mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-13 09:58:09 +00:00
148 lines
3.9 KiB
C
148 lines
3.9 KiB
C
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <trezor_rtl.h>
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#include "fonts.h"
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// include selectively based on the SCons variables
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#ifdef TREZOR_FONT_NORMAL_ENABLE
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#include TREZOR_FONT_NORMAL_INCLUDE
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#endif
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#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
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#include TREZOR_FONT_DEMIBOLD_INCLUDE
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#endif
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#ifdef TREZOR_FONT_BOLD_ENABLE
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#include TREZOR_FONT_BOLD_INCLUDE
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#endif
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#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
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#include TREZOR_FONT_NORMAL_UPPER_INCLUDE
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#endif
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#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
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#include TREZOR_FONT_BOLD_UPPER_INCLUDE
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#endif
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#ifdef TREZOR_FONT_MONO_ENABLE
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#include TREZOR_FONT_MONO_INCLUDE
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#endif
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#ifdef TREZOR_FONT_BIG_ENABLE
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#include TREZOR_FONT_BIG_INCLUDE
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#endif
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#ifdef TREZOR_FONT_SUB_ENABLE
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#include TREZOR_FONT_SUB_INCLUDE
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#endif
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#define PASTER(font_name) font_name##_info
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#define FONT_INFO(font_name) PASTER(font_name)
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const font_info_t *get_font_info(font_id_t font_id) {
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switch (font_id) {
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#ifdef TREZOR_FONT_NORMAL_ENABLE
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case FONT_NORMAL:
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return &FONT_INFO(TREZOR_FONT_NORMAL_NAME);
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#endif
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#ifdef TREZOR_FONT_BOLD_ENABLE
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case FONT_BOLD:
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return &FONT_INFO(TREZOR_FONT_BOLD_NAME);
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#endif
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#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
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case FONT_DEMIBOLD:
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return &FONT_INFO(TREZOR_FONT_DEMIBOLD_NAME);
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#endif
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#ifdef TREZOR_FONT_MONO_ENABLE
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case FONT_MONO:
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return &FONT_INFO(TREZOR_FONT_MONO_NAME);
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#endif
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#ifdef TREZOR_FONT_BIG_ENABLE
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case FONT_BIG:
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return &FONT_INFO(TREZOR_FONT_BIG_NAME);
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#endif
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#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
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case FONT_NORMAL_UPPER:
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return &FONT_INFO(TREZOR_FONT_NORMAL_UPPER_NAME);
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#endif
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#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
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case FONT_BOLD_UPPER:
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return &FONT_INFO(TREZOR_FONT_BOLD_UPPER_NAME);
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#endif
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#ifdef TREZOR_FONT_SUB_ENABLE
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case FONT_SUB:
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return &FONT_INFO(TREZOR_FONT_SUB_NAME);
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#endif
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default:
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return NULL;
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}
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}
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const uint8_t *font_nonprintable_glyph(font_id_t font) {
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const font_info_t *font_info = get_font_info(font);
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return font_info ? font_info->glyph_nonprintable : NULL;
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}
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const uint8_t *font_get_glyph(font_id_t font, char c) {
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// support only printable ASCII character
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if (c >= ' ' && c < 0x7F) {
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const font_info_t *font_info = get_font_info(font);
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if (font_info == NULL) {
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return NULL;
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}
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return font_info->glyph_data[c - ' '];
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}
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return font_nonprintable_glyph(font);
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}
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int font_baseline(font_id_t font) {
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const font_info_t *font_info = get_font_info(font);
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return font_info ? font_info->baseline : 0;
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}
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int font_max_height(font_id_t font) {
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const font_info_t *font_info = get_font_info(font);
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return font_info ? font_info->max_height : 0;
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}
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// compute the width of the ASCII text (in pixels)
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int font_text_width(font_id_t font, const char *text, int textlen) {
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int width = 0;
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// determine text length if not provided
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if (textlen < 0) {
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textlen = strlen(text);
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}
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const font_info_t *font_info = get_font_info(font);
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if (font_info == NULL) {
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return 0;
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}
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for (int i = 0; i < textlen; ++i) {
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const uint8_t *glyph;
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char c = text[i];
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if (c >= ' ' && c < 0x7F) {
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glyph = font_info->glyph_data[c - ' '];
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} else {
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glyph = font_info->glyph_nonprintable;
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}
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const uint8_t adv = glyph[2]; // advance
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width += adv;
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}
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return width;
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}
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