SWF::DisplayItem(3) User Contributed Perl Documentation SWF::DisplayItem(3)NAME
SWF::DisplayItem - SWF DisplayItem class
SYNOPSIS
use SWF::DisplayItem;
$dispitem = $movie->add($shape);
$dispitem->rotate(45);
DESCRIPTION
When you place an SWF object (one of the types that can be seen with
eyes by user) in a frame of a SWF::Movie or SWF::MovieClip, the return
value will be in a SWF::DisplayItem.
You can now modify that item in current and every following frames of
the clip where you added the SWF object.
Further it is accessible by ActionScript too. Just give the
DisplayItem a name with method setName($name) after you added the SWF
object to a SWF::Movie or SWF::MovieClip
METHODS
$displayItem->moveTo($x, $y);
Move $displayItem to ($x, $y) in global co-ordinates.
$displayItem->move($x, $y);
Displace $displayItem by ($x, $y)
$displayItem->scaleTo($x [,$y]);
Set $displayItem scale to $x in the x-direction and $y in the
y-direction. If $y is not specified, $y=$x is assumed.
$displayItem->scale($x [,$y]);
Multiply $displayItem scale by $x in the x-direction and $y in the
y-direction. If $y is not specified, $y=$x is assumed.
$displayItem->rotateTo($degrees);
Set $displayItem rotation to $degrees.
$displayItem->rotate($degrees);
Rotate $displayItem by $degrees.
$displayItem->skewX($x);
Add $x to the current x-skew.
$displayItem->skewXTo($x);
Set x-skew to $x. 1.0 is 45-degree forward slant. More is more
forward while less is more backward.
$displayItem->skewY($y);
Add $y to the current y-skew.
$displayItem->skewYTo($y);
Set y-skew to $y. 1.0 is 45-degree upward slant. More is more
upward while less is more downward.
$displayItem->setMatrix($a, $b, $c, $d, $e, $f)
Do an operation of rotating/skewing (b,c), moving (e,f) and scaling
(a,d) at once. The default initial values of an SWF::DisplayItem
object's matrix are 1.0, 0, 0, 1.0, 0, 0 . So calling setMatrix
with these defaults (setMatrix(1.0, 0, 0, 1.0, 0, 0);) will reset
results of earlier calls of SWF::DisplayItem methods (like
rotate(45) etc. etc.)
$displayItem->setDepth($depth);
Set Z-order of $displayItem to $depth.
$displayItem->setRatio($ratio);
Useful for SWF::Morph. Sets $displayItem ratio to $ratio.
$displayItem->setColorAdd($r, $g, $b [,$a]))
$displayItem->addColor($r, $g, $b [,$a]);
Add RGB color to the $displayItem's color transform. Default value
of $a is 1.0
$displayItem->setColorMult($r, $g, $b [,$a]))
$displayItem->multColor($r, $g, $b [,$a]);
Multiplies the $displayItem's color transform by the given values.
Default value of $a is 1.0
$displayItem->setName($name);
Set $displayItem's name to $name (used for targetting with
SWF::Action).
$displayItem->remove();
Remove $displayItem from the movie display list.
($x, $y) = $displayItem->getPosition(();
Returns displace coordinates of $displayitem.
$degrees = $displayItem->getRotation();
Returns rotation of $displayItem.
($x, $y) = $displayItem->getScale();
Returns scale of $displayItem in x- and y-direction.
($x, $y) = $displayItem->getSkew();
Returns x- and y-skew of $displayItem.
$depth = $displayItem->getDepth();
Returns Z-order of $displayItem.
$displayItem->setMask($level);
Sets a mask level: display items with lower or equal depth are
masked, any other display items are not masked. Use setDepth() to
control desired masking.
$displayItem->endMask()
End masking started by prior setMask() call.
$displayItem->addAction( $action, $flags )
Add $action, an object of SWF::Action class. The flags are
exported from SWF::Constants.
SWFACTION_ONLOAD
SWFACTION_ENTERFRAME
SWFACTION_UNLOAD
SWFACTION_MOUSEMOVE
SWFACTION_MOUSEDOWN
SWFACTION_MOUSEUP
SWFACTION_KEYDOWN
SWFACTION_KEYUP
SWFACTION_DATA
Using this flags you have control at which events the action will
run.
$displayItem->setBlendMode($mode)
Set an alternative blend mode instead of default alpha blend.
Possible modes are:
SWFBLEND_MODE_NULL
SWFBLEND_MODE_NORMAL
SWFBLEND_MODE_LAYER
SWFBLEND_MODE_MULT
SWFBLEND_MODE_SCREEN
SWFBLEND_MODE_DARKEN
SWFBLEND_MODE_LIGHTEN
SWFBLEND_MODE_ADD
SWFBLEND_MODE_SUB
SWFBLEND_MODE_DIFF
SWFBLEND_MODE_INV
SWFBLEND_MODE_ALPHA
SWFBLEND_MODE_ERASE
SWFBLEND_MODE_OVERLAY
SWFBLEND_MODE_HARDLIGHT
Here comes some demonstration code:
use SWF::Constants qw(:DisplayItem);
# ....
$sh=new SWF::Shape();
$fill = $sh->addFill(255, 0, 0, 255); # red
$sh->setRightFill($fill);
$sh->drawLine(440, 0);
$sh->drawLine(0, 380);
$sh->drawLine(-440, 0);
$sh->drawLine(0, -380);
#
$sh2=new SWF::Shape();
$fill2 = $sh2->addFill(0, 255, 0, 255); # green
$sh2->setRightFill($fill2);
$sh2->drawLine(240, 0);
$sh2->drawLine(0, 280);
$sh2->drawLine(-240, 0);
$sh2->drawLine(0, -280);
$di=$m->add($sh);
$di2=$m->add($sh2);
# $di2->setBlendMode( SWFBLEND_MODE_NORMAL); # would be green ( as you have expected )
$di2->setBlendMode( SWFBLEND_MODE_ADD); # y e l l o w ( surprising, a litle bit )
$displayItem->cacheAsBitmap($flag)
Set a flag (value 0 or 1) showing the character can be cached as a
bitmap. This might improve rendering speed, if the object does no
change often. This feature is available for SWF version >= 8 only.
$displayItem->flush()
Writes the SWF::DisplayItem object immediately to the blocklist.
Usually MING waits with writing a display item until a frame is
closed through a nextFrame() call, because a display items state
could be altered for the current frame. By using the flush() method
MING does not wait and writes the frame immediately. Therefore an
user can influence the swf tag order. Changing a display items
state after calling flush() takes effect in the next frame.
$matrix = $displayItem->getMatrix()
Returns an associated SWF::Matrix object.
$character = $displayItem->getCharacter()
Returns the associated SWF::Character object.
$displayItem->addFilter( $filter )
Process the DisplayItem object thru a prepared filter: an object of
SWF::Filter class, e.g. BlurFilter or DropShadowFilter. Filters
are available since player version 8.
$displayItem->setCXform( $cxform )
Process the DisplayItem object thru $cxform: a prepared color
transformation object of SWF::CXform class.
AUTHOR
Soheil Seyfaie (soheil AT users.sourceforge.net) Peter Liscovius
Albrecht Kleine
SEE ALSO
SWF, SWF::Button, SWF::Movie, SWF::MovieClip, SWF::Shape, SWF::Text,
SWF::TextField, SWF::Filter, SWF::CXform, SWF::Matrix, SWF::Action,
SWF::Morph, SWF::Character, SWF::Constants
perl v5.14.2 2010-10-10 SWF::DisplayItem(3)
