[development] Image Theming

Steve Ringwood nevets at tds.net
Wed May 23 18:11:56 UTC 2012


     You can enable the alt attribute for the image fields and that should handle that.
     You should probably use css to style the image and not attach a style attribute to the img tag


On 5/23/2012 12:41 PM, Cameron B. Prince wrote:
> Hi,
> I recently needed to insert an image from an image field into the node's body prior to rendering. I was able to do this using this code:
> function THEME_preprocess_field(&$vars) {
>    if ($vars['element']['#object']->type == 'case_study'&&  $vars['element']['#field_name'] == 'body') {
>      $node = node_load($vars['element']['#object']->nid);
>      $img = field_get_items('node', $node, 'field_cs_image');
>      $img = field_view_value('node', $node, 'field_cs_image', $img[0], array(
>        'type' =>  'image',
>        'settings' =>  array(
>          'image_style' =>  'list_image_large',
>        )
>      ));
>      $img = render($img);
>      $vars['items'][0]['#markup'] = str_replace('alt=""', 'style="float:right;margin:0 0 20px 20px" alt="' . $node->title . '"', $img) . $vars['items'][0]['#markup'];
>    }
> }
> I don't like having to use the str_replace() function to specify attributes for the image but my efforts to use theme('image', ...) and theme('image_style', ...) were unsuccessful because they don't include width and height attributes.
> I saw the big thread with Dave Reid on the performance issue with getsize(). I understand the reasoning for removing the function but how is it that rendering the image with field_view_value() produces an image tag with width and height attributes? Couldn't the theme functions use the same method?
> Is there a better or more proper way to render an image with width and height attributes AND specify other attributes such as alt and style?
> Thanks,
> Cameron

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