src/sp-gradient-test.h

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