ui: Add methods to clamp Sizes, Points, and Vectors from above or below.

ui/gfx/vector3d_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/vector3d_f.h"
 
 #include <cmath>
 #include <limits>
@@ skipping 194 matching lines @@
     { Vector3dF(0, -1, 1), Vector3dF(1, 0, 0), Vector3dF(1, 1, 1) }
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
     Vector3dF actual = gfx::CrossProduct(tests[i].input1, tests[i].input2);
     EXPECT_EQ(tests[i].expected.ToString(), actual.ToString());
   }
 
 }
 
+TEST(Vector3dFTest, ClampVector3dF) {
+  Vector3dF a;
+
+  a = Vector3dF(3.5f, 5.5f, 7.5f);
+  EXPECT_EQ(Vector3dF(3.5f, 5.5f, 7.5f).ToString(), a.ToString());
+  a.ClampToMin(Vector3dF(2, 4.5f, 6.5f));
+  EXPECT_EQ(Vector3dF(3.5f, 5.5f, 7.5f).ToString(), a.ToString());
+  a.ClampToMin(Vector3dF(3.5f, 5.5f, 7.5f));
+  EXPECT_EQ(Vector3dF(3.5f, 5.5f, 7.5f).ToString(), a.ToString());
+  a.ClampToMin(Vector3dF(4.5f, 2, 6.5f));
+  EXPECT_EQ(Vector3dF(4.5f, 5.5f, 7.5f).ToString(), a.ToString());
+  a.ClampToMin(Vector3dF(3.5f, 6.5f, 6.5f));
+  EXPECT_EQ(Vector3dF(4.5f, 6.5f, 7.5f).ToString(), a.ToString());
+  a.ClampToMin(Vector3dF(3.5f, 5.5f, 8.5f));
+  EXPECT_EQ(Vector3dF(4.5f, 6.5f, 8.5f).ToString(), a.ToString());
+  a.ClampToMin(Vector3dF(8.5f, 10.5f, 12.5f));
+  EXPECT_EQ(Vector3dF(8.5f, 10.5f, 12.5f).ToString(), a.ToString());
+
+  a.ClampToMax(Vector3dF(9.5f, 11.5f, 13.5f));
+  EXPECT_EQ(Vector3dF(8.5f, 10.5f, 12.5f).ToString(), a.ToString());
+  a.ClampToMax(Vector3dF(8.5f, 10.5f, 12.5f));
+  EXPECT_EQ(Vector3dF(8.5f, 10.5f, 12.5f).ToString(), a.ToString());
+  a.ClampToMax(Vector3dF(7.5f, 11.5f, 13.5f));
+  EXPECT_EQ(Vector3dF(7.5f, 10.5f, 12.5f).ToString(), a.ToString());
+  a.ClampToMax(Vector3dF(9.5f, 9.5f, 13.5f));
+  EXPECT_EQ(Vector3dF(7.5f, 9.5f, 12.5f).ToString(), a.ToString());
+  a.ClampToMax(Vector3dF(9.5f, 11.5f, 11.5f));
+  EXPECT_EQ(Vector3dF(7.5f, 9.5f, 11.5f).ToString(), a.ToString());
+  a.ClampToMax(Vector3dF(3.5f, 5.5f, 7.5f));
+  EXPECT_EQ(Vector3dF(3.5f, 5.5f, 7.5f).ToString(), a.ToString());
+}
+
 }  // namespace gfx