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/* <license>
* This file is part of the dis-Emi-A HaXe Library. Copyright © edA-qa mort-ora-y
* For full copyright and license information please refer to doc/license.txt.
* </license>
*/
package ui.anim;
import ui.Widget;
import ui.Action;
/*hidden*/ class __FXDescriptor implements FXDescriptor
{
public var cl : Class<Dynamic>;
public var seq : String;
public var args : Dynamic;
public function new() { }
}
/**
* An assistance class for using effects/transformations on widgets on
* the screen.
*/
class FXBuilder
{
/**
* Used to create an FX description which can be used by other functions
* in this class. This provides future compatibility to other methods of
* providing effects.
*/
static public function createActorFX( cl : Class<Dynamic>, seq : String, ?args : Dynamic ) : FXDescriptor
{
var fx = new __FXDescriptor();
fx.cl = cl;
fx.seq = seq;
fx.args = args;
return fx;
}
/**
* Ends the lifetime of a Widget with the provided FX. At the end of the
* FX the widget will have been removed from the parent.
*
* @param widget [in] the widget to apply the fx to
* @param fx [in] an FXDescriptor as created by FXBuilder
* @param completion [in] what to do when the FX is complete
*/
static public function endWidget( widget : Widget, fx : FXDescriptor, ?completion : ui.Action )
{
ASSERT_IS( fx, __FXDescriptor );
var _fx = cast( fx, __FXDescriptor );
ASSERT_NOTNULL( widget.getNative().parent );
var p = widget.getNative().parent;
p.removeChild( widget.getNative() );
//translate position (TODO: Handle scaling and non-0 origins, etc...)
var x = widget.getNative().x;
var y = widget.getNative().y;
widget.getNative().x = 0;
widget.getNative().y = 0;
var c : ui.anim.Actor = Type.createInstance(
_fx.cl,
[ DynamicUtil.merge( { item: widget }, _fx.args ) ]
);
//resize and move container
c.resize( widget.getNative().width, widget.getNative().height );
c.move( x, y );
p.addChild( c );
c.actorSetSequence( _fx.seq, Action.bind2( __endFX, c, completion ) );
}
/**
* Begins the lifetime of a Widget with the provided FX. The parent of the
* widget should already be set, and the initial sizing complete.
*/
static public function beginWidget( widget : Widget, fx : FXDescriptor, ?completion : Action )
{
ASSERT_IS( fx, __FXDescriptor );
var _fx = cast( fx, __FXDescriptor );
ASSERT_NOTNULL( widget.getNative().parent );
var p = widget.getNative().parent;
p.removeChild( widget.getNative() );
//translate position (TODO: Handle scaling and non-0 origins, etc...)
var x = widget.getNative().x;
var y = widget.getNative().y;
widget.getNative().x = 0;
widget.getNative().y = 0;
var c : ui.anim.Actor = Type.createInstance(
_fx.cl,
[ DynamicUtil.merge( { item: widget }, _fx.args ) ]
);
//resize and move container
c.resize( widget.getNative().width, widget.getNative().height );
c.move( x, y );
p.addChild( c );
c.actorSetSequence( _fx.seq, Action.bind1( __beginFX, {
parent: p,
actor: c,
completion: completion,
widget: widget,
x: x,
y: y
} ) );
}
/**
* onWidget does an FX on an existing widget. Though at the moment this does
* the same thing as beginWidget, there are some exception cases whcih will be
* implemented later which will diverge the two, thus, use this call if the widget
* is not a new one.
*/
static public function onWidget( widget : Widget, fx : FXDescriptor, ?completion : Action )
{
beginWidget( widget, fx, completion );
}
/*hidden*/ static function __beginFX( data : Dynamic )
{
data.actor.destroy();
data.parent.addChild( data.widget.getNative() );
data.widget.move( data.x, data.y );
if( data.completion != null )
Action.handle( data.widget.getNative(), data.completion );
}
/*hidden*/ static function __endFX( act : ui.anim.Actor, action : ui.Action )
{
act.parent.removeChild( act );
if( action != null )
ui.Action.handle( act.getNative(), action );
}
}
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