Use of magnifier script code

Matze · Post by **Matze** » Tue Jul 18, 2023 12:48 am

Hi all,
I want to figure out how it is possible to insert magnifier code on images. It needs a bit code, but in Flare it does not work.

Such as this:

https://www.w3schools.com/howto/tryit.a ... fier_glass

When inserting some error messages appear.

So have you code which is working in Flare?

Thx

sarrantsvt · Post by **sarrantsvt** » Tue Jul 18, 2023 6:50 am

It works for me. Did you use Insert > Script to insert the script code?

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<html xmlns:MadCap="http://www.madcapsoftware.com/Schemas/MadCap.xsd">
    <head>
        <style>
			* {box-sizing: border-box;}

			.img-magnifier-container {
			position:relative;
			}

			.img-magnifier-glass {
			position: absolute;
			border: 3px solid #000;
			border-radius: 50%;
			cursor: none;
			/*Set the size of the magnifier glass:*/
			width: 100px;
			height: 100px;
			}
		</style>
        <script type="text/javascript">/*<![CDATA[*/function magnify(imgID, zoom) {
  var img, glass, w, h, bw;
  img = document.getElementById(imgID);
  /*create magnifier glass:*/
  glass = document.createElement("DIV");
  glass.setAttribute("class", "img-magnifier-glass");
  /*insert magnifier glass:*/
  img.parentElement.insertBefore(glass, img);
  /*set background properties for the magnifier glass:*/
  glass.style.backgroundImage = "url('" + img.src + "')";
  glass.style.backgroundRepeat = "no-repeat";
  glass.style.backgroundSize = (img.width * zoom) + "px " + (img.height * zoom) + "px";
  bw = 3;
  w = glass.offsetWidth / 2;
  h = glass.offsetHeight / 2;
  /*execute a function when someone moves the magnifier glass over the image:*/
  glass.addEventListener("mousemove", moveMagnifier);
  img.addEventListener("mousemove", moveMagnifier);
  /*and also for touch screens:*/
  glass.addEventListener("touchmove", moveMagnifier);
  img.addEventListener("touchmove", moveMagnifier);
  function moveMagnifier(e) {
    var pos, x, y;
    /*prevent any other actions that may occur when moving over the image*/
    e.preventDefault();
    /*get the cursor's x and y positions:*/
    pos = getCursorPos(e);
    x = pos.x;
    y = pos.y;
    /*prevent the magnifier glass from being positioned outside the image:*/
    if (x > img.width - (w / zoom)) {x = img.width - (w / zoom);}
    if (x < w / zoom) {x = w / zoom;}
    if (y > img.height - (h / zoom)) {y = img.height - (h / zoom);}
    if (y < h / zoom) {y = h / zoom;}
    /*set the position of the magnifier glass:*/
    glass.style.left = (x - w) + "px";
    glass.style.top = (y - h) + "px";
    /*display what the magnifier glass "sees":*/
    glass.style.backgroundPosition = "-" + ((x * zoom) - w + bw) + "px -" + ((y * zoom) - h + bw) + "px";
  }
  function getCursorPos(e) {
    var a, x = 0, y = 0;
    e = e || window.event;
    /*get the x and y positions of the image:*/
    a = img.getBoundingClientRect();
    /*calculate the cursor's x and y coordinates, relative to the image:*/
    x = e.pageX - a.left;
    y = e.pageY - a.top;
    /*consider any page scrolling:*/
    x = x - window.pageXOffset;
    y = y - window.pageYOffset;
    return {x : x, y : y};
  }
}/*]]>*/</script>
    </head>
    <body>
        <h1>Image Magnifier Glass</h1>
        <p>Mouse over the image:</p>
        <div class="img-magnifier-container">
            <p>
                <img id="myimage" src="Resources/Images/img_girl.jpg" width="600" height="400" />
            </p>
        </div>
        <p>Feel free to change the strength of the magnifier glass when initiating the magnify function.</p>
        
            <script type="text/javascript">/*<![CDATA[*//* Initiate Magnify Function
with the id of the image, and the strength of the magnifier glass:*/
magnify("myimage", 3);/*]]>*/</script>
        
    </body>
</html>

Matze · Post by **Matze** » Wed Jul 19, 2023 1:29 am

perfectly GREAT - Thanks. Indeed, I´d forgotten nesting my code in CDATA tags. Now it works fine, nice

Matze · Post by **Matze** » Fri Jul 21, 2023 1:59 am

unfortunatelly it does not work with svg-files, but we will see....

Matze · Post by **Matze** » Mon Jul 24, 2023 5:40 am

corrections... It works fine with svg, was a adobe illustrator problem. The other thing is to level up the java script performance

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Use of magnifier script code

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