group_index");
        }
        bool group_renderer::validate_attributes(const context& ctx) const
        {
            // validate set attributes
            bool res = renderer::validate_attributes(ctx);
            if (!res)
                return false;
            if (!get_style_ptr())
                return false;
            const group_render_style& grs = get_style<group_render_style>();
            if (!has_group_indices && (grs.use_group_color || grs.use_group_transformation)) {
                ctx.error("group_renderer::enable() group_index attribute not set while using group colors or group transformations");
                res = false;
            }
            if (!has_group_colors && grs.use_group_color) {
                ctx.error("group_renderer::enable() group_colors not set");
                res = false;
            }
            if (!has_group_translations && grs.use_group_transformation) {
                ctx.error("group_renderer::enable() group_translations not set");
                res = false;
            }
            if (!has_group_rotations && grs.use_group_transformation) {
                ctx.error("group_renderer::enable() group_rotations not set");
                res = false;
            }
            return res;
        }
 
        bool group_renderer::enable(context& ctx)
        {
            bool res = renderer::enable(ctx);
            const group_render_style& grs = get_style<group_render_style>();
            if (ref_prog().is_linked()) {
                ref_prog().set_uniform(ctx, "use_group_color", grs.use_group_color);
                ref_prog().set_uniform(ctx, "use_group_transformation", grs.use_group_transformation);
            }
            else
                res = false;
            return res;
        }
        bool group_renderer::disable(context& ctx)
        {
            bool res = renderer::disable(ctx);
            if (!attributes_persist())
                has_group_indices = false;
            return res;
        }
 
        bool group_render_style_reflect::self_reflect(cgv::reflect::reflection_handler& rh)
        {
            return
                rh.reflect_member("use_group_color", use_group_color) &&
                rh.reflect_member("use_group_transformation", use_group_transformation);
        }
 
        cgv::reflect::extern_reflection_traits<group_render_style, group_render_style_reflect> get_reflection_traits(const group_render_style&)
        {
            return cgv::reflect::extern_reflection_traits<group_render_style, group_render_style_reflect>();
        }
    }
}
 
//namespace cgv {
//  namespace reflect {
//      namespace render {
//      }
//  }
//}
 
#include <cgv/gui/provider.h>
 
namespace cgv {
    namespace gui {
 
        struct group_render_style_gui_creator : public gui_creator
        {
            bool create(provider* p, const std::string& label,
                void* value_ptr, const std::string& value_type,
                const std::string& gui_type, const std::string& options, bool*)
            {
                if (value_type != cgv::type::info::type_name<cgv::render::group_render_style>::get_name())
                    return false;
                cgv::render::group_render_style* grs_ptr = reinterpret_cast<cgv::render::group_render_style*>(value_ptr);
                cgv::base::base* b = dynamic_cast<cgv::base::base*>(p);
 
                p->add_member_control(b, "Use Group Color", grs_ptr->use_group_color);
                p->add_member_control(b, "Use Group Transformation", grs_ptr->use_group_transformation);
                return true;
            }
        };
 
#include "gl/lib_begin.h"
 
CGV_API cgv::gui::gui_creator_registration<group_render_style_gui_creator> group_rs_gc_reg("group_render_style_gui_creator");
 
    }
}