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+/*************************************************************************
+** BoundingBoxTest.cpp **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2017 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** This program is free software; you can redistribute it and/or **
+** modify it under the terms of the GNU General Public License as **
+** published by the Free Software Foundation; either version 3 of **
+** the License, or (at your option) any later version. **
+** **
+** This program is distributed in the hope that it will be useful, but **
+** WITHOUT ANY WARRANTY; without even the implied warranty of **
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
+** GNU General Public License for more details. **
+** **
+** You should have received a copy of the GNU General Public License **
+** along with this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#define _USE_MATH_DEFINES
+#include <gtest/gtest.h>
+#include <cmath>
+#include <sstream>
+#include "BoundingBox.hpp"
+#include "Length.hpp"
+#include "Matrix.hpp"
+#include "XMLNode.hpp"
+
+using namespace std;
+
+TEST(BoundingBoxTest, construct) {
+ BoundingBox bbox1;
+ EXPECT_FALSE(bbox1.valid());
+ EXPECT_FALSE(bbox1.locked());
+
+ BoundingBox bbox2(50, 20, 5, 2);
+ EXPECT_TRUE(bbox2.valid());
+ EXPECT_FALSE(bbox2.locked());
+ EXPECT_DOUBLE_EQ(bbox2.minX(), 5);
+ EXPECT_DOUBLE_EQ(bbox2.maxX(), 50);
+ EXPECT_DOUBLE_EQ(bbox2.minY(), 2);
+ EXPECT_DOUBLE_EQ(bbox2.maxY(), 20);
+ EXPECT_EQ(bbox2, BoundingBox(DPair(50, 20), DPair(5, 2)));
+
+ BoundingBox bbox3(" 1bp 2bp 3bp 4bp ");
+ EXPECT_TRUE(bbox2.valid());
+ EXPECT_FALSE(bbox2.locked());
+ EXPECT_DOUBLE_EQ(bbox3.minX(), 1);
+ EXPECT_DOUBLE_EQ(bbox3.minY(), 2);
+ EXPECT_DOUBLE_EQ(bbox3.maxX(), 3);
+ EXPECT_DOUBLE_EQ(bbox3.maxY(), 4);
+
+ Length len(2, Length::Unit::CM);
+ double bp = len.bp();
+ BoundingBox bbox4(len, len, len, len);
+ EXPECT_DOUBLE_EQ(bbox4.minX(), bp);
+ EXPECT_DOUBLE_EQ(bbox4.minY(), bp);
+ EXPECT_DOUBLE_EQ(bbox4.maxX(), bp);
+ EXPECT_DOUBLE_EQ(bbox4.maxY(), bp);
+}
+
+
+TEST(BoundingBoxTest, extent) {
+ BoundingBox bbox(5, 10, 30, 30);
+ EXPECT_DOUBLE_EQ(bbox.width(), 25);
+ EXPECT_DOUBLE_EQ(bbox.height(), 20);
+}
+
+
+TEST(BoundingBoxTest, set) {
+ BoundingBox bbox;
+ bbox.set("1bp 2bp 3bp 4bp");
+ EXPECT_EQ(bbox, BoundingBox(1, 2, 3, 4));
+
+ bbox.set("4bp 3bp 2bp 1bp");
+ EXPECT_EQ(bbox, BoundingBox(2, 1, 4, 3));
+
+ bbox.set("1bp");
+ EXPECT_EQ(bbox, BoundingBox(1, 0, 5, 4));
+
+ bbox.set("2bp 3bp");
+ EXPECT_EQ(bbox, BoundingBox(-1, -3, 7, 7));
+
+ EXPECT_THROW(bbox.set(""), BoundingBoxException);
+ EXPECT_THROW(bbox.set("1bp 2bp 3bp"), BoundingBoxException);
+}
+
+
+TEST(BoundingBoxTest, embed) {
+ BoundingBox bbox1(3, 4, 10, 15);
+ BoundingBox bbox2(3, 4, 10, 15);
+ EXPECT_EQ(bbox1, bbox2);
+
+ bbox1.embed(6, 6);
+ EXPECT_EQ(bbox1, bbox2);
+
+ bbox1.embed(11, 14);
+ EXPECT_EQ(bbox1, BoundingBox(3, 4, 11, 15));
+
+ bbox2.embed(DPair(11, 14));
+ EXPECT_EQ(bbox1, bbox2);
+
+ bbox1.embed(Pair<int>(0, 0));
+ EXPECT_EQ(bbox1, BoundingBox(0, 0, 11, 15));
+ EXPECT_NE(bbox1, bbox2);
+
+ bbox2.embed(bbox1);
+ EXPECT_EQ(bbox1, bbox2);
+
+ bbox1 = BoundingBox(5, 5, 5, 5);
+ bbox1.embed(DPair(5, 5), 2);
+ EXPECT_EQ(bbox1, BoundingBox(3, 3, 7, 7));
+
+ EXPECT_NE(bbox1, bbox2);
+ bbox1.invalidate();
+ bbox1.embed(bbox2);
+ EXPECT_EQ(bbox1, bbox2);
+}
+
+
+TEST(BoundingBoxTest, expand) {
+ BoundingBox bbox(4, 5, 6, 7);
+ bbox.expand(3);
+ EXPECT_EQ(bbox, BoundingBox(1, 2, 9, 10));
+}
+
+
+TEST(BoundingBoxTest, lock) {
+ BoundingBox bbox(4, 5, 6, 7);
+ bbox.lock();
+ bbox.expand(3);
+ EXPECT_EQ(bbox, BoundingBox(4, 5, 6, 7));
+}
+
+
+TEST(BoundingBoxTest, scale) {
+ BoundingBox bbox(4, 5, 6, 7);
+ bbox.scale(2, 2);
+ EXPECT_EQ(bbox, BoundingBox(8, 10, 12, 14));
+ bbox.scale(-2, -2);
+ EXPECT_EQ(bbox, BoundingBox(-24, -28, -16, -20));
+}
+
+
+TEST(BoundingBoxTest, inc) {
+ BoundingBox bbox(4, 5, 6, 7);
+ bbox += BoundingBox(8, 9, 10, 11);
+ EXPECT_EQ(bbox, BoundingBox(12, 14, 16, 18));
+}
+
+
+TEST(BoundingBoxTest, intersect) {
+ BoundingBox bbox(4, 5, 16, 17);
+ bbox.intersect(BoundingBox(10, 18, 20, 25));
+ EXPECT_EQ(bbox, BoundingBox(4, 5, 16, 17));
+
+ bbox.intersect(BoundingBox(10, 10, 20, 25));
+ EXPECT_EQ(bbox, BoundingBox(10, 10, 16, 17));
+}
+
+
+TEST(BoundingBoxTest, transform) {
+ BoundingBox bbox(-5, -5, 5, 5);
+ Matrix matrix(1);
+ matrix.rotate(M_PI/4);
+ bbox.transform(matrix);
+ EXPECT_NEAR(bbox.minX(), -5.068, 0.001);
+ EXPECT_NEAR(bbox.minY(), -5.068, 0.001);
+ EXPECT_NEAR(bbox.maxX(), 5.068, 0.001);
+ EXPECT_NEAR(bbox.maxY(), 5.068, 0.001);
+
+ matrix.rotate(-M_PI/4).translate(2, 3);
+ bbox.transform(matrix);
+ EXPECT_NEAR(bbox.minX(), -3.068, 0.001);
+ EXPECT_NEAR(bbox.minY(), -2.068, 0.001);
+ EXPECT_NEAR(bbox.maxX(), 7.068, 0.001);
+ EXPECT_NEAR(bbox.maxY(), 8.068, 0.001);
+}
+
+
+TEST(BoundingBoxTest, svgViewBox) {
+ BoundingBox bbox(4, 5, 6, 7);
+ ostringstream oss;
+ oss << bbox.toSVGViewBox();
+ EXPECT_EQ(oss.str(), "4 5 2 2");
+}
+
+
+TEST(BoundingBoxTest, svgRectElement) {
+ BoundingBox bbox(4, 5, 6, 7);
+ XMLElementNode *rect = bbox.createSVGRect();
+ EXPECT_TRUE(rect != 0);
+ EXPECT_EQ(rect->getName(), "rect");
+ EXPECT_EQ(string(rect->getAttributeValue("x")), "4");
+ EXPECT_EQ(string(rect->getAttributeValue("y")), "5");
+ EXPECT_EQ(string(rect->getAttributeValue("width")), "2");
+ EXPECT_EQ(string(rect->getAttributeValue("height")), "2");
+ delete rect;
+}