From 8b00d67febf133e89f6a0bfabc41feed555dc4a9 Mon Sep 17 00:00:00 2001 From: chai Date: Sat, 12 Jan 2019 21:48:33 +0800 Subject: =?UTF-8?q?*=E5=8E=BB=E6=8E=89=E6=96=87=E4=BB=B6=E5=89=8D=E7=BC=80?= =?UTF-8?q?je=5F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/libjin/graphics/fonts/ttf.h | 286 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 286 insertions(+) create mode 100644 src/libjin/graphics/fonts/ttf.h (limited to 'src/libjin/graphics/fonts/ttf.h') diff --git a/src/libjin/graphics/fonts/ttf.h b/src/libjin/graphics/fonts/ttf.h new file mode 100644 index 0000000..8439cd7 --- /dev/null +++ b/src/libjin/graphics/fonts/ttf.h @@ -0,0 +1,286 @@ +#ifndef __JE_TTF_H__ +#define __JE_TTF_H__ +#include "../../core/configuration.h" +#if defined(jin_graphics) + +#include +#include + +#include "stb/stb_truetype.h" + +#include "../../math/quad.h" + +#include "../color.h" +#include "../graphic.h" + +#include "page.h" +#include "font.h" +#include "text.h" + +namespace JinEngine +{ + namespace Graphics + { + namespace Fonts + { + + class TTF; + + // + // TTFData + // |- TTF(14px) + // |- TTF(15px) + // . + // . + // . + // + class TTFData : public Object + { + public: + /// + /// + /// + TTFData(const unsigned char* data, unsigned int size); + + /// + /// + /// + ~TTFData(); + + /// + /// + /// + TTF* createTTF(unsigned ttfsize); + + /// + /// + /// + void pushTTFsize(unsigned 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; + + /// + /// + /// + stbtt_fontinfo info; + + /// + /// + /// + struct + { + unsigned char* data; + unsigned int size; + } raw; + + /// + /// + /// + std::vector scales; + + }; + + class TTF : public Font, public Object + { + public: + //static TTF* createTTF(TTFData* ttfData, unsigned ttfSzie); + + /// + /// + /// + Page* typeset(const Text& text, int lineheight, int spacing = 0) override; + + /// + /// + /// + Page* typeset(const Content& text, int lineheight, int spacing = 0) override; + + /// + /// + /// + void render(const Text& text, int x, int y, int lineheight, int spacing = 0) override; + + /// + /// + /// + void render(const Content& text, int x, int y, int lineheight, int spacing = 0) override; + + /// + /// + /// + void render(const Page* page, int x, int y) override; + + /// + /// + /// + ~TTF(); + + private: + + friend class TTFData; + + /// + /// + /// + 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 atlases; + + /// + /// + /// + std::map glyphs; + + /// + /// + /// + TTFData* ttf; + + /// + /// + /// + int baseline; + + /// + /// + /// + int descent; + + /// + /// + /// + Math::Vector2 cursor; + + }; + + } // namespace Fonts + } // namespace Graphics +} // namespace JinEngine + +#endif // defined(jin_graphics) + +#endif // __JE_FONT_H__ \ No newline at end of file -- cgit v1.1-26-g67d0