I am sure this is the right way to handle tagged images. Just need to sort out how to update the image/xxx and mimeimage when tags are added to an existing image.

1 files changed, 152 insertions, 0 deletions

diff --git a/plugins/mime.taggedimage.php b/plugins/mime.taggedimage.php
new file mode 100644
index 0000000..cd6228d
--- /dev/null
+++ b/plugins/mime.taggedimage.php
@@ -0,0 +1,152 @@
+<?php
+/**
+ * @version		$Header: /cvsroot/bitweaver/_bit_liberty/plugins/Attic/mime.taggedimage.php,v 1.1 2010/05/13 11:13:42 lsces Exp $
+ *
+ * @author		xing  <xing@synapse.plus.com>
+ * @version		$Revision: 1.1 $
+ * created		Thursday May 13, 2010 ( from mime.image.php )
+ * @package		liberty
+ * @subpackage	liberty_mime_handler
+ **/
+
+/**
+ * setup
+ */
+global $gLibertySystem;
+
+/**
+ *  This is the name of the plugin - max char length is 16
+ * As a naming convention, the liberty mime handler definition should start with:
+ * PLUGIN_MIME_GUID_
+ */
+define( 'PLUGIN_MIME_GUID_TAGGEDIMAGE', 'mimetaggedimage' );
+
+$pluginParams = array (
+	// Set of functions and what they are called in this paricular plugin
+	// Use the GUID as your namespace
+	'verify_function'     => 'mime_default_verify',
+	'store_function'      => 'mime_taggedimage_store',
+	'update_function'     => 'mime_taggedimage_update',
+	'load_function'       => 'mime_taggedimage_load',
+	'download_function'   => 'mime_default_download',
+	'expunge_function'    => 'mime_default_expunge',
+	'help_function'       => 'mime_taggedimage_help',
+	// Brief description of what the plugin does
+	'title'               => 'Advanced Image Processing with image tagging',
+	'description'         => 'Extract image meta data and display relevant information to the user and pick individual display options for images. Also allows for area tagging of images.',
+	// Templates to display the files
+	//'view_tpl'            => 'bitpackage:liberty/mime/image/view.tpl',
+	//'attachment_tpl'      => 'bitpackage:liberty/mime/image/attachment.tpl',
+	// url to page with options for this plugin
+	//'plugin_settings_url' => LIBERTY_PKG_URL.'admin/plugins/mime_image.php',
+	// This should be the same for all mime plugins
+	'plugin_type'         => MIME_PLUGIN,
+	// Set this to TRUE if you want the plugin active right after installation
+	'auto_activate'       => TRUE,
+	// Help page on bitweaver.org
+	//'help_page'           => 'LibertyMime+Image+Plugin',
+	// this should pick up all image
+	'mimetypes'           => array(
+		'#image/.*#i',
+	),
+);
+/*
+// currently, there's only one option in the image edit file - panorama image setting
+if( $gBitSystem->isFeatureActive( 'mime_tag_image_panoramas' )) {
+	$pluginParams['edit_tpl'] =  'bitpackage:liberty/mime/image/edit.tpl';
+}
+*/
+$gLibertySystem->registerPlugin( PLUGIN_MIME_GUID_TAGGEDIMAGE, $pluginParams );
+
+/**
+ * Store the data in the database
+ * 
+ * @param array $pStoreRow File data needed to store details in the database - sanitised and generated in the verify function
+ * @access public
+ * @return TRUE on success, FALSE on failure - $pStoreRow[errors] will contain reason
+ */
+function mime_taggedimage_store( &$pStoreRow ) {
+	// this will set the correct pluign guid, even if we let default handle the store process
+	$pStoreRow['attachment_plugin_guid'] = PLUGIN_MIME_GUID_TAGGEDIMAGE;
+	$pStoreRow['log'] = array();
+
+	// if storing works, we process the image
+	if( $ret = mime_default_store( $pStoreRow )) {
+		if( !mime_image_store_exif_data( $pStoreRow )) {
+			// if it all goes tits up, we'll know why
+			$pStoreRow['errors'] = $pStoreRow['log'];
+			$ret = FALSE;
+		}
+	}
+	return $ret;
+}
+
+/**
+ * mime_image_update update file information in the database if there were changes.
+ * 
+ * @param array $pStoreRow File data needed to update details in the database
+ * @access public
+ * @return TRUE on success, FALSE on failure - $pStoreRow[errors] will contain reason
+ */
+function mime_taggedimage_update( &$pStoreRow, $pParams = NULL ) {
+	global $gThumbSizes, $gBitSystem;
+
+	$ret = TRUE;
+
+	// this will set the correct pluign guid, even if we let default handle the store process
+	$pStoreRow['attachment_plugin_guid'] = PLUGIN_MIME_GUID_TAGGEDIMAGE;
+
+	// if storing works, we process the image
+	if( !empty( $pStoreRow['upload'] ) && $ret = mime_default_update( $pStoreRow )) {
+		if( !mime_image_store_exif_data( $pStoreRow )) {
+			// if it all goes tits up, we'll know why
+			$pStoreRow['errors'] = $pStoreRow['log'];
+			$ret = FALSE;
+		}
+/* Tagging panoramas comes later
+	} elseif( $gBitSystem->isFeatureActive( 'mime_image_panoramas' ) && !empty( $pParams['preference']['is_panorama'] ) && empty( $pStoreRow['thumbnail_url']['panorama'] )) {
+		if( !mime_image_create_panorama( $pStoreRow )) {
+			$ret = FALSE;
+		}
+	} elseif( empty( $pParams['preference']['is_panorama'] ) && !empty( $pStoreRow['thumbnail_url']['panorama'] )) {
+		// we remove the panorama setting in the database and the panorama thumb
+		if( LibertyAttachable::validateStoragePath( BIT_ROOT_PATH.$pStoreRow['thumbnail_url']['panorama'] )) {
+			@unlink( BIT_ROOT_PATH.$pStoreRow['thumbnail_url']['panorama'] );
+		}
+*/
+	}
+
+	return $ret;
+}
+
+/**
+ * Load file data from the database
+ * 
+ * @param array $pFileHash Contains all file information
+ * @param array $pPrefs Attachment preferences taken liberty_attachment_prefs
+ * @param array $pParams Parameters for loading the plugin - e.g.: might contain values such as thumbnail size from the view page
+ * @access public
+ * @return TRUE on success, FALSE on failure - $pStoreRow[errors] will contain reason
+ */
+function mime_taggedimage_load( &$pFileHash, &$pPrefs, $pParams = NULL ) {
+	global $gBitSystem;
+	// don't load a mime image if we don't have an image for this file
+	if( $ret = mime_image_load( $pFileHash, $pPrefs, $pParams )) {
+		// Look for image tags
+	}
+	return $ret;
+}
+
+/**
+ * mime_taggedimage_help 
+ * 
+ * @access public
+ * @return string
+ */
+function mime_taggedimage_help() {
+	$help =
+		tra( "If you have a tagged image and you are using <strong>{attachment}</strong> to insert it, you can use <strong>tagged='1''</strong> to enable tags display on the image." )."<br />"
+		.tra( "Example:" ).' '."{attachment id='13' tagged='1'}";
+	return $help;
+}
+?>