src/sp-gradient-test.h

   1
   2 #ifndef SEEN_SP_GRADIENT_TEST_H
   3 #define SEEN_SP_GRADIENT_TEST_H
   4
   5 #include "document-using-test.h"
   6
   7
   8 #include "sp-gradient.h"
   9 #include "svg/svg.h"
  10 #include "xml/repr.h"
  11 #include <2geom/transforms.h>
  12 #include "helper/geom.h"
  13
  14 class SPGradientTest : public DocumentUsingTest
  15 {
  16 public:
  17     SPDocument* _doc;
  18
  19     SPGradientTest() :
  20         _doc(0)
  21     {
  22     }
  23
  24     virtual ~SPGradientTest()
  25     {
  26         if ( _doc )
  27         {
  28             sp_document_unref( _doc );
  29         }
  30     }
  31
  32     static void createSuiteSubclass( SPGradientTest *& dst )
  33     {
  34         SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));
  35         if ( gr ) {
  36             UTEST_ASSERT(gr->gradientTransform.isIdentity());
  37             UTEST_ASSERT(gr->gradientTransform == Geom::identity());
  38             g_object_unref(gr);
  39
  40             dst = new SPGradientTest();
  41         }
  42     }
  43
  44     static SPGradientTest *createSuite()
  45     {
  46         return Inkscape::createSuiteAndDocument<SPGradientTest>( createSuiteSubclass );
  47     }
  48
  49     static void destroySuite( SPGradientTest *suite ) { delete suite; }
  50
  51 // -------------------------------------------------------------------------
  52 // -------------------------------------------------------------------------
  53
  54     void testSetGradientTransform()
  55     {
  56         SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));
  57         SP_OBJECT(gr)->document = _doc;
  58
  59         sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "translate(5, 8)");
  60         TS_ASSERT_EQUALS( gr->gradientTransform, Geom::Matrix(Geom::Translate(5, 8)) );
  61
  62         sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "");
  63         TS_ASSERT_EQUALS( gr->gradientTransform, Geom::identity() );
  64
  65         sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "rotate(90)");
  66         TS_ASSERT_EQUALS( gr->gradientTransform, Geom::Matrix(rotate_degrees(90)) );
  67
  68         g_object_unref(gr);
  69     }
  70
  71
  72     void testWrite()
  73     {
  74         SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));
  75         SP_OBJECT(gr)->document = _doc;
  76
  77         sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTTRANSFORM, "matrix(0, 1, -1, 0, 0, 0)");
  78         Inkscape::XML::Document *xml_doc = sp_document_repr_doc(_doc);
  79         Inkscape::XML::Node *repr = xml_doc->createElement("svg:radialGradient");
  80         SP_OBJECT(gr)->updateRepr(repr, SP_OBJECT_WRITE_ALL);
  81         {
  82             gchar const *tr = repr->attribute("gradientTransform");
  83             Geom::Matrix svd;
  84             bool const valid = sp_svg_transform_read(tr, &svd);
  85             TS_ASSERT( valid );
  86             TS_ASSERT_EQUALS( svd, Geom::Matrix(rotate_degrees(90)) );
  87         }
  88
  89         g_object_unref(gr);
  90     }
  91
  92
  93     void testGetG2dGetGs2dSetGs2d()
  94     {
  95         SPGradient *gr = static_cast<SPGradient *>(g_object_new(SP_TYPE_GRADIENT, NULL));
  96         SP_OBJECT(gr)->document = _doc;
  97         Geom::Matrix const grXform(2, 1,
  98                                  1, 3,
  99                                  4, 6);
 100         gr->gradientTransform = grXform;
 101         Geom::Rect const unit_rect(Geom::Point(0, 0), Geom::Point(1, 1));
 102         {
 103             Geom::Matrix const g2d(sp_gradient_get_g2d_matrix(gr, Geom::identity(), unit_rect));
 104             Geom::Matrix const gs2d(sp_gradient_get_gs2d_matrix(gr, Geom::identity(), unit_rect));
 105             TS_ASSERT_EQUALS( g2d, Geom::identity() );
 106             TS_ASSERT( Geom::matrix_equalp(gs2d, gr->gradientTransform * g2d, 1e-12) );
 107
 108             sp_gradient_set_gs2d_matrix(gr, Geom::identity(), unit_rect, gs2d);
 109             TS_ASSERT( Geom::matrix_equalp(gr->gradientTransform, grXform, 1e-12) );
 110         }
 111
 112         gr->gradientTransform = grXform;
 113         Geom::Matrix const funny(2, 3,
 114                                4, 5,
 115                                6, 7);
 116         {
 117             Geom::Matrix const g2d(sp_gradient_get_g2d_matrix(gr, funny, unit_rect));
 118             Geom::Matrix const gs2d(sp_gradient_get_gs2d_matrix(gr, funny, unit_rect));
 119             TS_ASSERT_EQUALS( g2d, funny );
 120             TS_ASSERT( Geom::matrix_equalp(gs2d, gr->gradientTransform * g2d, 1e-12) );
 121
 122             sp_gradient_set_gs2d_matrix(gr, funny, unit_rect, gs2d);
 123             TS_ASSERT( Geom::matrix_equalp(gr->gradientTransform, grXform, 1e-12) );
 124         }
 125
 126         gr->gradientTransform = grXform;
 127         Geom::Rect const larger_rect(Geom::Point(5, 6), Geom::Point(8, 10));
 128         {
 129             Geom::Matrix const g2d(sp_gradient_get_g2d_matrix(gr, funny, larger_rect));
 130             Geom::Matrix const gs2d(sp_gradient_get_gs2d_matrix(gr, funny, larger_rect));
 131             TS_ASSERT_EQUALS( g2d, Geom::Matrix(3, 0,
 132                                               0, 4,
 133                                               5, 6) * funny );
 134             TS_ASSERT( Geom::matrix_equalp(gs2d, gr->gradientTransform * g2d, 1e-12) );
 135
 136             sp_gradient_set_gs2d_matrix(gr, funny, larger_rect, gs2d);
 137             TS_ASSERT( Geom::matrix_equalp(gr->gradientTransform, grXform, 1e-12) );
 138
 139             sp_object_set(SP_OBJECT(gr), SP_ATTR_GRADIENTUNITS, "userSpaceOnUse");
 140             Geom::Matrix const user_g2d(sp_gradient_get_g2d_matrix(gr, funny, larger_rect));
 141             Geom::Matrix const user_gs2d(sp_gradient_get_gs2d_matrix(gr, funny, larger_rect));
 142             TS_ASSERT_EQUALS( user_g2d, funny );
 143             TS_ASSERT( Geom::matrix_equalp(user_gs2d, gr->gradientTransform * user_g2d, 1e-12) );
 144         }
 145         g_object_unref(gr);
 146     }
 147
 148 };
 149
 150
 151 #endif // SEEN_SP_GRADIENT_TEST_H
 152
 153 /*
 154   Local Variables:
 155   mode:c++
 156   c-file-style:"stroustrup"
 157   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 158   indent-tabs-mode:nil
 159   fill-column:99
 160   End:
 161 */
 162 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :