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Add read data feature #4

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Add read data feature #4

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b6c97b9
add read data feature
kkguo Jan 6, 2020
c32d849
Update README.md
kkguo Jan 13, 2020
fc68651
disable this to resolve error from github
kkguo Jan 13, 2020
158f749
Merge branch 'stefangordon:master' into master
kkguo Aug 25, 2023
c8546c7
Update app.js
stefangordon Feb 2, 2024
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2 changes: 1 addition & 1 deletion CNAME
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Original file line number Diff line number Diff line change
@@ -1 +1 @@
dotmatrixtool.com
#dotmatrixtool.com
6 changes: 6 additions & 0 deletions README.md
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@@ -1,5 +1,11 @@
# Dot Matrix Tool

Edited version, with feature of read back data
https://hxlvelectronicclub.github.io/dotmatrixtool/


Below is from the oringinal repo.

A web application for generating character or image byte arrays for dot matrix style OLED or LCD displays.

Use it live at http://dotmatrixtool.com
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42 changes: 38 additions & 4 deletions app.js
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Expand Up @@ -16,7 +16,7 @@ function updateTable() {
var height = matrix.length;

$('#_grid').html('');
$('#_grid').append(populateTable(null, height, width, ""));
$('#_grid').append(populateTable(null, height, width, matrix));

// events
$table.on("mousedown", "td", toggle);
Expand All @@ -25,9 +25,10 @@ function updateTable() {
}

function initOptions() {
$('#clearButton').click(function() { matrix = createArray(matrix.length,matrix[0].length); updateTable(); $('#_output').hide(); });
$('#clearButton').click(function() { matrix = createArray(matrix.length,matrix[0].length); updateTable(); $('#_output').hide();});
$('#generateButton').click(updateCode);

$('#readButton').click(readData);

$('#widthDropDiv li a').click(function () {
var width = parseInt($(this).html());
var height = matrix.length;
Expand Down Expand Up @@ -82,6 +83,36 @@ function updateCode() {
prettyPrint();
}

function readData() {
var bytestr = prompt("Input your data here, in hex format: 0x1, 0x2");
if (!bytestr) return;
var width = matrix.length;
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var height = matrix[0].length;
var bytes = bytestr.split(',').map(function (x) { return parseInt(x)});

var byteinarow=Math.ceil(width/8);
var byteinacol=Math.ceil(height/8);
var byteindex ;
var bitindex;
for (var y=0;y<height;y++) {
for(var x=0;x<width;x++) {
if (rowMajor) {
byteindex = y*byteinarow + Math.floor(x/8);
bitindex = x%8;
} else {
byteindex = x*byteinacol + Math.floor(y/8);
bitindex = y%8;
}
if (msbendian) bitindex = 7-bitindex;
matrix[y][x] = (bytes[byteindex] >> bitindex) & 0x1;
}
}
updateTable();
updateSummary();
updateCode();
}


function generateByteArray() {
var width = matrix[0].length;
var height = matrix.length;
Expand Down Expand Up @@ -157,8 +188,11 @@ function populateTable(table, rows, cells, content) {
row.appendChild(document.createElement('td'));
$(row.cells[j]).data('i', i);
$(row.cells[j]).data('j', j);
if (content[i][j]) {
$(row.cells[j]).addClass('on');
}
}
table.appendChild(row);
table.appendChild(row);
}
$table = $(table);
return table;
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20 changes: 4 additions & 16 deletions index.html
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Expand Up @@ -15,21 +15,6 @@

<!-- Custom styles for this template -->
<link href="cover.css" rel="stylesheet">

<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

ga('create', 'UA-276334-9', 'auto');
ga('send', 'pageview');
</script>
</head>

<body>
Expand Down Expand Up @@ -59,7 +44,10 @@
<div class="col-xs-12" style="height:20px;"></div>
<!-- Options -->
<div class="btn-group">
<button type="button" class="btn btn-default" id="generateButton">Generate</button>
<button type="button" class="btn btn-default" id="generateButton">Generate Data</button>
</div>
<div class="btn-group">
<button type="button" class="btn btn-default" id="readButton">Read Data</button>
</div>
<div class="btn-group">
<button type="button" class="btn btn-default" id="clearButton">Clear</button>
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