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   1  <?php
   2  
   3  function imagecache_resize_form($action) {
   4    $form['width'] = array(
   5      '#type' => 'textfield',
   6      '#title' => t('Width'),
   7      '#default_value' => isset($action['width']) ? $action['width'] : '100%',
   8      '#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
   9    );
  10    $form['height'] = array(
  11      '#type' => 'textfield',
  12      '#title' => t('Height'),
  13      '#default_value' => isset($action['height']) ? $action['height'] : '100%',
  14      '#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
  15    );
  16    return $form;
  17  }
  18  
  19  function imagecache_resize_image(&$image, $data) {
  20    if (!imageapi_image_resize($image, $data['width'], $data['height'])) {
  21      watchdog('imagecache', 'imagecache_resize_image failed. image: %image, data: %data.', array('%path' => $image, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
  22      return FALSE;
  23    }
  24    return TRUE;
  25  }
  26  
  27  function theme_imagecache_resize($element) {
  28    $data = $element['#value'];
  29    if ($data['width'] && $data['height']) {
  30      return check_plain($data['width']) . 'x' . check_plain($data['height']);
  31    }
  32    return ($data['width']) ? t('width @width', array('@width' => $data['width'])) : t('height @height', array('@height' => $data['height']));
  33  }
  34  
  35  /**
  36   * ImageCache Scale
  37   */
  38  function imagecache_scale_form($data = array()) {
  39    $form = imagecache_resize_form($data);
  40    $form['upscale'] = array(
  41      '#type' => 'checkbox',
  42      '#default_value' => (isset($data['upscale'])) ? $data['upscale'] : 0,
  43      '#title' => t('Allow Upscaling'),
  44      '#description' => t('Let scale make images larger than their original size'),
  45    );
  46    return $form;
  47  }
  48  
  49  function theme_imagecache_scale($element) {
  50    return theme_imagecache_resize($element) . ' ' . ($element['#value']['upscale'] ? '(' . t('upscaling allowed') . ')' : '');
  51  }
  52  
  53  function imagecache_scale_image(&$image, $data) {
  54    // Set impossibly large values if the width and height aren't set.
  55    $data['width'] = $data['width'] ? $data['width'] : 9999999;
  56    $data['height'] = $data['height'] ? $data['height'] : 9999999;
  57    if (!imageapi_image_scale($image, $data['width'], $data['height'], $data['upscale'])) {
  58      watchdog('imagecache', 'imagecache_scale_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
  59      return FALSE;
  60    }
  61    return TRUE;
  62  }
  63  
  64  
  65  /**
  66   * ImageCache Scale and Crop
  67   */
  68  function imagecache_scale_and_crop_form($data = array()) {
  69    return imagecache_resize_form($data);
  70  }
  71  
  72  function theme_imagecache_scale_and_crop($element) {
  73    return theme_imagecache_resize($element);
  74  }
  75  
  76  
  77  function imagecache_scale_and_crop_image(&$image, $data) {
  78    if (!imageapi_image_scale_and_crop($image, $data['width'], $data['height'])) {
  79      watchdog('imagecache', 'imagecache_scale_and_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
  80      return FALSE;
  81    }
  82    return TRUE;
  83  }
  84  
  85  
  86  
  87  /**
  88   * ImageCache Deprecated Scale.
  89   * This will be removed in imagecache 2.1
  90   */
  91  function imagecache_deprecated_scale_form($data = array()) {
  92    $helptext = array();
  93    $helptext['inside'] = t('<strong>Inside dimensions</strong>: Final dimensions will be less than or equal to the entered width and height. Useful for ensuring a maximum height and/or width.');
  94    $helptext['outside'] = t('<strong>Outside dimensions</strong>: Final dimensions will be greater than or equal to the entered width and height. Ideal for cropping the result to a square.');
  95    $description = '<ul><li>'. implode('</li><li>', $helptext) .'</li><ul>';
  96  
  97    $form['fit'] = array(
  98      '#type' => 'select',
  99      '#title' => t('Scale to fit'),
 100      '#options' => array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions')),
 101      '#default_value' => isset($data['fit']) ? $data['fit'] : NULL,
 102      '#weight' => 1,
 103      '#description' => $description,
 104    );
 105    $form['width'] = array(
 106      '#type' => 'textfield',
 107      '#title' => t('Width'),
 108      '#default_value' => isset($data['width']) ? $data['width'] : '',
 109      '#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
 110    );
 111    $form['height'] = array(
 112      '#type' => 'textfield',
 113      '#title' => t('Height'),
 114      '#default_value' => isset($data['height']) ? $data['height'] : '',
 115      '#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
 116    );
 117    return $form;
 118  }
 119  
 120  function theme_imagecache_deprecated_scale($element) {
 121    $data = $element['#value'];
 122    $fits = array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions'));
 123    return t('width: @width, height: @height, fit: @fit', array('@width' => $data['width'], '@height' => $data['height'], '@fit' => $fits[$data['fit']]));
 124  }
 125  
 126  function imagecache_deprecated_scale_image(&$image, $data) {
 127    if ($data['fit'] == 'outside' && $data['width'] && $data['height']) {
 128      $ratio = $image->info['width'] / $image->info['height'];
 129      $new_ratio = $data['width']/$data['height'];
 130      $data['width'] = $ratio > $new_ratio ? 0 : $data['width'];
 131      $data['height'] = $ratio < $new_ratio ? 0 : $data['height'];
 132    }
 133    // Set impossibly large values if the width and height aren't set.
 134    $data['width'] = $data['width'] ? $data['width'] : 9999999;
 135    $data['height'] = $data['height'] ? $data['height'] : 9999999;
 136    if (!imageapi_image_scale($image, $data['width'], $data['height'])) {
 137       watchdog('imagecache', 'imagecache_deprecated_scale failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
 138      return FALSE;
 139    }
 140    return TRUE;
 141  }
 142  
 143  
 144  
 145  /**
 146   * ImageCache Crop
 147   */
 148  function imagecache_crop_form($data = array()) {
 149    $data += array(
 150      'width' => '',
 151      'height' => '',
 152      'xoffset' => '',
 153      'yoffset' => '',
 154    );
 155    $form['width'] = array(
 156      '#type' => 'textfield',
 157      '#title' => t('Width'),
 158      '#default_value' => $data['width'],
 159      '#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
 160    );
 161    $form['height'] = array(
 162      '#type' => 'textfield',
 163      '#title' => t('Height'),
 164      '#default_value' => $data['height'],
 165      '#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
 166    );
 167    $form['xoffset'] = array(
 168      '#type' => 'textfield',
 169      '#title' => t('X offset'),
 170      '#default_value' => $data['xoffset'],
 171      '#description' => t('Enter an offset in pixels or use a keyword: <em>left</em>, <em>center</em>, or <em>right</em>.'),
 172    );
 173    $form['yoffset'] = array(
 174      '#type' => 'textfield',
 175      '#title' => t('Y offset'),
 176      '#default_value' => $data['yoffset'],
 177      '#description' => t('Enter an offset in pixels or use a keyword: <em>top</em>, <em>center</em>, or <em>bottom</em>.'),
 178    );
 179    return $form;
 180  }
 181  
 182  function theme_imagecache_crop($element) {
 183    $data = $element['#value'];
 184    return t('width: @width, height: @height, xoffset: @xoffset, yoffset: @yoffset', array(
 185      '@width' => $data['width'],
 186      '@height' => $data['height'],
 187      '@xoffset' => $data['xoffset'],
 188      '@yoffset' => $data['yoffset'],
 189    ));
 190  }
 191  
 192  function imagecache_crop_image(&$image, $data) {
 193    if (!imageapi_image_crop($image, $data['xoffset'], $data['yoffset'], $data['width'], $data['height'])) {
 194        watchdog('imagecache', 'imagecache_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
 195      return FALSE;
 196    }
 197    return TRUE;
 198  }
 199  
 200  
 201  /**
 202   * ImageCache Desaturate
 203   */
 204  function imagecache_desaturate_form($data = array()) {
 205    return array();
 206  }
 207  
 208  function theme_imagecache_desaturate($element) {
 209    return '';
 210  }
 211  
 212  
 213  function imagecache_desaturate_image(&$image, $data = array()) {
 214    if (!imageapi_image_desaturate($image)) {
 215      watchdog('imagecache', 'imagecache_desaturate failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
 216      return FALSE;
 217    }
 218    return TRUE;
 219  }
 220  
 221  
 222  
 223  /**
 224   * ImageCache Rotate
 225   */
 226  function imagecache_rotate_form($data = array()) {
 227    $form['degrees'] = array(
 228      '#type' => 'textfield',
 229      '#default_value' => (isset($data['degrees'])) ? $data['degrees'] : 0,
 230      '#title' => t('Rotation angle'),
 231      '#description' => t('The number of degrees the image should be rotated. Positive numbers are clockwise, negative are counter-clockwise.'),
 232    );
 233    $form['random'] = array(
 234      '#type' => 'checkbox',
 235      '#default_value' => (isset($data['random'])) ? $data['random'] : 0,
 236      '#title' => t('Randomize'),
 237      '#description' => t('Randomize the rotation angle for each image. The angle specified above is used as a maximum.'),
 238    );
 239    $form['bgcolor'] = array(
 240      '#type' => 'textfield',
 241      '#default_value' => (isset($data['bgcolor'])) ? $data['bgcolor'] : '',
 242      '#title' => t('Background color'),
 243      '#description' => t('The background color to use for exposed areas of the image. Use web-style hex colors (#FFFFFF for white, #000000 for black). An empty value will cause images that support transparency to have transparent backgrounds, otherwise it will be white.'),
 244    );
 245    return $form;
 246  }
 247  
 248  function theme_imagecache_rotate($element) {
 249    $data = $element['#value'];
 250    if ($data['random']) {
 251      return t('random between -@degrees&deg and @degrees&deg', array('@degrees' => $data['degrees']));
 252    }
 253    return t('@degrees&deg', array('@degrees' => $data['degrees']));
 254  }
 255  
 256  function imagecache_rotate_image(&$image, $data) {
 257    // Merge in default values.
 258    $data += array(
 259      'degrees' => '0',
 260      'random' => FALSE,
 261      'bgcolor' => '',
 262    );
 263  
 264    // Set sane default values.
 265    if (strlen(trim($data['bgcolor']))) {
 266      $data['bgcolor'] = hexdec(str_replace('#', '', $data['bgcolor']));
 267    }
 268    else {
 269      $data['bgcolor'] = NULL;
 270    }
 271  
 272    if ($data['random']) {
 273      $degrees = abs((float)$data['degrees']);
 274      $data['degrees'] = rand(-1 * $degrees, $degrees);
 275    }
 276  
 277    if (!imageapi_image_rotate($image, $data['degrees'], $data['bgcolor'])) {
 278      watchdog('imagecache', 'imagecache_rotate_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
 279      return FALSE;
 280    }
 281    return TRUE;
 282  }
 283  
 284  /**
 285   * ImageCache Sharpen
 286   */
 287  function imagecache_sharpen_form($data) {
 288    $form['info'] = array(
 289      '#value' => t('<strong>NOTE:</strong> The sigma parameter below is currently <em>only</em> used when the Imagemagick toolkit is active.'),
 290    );
 291    $form['radius'] = array(
 292      '#type' => 'textfield',
 293      '#default_value' => (isset($data['radius'])) ? $data['radius'] : '0.5' ,
 294      '#title' => t('Radius'),
 295      '#description' => t('The radius of the gaussian, in pixels, not counting the center pixel. If you\'re using Imagemagick, you can set this to 0 to let Imagemagick select a suitable radius. Typically 0.5 to 1 for screen resolutions. (default 0.5)'),
 296    );
 297    $form['sigma'] = array(
 298      '#type' => 'textfield',
 299      '#default_value' => (isset($data['sigma'])) ? $data['sigma'] : '0.5' ,
 300      '#title' => t('Sigma'),
 301      '#description' => t('The standard deviation of the gaussian, in pixels. General rule of thumb: if radius < 1 then sigma = radius, else sigma = sqrt(radius). (default 0.5)'),
 302    );
 303    $form['amount'] = array(
 304      '#type' => 'textfield',
 305      '#default_value' => (isset($data['amount'])) ? $data['amount'] : '100' ,
 306      '#title' => t('Amount'),
 307      '#description' => t('The percentage of the difference between the original and the blur image that is added back into the original. Typically 50 to 200. (default 100).'),
 308    );
 309    $form['threshold'] = array(
 310      '#type' => 'textfield',
 311      '#default_value' => (isset($data['threshold'])) ? $data['threshold'] : '0.05' ,
 312      '#title' => t('Threshold'),
 313      '#description' => t('The threshold, as a fraction of max RGB levels, needed to apply the difference amount.  Typically 0 to 0.2. (default 0.05).'),
 314    );
 315    return $form;
 316  }
 317  
 318  function theme_imagecache_sharpen($element) {
 319    $data = $element['#value'];
 320    return t('radius: @radius, sigma: @sigma, amount: @amount, threshold: @threshold', array(
 321      '@radius' => $data['radius'],
 322      '@sigma' => $data['sigma'],
 323      '@amount' => $data['amount'],
 324      '@threshold' => $data['threshold'],
 325    ));
 326  }
 327  
 328  function imagecache_sharpen_image(&$image, $data) {
 329    // Set sane default values.
 330    $data['radius'] = $data['radius'] ? $data['radius'] : "0.5";
 331    $data['sigma'] = $data['sigma'] ? $data['sigma'] : "0.5";
 332    $data['amount'] = $data['amount'] ? $data['amount'] : "100";
 333    $data['threshold'] = $data['threshold'] ? $data['threshold'] : "0.05";
 334  
 335    if (!imageapi_image_sharpen($image, $data['radius'], $data['sigma'], $data['amount'], $data['threshold'])) {
 336      watchdog('imagecache', 'imagecache_sharpen_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
 337      return FALSE;
 338    }
 339    return TRUE;
 340  }