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<?php
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// $Id: imagecache_actions.inc,v 1.23 2009/05/03 14:38:49 drewish Exp $
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function imagecache_resize_form($action) {
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$form['width'] = array(
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'#type' => 'textfield',
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'#title' => t('Width'),
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'#default_value' => isset($action['width']) ? $action['width'] : '100%',
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'#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
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);
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$form['height'] = array(
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'#type' => 'textfield',
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'#title' => t('Height'),
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'#default_value' => isset($action['height']) ? $action['height'] : '100%',
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'#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
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);
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return $form;
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}
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function imagecache_resize_image(&$image, $data) {
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if (!imageapi_image_resize($image, $data['width'], $data['height'])) {
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watchdog('imagecache', 'imagecache_resize_image failed. image: %image, data: %data.', array('%path' => $image, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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function theme_imagecache_resize($element) {
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$data = $element['#value'];
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return 'width: '. $data['width'] .', height: '. $data['height'];
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}
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/**
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* ImageCache Scale
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*/
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function imagecache_scale_form($data = array()) {
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$form = imagecache_resize_form($data);
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$form['upscale'] = array(
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'#type' => 'checkbox',
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'#default_value' => (isset($data['upscale'])) ? $data['upscale'] : 0,
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'#title' => t('Allow Upscaling'),
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'#description' => t('Let scale make images larger than their original size'),
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);
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return $form;
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}
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function theme_imagecache_scale($element) {
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$output = theme_imagecache_resize($element) . ', upscale: ';
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$output .= ($element['#value']['upscale']) ? t('Yes') : t('No');
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return $output;
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}
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function imagecache_scale_image(&$image, $data) {
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// Set impossibly large values if the width and height aren't set.
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$data['width'] = $data['width'] ? $data['width'] : 9999999;
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$data['height'] = $data['height'] ? $data['height'] : 9999999;
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if (!imageapi_image_scale($image, $data['width'], $data['height'], $data['upscale'])) {
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watchdog('imagecache', 'imagecache_scale_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* ImageCache Scale and Crop
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*/
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function imagecache_scale_and_crop_form($data = array()) {
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return imagecache_resize_form($data);
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}
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function theme_imagecache_scale_and_crop($element) {
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return theme_imagecache_resize($element);
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}
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function imagecache_scale_and_crop_image(&$image, $data) {
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if (!imageapi_image_scale_and_crop($image, $data['width'], $data['height'])) {
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watchdog('imagecache', 'imagecache_scale_and_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* ImageCache Deprecated Scale.
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* This will be removed in imagecache 2.1
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*/
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function imagecache_deprecated_scale_form($data = array()) {
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$helptext = array();
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$helptext['inside'] = t('<strong>Inside dimensions</strong>: Final dimensions will be less than or equal to the entered width and height. Useful for ensuring a maximum height and/or width.');
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$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.');
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$description = '<ul><li>'. implode('</li><li>', $helptext) .'</li><ul>';
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$form['fit'] = array(
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'#type' => 'select',
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'#title' => t('Scale to fit'),
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'#options' => array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions')),
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'#default_value' => isset($data['fit']) ? $data['fit'] : NULL,
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'#weight' => 1,
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'#description' => $description,
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);
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$form['width'] = array(
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'#type' => 'textfield',
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'#title' => t('Width'),
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'#default_value' => isset($data['width']) ? $data['width'] : '',
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'#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
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);
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$form['height'] = array(
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'#type' => 'textfield',
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'#title' => t('Height'),
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'#default_value' => isset($data['height']) ? $data['height'] : '',
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'#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
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);
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return $form;
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}
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function theme_imagecache_deprecated_scale($element) {
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$data = $element['#value'];
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$options = array('inside' => t('Inside dimensions'), 'outside' => t('Outside dimensions'));
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return 'width: '. $data['width'] .', height: '. $data['height'] .', fit: '. $options[$data['fit']];
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}
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function imagecache_deprecated_scale_image(&$image, $data) {
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if ($data['fit'] == 'outside' && $data['width'] && $data['height']) {
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$ratio = $image->info['width'] / $image->info['height'];
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$new_ratio = $data['width']/$data['height'];
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$data['width'] = $ratio > $new_ratio ? 0 : $data['width'];
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$data['height'] = $ratio < $new_ratio ? 0 : $data['height'];
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}
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// Set impossibly large values if the width and height aren't set.
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$data['width'] = $data['width'] ? $data['width'] : 9999999;
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$data['height'] = $data['height'] ? $data['height'] : 9999999;
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if (!imageapi_image_scale($image, $data['width'], $data['height'])) {
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watchdog('imagecache', 'imagecache_deprecated_scale failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* ImageCache Crop
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*/
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function imagecache_crop_form($data = array()) {
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$data += array(
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'width' => '',
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'height' => '',
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'xoffset' => '',
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'yoffset' => '',
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);
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$form['width'] = array(
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'#type' => 'textfield',
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'#title' => t('Width'),
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'#default_value' => $data['width'],
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'#description' => t('Enter a width in pixels or as a percentage. i.e. 500 or 80%.'),
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);
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$form['height'] = array(
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'#type' => 'textfield',
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'#title' => t('Height'),
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'#default_value' => $data['height'],
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'#description' => t('Enter a height in pixels or as a percentage. i.e. 500 or 80%.'),
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);
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$form['xoffset'] = array(
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'#type' => 'textfield',
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'#title' => t('X offset'),
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'#default_value' => $data['xoffset'],
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'#description' => t('Enter an offset in pixels or use a keyword: <em>left</em>, <em>center</em>, or <em>right</em>.'),
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);
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$form['yoffset'] = array(
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'#type' => 'textfield',
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'#title' => t('Y offset'),
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'#default_value' => $data['yoffset'],
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'#description' => t('Enter an offset in pixels or use a keyword: <em>top</em>, <em>center</em>, or <em>bottom</em>.'),
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);
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return $form;
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}
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function theme_imagecache_crop($element) {
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$data = $element['#value'];
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return 'width: '. $data['width'] .', height: '. $data['height'] .', xoffset: '. $data['xoffset'] .', yoffset: '. $data['yoffset'];
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}
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function imagecache_crop_image(&$image, $data) {
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if (!imageapi_image_crop($image, $data['xoffset'], $data['yoffset'], $data['width'], $data['height'])) {
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watchdog('imagecache', 'imagecache_crop failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* ImageCache Desaturate
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*/
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function imagecache_desaturate_form($data = array()) {
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return array();
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}
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function theme_imagecache_desaturate($element) {
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return '';
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}
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function imagecache_desaturate_image(&$image, $data = array()) {
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if (!imageapi_image_desaturate($image)) {
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watchdog('imagecache', 'imagecache_desaturate failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* ImageCache Rotate
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*/
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function imagecache_rotate_form($data = array()) {
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$form['degrees'] = array(
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'#type' => 'textfield',
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'#default_value' => (isset($data['degrees'])) ? $data['degrees'] : 0,
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'#title' => t('Rotation angle'),
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'#description' => t('The number of degrees the image should be rotated. Positive numbers are clockwise, negative are counter-clockwise.'),
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);
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$form['random'] = array(
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'#type' => 'checkbox',
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'#default_value' => (isset($data['random'])) ? $data['random'] : 0,
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'#title' => t('Randomize'),
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'#description' => t('Randomize the rotation angle for each image. The angle specified above is used as a maximum.'),
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);
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$form['bgcolor'] = array(
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'#type' => 'textfield',
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'#default_value' => (isset($data['bgcolor'])) ? $data['bgcolor'] : '',
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'#title' => t('Background color'),
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'#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.'),
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);
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return $form;
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}
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function theme_imagecache_rotate($element) {
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$output = t('degrees:') .' '. $element['#value']['degrees'] .', ';
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$output .= t('randomize:') .' '. (($element['#value']['random']) ? t('Yes') : t('No')) .', ';
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$output .= t('background:') .' '. strlen(trim($element['#value']['bgcolor'])) ? $element['#value']['bgcolor'] : t('Transparent/white');
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return $output;
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}
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function imagecache_rotate_image(&$image, $data) {
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// Merge in default values.
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$data += array(
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'degrees' => '0',
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'random' => FALSE,
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'bgcolor' => '',
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);
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// Set sane default values.
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if (strlen(trim($data['bgcolor']))) {
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$data['bgcolor'] = hexdec(str_replace('#', '', $data['bgcolor']));
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}
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else {
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$data['bgcolor'] = NULL;
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}
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if ($data['random']) {
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$degrees = abs((float)$data['degrees']);
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$data['degrees'] = rand(-1 * $degrees, $degrees);
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}
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if (!imageapi_image_rotate($image, $data['degrees'], $data['bgcolor'])) {
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watchdog('imagecache', 'imagecache_rotate_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* ImageCache Sharpen
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*/
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function imagecache_sharpen_form($data) {
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$form['info'] = array(
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'#value' => t('<strong>NOTE:</strong> The sigma parameter below is currently <em>only</em> used when the Imagemagick toolkit is active.'),
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);
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$form['radius'] = array(
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'#type' => 'textfield',
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'#default_value' => (isset($data['radius'])) ? $data['radius'] : '0.5' ,
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'#title' => t('Radius'),
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'#description' => t('The radius of the gaussian, in pixels, not counting the center pixel. If you\'re using Imagemagick, you can set this to 0 to let Imagemagick select a suitable radius. Typically 0.5 to 1 for screen resolutions. (default 0.5)'),
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);
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$form['sigma'] = array(
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'#type' => 'textfield',
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'#default_value' => (isset($data['sigma'])) ? $data['sigma'] : '0.5' ,
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'#title' => t('Sigma'),
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'#description' => t('The standard deviation of the gaussian, in pixels. General rule of thumb: if radius < 1 then sigma = radius, else sigma = sqrt(radius). (default 0.5)'),
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);
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$form['amount'] = array(
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'#type' => 'textfield',
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'#default_value' => (isset($data['amount'])) ? $data['amount'] : '100' ,
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'#title' => t('Amount'),
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'#description' => t('The percentage of the difference between the original and the blur image that is added back into the original. Typically 50 to 200. (default 100).'),
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);
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$form['threshold'] = array(
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'#type' => 'textfield',
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'#default_value' => (isset($data['threshold'])) ? $data['threshold'] : '0.05' ,
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'#title' => t('Threshold'),
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'#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).'),
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);
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return $form;
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}
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function theme_imagecache_sharpen($element) {
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$output = t('radius:') .' '. $element['#value']['radius'] .', ';
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$output .= t('sigma:') .' '. $element['#value']['sigma'] .', ';
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$output .= t('amount:') .' '. $element['#value']['amount'] .', ';
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$output .= t('threshold:') .' '. $element['#value']['threshold'] ;
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return $output;
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}
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function imagecache_sharpen_image(&$image, $data) {
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// Set sane default values.
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$data['radius'] = $data['radius'] ? $data['radius'] : "0.5";
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$data['sigma'] = $data['sigma'] ? $data['sigma'] : "0.5";
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$data['amount'] = $data['amount'] ? $data['amount'] : "100";
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$data['threshold'] = $data['threshold'] ? $data['threshold'] : "0.05";
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if (!imageapi_image_sharpen($image, $data['radius'], $data['sigma'], $data['amount'], $data['threshold'])) {
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watchdog('imagecache', 'imagecache_sharpen_image failed. image: %image, data: %data.', array('%image' => $image->source, '%data' => print_r($data, TRUE)), WATCHDOG_ERROR);
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return FALSE;
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}
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return TRUE;
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}
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