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Codium Extend
Child-Theme > Function.php > Header Size (2 posts)

  1. Luis
    Member
    Posted 2 years ago #

    I have codium-extended theme for my site http://www.aeriport.mobi.

    I have a codium-extended-child for some changes to the standard theme. For the moment, only the style.css file

    Wanted to change the header. Last time I did it in the parernt theme and with the new update changes to the heather were gone. Now I want to use it a function.php file in my child directory.

    From the theme functions.php I saw the code to use, which I think is the following:

    // This theme allows users to set a custom header image
    	define('HEADER_TEXTCOLOR', '444');
    	define('HEADER_IMAGE_WIDTH', 980); // use width and height appropriate for your theme
    	define('HEADER_IMAGE_HEIGHT', 125);

    Do you know what more code I have to include in the function.php file please. I think It should be a condition, but I am not a code expert.

    If you can help me I would be very greatful.

    Luis

    http://wordpress.org/extend/themes/codium-extend/

  2. TechDistortion
    Member
    Posted 2 years ago #

    Hi Luis,

    It may be a little late but I found myself in the same situation you were in just two days ago. After a lot of searching and learning how WordPress have implemented their PHP/CSS I came to the following solution.

    Before I go on I need to say that this is likely not the only solution nor is it necessarily the best solution I know only that it works well for me on my site: techdistortion.com

    The way codium-extend creates its custom header is by using the function add_custom_image_header() and it references two functions to do so: codium_extend_header_style() and codium_extend_admin_header_style(). These are all located in the functions.php file in the parent theme (codium-extend). Since you can't redefine previously defined variables and since you can't over-ride already defined functions neatly, it's just easier to ignore those two functions created by codium-extend and simply create your own. He's what I did:

    <?php
    // gets included in the site header
    function td_header_style() {
        ?><style type="text/css">
        div#header {
        background: url("http://techdistortion.com/wp-content/themes/codium-extend-td/TD-1090x120.png") no-repeat;
        height :120px;
        -moz-border-radius:6px;
        border-radius:6px;
    }
    <?php if ( 'blank' == get_header_textcolor() ) { ?>
        h1.blogtitle,.description { display: none; }
        <?php } else { ?>
        h1.blogtitle a,.description { color:#<?php header_textcolor() ?>; }
        <?php
        } ?>
        </style><?php
    }
    
        // gets included in the admin header
    function td_admin_header_style() {
        ?><style type="text/css">
        #headimg {
        width:1090px;
        height:120px;
        }
        </style><?php
    }
    ?>

    After this we've now setup the two functions how we want them and it's time to remove the existing image header for which WordPress provide a function appropriately called remove_custom_image_header(). In order to execute this and our two new functions we need to wrap them in an action that takes place after the theme has finished its setup (if we don't we'll be removing an image header that hadn't been created yet = this is bad) as follows:

    <?php
        add_action( 'after_setup_theme','remove_image_header', 100 );
        function remove_image_header() {
            remove_custom_image_header();
            add_custom_image_header('td_header_style', 'td_admin_header_style');
        }
    ?>

    Of course you can name your two new functions whatever you like but I prefixed mine with "td" after my site.

    All of this is all well and sedentary but the problem is that as of WordPress v3.4 (not released yet but will be soon) the add_customer_image_header is going to be deprecated. It's advisable then to look into add_theme_support ('custom header'); after that point. I'm assuming there will be an update to codium-extend to support add_theme_support at that time.

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