Image Formatter Snippets


By default Symfony displays forms in tables, with each new input being a table row. If you want to display your forms more semantically with fieldsets and lists, Symfony has a list formatter built in. You can tell an individual form to display as a list using the code below.

The example below shows how to produce a png image from python code, but pygments supports lexers for many other languages and its formatter classes can produce other image formats too. The ImageFormatter class allows to set various parameters of the resulting images.

To create the formatter paste this code into a new file and name it sfWidgetFormSchemaFormatterDefList.class.php. I saved it in /lib but it also makes sense to put it in /lib/form, depending on your personal preference.

How to display visitors IP in an Image using PHP

05 December, 2012   

Instead of providing a traditional address to the image, the image file data is base64-encoded and stuffed within the src attribute. Doing so saves a network request for each image, and prevent exposure of directory paths. Please note that IE7 and below are not compatibles with data URIs.

Essentially the trick is to draw the panel/frame/etc.

Essentially the trick is to draw the panel/frame/etc. into a BufferedImage and use the ImageIO class to write it to an image file.

28 January, 2013   

Save a screen capture of a Java Frame/Panel/Window

15 April, 2012   

PHP code example for an image CAPTCHA.

I had to scan a bunch of paper documents (one image per page), and upload them all to a web site that would accept only one PDF file containing the whole set.

02 June, 2011   

This is your most basic version of an image CAPTCHA.

Java code example to create thumbnail of an image

18 February, 2012   

CSS code example for a background image repeat vertically (y-axis), horizontally (x-axis), in both directions, or in neither direction.

This PHP script will get the day of the week from the server date and then display an image (jpg or gif) to match.

16 March, 2011   

Take an image, and put a water mark on top of it. Note that you can only use this function once per page.

19 April, 2011   

This snippet shows how to get the thumbnail from exif metadata. This is very useful for generating very fast thumbnails!! I hope many would benefit from this.

08 December, 2012   

Full screen background image using pure CSS3.

13 February, 2013   

PHP Code example for ASCII CAPTCHA

04 May, 2011   

Take a JPG image, and convert it to ASCII code!

CSS Code example : how to repeat a background image only horizontally.