Initial checkin

BeefySysLib/gfx/FTFont.h

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+#pragma once
+
+#include "../Common.h"
+#include "../util/String.h"
+#include "../util/Dictionary.h"
+#include "../util/Array.h"
+#include <unordered_map>
+#include <vector>
+
+#include "third_party/freetype/include/ft2build.h"
+#include FT_FREETYPE_H
+
+NS_BF_BEGIN
+
+class Texture;
+class TextureSegment;
+
+class FTFontManager
+{
+public:
+	class Face;
+
+	class FaceSize
+	{
+	public:
+		Face* mFace;
+		FT_Size mFTSize;
+		int mRefCount;
+		float mPointSize;
+
+	public:
+		FaceSize()
+		{
+			mFace = NULL;
+			mRefCount = 0;
+			mFTSize = NULL;
+			mPointSize = -1;
+		}
+		~FaceSize();
+	};
+
+	class Face
+	{
+	public:
+		String mFileName;
+		FT_Face mFTFace;		
+		Dictionary<float, FaceSize*> mFaceSizes;
+
+	public:
+		Face()
+		{
+			mFTFace = NULL;
+		}
+		~Face();
+	};
+	
+	class Page
+	{
+	public:
+		Texture* mTexture;
+		int mCurX;
+		int mCurY;
+		int mMaxRowHeight;
+
+	public:
+		Page()
+		{
+			mTexture = NULL;
+			mCurX = 0;
+			mCurY = 0;
+			mMaxRowHeight = 0;
+		}
+
+		~Page();
+	};
+
+	class Glyph
+	{
+	public:
+		Page* mPage;
+		TextureSegment* mTextureSegment;
+		int mX;
+		int mY;
+		int mWidth;
+		int mHeight;
+		int mXOffset;
+		int mYOffset;
+		int mXAdvance;
+
+	public:
+		Glyph()
+		{
+			mPage = NULL;
+			mTextureSegment = NULL;
+		}
+
+		//~Glyph();
+	};
+
+public:
+	Dictionary<String, Face*> mFaces;
+	Array<Page*> mPages;
+
+	uint8 mWhiteTab[256];
+	uint8 mBlackTab[256];
+	
+	void DoClearCache();
+public:
+	FTFontManager();
+	~FTFontManager();
+		
+	static void ClearCache();
+};
+
+class FTFont
+{
+public:
+	int mHeight;
+	int mAscent;
+	int mDescent;
+	int mMaxAdvance;
+	FTFontManager::Face* mFace;
+	FTFontManager::FaceSize* mFaceSize;
+
+protected:
+	void Dispose(bool cacheRetain);
+
+public:
+	FTFont();
+	~FTFont();	
+	
+	bool Load(const StringImpl& file, float pointSize);	
+
+	FTFontManager::Glyph* AllocGlyph(int charCode, bool allowDefault);
+	int GetKerning(int charA, int charB);
+
+	void Release(bool cacheRetain = false);
+};
+
+NS_BF_END