Test of dynamically changing images or removing and re-applying the cropper
<!-- Copyright (c) 2006, David Spurr (www.defusion.org.uk)
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted
provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list of conditions
and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions
and the following disclaimer in the documentation and/or other materials provided with the
distribution.
* Neither the name of the David Spurr nor the names of its contributors may be used to endorse or
promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
http://www.opensource.org/licenses/bsd-license.php -->
<!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="./cropperlib/prototype.js" type="text/javascript"></script>
<script src="./cropperlib/scriptaculous.js?load=builder,dragdrop" type="text/javascript"></script>
<script src="./cropperlib/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="./cropperlib/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="./cropperlib/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="./cropperlib/castle.jpg|500|333">Castle</option>
<option value="./cropperlib/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>
jsCropperUI-1.2.0.zip( 189 k)Related examples in the same category