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index.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="pinterest" content="nopin" />
<title>Electric Cat</title>
<link rel="icon" type="image/gif" href="images/icon_pomme.gif" />
<link rel="stylesheet" href="styles/fonts.css">
<link rel="stylesheet" href="styles/main.css">
<link rel="stylesheet" href="styles/menu.css">
<link rel="stylesheet" href="styles/bars.css">
<script src="scripts/jquery-3.1.0.min.js"></script>
<script src="imagick.js"></script>
<script src="im.js"></script>
<script src="scripts/grafi-despeckle.js"></script>
<script src="scripts/grafi.js"></script>
<script src="scripts/filters.js"></script>
<script src="scripts/glfx.js"></script>
<script src="scripts/imagefilters.js"></script>
<script src="scripts/phg1024filter.js"></script>
<script src="scripts/menu.js"></script>
<script src="scripts/barLevel.js"></script>
<script src="scripts/barSimple.js"></script>
<script src="scripts/barInput.js"></script>
<script src="scripts/dialog.js"></script>
<script src="scripts/messageBox.js"></script>
<script src="pako/dist/pako_deflate.min.js"></script>
<script src="scripts/png.js"></script>
<script src="FileSaver/FileSaver.min.js"></script>
<script src="scripts/palettes.js"></script>
<script src="scripts/rgbquant.js"></script>
<script src="scripts/core.js"></script>
<script src="scripts/selection.js"></script>
<script src="scripts/nub.js"></script>
<script src="d3/d3.min.js"></script>
<script src="scripts/curves.js"></script>
<script>
let working = async (cb) => {
if (cb.constructor.name === 'AsyncFunction') {
$('body').addClass('working');
setTimeout(async () => {
await cb();
$('body').removeClass('working');
}, 100);
} else console.error('Working callback must be an async function.');
};
Error.stackTraceLimit=Infinity;
class CContext {
constructor(depth, name, type, colors) {
if (typeof depth !== 'undefined') this.Depth = depth;
else this.Depth = 'RGB';
if (typeof name !== 'undefined') this.Name = name;
else this.Name = 'unknown';
if (typeof type !== 'undefined') this.Type = type;
else this.Type = 'image/png';
if (typeof colors !== 'undefined') this.Colors = colors;
else this.Colors = {grayscale: false, count: 0, palette: []};
}
changeDepth(depth) {
this.Depth = depth;
var self = this;
$('.layer').show({duration:0, complete: function () {
self.Colors = analyseColors();
updateMenuMode();
$('.layer').hide();
}});
}
clone() {
return new CContext(this.Depth, this.Name, this.Type, this.Colors);
}
}
class CState {
constructor() {
this.MaxStates = 20;
this.States = new Array();
}
save(caption) {
var src = $('#src').attr('src');
if (typeof src !== 'undefined' && src.length > 0) {
if (typeof caption === 'undefined') caption = '';
this.States.push({image: src, context: Context.clone(), caption: caption});
if (this.States.length > this.MaxStates) this.States.shift();
if (this.States.length == 1) $('#miundo').removeClass('disabled');
$('#miundo').html('Undo '+caption);
}
}
restore() {
if (this.States.length > 0) {
var state = this.States.pop()
$('#src').attr('src', state.image);
Context = state.context;
enableMenusOnOpen();
if (this.States.length == 0) {
$('#miundo').addClass('disabled');
$('#miundo').html('Undo');
} else {
$('#miundo').html('Undo '+this.States[this.States.length-1].caption);
}
}
}
reset() {
this.States = new Array();
$('#miundo').addClass('disabled');
$('#miundo').html('Undo');
}
}
var Context = new CContext();
var State = new CState();
const ZOOMS = [
0.001, 0.002, 0.003, 0.004, 0.005, 0.0075,
0.01, 0.015, 0.02, 0.03, 0.04, 0.05, 0.0625, 1.0 / 12.0 /* 0.08333... */,
0.125, 1.0 / 6.0 /* 0.1666... */, 0.25, 1.0 / 3.0 /* 0.333... */, 0.5, 2.0 / 3.0 /* 0.666... */,
1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 12.0, 16.0, 32.0, 64.0, 128.0
];
let saveCurrentZoom = () => {
let $zoom = $('#zoom');
$zoom.data('saved', $zoom.val());
};
let restoreSavedZoom = () => {
let $zoom = $('#zoom');
$zoom.val($zoom.data('saved'));
setZoom($('#src'));
setZoom($('#dst'));
};
let zoomFitsWorkArea = () => {
let $viewport = $('#workingarea');
let vw = $viewport.width();
let vh = $viewport.height();
let $container = $('#src');
let cw = $container.width();
let ch = $container.height();
if (cw > vw || ch > vh) return false;
else if (cw < 16 || ch < 16) return false;
return true;
};
let zoomFitToWorkArea = () => {
let $viewport = $('#workingarea');
let vw = $viewport.width();
let vh = $viewport.height();
let $container = $('#src');
let cw = $container.get(0).width;
let ch = $container.get(0).height;
let Z = 0;
let exceeded = false;
for (zoom of ZOOMS) {
w = cw * zoom;
h = ch * zoom;
if (w > vw || h > vh) {
exceeded = true;
break;
}
Z++;
}
let r = 1.0;
if (Z === 0 || (Z === ZOOMS.length - 1 && !exceeded)) r = ZOOMS[Z];
else r = ZOOMS[Z-1];
setZoom($('#src'), r);
setZoom($('#dst'), r);
$('#zoom').val(r);
};
let setZoom = ($selector, r) => {
if (r === undefined) r = $('#zoom').val();
if (r < 1.0) $selector.css('image-rendering', 'auto');
else $selector.css('image-rendering', 'pixelated');
$selector.css('transform', 'scale('+r+')');
};
let resetZoom = () => {
$zoom = $('#zoom');
$zoom.val($('option.nozoom', $zoom).val());
setZoom($('#src'));
setZoom($('#dst'));
};
let coordToImage = (coord) => {
let r = parseFloat($('#zoom').val());
return Math.round(coord / r);
};
let imageToCoord = (coord) => {
let r = parseFloat($('#zoom').val());
return Math.round(coord * r);
};
let removeTrailingZeros = (str) => {
return str.replace(/0+$/, '').replace(/\.$/, '');
};
let disableRidiculousZoomLevels = () => {
let w = $('#src').get(0).width;
let h = $('#src').get(0).height;
const min = 16;
options = $('#zoom option');
for (let i = 0; i < ZOOMS.length; i++) {
if (ZOOMS[i] < 1) {
let zw = Math.round(w * ZOOMS[i]);
let zh = Math.round(h * ZOOMS[i]);
if (zw < min || zh < min) $(options[i]).prop('disabled', true);
else $(options[i]).prop('disabled', false);
} else break;
}
}
$(() => {
for (let zoom of ZOOMS) {
let $option = $('<option />');
$option.val(zoom);
$option.text(removeTrailingZeros((zoom*100.0).toFixed(3))+'%');
if (zoom === 1.0) {
$option.prop('selected', true);
$option.addClass('nozoom');
}
$('#zoom').append($option);
}
$('#zoom').on('change', () => {
let r = $('#zoom').val();
setZoom($('#src'));
setZoom($('#dst'));
});
$('#zoom100Button').on('click', resetZoom);
$('#fitButton').on('click', zoomFitToWorkArea);
});
function b64toBlob(b64Data, contentType, sliceSize) {
contentType = contentType || '';
sliceSize = sliceSize || 512;
var byteCharacters = atob(b64Data);
var byteArrays = [];
for (var offset = 0; offset < byteCharacters.length; offset += sliceSize) {
var slice = byteCharacters.slice(offset, offset + sliceSize);
var byteNumbers = new Array(slice.length);
for (var i = 0; i < slice.length; i++) {
byteNumbers[i] = slice.charCodeAt(i);
}
var byteArray = new Uint8Array(byteNumbers);
byteArrays.push(byteArray);
}
var blob = new Blob(byteArrays, {type: contentType});
return blob;
}
function urlToB64(src) {
var b64 = src.replace(/^data:image\/[a-z]+;base64,/, "");
var res = src.match(/^data:(image\/[a-z]+);base64,/);
var mime = res[1];
return {Mime: mime, Base64: b64};
}
function analyseColors() {
var info = {};
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) {
console.log('image not ready to be analyzed...');
return null;
}
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
info.grayscale = true;
info.bitmap = false;
info.alpha = false;
var uniqcols = {};
for (var cp = 0; cp < imageData.data.length; cp+=4) {
var i = (imageData.data[cp] << 16) + (imageData.data[cp+1] << 8) + imageData.data[cp+2];
uniqcols[i] = 1 + (uniqcols[i] || 0);
if (info.grayscale && !(imageData.data[cp] == imageData.data[cp+1] && imageData.data[cp] == imageData.data[cp+2])) info.grayscale = false;
if (!info.alpha && imageData.data[cp+3] < 255) info.alpha = true;
}
info.count = Object.keys(uniqcols).length;
if (info.count == 2 && info.grayscale == true) {
if ((uniqcols[0] == 0 || uniqcols[0] == 16777215) && (uniqcols[1] == 0 || uniqcols[1] == 16777215) && uniqcols[0] != uniqcols[1]) {
info.bitmap = true;
info.grayscale = false;
}
}
//console.log(info);
return info;
}
//https://github.com/imaya/zlib.js/blob/master/README.en.md
// https://github.com/IjzerenHein/pnglib-es6/blob/master/src/pnglib-es6.js
function toBitmapPNG() {
var bitmap = [];
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
var row = [];
var wi = 0;
for (var cp = 0; cp < imageData.data.length; cp+=4) {
if (imageData.data[cp] == 0) row.push(0);
else row.push(1);
wi++;
if (wi >= canvas.width) {
wi=0;
bitmap.push(row);
row = [];
}
}
var png = new CPNGImage();
png.header(canvas.width, canvas.height, 1, 0);
//png.palette([[0,0,0], [255,255,255]]);
png.data(bitmap)
return png.blob();
}
function toGrayscalePNG() {
var grayscale = [];
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
var depth = 8;
/*var rdepth = 1.0;
if (Context.Colors.count <= 2) {
depth = 1;
rdepth = 0.003921568627451;
} else if (Context.Colors.count <= 4) {
depth = 2;
rdepth = 0.011764705882353;
} else if (Context.Colors.count <= 16) {
depth = 4;
rdepth = 0.058823529411765;
}*/
var row = [];
var wi = 0;
for (var cp = 0; cp < imageData.data.length; cp+=4) {
row.push(imageData.data[cp]);
wi++;
if (wi >= canvas.width) {
wi=0;
grayscale.push(row);
row = [];
}
}
var png = new CPNGImage();
png.header(canvas.width, canvas.height, depth, 0);
png.data(grayscale)
return png.blob();
}
function toIndexedPNG() {
var indexed = [];
var palette = [];
var finalpal = [];
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
var row = [];
var wi = 0;
for (var cp = 0; cp < imageData.data.length; cp+=4) {
var i = (imageData.data[cp] << 16) + (imageData.data[cp+1] << 8) + imageData.data[cp+2];
if (palette.indexOf(i) == -1) {
palette.push(i);
finalpal.push([imageData.data[cp], imageData.data[cp+1], imageData.data[cp+2]]);
}
row.push(palette.indexOf(i));
wi++;
if (wi >= canvas.width) {
wi=0;
indexed.push(row);
row = [];
}
}
var depth = 8;
if (finalpal.length <= 2) depth = 1;
else if (finalpal.length <= 4) depth = 2;
else if (finalpal.length <= 16) depth = 4;
var png = new CPNGImage();
png.header(canvas.width, canvas.height, depth, 3);
png.palette(finalpal);
png.data(indexed)
return png.blob();
}
function handleFileSelect(evt) {
evt.stopPropagation();
evt.preventDefault();
var files = evt.dataTransfer.files;
for (var i = 0, f; f = files[i]; i++) {
if (f.type.match(/^image\/(jpg|jpeg|png|webp|gif)/)) {
var reader = new FileReader();
reader.onload = (function(theFile) {
return function(e) {
makeOpen(e.target.result, theFile.name, theFile.type);
};
})(f);
reader.readAsDataURL(f);
} else {
//alert('Only PNG, JPEG, WEBP and GIF are handled.');
$('#mb_unsupported').messageBox('open');
}
}
}
function handleDragOver(evt) {
evt.stopPropagation();
evt.preventDefault();
evt.dataTransfer.dropEffect = 'copy';
}
function makeGrayscale(img) {
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(grayScale(imageData), 0, 0);
State.save("Grayscale");
$('#src').attr('src', canvas.toDataURL('image/png'));
Context.changeDepth('Grayscale');
}
function makeRGB() {
State.save("RGB");
Context.changeDepth('RGB');
}
function makeInvert() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(invert(imageData), 0, 0);
State.save("Invert");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeSobel() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(Filters.sobel(imageData), 0, 0);
State.save("Find Edge");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeSobelIM() {
IMSobel($('#src'), $('#dst'));
makeOk('Find Edge IM');
}
function makeLaplace() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(Filters.laplace(imageData), 0, 0);
State.save("Trace Contour");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeStretch() {
State.save("Auto Levels");
IMAutoLevel($('#src'), $('#src'));
}
function makeAutoGamma() {
State.save("Auto Gamma");
IMCmdAutoGamma($('#src'), $('#src'));
}
function makeEqualize() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(equalize(imageData), 0, 0);
State.save("Equalize");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeAutoContrast() {
State.save("Auto Contrast");
IMContrast($('#src'), $('#src'));
}
function makeNormalize() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(normalize(imageData), 0, 0);
State.save("Normalize");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeBlurMore() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(blurMore(imageData), 0, 0);
State.save("Blur More");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeBlur() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(blur(imageData), 0, 0);
State.save("Blur");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeEmbossMediumGray() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(embossMediumGray(imageData), 0, 0);
State.save("Emboss Medium Gray");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeEmboss() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(emboss(imageData), 0, 0);
State.save("Emboss");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeSharpen() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(grafi.sharpen(imageData, {level: 0.25}), 0, 0);
State.save("Sharpen");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeSharpenMore() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(sharpen(imageData), 0, 0);
State.save("Sharpen More");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeSolarize() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(grafi.solarize(imageData), 0, 0);
State.save("Solarize");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makePseudocolor() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(grafi.pseudocolor(imageData), 0, 0);
State.save("Pseudocolor");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
let makeDespeckle = async () => {
await working(async () => {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0,0,img.width, img.height);
ctx.putImageData(despeckle(imageData), 0, 0);
State.save("Despeckle");
$('#src').attr('src', canvas.toDataURL('image/png'));
$('body').removeClass('working');
});
};
function makeFlipHorizontal() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.translate(canvas.width/2,canvas.height/2);
ctx.scale(-1, 1);
ctx.drawImage(img, -img.width/2,-img.height/2);
State.save("Flip Horizontal");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeFlipVertical() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.translate(canvas.width/2,canvas.height/2);
ctx.scale(1, -1);
ctx.drawImage(img, -img.width/2,-img.height/2);
State.save("Flip Vertical");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeRotate180() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.translate(canvas.width/2,canvas.height/2);
ctx.rotate(180 * Math.PI / 180);
ctx.drawImage(img, -img.width/2,-img.height/2);
State.save("Rotate 180°");
$('#src').attr('src', canvas.toDataURL('image/png'));
}
function makeRotate90CW() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.height;
canvas.height = img.width;
var ctx = canvas.getContext("2d");
ctx.translate(canvas.width/2,canvas.height/2);
ctx.rotate(90 * Math.PI / 180);
ctx.drawImage(img, -img.width/2,-img.height/2);
State.save("Rotate 90° CW");
$('#src').attr('src', canvas.toDataURL('image/png'));
updateStatusBarDimensions();
}
function makeRotate90CCW() {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var canvas = document.createElement("canvas");
canvas.width = img.height;
canvas.height = img.width;
var ctx = canvas.getContext("2d");
ctx.translate(canvas.width/2,canvas.height/2);
ctx.rotate(-90 * Math.PI / 180);
ctx.drawImage(img, -img.width/2,-img.height/2);
State.save("Rotate 90° CCW");
$('#src').attr('src', canvas.toDataURL('image/png'));
updateStatusBarDimensions();
}
function makeRotate(deg) {
var img = $('#src').get(0);
if (img.width == 0 || img.height == 0) return null;
var destdims = findBoundarySizeOfRotatedRect(img.width, img.height, deg);
var canvas = document.createElement("canvas");
canvas.width = destdims.width;
canvas.height = destdims.height;
var ctx = canvas.getContext("2d");
ctx.translate(canvas.width/2,canvas.height/2);
ctx.rotate(deg * Math.PI / 180);
ctx.drawImage(img, -img.width/2,-img.height/2);
return canvas.toDataURL('image/png');
}
function makeCancel() {
$('#dst').remove();
$dst = $('<img id="dst" />');
$('#containment').append($dst);
setZoom($dst);
}
function updateMenuMode(closing) {
if (typeof closing === 'undefined') closing = false;
$('#menumode .subitem').addClass('disabled');
//console.log($('#menumode .subitem'));
$('#menumode .subitem').removeClass('checked');
if (closing === false) {
if (Context.Depth === 'RGB') {
$('#mirgb').addClass('checked');
$('#mirgb').removeClass('disabled');
$('#migrayscale').removeClass('disabled');
$('#miindexed').removeClass('disabled');
$('#mibitmap').removeClass('disabled');
} else if (Context.Depth === 'Grayscale') {
$('#mirgb').removeClass('disabled');
$('#migrayscale').removeClass('disabled');
$('#migrayscale').addClass('checked');
$('#miindexed').removeClass('disabled');
$('#mibitmap').removeClass('disabled');
} else if (Context.Depth === 'Indexed') {
$('#mirgb').removeClass('disabled');
$('#migrayscale').removeClass('disabled');
$('#miindexed').removeClass('disabled');
$('#miindexed').addClass('checked');
$('#mibitmap').addClass('disabled');
} else if (Context.Depth === 'Bitmap') {
$('#mirgb').addClass('disabled');
$('#migrayscale').removeClass('disabled');
$('#miindexed').addClass('disabled');
$('#mibitmap').removeClass('disabled');
$('#mibitmap').addClass('checked');
}
} else $('#mirgb').addClass('checked');
}
function enableMenusOnOpen() {
if (typeof window.webpSupported === 'undefined') window.webpSupported = isSupported('webp');
$('#miclose').removeClass('disabled');
$('#misave').removeClass('disabled');
$('#milevels').removeClass('disabled');
$('#miinvert').removeClass('disabled');
$('#mifliphorizontal').removeClass('disabled');
$('#miflipvertical').removeClass('disabled');
$('#mirotate180').removeClass('disabled');
$('#mirotate90CW').removeClass('disabled');
$('#mirotate90CCW').removeClass('disabled');
$('#mihuesaturation').removeClass('disabled');
$('#mibrightnesscontrast').removeClass('disabled');
$('#misigmoidalcontrast').removeClass('disabled');
$('#michannelmixer').removeClass('disabled');
$('#miposterize').removeClass('disabled');
$('#mithreshold').removeClass('disabled');
$('#midesaturate').removeClass('disabled');
$('#miblur').removeClass('disabled');
$('#miblurmore').removeClass('disabled');
$('#misharpen').removeClass('disabled');
$('#misharpenmore').removeClass('disabled');
$('#misolarize').removeClass('disabled');
$('#mipseudocolor').removeClass('disabled');
$('#miarbitraryrotation').removeClass('disabled');
$('#miresize').removeClass('disabled');
$('#microp').removeClass('disabled');
$('#miequalize').removeClass('disabled');
$('#minormalize').removeClass('disabled');
$('#mistretch').removeClass('disabled');
$('#miautogamma').removeClass('disabled');
$('#mihistogram').removeClass('disabled');
$('#mipixelate').removeClass('disabled');
$('#mimedian').removeClass('disabled');
$('#migaussian').removeClass('disabled');
$('#misobel').removeClass('disabled');
$('#milaplace').removeClass('disabled');
$('#midistorsine').removeClass('disabled');
$('#minoise').removeClass('disabled');
$('#midespeckle').removeClass('disabled');
$('#miboxblur').removeClass('disabled');
$('#miemboss').removeClass('disabled');
$('#miembossmediumgray').removeClass('disabled');
$('#miunsharpmask').removeClass('disabled');
$('#midiffgauss').removeClass('disabled');
$('#miautocontrast').removeClass('disabled');
$('#micolorbalance').removeClass('disabled');
$('#mipinch').removeClass('disabled');
$('#mizoom').removeClass('disabled');
$('#mitwirl').removeClass('disabled');
$('#mihalftone').removeClass('disabled');
$('#milensblur').removeClass('disabled');
$('#mitriangleblur').removeClass('disabled');
$('#mivibrance').removeClass('disabled');
$('#misepia').removeClass('disabled');
$('#micharcoal').removeClass('disabled');
$('#misketch').removeClass('disabled');
$('#miink').removeClass('disabled');
$('#miedgework').removeClass('disabled');
$('#midenoise').removeClass('disabled');
$('#mihexagonalpixelate').removeClass('disabled');
$('#mivignette').removeClass('disabled');
$('#mitiltshift').removeClass('disabled');
$('#mioil').removeClass('disabled');
$('#mimorphology').removeClass('disabled');
$('#mimotionblur').removeClass('disabled');
$('#mibilateral').removeClass('disabled');
$('#mibilateral2').removeClass('disabled');
$('#mierosion').removeClass('disabled');
$('#midialation').removeClass('disabled');
$('#micurves').removeClass('disabled');
$('#miphotofilter').removeClass('disabled');
$('#miexposure').removeClass('disabled');
$('#miglow').removeClass('disabled');
$('#misobelim').removeClass('disabled');
$('#miwatercolor').removeClass('disabled');
$('#midisperse').removeClass('disabled');
$('#micrystallize').removeClass('disabled');
$('#misoftlight').removeClass('disabled');
$('#midavehilleffect').removeClass('disabled');
$('#mifrosted').removeClass('disabled');
$('#milucisarteffect').removeClass('disabled');
$('#mishadowhighlight').removeClass('disabled');
$('#micopy').removeClass('disabled');
$('#miexporttopng').removeClass('disabled');
$('#miexporttojpeg').removeClass('disabled');
if (window.webpSupported) $('#miexporttowebp').removeClass('disabled');
$('#mihuerangesaturation').removeClass('disabled');
$('#miturbulence').removeClass('disabled');
$('#miimexporttowebp').removeClass('disabled');
updateMenuMode();
}
function disableMenusOnClose() {
$('#miclose').addClass('disabled');
$('#misave').addClass('disabled');
$('#milevels').addClass('disabled');
$('#miinvert').addClass('disabled');
$('#mifliphorizontal').addClass('disabled');
$('#miflipvertical').addClass('disabled');
$('#mirotate180').addClass('disabled');
$('#mirotate90CW').addClass('disabled');
$('#mirotate90CCW').addClass('disabled');
$('#mihuesaturation').addClass('disabled');
$('#mibrightnesscontrast').addClass('disabled');
$('#misigmoidalcontrast').addClass('disabled');
$('#michannelmixer').addClass('disabled');
$('#miposterize').addClass('disabled');
$('#mithreshold').addClass('disabled');
$('#midesaturate').addClass('disabled');
$('#miblur').addClass('disabled');
$('#miblurmore').addClass('disabled');
$('#misharpen').addClass('disabled');
$('#misharpenmore').addClass('disabled');
$('#misolarize').addClass('disabled');
$('#mipseudocolor').addClass('disabled');
$('#miarbitraryrotation').addClass('disabled');
$('#miresize').addClass('disabled');
$('#microp').addClass('disabled');
$('#miequalize').addClass('disabled');
$('#minormalize').addClass('disabled');
$('#mistretch').addClass('disabled');
$('#miautogamma').addClass('disabled');
$('#mihistogram').addClass('disabled');
$('#mipixelate').addClass('disabled');
$('#mimedian').addClass('disabled');
$('#migaussian').addClass('disabled');
$('#misobel').addClass('disabled');
$('#milaplace').addClass('disabled');
$('#midistorsine').addClass('disabled');
$('#minoise').addClass('disabled');
$('#midespeckle').addClass('disabled');
$('#miboxblur').addClass('disabled');
$('#miemboss').addClass('disabled');
$('#miembossmediumgray').addClass('disabled');
$('#miunsharpmask').addClass('disabled');
$('#midiffgauss').addClass('disabled');
$('#miautocontrast').addClass('disabled');
$('#micolorbalance').addClass('disabled');
$('#mipinch').addClass('disabled');
$('#mizoom').addClass('disabled');
$('#mitwirl').addClass('disabled');
$('#mihalftone').addClass('disabled');
$('#milensblur').addClass('disabled');
$('#mitriangleblur').addClass('disabled');
$('#mivibrance').addClass('disabled');
$('#misepia').addClass('disabled');
$('#micharcoal').addClass('disabled');
$('#misketch').addClass('disabled');
$('#miink').addClass('disabled');
$('#miedgework').addClass('disabled');
$('#midenoise').addClass('disabled');
$('#mihexagonalpixelate').addClass('disabled');
$('#mivignette').addClass('disabled');
$('#mitiltshift').addClass('disabled');
$('#mioil').addClass('disabled');
$('#mimorphology').addClass('disabled');
$('#mimotionblur').addClass('disabled');
$('#mibilateral').addClass('disabled');
$('#mibilateral2').addClass('disabled');
$('#mierosion').addClass('disabled');
$('#midialation').addClass('disabled');
$('#micurves').addClass('disabled');
$('#miphotofilter').addClass('disabled');
$('#miexposure').addClass('disabled');
$('#miglow').addClass('disabled');
$('#misobelim').addClass('disabled');
$('#miwatercolor').addClass('disabled');
$('#midisperse').addClass('disabled');
$('#micrystallize').addClass('disabled');
$('#misoftlight').addClass('disabled');
$('#midavehilleffect').addClass('disabled');
$('#mifrosted').addClass('disabled');
$('#milucisarteffect').addClass('disabled');
$('#mishadowhighlight').addClass('disabled');
$('#micopy').addClass('disabled');
$('#miexporttopng').addClass('disabled');
$('#miexporttojpeg').addClass('disabled');
$('#miexporttowebp').addClass('disabled');
$('#mihuerangesaturation').addClass('disabled');
$('#miturbulence').addClass('disabled');
$('#miimexporttowebp').addClass('disabled');
updateMenuMode(true);
}
function makeOpenFile() {
var file = document.querySelector('#fileinput').files[0];
if (typeof file != 'undefined') {
if (file.type.match(/^image\/(jpg|jpeg|webp|png|gif)/)) {
var reader = new FileReader();
reader.addEventListener("load", function () {
makeOpen(reader.result, file.name, file.type);
}, false);
reader.readAsDataURL(file);
} else {
//alert('Only PNG, JPEG, WEBP and GIF are handled.');
$('#mb_unsupported').messageBox('open');