OSDText.hh

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#ifndef OSDTEXT_HH
#define OSDTEXT_HH

#include "OSDImageBasedWidget.hh"
#include "TTFFont.hh"
#include <memory>

namespace openmsx {

class OSDText final : public OSDImageBasedWidget
{
public:
        OSDText(Display& display, const TclObject& name);

        std::vector<std::string_view> getProperties() const override;
        void setProperty(Interpreter& interp,
                         std::string_view name, const TclObject& value) override;
        void getProperty(std::string_view name, TclObject& result) const override;
        std::string_view getType() const override;

private:
        void invalidateLocal() override;
        gl::vec2 getSize(const OutputSurface& output) const override;
        uint8_t getFadedAlpha() const override;
        std::unique_ptr<BaseImage> createSDL(OutputSurface& output) override;
        std::unique_ptr<BaseImage> createGL (OutputSurface& output) override;
        template <typename IMAGE> std::unique_ptr<BaseImage> create(
                OutputSurface& output);

        template<typename FindSplitPointFunc, typename CantSplitFunc>
        size_t split(const std::string& line, unsigned maxWidth,
                FindSplitPointFunc findSplitPoint, CantSplitFunc cantSplit,
                bool removeTrailingSpaces) const;
        size_t splitAtChar(const std::string& line, unsigned maxWidth) const;
        size_t splitAtWord(const std::string& line, unsigned maxWidth) const;
        std::string getCharWrappedText(const std::string& txt, unsigned maxWidth) const;
        std::string getWordWrappedText(const std::string& txt, unsigned maxWidth) const;

        gl::vec2 getRenderedSize() const;

        enum WrapMode { NONE, WORD, CHAR };

        std::string text;
        std::string fontfile;
        TTFFont font;
        int size;
        WrapMode wrapMode;
        float wrapw, wraprelw;

        friend struct SplitAtChar;
};

} // namespace openmsx

#endif