jQuery has a built-in method for this: $(window).resize(function () { /* do something */ }); For the sake of UI responsiveness, you might consider using a setTimeout to call your code only after some number of milliseconds, as shown in the following example, inspired by this: function doSomething() { alert(“I’m done resizing for the moment”); … Read more
Here’s a gist which does this: https://gist.github.com/dcollien/312bce1270a5f511bf4a (an es6 version, and a .js version which can be included in a script tag) You can use it as follows: <input type=”file” id=”select”> <img id=”preview”> <script> document.getElementById(‘select’).onchange = function(evt) { ImageTools.resize(this.files[0], { width: 320, // maximum width height: 240 // maximum height }, function(blob, didItResize) { // … Read more
A couple of suggestions are provided as answers to this question. I had suggested the technique described in this post, with the relevant code: + (UIImage*)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize; { UIGraphicsBeginImageContext( newSize ); [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)]; UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return newImage; } As far as storage of the image, the fastest image format to use with … Read more
You can use setTimeout() and clearTimeout() function resizedw(){ // Haven’t resized in 100ms! } var doit; window.onresize = function(){ clearTimeout(doit); doit = setTimeout(resizedw, 100); }; Code example on jsfiddle.
I think this is a really cool method: /** * Conserve aspect ratio of the original region. Useful when shrinking/enlarging * images to fit into a certain area. * * @param {Number} srcWidth width of source image * @param {Number} srcHeight height of source image * @param {Number} maxWidth maximum available width * @param {Number} … Read more
The problem with your very nice example may be platform dependent, but I can offer a few observations: You’re not adding or removing components, so you don’t need revalidate(). Because the background color is a bound property of the buttons, you don’t need the subsequent calls to repaint(). You do need repaint() in your custom … Read more
You need to inform C++ (specifically std::vector) that your move constructor and destructor does not throw, using noexcept. Then the move constructor will be called when the vector grows. This is how to declare and implement a move constuctor that is respected by std::vector: A(A && rhs) noexcept { std::cout << “i am the move … Read more
This will perform a high quality resize: /// <summary> /// Resize the image to the specified width and height. /// </summary> /// <param name=”image”>The image to resize.</param> /// <param name=”width”>The width to resize to.</param> /// <param name=”height”>The height to resize to.</param> /// <returns>The resized image.</returns> public static Bitmap ResizeImage(Image image, int width, int height) { … Read more
The simplest way to resize an UIImage?
Creating a textarea with auto-resize