ilMediaItem Class Reference

Class ilMediaItem. More...

Collaboration diagram for ilMediaItem:

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

Static Public Member Functions
static	_lookupLocationForMobId ($a_mob_id, $a_purpose)
	Lookup location for mob id. More...
static	_lookupMobId ($a_med_id)
	Lookup Mob ID. More...
static	_getMediaItemsOfMObId ($a_mobId, $a_purpose)
static	_getMediaItemsOfMOb (&$a_mob)
	read media items into media objects (static) More...
static	deleteAllItemsOfMob ($a_mob_id)
	Delete all items of a mob. More...
static	checkParameter ($a_par, $a_val)
	Check parameter (filter javascript related and other unsafe parameters/values) More...
static	_resolveMapAreaLinks ($a_mob_id)
	resolve internal links of all media items of a media object More...
static	_getMapAreasIntLinks ($a_mob_id)
	get all internal links of map areas of a mob More...

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

$Id$

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

Constructor & Destructor Documentation

__construct()

ilMediaItem::__construct

(

$a_id = 0

)

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

References array, read(), and setId().

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

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

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Member Function Documentation

_getMapAreasIntLinks()

static ilMediaItem::_getMapAreasIntLinks (   $a_mob_id )

static

get all internal links of map areas of a mob

Parameters

int

$a_mob_id

media object id

Definition at line 1178 of file class.ilMediaItem.php.

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

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

        {
                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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_getMediaItemsOfMOb()

static ilMediaItem::_getMediaItemsOfMOb ( &  $a_mob )

static

read media items into media objects (static)

Parameters

object

$a_mob

media object

Definition at line 376 of file class.ilMediaItem.php.

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

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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_getMediaItemsOfMObId()

static ilMediaItem::_getMediaItemsOfMObId (   $a_mobId,   $a_purpose  )

static

Definition at line 354 of file class.ilMediaItem.php.

References $ilDB, and $query.

Referenced by ilObjectFeedWriter\__construct().

        {
                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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_lookupLocationForMobId()

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 310 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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_lookupMobId()

static ilMediaItem::_lookupMobId (   $a_med_id )

static

Lookup Mob ID.

Parameters

int

$a_med_id

media item id

Definition at line 332 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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_resolveMapAreaLinks()

static ilMediaItem::_resolveMapAreaLinks (   $a_mob_id )

static

resolve internal links of all media items of a media object

Parameters

int

$a_mob_id

media object id

Definition at line 1157 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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addAreaToMapWorkCopy()

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 982 of file class.ilMediaItem.php.

References $size, 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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addMapArea()

ilMediaItem::addMapArea

(

&

$a_map_area

)

Definition at line 506 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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buildMapWorkImage()

ilMediaItem::buildMapWorkImage

(

)

build image map work image

Definition at line 1027 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":
                        case "jpeg":
                                $this->map_image = ImageCreateFromJPEG($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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checkParameter()

static ilMediaItem::checkParameter (   $a_par,   $a_val  )

static

Check parameter (filter javascript related and other unsafe parameters/values)

Parameters

string	$a_par	parameter
string	$a_val	value

Returns

bool

Definition at line 689 of file class.ilMediaItem.php.

References array.

Referenced by ilMediaAliasItem\setParameters().

        {
                // do not allow event attributes
                if (substr(strtolower(trim($a_par)), 0, 2) == "on")
                {
                        return false;
                }
                // no javascript in value
                if (is_int(strpos(strtolower($a_val), "javascript")))
                {
                        return false;
                }
                // do not allow to change the src attribute
                if (in_array(strtolower(trim($a_par)), array("src")))
                {
                        return false;
                }

                return true;
        }

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copyOriginal()

ilMediaItem::copyOriginal

(

)

Copy the orginal file.

Definition at line 878 of file class.ilMediaItem.php.

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

Referenced by makeMapWorkCopy().

        {
                global $lng;
            $this->createWorkDirectory();

                $geom = ($this->getWidth() != "" && $this->getHeight() != "")
                        ? $this->getWidth()."x".$this->getHeight()
                        : "";

                if ($this->getLocationType() != "Reference")
                {
                        ilUtil::convertImage($this->getDirectory()."/".$this->getLocation(),
                                $this->getMapWorkCopyName(),
                                $this->getMapWorkCopyType(), $geom);
                }
                else
                {
                        // first copy the external file, if necessary
                        if (!is_file($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(), $geom);
                }

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

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create()

ilMediaItem::create

(

)

create persistent media item

Definition at line 126 of file class.ilMediaItem.php.

References $ilDB, $params, $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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createWorkDirectory()

ilMediaItem::createWorkDirectory

(

)

create work directory for image map editing

Definition at line 748 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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deleteAllItemsOfMob()

static ilMediaItem::deleteAllItemsOfMob (   $a_mob_id )

static

Delete all items of a mob.

Parameters

int

$a_mob_id

media object id

Definition at line 429 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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deleteMapArea()

ilMediaItem::deleteMapArea

(

$nr

)

delete map area

Definition at line 515 of file class.ilMediaItem.php.

References $map_cnt.

        {
                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--;
                }
        }

extractUrlParameters()

ilMediaItem::extractUrlParameters

(

)

Extract parameters of special external references to parameter array.

Definition at line 1202 of file class.ilMediaItem.php.

References ilExternalMediaAnalyzer\extractUrlParameters(), 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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getCaption()

ilMediaItem::getCaption

(

)

get caption

Definition at line 620 of file class.ilMediaItem.php.

References $caption.

Referenced by create(), and update().

        {
                return $this->caption;
        }

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getDirectory()

ilMediaItem::getDirectory

(

)

get media file directory

Definition at line 805 of file class.ilMediaItem.php.

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

Referenced by copyOriginal(), and getThumbnailTarget().

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

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getFormat()

ilMediaItem::getFormat

(

)

Definition at line 491 of file class.ilMediaItem.php.

References $format.

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

        {
                return $this->format;
        }

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getHAlign()

ilMediaItem::getHAlign

(

)

get horizontal align

Definition at line 636 of file class.ilMediaItem.php.

References $halign.

Referenced by create(), and update().

        {
                return $this->halign;
        }

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getHeight()

ilMediaItem::getHeight

(

)

get height

Definition at line 567 of file class.ilMediaItem.php.

References $height.

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

        {
                return $this->height;
        }

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getId()

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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getLocation()

ilMediaItem::getLocation

(

)

Definition at line 471 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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getLocationType()

ilMediaItem::getLocationType

(

)

Definition at line 481 of file class.ilMediaItem.php.

References $location_type.

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

        {
                return $this->location_type;
        }

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getMapArea()

& ilMediaItem::getMapArea

(

$nr

)

get map area

Definition at line 535 of file class.ilMediaItem.php.

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

getMapAreas()

ilMediaItem::getMapAreas

(

)

get map areas

Definition at line 543 of file class.ilMediaItem.php.

References $mapareas.

        {
                return $this->mapareas;
        }

getMapAreasXML()

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

get xml code of media items' areas

Definition at line 1099 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];
                        
                        // highlight mode
                        $hm = "";
                        if ($area->getHighlightMode() != "")
                        {
                                $hm = ' HighlightMode="'.$area->getHighlightMode().'" ';
                                $hcl = ($area->getHighlightClass() != "")
                                        ? $area->getHighlightClass()
                                        : "Accented";
                                $hm.= 'HighlightClass="'.$hcl.'" ';
                        }
                        
                        $xml .= "<MapArea Shape=\"".$area->getShape()."\" Coords=\"".$area->getCoords()."\" ".$hm.">";
                        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>";
                                // see bug 17893 and http://stackoverflow.com/questions/4026502/xml-error-at-ampersand
                                $xml .= htmlspecialchars($area->getTitle(), ENT_QUOTES);
                                $xml .="</IntLink>";
                        }
                        else
                        {
                                $xml .= "<ExtLink Href=\"".str_replace("&", "&amp;",$area->getHref())."\" Title=\"".
                                        str_replace("&", "&amp;",$area->getExtTitle())."\">";
                                $xml .= str_replace("&", "&amp;", $area->getTitle());
                                $xml .="</ExtLink>";
                        }
                        $xml .= "</MapArea>";
                }
                return $xml;
        }

getMapWorkCopyName()

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 784 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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getMapWorkCopyType()

ilMediaItem::getMapWorkCopyType

(

)

get image type of image map work copy

Definition at line 774 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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getMapWorkImage()

& ilMediaItem::getMapWorkImage

(

)

get image map work image

Definition at line 1090 of file class.ilMediaItem.php.

References $map_image.

Referenced by addAreaToMapWorkCopy(), and makeMapWorkCopy().

        {
                return $this->map_image;
        }

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getMobId()

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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getNr()

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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getOriginalSize()

ilMediaItem::getOriginalSize

(

)

get original size

Definition at line 583 of file class.ilMediaItem.php.

References $size, ilObjMediaObject\_getDirectory(), array, ilUtil\deducibleSize(), getFormat(), ilMediaImageUtil\getImageSize(), 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();
                        }

                        include_once("./Services/MediaObjects/classes/class.ilMediaImageUtil.php");
                        $size = ilMediaImageUtil::getImageSize($loc);
                        if ($size[0] > 0 && $size[1] > 0)
                        {
                                return array("width" => $size[0], "height" => $size[1]);
                        }
                }

                return false;
        }

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getParameter()

ilMediaItem::getParameter

(

$a_name

)

get a single parameter

Definition at line 732 of file class.ilMediaItem.php.

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

getParameters()

ilMediaItem::getParameters

(

)

get all parameters (in array)

Definition at line 714 of file class.ilMediaItem.php.

References $parameters.

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

        {
                return $this->parameters;
        }

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getParameterString()

ilMediaItem::getParameterString

(

)

get all parameters (as string)

Definition at line 723 of file class.ilMediaItem.php.

References ilUtil\assembleParameterString().

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

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getPurpose()

ilMediaItem::getPurpose

(

)

Definition at line 461 of file class.ilMediaItem.php.

References $purpose.

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

        {
                return $this->purpose;
        }

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getSuffix()

ilMediaItem::getSuffix

(

)

get location suffix

Definition at line 764 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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getTextRepresentation()

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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getThumbnailDirectory()

ilMediaItem::getThumbnailDirectory

(

$a_mode = "filesystem"

)

get media file directory

Definition at line 813 of file class.ilMediaItem.php.

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

Referenced by getThumbnailTarget().

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

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getThumbnailTarget()

ilMediaItem::getThumbnailTarget

(

$a_size = ""

)

get thumbnail target

Definition at line 821 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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getThumbTried()

ilMediaItem::getThumbTried

(

)

Definition at line 501 of file class.ilMediaItem.php.

Referenced by getThumbnailTarget().

        {
                return $this->tried_thumb;
        }

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getWidth()

ilMediaItem::getWidth

(

)

get width

Definition at line 551 of file class.ilMediaItem.php.

References $width.

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

        {
                return $this->width;
        }

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getWorkDirectory()

ilMediaItem::getWorkDirectory

(

)

get work directory for image map editing

Definition at line 740 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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makeMapWorkCopy()

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 933 of file class.ilMediaItem.php.

References $lng, $size, 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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outputMapWorkCopy()

ilMediaItem::outputMapWorkCopy

(

)

output raw map work copy file

Definition at line 1012 of file class.ilMediaItem.php.

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

        {
                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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read()

ilMediaItem::read

(

)

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

Definition at line 232 of file class.ilMediaItem.php.

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

Referenced by __construct().

        {
                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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resetParameters()

ilMediaItem::resetParameters

(

)

reset parameters

Definition at line 659 of file class.ilMediaItem.php.

References array.

Referenced by setParameters().

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

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saveMapWorkImage()

ilMediaItem::saveMapWorkImage

(

)

save image map work image

Definition at line 1063 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":
                        case "jpeg":
                                ImageJPEG($this->map_image, $this->getMapWorkCopyName());
                                break;

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

                ImageDestroy($this->map_image);
        }

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setCaption()

ilMediaItem::setCaption

(

$a_caption

)

set caption

Definition at line 612 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->caption = $a_caption;
        }

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setFormat()

ilMediaItem::setFormat

(

$a_format

)

Definition at line 486 of file class.ilMediaItem.php.

References format.

Referenced by read().

        {
                $this->format = $a_format;
        }

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setHAlign()

ilMediaItem::setHAlign

(

$a_halign

)

set horizontal align

Definition at line 628 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->halign = $a_halign;
        }

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setHeight()

ilMediaItem::setHeight

(

$a_height

)

set height

Definition at line 575 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->height = $a_height;
        }

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setId()

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 __construct(), create(), and read().

        {
                $this->id = $a_id;
        }

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setLocation()

ilMediaItem::setLocation

(

$a_location

)

Definition at line 466 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->location = $a_location;
        }

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setLocationType()

ilMediaItem::setLocationType

(

$a_type

)

Definition at line 476 of file class.ilMediaItem.php.

References $a_type.

Referenced by read().

        {
                $this->location_type = $a_type;
        }

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setMobId()

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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setNr()

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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setParameter()

ilMediaItem::setParameter	(		$a_name,
			$a_value
	)

set parameter

Parameters

string	$a_name	parameter name
string	$a_value	parameter value

Definition at line 648 of file class.ilMediaItem.php.

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

        {
                if (self::checkParameter($a_name, $a_value))
                {
                        $this->parameters[$a_name] = $a_value;
                }
        }

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setParameters()

ilMediaItem::setParameters

(

$a_par

)

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

Parameters

string

$a_par

parameter string

Definition at line 669 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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setPurpose()

ilMediaItem::setPurpose

(

$a_purpose

)

Definition at line 456 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->purpose = $a_purpose;
        }

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setTextRepresentation()

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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setThumbTried()

ilMediaItem::setThumbTried

(

$a_tried

)

Definition at line 496 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->tried_thumb = $a_tried;
        }

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setWidth()

ilMediaItem::setWidth

(

$a_width

)

set width

Definition at line 559 of file class.ilMediaItem.php.

Referenced by read().

        {
                $this->width = $a_width;
        }

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update()

ilMediaItem::update

(

)

update media item data (without map areas!)

Definition at line 177 of file class.ilMediaItem.php.

References $ilDB, $params, $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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writeParameter()

ilMediaItem::writeParameter	(		$a_name,
			$a_value
	)

Write parameter.

Parameters

Definition at line 218 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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writeThumbTried()

ilMediaItem::writeThumbTried

(

$a_tried

)

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

Definition at line 293 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

$caption

ilMediaItem::$caption

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

Referenced by getCaption().

$color1

ilMediaItem::$color1

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

$color2

ilMediaItem::$color2

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

$format

ilMediaItem::$format

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

Referenced by getFormat().

$halign

ilMediaItem::$halign

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

Referenced by getHAlign().

$height

ilMediaItem::$height

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

Referenced by getHeight().

$id

ilMediaItem::$id

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

Referenced by getId().

$location

ilMediaItem::$location

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

Referenced by getLocation().

$location_type

ilMediaItem::$location_type

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

Referenced by getLocationType().

$map_cnt

ilMediaItem::$map_cnt

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

Referenced by addMapArea(), and deleteMapArea().

$map_image

ilMediaItem::$map_image

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

Referenced by getMapWorkImage().

$mapareas

ilMediaItem::$mapareas

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

Referenced by getMapAreas().

$mob_id

ilMediaItem::$mob_id

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

Referenced by getMobId().

$nr

ilMediaItem::$nr

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

Referenced by getNr().

$parameters

ilMediaItem::$parameters

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

Referenced by getParameters().

$purpose

ilMediaItem::$purpose

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

Referenced by getPurpose().

$width

ilMediaItem::$width

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

Referenced by getWidth().

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

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