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98 lines
3.2 KiB
98 lines
3.2 KiB
/* |
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u8log_u8g2.c |
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Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) |
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Copyright (c) 2018, olikraus@gmail.com |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, this list |
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of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, this |
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list of conditions and the following disclaimer in the documentation and/or other |
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materials provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "u8g2.h" |
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/* |
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Draw the u8log text at the specified x/y position. |
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x/y position is the reference position of the first char of the first line. |
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the line height is |
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u8g2_GetAscent(u8g2) - u8g2_GetDescent(u8g2) + line_height_offset; |
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line_height_offset can be set with u8log_SetLineHeightOffset() |
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Use |
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u8g2_SetFontRefHeightText(u8g2_t *u8g2); |
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u8g2_SetFontRefHeightExtendedText(u8g2_t *u8g2); |
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u8g2_SetFontRefHeightAll(u8g2_t *u8g2); |
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to change the return values for u8g2_GetAscent and u8g2_GetDescent |
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*/ |
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void u8g2_DrawLog(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8log_t *u8log) |
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{ |
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u8g2_uint_t disp_x, disp_y; |
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uint8_t buf_x, buf_y; |
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uint8_t c; |
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disp_y = y; |
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u8g2_SetFontDirection(u8g2, 0); |
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for( buf_y = 0; buf_y < u8log->height; buf_y++ ) |
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{ |
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disp_x = x; |
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for( buf_x = 0; buf_x < u8log->width; buf_x++ ) |
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{ |
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c = u8log->screen_buffer[buf_y * u8log->width + buf_x]; |
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disp_x += u8g2_DrawGlyph(u8g2, disp_x, disp_y, c); |
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} |
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disp_y += u8g2_GetAscent(u8g2) - u8g2_GetDescent(u8g2); |
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disp_y += u8log->line_height_offset; |
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} |
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} |
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/* |
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u8lib callback for u8g2 |
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Only font direction 0 is supported: u8g2_SetFontDirection(u8g2, 0) |
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Use |
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u8g2_SetFontRefHeightText(u8g2_t *u8g2); |
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u8g2_SetFontRefHeightExtendedText(u8g2_t *u8g2); |
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u8g2_SetFontRefHeightAll(u8g2_t *u8g2); |
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to change the top offset and the line height and |
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u8log_SetLineHeightOffset(u8log_t *u8log, int8_t line_height_offset) |
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to change the line height. |
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*/ |
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void u8log_u8g2_cb(u8log_t * u8log) |
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{ |
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u8g2_t *u8g2 = (u8g2_t *)(u8log->aux_data); |
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if ( u8log->is_redraw_line || u8log->is_redraw_all ) |
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{ |
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u8g2_FirstPage(u8g2); |
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do |
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{ |
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u8g2_DrawLog( u8g2, 0, u8g2_GetAscent(u8g2), u8log); |
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} |
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while( u8g2_NextPage(u8g2) ); |
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} |
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} |
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