📄 example-dimensions.htm
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<!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>Different dimensions 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"> 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; } /* // example with minimum dimensions Event.observe( window, 'load', function() { new Cropper.Img( 'testImage', { minWidth: 200, minHeight: 120, maxWidth: 200, //maxHeight: 120, displayOnInit: true, onEndCrop: onEndCrop } ) } ); */ Event.observe( window, 'load', function() { Event.observe( 'dimensionsForm', 'submit', CropManager.attachCropper.bindAsEventListener( CropManager ) ); CropManager.attachCropper(); } ); /** * A little manager that allows us to reset the options dynamically */ var CropManager = { /** * Holds the current Cropper.Img object * @var obj */ curCrop: null, /** * Gets a min/max parameter from the form * * @access private * @param string Form element ID * @return int */ getParam: function( name ) { var val = $F( name ); console.log( name + ' :: ' + val ); return parseInt( val ); }, /** * Attaches/resets the image cropper * * @access private * @param obj Event object * @return void */ attachCropper: function( e ) { if( this.curCrop == null ) { this.curCrop = new Cropper.Img( 'testImage', { minWidth: this.getParam( 'minWidth' ), minHeight: this.getParam( 'minHeight' ), maxWidth: this.getParam( 'maxWidth' ), maxHeight: this.getParam( 'maxHeight' ), onEndCrop: onEndCrop } ); } else { this.removeCropper(); this.curCrop.initialize( 'testImage', { minWidth: this.getParam( 'minWidth' ), minHeight: this.getParam( 'minHeight' ), maxWidth: this.getParam( 'maxWidth' ), maxHeight: this.getParam( 'maxHeight' ), onEndCrop: onEndCrop } ); } if( e != null ) Event.stop( e ); }, /** * 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(); } }; /* 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; } #testWrap { margin: 20px 0 0 50px; /* Just while testing, to make sure we return the correct positions for the image & not the window */ } #dimensionsForm { float: right; width: 350px; } </style></head><body> <h2>Multiple dimensions tests</h2> <p> Test of applying different dimension restrictions to the cropper </p> <form action="#" id="dimensionsForm"> <fieldset> Set the cropper with the following dimension restrictions: <p> <label for="minWidth">Min Width</label> <input type="text" size="10" maxlength="3" value="200" id="minWidth" name="minWidth" /> </p> <p> <label for="maxWidth">Max Width</label> <input type="text" size="10" maxlength="3" value="200" id="maxWidth" name="maxWidth" /> </p> <p> <label for="minHeight">Min Height</label> <input type="text" size="10" maxlength="3" value="120" id="minHeight" name="minHeight" /> </p> <p> <label for="maxHeight">Max Height</label> <input type="text" size="10" maxlength="3" value="120" id="maxHeight" name="maxHeight" /> </p> <input type="submit" value="Set Cropper" /> </fieldset> </form> <div id="testWrap"> <img src="castle.jpg" alt="test image" id="testImage" width="500" height="333" /> </div> <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>⌨️ 快捷键说明
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