Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'stackblur-canvas' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
image.onload = () => {
const { width, height } = image
canvas.width = width
canvas.height = height
ctx.drawImage(image, 0, 0, width, height)
// console.time('blur')
canvasRGB(canvas, 0, 0, width, height, radius)
// console.timeEnd('blur')
canvas.toBlob(blob => {
window.webkitRequestFileSystem(window.TEMPORARY, this.spaceSize, fs => {
fs.root.getFile('wallpaper-blur.jpg', { create: true }, fileEntry => {
fileEntry.createWriter(fileWriter => {
let truncated = false
fileWriter.onerror = e => console.error(e)
fileWriter.onwriteend = function () {
if (!truncated) {
truncated = true
this.truncate(this.position)
return
}
// console.log(Date.now())
// saveSettings({ blurRadius: radius })
if (typeof callback === 'function') {
context.fillRect(0, 0, naturalWidth, naturalHeight);
};
const drawImage = () => {
context.drawImage(imageNode, 0, 0, naturalWidth, naturalHeight);
};
// const now = performance.now();
// blur image.
const isCanvasFilter = false && "filter" in context; // canvas filter is not good.
if (isCanvasFilter) {
context.filter = `blur(${blurSize}px)`;
drawImage();
context.filter = "blur(0px)";
fillRect();
} else {
drawImage();
stackBlurCanvas.canvasRGBA(canvas, 0, 0, naturalWidth, naturalHeight, blurSize);
fillRect();
}
// console.log(performance.now() - now);
toUrl(canvas, imageUrl => {
acrylicTexture.texture = imageUrl;
acrylicTexture.isCanvasFilter = isCanvasFilter;
updateAcrylicTexture();
});
};
}
on(sd, 'load', () => {
const canvas = imgToCanvas(sd);
stackblur.canvasRGB(canvas, 0, 0, canvas.width, canvas.height, 10);
element.style['background-image'] = `${bgPrefix}url(${canvas.toDataURL('image/png')})`;
// Load high quality version after low quality one
hd.src = hdSrc;
on(hd, 'load', () => {
element.style['background-image'] = `${bgPrefix}url(${hd.src})`;
});
});
});
self.canvas = canvas
self.blurEl.appendChild(self.canvas)
canvas.style.position = 'absolute'
const clientRect = canvas.getBoundingClientRect()
canvas.style.top = `${-clientRect.top + window.scrollY}px`
canvas.style.left = `${-clientRect.left + window.scrollX}px`
self.canvas.style.transform = `translate(-${window.scrollX}px, -${window.scrollY}px)`
if (firstTime) {
}
// blurring body
StackBlur.canvasRGB(
canvas,
0,
0,
canvas.width,
canvas.height,
self.props.blur
)
}
})
blurRadius
} = this;
const body = document.window
? document.window.document.body
: null;
const canvas = ctx.canvas as HTMLCanvasElement;
// StackBlur requires canvas be on document
canvas.id = document.getUniqueId();
if (body) {
canvas.style.display = 'none';
body.appendChild(canvas);
}
canvasRGBA(canvas, x, y, width, height, blurRadius);
if (body) {
body.removeChild(canvas);
}
}
}
this.apply = function (ctx, x, y, width, height) {
if (!StackBlur || typeof StackBlur.canvasRGBA === 'undefined') {
svg.log('ERROR: StackBlur.js must be included for blur to work');
return;
}
// StackBlur requires canvas be on document
ctx.canvas.id = svg.UniqueId();
if (!nodeEnv) {
ctx.canvas.style.display = 'none';
doc.body.appendChild(ctx.canvas);
}
StackBlur.canvasRGBA(ctx.canvas, x, y, width, height, this.blurRadius);
if (!nodeEnv) {
doc.body.removeChild(ctx.canvas);
}
}
}
this.apply = function (ctx, x, y, width, height) {
if (!StackBlur || typeof StackBlur.canvasRGBA === 'undefined') {
svg.log('ERROR: StackBlur.js must be included for blur to work');
return;
}
// StackBlur requires canvas be on document
ctx.canvas.id = svg.UniqueId();
if (!nodeEnv) {
ctx.canvas.style.display = 'none';
doc.body.appendChild(ctx.canvas);
}
StackBlur.canvasRGBA(ctx.canvas, x, y, width, height, this.blurRadius);
if (!nodeEnv) {
doc.body.removeChild(ctx.canvas);
}
}
}
drawRightPane() {
const ctx = this.ctx;
const rightGradient = ctx.createLinearGradient(this.widthLeftPane, 0, this.widthLeftPane, this.height);
rightGradient.addColorStop(0, 'rgba(23, 218, 214, 0.75)');
rightGradient.addColorStop(0.5, 'rgba(33, 136, 179, 0.75)');
rightGradient.addColorStop(1, 'rgba(43, 56, 144, 0.75)');
const picture = new Image(this.width, this.height);
picture.src = this.avatarData;
const imageCanvas = createCanvas(this.width, this.height);
const ictx = imageCanvas.getContext('2d');
ictx.drawImage(picture, this.width * 0.3, 0, this.width, this.height);
StackBlur.canvasRGB(imageCanvas, 0, 0, this.width, this.height, 20);
ctx.drawImage(imageCanvas, 0, 0, this.width, this.height);
ctx.fillStyle = rightGradient;
ctx.fillRect(this.widthLeftPane, 0, this.widthRightPane, this.canvas.height);
}
const applyFilter = (ctx, frame, name, value) => {
if (name === 'contrast') {
applyContrast(ctx, frame, value);
} else {
const [x, y, w, h] = frame;
const scale = window.devicePixelRatio || 1;
StackBlur.canvasRGB(ctx.canvas, x, y, w*scale, h*scale, value);
}
};
if (nProps.reset || nProps.image !== this.props.image) {
let ctx = this.cCam.getContext('2d');
ctx.clearRect(0, 0, 227, 227);
ctx = this.cImg.getContext('2d');
drawImage(ctx, nProps.image, function(img) {
predict(img, nProps.net, null, function(top, activation) {
let rows = createCompRows(top, null);
this.setState({
results: rows,
activation: activation,
cam: [-1]
});
}.bind(this));
}.bind(this));
} else if (nProps.blur) {
canvasRGB(this.cImg, 0, 0, 227, 227, this.props.blurSize);
predict(this.cImg, nProps.net, classes, function(top, activation) {
let rows = createCompRows(top, this.props.topK);
this.setState({
results: rows,
activation: activation
});
}.bind(this));
}
this.props = nProps;
}