[themes] add color choices to theme and insert a css

[Tracey Hummel]

I got this to work using this in my template.php file:

   $banners = theme_get_setting('banners');
    switch($banners) {
         case ("white-gray"):
           drupal_add_css(path_to_theme() . '/white-gray.css', 'theme', 
  'all');
           break;
         case ("blue-gray"):
           drupal_add_css(path_to_theme() . '/blue-gray.css', 'theme',  'all');
           break;
         default:
           drupal_add_css(path_to_theme() . '/red-blue.css', 'theme', 'all');
           break;
     }

And this in my theme-settings.php file:

<?php
function graphicDesign_settings(&$saved_settings) {
   $defaults = array(
     'banners'              => 'red-blue',
   );
$settings = array_merge($defaults, $saved_settings);

   $form['banners'] = array(
     '#type'    => 'select',
     '#options' => array(
                'red-blue' => 'Red/Blue',
                'blue-gray' => 'Blue/Gray',
                'white-gray' => 'White/Dark Gray'),
     '#default_value' => $settings['banners'],
     '#title'   => t('Choose a Banner Color Combination'),
    );
return $form;
}





Quoting Brent Hardinge <brent at hardinge.net>:

> Tracey,
>
> It seems that in order to get the css into the system, you need to use
> drupal_add_css outside of the preprocess function because it is the
> template_preprocess_page function that is used to add the css to the
> $variables['styles'] function.
>
> So what I would recommend doing is adding the following at near the
> top of your template.css file:
>
> drupal_add_css(path_to_theme() . '/' .theme_get_setting('banners')
> .'.css', 'theme', 'all');
>
> That should replace your switch function and print the appropriate css
> file based on the settings.
>
> Cheers,
> Brent
> ---------------------------------------------------------
> Design / Interaction / Strategy
> http://brenthardinge.net
> ---------------------------------------------------------
>
>
>
> On Mon, Nov 9, 2009 at 10:00 AM, Tracey Hummel
> <thummel at email.arizona.edu> wrote:
>> My trying a add page preprocess that will allow site administrators 
>> to be able
>> to configure a theme and choose different banners/color 
>> combinations. Based on
>> what they select, a different css file would be added that would modify the
>> banners graphics/colors.
>>
>> I added three choices to the theme's configuration page by adding 
>> this to the
>> theme-settings.php file:
>>
>>
>> function graphicDesign_settings(&$saved_settings) {
>>   $defaults = array(
>>     'banners'              => 'red-blue',
>>   );
>> $settings = array_merge($defaults, $saved_settings);
>>
>>   $form['banners'] = array(
>>     '#type'    => 'select',
>>     '#options' => array(
>>                'red-blue' => 'Red/Blue',
>>                'blue-gray' => 'Blue/Gray',
>>                'white-gray' => 'White/Dark Gray'),
>>     '#default_value' => $settings['banners'],
>>     '#title'   => t('Choose a Banner Color Combination'),
>>    );
>> return $form;
>> }
>>
>>
>> In the template.php file, I'm trying to use the variable passed to add a css
>> file based on what they select.  In the template.php file:
>>
>> function graphicDesign_preprocess_page(&$vars) {
>>   $banners = theme_get_setting('banners');
>>   drupal_set_message(print_r($banners,true));
>>
>>   switch($banners) {
>>     case ("white-gray"):
>>       drupal_add_css(path_to_theme() . '/white-gray.css', 'theme', 'all');
>>       break;
>>     case ("blue-gray"):
>>       drupal_add_css(path_to_theme() . '/blue-gray.css', 'theme',  'all');
>>       break;
>>     default:
>>       drupal_add_css(path_to_theme() . '/red-blue.css', 'theme', 'all');
>>       break;
>>   }
>> }
>>
>> The css is not being added.  Is anyone doing something similar and would be
>> willing to help me?
>>
>> Thanks,
>> Tracey
>>
>> --
>> Tracey Hummel
>> Web Developer
>> University Information Technology Services
>> Learning Technologies Services
>> University of Arizona
>> (520) 626-5139
>> tracey at uainfo.arizona.edu
>>
>>
>>
>>
>>
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>>