/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "gtest/gtest.h"
#include "mozilla/gfx/Matrix.h"

using namespace mozilla;
using namespace mozilla::gfx;

static Rect NudgedToInt(const Rect& aRect) {
  Rect r(aRect);
  r.NudgeToIntegers();
  return r;
}

TEST(Matrix, TransformAndClipRect)
{
  Rect c(100, 100, 100, 100);
  Matrix4x4 m;
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(50, 50, 20, 20), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(250, 50, 20, 20), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(250, 250, 20, 20), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(50, 250, 20, 20), c).IsEmpty());

  EXPECT_TRUE(m.TransformAndClipBounds(Rect(50, 50, 100, 20), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(150, 50, 100, 20), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(50, 250, 100, 20), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(150, 250, 100, 20), c).IsEmpty());

  EXPECT_TRUE(m.TransformAndClipBounds(Rect(50, 50, 20, 100), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(50, 150, 20, 100), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(250, 50, 20, 100), c).IsEmpty());
  EXPECT_TRUE(m.TransformAndClipBounds(Rect(250, 150, 20, 100), c).IsEmpty());

  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(50, 50, 100, 100), c))
                  .IsEqualInterior(Rect(100, 100, 50, 50)));
  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(150, 50, 100, 100), c))
                  .IsEqualInterior(Rect(150, 100, 50, 50)));
  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(150, 150, 100, 100), c))
                  .IsEqualInterior(Rect(150, 150, 50, 50)));
  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(50, 150, 100, 100), c))
                  .IsEqualInterior(Rect(100, 150, 50, 50)));

  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(110, 110, 80, 80), c))
                  .IsEqualInterior(Rect(110, 110, 80, 80)));

  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(50, 50, 200, 200), c))
                  .IsEqualInterior(Rect(100, 100, 100, 100)));

  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(50, 50, 200, 100), c))
                  .IsEqualInterior(Rect(100, 100, 100, 50)));
  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(50, 150, 200, 100), c))
                  .IsEqualInterior(Rect(100, 150, 100, 50)));
  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(50, 50, 100, 200), c))
                  .IsEqualInterior(Rect(100, 100, 50, 100)));
  EXPECT_TRUE(NudgedToInt(m.TransformAndClipBounds(Rect(150, 50, 100, 200), c))
                  .IsEqualInterior(Rect(150, 100, 50, 100)));
}