It took me a while to work this out, but it was worth it. base64 encoding can be really useful in presenting and storing images on the web. However you don't want to add a 2000 pixel width base64 encoded image to your database. Here's how to resize the image before it goes in.
<?php
$file = 'mypic.jpg';
$image = imagecreatefromjpeg($file);
$image = imagescale($image , 100);
ob_start();
imagejpeg($image);
$contents = ob_get_contents();
ob_end_clean();
$dataUri = "data:image/jpeg;base64,".base64_encode($contents);
echo '<img src="'.$dataUri.'" />';
?>
Showing posts with label resize. Show all posts
Showing posts with label resize. Show all posts
Monday, 15 August 2016
Monday, 21 March 2016
H1 shows window width
I'm often trying understand which media queries to add to my CSS in order to control changes in the display of content. For this I need to see the window width as it resizes. There are other ways, but I find it more convenient if the page title show the window width.
To enable this, I add the following jQuery code, which is also available as a public gist here.
$(window).resize(function()
{
$('h1').text($(window).width());
});
To enable this, I add the following jQuery code, which is also available as a public gist here.
$(window).resize(function()
{
$('h1').text($(window).width());
});
Wednesday, 23 March 2011
Resize chosen fonts dynamically
Again, I can't take much credit for this. The real credit goes to the author of this blog entry http://www.pukkared.com/2010/10/resizing-text-with-jquery-and-window-resize/. I have just made a few changes and calls for my own purposes. Namely, passing which fonts I would like to resize, what the original size should be and what size the page should be before resizing begins. Enjoy!
See demo.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Dynamic font resize</title>
<style>
body
{
font-family:Sans-serif;
}
</style>
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("jquery", "1");
google.load("jqueryui", "1");
</script>
<script>
$.fn.resizeFonts = function(fontName, originalFontSize)
{
var originalWinWidth = $(window).width();
var ratioOfChange = 50;
$(fontName).css('font-size', originalFontSize);
$(window).resize(function()
{
var winWidth = $(window).width();
var widthDiff = winWidth - originalWinWidth;
if(widthDiff > 0)
{
var pixelsToIncrease = Math.round(widthDiff / ratioOfChange);
var newFontSize = originalFontSize + pixelsToIncrease;
$(fontName).css('font-size', newFontSize);
}
else
{
var pixelsToDecrease = Math.round(Math.abs(widthDiff) / ratioOfChange);
var newFontSize = originalFontSize - pixelsToDecrease;
$(fontName).css('font-size', newFontSize);
}
})
}
$(document).ready(function()
{
$(window).resize(function() {
if($(this).width() < 800)
{
$(this).resizeFonts('h1',20);
$(this).resizeFonts('p',10);
}
});
});
</script>
</head>
<body>
<h1>Big Mick's Recipe Book</h1>
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, commodo vitae, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci, sagittis tempus lacus enim ac dui. Donec non enim in turpis pulvinar facilisis. Ut felis. Praesent dapibus, neque id cursus faucibus, tortor neque egestas augue, eu vulputate magna eros eu erat. Aliquam erat volutpat. Nam dui mi, tincidunt quis, accumsan porttitor, facilisis luctus, metus</p>
</body>
</html>
See demo.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Dynamic font resize</title>
<style>
body
{
font-family:Sans-serif;
}
</style>
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("jquery", "1");
google.load("jqueryui", "1");
</script>
<script>
$.fn.resizeFonts = function(fontName, originalFontSize)
{
var originalWinWidth = $(window).width();
var ratioOfChange = 50;
$(fontName).css('font-size', originalFontSize);
$(window).resize(function()
{
var winWidth = $(window).width();
var widthDiff = winWidth - originalWinWidth;
if(widthDiff > 0)
{
var pixelsToIncrease = Math.round(widthDiff / ratioOfChange);
var newFontSize = originalFontSize + pixelsToIncrease;
$(fontName).css('font-size', newFontSize);
}
else
{
var pixelsToDecrease = Math.round(Math.abs(widthDiff) / ratioOfChange);
var newFontSize = originalFontSize - pixelsToDecrease;
$(fontName).css('font-size', newFontSize);
}
})
}
$(document).ready(function()
{
$(window).resize(function() {
if($(this).width() < 800)
{
$(this).resizeFonts('h1',20);
$(this).resizeFonts('p',10);
}
});
});
</script>
</head>
<body>
<h1>Big Mick's Recipe Book</h1>
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, commodo vitae, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci, sagittis tempus lacus enim ac dui. Donec non enim in turpis pulvinar facilisis. Ut felis. Praesent dapibus, neque id cursus faucibus, tortor neque egestas augue, eu vulputate magna eros eu erat. Aliquam erat volutpat. Nam dui mi, tincidunt quis, accumsan porttitor, facilisis luctus, metus</p>
</body>
</html>
Tuesday, 17 August 2010
Resize Background Image
I've often seen background images being resized on designer websites and wondered, how do they do that? Anyway, here's how.
See demo.
<!DOCTYPE html>
<html lang=”en”>
<head>
<meta charset="UTF-8">
<title>Resize Background Image</title>
<style type="text/css">
html, body
{
margin:0;
font-family:Sans-serif;
}
#background
{
position:absolute;
z-index:-1;
width:100%;
height:100%;
}
#mainContent
{
margin:0 auto;
width:800px;
padding:10px;
background:#FFFFFF;
color:#A3A3A3;
}
</style>
</head>
<body>
<img id="background" src="http://farm5.static.flickr.com/4140/4947943522_5ba46ef4df.jpg" alt="windFarm" />
<br /><br />
<div id="mainContent">
<h1>Hello World!</h1>
</div>
</body>
</html>
See demo.
<!DOCTYPE html>
<html lang=”en”>
<head>
<meta charset="UTF-8">
<title>Resize Background Image</title>
<style type="text/css">
html, body
{
margin:0;
font-family:Sans-serif;
}
#background
{
position:absolute;
z-index:-1;
width:100%;
height:100%;
}
#mainContent
{
margin:0 auto;
width:800px;
padding:10px;
background:#FFFFFF;
color:#A3A3A3;
}
</style>
</head>
<body>
<img id="background" src="http://farm5.static.flickr.com/4140/4947943522_5ba46ef4df.jpg" alt="windFarm" />
<br /><br />
<div id="mainContent">
<h1>Hello World!</h1>
</div>
</body>
</html>
Monday, 16 August 2010
How to make a sticky footer
Sometimes you want the footer of your page to always be available at the same height no matter how much you resize your web browser. This is called a sticky footer. Here is a pretty simple way to code it for your site.
See demo.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Sticky footer</title>
<style type="text/css">
html, body
{
font-family:Sans-serif;
height:100%;
margin: 0 auto;
color:#000000;
}
#container
{
height:90%;
}
#footer
{
height:10%;
clear:both;
background:#A3A3A3;
color:#FFFFFF;
}
</style>
</head>
<body>
<div id="container">
<h1>This is a sticky footer example</h1>
</div>
<div id="footer">This is my sticky footer</div>
</body>
</html>
See demo.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Sticky footer</title>
<style type="text/css">
html, body
{
font-family:Sans-serif;
height:100%;
margin: 0 auto;
color:#000000;
}
#container
{
height:90%;
}
#footer
{
height:10%;
clear:both;
background:#A3A3A3;
color:#FFFFFF;
}
</style>
</head>
<body>
<div id="container">
<h1>This is a sticky footer example</h1>
</div>
<div id="footer">This is my sticky footer</div>
</body>
</html>
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