function img_assist_display in Image Assist 6.2

Same name and namespace in other branches

1. 5.3 img_assist.module \img_assist_display()
2. 5 img_assist.module \img_assist_display()
3. 5.2 img_assist.module \img_assist_display()
4. 6 img_assist.module \img_assist_display()

Create an IMG tag for an image.

This is nearly identical to image_display, but

• it uses a more efficient regenerate images routine
• the size attribute can be a custom size OR a standard size

Related topics

4 calls to img_assist_display()

img_assist_popup in ./img_assist.module

img_assist_properties_form in ./img_assist.module

Construct the image properties form.

template_preprocess_img_assist_browser_thumbnail in theme/theme.inc

Setup variables for the browser thumbnail template.

theme_img_assist_inline in ./img_assist.module

File

./img_assist.module, line 1248

Image Assist module

Code

function img_assist_display(&$node, $size = NULL, $attributes = array()) {

  // Custom size should include values for label, width, and height.
  if (is_array($size) && !empty($size['key']) && !empty($size['width']) && !empty($size['height'])) {
    $label = $size['key'];
  }
  elseif ($size) {

    // Size can be an array without the width and/or height.
    if (is_array($size)) {

      // Size is no longer an array.
      $size = $size['key'];
    }
    $label = $size;
  }
  else {
    $label = IMAGE_THUMBNAIL;
  }

  // Regenerate images if necessary.
  $regen = FALSE;
  if (!isset($node->images[$label])) {
    $regen = TRUE;
  }
  elseif (!is_file(file_create_path($node->images[$label]))) {
    $regen = TRUE;
  }
  elseif (filemtime(file_create_path($node->images[$label])) < variable_get('image_updated', 0)) {
    $regen = TRUE;
  }
  else {

    // If $size is not an array, try to find the corresponding predefined size.
    // _image_build_derivatives() blindly assigns the *original* image file to
    // all derivative image sizes that are smaller than the original image size.
    // Without re-assigning the actual derivative size definition, img_assist
    // would assume that this derivative size does not exist, delete the
    // *original* file and subsequently fail to generate derivative images.
    // Also, when one predefined size has changed, the derivative sizes need to
    // be updated.
    if (!is_array($size)) {
      foreach (image_get_sizes() as $std_size) {
        if (isset($std_size['key']) && $std_size['key'] == $label) {
          $size = $std_size;
          break;
        }
      }
    }
    if (is_array($size)) {
      $info = image_get_info(file_create_path($node->images[$label]));
      if ($info['width'] != $size['width'] && $info['height'] != $size['height']) {
        $regen = TRUE;
      }
    }
  }
  if ($regen) {
    _img_assist_build_derivatives($node, $size);
  }
  return image_display($node, $label);
}