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Image Drop
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| height: 600 | |
| scrolling: no | |
| border: yes |
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| <script async src=https://cdn.JsDelivr.net/npm/p5></script> | |
| <script defer src=sketch.js></script> |
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| /** | |
| * Image Drop (v3.0.4) | |
| * GoToLoop (2017-Oct-26) (2015-Nov-25) | |
| * | |
| * https://Forum.Processing.org/two/discussion/24750/ | |
| * p5js-drag-n-drop-hover-not-working-why#Item_3 | |
| * | |
| * https://Forum.Processing.org/two/discussion/13650/ | |
| * dropped-image-not-showing-in-the-draw-loop-gotfile-createimg-image#Item_4 | |
| * | |
| * https://Bl.ocks.org/GoSubRoutine/22e47de702d3c8d86585f80f652d8179 | |
| * http://p5js.SketchPad.cc/sp/pad/view/ro.CYTkHWj9smgw8Q/latest | |
| */ | |
| "use strict"; | |
| let img, bg, hover; | |
| function setup() { | |
| createCanvas(800, 600).drop(gotFile).dragOver(highlight).dragLeave(redraw); | |
| textAlign(CENTER).textSize(32).textStyle(BOLD).noLoop(); | |
| colorMode(RGB).imageMode(CORNER); | |
| fill('yellow').noStroke(); | |
| bg = color(0o200); | |
| hover = color('red'); | |
| } | |
| function draw() { | |
| background(bg); | |
| if (img) image(img, 0, 0, width, height); | |
| else text('Drag an image file onto the canvas.', width>>1, height>>1); | |
| } | |
| function gotFile(f) { | |
| print(`File "${f.name}" was dropped into sketch's canvas.`); | |
| if (f.type === 'image') return img = loadImage(f.data, redraw, console.error); | |
| console.warn(`However, type "${f.type}" isn't an image!`); | |
| redraw(); | |
| } | |
| function highlight(evt) { | |
| this.background(hover); | |
| evt.preventDefault(); | |
| } |
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