/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated January 1, 2020. Replaces all prior versions.
 *
 * Copyright (c) 2013-2020, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
 * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 *****************************************************************************/
import { Bone } from "./Bone";
import { Skeleton } from "./Skeleton";
import { TransformConstraintData } from "./TransformConstraintData";
import { Updatable } from "./Updatable";
import { Vector2 } from "./Utils";
/** Stores the current pose for a transform constraint. A transform constraint adjusts the world transform of the constrained
 * bones to match that of the target bone.
 *
 * See [Transform constraints](http://esotericsoftware.com/spine-transform-constraints) in the Spine User Guide. */
export declare class TransformConstraint implements Updatable {
    /** The transform constraint's setup pose data. */
    data: TransformConstraintData;
    /** The bones that will be modified by this transform constraint. */
    bones: Array<Bone>;
    /** The target bone whose world transform will be copied to the constrained bones. */
    target: Bone;
    mixRotate: number;
    mixX: number;
    mixY: number;
    mixScaleX: number;
    mixScaleY: number;
    mixShearY: number;
    temp: Vector2;
    active: boolean;
    constructor(data: TransformConstraintData, skeleton: Skeleton);
    isActive(): boolean;
    update(): void;
    applyAbsoluteWorld(): void;
    applyRelativeWorld(): void;
    applyAbsoluteLocal(): void;
    applyRelativeLocal(): void;
}