mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-27 01:48:17 +00:00
107 lines
3.6 KiB
JavaScript
107 lines
3.6 KiB
JavaScript
var img_confirm = new Image();
|
|
img_confirm.src = "screen-confirm.png";
|
|
|
|
var img_yesno = new Image();
|
|
img_yesno.src = "screen-yes-no.png";
|
|
|
|
var pixelPerfect = true;
|
|
|
|
function ppMeasureWidth(ctx, text) {
|
|
if (!pixelPerfect) {
|
|
return ctx.measureText(text).width;
|
|
} else {
|
|
var w = 0;
|
|
for (var i = 0; i < text.length; i++) {
|
|
var c = text.charCodeAt(i);
|
|
if (c >= 32 && c < 127) {
|
|
w += ctx.fontAdvances[c - 32];
|
|
} else {
|
|
w += 12; // sane default for unsupported Unicode chars
|
|
}
|
|
}
|
|
return w;
|
|
}
|
|
}
|
|
|
|
function ppFillText(ctx, text, x, y) {
|
|
if (!pixelPerfect) {
|
|
ctx.fillText(text, x, y);
|
|
} else {
|
|
for (var i = 0; i < text.length; i++) {
|
|
var c = text[i];
|
|
ctx.fillText(c, x, y);
|
|
x += ppMeasureWidth(ctx, c);
|
|
}
|
|
}
|
|
}
|
|
|
|
function setFont(ctx, bold, mono) {
|
|
ctx.fillStyle = 'white';
|
|
var font = bold ? 'bold ' : '';
|
|
font += '20px "Roboto';
|
|
font += mono ? ' Mono"' : '"';
|
|
ctx.font = font;
|
|
if (mono) {
|
|
// advance is always 12px for Roboto Mono
|
|
ctx.fontAdvances = Array(126 - 32 + 1).fill(12);
|
|
} else {
|
|
if (bold) {
|
|
// advances taken from font_roboto_bold_20.c (column 3)
|
|
ctx.fontAdvances = [5, 5, 7, 13, 12, 15, 14, 4, 7, 8, 9, 12, 6, 8, 5, 8, 12, 11, 12, 12, 11, 12, 12, 12, 12, 12, 5, 5, 11, 11, 10, 11, 18, 13, 13, 13, 13, 11, 11, 14, 14, 5, 12, 12, 11, 17, 14, 14, 13, 14, 13, 13, 14, 13, 13, 18, 13, 13, 13, 6, 8, 6, 9, 11, 7, 11, 11, 11, 12, 11, 9, 12, 11, 5, 6, 11, 5, 17, 11, 12, 11, 12, 8, 11, 8, 11, 10, 15, 10, 11, 10, 7, 6, 7, 13];
|
|
} else {
|
|
// advances taken from font_roboto_regular_20.c (column 3)
|
|
ctx.fontAdvances = [5, 5, 6, 13, 11, 15, 13, 4, 7, 7, 9, 12, 4, 7, 4, 8, 11, 11, 11, 11, 12, 12, 11, 12, 11, 11, 4, 4, 10, 10, 10, 10, 18, 13, 13, 13, 13, 12, 12, 13, 15, 6, 12, 13, 11, 18, 15, 13, 13, 13, 13, 12, 13, 12, 13, 18, 13, 12, 12, 5, 8, 6, 8, 11, 6, 10, 11, 11, 11, 11, 8, 11, 10, 4, 5, 10, 5, 17, 10, 12, 11, 12, 7, 10, 8, 10, 10, 15, 10, 9, 10, 7, 6, 8, 13];
|
|
}
|
|
}
|
|
}
|
|
|
|
function text(ctx, x, y, text, bold, mono) {
|
|
setFont(ctx, bold, mono);
|
|
ppFillText(ctx, text, x, y);
|
|
}
|
|
|
|
function textCenter(ctx, x, y, text, bold, mono) {
|
|
setFont(ctx, bold, mono);
|
|
var w = ppMeasureWidth(ctx, text);
|
|
ppFillText(ctx, text, x - w / 2, y);
|
|
}
|
|
|
|
function render() {
|
|
var title_str = document.getElementById("title").value;
|
|
var line_str = [];
|
|
var bold = [];
|
|
var mono = [];
|
|
for (var i = 1; i <= 5; i++) {
|
|
line_str[i] = document.getElementById("line" + i).value;
|
|
bold[i] = document.getElementById("bold_line" + i).checked;
|
|
mono[i] = document.getElementById("mono_line" + i).checked;
|
|
}
|
|
var confirm_str = document.getElementById("confirm").value;
|
|
|
|
var canvas = document.getElementById('canvas');
|
|
var ctx = canvas.getContext('2d');
|
|
|
|
if (confirm_str) {
|
|
ctx.drawImage(img_confirm, 0, 0);
|
|
} else {
|
|
ctx.drawImage(img_yesno, 0, 0);
|
|
}
|
|
|
|
text(ctx, 44, 35, title_str, true);
|
|
for (var i = 1; i <= 5; i++) {
|
|
text(ctx, 14, 48 + 26 * i, line_str[i], bold[i], mono[i]);
|
|
}
|
|
textCenter(ctx, 120, 215, confirm_str, true);
|
|
}
|
|
|
|
window.onload = function() {
|
|
document.getElementById("title").onkeyup = render;
|
|
for (var i = 1; i <= 5; i++) {
|
|
document.getElementById("line" + i).onkeyup = render;
|
|
document.getElementById("bold_line" + i).onclick = render;
|
|
document.getElementById("mono_line" + i).onclick = render;
|
|
}
|
|
document.getElementById("confirm").onkeyup = render;
|
|
render();
|
|
}
|