| 1 | /* |
| 2 | |
| 3 | u8log_u8g2.c |
| 4 | |
| 5 | |
| 6 | Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) |
| 7 | |
| 8 | Copyright (c) 2018, olikraus@gmail.com |
| 9 | All rights reserved. |
| 10 | |
| 11 | Redistribution and use in source and binary forms, with or without modification, |
| 12 | are permitted provided that the following conditions are met: |
| 13 | |
| 14 | * Redistributions of source code must retain the above copyright notice, this list |
| 15 | of conditions and the following disclaimer. |
| 16 | |
| 17 | * Redistributions in binary form must reproduce the above copyright notice, this |
| 18 | list of conditions and the following disclaimer in the documentation and/or other |
| 19 | materials provided with the distribution. |
| 20 | |
| 21 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| 22 | CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 23 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 24 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 25 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
| 26 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 27 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 28 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 29 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 30 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 31 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 32 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 33 | ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 34 | |
| 35 | */ |
| 36 | |
| 37 | #include "u8g2.h" |
| 38 | /* |
| 39 | Draw the u8log text at the specified x/y position. |
| 40 | x/y position is the reference position of the first char of the first line. |
| 41 | the line height is |
| 42 | u8g2_GetAscent(u8g2) - u8g2_GetDescent(u8g2) + line_height_offset; |
| 43 | line_height_offset can be set with u8log_SetLineHeightOffset() |
| 44 | Use |
| 45 | u8g2_SetFontRefHeightText(u8g2_t *u8g2); |
| 46 | u8g2_SetFontRefHeightExtendedText(u8g2_t *u8g2); |
| 47 | u8g2_SetFontRefHeightAll(u8g2_t *u8g2); |
| 48 | to change the return values for u8g2_GetAscent and u8g2_GetDescent |
| 49 | |
| 50 | */ |
| 51 | void u8g2_DrawLog(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8log_t *u8log) |
| 52 | { |
| 53 | u8g2_uint_t disp_x, disp_y; |
| 54 | uint8_t buf_x, buf_y; |
| 55 | uint8_t c; |
| 56 | |
| 57 | disp_y = y; |
| 58 | u8g2_SetFontDirection(u8g2, 0); |
| 59 | for( buf_y = 0; buf_y < u8log->height; buf_y++ ) |
| 60 | { |
| 61 | disp_x = x; |
| 62 | for( buf_x = 0; buf_x < u8log->width; buf_x++ ) |
| 63 | { |
| 64 | c = u8log->screen_buffer[buf_y * u8log->width + buf_x]; |
| 65 | disp_x += u8g2_DrawGlyph(u8g2, disp_x, disp_y, c); |
| 66 | } |
| 67 | disp_y += u8g2_GetAscent(u8g2) - u8g2_GetDescent(u8g2); |
| 68 | disp_y += u8log->line_height_offset; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | /* |
| 73 | u8lib callback for u8g2 |
| 74 | |
| 75 | Only font direction 0 is supported: u8g2_SetFontDirection(u8g2, 0) |
| 76 | Use |
| 77 | u8g2_SetFontRefHeightText(u8g2_t *u8g2); |
| 78 | u8g2_SetFontRefHeightExtendedText(u8g2_t *u8g2); |
| 79 | u8g2_SetFontRefHeightAll(u8g2_t *u8g2); |
| 80 | to change the top offset and the line height and |
| 81 | u8log_SetLineHeightOffset(u8log_t *u8log, int8_t line_height_offset) |
| 82 | to change the line height. |
| 83 | |
| 84 | */ |
| 85 | void u8log_u8g2_cb(u8log_t * u8log) |
| 86 | { |
| 87 | u8g2_t *u8g2 = (u8g2_t *)(u8log->aux_data); |
| 88 | if ( u8log->is_redraw_line || u8log->is_redraw_all ) |
| 89 | { |
| 90 | u8g2_FirstPage(u8g2); |
| 91 | do |
| 92 | { |
| 93 | u8g2_DrawLog( u8g2, 0, u8g2_GetAscent(u8g2), u8log); |
| 94 | } |
| 95 | while( u8g2_NextPage(u8g2) ); |
| 96 | } |
| 97 | } |
| 98 | |