Enabling users to replace site title (text) with a image logo (but keeping the text if there isn't any image)?

Question

I would like to know if there's a way of giving an option (in the admin panel) to the user to change the text of the site title for an uploaded logo image.

So basically it would go like this:

If there's an uploaded image for the site title, don't show the text otherwise just display the site title text.

Does anyone know any tutorial or how to do it?

Thanks in advance!

Answer 1

I figured out how:

<?php

    // Theme Options
    require_once(TEMPLATEPATH . '/functions/admin-menu.php');

    add_action( 'wp_head', 'theme_options');

    function theme_options() {
        // Initiate Theme Options
        $options = get_option('plugin_options');

        // If logo image was uploaded then remove text from site title
        if ($options['logo'] != NULL)
          $remove_text = '-9999px';
        else
          $remove_text = 0;

        ?><style>
        body {
            background-color: <?php echo $options['color_scheme']; ?>
        }

        #header h1 a {
            background: url(<?php echo $options['logo']; ?>) no-repeat scroll 0 0;
            text-indent: <?php echo $remove_text; ?>;
        }
        </style><?php

    }

(The code works but please let me know if there's a cleaner or easier way of doing this)

Answer 2

You can do that using a theme options page - here is a tutorial Once you've added an options page, you add in it a field for site logo.

in the theme code you check if this field was assigned a value, and assign the tite accordingly