imagecrop.admin.inc in Image javascript crop 6

Administration functions for Imagecrop
@date Nov 3, 2010
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imagecrop.admin.inc
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<?php

/**
 * @file
 * Administration functions for Imagecrop
 *
 * @date
 * Nov 3, 2010
 */

/**
 * Imagecrop settings page
 */
function imagecrop_settings() {

  // hook into image module
  if (module_exists('image')) {
    $options_modules['image'] = t('Hook into image module');
  }

  // hook into taxonomy_image module
  if (module_exists('taxonomy_image')) {
    $options_modules['taxonomy_image'] = t('Hook into taxonomy image module');
  }
  if (variable_get('user_pictures', 0)) {
    $options_modules['profile_picture'] = t('Hook into profile picture');
  }

  // hook into node_images module
  if (module_exists('node_images')) {
    $result = db_query("SELECT name,value FROM {variable} WHERE name LIKE 'node_images_position_%'");
    if ($result) {
      drupal_set_message(t('When you want to enable support for the node_images module, please read the README that comes with the imagecrop module.'));
      while ($row = db_fetch_object($result)) {
        if (variable_get($row->name, 'hide') != 'hide') {
          $explode = explode('_', $row->name);
          $options_modules[$row->name] = t('Hook into node_images module for <em>content type @type</em>', array(
            '@type' => $explode[3],
          ));
        }
      }
    }
  }

  // show checkboxes if options are not empty
  if (!empty($options_modules)) {
    $form['imagecrop_modules'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Hook into modules'),
      '#default_value' => variable_get('imagecrop_modules', array()),
      '#options' => $options_modules,
    );
    $form['array_filter'] = array(
      '#type' => 'hidden',
    );
  }
  else {
    $form['no_modules_fields'] = array(
      '#type' => 'item',
      '#value' => t('No supported modules were found to hook into.'),
    );
  }
  if (module_exists('imagefield')) {
    $form['imagefield'] = array(
      '#type' => 'item',
      '#value' => t('Imagecrop settings for CCK Imagefields are found on the field configuration pages.'),
    );
  }
  $all_popups = array(
    'basic' => t('Basic popup window'),
  );
  foreach (module_implements('imagecrop_popups') as $module_name) {
    $function = $module_name . '_imagecrop_popups';
    $popups = $function();
    if (is_array($popups)) {
      $all_popups += $popups;
    }
  }
  $form['imagecrop_popup'] = array(
    '#type' => 'radios',
    '#title' => t('Popup window type'),
    '#default_value' => variable_get('imagecrop_popup', 'basic'),
    '#options' => $all_popups,
  );
  $form['imagecrop_popup_width'] = array(
    '#type' => 'textfield',
    '#title' => t('Popup window width'),
    '#default_value' => variable_get('imagecrop_popup_width', 700),
    '#size' => 4,
    '#field_suffix' => 'pixels',
  );
  $form['imagecrop_popup_height'] = array(
    '#type' => 'textfield',
    '#title' => t('Popup window height'),
    '#default_value' => variable_get('imagecrop_popup_height', 600),
    '#size' => 4,
    '#field_suffix' => 'pixels',
  );
  $form['imagecrop_scale_step'] = array(
    '#type' => 'textfield',
    '#title' => t('Step size for scale dropdown'),
    '#default_value' => variable_get('imagecrop_scale_step', 50),
    '#size' => 4,
    '#field_suffix' => 'pixels',
    '#description' => t('Setting the step to 0, will hide the dropdown'),
  );

  // drupal message if no action is found with javascript_crop
  if (count(imagecrop_presets_list()) == 0) {
    drupal_set_message(t('No preset is found with the javascript_crop action so far. If you want to take advantage of this module, you will need to create at least one preset with that action.'));
  }
  return system_settings_form($form);
}

/**
 * Show the cropped image.
 *
 * @param $fid file id
 * @param $presetname name of active preset
 * @return cropped version of chosen image
 */
function imagecrop_showcrop($fid, $presetname = '', $module = '', $field = '', $node_type = '') {

  // Send the Modal Frame javascript for child windows to the page.
  if (variable_get('imagecrop_popup', 'basic') == 'imagecrop_modalframe') {
    imagecrop_modalframe_js();
  }
  imagecrop_markup(FALSE, TRUE);
  $presets = return_presets($presetname, $module, $field, $node_type);
  if (count($presets) == 0) {
    return '<div id="imagecrop_info"  class="imagecrop_error">' . t('No preset is found with the javascript_crop action so far. If you want to take advantage of this module, you will need to create at least one preset with that action.') . '</div>';
  }
  $presetname = $presets['active_preset'];
  $file = create_image_object($fid, $presetname, $module, TRUE);
  if (!$file) {
    return '<div id="imagecrop_info" class="imagecrop_error">' . t('Image to crop was not found.') . '</div>';
  }
  $output = theme('presettabs', $presets, $fid, $presetname, $module, $field, $node_type);
  $module = !empty($module) ? '/' . $module : '';
  $field = !empty($field) ? '/' . $field : '';
  $node_type = !empty($node_type) ? '/' . $node_type : '';
  $output .= '<div id="imagecrop_help">' . l(t('Click here to choose another crop area for this picture'), 'imagecrop/docrop/' . $fid . '/' . $presetname . $module . $field . $node_type, array(
    'attributes' => array(
      'class' => 'modalframe-exclude',
    ),
  )) . '</div>';
  $output .= theme('imagecrop_result', $file->presetname, $file->filepath);
  return $output;
}

/**
 * Callback with javascript crop.
 *
 * @param $fid id of file
 * @param $presetname Name of preset to be cropped
 */
function imagecrop_docrop($fid, $presetname, $module = '', $field = '', $node_type = '') {
  $presets = return_presets($presetname, $module, $field, $node_type);

  // no presets found for imagecrop
  if (count($presets) == 0) {
    return '<div id="imagecrop_info" class="imagecrop_error">' . t('No preset is found with the javascript_crop action so far. If you want to take advantage of this module, you will need to create at least one preset with that action.') . '</div>';
  }
  module_invoke_all('imagecrop_settings_update', $fid, $presetname, $module, $field, $node_type);
  $file = create_image_object($fid, $presetname, $module);
  imagecrop_markup(TRUE, TRUE);

  // no image found
  if (!$file) {
    return '<div id="imagecrop_info" class="imagecrop_error">' . t('Image to crop was not found.') . '</div>';
  }
  $size_warning = FALSE;

  // get size of temporary image
  $size = getimagesize($file->dst);
  $width = $size[0];
  $height = $size[1];

  // return warning message if crop toolbox is too big and not resizable.
  if (($width < $file->crop_width || $height < $file->crop_height) && $file->resizable == 0) {
    $size_warning = FALSE;
  }

  // add jquery ui only if jcrop is disabled
  if ($file->resizable) {
    $aspect = FALSE;

    // set aspect ration if needed
    if ($file->aspect) {
      if (is_numeric($file->aspect)) {
        $aspect = $file->aspect;
      }
    }

    // add imagecrop aspect setting
    drupal_add_js(array(
      'imagecrop' => array(
        'resize' => 1,
        'aspectRatio' => $aspect,
        'minWidth' => $file->min_width,
        'minHeight' => $file->min_height,
        'width' => $file->preset_width,
        'height' => $file->preset_height,
      ),
    ), 'setting');
  }
  else {
    drupal_add_js(array(
      'imagecrop' => array(
        'resize' => '0',
      ),
    ), 'setting');
  }

  // output
  if ($size_warning == FALSE) {
    $url = file_create_url($file->dst);
    $url .= strstr($url, '?') ? '&time=' . time() : '?time=' . time();
    $output = theme('presettabs', $presets, $fid, $presetname, $module, $field, $node_type);
    $output .= '<div id="imagecrop_help">' . t("Resize image if needed, then select a crop area. Click 'Crop image thumbnail' to save your selection.") . '</div>';
    $output .= theme('imagecrop', $url, $width, $height, $file->resizable);
    $output .= drupal_get_form('imageoffsets_form', $file, $presetname, $fid, $module, $field, $node_type);
  }
  else {
    $output .= '<div id="imagecrop_info" class="imagecrop_error">' . t('The crop toolbox is too big for this image.') . ' <a href="javascript:history.back();"><span class="white">' . t('Back') . '</span></a></div>';
  }
  return $output;
}

/**
 * Callback to return offsets, height & width
 *
 * @param $file current file being cropped
 * @param $preset Preset beïng cropped
 * @param $fid id of file
 * @param $module specific module
 * @return array $form
 */
function imageoffsets_form(&$form_state, $file, $preset, $fid, $module, $field, $node_type) {
  $step = variable_get('imagecrop_scale_step', 50);
  $aspect = $file->orig_width / $file->orig_height;
  $options = array();
  if ($step > 0) {
    $original_width = $file->orig_width;
    $options['original'] = $file->orig_width . ' x ' . $file->orig_height . 'px (Original)';
    $file->orig_width -= $step;
    while ($file->orig_width > $file->crop_width && $file->orig_width / $aspect > $file->crop_height) {
      $options[$file->orig_width] = $file->orig_width . ' x ' . intval($file->orig_width / $aspect) . 'px (' . round($file->orig_width / $original_width * 100, 2) . '%)';
      $file->orig_width -= $step;
    }
  }
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Crop image thumbnail'),
    '#prefix' => '<table id="imagecrop_table_actions"><tr><td>',
    '#suffix' => '</td>',
  );

  // only show when there are multiple scaling options available
  if (count($options) > 1) {
    $form['scaling'] = array(
      '#type' => 'select',
      '#options' => $options,
      '#default_value' => $file->scale,
      '#prefix' => '<td id="imagecrop-throbber">',
      '#suffix' => '</td></tr></table>',
      '#attributes' => array(
        'onchange' => "\$('#imagecrop-throbber').addClass('show'); \$('#edit-scaledown').click();",
      ),
    );
    $form['scaledown'] = array(
      '#type' => 'submit',
      '#value' => t('Scale image'),
      '#attributes' => array(
        'style' => "display:none;",
      ),
    );
  }
  $form['image-crop-x'] = array(
    '#type' => 'hidden',
    '#default_value' => $file->xoffset,
    '#attributes' => array(
      'class' => 'edit-image-crop-x',
    ),
  );
  $form['image-crop-y'] = array(
    '#type' => 'hidden',
    '#default_value' => $file->yoffset,
    '#attributes' => array(
      'class' => 'edit-image-crop-y',
    ),
  );
  $form['image-crop-width'] = array(
    '#type' => 'hidden',
    '#default_value' => $file->crop_width,
    '#attributes' => array(
      'class' => 'edit-image-crop-width',
    ),
  );
  $form['image-crop-height'] = array(
    '#type' => 'hidden',
    '#default_value' => $file->crop_height,
    '#attributes' => array(
      'class' => 'edit-image-crop-height',
    ),
  );
  $form['fid'] = array(
    '#type' => 'hidden',
    '#value' => $fid,
  );
  $form['module'] = array(
    '#type' => 'hidden',
    '#value' => $module,
  );
  $form['field'] = array(
    '#type' => 'hidden',
    '#value' => $field,
  );
  $form['node_type'] = array(
    '#type' => 'hidden',
    '#value' => $node_type,
  );
  $form['presetname'] = array(
    '#type' => 'hidden',
    '#value' => $preset,
  );
  $form['preset-destination'] = array(
    '#type' => 'hidden',
    '#value' => $file->preset_destination,
  );
  $form['temp-preset-destination'] = array(
    '#type' => 'hidden',
    '#value' => $file->dst,
  );
  return $form;
}

/**
 * Save the offset & size values
 *
 * @param $form_id id of the form
 * @param $form_values submitted values of the imageoffsets form
 */
function imageoffsets_form_submit($form, &$form_state) {
  if ($form_state['values']['op'] == t('Scale image')) {
    $form_state['values']['image-crop-x'] = 0;
    $form_state['values']['image-crop-y'] = 0;
  }
  $form_state['values']['image-crop-x'] = max($form_state['values']['image-crop-x'], 0);
  $form_state['values']['image-crop-y'] = max($form_state['values']['image-crop-y'], 0);

  // save into imagecrop tables
  $module = !empty($form_state['values']['module']) ? '/' . $form_state['values']['module'] : '';
  $field = !empty($form_state['values']['field']) ? '/' . $form_state['values']['field'] : '';
  $node_type = !empty($form_state['values']['node_type']) ? '/' . $form_state['values']['node_type'] : '';
  $reference = !empty($form_state['values']['module']) && ($form_state['values']['module'] == 'node_images' || $form_state['values']['module'] == 'user') ? $form_state['values']['module'] : 'files';
  $scaling = isset($form_state['values']['scaling']) ? $form_state['values']['scaling'] : 'original';
  db_query("DELETE FROM {imagecrop} WHERE fid = %d AND presetname = '%s' AND reference = '%s'", $form_state['values']['fid'], $form_state['values']['presetname'], $reference);
  db_query("INSERT INTO {imagecrop} (fid, reference, xoffset, yoffset, width, height, scale, presetname) VALUES (%d, '%s', %d, %d, %d, %d, '%s', '%s')", $form_state['values']['fid'], $reference, $form_state['values']['image-crop-x'], $form_state['values']['image-crop-y'], $form_state['values']['image-crop-width'], $form_state['values']['image-crop-height'], $scaling, $form_state['values']['presetname']);
  if ($form_state['values']['op'] == t('Scale image')) {
    drupal_goto('imagecrop/docrop/' . $form_state['values']['fid'] . '/' . $form_state['values']['presetname'] . $module . $field . $node_type);
  }
  else {

    // delete imagecache preset, so newest file is generated.
    file_delete($form_state['values']['preset-destination']);
    if ($form_state['values']['preset-destination'] != $form_state['values']['temp-preset-destination']) {
      file_delete($form_state['values']['temp-preset-destination']);
    }
    drupal_goto('imagecrop/showcrop/' . $form_state['values']['fid'] . '/' . $form_state['values']['presetname'] . $module . $field . $node_type);
  }
}
Functions

Name	Description
imagecrop_docrop	Callback with javascript crop.
imagecrop_settings	Imagecrop settings page
imagecrop_showcrop	Show the cropped image.
imageoffsets_form	Callback to return offsets, height & width
imageoffsets_form_submit	Save the offset & size values
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