MRRibbonFontManager.h

Go to the documentation of this file.

#pragma once
#include "exports.h"
#include "MRViewerFwd.h"
#include "MRImGui.h"
#include <array>
#include <filesystem>
 
namespace MR
{
 
 
class MRVIEWER_CLASS RibbonFontManager
{
public:

    enum class FontType
    {
        Default,
        Small,
        Middle,
        SemiBold,
        Icons,
        Big,
        BigSemiBold,
        Headline,
        Monospace,
        Count
    };

    enum class FontFile
    {
        Regular,
        RegularSC, 
        SemiBold,
        Monospace,
        Icons,
        Count
    };
 
    using FontFilePaths = std::array<std::filesystem::path, size_t( FontFile::Count )>;
 
    MRVIEWER_API RibbonFontManager();

    MRVIEWER_API void loadAllFonts( ImWchar* charRanges );

    MRVIEWER_API ImFont* getFontByType( FontType type ) const;
    MRVIEWER_API static float getFontSizeByType( FontType type );

    MRVIEWER_API std::filesystem::path getMenuFontPath() const;

    const FontFilePaths& getAllFontPaths() const { return fontPaths_; }

    MRVIEWER_API void setNewFontPaths( const FontFilePaths& paths );

    MRVIEWER_API static ImFont* getFontByTypeStatic( FontType type );

    MRVIEWER_API static FontAndSize getFontAndSizeByTypeStatic( FontType type );

    MRVIEWER_API static void initFontManagerInstance( RibbonFontManager* ribbonFontManager );
 
private:
 
    FontFilePaths fontPaths_;
    struct FontData
    {
        FontFile fontFile{ FontFile::RegularSC }; 
        Vector2f scaledOffset; 
        ImFont* fontPtr{ nullptr }; 
    };
    std::array<FontData, size_t( FontType::Count )> fonts_;

    static RibbonFontManager*& getFontManagerInstance_();

    void updateFontsScaledOffset_();
 
    void loadFont_( FontType type, const ImWchar* ranges );
};
 
}