root / proj / libs / graph / include / font.h @ 331
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| 1 | 182 | up20180642 | #ifndef FONT_H_INCLUDED
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| 2 | #define FONT_H_INCLUDED
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| 4 | 314 | up20180642 | struct font;
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| 5 | 319 | up20180642 | /**
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| 6 | * @brief Font. Represents a set of glyphs that can be drawn for showing text.
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| 7 | */
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| 8 | 314 | up20180642 | typedef struct font font_t; |
| 9 | 319 | up20180642 | /**
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| 10 | * @brief Construct font.
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| 11 | *
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| 12 | * The font is constructed from a provided path. That path is required to
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| 13 | * contain glyphs with the name "ascii???.xpm2", files with format XPM2 where
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| 14 | * instead of having "???" we have 3-digit ASCII codes, where the glyph with
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| 15 | * that name map to that XPM2 file.
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| 16 | * @param s Path to directory
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| 17 | * @return Pointer to font
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| 18 | */
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| 19 | 314 | up20180642 | font_t* (font_ctor)(const char *s); |
| 20 | 319 | up20180642 | /**
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| 21 | * @brief Destruct font.
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| 22 | * @param p Pointer to font to be destroyed
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| 23 | */
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| 24 | void (font_dtor)(font_t *p);
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| 25 | 314 | up20180642 | |
| 26 | 319 | up20180642 | /**
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| 27 | * @brief Initialize font stuff.
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| 28 | *
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| 29 | * More specifically, this involves loading the default font, which is currently consolas.
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| 30 | * @return SUCCESS if initialization was successful, false otherwise
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| 31 | */
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| 32 | 314 | up20180642 | int (font_init)(void); |
| 33 | 319 | up20180642 | /**
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| 34 | * @brief Get default font.
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| 35 | *
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| 36 | * Currently, the default font is Consolas.
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| 37 | * @return Pointer to default font
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| 38 | */
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| 39 | 314 | up20180642 | const font_t* font_get_default(void); |
| 40 | 319 | up20180642 | /**
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| 41 | * @brief Get Consolas font.
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| 42 | * @return Pointer to Consolas font
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| 43 | */
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| 44 | 314 | up20180642 | const font_t* font_get_consolas(void); |
| 45 | 319 | up20180642 | /**
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| 46 | * @brief Free resources used on initialization of fonts.
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| 47 | */
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| 48 | void (font_free)(void); |
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| 49 | 314 | up20180642 | |
| 50 | 319 | up20180642 | /**
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| 51 | * @brief Enumeration of vertical alignment schemes.
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| 52 | */
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| 53 | 314 | up20180642 | typedef enum{ |
| 54 | 188 | up20180642 | text_valign_top = -1,
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| 55 | text_valign_center = 0,
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| 56 | text_valign_bottom = 1
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| 57 | 314 | up20180642 | } text_valign; |
| 58 | 319 | up20180642 | /**
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| 59 | * @brief Enumeration of horizontal alignment schemes.
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| 60 | */
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| 61 | 314 | up20180642 | typedef enum{ |
| 62 | 188 | up20180642 | text_halign_left = -1,
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| 63 | text_halign_center = 0,
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| 64 | text_halign_right = 1
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| 65 | 314 | up20180642 | } text_halign; |
| 66 | 188 | up20180642 | |
| 67 | 183 | up20180642 | struct text;
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| 68 | 319 | up20180642 | /**
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| 69 | * @brief Drawable text.
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| 70 | */
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| 71 | 183 | up20180642 | typedef struct text text_t; |
| 72 | 319 | up20180642 | /**
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| 73 | * @brief Construct text.
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| 74 | * @param fnt Font to draw the text
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| 75 | * @param txt String to be drawn
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| 76 | * @return Pointer to constructed text
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| 77 | */
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| 78 | 183 | up20180642 | text_t* (text_ctor)(const font_t *fnt, const char *txt); |
| 79 | 319 | up20180642 | /**
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| 80 | * @brief Destruct text.
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| 81 | * @param p Pointer to text to be destroyed
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| 82 | */
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| 83 | 183 | up20180642 | void (text_dtor)(text_t *p);
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| 84 | 319 | up20180642 | /**
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| 85 | * @brief Set text string.
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| 86 | * @param p Pointer to text
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| 87 | * @param txt String to be set
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| 88 | */
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| 89 | 314 | up20180642 | void (text_set_string)(text_t *p, const char *txt); |
| 90 | 319 | up20180642 | /**
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| 91 | * @brief Set text position.
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| 92 | * @param p Pointer to text
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| 93 | * @param x X-position of the text
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| 94 | * @param y Y-position of the text
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| 95 | */
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| 96 | 188 | up20180642 | void (text_set_pos) (text_t *p, int16_t x, int16_t y);
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| 97 | 319 | up20180642 | /**
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| 98 | 323 | up20180642 | * @brief Set text size (letter size, in pixels).
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| 99 | 319 | up20180642 | * @param p Pointer to text
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| 100 | * @param size Letter size of the text
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| 101 | */
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| 102 | 323 | up20180642 | void (text_set_size) (text_t *p, uint16_t size);
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| 103 | 319 | up20180642 | /**
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| 104 | * @brief Set text color.
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| 105 | * @param p Pointer to text
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| 106 | * @param color Text color
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| 107 | */
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| 108 | 188 | up20180642 | void (text_set_color) (text_t *p, uint32_t color);
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| 109 | 319 | up20180642 | /**
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| 110 | * @brief Set text vertical alignment.
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| 111 | * @param p Pointer to text
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| 112 | * @param valign Vertical alignment of the text
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| 113 | */
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| 114 | 314 | up20180642 | void (text_set_valign)(text_t *p, text_valign valign);
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| 115 | 319 | up20180642 | /**
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| 116 | * @brief Set text horizontal alignment.
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| 117 | * @param p Pointer to text
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| 118 | * @param halign Horizontal alignment of the text
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| 119 | */
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| 120 | 314 | up20180642 | void (text_set_halign)(text_t *p, text_halign halign);
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| 121 | 319 | up20180642 | /**
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| 122 | * @brief Get string of the text.
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| 123 | * @param p Pointer to text
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| 124 | * @return Pointer to string
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| 125 | */
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| 126 | const char* (text_get_string)(const text_t *p); |
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| 127 | /**
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| 128 | * @brief Get text x-position.
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| 129 | * @param p Pointer to text
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| 130 | * @return X-position of text
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| 131 | */
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| 132 | 297 | up20180642 | int16_t (text_get_x) (const text_t *p);
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| 133 | 319 | up20180642 | /**
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| 134 | * @brief Get text y-position.
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| 135 | * @param p Pointer to text
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| 136 | * @return Y-position of text
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| 137 | */
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| 138 | 297 | up20180642 | int16_t (text_get_y) (const text_t *p);
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| 139 | 319 | up20180642 | /**
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| 140 | * @brief Draw text on the screen buffer.
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| 141 | * @param p Pointer to text
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| 142 | * @return SUCCESS if operation was successful, false otherwise
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| 143 | */
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| 144 | 314 | up20180642 | int (text_draw) (const text_t *p); |
| 145 | 182 | up20180642 | |
| 146 | #endif //FONT_H_INCLUDED |