<?php
/*
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2007 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* This plugin will handle the editing of a photo
* @package GalleryCore
* @subpackage UserInterface
* @author Bharat Mediratta <bharat@menalto.com>
* @version $Revision: 15513 $
*/
class ItemEditPhoto extends ItemEditPlugin {
/**
* @see ItemEditPlugin::handleRequest
*/
function handleRequest($form, &$item, &$preferred) {
global $gallery;
$status = null;
$error = array();
if (isset($form['action']['save'])) {
/* Validate the input data */
for ($i = 0; $i < count($form['resizes']); $i++) {
if (empty($form['resizes'][$i]['active'])) {
continue;
}
if (empty($form['resizes'][$i]['width'])
|| empty($form['resizes'][$i]['height'])) {
$error[] = sprintf('form[error][resizes][%d][size][missing]', $i);
} else if (!($tmp = rtrim($form['resizes'][$i]['width'], '%'))
|| !is_numeric($tmp) || $tmp <= 0
|| !($tmp = rtrim($form['resizes'][$i]['height'], '%'))
|| !is_numeric($tmp) || $tmp <= 0) {
$error[] = sprintf('form[error][resizes][%d][size][invalid]', $i);
}
}
if (empty($error)) {
/* Load existing resizes */
$itemId = $item->getId();
list ($ret, $resizes) = GalleryCoreApi::fetchResizesByItemIds(array($itemId));
if ($ret) {
return array($ret, null, null, null);
}
$resizes = isset($resizes[$itemId]) ? $resizes[$itemId] : array();
$resizesTable = array();
foreach ($resizes as $resize) {
$postFilter = $resize->getPostFilterOperations();
$resizesTable[$resize->getDerivativeOperations()] = $resize;
}
list ($ret, $source) = GalleryCoreApi::fetchPreferredSource($item);
if ($ret) {
return array($ret, null, null, null);
}
/* Make sure that we have a toolkit before adding back the resizes */
list ($ret, $toolkit, $outputMimeType) =
GalleryCoreApi::getToolkitByOperation($source->getMimeType(), 'scale');
if ($ret) {
return array($ret, null, null, null);
}
if (isset($toolkit)) {
/* Determine operations and check against existing resizes */
$count = count($form['resizes']);
for ($i = 0; $i < $count; $i++) {
if (empty($form['resizes'][$i]['active'])) {
unset($form['resizes'][$i]);
continue;
}
$operations = 'scale|' . $form['resizes'][$i]['width'] . ','
. $form['resizes'][$i]['height'];
list ($ret, $newOperations, $newOutputMimeType) =
GalleryCoreApi::makeSupportedViewableOperationSequence(
$outputMimeType, $operations);
if ($ret) {
return array($ret, null, null, null);
}
if (!$newOperations || !$newOutputMimeType) {
$newOperations = $operations;
$newOutputMimeType = $outputMimeType;
}
if (isset($resizesTable[$newOperations])) {
/* Keep existing resize */
unset($resizesTable[$newOperations]);
unset($form['resizes'][$i]);
} else {
/* Create resize with these settings on next pass */
$form['resizes'][$i]['operations'] = $newOperations;
$form['resizes'][$i]['mimeType'] = $newOutputMimeType;
}
}
/* Add new resizes, using existing derivative entities until we run out */
foreach ($form['resizes'] as $resizeData) {
if (!empty($resizesTable)) {
$derivative = array_shift($resizesTable);
list ($ret, $lockId) =
GalleryCoreApi::acquireWriteLock($derivative->getId());
if ($ret) {
return array($ret, null, null, null);
}
} else {
list ($ret, $derivative) = GalleryCoreApi::newFactoryInstanceByHint(
'GalleryDerivative', $source->getEntityType());
if ($ret) {
return array($ret, null, null, null);
}
if (!isset($derivative)) {
return array(GalleryCoreApi::error(ERROR_MISSING_OBJECT),
null, null, null);
}
$ret = $derivative->create($itemId, DERIVATIVE_TYPE_IMAGE_RESIZE);
if ($ret) {
return array($ret, null, null, null);
}
}
$derivative->setMimeType($resizeData['mimeType']);
$derivative->setDerivativeOperations($resizeData['operations']);
$derivative->setDerivativeSourceId($source->getId());
if (isset($postFilter)) {
$derivative->setPostFilterOperations($postFilter);
}
$ret = $derivative->save();
if ($ret) {
return array($ret, null, null, null);
}
if (isset($lockId)) {
$ret = GalleryCoreApi::releaseLocks($lockId);
if ($ret) {
return array($ret, null, null, null);
}
$lockId = null;
}
}
/* Remove any leftover resizes */
foreach ($resizesTable as $resize) {
$ret = GalleryCoreApi::deleteEntityById($resize->getId());
if ($ret) {
return array($ret, null, null, null);
}
}
}
list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'core');
if ($ret) {
return array($ret, null, null, null);
}
$status = $module->translate('Changes saved successfully');
}
}
return array(null, $error, $status, false);
}
/**
* @see ItemEditPlugin::loadTemplate
*/
function loadTemplate(&$template, &$form, $item, $thumbnail) {
global $gallery;
if ($form['formName'] != 'ItemEditPhoto') {
/* First time around, reset the form */
$form['formName'] = 'ItemEditPhoto';
/* Load the resizes */
list ($ret, $resizes) = GalleryCoreApi::fetchResizesByItemIds(array($item->getId()));
if ($ret) {
return array($ret, null, null);
}
if (!empty($resizes)) {
foreach ($resizes[$item->getId()] as $resize) {
if (preg_match('/(?:scale|resize)\|(\d+%?)(?:,(\d+%?))?/',
$resize->getDerivativeOperations(), $matches)) {
$width = $matches[1];
$height = empty($matches[2]) ? $width : $matches[2];
$form['resizes'][] = array('active' => 1,
'width' => $width, 'height' => $height);
}
}
}
}
/* Tag on a few form blanks */
$extraBlanks = 3;
if (isset($form['resizes'])) {
foreach ($form['resizes'] as $resize) {
if (!isset($resize['active'])) {
$extraBlanks--;
}
}
}
while ($extraBlanks-- > 0) {
$form['resizes'][] = array('active' => 0, 'width' => '', 'height' => '');
}
/* Make sure that 'active' is set to a value */
for ($i = 0; $i < sizeof($form['resizes']); $i++) {
if (!isset($form['resizes'][$i]['active'])) {
$form['resizes'][$i]['active'] = false;
}
}
$ItemEditPhoto = array();
/* Check to see if we have a preferred source */
list ($ret, $results) =
GalleryCoreApi::fetchPreferredsByItemIds(array($item->getId()));
if ($ret) {
return array($ret, null, null);
}
$sourceMimeTypes = array($item->getMimeType());
if (empty($results)) {
$ItemEditPhoto['editPhoto']['hasPreferredSource'] = false;
} else {
$preferred = $results[$item->getId()];
if (preg_match("/(rotate|resize|scale)\|/", $preferred->getDerivativeOperations())) {
$ItemEditPhoto['editPhoto']['hasPreferredSource'] = true;
} else {
$ItemEditPhoto['editPhoto']['hasPreferredSource'] = false;
}
$sourceMimeTypes[] = $preferred->getMimeType();
}
/* Figure out what options we can provide */
list ($ret, $ItemEditPhoto['editSizes']['can']['createResizes']) =
$this->_checkForOperation('resize', $sourceMimeTypes);
if ($ret) {
return array($ret, null, null);
}
$template->setVariable('ItemEditPhoto', $ItemEditPhoto);
$template->setVariable('controller', 'core.ItemEditPhoto');
return array(null, 'modules/core/templates/ItemEditPhoto.tpl', 'modules_core');
}
/**
* @see ItemEditPlugin::isSupported
*/
function isSupported($item, $thumbnail) {
return (GalleryUtilities::isA($item, 'GalleryPhotoItem'));
}
/**
* @see ItemEditPlugin::getTitle
*/
function getTitle() {
list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'core');
if ($ret) {
return array($ret, null);
}
return array(null, $module->translate('Photo'));
}
}
?>
