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form.html
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form.html
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<html>
<head>
<title>PicoW NeoPixel</title>
<style>
.grid {
display: grid;
column-gap: 20px;
row-gap: 10px;
grid-template-columns: 100px auto auto;
}
legend {
font-style: italic;
font-weight: bold;
}
fieldset {
margin-bottom:7px;
}
canvas {
border: 1px solid #000000;
height: 20;
width: 256;
grid-column: 2;
}
input[type='range'] {
width: 256px;
grid-column: 2;
}
label {
grid-column: 1;
}
.c3 {
grid-column: 3;
}
.r1 {
grid-row: 1;
}
.r2 {
grid-row: 2;
}
.r3 {
grid-row: 3;
}
.r4 {
grid-row: 4;
}
</style>
<script>
var baseURI = document.baseURI;
//baseURI="http://192.168.0.62:8080";
// Values for just setting the lamps.
var hue = 0;
var saturation = 1;
var value = 1;
var white = 0;
// values for ripple.
var hue1 = 0;
var hue2 = 0.5;
var rValue = 1.0;
var inc = 1;
var count = 2;
var rWhite = 0;
function hsvToRgb( hue, saturation, value){
let r = g = b = 0;
if(hue > 1.0) hue = 1.0;
if(saturation > 1.0) saturation = 1.0;
if(value > 1.0) value = 1.0;
const h = Math.floor(hue * 6);
const f = hue * 6 - h;
const p = value * (1 - saturation);
const q = value * (1 - f * saturation);
const t = value * (1 - (1 - f) * saturation);
if (h == 0) {
r = value;
g = t;
b = p;
} else if (h == 1) {
r = q;
g = value;
b = p;
} else if (h == 2) {
r = p;
g = value;
b = t;
} else if (h == 3) {
r = p;
g = q;
b = value;
} else if (h == 4) {
r = t;
g = p;
b = value;
} else if (h <= 6) {
r = value;
g = p;
b = q;
}
function hex(v){
let h = Math.floor(v).toString(16);
return h.length == 1 ? '0'+ h : h;
}
const rgb = '#' +
hex(r * 255) +
hex(g * 255) +
hex(b * 255);
return rgb;
}
// Function for filling in the hue picker
function h2RGB(hue, data, index) {
let r = g = b = 0;
if (hue > 1.0) hue = 1.0;
let h = Math.floor(hue * 6);
let f = hue * 6 - h;
let p = 0;
let q = (1 - f);
let t = f;
if (h == 0) {
r = 1;
g = t;
b = p;
} else if (h == 1) {
r = q;
g = 1;
b = p;
} else if (h == 2) {
r = p;
g = 1;
b = t;
} else if (h == 3) {
r = p;
g = q;
b = 1;
} else if (h == 4) {
r = t;
g = p;
b = 1;
} else if (h <= 6) {
r = 1;
g = p;
b = q;
}
data[index + 0] = Math.floor(r * 255);
data[index + 1] = Math.floor(g * 255);
data[index + 2] = Math.floor(b * 255);
data[index + 3] = 255;
}
function drawRGB(name, onclick) {
var c = document.getElementById(name);
var ctx = c.getContext("2d");
const imageData = ctx.getImageData(0, 0, c.width, c.height);
const data = imageData.data;
let index = 0;
for (let iy = 0; iy < imageData.height; iy++) {
for (let ix = 0; ix < imageData.width; ix++) {
h2RGB(ix / imageData.width, data, index);
index += 4; // bytes per pixel
}
}
ctx.putImageData(imageData, 0, 0);
function pick(event) {
const bounding = c.getBoundingClientRect();
const x = event.clientX - bounding.left;
const y = event.clientY - bounding.top;
const hue = x / bounding.width;
if(onclick){
onclick(hue);
}
return hue;
}
c.addEventListener("click", (event) => pick(event, undefined));
}
// Send settings for colour & brightness
function sendCB(){
const url = new URL("/set", baseURI);
const rgb = hsvToRgb( hue, saturation, value);
url.search=`?rgb=${rgb}&white=${Math.floor(white*255)}`;
let pr = fetch(url, {
method: 'GET',
});
}
function setBright(b){
value = b;
sendCB();
};
function setSat(s){
saturation = s;
sendCB();
};
function setWhite(w){
white = w;
sendCB();
}
function sendRipple(path){
let ctrl = document.getElementById("value");
const value = ctrl.value;
ctrl = document.getElementById("inc");
const inc = ctrl.value;
ctrl = document.getElementById("count");
const count = ctrl.value;
ctrl = document.getElementById("w2");
const white = ctrl.value;
const url = new URL(path, baseURI);
url.search=`?hue=${hue1}&hue2=${hue2}&value=${value}&white=${Math.floor(white*255)}&count=${count}&inc=${inc}`;
let pr = fetch(url, {
method: 'GET',
});
}
function sendRate(){
let ctrl = document.getElementById("rate");
const rate = ctrl.value;
const url = new URL("/cycle",baseURI);
url.search=`?rate=${rate}`;
let pr = fetch(url, {
method: 'GET',
});
}
function sendSparkle(){
const url = new URL("/sparkle",baseURI);
let pr = fetch(url, {
method: 'GET',
});
}
function sendColours(){
let ctrl = document.getElementById("value3");
const value = ctrl.value;
ctrl = document.getElementById("inc3");
const inc = ctrl.value / 1000;
ctrl = document.getElementById("w3");
const white = ctrl.value;
const url = new URL("/colour",baseURI);
url.search=`?value=${value}&white=${Math.floor(white*255)}&inc=${inc}`;
let pr = fetch(url, {
method: 'GET',
});
}
function configure(){
drawRGB("rgbPicker", function(h){
hue = h;
sendCB();
});
drawRGB('hue1', function(h){
hue1 = h;
});
drawRGB('hue2', function(h){
hue2 = h;
});
}
</script>
</head>
<body onload="configure()">
<fieldset>
<legend>Set colour and brightness</legend>
<div class="grid">
<label for="rgbPicker">Colour</label>
<canvas id="rgbPicker"> </canvas>
<label for="brightness">Brightness</label>
<input id="brightness" type="range" min="0" max="1.0" step="0.001" value="0.5"
onchange="setBright(this.value)" />
<label for="sat">Saturation</label>
<input id="sat" type="range" min="0" max="1.0" step="0.001" value="0.5"
onchange="setSat(this.value)" />
<label for="white">White</label>
<input id="white" type="range" min="0" max="1.0" step="0.001" value="0.5"
onchange="setWhite(this.value)" />
</div>
</fieldset>
<fieldset>
<legend>Animated Waves</legend>
<div class="grid">
<label for="hue1">Colour</label>
<canvas id="hue1"> </canvas>
<label for="hue2">Back Colour</label>
<canvas id="hue2"> </canvas>
<label for="value">Brightness</label>
<input id="value" type="range" min="0" max="1.0" step="0.001" value="0.5" />
<label for="inc">Increment</label>
<input type="number" id="inc" value="1" min="0" max="255" name="brt"><br>
<label for="count">count</label>
<input type="number" id="count" value="2" min="0" max="255" name="brt"><br>
<label for="w2">White</label>
<input id="w2" type="range" min="0" max="1.0" step="0.001" value="0"/>
<button class="r1 c3" onclick="sendRipple('/ripples')">Ripples</button>
<button class="r2 c3" onclick="sendRipple('/spokes')">Spokes</button>
<button class="r3 c3" onclick="sendRipple('/horizontal')">Horizontal</button>
<button class="r4 c3" onclick="sendRipple('/vertical')">Vertical</button>
</div>
</fieldset>
<fieldset>
<legend>Other</legend>
<div class="grid">
<button class="r1" onclick="sendSparkle()">Sparkle</button>
<label for="value3">Brightness</label>
<input id="value3" type="range" min="0" max="1.0" step="0.001" value="0.5" />
<label for="inc3">Increment</label>
<input type="number" id="inc3" value="1" min="0" max="100" name="inc3"><br>
<label for="w3">White</label>
<input id="w3" type="range" min="0" max="1.0" step="0.001" value="0"/>
<button class="r2 c3" onclick="sendColours()">Colours</button>
</div>
</fieldset>
<fieldset>
<legend>Update rate</legend>
<div class="grid">
<label for="rate">Increment</label>
<input type="number" id="rate" value="1" min="0" max="255" name="brt"><br>
<button class="r1 c3" onclick="sendRate()">Set Rate</button>
</div>
</fieldset>
</body>
</html>