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

ui/gfx/size_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 "ui/gfx/size_base.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/size_f.h"
@@ skipping 73 matching lines @@
   EXPECT_EQ(Size(11, 11), ToRoundedSize(SizeF(10.5f, 10.5f)));
   EXPECT_EQ(Size(11, 11), ToRoundedSize(SizeF(10.9999f, 10.9999f)));
 
   EXPECT_EQ(Size(-10, -10), ToRoundedSize(SizeF(-10, -10)));
   EXPECT_EQ(Size(-10, -10), ToRoundedSize(SizeF(-10.0001f, -10.0001f)));
   EXPECT_EQ(Size(-10, -10), ToRoundedSize(SizeF(-10.4999f, -10.4999f)));
   EXPECT_EQ(Size(-11, -11), ToRoundedSize(SizeF(-10.5f, -10.5f)));
   EXPECT_EQ(Size(-11, -11), ToRoundedSize(SizeF(-10.9999f, -10.9999f)));
 }
 
+TEST(SizeTest, ClampSize) {
+  Size a;
+
+  a = Size(3, 5);
+  EXPECT_EQ(Size(3, 5).ToString(), a.ToString());
+  a.ClampToMin(Size(2, 4));
+  EXPECT_EQ(Size(3, 5).ToString(), a.ToString());
+  a.ClampToMin(Size(3, 5));
+  EXPECT_EQ(Size(3, 5).ToString(), a.ToString());
+  a.ClampToMin(Size(4, 2));
+  EXPECT_EQ(Size(4, 5).ToString(), a.ToString());
+  a.ClampToMin(Size(8, 10));
+  EXPECT_EQ(Size(8, 10).ToString(), a.ToString());
+
+  a.ClampToMax(Size(9, 11));
+  EXPECT_EQ(Size(8, 10).ToString(), a.ToString());
+  a.ClampToMax(Size(8, 10));
+  EXPECT_EQ(Size(8, 10).ToString(), a.ToString());
+  a.ClampToMax(Size(11, 9));
+  EXPECT_EQ(Size(8, 9).ToString(), a.ToString());
+  a.ClampToMax(Size(7, 11));
+  EXPECT_EQ(Size(7, 9).ToString(), a.ToString());
+  a.ClampToMax(Size(3, 5));
+  EXPECT_EQ(Size(3, 5).ToString(), a.ToString());
+}
+
+TEST(SizeTest, ClampSizeF) {
+  SizeF a;
+
+  a = SizeF(3.5f, 5.5f);
+  EXPECT_EQ(SizeF(3.5f, 5.5f).ToString(), a.ToString());
+  a.ClampToMin(SizeF(2.5f, 4.5f));
+  EXPECT_EQ(SizeF(3.5f, 5.5f).ToString(), a.ToString());
+  a.ClampToMin(SizeF(3.5f, 5.5f));
+  EXPECT_EQ(SizeF(3.5f, 5.5f).ToString(), a.ToString());
+  a.ClampToMin(SizeF(4.5f, 2.5f));
+  EXPECT_EQ(SizeF(4.5f, 5.5f).ToString(), a.ToString());
+  a.ClampToMin(SizeF(8.5f, 10.5f));
+  EXPECT_EQ(SizeF(8.5f, 10.5f).ToString(), a.ToString());
+
+  a.ClampToMax(SizeF(9.5f, 11.5f));
+  EXPECT_EQ(SizeF(8.5f, 10.5f).ToString(), a.ToString());
+  a.ClampToMax(SizeF(8.5f, 10.5f));
+  EXPECT_EQ(SizeF(8.5f, 10.5f).ToString(), a.ToString());
+  a.ClampToMax(SizeF(11.5f, 9.5f));
+  EXPECT_EQ(SizeF(8.5f, 9.5f).ToString(), a.ToString());
+  a.ClampToMax(SizeF(7.5f, 11.5f));
+  EXPECT_EQ(SizeF(7.5f, 9.5f).ToString(), a.ToString());
+  a.ClampToMax(SizeF(3.5f, 5.5f));
+  EXPECT_EQ(SizeF(3.5f, 5.5f).ToString(), a.ToString());
+}
+
 }  // namespace gfx