[4838] | 1 | /*! |
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[5343] | 2 | * @file text.h |
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| 3 | * @brief Definition of a text Class, that is able to render text. |
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[3245] | 4 | */ |
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[1853] | 5 | |
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[5343] | 6 | #ifndef _TEXT_H |
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| 7 | #define _TEXT_H |
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[1853] | 8 | |
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[5343] | 9 | #include "element_2d.h" |
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[1853] | 10 | |
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[5343] | 11 | #include "glincl.h" |
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| 12 | |
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| 13 | #define TEXT_ALIGN_LEFT E2D_ALIGN_LEFT |
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| 14 | #define TEXT_ALIGN_RIGHT E2D_ALIGN_RIGHT |
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| 15 | #define TEXT_ALIGN_CENTER E2D_ALIGN_CENTER |
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| 16 | #define TEXT_ALIGN_SCREEN_CENTER E2D_ALIGN_SCREEN_CENTER |
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| 17 | #define TEXT_DEFAULT_COLOR Vector(1.0, 1.0, 1.0) //!< the default Color (white) |
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| 18 | #define TEXT_DEFAULT_BLENDING 1.0f //!< the default blending of the text, (no blending at all) |
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| 19 | |
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| 20 | #define TEXT_DEFAULT_ALIGNMENT TEXT_ALIGN_CENTER //!< default alignment |
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| 21 | #define TEXT_DEFAULT_SIZE 20 //!< default size of the Text |
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| 22 | |
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| 23 | |
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[4838] | 24 | // FORWARD DECLARATION |
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[5343] | 25 | class Font; |
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[3543] | 26 | |
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[5343] | 27 | /** |
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| 28 | * STATIC means: a font, that is only one GL-face. |
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| 29 | ** it is very fast, and can be used for all text |
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| 30 | ** that does not have to be changed anymore, or if |
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| 31 | ** the the text should look very nice |
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| 32 | * DYNAMIC means: a very fast font, that will is build |
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| 33 | ** from multiple quads. |
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| 34 | ** Use this type, if you want to create fast changing |
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| 35 | ** text like a counter. |
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[5362] | 36 | */ |
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| 37 | typedef enum TEXT_RENDER_TYPE |
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[5343] | 38 | { |
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| 39 | TEXT_RENDER_STATIC = 1, |
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| 40 | TEXT_RENDER_DYNAMIC = 2 |
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| 41 | }; |
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[2036] | 42 | |
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[5343] | 43 | //! A Struct to handel Texture Coordinates for quads |
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| 44 | struct TexCoord |
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| 45 | { |
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| 46 | float minU; //!< The minimum U-Coordinate |
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| 47 | float maxU; //!< The maximum U-Coordinate |
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| 48 | float minV; //!< The minimum V-Coordinate |
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| 49 | float maxV; //!< The maximum V-Coordinate |
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| 50 | }; |
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[1853] | 51 | |
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[5343] | 52 | //! Represents one textElement. |
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| 53 | class Text : public Element2D |
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| 54 | { |
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| 55 | public: |
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| 56 | Text(const char* fontFile, unsigned int fontSize = TEXT_DEFAULT_SIZE, TEXT_RENDER_TYPE type = TEXT_RENDER_DYNAMIC); |
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| 57 | ~Text(); |
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| 58 | void init(); |
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[3245] | 59 | |
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[5343] | 60 | void setFont(const char* fontFile, unsigned int fontSize); |
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[5345] | 61 | |
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[5343] | 62 | void setType(TEXT_RENDER_TYPE type); |
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| 63 | void setText(const char* text, bool isExtern = false); |
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| 64 | /** @returns the String this Text displays */ |
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| 65 | inline const char* getText() const { return (externText == NULL)?this->text:this->externText; }; |
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| 66 | /** @param blending the blending intensity to set (between 0.0 and 1.0) */ |
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| 67 | inline void setBlending(float blending) { this->blending = blending; }; |
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| 68 | /** sets the Color of the Text to render (values in [0-1]) @param r red @param g green @param b blue */ |
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| 69 | void setColor(float r, float g, float b) { this->color = Vector(r,g,b); }; |
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| 70 | |
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| 71 | void createTexture(); |
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| 72 | |
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| 73 | virtual void draw() const; |
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| 74 | |
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| 75 | void debug() const; |
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| 76 | |
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| 77 | // helpers. |
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| 78 | static GLuint loadTexture(SDL_Surface* surface, TexCoord* texCoord); |
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| 79 | static int powerOfTwo(int input); |
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| 80 | |
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| 81 | private: |
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| 82 | Font* font; //!< Font of this text |
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| 83 | |
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| 84 | TEXT_RENDER_TYPE type; //!< The type of this Font. |
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| 85 | char* text; //!< The text to display |
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| 86 | const char* externText; //!< the text to Display from an external Source. |
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| 87 | Vector color; //!< The color of the font. |
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| 88 | float blending; //!< The blending intensity. |
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| 89 | |
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| 90 | // placement in openGL |
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[5345] | 91 | GLuint texture; //!< A GL-texture to hold the text (static Mode) |
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[5343] | 92 | TexCoord texCoord; //!< Texture-coordinates @todo fix this to have a struct |
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| 93 | float height; |
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| 94 | float width; |
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[1853] | 95 | }; |
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| 96 | |
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[5343] | 97 | #endif /* _TEXT_H */ |
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