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#ifndef __JE_FONT_H__
#define __JE_FONT_H__

#include <vector>

#include "../renderable.h"

#include "text.h"

namespace JinEngine
{
    namespace Graphics
    {
        namespace Fonts
        {

            struct Page;

            //
            // Font 
            //   |- TTF
            //   |- TextureFont
            //

            ///
            /// Base Font class.
            ///
            class Font : public Object, public Renderable
            {
            public:
                /// 
                /// Font constructor.
                /// 
                Font(unsigned fontsize)
                    : mFontSize(fontsize)
                {
                    ++gl.getStats().fonts;
                }

                /// 
                /// Font destructor.
                /// 
                virtual ~Font() 
                {
                    --gl.getStats().fonts;
                };

                /// 
                /// Create page with given text.
                /// 
                /// @param text Text to be typesetted.
                /// @param lineheight Line height of text. 
                /// @param spacing Spacing between characters. 0 by default.
                /// @return Page if created successfully, otherwise return null.
                /// 
                virtual Page* typeset(const Text& text, int lineheight, int spacing = 0) = 0;

                /// 
                /// Create page with given unicode codepoints.
                /// 
                /// @param content Unicode codepoints to be typesetted.
                /// @param lineheight Line height of text. 
                /// @param spacing Spacing between characters. 0 by default.
                /// @return Page if created successfully, otherwise return null.
                /// 
                virtual Page* typeset(const Content& content, int lineheight, int spacing = 0) = 0;

                /// 
                /// Render page to given position.
                /// 
                /// @param page Page to be rendered.
                /// @param x X value of the position. 
                /// @param y Y value of the position.
                /// 
                virtual void render(const Page* page, int x, int y) = 0;

                /// 
                /// Render unicode codepoints to given position.
                /// 
                /// @param content Unicode codepoints to be typesetted.
                /// @param x X value of the position.
                /// @param y Y value of the position. 
                /// @param lineheight Line height of the content. 
                /// @param spacing Spacing between characters.
                /// 
                virtual void render(const Content& content, int x, int y, int lineheight, int spacing = 0) = 0;

                /// 
                /// Render text to given position.
                /// 
                /// @param text Text to be rendered. 
                /// @param x X value of the position. 
                /// @param y Y value of the position.
                /// @param lineheight Line height of the text. 
                /// @param spacing Spacing between characters.
                ///
                virtual void render(const Text& text, int x, int y, int lineheight, int spacing = 0) = 0;

                /// 
                /// Get font size.
                /// 
                /// @return Font size.
                /// 
                inline unsigned getFontSize() { return mFontSize; };

            protected:

                unsigned mFontSize;

            };

        } // namespace Fonts
    } // namespace Graphics
} // namespace JinEngine

#endif // __JE_FONT_H__