[project/imagecache.git] / imagecache_actions.inc

<?php
// $Id$

function imagecache_resize_form($action) {
  $form['width'] = array(
    '#type' => 'textfield',
    '#title' => t('Width'),
    '#default_value' => isset($action['width']) ? $action['width'] : '100%',
    '#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
  );
  $form['height'] = array(
    '#type' => 'textfield',
    '#title' => t('Height'),
    '#default_value' => isset($action['height']) ? $action['height'] : '100%',
    '#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
  );
  return $form;
}

function imagecache_resize_image(&$image, $data) {
  if (!imageapi_image_resize($image, $data['width'], $data['height'])) {
    watchdog('imagecache', 'imagecache_resize_image failed. image: %image, data: %data.', array('%path' => $image, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}

function theme_imagecache_resize($element) {
  $data = $element['#value'];
  return 'width: '. $data['width'] .', height: '. $data['height'];
}

/**
 * ImageCache Scale
 */
function imagecache_scale_form($data = array()) {
  $form = imagecache_resize_form($data);
  $form['upscale'] = array(
    '#type' => 'checkbox',
    '#default_value' => (isset($data['upscale'])) ? $data['upscale'] : 0,
    '#title' => t('Allow Upscaling'),
    '#description' => t('Let scale make images larger than their original size'),
  );
  return $form;
}

function theme_imagecache_scale($element) {
  $output = theme_imagecache_resize($element) .  ', upscale: ';
  $output .= ($element['#value']['upscale']) ? t('Yes') : t('No');
  return $output;
}

function imagecache_scale_image(&$image, $data) {
  // Set impossibly large values if the width and height aren't set.
  $data['width'] = $data['width'] ? $data['width'] : 9999999;
  $data['height'] = $data['height'] ? $data['height'] : 9999999;
  if (!imageapi_image_scale($image, $data['width'], $data['height'], $data['upscale'])) {
    watchdog('imagecache', 'imagecache_scale_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}


/**
 * ImageCache Scale and Crop
 */
function imagecache_scale_and_crop_form($data = array()) {
  return imagecache_resize_form($data);
}

function theme_imagecache_scale_and_crop($element) {
  return theme_imagecache_resize($element);
}


function imagecache_scale_and_crop_image(&$image, $data) {
  if (!imageapi_image_scale_and_crop($image, $data['width'], $data['height'])) {
    watchdog('imagecache', 'imagecache_scale_and_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}


/**
 * ImageCache Deprecated Scale.
 * This will be removed in imagecache 2.1
 */
function imagecache_deprecated_scale_form($data = array()) {
  $helptext = array();
  $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.');
  $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.');
  $description = '<ul><li>'. implode('</li><li>', $helptext) .'</li><ul>';

  $form['fit'] = array(
    '#type' => 'select',
    '#title' => t('Scale to fit'),
    '#options' => array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions')),
    '#default_value' => isset($data['fit']) ? $data['fit'] : NULL,
    '#weight' => 1,
    '#description' => $description,
  );
  $form['width'] = array(
    '#type' => 'textfield',
    '#title' => t('Width'),
    '#default_value' => isset($data['width']) ? $data['width'] : '',
    '#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
  );
  $form['height'] = array(
    '#type' => 'textfield',
    '#title' => t('Height'),
    '#default_value' => isset($data['height']) ? $data['height'] : '',
    '#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
  );
  return $form;
}

function theme_imagecache_deprecated_scale($element) {
  $data = $element['#value'];
  $options = array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions'));
  return 'width: '. $data['width'] .', height: '. $data['height'] .', fit: '. $options[$data['fit']];
}

function imagecache_deprecated_scale_image(&$image, $data) {
  if ($data['fit'] == 'outside' && $data['width'] && $data['height']) {
    $ratio = $image->info['width'] / $image->info['height'];
    $new_ratio = $data['width']/$data['height'];
    $data['width'] = $ratio > $new_ratio ? 0 : $data['width'];
    $data['height'] = $ratio < $new_ratio ? 0 : $data['height'];
  }
  // Set impossibly large values if the width and height aren't set.
  $data['width'] = $data['width'] ? $data['width'] : 9999999;
  $data['height'] = $data['height'] ? $data['height'] : 9999999;
  if (!imageapi_image_scale($image, $data['width'], $data['height'])) {
     watchdog('imagecache', 'imagecache_deprecated_scale failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}


/**
 * ImageCache Crop
 */
function imagecache_crop_form($data = array()) {
  $data += array(
    'width' => '',
    'height' => '',
    'xoffset' => '',
    'yoffset' => '',
  );
  $form['width'] = array(
    '#type' => 'textfield',
    '#title' => t('Width'),
    '#default_value' => $data['width'],
    '#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
  );
  $form['height'] = array(
    '#type' => 'textfield',
    '#title' => t('Height'),
    '#default_value' => $data['height'],
    '#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
  );
  $form['xoffset'] = array(
    '#type' => 'textfield',
    '#title' => t('X offset'),
    '#default_value' => $data['xoffset'],
    '#description' => t('Enter an offset in pixels or use a keyword: <em>left</em>, <em>center</em>, or <em>right</em>.'),
  );
  $form['yoffset'] = array(
    '#type' => 'textfield',
    '#title' => t('Y offset'),
    '#default_value' => $data['yoffset'],
    '#description' => t('Enter an offset in pixels or use a keyword: <em>top</em>, <em>center</em>, or <em>bottom</em>.'),
  );
  return $form;
}

function theme_imagecache_crop($element) {
  $data = $element['#value'];
  return 'width: '. $data['width'] .', height: '. $data['height'] .', xoffset: '. $data['xoffset'] .', yoffset: '. $data['yoffset'];
}

function imagecache_crop_image(&$image, $data) {
  if (!imageapi_image_crop($image, $data['xoffset'], $data['yoffset'], $data['width'], $data['height'])) {
      watchdog('imagecache', 'imagecache_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}


/**
 * ImageCache Desaturate
 */
function imagecache_desaturate_form($data = array()) {
  return array();
}

function theme_imagecache_desaturate($element) {
  return '';
}


function imagecache_desaturate_image(&$image, $data = array()) {
  if (!imageapi_image_desaturate($image)) {
    watchdog('imagecache', 'imagecache_desaturate failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}


/**
 * ImageCache Rotate
 */
function imagecache_rotate_form($data = array()) {
  $form['degrees'] = array(
    '#type' => 'textfield',
    '#default_value' => (isset($data['degrees'])) ? $data['degrees'] : 0,
    '#title' => t('Rotation angle'),
    '#description' => t('The number of degrees the image should be rotated. Positive numbers are clockwise, negative are counter-clockwise.'),
  );
  $form['random'] = array(
    '#type' => 'checkbox',
    '#default_value' => (isset($data['random'])) ? $data['random'] : 0,
    '#title' => t('Randomize'),
    '#description' => t('Randomize the rotation angle for each image. The angle specified above is used as a maximum.'),
  );
  $form['bgcolor'] = array(
    '#type' => 'textfield',
    '#default_value' => (isset($data['bgcolor'])) ? $data['bgcolor'] : '',
    '#title' => t('Background color'),
    '#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.'),
  );
  return $form;
}

function theme_imagecache_rotate($element) {
  $output = t('degrees:') .' '. $element['#value']['degrees'] .', ';
  $output .= t('randomize:') .' '. (($element['#value']['random']) ? t('Yes') : t('No')) .', ';
  $output .= t('background:') .' '. strlen(trim($element['#value']['bgcolor'])) ? $element['#value']['bgcolor'] : t('Transparent/white');
  return $output;
}

function imagecache_rotate_image(&$image, $data) {
  // Merge in default values.
  $data += array(
    'degrees' => '0',
    'random' => FALSE,
    'bgcolor' => '',
  );
 
  // Set sane default values.
  if (strlen(trim($data['bgcolor']))) {
    $data['bgcolor'] = hexdec(str_replace('#', '', $data['bgcolor']));
  }
  else {
    $data['bgcolor'] = NULL;
  }

  if ($data['random']) {
    $degrees = abs((float)$data['degrees']);
    $data['degrees'] = rand(-1 * $degrees, $degrees);
  }

  if (!imageapi_image_rotate($image, $data['degrees'], $data['bgcolor'])) {
    watchdog('imagecache', 'imagecache_rotate_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}

/**
 * ImageCache Sharpen
 */
function imagecache_sharpen_form($data) {
  $form['info'] = array(
    '#value' => t('<strong>NOTE:</strong> The sigma parameter below is currently <em>only</em> used when the Imagemagick toolkit is active.'),
  );
  $form['radius'] = array(
    '#type' => 'textfield',
    '#default_value' => (isset($data['radius'])) ? $data['radius'] : '0.5' ,
    '#title' => t('Radius'),
    '#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)'),
  );
  $form['sigma'] = array(
    '#type' => 'textfield',
    '#default_value' => (isset($data['sigma'])) ? $data['sigma'] : '0.5' ,
    '#title' => t('Sigma'),
    '#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)'),
  );
  $form['amount'] = array(
    '#type' => 'textfield',
    '#default_value' => (isset($data['amount'])) ? $data['amount'] : '100' ,
    '#title' => t('Amount'),
    '#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).'),
  );
  $form['threshold'] = array(
    '#type' => 'textfield',
    '#default_value' => (isset($data['threshold'])) ? $data['threshold'] : '0.05' ,
    '#title' => t('Threshold'),
    '#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).'),
  );
  return $form;
}

function theme_imagecache_sharpen($element) {
  $output = t('radius:') .' '. $element['#value']['radius'] .', ';
  $output .= t('sigma:') .' '. $element['#value']['sigma'] .', ';
  $output .= t('amount:') .' '. $element['#value']['amount'] .', ';
  $output .= t('threshold:') .' '. $element['#value']['threshold'] ;
  return $output;
}

function imagecache_sharpen_image(&$image, $data) {
  // Set sane default values.
  $data['radius'] = $data['radius'] ? $data['radius'] : "0.5";
  $data['sigma'] = $data['sigma'] ? $data['sigma'] : "0.5";
  $data['amount'] = $data['amount'] ? $data['amount'] : "100";
  $data['threshold'] = $data['threshold'] ? $data['threshold'] : "0.05";

  if (!imageapi_image_sharpen($image, $data['radius'], $data['sigma'], $data['amount'], $data['threshold'])) {
    watchdog('imagecache', 'imagecache_sharpen_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}
Commit	Line	Data
6cf0c855 DP	1	<?php
	2	// $Id$
	3
f563b784	4	function imagecache_resize_form($action) {
	5	$form['width'] = array(
	6	'#type' => 'textfield',
	7	'#title' => t('Width'),
	8	'#default_value' => isset($action['width']) ? $action['width'] : '100%',
	9	'#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
	10	);
	11	$form['height'] = array(
	12	'#type' => 'textfield',
	13	'#title' => t('Height'),
	14	'#default_value' => isset($action['height']) ? $action['height'] : '100%',
	15	'#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
	16	);
	17	return $form;
	18	}
	19
	20	function imagecache_resize_image(&$image, $data) {
	21	if (!imageapi_image_resize($image, $data['width'], $data['height'])) {
	22	watchdog('imagecache', 'imagecache_resize_image failed. image: %image, data: %data.', array('%path' => $image, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
	23	return FALSE;
	24	}
	25	return TRUE;
	26	}
	27
808d1f74	28	function theme_imagecache_resize($element) {
	29	$data = $element['#value'];
	30	return 'width: '. $data['width'] .', height: '. $data['height'];
	31	}
	32
1508b2bc	33	/**
e1bc2b25	34	* ImageCache Scale
1508b2bc	35	*/
431c94d0	36	function imagecache_scale_form($data = array()) {
9ba6a64d DP	37	$form = imagecache_resize_form($data);
	38	$form['upscale'] = array(
	39	'#type' => 'checkbox',
	40	'#default_value' => (isset($data['upscale'])) ? $data['upscale'] : 0,
	41	'#title' => t('Allow Upscaling'),
	42	'#description' => t('Let scale make images larger than their original size'),
	43	);
	44	return $form;
1508b2bc DP	45	}
1508b2bc DP	46
42cc9535	47	function theme_imagecache_scale($element) {
70ad0a90	48	$output = theme_imagecache_resize($element) . ', upscale: ';
159f43cf DP	49	$output .= ($element['#value']['upscale']) ? t('Yes') : t('No');
159f43cf DP	50	return $output;
42cc9535 DP	51	}
42cc9535 DP	52
f490ff7d	53	function imagecache_scale_image(&$image, $data) {
6cf0c855 DP	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'] ? $data['height'] : 9999999;
f490ff7d	57	if (!imageapi_image_scale($image, $data['width'], $data['height'], $data['upscale'])) {
11641bc5	58	watchdog('imagecache', 'imagecache_scale_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	59	return FALSE;
6cf0c855	60	}
11641bc5	61	return TRUE;
6cf0c855 DP	62	}
6cf0c855 DP	63
1508b2bc DP	64
1508b2bc DP	65	/**
e1bc2b25	66	* ImageCache Scale and Crop
1508b2bc	67	*/
431c94d0	68	function imagecache_scale_and_crop_form($data = array()) {
1508b2bc DP	69	return imagecache_resize_form($data);
	70	}
	71
42cc9535 DP	72	function theme_imagecache_scale_and_crop($element) {
	73	return theme_imagecache_resize($element);
	74	}
	75
	76
f490ff7d	77	function imagecache_scale_and_crop_image(&$image, $data) {
f490ff7d	78	if (!imageapi_image_scale_and_crop($image, $data['width'], $data['height'])) {
11641bc5	79	watchdog('imagecache', 'imagecache_scale_and_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	80	return FALSE;
1508b2bc	81	}
11641bc5	82	return TRUE;
1508b2bc DP	83	}
	84
	85
	86
	87	/**
e1bc2b25	88	* ImageCache Deprecated Scale.
1508b2bc DP	89	* This will be removed in imagecache 2.1
1508b2bc DP	90	*/
431c94d0	91	function imagecache_deprecated_scale_form($data = array()) {
6cf0c855 DP	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	$form['fit'] = array(
	98	'#type' => 'select',
	99	'#title' => t('Scale to fit'),
	100	'#options' => array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions')),
b85315ac	101	'#default_value' => isset($data['fit']) ? $data['fit'] : NULL,
6cf0c855 DP	102	'#weight' => 1,
	103	'#description' => $description,
	104	);
	105	$form['width'] = array(
	106	'#type' => 'textfield',
	107	'#title' => t('Width'),
b85315ac	108	'#default_value' => isset($data['width']) ? $data['width'] : '',
6cf0c855 DP	109	'#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
	110	);
	111	$form['height'] = array(
	112	'#type' => 'textfield',
	113	'#title' => t('Height'),
b85315ac	114	'#default_value' => isset($data['height']) ? $data['height'] : '',
6cf0c855 DP	115	'#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
	116	);
	117	return $form;
	118	}
	119
42cc9535 DP	120	function theme_imagecache_deprecated_scale($element) {
	121	$data = $element['#value'];
	122	$options = array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions'));
	123	return 'width: '. $data['width'] .', height: '. $data['height'] .', fit: '. $options[$data['fit']];
	124	}
	125
f490ff7d	126	function imagecache_deprecated_scale_image(&$image, $data) {
1508b2bc	127	if ($data['fit'] == 'outside' && $data['width'] && $data['height']) {
daf33abf	128	$ratio = $image->info['width'] / $image->info['height'];
1508b2bc DP	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'];
6cf0c855	132	}
1508b2bc DP	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'] ? $data['height'] : 9999999;
f490ff7d	136	if (!imageapi_image_scale($image, $data['width'], $data['height'])) {
11641bc5	137	watchdog('imagecache', 'imagecache_deprecated_scale failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	138	return FALSE;
1508b2bc	139	}
11641bc5	140	return TRUE;
6cf0c855 DP	141	}
6cf0c855 DP	142
1508b2bc DP	143
	144
	145	/**
e1bc2b25	146	* ImageCache Crop
1508b2bc	147	*/
431c94d0	148	function imagecache_crop_form($data = array()) {
8c361d7c DP	149	$data += array(
	150	'width' => '',
	151	'height' => '',
	152	'xoffset' => '',
	153	'yoffset' => '',
	154	);
6cf0c855 DP	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 $form;
	180	}
	181
42cc9535 DP	182	function theme_imagecache_crop($element) {
	183	$data = $element['#value'];
	184	return 'width: '. $data['width'] .', height: '. $data['height'] .', xoffset: '. $data['xoffset'] .', yoffset: '. $data['yoffset'];
	185	}
	186
f490ff7d DP	187	function imagecache_crop_image(&$image, $data) {
f490ff7d DP	188	if (!imageapi_image_crop($image, $data['xoffset'], $data['yoffset'], $data['width'], $data['height'])) {
11641bc5	189	watchdog('imagecache', 'imagecache_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	190	return FALSE;
1508b2bc	191	}
11641bc5	192	return TRUE;
1508b2bc DP	193	}
	194
	195
	196	/**
e1bc2b25	197	* ImageCache Desaturate
1508b2bc	198	*/
431c94d0	199	function imagecache_desaturate_form($data = array()) {
1508b2bc DP	200	return array();
	201	}
	202
42cc9535 DP	203	function theme_imagecache_desaturate($element) {
	204	return '';
	205	}
	206
	207
f490ff7d DP	208	function imagecache_desaturate_image(&$image, $data = array()) {
f490ff7d DP	209	if (!imageapi_image_desaturate($image)) {
11641bc5	210	watchdog('imagecache', 'imagecache_desaturate failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	211	return FALSE;
1508b2bc	212	}
11641bc5	213	return TRUE;
6cf0c855	214	}
19fefb49 DP	215
	216
	217
	218	/**
e1bc2b25	219	* ImageCache Rotate
19fefb49	220	*/
431c94d0	221	function imagecache_rotate_form($data = array()) {
19fefb49 DP	222	$form['degrees'] = array(
	223	'#type' => 'textfield',
	224	'#default_value' => (isset($data['degrees'])) ? $data['degrees'] : 0,
	225	'#title' => t('Rotation angle'),
	226	'#description' => t('The number of degrees the image should be rotated. Positive numbers are clockwise, negative are counter-clockwise.'),
	227	);
	228	$form['random'] = array(
	229	'#type' => 'checkbox',
	230	'#default_value' => (isset($data['random'])) ? $data['random'] : 0,
	231	'#title' => t('Randomize'),
	232	'#description' => t('Randomize the rotation angle for each image. The angle specified above is used as a maximum.'),
	233	);
	234	$form['bgcolor'] = array(
	235	'#type' => 'textfield',
11e599d8	236	'#default_value' => (isset($data['bgcolor'])) ? $data['bgcolor'] : '',
19fefb49	237	'#title' => t('Background color'),
11e599d8	238	'#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.'),
19fefb49 DP	239	);
	240	return $form;
	241	}
	242
	243	function theme_imagecache_rotate($element) {
a23a1b48	244	$output = t('degrees:') .' '. $element['#value']['degrees'] .', ';
a23a1b48	245	$output .= t('randomize:') .' '. (($element['#value']['random']) ? t('Yes') : t('No')) .', ';
11e599d8	246	$output .= t('background:') .' '. strlen(trim($element['#value']['bgcolor'])) ? $element['#value']['bgcolor'] : t('Transparent/white');
19fefb49 DP	247	return $output;
	248	}
	249
	250	function imagecache_rotate_image(&$image, $data) {
11e599d8	251	// Merge in default values.
	252	$data += array(
	253	'degrees' => '0',
	254	'random' => FALSE,
	255	'bgcolor' => '',
	256	);
	257
19fefb49	258	// Set sane default values.
11e599d8	259	if (strlen(trim($data['bgcolor']))) {
	260	$data['bgcolor'] = hexdec(str_replace('#', '', $data['bgcolor']));
	261	}
	262	else {
	263	$data['bgcolor'] = NULL;
	264	}
19fefb49	265
11e599d8	266	if ($data['random']) {
65312e36 DP	267	$degrees = abs((float)$data['degrees']);
65312e36 DP	268	$data['degrees'] = rand(-1 * $degrees, $degrees);
19fefb49 DP	269	}
	270
	271	if (!imageapi_image_rotate($image, $data['degrees'], $data['bgcolor'])) {
11641bc5	272	watchdog('imagecache', 'imagecache_rotate_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	273	return FALSE;
19fefb49	274	}
11641bc5	275	return TRUE;
19fefb49	276	}
2684c3e3 DP	277
2684c3e3 DP	278	/**
e1bc2b25	279	* ImageCache Sharpen
2684c3e3 DP	280	*/
	281	function imagecache_sharpen_form($data) {
	282	$form['info'] = array(
	283	'#value' => t('<strong>NOTE:</strong> The sigma parameter below is currently <em>only</em> used when the Imagemagick toolkit is active.'),
	284	);
	285	$form['radius'] = array(
	286	'#type' => 'textfield',
	287	'#default_value' => (isset($data['radius'])) ? $data['radius'] : '0.5' ,
	288	'#title' => t('Radius'),
	289	'#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)'),
	290	);
	291	$form['sigma'] = array(
	292	'#type' => 'textfield',
	293	'#default_value' => (isset($data['sigma'])) ? $data['sigma'] : '0.5' ,
	294	'#title' => t('Sigma'),
	295	'#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)'),
	296	);
	297	$form['amount'] = array(
	298	'#type' => 'textfield',
	299	'#default_value' => (isset($data['amount'])) ? $data['amount'] : '100' ,
	300	'#title' => t('Amount'),
	301	'#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).'),
	302	);
	303	$form['threshold'] = array(
	304	'#type' => 'textfield',
	305	'#default_value' => (isset($data['threshold'])) ? $data['threshold'] : '0.05' ,
	306	'#title' => t('Threshold'),
	307	'#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).'),
	308	);
	309	return $form;
	310	}
	311
	312	function theme_imagecache_sharpen($element) {
a23a1b48	313	$output = t('radius:') .' '. $element['#value']['radius'] .', ';
	314	$output .= t('sigma:') .' '. $element['#value']['sigma'] .', ';
	315	$output .= t('amount:') .' '. $element['#value']['amount'] .', ';
	316	$output .= t('threshold:') .' '. $element['#value']['threshold'] ;
2684c3e3 DP	317	return $output;
	318	}
	319
	320	function imagecache_sharpen_image(&$image, $data) {
	321	// Set sane default values.
	322	$data['radius'] = $data['radius'] ? $data['radius'] : "0.5";
	323	$data['sigma'] = $data['sigma'] ? $data['sigma'] : "0.5";
	324	$data['amount'] = $data['amount'] ? $data['amount'] : "100";
	325	$data['threshold'] = $data['threshold'] ? $data['threshold'] : "0.05";
	326
	327	if (!imageapi_image_sharpen($image, $data['radius'], $data['sigma'], $data['amount'], $data['threshold'])) {
11641bc5	328	watchdog('imagecache', 'imagecache_sharpen_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
11641bc5	329	return FALSE;
2684c3e3	330	}
11641bc5	331	return TRUE;
e1bc2b25	332	}