ui_document_component.h

Go to the documentation of this file.

#pragma once
 
#include "base/basetypes.hpp"
#include <engine/ecs/components/basic_component.h>
#include <engine/assets/asset_handle.h>
#include <engine/ui/ui_tree.h>
#include <graphics/frame_buffer.h>
#include <math/math.h>
#include <string>
#include <memory>
 
#include "../../rmlui/RmlUi_RenderLayerStack.h"
 
// Forward declarations
namespace Rml
{
    class Context;
    class ElementDocument;
}
 
namespace unravel
{
 
constexpr float UI_DEFAULT_PIXELS_PER_WORLD_UNIT = 100.0f;
 
enum class ui_render_mode
{
    screen_space_overlay,  
    world_space           
};
 
struct ui_document_component : public component_crtp<ui_document_component, owned_component>
{
    asset_handle<ui_tree> asset;
 
    Rml::Context* context = nullptr;
 
    Rml::ElementDocument* document = nullptr;
 
    uint64_t version = 0;
 
    ui_render_mode render_mode = ui_render_mode::screen_space_overlay;
 
    usize32_t size = {512, 512};
    float pixels_per_world_unit = UI_DEFAULT_PIXELS_PER_WORLD_UNIT;
 
    gfx::frame_buffer::ptr framebuffer;
 
    uint32_t last_render_frame = 0;
 
    std::shared_ptr<RmlUi_RenderLayerStack> render_layer_stack;
 
    auto get_world_space_scale() const -> math::vec2;
 
     auto get_bounds() const -> math::bbox;
    [[nodiscard]] auto is_loaded() const -> bool;
    
    [[nodiscard]] auto is_enabled() const -> bool;
 
 
    void set_enabled(bool enabled);
 
private:
    
    bool enabled_ = true;
 
};
 
} // namespace unravel