[3478] | 1 | /*! |
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| 2 | \file glfont.h |
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| 3 | \brief Handles the display of glFonts. |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _GLFONT_H |
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| 7 | #define _GLFONT_H |
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| 8 | |
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[3682] | 9 | #include "glincl.h" |
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[3691] | 10 | #include "SDL_ttf.h" |
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[3478] | 11 | |
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[3691] | 12 | |
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[3693] | 13 | /* some default values */ |
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[3707] | 14 | #define FONT_DEFAULT_SIZE 50 //!< default size of the Text |
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[3694] | 15 | #define FONT_DEFAULT_TEXT "orxonox 1234567890" //!< some default text to display |
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| 16 | #define FONT_DEFAULT_COLOR_R 256 //!< the default red part (color) of the text |
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| 17 | #define FONT_DEFAULT_COLOR_G 256 //!< the default red green (color) of the text |
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| 18 | #define FONT_DEFAULT_COLOR_B 256 //!< the default red blue (color) of the text |
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[3700] | 19 | #define FONT_NUM_COLORS 256 //!< The number of colors. |
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[3693] | 20 | |
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| 21 | |
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| 22 | |
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[3691] | 23 | //! A struct for handling glyphs |
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[3694] | 24 | /** |
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| 25 | a Glyph is one letter of a certain font |
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| 26 | */ |
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| 27 | struct Glyph |
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[3691] | 28 | { |
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[3694] | 29 | Uint16 character; //!< The character |
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| 30 | int minX; //!< The minimum distance from the origin in X |
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| 31 | int maxX; //!< The maximum distance from the origin in X |
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| 32 | int minY; //!< The minimum distance from the origin in Y |
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| 33 | int maxY; //!< The maximum distance from the origin in Y |
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| 34 | int width; //!< The width of the Glyph |
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| 35 | int height; //!< The height of the Glyph |
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| 36 | int bearingX; //!< How much is right of the Origin |
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| 37 | int bearingY; //!< How much is above the Origin |
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| 38 | int advance; //!< How big a Glyph would be in monospace-mode |
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[3691] | 39 | }; |
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| 40 | |
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[3700] | 41 | //! A Struct to handel Texture Coordinates for quads |
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| 42 | struct TexCoord |
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| 43 | { |
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| 44 | float minU; //!< The minimum U-Coordinate |
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| 45 | float maxU; //!< The maximum U-Coordinate |
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| 46 | float minV; //!< The minimum V-Coordinate |
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| 47 | float maxV; //!< The maximum V-Coordinate |
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| 48 | }; |
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| 49 | |
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[3694] | 50 | //! A class to handle a Font |
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[3478] | 51 | class GLFont |
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| 52 | { |
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| 53 | public: |
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[3696] | 54 | GLFont(const char* fontFile); |
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[3691] | 55 | virtual ~GLFont(); |
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[3478] | 56 | |
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[3691] | 57 | static void enableFonts(void); |
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| 58 | static void disableFonts(void); |
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[3478] | 59 | |
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| 60 | bool setFont(const char* fontFile); |
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| 61 | void setText(const char* text); |
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| 62 | |
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[3691] | 63 | void setStyle(char* renderStyle); |
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[3692] | 64 | void setSize(unsigned int fontSize); |
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| 65 | void setColor(Uint8 r, Uint8 g, Uint8 b); |
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[3478] | 66 | void setPosition(int x, int y); |
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[3692] | 67 | |
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| 68 | void createTexture(void); |
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[3478] | 69 | |
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[3693] | 70 | virtual void draw(void); |
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| 71 | |
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[3478] | 72 | private: |
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[3691] | 73 | // information about the Font |
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[3696] | 74 | TTF_Font* font; //!< The font we use for this. |
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| 75 | char* fontFile; //!< The fontfile from whitch the font was loaded. |
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| 76 | char* text; //!< The text to display |
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| 77 | unsigned int fontSize; //!< The size of the font in pixels |
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| 78 | SDL_Color color; //!< The color of the font. |
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[3691] | 79 | |
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| 80 | // placement in openGL |
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[3696] | 81 | GLuint texture; //!< A GL-texture to hold the text |
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| 82 | SDL_Rect textPosSize; //!< An SDL-Rectangle representing the position and size of the Text on the screen. |
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| 83 | int renderStyle; //!< The Renderstyle |
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[3700] | 84 | TexCoord texCoord; //!< Texture-coordinates \todo fix this to have a struct |
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[3478] | 85 | |
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[3693] | 86 | bool init(const char* fontFile, unsigned int fontSize = FONT_DEFAULT_SIZE); |
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[3691] | 87 | int getMaxHeight(void); |
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| 88 | int getMaxAscent(void); |
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| 89 | int getMaxDescent(void); |
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[3694] | 90 | Glyph getGlyphMetrics(Uint16 character); |
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[3478] | 91 | |
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| 92 | static bool ttfInitialized; |
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| 93 | |
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[3682] | 94 | void enter2DMode(void); |
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| 95 | void leave2DMode(void); |
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| 96 | |
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[3691] | 97 | static bool checkVersion(void); |
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| 98 | |
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[3700] | 99 | GLuint loadTexture(SDL_Surface* surface, TexCoord* texCoord); |
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[3682] | 100 | |
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[3691] | 101 | static int powerOfTwo(int input); |
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[3682] | 102 | |
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[3691] | 103 | void debug(void); |
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| 104 | |
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[3478] | 105 | }; |
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| 106 | |
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| 107 | #endif /* _GLFONT_H */ |
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