<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="en-us" /> <title>Dynamic image test</title> <script src="../lib/prototype.js" type="text/javascript"></script> <script src="../lib/scriptaculous.js?load=builder,dragdrop" type="text/javascript"></script> <script src="../cropper.js" type="text/javascript"></script> <script type="text/javascript" charset="utf-8"> /** * A little manager that allows us to swap the image dynamically * */ var CropImageManager = { /** * Holds the current Cropper.Img object * @var obj */ curCrop: null, /** * Initialises the cropImageManager * * @access public * @return void */ init: function() { this.attachCropper(); }, /** * Handles the changing of the select to change the image, the option value * is a pipe seperated list of imgSrc|width|height * * @access public * @param obj event * @return void */ onChange: function( e ) { var vals = $F( Event.element( e ) ).split('|'); this.setImage( vals[0], vals[1], vals[2] ); }, /** * Sets the image within the element & attaches/resets the image cropper * * @access private * @param string Source path of new image * @param int Width of new image in pixels * @param int Height of new image in pixels * @return void */ setImage: function( imgSrc, w, h ) { $( 'testImage' ).src = imgSrc; $( 'testImage' ).width = w; $( 'testImage' ).height = h; this.attachCropper(); }, /** * Attaches/resets the image cropper * * @access private * @return void */ attachCropper: function() { if( this.curCrop == null ) this.curCrop = new Cropper.Img( 'testImage', { onEndCrop: onEndCrop } ); else this.curCrop.reset(); }, /** * Removes the cropper * * @access public * @return void */ removeCropper: function() { if( this.curCrop != null ) { this.curCrop.remove(); } }, /** * Resets the cropper, either re-setting or re-applying * * @access public * @return void */ resetCropper: function() { this.attachCropper(); } }; // setup the callback function function onEndCrop( coords, dimensions ) { $( 'x1' ).value = coords.x1; $( 'y1' ).value = coords.y1; $( 'x2' ).value = coords.x2; $( 'y2' ).value = coords.y2; $( 'width' ).value = dimensions.width; $( 'height' ).value = dimensions.height; } // basic example Event.observe( window, 'load', function() { CropImageManager.init(); Event.observe( $('removeCropper'), 'click', CropImageManager.removeCropper.bindAsEventListener( CropImageManager ), false ); Event.observe( $('resetCropper'), 'click', CropImageManager.resetCropper.bindAsEventListener( CropImageManager ), false ); Event.observe( $('imageChoice'), 'change', CropImageManager.onChange.bindAsEventListener( CropImageManager ), false ); } ); /* if( typeof(dump) != 'function' ) { Debug.init(true, '/'); function dump( msg ) { Debug.raise( msg ); }; } else dump( '---------------------------------------\n' ); */ </script> <link rel="stylesheet" type="text/css" href="debug.css" media="all" /> <style type="text/css"> label { clear: left; margin-left: 50px; float: left; width: 5em; } html, body { margin: 0; } #testWrap { margin: 20px 0 0 50px; /* Just while testing, to make sure we return the correct positions for the image & not the window */ } </style> </head> <body> <h2>Dynamic image test</h2> <p> Test of dynamically changing images or removing & re-applying the cropper </p> <div id="testWrap"> <img src="castle.jpg" alt="test image" id="testImage" width="500" height="333" /> </div> <p> <label for="imageChoice">image:</label> <select name="imageChoice" id="imageChoice"> <option value="castle.jpg|500|333">Castle</option> <option value="poppy.jpg|311|466">Flower</option> </select> </p> <p> <input type="button" id="removeCropper" value="Remove Cropper" /> <input type="button" id="resetCropper" value="Reset Cropper" /> </p> <p> <label for="x1">x1:</label> <input type="text" name="x1" id="x1" /> </p> <p> <label for="y1">y1:</label> <input type="text" name="y1" id="y1" /> </p> <p> <label for="x2">x2:</label> <input type="text" name="x2" id="x2" /> </p> <p> <label for="y2">y2:</label> <input type="text" name="y2" id="y2" /> </p> <p> <label for="width">width:</label> <input type="text" name="width" id="width" /> </p> <p> <label for="height">height</label> <input type="text" name="height" id="height" /> </p> </body> </html>