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<?php |
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// $Id: image_exact.module,v 1.3 2006/05/13 20:56:36 joshk Exp $ |
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/** |
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* Implementation of hook_help(). |
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*/ |
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function image_exact_help($section) { |
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switch ($section) { |
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case 'admin/modules#description': |
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return t("Implements exact-size image thumbnail and avatars via cropping, based on max h/w from the image content type settings."); |
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} |
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} |
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/* |
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* Implementation of hook_settings |
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*/ |
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function image_exact_settings() { |
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if (!image_get_toolkit()) { |
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drupal_set_message('You must enable an image toolkit for this module to work!', 'error'); |
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} |
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else { |
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$image_settings = l('image settings page', 'admin/settings/image'); |
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$user_settings = l('user settings page', 'admin/settings/user'); |
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$form['image_exact_nodes'] = array( |
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'#type' => 'fieldset', |
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'#title' => t('Image Node Settings'), |
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'#collapsible' => true, |
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'#collapsed' => false, |
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); |
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$form['image_exact_nodes']['image_exact_thumbs'] = array( |
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'#type' => 'checkbox', |
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'#title' => t('Use exact sizes for image-nodes'), |
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'#default_value' => variable_get('image_exact_thumbs', 1), |
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'#description' => t('If checked, this will force images of the size(s) checked below (as defined on the %link) to be exactly the size specified. Otherwise, the settings below will be ignored.', array('%link' => $image_settings)), |
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); |
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foreach (_image_get_sizes() as $count => $size) { |
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$options[$count] = $size['label']; |
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} |
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$form['image_exact_nodes']['image_exact_size'] = array( |
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'#type' => 'checkboxes', |
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'#title' => t('Specific Image Size Settings'), |
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'#default_value' => variable_get('image_exact_size', array(0)), |
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'#options' => $options, |
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'#description' => t('Each image size checked will be cropped and resized to the specified size defined in the %link. Note that existing images will not be resized until viewing that specific image edit tab, and possibly refreshing the browser.', array('%link' => $image_settings)), |
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); |
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if (variable_get('image_exact_avatars', 0)) { |
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list($final_w, $final_h) = explode('x', variable_get('user_picture_dimensions', '85x85')); |
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$w = round($final_w / 2); |
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$h = round($final_h / 2); |
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$form['image_exact_warning'] = array( |
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'#title' => t('Exact Avatar Size'), |
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'#value' => t('NOTICE: your exact-size avatars will be sized at %w pixels wide and %h pixels tall. To change this enter DOUBLE your desired amount on the %link', array('%link' => $user_settings, '%w' => $w, '%h' => $h)) |
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); |
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} |
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$form['image_exact_avatars'] = array( |
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'#type' => 'checkbox', |
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'#title' => t('Use exact sizes for avatars?'), |
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'#default_value' => variable_get('image_exact_avatars', 0), |
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'#description' => t('Because of how the avatar system works, you need to enter a value in the %link that is DOUBLE what you want the real avatar size to be. If you want 85x85 exact, check the above box, then change the setting on the %link to 170x170', array('%link' => $user_settings)), |
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); |
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} |
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return $form; |
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} |
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/* |
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* Implementation of hook_nodeapi |
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* |
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* Looks for images and if the setting is set will resize thumbs |
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*/ |
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function image_exact_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) { |
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//Set thumbnail final dimensions here - use settings from image content type. |
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if ($node->type == 'image' && $op == 'validate' && variable_get('image_exact_thumbs', 1)) { |
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$sizes = _image_get_sizes(); |
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foreach(variable_get('image_exact_size', array(0)) as $i) { |
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// for ($i = 0; $i < 5; $i++) { |
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$source = file_create_path($node->images['_original']); |
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$destination = file_create_path($node->images[$sizes[$i]['label']]); |
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$final_w = $sizes[$i]['width']; |
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$final_h = $sizes[$i]['height']; |
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if ($final_w && $final_h) { |
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image_exact_resize($source, $destination, $final_w, $final_h); |
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} |
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} |
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} |
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} |
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/* |
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* Implementation of hook_user |
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* Handles exact-sizes for avatars |
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*/ |
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function image_exact_user($op, &$edit, &$user, $category = NULL) { |
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if ($op == 'validate' && variable_get('image_exact_avatars', 0)) { |
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list($final_w, $final_h) = explode('x', variable_get('user_picture_dimensions', '190x190')); |
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$w = round($final_w / 2); |
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$h = round($final_h / 2); |
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image_exact_resize($edit['picture'], $edit['picture'], $w, $h); |
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} |
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} |
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function image_exact_resize($source, $destination, $final_w, $final_h) { |
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if (file_exists($source)) { |
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$source_info = image_get_info($source); |
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$source_ar = $source_info['width'] / $source_info['height']; |
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if ($source_info['width'] > $final_w && $source_info['height'] > $final_h) { |
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// only proceed if we've got a big enough source file... don't stretch a tiny one |
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$final_ar = $final_w / $final_h; |
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if($source_ar > $final_ar) { //Too wide! |
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$width = round($source_info['width'] / ($source_ar / $final_ar)); |
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$x = round(($source_info['width'] - $width) / 2); // Start the crop at the halfway point to retain center |
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$y = 0; |
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$height = $source_info['height']; |
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image_crop($source,$destination,$x,$y,$width,$height); |
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// drupal_set_message("Crop: $x,$y,$width,$height",'message'); |
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} elseif ($source_ar < $final_ar) { // Too tall! |
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$height = round($source_info['height'] * ($source_ar / $final_ar)); |
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$y = round(($source_info['height'] - $height) / 2); //Start the crop at the halfway point to retain center |
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$x = 0; |
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$width = $source_info['width']; |
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image_crop($source,$destination,$x,$y,$width,$height); |
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// drupal_set_message("Crop: $x,$y,$width,$height",'message'); |
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} |
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} |
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image_resize($destination, $destination, $final_w, $final_h); |
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// drupal_set_message("Resize: $final_w, $final_h",'message'); |
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if(!file_exists($destination)) { |
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drupal_set_message("Image_exact: Image resize failed.","error"); |
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} |
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} else { |
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drupal_set_message('image_exact: File does not exist.','error'); |
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} |
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} |
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?> |
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