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/*
* Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "core/layout/shapes/BoxShape.h"
#include "platform/geometry/FloatRoundedRect.h"
#include "testing/gtest/include/gtest/gtest.h"
#include <memory>
namespace blink {
class BoxShapeTest : public ::testing::Test {
protected:
BoxShapeTest() {}
std::unique_ptr<Shape> createBoxShape(const FloatRoundedRect& bounds,
float shapeMargin) {
return Shape::createLayoutBoxShape(bounds, TopToBottomWritingMode,
shapeMargin);
}
};
namespace {
#define TEST_EXCLUDED_INTERVAL(shapePtr, lineTop, lineHeight, expectedLeft, \
expectedRight) \
{ \
LineSegment segment = shapePtr->getExcludedInterval(lineTop, lineHeight); \
EXPECT_TRUE(segment.isValid); \
if (segment.isValid) { \
EXPECT_FLOAT_EQ(expectedLeft, segment.logicalLeft); \
EXPECT_FLOAT_EQ(expectedRight, segment.logicalRight); \
} \
}
#define TEST_NO_EXCLUDED_INTERVAL(shapePtr, lineTop, lineHeight) \
{ \
LineSegment segment = shapePtr->getExcludedInterval(lineTop, lineHeight); \
EXPECT_FALSE(segment.isValid); \
}
/* The BoxShape is based on a 100x50 rectangle at 0,0. The shape-margin value is
* 10, so the shapeMarginBoundingBox rectangle is 120x70 at -10,-10:
*
* -10,-10 110,-10
* +--------+
* | |
* +--------+
* -10,60 60,60
*/
TEST_F(BoxShapeTest, zeroRadii) {
std::unique_ptr<Shape> shape =
createBoxShape(FloatRoundedRect(0, 0, 100, 50), 10);
EXPECT_FALSE(shape->isEmpty());
EXPECT_EQ(LayoutRect(-10, -10, 120, 70),
shape->shapeMarginLogicalBoundingBox());
// A BoxShape's bounds include the top edge but not the bottom edge.
// Similarly a "line", specified as top,height to the overlap methods,
// is defined as top <= y < top + height.
EXPECT_TRUE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(-9), LayoutUnit(1)));
EXPECT_TRUE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(-10), LayoutUnit()));
EXPECT_TRUE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(-10), LayoutUnit(200)));
EXPECT_TRUE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(5), LayoutUnit(10)));
EXPECT_TRUE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(59), LayoutUnit(1)));
EXPECT_FALSE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(-12), LayoutUnit(2)));
EXPECT_FALSE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(60), LayoutUnit(1)));
EXPECT_FALSE(
shape->lineOverlapsShapeMarginBounds(LayoutUnit(100), LayoutUnit(200)));
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(-9), LayoutUnit(1), -10, 110);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(-10), LayoutUnit(), -10, 110);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(-10), LayoutUnit(200), -10, 110);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(5), LayoutUnit(10), -10, 110);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(59), LayoutUnit(1), -10, 110);
TEST_NO_EXCLUDED_INTERVAL(shape, LayoutUnit(-12), LayoutUnit(2));
TEST_NO_EXCLUDED_INTERVAL(shape, LayoutUnit(60), LayoutUnit(1));
TEST_NO_EXCLUDED_INTERVAL(shape, LayoutUnit(100), LayoutUnit(200));
}
/* BoxShape geometry for this test. Corner radii are in parens, x and y
* intercepts for the elliptical corners are noted. The rectangle itself is at
* 0,0 with width and height 100.
*
* (10, 15) x=10 x=90 (10, 20)
* (--+---------+--)
* y=15 +--| |-+ y=20
* | |
* | |
* y=85 + -| |- + y=70
* (--+---------+--)
* (25, 15) x=25 x=80 (20, 30)
*/
TEST_F(BoxShapeTest, getIntervals) {
const FloatRoundedRect::Radii cornerRadii(
FloatSize(10, 15), FloatSize(10, 20), FloatSize(25, 15),
FloatSize(20, 30));
std::unique_ptr<Shape> shape =
createBoxShape(FloatRoundedRect(IntRect(0, 0, 100, 100), cornerRadii), 0);
EXPECT_FALSE(shape->isEmpty());
EXPECT_EQ(LayoutRect(0, 0, 100, 100), shape->shapeMarginLogicalBoundingBox());
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(10), LayoutUnit(95), 0, 100);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(5), LayoutUnit(25), 0, 100);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(15), LayoutUnit(6), 0, 100);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(20), LayoutUnit(50), 0, 100);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(69), LayoutUnit(5), 0, 100);
TEST_EXCLUDED_INTERVAL(shape, LayoutUnit(85), LayoutUnit(10), 0, 97.320511f);
}
} // anonymous namespace
} // namespace blink