47 lines
2.0 KiB
C++
47 lines
2.0 KiB
C++
/*******************
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* font_size_t.cpp *
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*******************/
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/****************************************************************************
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* Written By Marcio Teixeira 2019 - Aleph Objects, Inc. *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* To view a copy of the GNU General Public License, go to the following *
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* location: <https://www.gnu.org/licenses/>. *
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****************************************************************************/
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#include "../ftdi_extended.h"
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#if BOTH(FTDI_EXTENDED, TOUCH_UI_USE_UTF8)
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namespace FTDI {
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// Returns the height of a standard FTDI romfont
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uint8_t font_size_t::get_romfont_height(uint8_t font) {
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static const uint8_t tbl[] PROGMEM = {
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8, 8, 16, 16, 13, 17, 20, 22, 29, 38, 16, 20, 25, 28, 36, 49, 63, 83, 108
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};
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return pgm_read_byte(&tbl[font - 16]);
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}
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// Sets the scaling coefficient to match a romfont size
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font_size_t font_size_t::from_romfont(uint8_t font) {
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return font_size_t(uint32_t(std_height) * 256 / get_romfont_height(font));
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}
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// Returns the height of the font
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uint8_t font_size_t::get_height() const {
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return scale(std_height);
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}
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}
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#endif // FTDI_EXTENDED && TOUCH_UI_USE_UTF8
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