1 files changed, 127 insertions, 0 deletions
diff --git a/src/libjin/Graphics/Font/TTF.h b/src/libjin/Graphics/Font/TTF.h
new file mode 100644
index 0000000..4f51138
--- /dev/null
+++ b/src/libjin/Graphics/Font/TTF.h
@@ -0,0 +1,127 @@
+#ifndef __LIBJINTTF_H
+#define __LIBJIN_TTF_H
+#include "../../jin_configuration.h"
+#if LIBJIN_MODULES_RENDER
+
+#include <vector>
+#include <map>
+
+#include "../../3rdparty/stb/stb_truetype.h"
+#include "../../math/quad.h"
+#include "../Color.h"
+#include "../drawable.h"
+
+#include "Page.h"
+#include "Font.h"
+#include "Text.h"
+
+namespace jin
+{
+namespace graphics
+{  
+    
+	/**
+	 * TTFData
+	 *   |- TTF
+	 *   |- TTF
+	 *   .
+	 *   .
+	 *   .
+	*/
+    class TTFData
+    {
+    public:
+        static TTFData* createTTFData(const unsigned char* data, unsigned int size);
+
+        ~TTFData();
+
+        void pushTTFsize(unsigned int ttfsize);
+        void popTTFsize();
+
+        Channel* getCodepointBitmapAlpha(unsigned int codepoint, int* width, int* height, int* xoff, int* yoff) const;
+        Color* getCodepointBitmap(unsigned int codepoint, int* width, int* height, int* xoff, int* yoff) const;
+
+        void getVMetrics(int* baseline, int* descent);
+        void getHMetrics(unsigned int codepoint, int* advanceWidth, int* leftSideBearing);
+
+    private:
+        static const unsigned int FONT_SIZE = 12;
+
+        TTFData(const unsigned char* data, unsigned int size);
+
+        stbtt_fontinfo info;
+        struct
+        {
+            unsigned char* data;
+            unsigned int size;
+        } raw;
+        std::vector<float> scales;
+
+    };
+
+    class TTF : public Font
+    {
+    public:
+        static TTF* createTTF(TTFData* ttfData, unsigned int ttfSzie);
+
+		Page* typeset(const Text& text, int lineheight, int spacing = 0) override;
+        Page* typeset(const Content& text, int lineheight, int spacing = 0) override;
+
+		void print(const  Text& text, int x, int y, int lineheight, int spacing = 0) override;
+        void print(const Content& text, int x, int y, int lineheight, int spacing = 0) override;
+		void print(const Page* page, int x, int y) override;
+
+        ~TTF();
+
+    private:
+        struct TTFGlyph
+        {
+            GLuint atlas;
+            /* normalized coordinates */
+            struct Bbox
+            {
+                float x, y;
+                float w, h;
+            } bbox;
+            /* glyph size in pixel */
+            unsigned int width, height;
+        };
+
+        static const int TEXTURE_SIZE_LEVELS_COUNT = 7;
+        static const int TEXTURE_SIZE_LEVEL_MAX = TEXTURE_SIZE_LEVELS_COUNT - 1;
+        static const int TEXTURE_WIDTHS[TEXTURE_SIZE_LEVELS_COUNT];
+        static const int TEXTURE_HEIGHTS[TEXTURE_SIZE_LEVELS_COUNT];
+
+        TTF(TTFData* ttf, Codepoint ttfSize);
+
+        void estimateSize();
+        GLuint createAtlas();
+        TTFGlyph& bakeGlyph(Codepoint character);
+        TTFGlyph& findGlyph(Codepoint character);
+
+        int getCharWidth(int c);
+        int getCharHeight(int c);
+
+		int getTextWidth(const Content& text, int spacing = 0);
+		int getTextHeight(const Content& text, int lineheight);
+		void getTextBox(const Content& text, int* w, int* h, int lineheight, int spacing = 0);
+
+        int textureWidth;
+        int textureHeight;
+        std::vector<GLuint> atlases;
+        std::map<Codepoint, TTFGlyph> glyphs;
+        TTFData* ttf;
+        const unsigned int ttfsize;
+        int baseline;
+        int descent; 
+
+        /* cursor helped render to texture */
+        math::Vector2<float> cursor;
+
+    };
+
+} // graphics
+} // jin
+
+#endif // LIBJIN_MODULES_RENDER
+#endif // __LIBJIN_FONT_H
+\ No newline at end of file