ADD week 5

02-Easy5/E5/sources/com/google/android/material/internal/DescendantOffsetUtils.java

@@ -0,0 +1,53 @@
+package com.google.android.material.internal;
+
+import android.graphics.Matrix;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+
+/* loaded from: classes.dex */
+public class DescendantOffsetUtils {
+    private static final ThreadLocal<Matrix> matrix = new ThreadLocal<>();
+    private static final ThreadLocal<RectF> rectF = new ThreadLocal<>();
+
+    public static void offsetDescendantRect(ViewGroup viewGroup, View view, Rect rect) {
+        ThreadLocal<Matrix> threadLocal = matrix;
+        Matrix matrix2 = threadLocal.get();
+        if (matrix2 == null) {
+            matrix2 = new Matrix();
+            threadLocal.set(matrix2);
+        } else {
+            matrix2.reset();
+        }
+        offsetDescendantMatrix(viewGroup, view, matrix2);
+        ThreadLocal<RectF> threadLocal2 = rectF;
+        RectF rectF2 = threadLocal2.get();
+        if (rectF2 == null) {
+            rectF2 = new RectF();
+            threadLocal2.set(rectF2);
+        }
+        rectF2.set(rect);
+        matrix2.mapRect(rectF2);
+        rect.set((int) (rectF2.left + 0.5f), (int) (rectF2.top + 0.5f), (int) (rectF2.right + 0.5f), (int) (rectF2.bottom + 0.5f));
+    }
+
+    public static void getDescendantRect(ViewGroup viewGroup, View view, Rect rect) {
+        rect.set(0, 0, view.getWidth(), view.getHeight());
+        offsetDescendantRect(viewGroup, view, rect);
+    }
+
+    private static void offsetDescendantMatrix(ViewParent viewParent, View view, Matrix matrix2) {
+        Object parent = view.getParent();
+        if ((parent instanceof View) && parent != viewParent) {
+            offsetDescendantMatrix(viewParent, (View) parent, matrix2);
+            matrix2.preTranslate(-r0.getScrollX(), -r0.getScrollY());
+        }
+        matrix2.preTranslate(view.getLeft(), view.getTop());
+        if (view.getMatrix().isIdentity()) {
+            return;
+        }
+        matrix2.preConcat(view.getMatrix());
+    }
+}