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added Text input and image upload to html page

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This commit is contained in:
enny 2019-12-08 20:59:43 +01:00
parent c94ba558ec
commit 7090589354
1 changed files with 135 additions and 15 deletions
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150
WebGUI.html
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@ -7,25 +7,15 @@
<style>
body {background-color: #ccc; margin: 0; padding: 0; text-align: center;}
input {background-color: #ccc; border-radius: 2px;}
.menu { background-color: rgb(4, 0, 59); color: #ccc; padding: 1.2em; width: 100%; box-sizing: border-box;}
.panelRow{
display: inline-block;
font-size: 0;
margin-top: 0px;}
.pixel{
float: left;
width: 20px;
height: 20px;
margin-right:0px;
background-color: #000;
}
.menu { background-color: rgb(4, 0, 59); color: #ccc; padding: 1.2em; width: 100%; box-sizing: border-box; margin-bottom: 1em;}
.btn { background-color: #005; border-radius: 2px; color:#ccc; box-shadow: 5px, 5px, 5px, #000; padding: 5px;}
</style>
</head>
<body>
<div class="menu">
IP: <input type="text" id="ip" value="10.23.42.24">
<div style="width: 2em; display: inline-block;" ></div>
Port: <input type="text" id="port" value="81">
Port: <input type="text" id="port" value="81" style="width: 2.5em;">
<div style="width: 2em; display: inline-block;" ></div>
Panel width: <input type="text" id="width" value="32" style="width: 2.5em;" onchange="creatGUI()">
height: <input type="text" id="height" value="40" style="width: 2.5em;" onchange="creatGUI()">
@ -34,8 +24,13 @@
</div>
<input type="button" value="clear" onclick="clearCanvas()"><br />
<canvas id="can" style="background-color:#000; margin: 1em;"></canvas>
<input class="btn" type="button" value="clear" onclick="clearCanvas()">
<input type="file" id="fileupload" value="upload file" style="display: none;" />
<label class="btn" for="fileupload">upload a file</label>
<br />
<canvas id="can" style="background-color:#000; margin: 1em;"></canvas> <br />
<textarea id="textInput"></textarea><br />
<input type="button" value="print" onclick="textInputChanged()" />
<script type="text/javascript">
var socket;
@ -239,6 +234,131 @@
ctx.stroke();
}
function displayBufferContent()
{
dragMode = true;
for(x = 0; x < xMax; x++)
{
for(y = 0; y < yMax; y++)
{
if(pixelBuffer[x + xMax*y] != 0)
{
drawDot(x*scaling+1, y*scaling +1);
}
else
{
drawDot(x*scaling+1, y*scaling +1, true);
}
}
}
dragMode = false;
changeFlag = true;
}
//====================================================================
//========= image upload functione... ==========
//====================================================================
document.getElementById("fileupload").addEventListener('change', imageChanged, false);
hiddenCanvas = document.createElement("canvas");
hiddenCtx = hiddenCanvas.getContext('2d');
function imageChanged(evt)
{
var file = evt.target.files[0];
if (!file.type.match('image.*'))
{
alert("wrong file format");
return;
}
var reader = new FileReader();
reader.onload = function (event)
{
var img = new Image();
img.src = event.target.result;
img.onload = function()
{
width = img.width;
height = img.height;
if (width > height)
{
if (width > xMax)
{
height *= xMax / width;
width = xMax;
}
}
else
{
if (height > yMax)
{
width *= yMax / height;
height = yMax;
}
}
hiddenCanvas.width = width;
hiddenCanvas.height = height;
hiddenCtx.drawImage(img, 0, 0, width, height);
showHiddenCanvas();
}
img.src = event.target.result;
};
reader.readAsDataURL(file);
}
function showHiddenCanvas()
{
for(var y = 0; y < yMax; y++)
{
for(var x = 0; x < xMax; x++)
{
var p = hiddenCtx.getImageData(x, y, 1, 1).data;
if((p[0] < 128 || p[1] < 128 || p[2] < 128) && p[3] > 128)
{
pixelBuffer[x+xMax*y] = 1;
}
else
{
pixelBuffer[x+xMax*y] = 0;
}
}
}
displayBufferContent();
}
function printText(texttodraw)
{
hiddenCanvas.width = xMax;
hiddenCanvas.height = yMax;
var lines = texttodraw.split('\n');
hiddenCtx.clearRect(0, 0, hiddenCanvas.width, hiddenCanvas.height);
hiddenCtx.font = '10px Verdana';
hiddenCtx.textBaseline="top";
var lineheight = 10;
for (var j = 0; j<lines.length; j++)
{
hiddenCtx.fillText(lines[j], 0, 0 + (j*lineheight));
}
showHiddenCanvas();
}
function textInputChanged()
{
var text = document.getElementById("textInput").value;
printText(text);
}
</script>
</body>
</html>