#ifndef SEEN_SP_GRADIENT_TEST_H

#define SEEN_SP_GRADIENT_TEST_H

#include "document-using-test.h"

#include "sp-gradient.h"

#include "svg/svg.h"

#include "xml/repr.h"

#include <2geom/transforms.h>

#include "helper/geom.h"

class SPGradientTest : public DocumentUsingTest

{

public:

SPDocument* _doc;

SPGradientTest() :

_doc(0)

{

}

virtual ~SPGradientTest()

{

if ( _doc )

{

_doc->doUnref();

}

}

static void createSuiteSubclass( SPGradientTest *& dst )

{

SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));

if ( gr ) {

UTEST_ASSERT(gr->gradientTransform.isIdentity());

UTEST_ASSERT(gr->gradientTransform == Geom::identity());

g_object_unref(gr);

dst = new SPGradientTest();

}

}

static SPGradientTest *createSuite()

{

return Inkscape::createSuiteAndDocument<SPGradientTest>( createSuiteSubclass );

}

static void destroySuite( SPGradientTest *suite ) { delete suite; }

void testSetGradientTransform()

{

SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));

SP_OBJECT(gr)->document = _doc;

sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "translate(5, 8)");

TS_ASSERT_EQUALS( gr->gradientTransform, Geom::Matrix(Geom::Translate(5, 8)) );

sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "");

TS_ASSERT_EQUALS( gr->gradientTransform, Geom::identity() );

sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "rotate(90)");

TS_ASSERT_EQUALS( gr->gradientTransform, Geom::Matrix(rotate_degrees(90)) );

g_object_unref(gr);

}

void testWrite()

{

SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));

SP_OBJECT(gr)->document = _doc;

sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "matrix(0, 1, -1, 0, 0, 0)");

Inkscape::XML::Document *xml_doc = sp_document_repr_doc(_doc);

Inkscape::XML::Node *repr = xml_doc->createElement("svg:radialGradient");

SP_OBJECT(gr)->updateRepr(repr, SP_OBJECT_WRITE_ALL);

{

gchar const *tr = repr->attribute("gradientTransform");

Geom::Matrix svd;

bool const valid = sp_svg_transform_read(tr, &svd);

TS_ASSERT( valid );

TS_ASSERT_EQUALS( svd, Geom::Matrix(rotate_degrees(90)) );

}

g_object_unref(gr);

}

void testGetG2dGetGs2dSetGs2d()

{

SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));

SP_OBJECT(gr)->document = _doc;

Geom::Matrix const grXform(2, 1,

1, 3,

4, 6);

gr->gradientTransform = grXform;

Geom::Rect const unit_rect(Geom::Point(0, 0), Geom::Point(1, 1));

{

Geom::Matrix const g2d(sp_gradient_get_g2d_matrix(gr, Geom::identity(), unit_rect));

Geom::Matrix const gs2d(sp_gradient_get_gs2d_matrix(gr, Geom::identity(), unit_rect));

TS_ASSERT_EQUALS( g2d, Geom::identity() );

TS_ASSERT( Geom::matrix_equalp(gs2d, gr->gradientTransform * g2d, 1e-12) );

sp_gradient_set_gs2d_matrix(gr, Geom::identity(), unit_rect, gs2d);

TS_ASSERT( Geom::matrix_equalp(gr->gradientTransform, grXform, 1e-12) );

}

gr->gradientTransform = grXform;

Geom::Matrix const funny(2, 3,

4, 5,

6, 7);

{

Geom::Matrix const g2d(sp_gradient_get_g2d_matrix(gr, funny, unit_rect));

Geom::Matrix const gs2d(sp_gradient_get_gs2d_matrix(gr, funny, unit_rect));

TS_ASSERT_EQUALS( g2d, funny );

TS_ASSERT( Geom::matrix_equalp(gs2d, gr->gradientTransform * g2d, 1e-12) );

sp_gradient_set_gs2d_matrix(gr, funny, unit_rect, gs2d);

TS_ASSERT( Geom::matrix_equalp(gr->gradientTransform, grXform, 1e-12) );

}

gr->gradientTransform = grXform;

Geom::Rect const larger_rect(Geom::Point(5, 6), Geom::Point(8, 10));

{

Geom::Matrix const g2d(sp_gradient_get_g2d_matrix(gr, funny, larger_rect));

Geom::Matrix const gs2d(sp_gradient_get_gs2d_matrix(gr, funny, larger_rect));

TS_ASSERT_EQUALS( g2d, Geom::Matrix(3, 0,

0, 4,

5, 6) * funny );

TS_ASSERT( Geom::matrix_equalp(gs2d, gr->gradientTransform * g2d, 1e-12) );

sp_gradient_set_gs2d_matrix(gr, funny, larger_rect, gs2d);

TS_ASSERT( Geom::matrix_equalp(gr->gradientTransform, grXform, 1e-12) );

sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTUNITS, "userSpaceOnUse");

Geom::Matrix const user_g2d(sp_gradient_get_g2d_matrix(gr, funny, larger_rect));

Geom::Matrix const user_gs2d(sp_gradient_get_gs2d_matrix(gr, funny, larger_rect));

TS_ASSERT_EQUALS( user_g2d, funny );

TS_ASSERT( Geom::matrix_equalp(user_gs2d, gr->gradientTransform * user_g2d, 1e-12) );

}

g_object_unref(gr);

}

};

#endif // SEEN_SP_GRADIENT_TEST_H