Font.h

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// ----------------------------------------------------------------------------
// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <cstdint>
#include <string>
#include <vector>
 
#include "open3d/visualization/gui/Gui.h"
 
namespace open3d {
namespace visualization {
namespace gui {
 
class FontDescription {
public:
    constexpr static const char *SANS_SERIF = "sans-serif";
    constexpr static const char *MONOSPACE = "monospace";

    explicit FontDescription(const char *typeface,
                             FontStyle style = FontStyle::NORMAL,
                             int point_size = 0);

    void AddTypefaceForLanguage(const char *typeface, const char *lang);

    void AddTypefaceForCodePoints(const char *typeface,
                                  const std::vector<uint32_t> &code_points);
 
public:  // for internal use, use functions above to set
    struct CPRange {
        std::string path;
        std::string lang;
        std::vector<uint32_t> code_points;  // empty if lang is not ""
    };
    std::vector<CPRange> ranges_;
    FontStyle style_;
    int point_size_;
};
 
}  // namespace gui
}  // namespace visualization
}  // namespace open3d