/**
* 控制缩放,旋转图标所在四个点得位置
*/
public static final int LEFT_TOP = 0;
public static final int RIGHT_TOP = 1;
public static final int RIGHT_BOTTOM = 2;
public static final int LEFT_BOTTOM = 3;
/**
* 一些默认的常量
*/
public static final int DEFAULT_FRAME_PADDING = 8;
public static final int DEFAULT_FRAME_WIDTH = 2;
public static final int DEFAULT_FRAME_COLOR = Color.WHITE;
public static final float DEFAULT_SCALE = 1.0f;
public static final float DEFAULT_DEGREE = 0;
public static final int DEFAULT_CONTROL_LOCATION = RIGHT_TOP;
public static final boolean DEFAULT_EDITABLE = true;
public static final int DEFAULT_OTHER_DRAWABLE_WIDTH = 50;
public static final int DEFAULT_OTHER_DRAWABLE_HEIGHT = 50;
/**
* 用于旋转缩放的Bitmap
*/
private Bitmap mBitmap;
/**
* SingleTouchView的中心点坐标,相对于其父类布局而言的
*/
private PointF mCenterPoint = new PointF();
/**
* View的宽度和高度,随着图片的旋转而变化(不包括控制旋转,缩放图片的宽高)
*/
private int mViewWidth, mViewHeight;
/**
* 图片的旋转角度
*/
private float mDegree = DEFAULT_DEGREE;
/**
* 图片的缩放比例
*/
private float mScale = DEFAULT_SCALE;
/**
* 用于缩放,旋转,平移的矩阵
*/
private Matrix matrix = new Matrix();
/**
* SingleTouchView距离父类布局的左间距
*/
private int mViewPaddingLeft;
/**
* SingleTouchView距离父类布局的上间距
*/
private int mViewPaddingTop;
/**
* 图片四个点坐标
*/
private Point mLTPoint;
private Point mRTPoint;
private Point mRBPoint;
private Point mLBPoint;
/**
* 用于缩放,旋转的控制点的坐标
*/
private Point mControlPoint = new Point();
/**
* 用于缩放,旋转的图标
*/
private Drawable controlDrawable;