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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Unit tests migrated from cxxtest
*
* Authors:
* Adrian Boguszewski
*
* Copyright (C) 2018 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <gtest/gtest.h>
#include <doc-per-case-test.h>
#include <src/object/sp-gradient.h>
#include <src/attributes.h>
#include <2geom/transforms.h>
#include <src/xml/node.h>
#include <src/xml/simple-document.h>
#include <src/svg/svg.h>
using namespace Inkscape;
using namespace Inkscape::XML;
class SPGradientTest: public DocPerCaseTest {
public:
SPGradientTest() {
DocPerCaseTest::SetUpTestCase();
gr = new SPGradient();
}
~SPGradientTest() override {
delete gr;
DocPerCaseTest::TearDownTestCase();
}
SPGradient *gr;
};
TEST_F(SPGradientTest, Init) {
ASSERT_TRUE(gr != nullptr);
EXPECT_TRUE(gr->gradientTransform.isIdentity());
EXPECT_TRUE(Geom::are_near(Geom::identity(), gr->gradientTransform));
}
TEST_F(SPGradientTest, SetGradientTransform) {
SP_OBJECT(gr)->document = _doc;
SP_OBJECT(gr)->setKeyValue(SP_ATTR_GRADIENTTRANSFORM, "translate(5, 8)");
EXPECT_TRUE(Geom::are_near(Geom::Affine(Geom::Translate(5.0, 8.0)), gr->gradientTransform));
SP_OBJECT(gr)->setKeyValue(SP_ATTR_GRADIENTTRANSFORM, "");
EXPECT_TRUE(Geom::are_near(Geom::identity(), gr->gradientTransform));
SP_OBJECT(gr)->setKeyValue(SP_ATTR_GRADIENTTRANSFORM, "rotate(90)");
EXPECT_TRUE(Geom::are_near(Geom::Affine(Geom::Rotate::from_degrees(90.0)), gr->gradientTransform));
}
TEST_F(SPGradientTest, Write) {
SP_OBJECT(gr)->document = _doc;
SP_OBJECT(gr)->setKeyValue(SP_ATTR_GRADIENTTRANSFORM, "matrix(0, 1, -1, 0, 0, 0)");
Document *xml_doc = _doc->getReprDoc();
ASSERT_TRUE(xml_doc != nullptr);
Node *repr = xml_doc->createElement("svg:radialGradient");
SP_OBJECT(gr)->updateRepr(xml_doc, repr, SP_OBJECT_WRITE_ALL);
gchar const *tr = repr->attribute("gradientTransform");
Geom::Affine svd;
bool const valid = sp_svg_transform_read(tr, &svd);
EXPECT_TRUE(valid);
EXPECT_TRUE(Geom::are_near(Geom::Affine(Geom::Rotate::from_degrees(90.0)), svd));
}
TEST_F(SPGradientTest, GetG2dGetGs2dSetGs2) {
SP_OBJECT(gr)->document = _doc;
Geom::Affine grXform(2, 1,
1, 3,
4, 6);
gr->gradientTransform = grXform;
Geom::Rect unit_rect(Geom::Point(0, 0), Geom::Point(1, 1));
{
Geom::Affine g2d(gr->get_g2d_matrix(Geom::identity(), unit_rect));
Geom::Affine gs2d(gr->get_gs2d_matrix(Geom::identity(), unit_rect));
EXPECT_TRUE(Geom::are_near(Geom::identity(), g2d));
EXPECT_TRUE(Geom::are_near(gs2d, gr->gradientTransform * g2d, 1e-12));
gr->set_gs2d_matrix(Geom::identity(), unit_rect, gs2d);
EXPECT_TRUE(Geom::are_near(gr->gradientTransform, grXform, 1e-12));
}
gr->gradientTransform = grXform;
Geom::Affine funny(2, 3,
4, 5,
6, 7);
{
Geom::Affine g2d(gr->get_g2d_matrix(funny, unit_rect));
Geom::Affine gs2d(gr->get_gs2d_matrix(funny, unit_rect));
EXPECT_TRUE(Geom::are_near(funny, g2d));
EXPECT_TRUE(Geom::are_near(gs2d, gr->gradientTransform * g2d, 1e-12));
gr->set_gs2d_matrix(funny, unit_rect, gs2d);
EXPECT_TRUE(Geom::are_near(gr->gradientTransform, grXform, 1e-12));
}
gr->gradientTransform = grXform;
Geom::Rect larger_rect(Geom::Point(5, 6), Geom::Point(8, 10));
{
Geom::Affine g2d(gr->get_g2d_matrix(funny, larger_rect));
Geom::Affine gs2d(gr->get_gs2d_matrix(funny, larger_rect));
EXPECT_TRUE(Geom::are_near(Geom::Affine(3, 0,
0, 4,
5, 6) * funny, g2d ));
EXPECT_TRUE(Geom::are_near(gs2d, gr->gradientTransform * g2d, 1e-12));
gr->set_gs2d_matrix(funny, larger_rect, gs2d);
EXPECT_TRUE(Geom::are_near(gr->gradientTransform, grXform, 1e-12));
SP_OBJECT(gr)->setKeyValue( SP_ATTR_GRADIENTUNITS, "userSpaceOnUse");
Geom::Affine user_g2d(gr->get_g2d_matrix(funny, larger_rect));
Geom::Affine user_gs2d(gr->get_gs2d_matrix(funny, larger_rect));
EXPECT_TRUE(Geom::are_near(funny, user_g2d));
EXPECT_TRUE(Geom::are_near(user_gs2d, gr->gradientTransform * user_g2d, 1e-12));
}
}
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