[enh] There should be a preview for images uploaded

This commit is contained in:
alban 2020-11-01 23:09:28 +01:00
parent 30e9a5a5cd
commit c1b9f42c4a
4 changed files with 163 additions and 9 deletions

View File

@ -13,6 +13,8 @@ services:
- "6379:6379"
volumes:
- laserrdb:/var/lib/redis
command: ["redis-server", "--appendonly", "yes"]
app:
env_file: .env

View File

@ -20,15 +20,18 @@
<script src="js/canvas.js"></script>
</head>
<body>
<script>
window.ORIGINAL_JSON=window.JSON;
</script>
<div class="container-fluid container-md">
<div class="row">
<div class="col-sm">
<h1 class="text-primary">Send shots to the laser!</h1>
<div class="select">
<label for="videoSource">Video source: </label>
<select id="videoSource">
</select>
</div>
<h1 class="text-primary">Send shots to the laser!</h1>
</div>
</div>
<div class="row">
@ -64,7 +67,15 @@ window.ORIGINAL_JSON=window.JSON;
</div>
</div>
</div>
<div class="row" id="result">
<div class="col-sm">
<canvas id="simuCanvas" width="640" height="480"></canvas>
</div>
<div class="col-sm" >
<h3>Your images</h3>
<div id="imageList"></div>
</div>
</div>
</div>

View File

@ -2,7 +2,7 @@
$(document).ready(function(){
var binary_level = 100
var url = document.URL
var url = document.location.origin
var cropper = null
var snap = null
var width;
@ -25,11 +25,9 @@ $(document).ready(function(){
context.drawImage(video, 0, 0, width, height);
snap = context.createImageData(width, height);
snap.data.set( context.getImageData(0, 0, width, height).data )
console.log(snap)
console.log(context.getImageData(0, 0, width, height))
binary(context)
$("#result").show()
$('html, body').animate({scrollTop: $("#result").offset().top}, 2000);
//$('html, body').animate({scrollTop: $("#result").offset().top}, 2000);
cropper = new Cropper(canvas,{
viewMode: 3,
@ -47,7 +45,54 @@ $(document).ready(function(){
});
}
// https://raw.githubusercontent.com/samdutton/simpl/gh-pages/getusermedia/sources/js/main.js
var videoElement = document.querySelector('video');
var videoSelect = document.querySelector('select#videoSource');
videoSelect.onchange = getStream;
getStream().then(getDevices).then(gotDevices);
function getDevices() {
// AFAICT in Safari this only gets default devices until gUM is called :/
return navigator.mediaDevices.enumerateDevices();
}
function gotDevices(deviceInfos) {
window.deviceInfos = deviceInfos; // make available to console
for (const deviceInfo of deviceInfos) {
const option = document.createElement('option');
option.value = deviceInfo.deviceId;
option.text = deviceInfo.label || `Camera ${videoSelect.length + 1}`;
videoSelect.appendChild(option);
}
}
function getStream() {
if (window.stream) {
window.stream.getTracks().forEach(track => {
track.stop();
});
}
const videoSource = videoSelect.value;
const constraints = {
video: {deviceId: videoSource ? {exact: videoSource} : undefined}
};
return navigator.mediaDevices.getUserMedia(constraints).
then(gotStream).catch(handleError);
}
function gotStream(stream) {
window.stream = stream; // make stream available to console
videoSelect.selectedIndex = [...videoSelect.options].
findIndex(option => option.text === stream.getVideoTracks()[0].label);
videoElement.srcObject = stream;
}
function handleError(error) {
console.error('Error: ', error);
}
// https://raw.githubusercontent.com/samdutton/simpl/gh-pages/getusermedia/sources/js/main.js
function setCameraResolution( track ){
width = track.getSettings().width
height = track.getSettings().height
@ -158,6 +203,7 @@ $(document).ready(function(){
imageList = localStorage.getItem("imageList") ? JSON.parse(localStorage.getItem("imageList")) : []
imageList.push(d.hash_name)
localStorage.setItem("imageList",JSON.stringify(imageList))
refreshImageList()
})
.fail(function(d,m,jq){
$("#messages").html(`<div class="alert alert-danger" role="alert">Ooops... Something went wrong: ${jq}</div>`)
@ -165,4 +211,83 @@ $(document).ready(function(){
})
})
var simuCanvas = document.getElementById("simuCanvas");
var ctx = simuCanvas.getContext("2d");
var lastpoint = { x: 0, y: 0, color: 0};
ctx.clearRect(0,0,400,400);
var zoom = 0.5;
//ctx.save
Point = function( l ){
return {
"x" : l[0],
"y" : l[1],
"color" : l[2]
}
}
// Draws every segment received, except black colored target ones
var drawSimu = function() {
pointsList = document.pointsList
if (pointsList.length > 0)
{
ctx.clearRect(0,0,400,400);
lastpoint = new Point(pointsList[0])
for (var i = 0; i < pointsList.length; i+=1)
{
point = new Point(pointsList[i])
// if the target is black, skip drawing
if( point.color != 0){
ctx.beginPath()
ctx.shadowBlur = 5;
ctx.shadowColor = 'rgba(255, 255, 255, 1)';
ctx.lineWidth = 2;
ctx.strokeStyle = "#"+(point.color + Math.pow(16, 6)).toString(16).slice(-6);
ctx.moveTo(lastpoint.x * zoom, lastpoint.y * zoom);
ctx.lineTo(point.x * zoom, point.y * zoom);
ctx.stroke();
ctx.closePath()
}
lastpoint = point
}
}
}
function refreshImageList(){
var imageList = localStorage.getItem("imageList") ? JSON.parse(localStorage.getItem("imageList")) : []
html = ''
for( id in imageList){
hash_name = imageList[id]
html += `<li><a href="#${hash_name}" class="hash_name" rel="${hash_name}">${hash_name}</a></li>`
}
$("#imageList").html(`<ul>${html}</ul>`)
}
refreshImageList()
$("#imageList").on("click",function(e){
var el = e.target
var hash_name = $(el).attr("rel")
var u = `${url}/hash_name/${hash_name}`
$.ajax({
url: `${url}/hash_name/${hash_name}`,
dataType: "json",
}).done(function(d,m,j){
if( d.errors ){
msg = d.errors.join(" / ")
$("#messages").html(`<div class="alert alert-danger" role="alert">Something went wrong: ${msg}</div>`)
return
}
$("#messages").html("")
document.pointsList = d.points_list
drawSimu()
})
.fail(function(d,m,jq){
$("#messages").html(`<div class="alert alert-danger" role="alert">Ooops... Something went wrong: ${jq}</div>`)
})
})
})

View File

@ -61,6 +61,22 @@ def image():
print("woah",e)
return( json.dumps( {"errors":[ str(e)]}))
@app.route('/hash_name/<hash_name>',methods = ['GET'])
def hash_name(hash_name):
try:
item = json.loads(r.hget("images",hash_name))
if not item:
raise Exception("This image is not available now. You might need to wait a bit more?")
return( json.dumps({
"message":"ok",
"points_list":item["points_list"]
}) )
except Exception as e:
print("woah",e)
return( json.dumps( {"errors":[ str(e)]}))
# Run Flask
if __name__ == '__main__':
app.run(host= '0.0.0.0',debug = True)