ilMediaItem Class Reference

Class ilMediaItem. More...

Collaboration diagram for ilMediaItem:

Public Member Functions
	ilMediaItem ($a_id=0)
	setId ($a_id)
	set media item id
	getId ()
	get media item id
	setMobId ($a_mob_id)
	set id of parent media object
	getMobId ()
	get id of parent media object
	setNr ($a_nr)
	set number of media item within media object
	getNr ()
	setTextRepresentation ($a_val)
	Set text representation.
	getTextRepresentation ()
	Get text representation.
	create ()
	create persistent media item
	update ()
	update media item data (without map areas!)
	writeParameter ($a_name, $a_value)
	Write parameter.
	read ()
	read media item data (item id or (mob_id and nr) must be set)
	writeThumbTried ($a_tried)
	write thumbnail creation try data ("y"/"n")
	_getMediaItemsOfMObId ($a_mobId, $a_purpose)
	_getMediaItemsOfMOb (&$a_mob)
	read media items into media objects (static)
	deleteAllItemsOfMob ($a_mob_id)
	static
	setPurpose ($a_purpose)
	getPurpose ()
	setLocation ($a_location)
	getLocation ()
	setLocationType ($a_type)
	getLocationType ()
	setFormat ($a_format)
	getFormat ()
	setThumbTried ($a_tried)
	getThumbTried ()
	addMapArea (&$a_map_area)
	deleteMapArea ($nr)
	delete map area
&	getMapArea ($nr)
	get map area
	getMapAreas ()
	get map areas
	getWidth ()
	get width
	setWidth ($a_width)
	set width
	getHeight ()
	get height
	setHeight ($a_height)
	set height
	getOriginalSize ()
	get original size
	setCaption ($a_caption)
	set caption
	getCaption ()
	get caption
	setHAlign ($a_halign)
	set horizontal align
	getHAlign ()
	get horizontal align
	setParameter ($a_name, $a_value)
	set parameter
	resetParameters ()
	reset parameters
	setParameters ($a_par)
	set alle parameters via parameter string (format: par1="value1", par2="value2", ...)
	getParameters ()
	get all parameters (in array)
	getParameterString ()
	get all parameters (as string)
	getParameter ($a_name)
	get a single parameter
	getWorkDirectory ()
	get work directory for image map editing
	createWorkDirectory ()
	create work directory for image map editing
	getSuffix ()
	get location suffix
	getMapWorkCopyType ()
	get image type of image map work copy
	getMapWorkCopyName ($a_reference_copy=false)
	Get name of image map work copy file.
	getDirectory ()
	get media file directory
	getThumbnailDirectory ($a_mode="filesystem")
	get media file directory
	getThumbnailTarget ($a_size="")
	get thumbnail target
	copyOriginal ()
	Copy the orginal file.
	makeMapWorkCopy ($a_area_nr=0, $a_exclude=false)
	make map work copy of image
	addAreaToMapWorkCopy ($a_shape, $a_coords)
	draw a new area in work image
	outputMapWorkCopy ()
	output raw map work copy file
	buildMapWorkImage ()
	build image map work image
	saveMapWorkImage ()
	save image map work image
&	getMapWorkImage ()
	get image map work image
	getMapAreasXML ($a_insert_inst=false, $a_inst=0)
	get xml code of media items' areas
	_resolveMapAreaLinks ($a_mob_id)
	resolve internal links of all media items of a media object
	_getMapAreasIntLinks ($a_mob_id)
	get all internal links of map areas of a mob
	extractUrlParameters ()
	Extract parameters of special external references to parameter array.

Static Public Member Functions
static	_lookupLocationForMobId ($a_mob_id, $a_purpose)
	Lookup location for mob id.
static	_lookupMobId ($a_med_id)
	Lookup Mob ID.

Data Fields
	$id
	$purpose
	$location
	$location_type
	$format
	$width
	$height
	$caption
	$halign
	$parameters
	$mob_id
	$nr
	$mapareas
	$map_cnt
	$map_image
	$color1
	$color2

Detailed Description

Class ilMediaItem.

Media Item, component of a media object (file or reference)

Author

Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version

Id:

class.ilMediaItem.php 25692 2010-09-15 09:44:16Z mwarkus

Definition at line 16 of file class.ilMediaItem.php.

Member Function Documentation

ilMediaItem::_getMapAreasIntLinks

(

$a_mob_id

)

get all internal links of map areas of a mob

Parameters

int

$a_mob_id

media object id

Definition at line 1125 of file class.ilMediaItem.php.

References $ilDB, $query, and ilMapArea\_getIntLinks().

Referenced by ilPageObjectGUI\displayMedia(), ilObjMediaObject\exportMediaFullscreen(), ilPageObject\getInternalLinks(), ilLMPresentationGUI\ilMedia(), ilGlossaryPresentationGUI\media(), and ilObjMediaPoolGUI\showMedia().

        {
                global $ilDB;
                
                // read media_items records
                $query = "SELECT * FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mob_id, "integer")." ORDER BY nr";

                $item_set = $ilDB->query($query);
                $links = array();
                while ($item_rec = $ilDB->fetchAssoc($item_set))
                {
                        $map_links = ilMapArea::_getIntLinks($item_rec["id"]);
                        foreach($map_links as $key => $map_link)
                        {
                                $links[$key] = $map_link;
                        }
                }
                return $links;
        }

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ilMediaItem::_getMediaItemsOfMOb

(

&

$a_mob

)

read media items into media objects (static)

Parameters

object

$a_mob

media object

Definition at line 375 of file class.ilMediaItem.php.

References $ilDB, $query, ilMapArea\_getMaxNr(), and ilMediaItem().

Referenced by ilObjMediaObject\read().

        {
                global $ilDB;
                
                // read media_object record
                $query = "SELECT * FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mob->getId(), "integer")." ".
                        "ORDER BY nr";
                $item_set = $ilDB->query($query);
                while ($item_rec = $ilDB->fetchAssoc($item_set))
                {
                        $media_item =& new ilMediaItem();
                        $media_item->setNr($item_rec["nr"]);
                        $media_item->setId($item_rec["id"]);
                        $media_item->setLocation($item_rec["location"]);
                        $media_item->setLocationType($item_rec["location_type"]);
                        $media_item->setFormat($item_rec["format"]);
                        $media_item->setWidth($item_rec["width"]);
                        $media_item->setHeight($item_rec["height"]);
                        $media_item->setHAlign($item_rec["halign"]);
                        $media_item->setCaption($item_rec["caption"]);
                        $media_item->setPurpose($item_rec["purpose"]);
                        $media_item->setMobId($item_rec["mob_id"]);
                        $media_item->setThumbTried($item_rec["tried_thumb"]);
                        $media_item->setTextRepresentation($item_rec["text_representation"]);

                        // get item parameter
                        $query = "SELECT * FROM mob_parameter WHERE med_item_id = ".
                                $ilDB->quote($item_rec["id"], "integer");
                        $par_set = $ilDB->query($query);
                        while ($par_rec = $ilDB->fetchAssoc($par_set))
                        {
                                $media_item->setParameter($par_rec["name"], $par_rec["value"]);
                        }

                        // get item map areas
                        $max = ilMapArea::_getMaxNr($media_item->getId());
                        for ($i = 1; $i <= $max; $i++)
                        {
                                $area =& new ilMapArea($media_item->getId(), $i);
                                $media_item->addMapArea($area);
                        }

                        // add media item to media object
                        $a_mob->addMediaItem($media_item);
                }
        }

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ilMediaItem::_getMediaItemsOfMObId	(		$a_mobId,
			$a_purpose
	)

Definition at line 353 of file class.ilMediaItem.php.

References $ilDB, and $query.

Referenced by ilObjectFeedWriter\ilObjectFeedWriter().

        {
                global $ilDB;
                
                // read media_object record
                $query = "SELECT * FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mobId, "integer")." ".
                        "AND purpose=" . $ilDB->quote($a_purpose, "text")." ORDER BY nr";
                $item_set = $ilDB->query($query);
                
                while ($item_rec = $ilDB->fetchAssoc($item_set))
                {
                        return $item_rec;
                }
                return false;
        }

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static ilMediaItem::_lookupLocationForMobId (   $a_mob_id,   $a_purpose  )

static

Lookup location for mob id.

Parameters

int	$a_mob_id	media object id
string	$a_purpose	purpose

Definition at line 309 of file class.ilMediaItem.php.

References $ilDB, and $query.

Referenced by ilObjMediaObject\_lookupItemPath().

        {
                global $ilDB;
                
                // read media_object record
                $query = "SELECT * FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mob_id, "integer")." ".
                        "AND purpose = ".$ilDB->quote($a_purpose, "text");
                $set = $ilDB->query($query);
                if ($rec = $ilDB->fetchAssoc($set))
                {
                        return $rec["location"];
                }

                return "";
        }

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static ilMediaItem::_lookupMobId (   $a_med_id )

static

Lookup Mob ID.

Parameters

int

$a_med_id

media item id

Definition at line 331 of file class.ilMediaItem.php.

References $ilDB, and $query.

Referenced by ilMapArea\_getMobsForTarget().

        {
                global $ilDB;
                
                // read media_object record
                $query = "SELECT * FROM media_item WHERE id = ".
                        $ilDB->quote($a_med_id, "integer");
                $set = $ilDB->query($query);
                if ($rec = $ilDB->fetchAssoc($set))
                {
                        return $rec["mob_id"];
                }

                return "";
        }

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ilMediaItem::_resolveMapAreaLinks

(

$a_mob_id

)

resolve internal links of all media items of a media object

Parameters

int

$a_mob_id

media object id

Definition at line 1104 of file class.ilMediaItem.php.

References $ilDB, $query, and ilMapArea\_resolveIntLinks().

Referenced by ilContObjParser\processPagesToParse(), and ilPageObject\resolveIntLinks().

        {
                global $ilDB;
                
//echo "mediaItems::resolve<br>";
                // read media_object record
                $query = "SELECT * FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mob_id, "integer")." ".
                        "ORDER BY nr";
                $item_set = $ilDB->query($query);
                while ($item_rec = $ilDB->fetchAssoc($item_set))
                {
                        ilMapArea::_resolveIntLinks($item_rec["id"]);
                }
        }

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ilMediaItem::addAreaToMapWorkCopy	(		$a_shape,
			$a_coords
	)

draw a new area in work image

Parameters

string	$a_shape	shape
string	$a_coords	coordinates string

Definition at line 943 of file class.ilMediaItem.php.

References buildMapWorkImage(), getHeight(), getMapWorkCopyName(), getMapWorkImage(), getWidth(), and saveMapWorkImage().

        {
                $this->buildMapWorkImage();

                // determine ratios
                $size = @getimagesize($this->getMapWorkCopyName());
                $x_ratio = 1;
                if ($size[0] > 0 && $this->getWidth() > 0)
                {
                        $x_ratio = $this->getWidth() / $size[0];
                }
                $y_ratio = 1;
                if ($size[1] > 0 && $this->getHeight() > 0)
                {
                        $y_ratio = $this->getHeight() / $size[1];
                }

                // add new area to work image
                $area = new ilMapArea();
                $area->setShape($a_shape);
                $area->setCoords($a_coords);
                $area->draw($this->getMapWorkImage(), $this->color1, $this->color2, false,
                        $x_ratio, $y_ratio);

                $this->saveMapWorkImage();
        }

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ilMediaItem::addMapArea

(

&

$a_map_area

)

Definition at line 503 of file class.ilMediaItem.php.

References $map_cnt.

Referenced by read().

        {
                $this->mapareas[$this->map_cnt] =& $a_map_area;
                $this->map_cnt++;
        }

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ilMediaItem::buildMapWorkImage

(

)

build image map work image

Definition at line 988 of file class.ilMediaItem.php.

References getMapWorkCopyName(), and getMapWorkCopyType().

Referenced by addAreaToMapWorkCopy(), and makeMapWorkCopy().

        {
                $im_type = strtolower($this->getMapWorkCopyType());

                switch ($im_type)
                {
                        case "gif":
                                $this->map_image = ImageCreateFromGIF($this->getMapWorkCopyName());
                                break;

                        case "jpg":
                                $this->map_image = ImageCreateFromJPEG($this->getMapWorkCopyName());
                                break;

                        case "png":
                                $this->map_image = ImageCreateFromPNG($this->getMapWorkCopyName());
                                break;
                }

                // try to allocate black and white as color. if this is not possible, get the closest colors
                if (imagecolorstotal($this->map_image) > 250)
                {
                        $this->color1 = imagecolorclosest($this->map_image, 0, 0, 0);
                        $this->color2 = imagecolorclosest($this->map_image, 255, 255, 255);
                }
                else
                {
                        $this->color1 = imagecolorallocate($this->map_image, 0, 0, 0);
                        $this->color2 = imagecolorallocate($this->map_image, 255, 255, 255);
                }
        }

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ilMediaItem::copyOriginal

(

)

Copy the orginal file.

Definition at line 843 of file class.ilMediaItem.php.

References $handle, $lng, ilUtil\convertImage(), createWorkDirectory(), getDirectory(), getLocation(), getLocationType(), getMapWorkCopyName(), getMapWorkCopyType(), and ilUtil\sendFailure().

Referenced by makeMapWorkCopy().

        {
                global $lng;
            $this->createWorkDirectory();
                
                if ($this->getLocationType() != "Reference")
                {
                        ilUtil::convertImage($this->getDirectory()."/".$this->getLocation(),
                                $this->getMapWorkCopyName(),
                                $this->getMapWorkCopyType());
                }
                else
                {
                        // first copy the external file, if necessary
                        if (!is_file($this->getMapWorkCopyName(true)) || (filesize($this->getMapWorkCopyName(true)) == 0))
                        {
                                $handle = @fopen($this->getLocation(), "r");
                                $lcopy = fopen($this->getMapWorkCopyName(true), "w");
                                if ($handle && $lcopy)
                                {
                                        while (!feof($handle))
                                        {
                                                $content = fread($handle, 4096);
                                                fwrite($lcopy, $content);
                                        }
                                }
                                @fclose($lcopy);
                                @fclose($handle);
                        }
                        
                        // now, create working copy
                        ilUtil::convertImage($this->getMapWorkCopyName(true),
                                $this->getMapWorkCopyName(),
                                $this->getMapWorkCopyType());
                }

                if (!is_file($this->getMapWorkCopyName()))
                {
                    
                        ilUtil::sendFailure($lng->txt("cont_map_file_not_generated"));
                        return false;
                }
                return true;
        }

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ilMediaItem::create

(

)

create persistent media item

Definition at line 125 of file class.ilMediaItem.php.

References $ilDB, $name, $query, getCaption(), getFormat(), getHAlign(), getHeight(), getId(), getLocation(), getLocationType(), getMobId(), getNr(), getParameters(), getPurpose(), getTextRepresentation(), getWidth(), and setId().

        {
                global $ilDB;

                $item_id = $ilDB->nextId("media_item");
                $query = "INSERT INTO media_item (id,mob_id, purpose, location, ".
                        "location_type, format, width, ".
                        "height, halign, caption, nr, text_representation) VALUES ".
                        "(".
                        $ilDB->quote($item_id, "integer").",".
                        $ilDB->quote($this->getMobId(), "integer").",".
                        $ilDB->quote($this->getPurpose(), "text").",".
                        $ilDB->quote($this->getLocation(), "text").",".
                        $ilDB->quote($this->getLocationType(), "text").",".
                        $ilDB->quote($this->getFormat(), "text").",".
                        $ilDB->quote($this->getWidth(), "text").",".
                        $ilDB->quote($this->getHeight(), "text").",".
                        $ilDB->quote($this->getHAlign(), "text").",".
                        $ilDB->quote($this->getCaption(), "text").",".
                        $ilDB->quote($this->getNr(), "integer").",".
                        $ilDB->quote($this->getTextRepresentation(), "text").")";
                $ilDB->manipulate($query);
                
                $this->setId($item_id);

                // create mob parameters
                $params = $this->getParameters();
                foreach($params as $name => $value)
                {
                        $query = "INSERT INTO mob_parameter (med_item_id, name, value) VALUES ".
                                "(".$ilDB->quote($item_id, "integer").",".
                                $ilDB->quote($name, "text").",".
                                $ilDB->quote($value, "text").")";
                        $ilDB->manipulate($query);
                }

                // create map areas
                for ($i=0; $i < count($this->mapareas); $i++)
                {
                        if (is_object($this->mapareas[$i]))
                        {
                                $this->mapareas[$i]->setItemId($this->getId());
                                $this->mapareas[$i]->setNr($i + 1);
                                $this->mapareas[$i]->create();
                        }
                }
        }

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ilMediaItem::createWorkDirectory

(

)

create work directory for image map editing

Definition at line 713 of file class.ilMediaItem.php.

References ilUtil\createDirectory(), ilUtil\getDataDir(), and getWorkDirectory().

Referenced by copyOriginal().

        {
                if(!@is_dir(ilUtil::getDataDir()."/map_workfiles"))
                {
                        ilUtil::createDirectory(ilUtil::getDataDir()."/map_workfiles");
                }
                $work_dir = $this->getWorkDirectory();
                if(!@is_dir($work_dir))
                {
                        ilUtil::createDirectory($work_dir);
                }
        }

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ilMediaItem::deleteAllItemsOfMob

(

$a_mob_id

)

static

Definition at line 426 of file class.ilMediaItem.php.

References $ilDB, and $query.

Referenced by ilObjMediaObject\delete(), and ilObjMediaObject\update().

        {
                global $ilDB;
                
                // iterate all media items ob mob
                $query = "SELECT * FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mob_id, "integer");
                $item_set = $ilDB->query($query);
                while ($item_rec = $ilDB->fetchAssoc($item_set))
                {
                        // delete all parameters of media item
                        $query = "DELETE FROM mob_parameter WHERE med_item_id = ".
                                $ilDB->quote($item_rec["id"], "integer");
                        $ilDB->manipulate($query);

                        // delete all map areas of media item
                        $query = "DELETE FROM map_area WHERE item_id = ".
                                $ilDB->quote($item_rec["id"], "integer");
                        $ilDB->manipulate($query);
                }

                // delete media items
                $query = "DELETE FROM media_item WHERE mob_id = ".
                        $ilDB->quote($a_mob_id, "integer");
                $ilDB->manipulate($query);
        }

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ilMediaItem::deleteMapArea

(

$nr

)

delete map area

Definition at line 512 of file class.ilMediaItem.php.

References $map_cnt, and $nr.

        {
                for ($i=1; $i<=$this->map_cnt; $i++)
                {
                        if($i > $nr)
                        {
                                $this->mapareas[$i-2] =& $this->mapareas[$i-1];
                                $this->mapareas[$i-2]->setNr($i-1);
                        }
                }
                if($nr <= $this->map_cnt)
                {
                        unset($this->mapareas[$this->map_cnt - 1]);
                        $this->map_cnt--;
                }
        }

ilMediaItem::extractUrlParameters

(

)

Extract parameters of special external references to parameter array.

Definition at line 1149 of file class.ilMediaItem.php.

References getLocation(), getParameters(), and setParameter().

        {
                include_once("./Services/MediaObjects/classes/class.ilExternalMediaAnalyzer.php");
                $par = ilExternalMediaAnalyzer::extractUrlParameters(
                        $this->getLocation(), $this->getParameters());
                foreach ($par as $k => $v)
                {
                        $this->setParameter($k, $v);
                }
        }

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ilMediaItem::getCaption

(

)

get caption

Definition at line 616 of file class.ilMediaItem.php.

References $caption.

Referenced by create(), and update().

        {
                return $this->caption;
        }

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ilMediaItem::getDirectory

(

)

get media file directory

Definition at line 770 of file class.ilMediaItem.php.

References ilObjMediaObject\_getDirectory(), and getMobId().

Referenced by copyOriginal(), and getThumbnailTarget().

        {
                return ilObjMediaObject::_getDirectory($this->getMobId());
        }

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ilMediaItem::getFormat

(

)

Definition at line 488 of file class.ilMediaItem.php.

References $format.

Referenced by create(), getOriginalSize(), getThumbnailTarget(), and update().

        {
                return $this->format;
        }

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ilMediaItem::getHAlign

(

)

get horizontal align

Definition at line 632 of file class.ilMediaItem.php.

References $halign.

Referenced by create(), and update().

        {
                return $this->halign;
        }

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ilMediaItem::getHeight

(

)

get height

Definition at line 564 of file class.ilMediaItem.php.

References $height.

Referenced by addAreaToMapWorkCopy(), create(), makeMapWorkCopy(), and update().

        {
                return $this->height;
        }

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ilMediaItem::getId

(

)

get media item id

Returns

int media item id

Definition at line 64 of file class.ilMediaItem.php.

References $id.

Referenced by create(), getWorkDirectory(), read(), update(), writeParameter(), and writeThumbTried().

        {
                return $this->id;
        }

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ilMediaItem::getLocation

(

)

Definition at line 468 of file class.ilMediaItem.php.

References $location.

Referenced by copyOriginal(), create(), extractUrlParameters(), getMapWorkCopyName(), getOriginalSize(), getSuffix(), getThumbnailTarget(), and update().

        {
                return $this->location;
        }

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ilMediaItem::getLocationType

(

)

Definition at line 478 of file class.ilMediaItem.php.

References $location_type.

Referenced by copyOriginal(), create(), getOriginalSize(), getThumbnailTarget(), and update().

        {
                return $this->location_type;
        }

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& ilMediaItem::getMapArea

(

$nr

)

get map area

Definition at line 532 of file class.ilMediaItem.php.

References $nr.

        {
                return $this->mapareas[$nr-1];
        }

ilMediaItem::getMapAreas

(

)

get map areas

Definition at line 540 of file class.ilMediaItem.php.

References $mapareas.

        {
                return $this->mapareas;
        }

ilMediaItem::getMapAreasXML	(		$a_insert_inst = false,
			$a_inst = 0
	)

get xml code of media items' areas

Definition at line 1058 of file class.ilMediaItem.php.

References IL_INT_LINK.

        {
                $xml = "";

                // build xml of map areas
                for ($i=0; $i < count($this->mapareas); $i++)
                {
                        $area =& $this->mapareas[$i];
                        $xml .= "<MapArea Shape=\"".$area->getShape()."\" Coords=\"".$area->getCoords()."\">";
                        if ($area->getLinkType() == IL_INT_LINK)
                        {
                                $target_frame = $area->getTargetFrame();

                                if ($area->getType() == "GlossaryItem" && $target_frame == "")
                                {
                                        $target_frame = "Glossary";
                                }

                                $tf_str = ($target_frame == "")
                                        ? ""
                                        : "TargetFrame=\"".$target_frame."\"";
                                
                                $xml .= "<IntLink Target=\"".$area->getTarget($a_insert_inst, $a_inst)."\" Type=\"".
                                        $area->getType()."\" $tf_str>";
                                $xml .= $area->getTitle();
                                $xml .="</IntLink>";
                        }
                        else
                        {
                                $xml .= "<ExtLink Href=\"".str_replace("&", "&amp;",$area->getHref())."\" Title=\"".
                                        $area->getExtTitle()."\">";
                                $xml .= $area->getTitle();
                                $xml .="</ExtLink>";
                        }
                        $xml .= "</MapArea>";
                }

                return $xml;
        }

ilMediaItem::getMapWorkCopyName

(

$a_reference_copy = false

)

Get name of image map work copy file.

Parameters

string

Get name, for copy of external referenced image

Definition at line 749 of file class.ilMediaItem.php.

References $file, getLocation(), getMapWorkCopyType(), and getWorkDirectory().

Referenced by addAreaToMapWorkCopy(), buildMapWorkImage(), copyOriginal(), makeMapWorkCopy(), outputMapWorkCopy(), and saveMapWorkImage().

        {
                $file_arr = explode("/", $this->getLocation());
                $o_file = $file_arr[count($file_arr) - 1];
                $file_arr = explode(".", $o_file);
                unset($file_arr[count($file_arr) - 1]);
                $file = implode($file_arr, ".");

                if (!$a_reference_copy)
                {
                        return $this->getWorkDirectory()."/".$file.".".$this->getMapWorkCopyType();
                }
                else
                {
                        return $this->getWorkDirectory()."/l_copy_".$o_file;
                }
        }

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ilMediaItem::getMapWorkCopyType

(

)

get image type of image map work copy

Definition at line 739 of file class.ilMediaItem.php.

References ilUtil\getGDSupportedImageType(), and getSuffix().

Referenced by buildMapWorkImage(), copyOriginal(), getMapWorkCopyName(), outputMapWorkCopy(), and saveMapWorkImage().

        {
                return ilUtil::getGDSupportedImageType($this->getSuffix());
        }

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& ilMediaItem::getMapWorkImage

(

)

get image map work image

Definition at line 1049 of file class.ilMediaItem.php.

References $map_image.

Referenced by addAreaToMapWorkCopy(), and makeMapWorkCopy().

        {
                return $this->map_image;
        }

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ilMediaItem::getMobId

(

)

get id of parent media object

Returns

int media object id

Definition at line 84 of file class.ilMediaItem.php.

References $mob_id.

Referenced by create(), getDirectory(), getOriginalSize(), getThumbnailDirectory(), getThumbnailTarget(), read(), and update().

        {
                return $this->mob_id;
        }

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ilMediaItem::getNr

(

)

Definition at line 97 of file class.ilMediaItem.php.

References $nr.

Referenced by create(), read(), and update().

        {
                return $this->nr;
        }

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ilMediaItem::getOriginalSize

(

)

get original size

Definition at line 580 of file class.ilMediaItem.php.

References ilObjMediaObject\_getDirectory(), ilUtil\deducibleSize(), getFormat(), getLocation(), getLocationType(), and getMobId().

        {
                $mob_dir = ilObjMediaObject::_getDirectory($this->getMobId());

                if (ilUtil::deducibleSize($this->getFormat()))
                {
                        if ($this->getLocationType() == "LocalFile")
                        {
                                $loc = $mob_dir."/".$this->getLocation();
                        }
                        else
                        {
                                $loc = $this->getLocation();
                        }
                        $size = @getimagesize($loc);
                        
                        if ($size[0] > 0 && $size[1] > 0)
                        {
                                return array("width" => $size[0], "height" => $size[1]);
                        }
                }

                return false;
        }

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ilMediaItem::getParameter

(

$a_name

)

get a single parameter

Definition at line 697 of file class.ilMediaItem.php.

        {
                return $this->parameters[$a_name];
        }

ilMediaItem::getParameters

(

)

get all parameters (in array)

Definition at line 679 of file class.ilMediaItem.php.

References $parameters.

Referenced by create(), extractUrlParameters(), and update().

        {
                return $this->parameters;
        }

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ilMediaItem::getParameterString

(

)

get all parameters (as string)

Definition at line 688 of file class.ilMediaItem.php.

References ilUtil\assembleParameterString().

        {
                return ilUtil::assembleParameterString($this->parameters);
        }

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ilMediaItem::getPurpose

(

)

Definition at line 458 of file class.ilMediaItem.php.

References $purpose.

Referenced by create(), getThumbnailTarget(), and update().

        {
                return $this->purpose;
        }

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ilMediaItem::getSuffix

(

)

get location suffix

Definition at line 729 of file class.ilMediaItem.php.

References getLocation().

Referenced by getMapWorkCopyType().

        {
                $loc_arr = explode(".", $this->getLocation());

                return $loc_arr[count($loc_arr) - 1];
        }

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ilMediaItem::getTextRepresentation

(

)

Get text representation.

Returns

string text representation

Definition at line 117 of file class.ilMediaItem.php.

Referenced by create(), and update().

        {
                return $this->text_representation;
        }

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ilMediaItem::getThumbnailDirectory

(

$a_mode = "filesystem"

)

get media file directory

Definition at line 778 of file class.ilMediaItem.php.

References ilObjMediaObject\_getThumbnailDirectory(), and getMobId().

Referenced by getThumbnailTarget().

        {
                return ilObjMediaObject::_getThumbnailDirectory($this->getMobId(), $a_mode);
        }

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ilMediaItem::getThumbnailTarget

(

$a_size = ""

)

get thumbnail target

Definition at line 786 of file class.ilMediaItem.php.

References ilObjMediaObject\_createThumbnailDirectory(), ilUtil\convertImage(), getDirectory(), getFormat(), getLocation(), getLocationType(), getMobId(), getPurpose(), getThumbnailDirectory(), getThumbTried(), and writeThumbTried().

        {
                if (is_int(strpos($this->getFormat(), "image")))
                {
                        $thumb_file = $this->getThumbnailDirectory()."/".
                                $this->getPurpose().".jpeg";

                        $thumb_file_small = $this->getThumbnailDirectory()."/".
                                $this->getPurpose()."_small.jpeg";

                        // generate thumbnail (if not tried before)
                        if ($this->getThumbTried() == "n" && $this->getLocationType() == "LocalFile")
                        {
                                if (is_file($thumb_file))
                                {
                                        unlink($thumb_file);
                                }
                                if (is_file($thumb_file_small))
                                {
                                        unlink($thumb_file_small);
                                }
                                $this->writeThumbTried("y");
                                ilObjMediaObject::_createThumbnailDirectory($this->getMobId());
                                $med_file = $this->getDirectory()."/".$this->getLocation();

                                if (is_file($med_file))
                                {
                                        ilUtil::convertImage($med_file, $thumb_file, "jpeg", "80");
                                        ilUtil::convertImage($med_file, $thumb_file_small, "jpeg", "40");
                                }
                        }

                        if ($a_size == "small")
                        {
                                if (is_file($thumb_file_small))
                                {
                                        return $this->getThumbnailDirectory("output")."/".
                                                $this->getPurpose()."_small.jpeg?dummy=".rand(1, 999999);
                                }
                        }
                        else
                        {
                                if (is_file($thumb_file))
                                {
                                        return $this->getThumbnailDirectory("output")."/".
                                                $this->getPurpose().".jpeg?dummy=".rand(1, 999999);
                                }
                        }
                }

                return "";
        }

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ilMediaItem::getThumbTried

(

)

Definition at line 498 of file class.ilMediaItem.php.

Referenced by getThumbnailTarget().

        {
                return $this->tried_thumb;
        }

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ilMediaItem::getWidth

(

)

get width

Definition at line 548 of file class.ilMediaItem.php.

References $width.

Referenced by addAreaToMapWorkCopy(), create(), makeMapWorkCopy(), and update().

        {
                return $this->width;
        }

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ilMediaItem::getWorkDirectory

(

)

get work directory for image map editing

Definition at line 705 of file class.ilMediaItem.php.

References ilUtil\getDataDir(), and getId().

Referenced by createWorkDirectory(), and getMapWorkCopyName().

        {
                return ilUtil::getDataDir()."/map_workfiles/item_".$this->getId();
        }

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ilMediaItem::ilMediaItem

(

$a_id = 0

)

Definition at line 36 of file class.ilMediaItem.php.

References read(), and setId().

Referenced by _getMediaItemsOfMOb().

        {
                $this->parameters = array();
                $this->mapareas = array();
                $this->map_cnt = 0;

                if ($a_id != 0)
                {
                        $this->setId($a_id);
                        $this->read();
                }
        }

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ilMediaItem::makeMapWorkCopy	(		$a_area_nr = 0,
			$a_exclude = false
	)

make map work copy of image

Parameters

int	$a_area_nr	draw area $a_area_nr only
boolean	$a_exclude	true: draw all areas but area $a_area_nr

Definition at line 894 of file class.ilMediaItem.php.

References $lng, buildMapWorkImage(), copyOriginal(), getHeight(), getMapWorkCopyName(), getMapWorkImage(), getWidth(), and saveMapWorkImage().

        {
                global $lng;
                
                if (!$this->copyOriginal())
                {
                        return false;
                }
                $this->buildMapWorkImage();
                
                // determine ratios
                $size = @getimagesize($this->getMapWorkCopyName());
                $x_ratio = 1;
                if ($size[0] > 0 && $this->getWidth() > 0)
                {
                        $x_ratio = $this->getWidth() / $size[0];
                }
                $y_ratio = 1;
                if ($size[1] > 0 && $this->getHeight() > 0)
                {
                        $y_ratio = $this->getHeight() / $size[1];
                }

                // draw map areas
                for ($i=0; $i < count($this->mapareas); $i++)
                {
                        if (    ((($i+1) == $a_area_nr) && !$a_exclude) ||
                                        ((($i+1) != $a_area_nr) && $a_exclude) ||
                                        ($a_area_nr == 0)
                                )
                        {
                                $area =& $this->mapareas[$i];
                                $area->draw($this->getMapWorkImage(), $this->color1, $this->color2, true,
                                        $x_ratio, $y_ratio);
                        }
                }

                $this->saveMapWorkImage();
                
                return true;
        }

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ilMediaItem::outputMapWorkCopy

(

)

output raw map work copy file

Definition at line 973 of file class.ilMediaItem.php.

References exit, getMapWorkCopyName(), and getMapWorkCopyType().

        {
                if ($this->getMapWorkCopyType() != "")
                {
                        header("Pragma: no-cache");
                        header("Expires: 0");
                        header("Content-type: image/".strtolower($this->getMapWorkCopyType()));
                        readfile($this->getMapWorkCopyName());
                }
                exit;
        }

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ilMediaItem::read

(

)

read media item data (item id or (mob_id and nr) must be set)

Definition at line 231 of file class.ilMediaItem.php.

References $ilDB, $mob_id, $nr, $query, ilMapArea\_getMaxNr(), addMapArea(), getId(), getMobId(), getNr(), setCaption(), setFormat(), setHAlign(), setHeight(), setId(), setLocation(), setLocationType(), setMobId(), setNr(), setParameter(), setPurpose(), setTextRepresentation(), setThumbTried(), and setWidth().

Referenced by ilMediaItem().

        {
                global $ilDB;
                
                $item_id = $this->getId();
                $mob_id = $this->getMobId();
                $nr = $this->getNr();
                $query = "";
                if($item_id > 0)
                {
                        $query = "SELECT * FROM media_item WHERE id = ".
                                $ilDB->quote($this->getId(), "integer");
                }
                else if ($mob_id > 0 && $nr > 0)
                {
                        $query = "SELECT * FROM media_item WHERE mob_id = ".
                                $ilDB->quote($this->getMobId(), "integer")." ".
                                "AND nr=".$ilDB->quote($this->getNr(), "integer");
                }
                if ($query != "")
                {
                        $item_set = $ilDB->query($query);
                        $item_rec = $ilDB->fetchAssoc($item_set);

                        $this->setLocation($item_rec["location"]);
                        $this->setLocationType($item_rec["location_type"]);
                        $this->setFormat($item_rec["format"]);
                        $this->setWidth($item_rec["width"]);
                        $this->setHeight($item_rec["height"]);
                        $this->setHAlign($item_rec["halign"]);
                        $this->setCaption($item_rec["caption"]);
                        $this->setPurpose($item_rec["purpose"]);
                        $this->setNr($item_rec["nr"]);
                        $this->setMobId($item_rec["mob_id"]);
                        $this->setId($item_rec["id"]);
                        $this->setThumbTried($item_rec["tried_thumb"]);
                        $this->setTextRepresentation($item_rec["text_representation"]);

                        // get item parameter
                        $query = "SELECT * FROM mob_parameter WHERE med_item_id = ".
                                $ilDB->quote($this->getId(), "integer");
                        $par_set = $ilDB->query($query);
                        while ($par_rec = $ilDB->fetchAssoc($par_set))
                        {
                                $this->setParameter($par_rec["name"], $par_rec["value"]);
                        }

                        // get item map areas
                        $max = ilMapArea::_getMaxNr($this->getId());
                        for ($i = 1; $i <= $max; $i++)
                        {
                                $area =& new ilMapArea($this->getId(), $i);
                                $this->addMapArea($area);
                        }
                }

        }

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ilMediaItem::resetParameters

(

)

reset parameters

Definition at line 652 of file class.ilMediaItem.php.

Referenced by setParameters().

        {
                $this->parameters = array();
        }

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ilMediaItem::saveMapWorkImage

(

)

save image map work image

Definition at line 1023 of file class.ilMediaItem.php.

References getMapWorkCopyName(), and getMapWorkCopyType().

Referenced by addAreaToMapWorkCopy(), and makeMapWorkCopy().

        {
                $im_type = strtolower($this->getMapWorkCopyType());

                // save image work-copy and free memory
                switch ($im_type)
                {
                        case "gif":
                                ImageGIF($this->map_image, $this->getMapWorkCopyName());
                                break;

                        case "jpg":
                                ImageJPEG($this->map_image, $this->getMapWorkCopyName());
                                break;

                        case "png":
                                ImagePNG($this->map_image, $this->getMapWorkCopyName());
                                break;
                }

                ImageDestroy($this->map_image);
        }

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ilMediaItem::setCaption

(

$a_caption

)

set caption

Definition at line 608 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->caption = $a_caption;
        }

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ilMediaItem::setFormat

(

$a_format

)

Definition at line 483 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->format = $a_format;
        }

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ilMediaItem::setHAlign

(

$a_halign

)

set horizontal align

Definition at line 624 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->halign = $a_halign;
        }

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ilMediaItem::setHeight

(

$a_height

)

set height

Definition at line 572 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->height = $a_height;
        }

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ilMediaItem::setId

(

$a_id

)

set media item id

Parameters

int

$a_id

media item id

Definition at line 54 of file class.ilMediaItem.php.

Referenced by create(), ilMediaItem(), and read().

        {
                $this->id = $a_id;
        }

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ilMediaItem::setLocation

(

$a_location

)

Definition at line 463 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->location = $a_location;
        }

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ilMediaItem::setLocationType

(

$a_type

)

Definition at line 473 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->location_type = $a_type;
        }

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ilMediaItem::setMobId

(

$a_mob_id

)

set id of parent media object

Parameters

int

$a_mob_id

media object id

Definition at line 74 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->mob_id = $a_mob_id;
        }

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ilMediaItem::setNr

(

$a_nr

)

set number of media item within media object

Definition at line 92 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->nr = $a_nr;
        }

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ilMediaItem::setParameter	(		$a_name,
			$a_value
	)

set parameter

Parameters

string	$a_name	parameter name
string	$a_value	parameter value

Definition at line 644 of file class.ilMediaItem.php.

Referenced by extractUrlParameters(), read(), and setParameters().

        {
                $this->parameters[$a_name] = $a_value;
        }

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ilMediaItem::setParameters

(

$a_par

)

set alle parameters via parameter string (format: par1="value1", par2="value2", ...)

Parameters

string

$a_par

parameter string

Definition at line 662 of file class.ilMediaItem.php.

References ilUtil\extractParameterString(), resetParameters(), and setParameter().

        {
                $this->resetParameters();
                $par_arr = ilUtil::extractParameterString($a_par);
                if(is_array($par_arr))
                {
                        foreach($par_arr as $par => $val)
                        {
                                $this->setParameter($par, $val);
                        }
                }
        }

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ilMediaItem::setPurpose

(

$a_purpose

)

Definition at line 453 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->purpose = $a_purpose;
        }

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ilMediaItem::setTextRepresentation

(

$a_val

)

Set text representation.

Parameters

string

text representation

Definition at line 107 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->text_representation = $a_val;
        }

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ilMediaItem::setThumbTried

(

$a_tried

)

Definition at line 493 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->tried_thumb = $a_tried;
        }

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ilMediaItem::setWidth

(

$a_width

)

set width

Definition at line 556 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->width = $a_width;
        }

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ilMediaItem::update

(

)

update media item data (without map areas!)

Definition at line 176 of file class.ilMediaItem.php.

References $ilDB, $name, $query, getCaption(), getFormat(), getHAlign(), getHeight(), getId(), getLocation(), getLocationType(), getMobId(), getNr(), getParameters(), getPurpose(), getTextRepresentation(), and getWidth().

        {
                global $ilDB;

                $query = "UPDATE media_item SET ".
                        " mob_id = ".$ilDB->quote($this->getMobId(), "integer").",".
                        " purpose = ".$ilDB->quote($this->getPurpose(), "text").",".
                        " location = ".$ilDB->quote($this->getLocation(), "text").",".
                        " location_type = ".$ilDB->quote($this->getLocationType(), "text").",".
                        " format = ".$ilDB->quote($this->getFormat(), "text").",".
                        " width = ".$ilDB->quote($this->getWidth(), "text").",".
                        " height = ".$ilDB->quote($this->getHeight(), "text").",".
                        " halign = ".$ilDB->quote($this->getHAlign(), "text").",".
                        " caption = ".$ilDB->quote($this->getCaption(), "text").",".
                        " nr = ".$ilDB->quote($this->getNr(), "integer").
                        " text_representation = ".$ilDB->quote($this->getTextRepresentation(), "text").
                        " WHERE id = ".$ilDB->quote($this->getId(), "integer");
                $ilDB->manipulate($query);

                // delete mob parameters
                $query = "DELETE FROM mob_parameter WHERE med_item_id = ".
                        $ilDB->quote($this->getId(), "integer");

                // create mob parameters
                $params = $this->getParameters();
                foreach($params as $name => $value)
                {
                        $query = "INSERT INTO mob_parameter (med_item_id, name, value) VALUES ".
                                "(".$ilDB->quote($this->getId(), "integer").",".
                                $ilDB->quote($name, "text").",".
                                $ilDB->quote($value, "text").")";
                        $ilDB->manipulate($query);
                }
        }

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ilMediaItem::writeParameter	(		$a_name,
			$a_value
	)

Write parameter.

Parameters

@return

Definition at line 217 of file class.ilMediaItem.php.

References $ilDB, $query, and getId().

        {
                global $ilDB;

                $query = "INSERT INTO mob_parameter (med_item_id, name, value) VALUES ".
                        "(".$ilDB->quote($this->getId(), "integer").",".
                        $ilDB->quote($a_name, "text").",".
                        $ilDB->quote($a_value, "text").")";
                $ilDB->manipulate($query);
        }

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ilMediaItem::writeThumbTried

(

$a_tried

)

write thumbnail creation try data ("y"/"n")

Definition at line 292 of file class.ilMediaItem.php.

References $ilDB, and getId().

Referenced by getThumbnailTarget().

        {
                global $ilDB;
                
                $q = "UPDATE media_item SET tried_thumb = ".
                        $ilDB->quote($a_tried, "text").
                        " WHERE id = ".$ilDB->quote($this->getId(), "integer");
                        
                $ilDB->manipulate($q);
        }

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Field Documentation

ilMediaItem::$caption

Definition at line 25 of file class.ilMediaItem.php.

Referenced by getCaption().

ilMediaItem::$color1

Definition at line 33 of file class.ilMediaItem.php.

ilMediaItem::$color2

Definition at line 34 of file class.ilMediaItem.php.

ilMediaItem::$format

Definition at line 22 of file class.ilMediaItem.php.

Referenced by getFormat().

ilMediaItem::$halign

Definition at line 26 of file class.ilMediaItem.php.

Referenced by getHAlign().

ilMediaItem::$height

Definition at line 24 of file class.ilMediaItem.php.

Referenced by getHeight().

ilMediaItem::$id

Definition at line 18 of file class.ilMediaItem.php.

Referenced by getId().

ilMediaItem::$location

Definition at line 20 of file class.ilMediaItem.php.

Referenced by getLocation().

ilMediaItem::$location_type

Definition at line 21 of file class.ilMediaItem.php.

Referenced by getLocationType().

ilMediaItem::$map_cnt

Definition at line 31 of file class.ilMediaItem.php.

Referenced by addMapArea(), and deleteMapArea().

ilMediaItem::$map_image

Definition at line 32 of file class.ilMediaItem.php.

Referenced by getMapWorkImage().

ilMediaItem::$mapareas

Definition at line 30 of file class.ilMediaItem.php.

Referenced by getMapAreas().

ilMediaItem::$mob_id

Definition at line 28 of file class.ilMediaItem.php.

Referenced by getMobId(), and read().

ilMediaItem::$nr

Definition at line 29 of file class.ilMediaItem.php.

Referenced by deleteMapArea(), getMapArea(), getNr(), and read().

ilMediaItem::$parameters

Definition at line 27 of file class.ilMediaItem.php.

Referenced by getParameters().

ilMediaItem::$purpose

Definition at line 19 of file class.ilMediaItem.php.

Referenced by getPurpose().

ilMediaItem::$width

Definition at line 23 of file class.ilMediaItem.php.

Referenced by getWidth().

---

The documentation for this class was generated from the following file:

• Services/MediaObjects/classes/class.ilMediaItem.php