types.cppm

// This project is licensed under the GPL-3.0 License. See the LICENSE file for details, or check out <gnu.org>.
// Copyright (C) 2026 mxreal64

module;
#include <SDL3/SDL.h>

export module delta.types;
import std;

export inline constexpr int WINDOW_WIDTH = 1920;
export inline constexpr int WINDOW_HEIGHT = 1080;
export inline constexpr float MARGIN_X = 100.0f;
export inline constexpr float MARGIN_Y = 80.0f;
export inline constexpr float LINE_SPACING = 36.0f;
export inline constexpr int TARGET_FPS = 60;
export inline constexpr int FRAME_DELAY = 1000 / TARGET_FPS;

export enum class DeltaError : uint8_t {
    FontLoadFailure,
    RendererNullPointer,
    WindowCreationFailed
};

export struct style_state {
    bool bold = false;
    bool italic = false;
};

export struct selection_span {
    size_t start = 0;
    size_t end = 0;
    bool active_drag = false;
};

//  THE NEW LAYOUT SOURCE OF TRUTH
export struct LayoutChar {
    char character;
    size_t raw_buffer_index;
    style_state style;
};

export struct LayoutLine {
    std::vector<LayoutChar> chars;
    bool is_hard_newline = false;
};