Moving Files

data/scripts/autocrop.js

@@ -1,51 +0,0 @@
-//Create canvas for cropping the image
-        var cropCanvas = document.createElement("canvas")
-        var cropContext = cropCanvas.getContext("2d")
-        cropCanvas.onload = function() {
-            //document.body.appendChild(cropCanvas) //For testing purposes only
-        }
-        //Function that auto crops the image
-        function autocrop(url, destination) {
-            //Create image, size canvas, draw image
-            var imgTempSetSymbol = new Image()
-            imgTempSetSymbol.src = url
-            imgTempSetSymbol.onload = function() {
-                if (imgTempSetSymbol.width > 0 && imgTempSetSymbol.height > 0) {
-                cropCanvas.width = imgTempSetSymbol.width
-                cropCanvas.height = imgTempSetSymbol.height
-                cropContext.drawImage(imgTempSetSymbol, 0, 0)
-                //declare variables
-                var width = cropCanvas.width
-                var height = cropCanvas.height
-                var pix = {x:[], y:[]}
-                var imageData = cropContext.getImageData(0,0,cropCanvas.width,cropCanvas.height)
-                var x, y, index
-                //Go through every pixel and
-                for (y = 0; y < height; y++) {
-                    for (x = 0; x < width; x++) {
-                        //(y * width + x) * 4 + 3 calculates the index at which the alpha value of the pixel at x, y is given
-                        index = (y * width + x) * 4 + 3
-                        if (imageData.data[index] > 0) {
-                            //pix is the image object that stores two arrays of x and y coordinates. These stored coordinates are all the visible pixels
-                            pix.x.push(x)
-                            pix.y.push(y)
-                        }
-                    }
-                }
-                //sorts the arrays numerically
-                pix.x.sort(function(a,b){return a-b})
-                pix.y.sort(function(a,b){return a-b})
-                var n = pix.x.length - 1
-                //Finds the difference between the leftmost and rightmost visible pixels, and the topmost and bottommost pixels, cuts out a section of the canvas
-                width = pix.x[n] - pix.x[0]
-                height = pix.y[n] - pix.y[0]
-                var cropped = cropContext.getImageData(pix.x[0], pix.y[0], width + 1, height + 1)
-                //Resizes the canvas and draws cropped image
-                cropCanvas.width = width
-                cropCanvas.height = height
-                cropContext.putImageData(cropped, 0, 0)
-                //Saves the newly cropped image to the given image
-                destination.src = cropCanvas.toDataURL()
-            }
-        }
-        }