// Path: library/src/main/java/br/com/cybereagle/androidwidgets/util/ViewUtils.java
// public class ViewUtils {
// 
//     public static final boolean IS_API_11_OR_ABOVE;
// 
//     static {
//         IS_API_11_OR_ABOVE = Build.VERSION.SDK_INT >= 11;
//     }
// 
//     public static int makeSquareMeasureSpec(int widthMeasureSpec, int heightMeasureSpec) {
//         int widthMode = View.MeasureSpec.getMode(widthMeasureSpec);
//         int widthSize = View.MeasureSpec.getSize(widthMeasureSpec);
//         int heightMode = View.MeasureSpec.getMode(heightMeasureSpec);
//         int heightSize = View.MeasureSpec.getSize(heightMeasureSpec);
// 
//         int size;
//         if(widthMode == View.MeasureSpec.EXACTLY && widthSize == 0){
//             size = widthSize;
//         }
//         else if(heightMode == View.MeasureSpec.EXACTLY && heightSize == 0){
//             size = heightSize;
//         }
//         else{
//             size = widthSize < heightSize ? widthSize : heightSize;
//         }
// 
//         return View.MeasureSpec.makeMeasureSpec(size, View.MeasureSpec.EXACTLY);
//     }
// 
//     @TargetApi(Build.VERSION_CODES.HONEYCOMB)
//     public static void enableHardwareLayer(View view) {
//         if(!ViewUtils.IS_API_11_OR_ABOVE){
//             return;
//         }
// 
//         setLayer(view, View.LAYER_TYPE_HARDWARE);
//     }
// 
//     @TargetApi(Build.VERSION_CODES.HONEYCOMB)
//     public static void enableSoftwareLayer(View view){
//         if(!ViewUtils.IS_API_11_OR_ABOVE){
//             return;
//         }
// 
//         setLayer(view, View.LAYER_TYPE_SOFTWARE);
//     }
// 
//     private static void setLayer(View view, int layer) {
//         if(view.getLayerType() != layer){
//             view.setLayerType(layer, null);
//         }
//     }
// }


import android.content.Context;
import android.graphics.Point;
import android.os.Build;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.FrameLayout;
import br.com.cybereagle.androidwidgets.util.ViewUtils;
/*
 * Copyright 2013 Cyber Eagle
 *
 *    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.
 *
 * Copyright (c) 2012 Wireless Designs, LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package br.com.cybereagle.androidwidgets.view;


/**
 * PagerContainer: A layout that displays a ViewPager with its children that are outside
 * the typical pager bounds.
 *
 * To use this, wrap your ViewPager with it, set the ViewPager's width to be equal the width
 * of its child, set the ViewPager's gravity to center and make this PagerContainer larger
 * than the ViewPager. You should also set the offscreenPageLimit of the ViewPager in a way
 * that it prepares more children that is really show, so that it loads the children before
 * you reach the last children, that gives a poor effect.
 *
 */
public class PagerContainer extends FrameLayout implements ViewPager.OnPageChangeListener {

    protected ViewPager pager;
    boolean needsRedraw = false;

    protected Point center = new Point();
    protected Point initialTouch = new Point();


    public PagerContainer(Context context) {
        super(context);
        init();
    }

    public PagerContainer(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public PagerContainer(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        //Disable clipping of children so non-selected pages are visible
        setClipChildren(false);

        //Child clipping doesn't work with hardware acceleration in Android 3.x/4.x
        //You need to set this value here if using hardware acceleration in an
        // application targeted at these releases.
// Path: library/src/main/java/br/com/cybereagle/androidwidgets/util/ViewUtils.java
// public class ViewUtils {
// 
//     public static final boolean IS_API_11_OR_ABOVE;
// 
//     static {
//         IS_API_11_OR_ABOVE = Build.VERSION.SDK_INT >= 11;
//     }
// 
//     public static int makeSquareMeasureSpec(int widthMeasureSpec, int heightMeasureSpec) {
//         int widthMode = View.MeasureSpec.getMode(widthMeasureSpec);
//         int widthSize = View.MeasureSpec.getSize(widthMeasureSpec);
//         int heightMode = View.MeasureSpec.getMode(heightMeasureSpec);
//         int heightSize = View.MeasureSpec.getSize(heightMeasureSpec);
// 
//         int size;
//         if(widthMode == View.MeasureSpec.EXACTLY && widthSize == 0){
//             size = widthSize;
//         }
//         else if(heightMode == View.MeasureSpec.EXACTLY && heightSize == 0){
//             size = heightSize;
//         }
//         else{
//             size = widthSize < heightSize ? widthSize : heightSize;
//         }
// 
//         return View.MeasureSpec.makeMeasureSpec(size, View.MeasureSpec.EXACTLY);
//     }
// 
//     @TargetApi(Build.VERSION_CODES.HONEYCOMB)
//     public static void enableHardwareLayer(View view) {
//         if(!ViewUtils.IS_API_11_OR_ABOVE){
//             return;
//         }
// 
//         setLayer(view, View.LAYER_TYPE_HARDWARE);
//     }
// 
//     @TargetApi(Build.VERSION_CODES.HONEYCOMB)
//     public static void enableSoftwareLayer(View view){
//         if(!ViewUtils.IS_API_11_OR_ABOVE){
//             return;
//         }
// 
//         setLayer(view, View.LAYER_TYPE_SOFTWARE);
//     }
// 
//     private static void setLayer(View view, int layer) {
//         if(view.getLayerType() != layer){
//             view.setLayerType(layer, null);
//         }
//     }
// }


// Path: library/src/main/java/br/com/cybereagle/androidwidgets/view/PagerContainer.java
import android.content.Context;
import android.graphics.Point;
import android.os.Build;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.FrameLayout;
import br.com.cybereagle.androidwidgets.util.ViewUtils;

/*
 * Copyright 2013 Cyber Eagle
 *
 *    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.
 *
 * Copyright (c) 2012 Wireless Designs, LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package br.com.cybereagle.androidwidgets.view;


/**
 * PagerContainer: A layout that displays a ViewPager with its children that are outside
 * the typical pager bounds.
 *
 * To use this, wrap your ViewPager with it, set the ViewPager's width to be equal the width
 * of its child, set the ViewPager's gravity to center and make this PagerContainer larger
 * than the ViewPager. You should also set the offscreenPageLimit of the ViewPager in a way
 * that it prepares more children that is really show, so that it loads the children before
 * you reach the last children, that gives a poor effect.
 *
 */
public class PagerContainer extends FrameLayout implements ViewPager.OnPageChangeListener {

    protected ViewPager pager;
    boolean needsRedraw = false;

    protected Point center = new Point();
    protected Point initialTouch = new Point();


    public PagerContainer(Context context) {
        super(context);
        init();
    }

    public PagerContainer(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public PagerContainer(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        //Disable clipping of children so non-selected pages are visible
        setClipChildren(false);

        //Child clipping doesn't work with hardware acceleration in Android 3.x/4.x
        //You need to set this value here if using hardware acceleration in an
        // application targeted at these releases.
        ViewUtils.enableSoftwareLayer(this);