Viewing file:  ItemEditRotateAndScalePhoto.inc (8.18 KB) -rw-r--r--
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<?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 applying operations to a photo
* @package GalleryCore
* @subpackage UserInterface
* @author Bharat Mediratta <bharat@menalto.com>
* @version $Revision: 15513 $
*/
class ItemEditRotateAndScalePhoto extends ItemEditPlugin {
/**
* @see ItemEditPlugin::handleRequest
*/
function handleRequest($form, &$item, &$preferred) {
list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'core');
if ($ret) {
return array($ret, null, null, null);
}
$status = null;
$error = array();
$operation = null;
/* Figure out which command we're taking */
if (isset($form['action']['resize'])) {
if (empty($form['resize']['width']) || empty($form['resize']['height'])) {
$error[] = 'form[error][resize][size][missing]';
} else if (!($tmp = rtrim($form['resize']['width'], '%'))
|| !is_numeric($tmp) || $tmp < 1
|| !($tmp = rtrim($form['resize']['height'], '%'))
|| !is_numeric($tmp) || $tmp < 1) {
$error[] = 'form[error][resize][size][invalid]';
} else {
$operation = 'scale';
$args = array($form['resize']['width'], $form['resize']['height']);
}
} else if (isset($form['action']['rotate']['clockwise'])) {
$operation = 'rotate';
$args = array(90);
} else if (isset($form['action']['rotate']['counterClockwise'])) {
$operation = 'rotate';
$args = array(-90);
} else if (isset($form['action']['rotate']['flip'])) {
$operation = 'rotate';
$args = array(180);
} else if (isset($form['action']['revertToOriginal'])) {
if (!empty($preferred)) {
/*
* Pull out the rotate and resize operations and let our change ripple
* down the derivative tree, if necessary
*/
$remainingOperations = array();
foreach (split(';', $preferred->getDerivativeOperations()) as $tmpOperation) {
if (preg_match("/^(rotate|resize|scale)\|/", $tmpOperation)) {
$ret = GalleryCoreApi::adjustDependentDerivatives($preferred->getId(),
$tmpOperation,
true);
if ($ret) {
return array($ret, null, null, null);
}
} else {
$remainingOperations[] = $tmpOperation;
}
}
list ($ret, $lockId) = GalleryCoreApi::acquireWriteLock($preferred->getId());
if ($ret) {
return array($ret, null, null, null);
}
list ($ret, $preferred) = $preferred->refresh();
if ($ret) {
return array($ret, null, null, null);
}
if ($remainingOperations) {
$preferred->setDerivativeOperations(join(';', $remainingOperations));
} else {
$preferred->setDerivativeOperations(null);
}
$ret = $preferred->save();
if ($ret) {
return array($ret, null, null, null);
}
$ret = GalleryCoreApi::releaseLocks($lockId);
if ($ret) {
return array($ret, null, null, null);
}
if ($preferred->hasNoOperations()) {
$ret = GalleryCoreApi::remapSourceIds(
$preferred->getId(), $preferred->getDerivativeSourceId());
if ($ret) {
return array($ret, null, null, null);
}
$ret = GalleryCoreApi::deleteEntityById($preferred->getId());
if ($ret) {
return array($ret, null, null, null);
}
}
/* Prepare our status message */
$status = $module->translate('Reverted rotate and scale changes successfully');
}
}
$preserveOriginal = isset($form['preserveOriginal']);
if ($form['serialNumber'] != $item->getSerialNumber()) {
return array(GalleryCoreApi::error(ERROR_OBSOLETE_DATA), null, null, null);
}
/*
* If we have a command, then apply it to the correct object.
*/
if (!empty($operation)) {
$ret = GalleryCoreApi::applyToolkitOperation(
$operation, $args, $preserveOriginal, $item, $preferred);
if ($ret) {
return array($ret, null, null, null);
}
/* Set our status message */
switch ($operation) {
case 'rotate':
$status = $module->translate('Rotated photo successfully');
break;
case 'scale':
$status = $module->translate('Scaled photo successfully');
break;
}
}
return array(null, $error, $status, false);
}
/**
* @see ItemEditPlugin::loadTemplate
*/
function loadTemplate(&$template, &$form, $item, $thumbnail) {
$ItemEditRotateAndScalePhoto = array();
list ($ret, $ItemEditRotateAndScalePhoto['isAdmin']) =
GalleryCoreApi::isUserInSiteAdminGroup();
if ($ret) {
return array($ret, null, null);
}
if ($form['formName'] != 'ItemEditRotateAndScalePhoto') {
/* First time around, reset the form */
$form['resize']['width'] = $form['resize']['height'] = '';
$form['preserveOriginal'] = 1;
$form['formName'] = 'ItemEditRotateAndScalePhoto';
}
if ($item->isLinked()) {
$ItemEditRotateAndScalePhoto['editPhoto']['isLinked'] = true;
$ItemEditRotateAndScalePhoto['editPhoto']['isLinkedTo'] = false;
} else {
list ($ret, $linkedIds) = GalleryCoreApi::fetchEntitiesLinkedTo($item->getId());
if ($ret) {
return array($ret, null, null);
}
$ItemEditRotateAndScalePhoto['editPhoto']['isLinkedTo'] = !empty($linkedIds);
$ItemEditRotateAndScalePhoto['editPhoto']['isLinked'] = false;
}
/* Check to see if we have a preferred source */
list ($ret, $results) =
GalleryCoreApi::fetchPreferredsByItemIds(array($item->getId()));
if ($ret) {
return array($ret, null, null);
}
/* Can we allow to delete the original? */
$mimeType = $item->getMimeType();
list ($ret, $toolkit) =
GalleryCoreApi::getToolkitByOperation($mimeType, 'rotate');
if ($ret) {
return array($ret, null, null);
}
$ItemEditRotateAndScalePhoto['editPhoto']['noToolkitSupport'] = !isset($toolkit);
/* Get worst of rotate and resize */
if (isset($toolkit)) {
list ($ret, $toolkit) =
GalleryCoreApi::getToolkitByOperation($mimeType, 'resize');
if ($ret) {
return array($ret, null, null);
}
$ItemEditRotateAndScalePhoto['editPhoto']['noToolkitSupport'] = !isset($toolkit);
}
$sourceMimeTypes = array($mimeType);
if (empty($results)) {
$ItemEditRotateAndScalePhoto['editPhoto']['hasPreferredSource'] = false;
} else {
$preferred = $results[$item->getId()];
if (preg_match("/(rotate|resize|scale)\|/", $preferred->getDerivativeOperations())) {
$ItemEditRotateAndScalePhoto['editPhoto']['hasPreferredSource'] = true;
} else {
$ItemEditRotateAndScalePhoto['editPhoto']['hasPreferredSource'] = false;
}
$sourceMimeTypes[] = $preferred->getMimeType();
}
/* Figure out what options we can provide */
list ($ret, $ItemEditRotateAndScalePhoto['editPhoto']['can']['rotate']) =
$this->_checkForOperation('rotate', $sourceMimeTypes);
if ($ret) {
return array($ret, null, null);
}
list ($ret, $ItemEditRotateAndScalePhoto['editPhoto']['can']['resize']) =
$this->_checkForOperation('scale', $sourceMimeTypes);
if ($ret) {
return array($ret, null, null);
}
$template->setVariable('ItemEditRotateAndScalePhoto', $ItemEditRotateAndScalePhoto);
$template->setVariable('controller', 'core.ItemEditRotateAndScalePhoto');
return array(null,
'modules/core/templates/ItemEditRotateAndScalePhoto.tpl', 'modules_core');
}
/**
* @see ItemEditPlugin::isSupported
*/
function isSupported($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('Modify Photo'));
}
}
?>
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