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Refactor GestureState (internal improvements)

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Pavel fljot 2012-08-17 17:59:08 +03:00
parent 1eb3dfa9e1
commit ca5a2efbe6
1 changed files with 27 additions and 32 deletions
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59
src/org/gestouch/core/GestureState.as
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@ -1,41 +1,36 @@
package org.gestouch.core
{
import flash.utils.Dictionary;
import flash.errors.IllegalOperationError;
/**
* @author Pavel fljot
*/
public class GestureState
final public class GestureState
{
public static const IDLE:GestureState = new GestureState(1 << 0, "IDLE");
public static const POSSIBLE:GestureState = new GestureState(1 << 1, "POSSIBLE");
public static const RECOGNIZED:GestureState = new GestureState(1 << 2, "RECOGNIZED");
public static const BEGAN:GestureState = new GestureState(1 << 3, "BEGAN");
public static const CHANGED:GestureState = new GestureState(1 << 4, "CHANGED");
public static const ENDED:GestureState = new GestureState(1 << 5, "ENDED");
public static const CANCELLED:GestureState = new GestureState(1 << 6, "CANCELLED");
public static const FAILED:GestureState = new GestureState(1 << 7, "FAILED");
private static const endStatesBitMask:uint =
GestureState.CANCELLED.toUint() |
GestureState.RECOGNIZED.toUint() |
GestureState.ENDED.toUint() |
GestureState.FAILED.toUint();
public static const IDLE:GestureState = new GestureState("IDLE");
public static const POSSIBLE:GestureState = new GestureState("POSSIBLE");
public static const RECOGNIZED:GestureState = new GestureState("RECOGNIZED", true);
public static const BEGAN:GestureState = new GestureState("BEGAN");
public static const CHANGED:GestureState = new GestureState("CHANGED");
public static const ENDED:GestureState = new GestureState("ENDED", true);
public static const CANCELLED:GestureState = new GestureState("CANCELLED", true);
public static const FAILED:GestureState = new GestureState("FAILED", true);
private static var allStatesInitialized:Boolean;
private var value:uint;
private var name:String;
private var validTransitionsBitMask:uint;
private var eventType:String;
private var validTransitionStateMap:Dictionary = new Dictionary();
{
_initClass();
}
public function GestureState(value:uint, name:String)
public function GestureState(name:String, isEndState:Boolean = false)
{
if (allStatesInitialized)
{
@ -43,8 +38,9 @@ package org.gestouch.core
"Use predefined constats like GestureState.RECOGNIZED");
}
this.value = value;
this.name = name;
this.name = "GestureState." + name;
this.eventType = "gesture" + name.charAt(0).toUpperCase() + name.substr(1).toLowerCase();
this._isEndState = isEndState;
}
@ -65,36 +61,35 @@ package org.gestouch.core
public function toString():String
{
return "GestureState." + name;
}
public function toUint():uint
{
return value;
return name;
}
private function setValidNextStates(...states):void
{
var mask:uint;
for each (var state:GestureState in states)
{
mask = mask | state.value;
validTransitionStateMap[state] = true;
}
validTransitionsBitMask = mask;
}
gestouch_internal function toEventType():String
{
return eventType;
}
gestouch_internal function canTransitionTo(state:GestureState):Boolean
{
return (validTransitionsBitMask & state.value) > 0;
return (state in validTransitionStateMap);
}
private var _isEndState:Boolean = false;
gestouch_internal function get isEndState():Boolean
{
return (endStatesBitMask & value) > 0;
return _isEndState;
}
}
}