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