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a44e8b9921
* Update chars 0xA0-0xFF to match unicode * Update ui_text.hpp Update chars 0xA0-0xFF to match unicode * Use unicode 0xB0 for degree character * Clang
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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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 2, or (at your option)
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* 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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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "ui_text.hpp"
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namespace ui {
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Glyph Font::glyph(const char c) const {
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size_t index;
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if (c < c_start) {
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// Non-display C0 Control characters - map to blank (index 0)
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return {w, h, data};
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}
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// Handle gap in glyphs table for C1 Control characters 0x80-0x9F
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if (c < C1_CONTROL_CHARS_START) {
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// ASCII chars <0x80:
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index = c - c_start;
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} else if (c >= C1_CONTROL_CHARS_START + C1_CONTROL_CHARS_COUNT) {
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// Latin 1 chars 0xA0-0xFF
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index = c - c_start - C1_CONTROL_CHARS_COUNT;
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} else {
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// C1 Control characters - map to blank
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return {w, h, data};
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}
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if (index >= c_count) { // Latin Extended characters > 0xFF - not supported
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return {w, h, data};
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} else {
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return {w, h, &data[index * data_stride]};
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}
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}
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Dim Font::line_height() const {
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return h;
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}
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Dim Font::char_width() const {
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return w;
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}
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Size Font::size_of(const std::string s) const {
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Size size;
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for (const auto c : s) {
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const auto glyph_data = glyph(c);
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size = {
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size.width() + glyph_data.w(),
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std::max(size.height(), glyph_data.h())};
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}
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return size;
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}
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} /* namespace ui */
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