/ Published in: JavaScript
<p>How to use: HTML:
<img id="image" src="image.png" alt=""/></p>
<p>JavaScript:
add_reflection (document.getElementById ( 'image'), 1, 1, 0.1, 0); </p>
<p>As a result, the script wrap image in the div, ask him to the desired height and width and put reflection of image</p>
<p>PS Sorry for my english</p>
<img id="image" src="image.png" alt=""/></p>
<p>JavaScript:
add_reflection (document.getElementById ( 'image'), 1, 1, 0.1, 0); </p>
<p>As a result, the script wrap image in the div, ask him to the desired height and width and put reflection of image</p>
<p>PS Sorry for my english</p>
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/** * @param image document.getElementById('image') * @param h_coef Stretcher reflection coefficient * @param opacity_start The initial value of opacity * @param opacity_end The ultimate value of the opacity * @param mode 0 = vertical reflection, 1 = horizontal */ function add_reflection(image, h_coef, opacity_start, opacity_end, mode) { var container = document.createElement('div'); var ref_height, ref_width, div_height, div_width; if (0 == mode) { ref_height = Math.floor(image.height * h_coef); ref_width = image.width; div_height = Math.floor(image.height * (1 + h_coef)); div_width = ref_width; } else { ref_width = Math.floor(image.width * h_coef); ref_height = image.height; div_height = ref_height div_width = Math.floor(image.width * (1 + h_coef)); } var reflection; if (!window.opera && document.all) { reflection = document.createElement('img'); reflection.src = image.src; reflection.style.width = image.width + 'px'; if (0 == mode) { reflection.style.filter = 'flipv progid:DXImageTransform.Microsoft.Alpha(opacity='+(opacity_start*100)+', style=1, finishOpacity='+(opacity_end*100)+', startx=0, starty=0, finishx=0, finishy='+(h_coef*100)+')'; } else { reflection.style.filter = 'fliph progid:DXImageTransform.Microsoft.Alpha(opacity='+(opacity_start*100)+', style=1, finishOpacity='+(opacity_end*100)+', startx=0, starty=0, finishx='+(h_coef*100)+', finishy=0)'; } container.style.width = div_width + 'px'; container.style.height = div_height + 'px'; image.parentNode.replaceChild(container, image); container.appendChild(image); container.appendChild(reflection); } else { reflection = document.createElement('canvas'); var context = reflection.getContext('2d'); reflection.style.height = ref_height + 'px'; reflection.style.width = ref_width + 'px'; reflection.height = ref_height; reflection.width = ref_width; container.style.width = div_width + 'px'; container.style.height = div_height + 'px'; image.parentNode.replaceChild(container, image); container.appendChild(image); container.appendChild(reflection); context.save(); var gradient; if (0 == mode) { context.translate(0, image.height); context.scale(1, -1); gradient = context.createLinearGradient(0, 0, 0, ref_height); } else { context.translate(image.width, 0); context.scale(-1, 1); gradient = context.createLinearGradient(0, 0, ref_width, 0); } context.drawImage(image, 0, 0, image.width, image.height); context.restore(); context.globalCompositeOperation = "destination-out"; gradient.addColorStop(1, "rgba(255, 255, 255, " + (1 - opacity_end) + ")"); gradient.addColorStop(0, "rgba(255, 255, 255, " + (1 - opacity_start) + ")"); context.fillStyle = gradient; if (-1 != navigator.appVersion.indexOf('WebKit')) { context.fill(); } else { context.fillRect(0, 0, image.width, 2*ref_height); } } }
URL: http://blog.sjinks.org.ua/javascript/356-image-reflection-with-javascript/