package?com.yjs.android.view.imageview;

import?android.content.Context;
import?android.content.res.TypedArray;
import?android.graphics.Bitmap;
import?android.graphics.Canvas;
import?android.graphics.Color;
import?android.graphics.Matrix;
import?android.graphics.Paint;
import?android.graphics.PorterDuff;
import?android.graphics.PorterDuffXfermode;
import?android.graphics.RectF;
import?android.graphics.drawable.BitmapDrawable;
import?android.graphics.drawable.Drawable;
import?android.net.Uri;
import?android.util.AttributeSet;
import?android.view.GestureDetector;
import?android.view.GestureDetector.SimpleOnGestureListener;
import?android.view.MotionEvent;
import?android.view.ScaleGestureDetector;
import?android.view.View;

import?com.jobs.lib_v1.device.DeviceUtil;
import?com.yjs.android.R;
import?com.yjs.android.utils.TextureSizeUtils;

/**
?*?原作者地址：http://blog.csdn.net/maosidiaoxian/article/details/50828664
?*??2018-02-01
?*?截圖組件
?*?modified?by???2019-10-30
?*?修改如下：
?*?@see?#drawRectangleOrCircle（Canvas）?采用PorterDuffXfermode來畫圖片上的遮罩。
?*?@see?#clip（）??不論是圓形框還是方形框，截圖都是方形圖片數據，同樣采用PorterDuffXfermode來截圖的，比之前
?*????????????????計算縮放比例值更可靠一樣。
?*?@see?#onTouch（View?MotionEvent）?[286行]?解決了之前一個問題，由于縮放比例是float所以計算有偏差，導致
?*?????????????????比較大小不準，會影響圖片滑動的便宜距離。
?*
?*
?*/
public?class?ClipImageView?extends?android.support.v7.widget.AppCompatImageView?implements
????????ScaleGestureDetector.OnScaleGestureListener?View.OnTouchListener?{
????private?final?Paint?mPaint;

????private?final?int?mMaskColor;
????private?int?mAspectX;
????private?int?mAspectY;
????private?final?int?mClipPadding;

????private?float?mScaleMax?=?4.0f;
????private?float?mScaleMin?=?2.0f;

????/**
?????*?初始化時的縮放比例
?????*/
????private?float?mInitScale?=?1.0f;

????/**
?????*?用于存放矩陣
?????*/
????private?final?float[]?mMatrixValues?=?new?float[9];

????/**
?????*?縮放的手勢檢查
?????*/
????private?ScaleGestureDetector?mScaleGestureDetector;
????private?final?Matrix?mScaleMatrix?=?new?Matrix（）;

????/**
?????*?用于雙擊
?????*/
????private?final?GestureDetector?mGestureDetector;
????private?boolean?isAutoScale;

????private?float?mLastX;
????private?float?mLastY;

????private?boolean?isCanDrag;
????private?int?lastPointerCount;

????private?final?RectF?mClipBorder?=?new?RectF（）;

????private?final?boolean?mDrawCircleFlag;

????public?ClipImageView（Context?context）?{
????????this（context?null）;
????}

????public?ClipImageView（Context?context?AttributeSet?attrs）?{
????????super（context?attrs）;

????????//不改變原圖的大小，從ImageView的左上角開始繪制原圖，?原圖超過ImageView的部分作裁剪處理??2018-02-02
????????setScaleType（ScaleType.MATRIX）;
????????mGestureDetector?=?new?GestureDetector（context
????????????????new?SimpleOnGestureListener（）?{
????????????????????@Override
????????????????????public?boolean?onDoubleTap（MotionEvent?e）?{
????????????????????????if?（isAutoScale）
????????????????????????????return?true;

????????????????????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-12-04?17:28??ClipImageView\
?????文件?????????635??2019-12-04?17:39??ClipImageView\attrs.xml
?????文件???????20857??2019-12-04?17:27??ClipImageView\ClipImageView.java