Class ilMapArea. More...

Public Member Functions
	ilMapArea ($a_item_id=0, $a_nr=0)
	map area
	create ()
	create persistent map area object in db
	_getMaxNr ($a_item_id)
	get maximum nr of media item (static)
	read ()
	read map area data into object (item id and nr must be set)
	update ()
	update map area
	_resolveIntLinks ($a_item_id)
	resolve internal links of an item id
	_getIntLinks ($a_item_id)
	get all internal links of a media items map areas
	setItemId ($a_item_id)
	set media item id
	getItemId ()
	get item id
	setNr ($a_nr)
	set area number
	getNr ()
	get area number
	setShape ($a_shape)
	set shape (IL_AREA_RECT, IL_AREA_CIRCLE, IL_AREA_POLY)
	getShape ()
	get shape
	setCoords ($a_coords)
	set coords of area
	getCoords ()
	get coords
	setTitle ($a_title)
	set (tooltip)title of area
	appendTitle ($a_title_str)
	append string to (tooltip) title of area
	getTitle ()
	get (tooltip) title
	setLinkType ($a_link_type)
	set link type
	getLinkType ()
	get link type
	setHref ($a_href)
	set hyper reference (external link only)
	getHref ()
	get hyper reference url (external link only)
	setExtTitle ($a_title)
	set link text (external link only)
	getExtTitle ()
	get link text (external link only)
	setTarget ($a_target)
	set link target (internal link only)
	getTarget ($a_insert_inst=false)
	get link target (internal link only)
	setType ($a_type)
	set link type (internal link only)
	getType ()
	get link type (internal link only)
	setTargetFrame ($a_target_frame)
	set link target frame (internal link only)
	getTargetFrame ()
	get link target frame (internal link only)
	draw (&$a_image, $a_col1, $a_col2, $a_close_poly=true, $a_x_ratio=1, $a_y_ratio=1)
	draw image to
	drawLine (&$im, $x1, $y1, $x2, $y2, $c1, $c2)
	draws an outlined two color line in an image
	drawRect (&$im, $coords, $c1, $c2, $a_x_ratio=1, $a_y_ratio=1)
	draws an outlined two color rectangle
	drawPoly (&$im, $coords, $c1, $c2, $closed, $a_x_ratio=1, $a_y_ratio=1)
	draws an outlined two color polygon
	drawCircle (&$im, $coords, $c1, $c2, $a_x_ratio=1, $a_y_ratio=1)
	draws an outlined two colored circle
	countCoords ($c)
	count the number of coordinates (x,y) in a coordinate string (format: "x1,y1,x2,y2,x3,y3,...")
Data Fields
	$ilias
	$item_id
	$nr
	$shape
	$coords
	$title
	$linktype
	$xl_title
	$xl_href
	$il_target
	$il_type
	$il_target_frame

Detailed Description

Class ilMapArea.

Map Area of an Image Map, subobject of Media Item

Author:: Alex Killing <alex.killing@gmx.de>

Version:

Id:: class.ilMapArea.php 15081 2007-10-24 09:40:40Z akill

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

Member Function Documentation

ilMapArea::_getIntLinks ( $ a_item_id )

get all internal links of a media items map areas

Parameters:

int

$a_item_id media item id

Definition at line 214 of file class.ilMapArea.php.

Referenced by ilMediaItem::_getMapAreasIntLinks(), and ilObjMediaObject::getLinkedMediaObjects().

        {
                global $ilDB;
                
                $q = "SELECT * FROM map_area WHERE item_id=".$ilDB->quote($a_item_id);
                $area_set = $this->ilias->db->query($q);

                $links = array();

                while ($area_rec = $area_set->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $target = $area_rec["target"];
                        $type = $area_rec["type"];
                        $targetframe = $area_rec["target_frame"];

                        if (($area_rec["link_type"] == IL_INT_LINK) && (is_int(strpos($target, "__"))))
                        {
                                $links[$target.":".$type.":".$targetframe] =
                                        array("Target" => $target, "Type" => $type,
                                                "TargetFrame" => $targetframe);
                        }
                }
                return $links;
        }

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ilMapArea::_getMaxNr ( $ a_item_id )

get maximum nr of media item (static)

Parameters:

int

$a_item_id item id

Returns:: int maximum nr

Definition at line 121 of file class.ilMapArea.php.

Referenced by ilMediaItem::_getMediaItemsOfMOb(), ilObjMediaObjectGUI::deleteAreasObject(), ilObjMediaObjectGUI::editMapAreasObject(), ilMediaItem::read(), ilObjMediaObjectGUI::saveAreaObject(), and ilObjMediaObjectGUI::updateAreasObject().

        {
                global $ilDB;
                
                $q = "SELECT max(nr) AS max_nr FROM map_area WHERE item_id=".
                        $ilDB->quote($a_item_id);
                $max_set = $this->ilias->db->query($q);
                $max_rec = $max_set->fetchRow(DB_FETCHMODE_ASSOC);

                return $max_rec["max_nr"];
        }

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ilMapArea::_resolveIntLinks ( $ a_item_id )

resolve internal links of an item id

Definition at line 182 of file class.ilMapArea.php.

References $item_id, $nr, and ilInternalLink::_getIdForImportId().

Referenced by ilMediaItem::_resolveMapAreaLinks().

        {
                global $ilDB;

//echo "maparea::resolve<br>";
                $q = "SELECT * FROM map_area WHERE item_id=".$ilDB->quote($a_item_id);
                $area_set = $this->ilias->db->query($q);
                while ($area_rec = $area_set->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $target = $area_rec["target"];
                        $type = $area_rec["type"];
                        $item_id = $area_rec["item_id"];
                        $nr = $area_rec["nr"];

                        if (($area_rec["link_type"] == IL_INT_LINK) && (!is_int(strpos($target, "__"))))
                        {
                                $new_target = ilInternalLink::_getIdForImportId($type, $target);
                                if ($new_target !== false)
                                {
                                        $query = "UPDATE map_area SET target= ".$ilDB->quote($new_target)." ".
                                                "WHERE item_id= ".$ilDB->quote($item_id)." AND nr=".$ilDB->quote($nr);
                                        $this->ilias->db->query($query);
                                }
                        }
                }
        }

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ilMapArea::appendTitle ( $ a_title_str )

append string to (tooltip) title of area

Parameters:

string

$a_title_str title string

Definition at line 334 of file class.ilMapArea.php.

        {
                $this->title.= $a_title_str;
        }

ilMapArea::countCoords ( $ c )

count the number of coordinates (x,y) in a coordinate string (format: "x1,y1,x2,y2,x3,y3,...")

Parameters:

string

$c coordinate string

Definition at line 614 of file class.ilMapArea.php.

Referenced by ilObjMediaObjectGUI::addAreaObject(), drawPoly(), ilObjMediaObjectGUI::editMapArea(), and ilObjMediaObjectGUI::setShapeObject().

        {
                if ($c == "")
                {
                        return 0;
                }
                else
                {
                        $coord_array = explode(",", $c);
                        return (count($coord_array) / 2);
                }
        }

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ilMapArea::create ( )

create persistent map area object in db

Definition at line 94 of file class.ilMapArea.php.

References getCoords(), getHref(), getItemId(), getLinkType(), getNr(), getShape(), getTarget(), getTargetFrame(), getTitle(), and getType().

        {
                global $ilDB;

                $q = "INSERT INTO map_area (item_id, nr, shape, ".
                        "coords, link_type, title, href, target, type, target_frame) ".
                        " VALUES (".
                        $ilDB->quote($this->getItemId()).",".
                        $ilDB->quote($this->getNr()).",".
                        $ilDB->quote($this->getShape()).",".
                        $ilDB->quote($this->getCoords()).",".
                        $ilDB->quote($this->getLinkType()).",".
                        $ilDB->quote($this->getTitle()).",".
                        $ilDB->quote($this->getHref()).",".
                        $ilDB->quote($this->getTarget()).",".
                        $ilDB->quote($this->getType()).",".
                        $ilDB->quote($this->getTargetFrame()).")";
                $this->ilias->db->query($q);
        }

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ilMapArea::draw	(	&$	a_image,
		$	a_col1,
		$	a_col2,
		$	a_close_poly = `true`,
		$	a_x_ratio = `1`,
		$	a_y_ratio = `1`
	)

draw image to

Parameters:

boolean

$a_close_poly close polygon

Definition at line 484 of file class.ilMapArea.php.

References drawCircle(), drawPoly(), drawRect(), getCoords(), and getShape().

        {
                switch ($this->getShape())
                {
                        case "Rect" :
                                $this->drawRect($a_image, $this->getCoords(), $a_col1, $a_col2,
                                        $a_x_ratio, $a_y_ratio);
                                break;

                        case "Circle" :
                                $this->drawCircle($a_image, $this->getCoords(), $a_col1, $a_col2,
                                        $a_x_ratio, $a_y_ratio);
                                break;

                        case "Poly" :
                                $this->drawPoly($a_image, $this->getCoords(), $a_col1, $a_col2, $a_close_poly,
                                        $a_x_ratio, $a_y_ratio);
                                break;
                }
        }

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ilMapArea::drawCircle	(	&$	im,
		$	coords,
		$	c1,
		$	c2,
		$	a_x_ratio = `1`,
		$	a_y_ratio = `1`
	)

draws an outlined two colored circle

Parameters:

	int	$im image identifier as returned by ImageCreateFromGIF()
	string	$coords coordinate string, format : "x,y,r" with (x,y) as center point and r as radius
	int	$c1 color identifier 1
	int	$c3 color identifier 2

Definition at line 598 of file class.ilMapArea.php.

References $coords.

Referenced by draw().

        {
                $c = explode(",", $coords);
                imagearc($im, $c[0] / $a_x_ratio, $c[1] / $a_y_ratio,
                        ($c[2]+1)*2 / $a_x_ratio, ($c[2]+1)*2 / $a_y_ratio, 1, 360, $c1);
                imagearc($im, $c[0] / $a_x_ratio, $c[1] / $a_y_ratio,
                        ($c[2]-1)*2 / $a_x_ratio, ($c[2]-1)*2 / $a_y_ratio, 1, 360, $c1);
                imagearc($im, $c[0] / $a_x_ratio, $c[1] / $a_y_ratio,
                        $c[2]*2 / $a_x_ratio, $c[2]*2 / $a_y_ratio, 1, 360, $c2);
        }

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ilMapArea::drawLine	(	&$	im,
		$	x1,
		$	y1,
		$	x2,
		$	y2,
		$	c1,
		$	c2
	)

draws an outlined two color line in an image

Parameters:

	int	$im image identifier as returned by ImageCreateFromGIF() etc.
	int	$x1 x-coordinate of starting point
	int	$y1 y-coordinate of starting point
	int	$x2 x-coordinate of ending point
	int	$y2 y-coordinate of ending point
	int	$c1 color identifier 1
	int	$c2 color identifier 2

Definition at line 517 of file class.ilMapArea.php.

Referenced by drawPoly(), and drawRect().

        {
                imageline($im, $x1+1, $y1, $x2+1, $y2, $c1);
                imageline($im, $x1-1, $y1, $x2-1, $y2, $c1);
                imageline($im, $x1, $y1+1, $x2, $y2+1, $c1);
                imageline($im, $x1, $y1-1, $x2, $y2-1, $c1);
                imageline($im, $x1, $y1, $x2, $y2, $c2);
        }

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ilMapArea::drawPoly	(	&$	im,
		$	coords,
		$	c1,
		$	c2,
		$	closed,
		$	a_x_ratio = `1`,
		$	a_y_ratio = `1`
	)

draws an outlined two color polygon

Parameters:

	int	$im image identifier as returned by ImageCreateFromGIF() etc.
	string	$coords coordinate string, format : "x1,y1,x2,y2,..." with every (x,y) pair is an ending point of a line of the polygon
	int	$c1 color identifier 1
	int	$c3 color identifier 2
	boolean	$closed true: the first and the last point will be connected with a line

Definition at line 560 of file class.ilMapArea.php.

References $coords, countCoords(), and drawLine().

Referenced by draw().

        {
                if ($closed)
                {
                        $p = 0;
                }
                else
                {
                        $p = 1;
                }

                $anz = ilMapArea::countCoords($coords);

                if ($anz < (3 - $p))
                {
                        return;
                }

                $c = explode(",", $coords);

                for($i=0; $i<$anz-$p; $i++)
                {
                        $this->drawLine($im, $c[$i*2] / $a_x_ratio, $c[$i*2+1] / $a_y_ratio,
                                $c[($i*2+2)%(2*$anz)] / $a_x_ratio,
                                $c[($i*2+3)%(2*$anz)] / $a_y_ratio, $c1, $c2);
                }
        }

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ilMapArea::drawRect	(	&$	im,
		$	coords,
		$	c1,
		$	c2,
		$	a_x_ratio = `1`,
		$	a_y_ratio = `1`
	)

draws an outlined two color rectangle

Parameters:

	int	$im image identifier as returned by ImageCreateFromGIF() etc.
	string	$coords coordinate string, format : "x1,y1,x2,y2" with (x1,y1) is top left and (x2,y2) is bottom right point of the rectangle
	int	$c1 color identifier 1
	int	$c2 color identifier 2

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

References $coords, and drawLine().

Referenced by draw().

        {
                $coord=explode(",", $coords);

                $this->drawLine($im, $coord[0] / $a_x_ratio, $coord[1] / $a_y_ratio,
                        $coord[0] / $a_x_ratio, $coord[3] / $a_y_ratio, $c1, $c2);
                $this->drawLine($im, $coord[0] / $a_x_ratio, $coord[3] / $a_y_ratio,
                        $coord[2] / $a_x_ratio, $coord[3] / $a_y_ratio, $c1, $c2);
                $this->drawLine($im, $coord[2] / $a_x_ratio, $coord[3] / $a_y_ratio,
                        $coord[2] / $a_x_ratio, $coord[1] / $a_y_ratio, $c1, $c2);
                $this->drawLine($im, $coord[2] / $a_x_ratio, $coord[1] / $a_y_ratio,
                        $coord[0] / $a_x_ratio, $coord[1] / $a_y_ratio, $c1, $c2);
        }

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ilMapArea::getCoords ( )

get coords

Returns:: string coords (comma separated integers)

Definition at line 314 of file class.ilMapArea.php.

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

        {
                return $this->coords;
        }

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ilMapArea::getExtTitle ( )

get link text (external link only)

Returns:: string link text

Definition at line 404 of file class.ilMapArea.php.

        {
                return $this->xl_title;
        }

ilMapArea::getHref ( )

get hyper reference url (external link only)

Parameters:

string

hyper ref url

Definition at line 384 of file class.ilMapArea.php.

Referenced by create(), and update().

        {
                return $this->xl_href;
        }

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ilMapArea::getItemId ( )

get item id

Returns:: int media item id

Definition at line 254 of file class.ilMapArea.php.

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

        {
                return $this->item_id;
        }

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ilMapArea::getLinkType ( )

get link type

Returns:: int link type (IL_INT_LINK, IL_EXT_LINK)

Definition at line 364 of file class.ilMapArea.php.

Referenced by create(), and update().

        {
                return $this->linktype;
        }

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ilMapArea::getNr ( )

get area number

Returns:: int number (of area within parent media object)

Definition at line 274 of file class.ilMapArea.php.

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

        {
                return $this->nr;
        }

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ilMapArea::getShape ( )

get shape

Returns:: string (IL_AREA_RECT, IL_AREA_CIRCLE, IL_AREA_POLY)

Definition at line 294 of file class.ilMapArea.php.

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

        {
                return $this->shape;
        }

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ilMapArea::getTarget ( $ a_insert_inst = false )

get link target (internal link only)

Returns:: string link target

Definition at line 424 of file class.ilMapArea.php.

Referenced by create(), and update().

        {
                $target = $this->il_target;

                if ((substr($target, 0, 4) == "il__") && $a_insert_inst)
                {
                        $target = "il_".IL_INST_ID."_".substr($target, 4, strlen($target) - 4);
                }

                return $target;
        }

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ilMapArea::getTargetFrame ( )

get link target frame (internal link only)

Returns:: string link target frame target frame (IL_TF_MEDIA | IL_TF_FAQ | IL_TF_GLOSSARY | IL_TF_NEW)

Definition at line 474 of file class.ilMapArea.php.

Referenced by create(), and update().

        {
                return $this->il_target_frame;
        }

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ilMapArea::getTitle ( )

get (tooltip) title

Returns:: string title

Definition at line 344 of file class.ilMapArea.php.

Referenced by create(), and update().

        {
                return $this->title;
        }

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ilMapArea::getType ( )

get link type (internal link only)

Returns:: string (IL_LT_STRUCTURE | IL_LT_PAGE | IL_LT_MEDIA | IL_LT_GLITEM)

Definition at line 452 of file class.ilMapArea.php.

Referenced by create(), and update().

        {
                return $this->il_type;
        }

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ilMapArea::ilMapArea	(	$	a_item_id = `0`,
		$	a_nr = `0`
	)

map area

Parameters:

	int	$a_item_id parent media item id
	int	$a_nr map area number within media item

Definition at line 76 of file class.ilMapArea.php.

References $ilias, read(), setItemId(), and setNr().

        {
                global $ilias;

                $this->ilias =& $ilias;
                $this->title = "";

                if ($a_item_id !=0 && $a_nr != 0)
                {
                        $this->setItemId($a_item_id);
                        $this->setNr($a_nr);
                        $this->read();
                }
        }

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ilMapArea::read ( )

read map area data into object (item id and nr must be set)

Definition at line 136 of file class.ilMapArea.php.

References getItemId(), getNr(), setCoords(), setHref(), setLinkType(), setNr(), setShape(), setTarget(), setTargetFrame(), setTitle(), and setType().

Referenced by ilMapArea().

        {
                global $ilDB;
                
                $q = "SELECT * FROM map_area WHERE item_id=".
                        $ilDB->quote($this->getItemId()).
                        " AND nr=".$ilDB->quote($this->getNr());
                $area_set = $this->ilias->db->query($q);
                $area_rec = $area_set->fetchRow(DB_FETCHMODE_ASSOC);

                $this->setShape($area_rec["shape"]);
//echo $area_rec["Shape"];
                $this->setNr($area_rec["nr"]);
                $this->setCoords($area_rec["coords"]);
                $this->setLinkType($area_rec["link_type"]);
                $this->setTitle($area_rec["title"]);
                $this->setHref($area_rec["href"]);
                $this->setTarget($area_rec["target"]);
                $this->setType($area_rec["type"]);
                $this->setTargetFrame($area_rec["target_frame"]);
        }

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ilMapArea::setCoords ( $ a_coords )

set coords of area

Parameters:

string

$a_coords coords (comma separated integers)

Definition at line 304 of file class.ilMapArea.php.

Referenced by read().

        {
                $this->coords = $a_coords;
        }

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ilMapArea::setExtTitle ( $ a_title )

set link text (external link only)

Parameters:

string

$a_title link text

Definition at line 394 of file class.ilMapArea.php.

        {
                $this->xl_title = $a_title;
        }

ilMapArea::setHref ( $ a_href )

set hyper reference (external link only)

Parameters:

string

$a_href hyper ref url

Definition at line 374 of file class.ilMapArea.php.

Referenced by read().

        {
                $this->xl_href = $a_href;
        }

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ilMapArea::setItemId ( $ a_item_id )

set media item id

Parameters:

int

$a_item_id media item id

Definition at line 244 of file class.ilMapArea.php.

Referenced by ilMapArea().

        {
                $this->item_id = $a_item_id;
        }

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ilMapArea::setLinkType ( $ a_link_type )

set link type

Parameters:

string

$a_linktype link type (IL_INT_LINK, IL_EXT_LINK)

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

Referenced by read().

        {
                $this->linktype = $a_link_type;
        }

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ilMapArea::setNr ( $ a_nr )

set area number

Parameters:

int

$a_nr number (of area within parent media object)

Definition at line 264 of file class.ilMapArea.php.

Referenced by ilMapArea(), and read().

        {
                $this->nr = $a_nr;
        }

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ilMapArea::setShape ( $ a_shape )

set shape (IL_AREA_RECT, IL_AREA_CIRCLE, IL_AREA_POLY)

Parameters:

string

$a_shape shape of map area

Definition at line 284 of file class.ilMapArea.php.

Referenced by read().

        {
                $this->shape = $a_shape;
        }

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ilMapArea::setTarget ( $ a_target )

set link target (internal link only)

Parameters:

string

$a_target link target (e.g. "il__pg_23")

Definition at line 414 of file class.ilMapArea.php.

Referenced by read().

        {
                $this->il_target = $a_target;
        }

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ilMapArea::setTargetFrame ( $ a_target_frame )

set link target frame (internal link only)

Parameters:

string

$a_target_frame target frame (IL_TF_MEDIA | IL_TF_FAQ | IL_TF_GLOSSARY | IL_TF_NEW)

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

Referenced by read().

        {
                $this->il_target_frame = $a_target_frame;
        }

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ilMapArea::setTitle ( $ a_title )

set (tooltip)title of area

Parameters:

string

$a_title title

Definition at line 324 of file class.ilMapArea.php.

Referenced by read().

        {
                $this->title = $a_title;
        }

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ilMapArea::setType ( $ a_type )

set link type (internal link only)

Parameters:

string

$a_type link type (IL_LT_STRUCTURE | IL_LT_PAGE | IL_LT_MEDIA | IL_LT_GLITEM)

Definition at line 442 of file class.ilMapArea.php.

Referenced by read().

        {
                $this->il_type = $a_type;
        }

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ilMapArea::update ( )

update map area

Definition at line 161 of file class.ilMapArea.php.

References getCoords(), getHref(), getItemId(), getLinkType(), getNr(), getShape(), getTarget(), getTargetFrame(), getTitle(), and getType().

        {
                global $ilDB;

                $q = "UPDATE map_area SET shape = ".$ilDB->quote($this->getShape()).
                        ", coords = ".$ilDB->quote($this->getCoords()).
                        ", link_type = ".$ilDB->quote($this->getLinkType()).
                        ", title = ".$ilDB->quote($this->getTitle()).
                        ", href = ".$ilDB->quote($this->getHref()).
                        ", target = ".$ilDB->quote($this->getTarget()).
                        ", type = ".$ilDB->quote($this->getType()).
                        ", target_frame = ".$ilDB->quote($this->getTargetFrame()).
                        " WHERE item_id = ".$ilDB->quote($this->getItemId())." AND nr = ".
                                $ilDB->quote($this->getNr());
                $this->ilias->db->query($q);
//echo "<br>$q<br>";
        }

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Field Documentation

ilMapArea::$coords

Definition at line 60 of file class.ilMapArea.php.

Referenced by drawCircle(), drawPoly(), and drawRect().

ilMapArea::$il_target

Definition at line 65 of file class.ilMapArea.php.

ilMapArea::$il_target_frame

Definition at line 67 of file class.ilMapArea.php.

ilMapArea::$il_type

Definition at line 66 of file class.ilMapArea.php.

ilMapArea::$ilias

Definition at line 56 of file class.ilMapArea.php.

Referenced by ilMapArea().

ilMapArea::$item_id

Definition at line 57 of file class.ilMapArea.php.

Referenced by _resolveIntLinks().

ilMapArea::$linktype

Definition at line 62 of file class.ilMapArea.php.

ilMapArea::$nr

Definition at line 58 of file class.ilMapArea.php.

Referenced by _resolveIntLinks().

ilMapArea::$shape

Definition at line 59 of file class.ilMapArea.php.

ilMapArea::$title

Definition at line 61 of file class.ilMapArea.php.

ilMapArea::$xl_href

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

ilMapArea::$xl_title

Definition at line 63 of file class.ilMapArea.php.

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

Services/MediaObjects/classes/class.ilMapArea.php

ilMapArea Class Reference [Services/MediaObjects]

Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

Field Documentation

ilMapArea Class Reference
[Services/MediaObjects]