/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <animation/SAnimation.h>
SNSBEGIN
/**
 * An animation that controls the scale of an object. You can specify the point
 * to use for the center of scaling.
 *
 */
class SOUI_EXP SScaleAnimation : public SAnimation {
    DEF_SOBJECT(SAnimation, L"scale")

  private:
    float mFromX;
    float mToX;
    float mFromY;
    float mToY;

	SValueDescription mPivotXDesc;
	SValueDescription mPivotYDesc;

    float mPivotX;
    float mPivotY;

  public:
    SScaleAnimation();

    /**
     * Constructor to use when building a ScaleAnimation from code
     *
     * @param fromX Horizontal scaling factor to apply at the start of the
     *        animation
     * @param toX Horizontal scaling factor to apply at the end of the animation
     * @param fromY Vertical scaling factor to apply at the start of the
     *        animation
     * @param toY Vertical scaling factor to apply at the end of the animation
     */
  public:
    /**
     * Constructor to use when building a ScaleAnimation from code
     *
     * @param fromX Horizontal scaling factor to apply at the start of the
     *        animation
     * @param toX Horizontal scaling factor to apply at the end of the animation
     * @param fromY Vertical scaling factor to apply at the start of the
     *        animation
     * @param toY Vertical scaling factor to apply at the end of the animation
     * @param pivotXType Specifies how pivotXValue should be interpreted. One of
     *        Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or
     *        Animation.RELATIVE_TO_PARENT.
     * @param pivotXValue The X coordinate of the point about which the object
     *        is being scaled, specified as an absolute number where 0 is the
     *        left edge. (This point remains fixed while the object changes
     *        size.) This value can either be an absolute number if pivotXType
     *        is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
     * @param pivotYType Specifies how pivotYValue should be interpreted. One of
     *        Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or
     *        Animation.RELATIVE_TO_PARENT.
     * @param pivotYValue The Y coordinate of the point about which the object
     *        is being scaled, specified as an absolute number where 0 is the
     *        top edge. (This point remains fixed while the object changes
     *        size.) This value can either be an absolute number if pivotYType
     *        is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
     */
    void init(float fromX, float toX, float fromY, float toY, const SValueDescription & pivotX, const SValueDescription & pivotY);

  protected:
    STDMETHOD_(void, applyTransformation)
    (THIS_ float interpolatedTime, ITransformation *t) OVERRIDE;
    STDMETHOD_(void, copy)(THIS_ const IAnimation *src) OVERRIDE;

  public:
    STDMETHOD_(void, initialize)
    (THIS_ int width, int height, int parentWidth, int parentHeight,int nScale) OVERRIDE;

    SOUI_ATTRS_BEGIN()
        ATTR_FLOAT(L"fromXScale", mFromX, FALSE)
        ATTR_FLOAT(L"toXScale", mToX, FALSE)
        ATTR_FLOAT(L"fromYScale", mFromY, FALSE)
        ATTR_FLOAT(L"toYScale", mToY, FALSE)
        ATTR_VALUE_DESC(L"pivotX", mPivotXDesc)
        ATTR_VALUE_DESC(L"pivotY", mPivotYDesc)
    SOUI_ATTRS_END()
};

SNSEND