From d746c79fb8621bf6daace5133e21f49bfcbedc21 Mon Sep 17 00:00:00 2001 From: Pavol Rusnak Date: Mon, 2 May 2016 16:50:36 +0200 Subject: [PATCH] add display.text_width --- extmod/modtrezorui/modtrezorui-display.h | 80 +++++++++++++++--------- src/apps/homescreen/layout_homescreen.py | 2 +- src/apps/playground/__init__.py | 2 +- 3 files changed, 53 insertions(+), 31 deletions(-) diff --git a/extmod/modtrezorui/modtrezorui-display.h b/extmod/modtrezorui/modtrezorui-display.h index 9b0058856..2b117dda6 100644 --- a/extmod/modtrezorui/modtrezorui-display.h +++ b/extmod/modtrezorui/modtrezorui-display.h @@ -76,48 +76,48 @@ static void display_icon(uint8_t x, uint8_t y, uint8_t w, uint8_t h, void *data, display_update(); } +static const uint8_t *get_glyph(uint8_t font, uint8_t c) { + if (c >= ' ' && c <= '~') { + // do nothing - valid ASCII + } else + // UTF-8 handling: https://en.wikipedia.org/wiki/UTF-8#Description + if (c >= 0xC0) { + // bytes 11xxxxxx are first byte of UTF-8 characters + c = '_'; + } else { + // bytes 10xxxxxx are successive UTF-8 characters + return 0; + } + switch (font) { + case 0: + return Font_RobotoMono_Regular_20[c - ' ']; + case 1: + return Font_Roboto_Regular_20[c - ' ']; + case 2: + return Font_Roboto_Bold_20[c - ' ']; + } + return 0; +} + // first two bytes are width and height of the glyph // third, fourth and fifth bytes are advance, bearingX and bearingY of the horizontal metrics of the glyph // rest is packed 4-bit glyph data static void display_text(uint8_t x, uint8_t y, uint8_t *text, int textlen, uint8_t font, uint16_t fgcolor, uint16_t bgcolor) { - int xx = x; - const uint8_t *g; - uint8_t c; + uint32_t px = x; uint16_t colortable[16]; set_color_table(colortable, fgcolor, bgcolor); // render glyphs for (int i = 0; i < textlen; i++) { - if (text[i] >= ' ' && text[i] <= '~') { - c = text[i]; - } else - // UTF-8 handling: https://en.wikipedia.org/wiki/UTF-8#Description - if (text[i] >= 0xC0) { - // bytes 11xxxxxx are first byte of UTF-8 characters - c = '_'; - } else { - // bytes 10xxxxxx are successive UTF-8 characters - continue; - } - switch (font) { - case 0: - g = Font_RobotoMono_Regular_20[c - ' ']; - break; - case 1: - g = Font_Roboto_Regular_20[c - ' ']; - break; - case 2: - g = Font_Roboto_Bold_20[c - ' ']; - break; - default: - return; // unknown font -> abort - } + const uint8_t *g = get_glyph(font, text[i]); + if (!g) continue; // g[0], g[1] = width, height // g[2] = advance // g[3], g[4] = bearingX, bearingY if (g[0] && g[1]) { - display_set_window(xx + (int8_t)(g[3]), y - (int8_t)(g[4]), g[0], g[1]); + display_set_window(px + (int8_t)(g[3]), y - (int8_t)(g[4]), g[0], g[1]); for (int j = 0; j < g[0] * g[1]; j++) { + uint8_t c; if (j % 2 == 0) { c = g[5 + j/2] >> 4; } else { @@ -128,8 +128,19 @@ static void display_text(uint8_t x, uint8_t y, uint8_t *text, int textlen, uint8 } display_update(); } - xx += g[2]; + px += g[2]; + } +} + +// compute the width of the text (in pixels) +static uint32_t display_text_width(uint8_t *text, int textlen, uint8_t font) { + uint32_t w = 0; + for (int i = 0; i < textlen; i++) { + const uint8_t *g = get_glyph(font, text[i]); + if (!g) continue; + w += g[2]; } + return w; } static void display_qrcode(uint8_t x, uint8_t y, char *data, int datalen, int scale) { @@ -321,6 +332,16 @@ STATIC mp_obj_t mod_TrezorUi_Display_text(size_t n_args, const mp_obj_t *args) { } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_TrezorUi_Display_text_obj, 7, 7, mod_TrezorUi_Display_text); +// def Display.text_width(self, text: bytes, font: int) -> int +STATIC mp_obj_t mod_TrezorUi_Display_text_width(mp_obj_t self, mp_obj_t text, mp_obj_t font) { + mp_buffer_info_t bufinfo; + mp_get_buffer_raise(text, &bufinfo, MP_BUFFER_READ); + mp_int_t f = mp_obj_get_int(font); + uint32_t w = display_text_width(bufinfo.buf, bufinfo.len, f); + return MP_OBJ_NEW_SMALL_INT(w); +} +STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_TrezorUi_Display_text_width_obj, mod_TrezorUi_Display_text_width); + // def Display.qrcode(self, x: int, y: int, data: bytes, scale: int) -> None STATIC mp_obj_t mod_TrezorUi_Display_qrcode(size_t n_args, const mp_obj_t *args) { mp_int_t x = mp_obj_get_int(args[1]); @@ -416,6 +437,7 @@ STATIC const mp_rom_map_elem_t mod_TrezorUi_Display_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_image), MP_ROM_PTR(&mod_TrezorUi_Display_image_obj) }, { MP_ROM_QSTR(MP_QSTR_icon), MP_ROM_PTR(&mod_TrezorUi_Display_icon_obj) }, { MP_ROM_QSTR(MP_QSTR_text), MP_ROM_PTR(&mod_TrezorUi_Display_text_obj) }, + { MP_ROM_QSTR(MP_QSTR_text_width), MP_ROM_PTR(&mod_TrezorUi_Display_text_width_obj) }, { MP_ROM_QSTR(MP_QSTR_qrcode), MP_ROM_PTR(&mod_TrezorUi_Display_qrcode_obj) }, { MP_ROM_QSTR(MP_QSTR_loader), MP_ROM_PTR(&mod_TrezorUi_Display_loader_obj) }, { MP_ROM_QSTR(MP_QSTR_orientation), MP_ROM_PTR(&mod_TrezorUi_Display_orientation_obj) }, diff --git a/src/apps/homescreen/layout_homescreen.py b/src/apps/homescreen/layout_homescreen.py index 1f2b2c09e..f365b64b6 100644 --- a/src/apps/homescreen/layout_homescreen.py +++ b/src/apps/homescreen/layout_homescreen.py @@ -7,7 +7,7 @@ def layout_homescreen(): # ui.display.bar(0, 0, 240, 240, ui.WHITE) - f = open('apps/homescreen/trezor.toig', 'r') + f = open('apps/homescreen/trezor.toig', 'rb') def func(foreground): f.seek(0) diff --git a/src/apps/playground/__init__.py b/src/apps/playground/__init__.py index 95cae38de..00878f586 100644 --- a/src/apps/playground/__init__.py +++ b/src/apps/playground/__init__.py @@ -13,7 +13,7 @@ def layout_tap_to_confirm(address, amount, currency): ui.display.text(10, 140, address[:18], ui.MONO, ui.BLACK, ui.WHITE) ui.display.text(10, 160, address[18:], ui.MONO, ui.BLACK, ui.WHITE) - f = open('apps/playground/tap_64.toig', 'r') + f = open('apps/playground/tap_64.toig', 'rb') _background = ui.WHITE def func(foreground):