Text.hpp

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/*
 * =====================================================================================
 *
 *       Filename:  Text.hpp
 *
 *    Description:
 *
 *        Created:  30/12/2018 19:03:58
 *
 *         Author:  Quentin Bazin, <quent42340@gmail.com>
 *
 * =====================================================================================
 */
#ifndef GK_TEXT_HPP_
#define GK_TEXT_HPP_

#include "gk/graphics/Color.hpp"
#include "gk/core/Rect.hpp"
#include "gk/gl/IDrawable.hpp"
#include "gk/gl/Texture.hpp"
#include "gk/gl/Transformable.hpp"
#include "gk/graphics/Font.hpp"
#include "gk/graphics/Image.hpp"

namespace gk {

class Text : public IDrawable, public Transformable {
    public:
        Text() = default;
        Text(const std::string &fontResourceName, int ptsize);
        Text(const std::string &text, const std::string &fontResourceName, int ptsize);
        Text(const std::string &text, const Font &font, int ptsize);

        IntRect getLocalBounds();

        void setFont(const Font &font) { m_font = &font; m_isUpdateNeeded = true; }
        void setFont(const std::string &resourceName);

        const std::string &text() const { return m_text; }
        void setText(const std::string &text) { m_text = text; m_isUpdateNeeded = true; }

        enum Style {
            Normal        = TTF_STYLE_NORMAL,
            Bold          = TTF_STYLE_BOLD,
            Italic        = TTF_STYLE_ITALIC,
            Underline     = TTF_STYLE_UNDERLINE,
            Strikethrough = TTF_STYLE_STRIKETHROUGH,
        };

        void setStyle(Style style) { m_style = style; m_isUpdateNeeded = true; }
        void setColor(const Color &color) { m_color = color; m_isUpdateNeeded = true; }
        void setCharacterSize(int size) { m_characterSize = size; m_isUpdateNeeded = true; }

        void setSize(const gk::Vector2i &size) { m_size = size; m_isUpdateNeeded = true; }
        void setCentered(bool isCentered) { m_isCentered = isCentered; m_isUpdateNeeded = true; }
        void setScaled(bool isScaled) { m_isScaled = isScaled; m_isUpdateNeeded = true; }
        void setWrapped(bool isWrapped) { m_isWrapped = isWrapped; m_isUpdateNeeded = true; }

    private:
        void update() const;

        void draw(RenderTarget &target, RenderStates states) const override;

        const Font *m_font = nullptr;

        Style m_style = Style::Normal;
        Color m_color;

        mutable bool m_isUpdateNeeded = false;
        mutable Image m_image;
        mutable Texture m_texture;

        std::string m_text;
        int m_characterSize = -1;

        gk::Vector2i m_size{0, 0};
        bool m_isCentered = false;
        bool m_isScaled = false;
        bool m_isWrapped = false;
};

} // namespace gk

#endif // GK_TEXT_HPP_