test public
Dependencies: HttpServer_snapshot_mbed-os
mbed-gr-libs/AsciiFont/AsciiFont.h@0:e9fd5575b10e, 2019-10-18 (annotated)
- Committer:
- anhtran
- Date:
- Fri Oct 18 03:09:43 2019 +0000
- Revision:
- 0:e9fd5575b10e
abc
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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anhtran | 0:e9fd5575b10e | 1 | /* Copyright (c) 2016 dkato |
anhtran | 0:e9fd5575b10e | 2 | * SPDX-License-Identifier: Apache-2.0 |
anhtran | 0:e9fd5575b10e | 3 | * |
anhtran | 0:e9fd5575b10e | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
anhtran | 0:e9fd5575b10e | 5 | * you may not use this file except in compliance with the License. |
anhtran | 0:e9fd5575b10e | 6 | * You may obtain a copy of the License at |
anhtran | 0:e9fd5575b10e | 7 | * |
anhtran | 0:e9fd5575b10e | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
anhtran | 0:e9fd5575b10e | 9 | * |
anhtran | 0:e9fd5575b10e | 10 | * Unless required by applicable law or agreed to in writing, software |
anhtran | 0:e9fd5575b10e | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
anhtran | 0:e9fd5575b10e | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
anhtran | 0:e9fd5575b10e | 13 | * See the License for the specific language governing permissions and |
anhtran | 0:e9fd5575b10e | 14 | * limitations under the License. |
anhtran | 0:e9fd5575b10e | 15 | */ |
anhtran | 0:e9fd5575b10e | 16 | /**************************************************************************//** |
anhtran | 0:e9fd5575b10e | 17 | * @file AsciiFont.h |
anhtran | 0:e9fd5575b10e | 18 | * @brief AsciiFont API |
anhtran | 0:e9fd5575b10e | 19 | ******************************************************************************/ |
anhtran | 0:e9fd5575b10e | 20 | |
anhtran | 0:e9fd5575b10e | 21 | #ifndef ASCII_FONT_H |
anhtran | 0:e9fd5575b10e | 22 | #define ASCII_FONT_H |
anhtran | 0:e9fd5575b10e | 23 | |
anhtran | 0:e9fd5575b10e | 24 | #include "mbed.h" |
anhtran | 0:e9fd5575b10e | 25 | |
anhtran | 0:e9fd5575b10e | 26 | /** Draw the character of the ASCII code. |
anhtran | 0:e9fd5575b10e | 27 | * |
anhtran | 0:e9fd5575b10e | 28 | * Example |
anhtran | 0:e9fd5575b10e | 29 | * @code |
anhtran | 0:e9fd5575b10e | 30 | * #include "mbed.h" |
anhtran | 0:e9fd5575b10e | 31 | * #include "AsciiFont.h" |
anhtran | 0:e9fd5575b10e | 32 | * |
anhtran | 0:e9fd5575b10e | 33 | * #define WIDTH (12) |
anhtran | 0:e9fd5575b10e | 34 | * #define HEIGHT (16) |
anhtran | 0:e9fd5575b10e | 35 | * #define BYTE_PER_PIXEL (1u) |
anhtran | 0:e9fd5575b10e | 36 | * #define STRIDE (((WIDTH * BYTE_PER_PIXEL) + 7u) & ~7u) //multiple of 8 |
anhtran | 0:e9fd5575b10e | 37 | * |
anhtran | 0:e9fd5575b10e | 38 | * uint8_t text_field[STRIDE * HEIGHT]; |
anhtran | 0:e9fd5575b10e | 39 | * |
anhtran | 0:e9fd5575b10e | 40 | * //for debug |
anhtran | 0:e9fd5575b10e | 41 | * void print_text_field() { |
anhtran | 0:e9fd5575b10e | 42 | * int idx = 0; |
anhtran | 0:e9fd5575b10e | 43 | * |
anhtran | 0:e9fd5575b10e | 44 | * for (int i = 0; i < HEIGHT; i++) { |
anhtran | 0:e9fd5575b10e | 45 | * for (int j = 0; j < STRIDE; j++) { |
anhtran | 0:e9fd5575b10e | 46 | * printf("%02x", text_field[idx++]); |
anhtran | 0:e9fd5575b10e | 47 | * } |
anhtran | 0:e9fd5575b10e | 48 | * printf("\r\n"); |
anhtran | 0:e9fd5575b10e | 49 | * } |
anhtran | 0:e9fd5575b10e | 50 | * printf("\r\n"); |
anhtran | 0:e9fd5575b10e | 51 | * } |
anhtran | 0:e9fd5575b10e | 52 | * |
anhtran | 0:e9fd5575b10e | 53 | * int main() { |
anhtran | 0:e9fd5575b10e | 54 | * AsciiFont ascii_font(text_field, WIDTH, HEIGHT, STRIDE, BYTE_PER_PIXEL); |
anhtran | 0:e9fd5575b10e | 55 | * |
anhtran | 0:e9fd5575b10e | 56 | * ascii_font.Erase(0xcc); |
anhtran | 0:e9fd5575b10e | 57 | * ascii_font.DrawStr("AB", 0, 0, 0x11, 1); |
anhtran | 0:e9fd5575b10e | 58 | * ascii_font.DrawChar('C', AsciiFont::CHAR_PIX_WIDTH, |
anhtran | 0:e9fd5575b10e | 59 | * AsciiFont::CHAR_PIX_HEIGHT, 0x22, 1); |
anhtran | 0:e9fd5575b10e | 60 | * print_text_field(); //debug print |
anhtran | 0:e9fd5575b10e | 61 | * |
anhtran | 0:e9fd5575b10e | 62 | * ascii_font.Erase(); |
anhtran | 0:e9fd5575b10e | 63 | * ascii_font.DrawStr("D", 0, 0, 0xef, 2); |
anhtran | 0:e9fd5575b10e | 64 | * print_text_field(); //debug print |
anhtran | 0:e9fd5575b10e | 65 | * |
anhtran | 0:e9fd5575b10e | 66 | * ascii_font.Erase(0x11, 6, 0, 6, 8); |
anhtran | 0:e9fd5575b10e | 67 | * print_text_field(); //debug print |
anhtran | 0:e9fd5575b10e | 68 | * } |
anhtran | 0:e9fd5575b10e | 69 | * @endcode |
anhtran | 0:e9fd5575b10e | 70 | */ |
anhtran | 0:e9fd5575b10e | 71 | |
anhtran | 0:e9fd5575b10e | 72 | class AsciiFont { |
anhtran | 0:e9fd5575b10e | 73 | public: |
anhtran | 0:e9fd5575b10e | 74 | |
anhtran | 0:e9fd5575b10e | 75 | /** Constructor: Initializes AsciiFont. |
anhtran | 0:e9fd5575b10e | 76 | * |
anhtran | 0:e9fd5575b10e | 77 | * @param p_buf Text field address |
anhtran | 0:e9fd5575b10e | 78 | * @param width Text field width |
anhtran | 0:e9fd5575b10e | 79 | * @param height Text field height |
anhtran | 0:e9fd5575b10e | 80 | * @param stride Buffer stride |
anhtran | 0:e9fd5575b10e | 81 | * @param colour Background color |
anhtran | 0:e9fd5575b10e | 82 | * @param byte_per_pixel Byte per pixel |
anhtran | 0:e9fd5575b10e | 83 | */ |
anhtran | 0:e9fd5575b10e | 84 | AsciiFont(uint8_t * p_buf, int width, int height, int stride, int byte_per_pixel, uint32_t const colour = 0); |
anhtran | 0:e9fd5575b10e | 85 | |
anhtran | 0:e9fd5575b10e | 86 | /** Erase text field |
anhtran | 0:e9fd5575b10e | 87 | * |
anhtran | 0:e9fd5575b10e | 88 | */ |
anhtran | 0:e9fd5575b10e | 89 | void Erase(); |
anhtran | 0:e9fd5575b10e | 90 | |
anhtran | 0:e9fd5575b10e | 91 | /** Erase text field |
anhtran | 0:e9fd5575b10e | 92 | * |
anhtran | 0:e9fd5575b10e | 93 | * @param colour Background color |
anhtran | 0:e9fd5575b10e | 94 | */ |
anhtran | 0:e9fd5575b10e | 95 | void Erase(uint32_t const colour); |
anhtran | 0:e9fd5575b10e | 96 | |
anhtran | 0:e9fd5575b10e | 97 | /** Erase text field |
anhtran | 0:e9fd5575b10e | 98 | * |
anhtran | 0:e9fd5575b10e | 99 | * @param colour Background color |
anhtran | 0:e9fd5575b10e | 100 | * @param x Erase start position of x coordinate |
anhtran | 0:e9fd5575b10e | 101 | * @param y Erase start position of y coordinate |
anhtran | 0:e9fd5575b10e | 102 | * @param width Erase field width |
anhtran | 0:e9fd5575b10e | 103 | * @param height Erase field height |
anhtran | 0:e9fd5575b10e | 104 | */ |
anhtran | 0:e9fd5575b10e | 105 | void Erase(uint32_t const colour, int x, int y, int width, int height); |
anhtran | 0:e9fd5575b10e | 106 | |
anhtran | 0:e9fd5575b10e | 107 | /** Draw a string |
anhtran | 0:e9fd5575b10e | 108 | * |
anhtran | 0:e9fd5575b10e | 109 | * @param str String |
anhtran | 0:e9fd5575b10e | 110 | * @param x Drawing start position of x coordinate |
anhtran | 0:e9fd5575b10e | 111 | * @param y Drawing start position of y coordinate |
anhtran | 0:e9fd5575b10e | 112 | * @param color Font color |
anhtran | 0:e9fd5575b10e | 113 | * @param font_size Font size (>=1) |
anhtran | 0:e9fd5575b10e | 114 | * @param max_char_num The maximum number of characters |
anhtran | 0:e9fd5575b10e | 115 | * @return The drawn number of characters |
anhtran | 0:e9fd5575b10e | 116 | */ |
anhtran | 0:e9fd5575b10e | 117 | int DrawStr(const char * str, int x, int y, uint32_t const colour, int font_size = 1, uint16_t const max_char_num = 0xffff); |
anhtran | 0:e9fd5575b10e | 118 | |
anhtran | 0:e9fd5575b10e | 119 | /** Draw a character |
anhtran | 0:e9fd5575b10e | 120 | * |
anhtran | 0:e9fd5575b10e | 121 | * @param x Drawing start position of x coordinate |
anhtran | 0:e9fd5575b10e | 122 | * @param y Drawing start position of y coordinate |
anhtran | 0:e9fd5575b10e | 123 | * @param color Font color |
anhtran | 0:e9fd5575b10e | 124 | * @param font_size Font size (>=1) |
anhtran | 0:e9fd5575b10e | 125 | * @return true if successfull |
anhtran | 0:e9fd5575b10e | 126 | */ |
anhtran | 0:e9fd5575b10e | 127 | bool DrawChar(char c, int x, int y, uint32_t const colour, int font_size = 1); |
anhtran | 0:e9fd5575b10e | 128 | |
anhtran | 0:e9fd5575b10e | 129 | /** The pixel width of a character. (font_size=1) |
anhtran | 0:e9fd5575b10e | 130 | * |
anhtran | 0:e9fd5575b10e | 131 | */ |
anhtran | 0:e9fd5575b10e | 132 | static const int CHAR_PIX_WIDTH = 6; |
anhtran | 0:e9fd5575b10e | 133 | |
anhtran | 0:e9fd5575b10e | 134 | /** The pixel height of a character. (font_size=1) |
anhtran | 0:e9fd5575b10e | 135 | * |
anhtran | 0:e9fd5575b10e | 136 | */ |
anhtran | 0:e9fd5575b10e | 137 | static const int CHAR_PIX_HEIGHT = 8; |
anhtran | 0:e9fd5575b10e | 138 | |
anhtran | 0:e9fd5575b10e | 139 | private: |
anhtran | 0:e9fd5575b10e | 140 | uint8_t * p_text_field; |
anhtran | 0:e9fd5575b10e | 141 | int max_width; |
anhtran | 0:e9fd5575b10e | 142 | int max_height; |
anhtran | 0:e9fd5575b10e | 143 | int buf_stride; |
anhtran | 0:e9fd5575b10e | 144 | int pixel_num; |
anhtran | 0:e9fd5575b10e | 145 | uint32_t background_colour; |
anhtran | 0:e9fd5575b10e | 146 | }; |
anhtran | 0:e9fd5575b10e | 147 | #endif |