omath/source/hud/renderer_realizations/imgui_renderer.cpp

//
// Created by orange on 13.03.2026.
//
#include "omath/hud/renderer_realizations/imgui_renderer.hpp"

#ifdef OMATH_IMGUI_INTEGRATION
#include <imgui.h>

namespace omath::hud
{
    ImguiHudRenderer::~ImguiHudRenderer() = default;

    void ImguiHudRenderer::add_line(const Vector2<float>& line_start, const Vector2<float>& line_end,
                                    const Color& color, const float thickness)
    {
        ImGui::GetBackgroundDrawList()->AddLine(line_start.to_im_vec2(), line_end.to_im_vec2(), color.to_im_color(),
                                                thickness);
    }

    void ImguiHudRenderer::add_polyline(const std::span<const Vector2<float>>& vertexes, const Color& color,
                                        const float thickness)
    {
        ImGui::GetBackgroundDrawList()->AddPolyline(reinterpret_cast<const ImVec2*>(vertexes.data()),
                                                    static_cast<int>(vertexes.size()), color.to_im_color(),
                                                    ImDrawFlags_None, thickness);
    }

    void ImguiHudRenderer::add_filled_polyline(const std::span<const Vector2<float>>& vertexes, const Color& color,
                                               const float thickness)
    {
        ImGui::GetBackgroundDrawList()->AddPolyline(reinterpret_cast<const ImVec2*>(vertexes.data()),
                                                    static_cast<int>(vertexes.size()), color.to_im_color(),
                                                    ImDrawFlags_Closed, thickness);
    }

    void ImguiHudRenderer::add_rectangle(const Vector2<float>& min, const Vector2<float>& max, const Color& color)
    {
        ImGui::GetBackgroundDrawList()->AddRect(min.to_im_vec2(), max.to_im_vec2(), color.to_im_color());
    }

    void ImguiHudRenderer::add_filled_rectangle(const Vector2<float>& min, const Vector2<float>& max,
                                                const Color& color)
    {
        ImGui::GetBackgroundDrawList()->AddRectFilled(min.to_im_vec2(), max.to_im_vec2(), color.to_im_color());
    }

    void ImguiHudRenderer::add_text(const Vector2<float>& position, const Color& color, const std::string_view& text)
    {
        ImGui::GetBackgroundDrawList()->AddText(position.to_im_vec2(), color.to_im_color(), text.data(),
                                                text.data() + text.size());
    }
    [[nodiscard]]
    Vector2<float> calc_text_size(const std::string_view& text)
    {
        return Vector2<float>::from_im_vec2(ImGui::CalcTextSize(text.data()));
    }
} // namespace omath::hud
#endif // OMATH_IMGUI_INTEGRATION