basegfx/test/SvgPathImportExport.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #include <cppunit/TestAssert.h>
  21 #include <cppunit/TestFixture.h>
  22 #include <cppunit/extensions/HelperMacros.h>
  23
  24 #include <basegfx/polygon/b2dpolygontools.hxx>
  25 #include <basegfx/polygon/b2dpolypolygon.hxx>
  26 #include <basegfx/polygon/b2dpolypolygontools.hxx>
  27
  28 namespace basegfx
  29 {
  30
  31 class SvgPathImportExport : public CppUnit::TestFixture
  32 {
  33 private:
  34     OUString aPath0;
  35     OUString aPath1;
  36     OUString aPath2;
  37     OUString aPath3;
  38
  39 public:
  40     // initialise your test code values here.
  41     void setUp() override
  42     {
  43         // simple rectangle
  44         aPath0 = "M 10 10-10 10-10-10 10-10Z";
  45
  46         // simple bezier polygon
  47         aPath1 = "m11430 0c-8890 3810 5715 6985 5715 6985 "
  48             "0 0-17145-1905-17145-1905 0 0 22860-10160 "
  49             "16510 6350-6350 16510-3810-11430-3810-11430z";
  50
  51         // '@' as a bezier polygon
  52         aPath2 = "m1917 1114c-89-189-233-284-430-284-167 "
  53             "0-306 91-419 273-113 182-170 370-170 564 "
  54             "0 145 33 259 98 342 65 84 150 126 257 126 "
  55             "77 0 154-19 231-57 77-38 147-97 210-176 63"
  56             "-79 99-143 109-190 38-199 76-398 114-598z"
  57             "m840 1646c-133 73-312 139-537 197-225 57"
  58             "-440 86-644 87-483-1-866-132-1150-392-284"
  59             "-261-426-619-426-1076 0-292 67-560 200-803 "
  60             "133-243 321-433 562-569 241-136 514-204 821"
  61             "-204 405 0 739 125 1003 374 264 250 396 550 "
  62             "396 899 0 313-88 576-265 787-177 212-386 318"
  63             "-627 318-191 0-308-94-352-281-133 187-315 281"
  64             "-546 281-172 0-315-67-428-200-113-133-170-301"
  65             "-170-505 0-277 90-527 271-751 181-223 394"
  66             "-335 640-335 196 0 353 83 470 250 13-68 26"
  67             "-136 41-204 96 0 192 0 288 0-74 376-148 752"
  68             "-224 1128-21 101-31 183-31 245 0 39 9 70 26 "
  69             "93 17 24 39 36 67 36 145 0 279-80 400-240 121"
  70             "-160 182-365 182-615 0-288-107-533-322-734"
  71             "-215-201-487-301-816-301-395 0-715 124-960 "
  72             "373-245 249-368 569-368 958 0 385 119 685 "
  73             "357 900 237 216 557 324 958 325 189-1 389-27 "
  74             "600-77 211-52 378-110 503-174 27 70 54 140 81 210z";
  75
  76         // first part of 'Hello World' as a line polygon
  77         aPath3 = "m1598 125h306v2334h-306v-1105h-1293v1105h-305v"
  78             "-2334h305v973h1293zm2159 1015 78-44 85 235-91 "
  79             "47-91 40-90 34-90 29-89 21-88 16-88 10-88 3-102"
  80             "-4-97-12-91-19-85-26-40-16-39-18-38-20-36-22-34"
  81             "-24-33-26-32-27-30-30-29-31-27-33-25-33-23-36-21"
  82             "-36-19-38-18-40-16-40-26-86-18-91-11-97-4-103 3"
  83             "-98 11-94 17-89 24-84 31-79 37-75 22-35 23-34 24"
  84             "-33 27-32 28-30 29-28 31-27 31-24 33-22 34-21 35"
  85             "-18 37-17 38-14 38-13 41-11 41-8 86-12 91-4 82 4 "
  86             "78 10 37 9 37 9 36 12 35 14 33 15 33 17 32 19 31 "
  87             "21 30 22 30 25 55 54 26 29 24 31 22 32 21 33 19 "
  88             "34 18 36 30 74 23 80 17 84 10 89 3 94v78h-1277l6 "
  89             "75 10 70 14 66 19 62 23 57 13 26 14 26 15 25 17 "
  90             "23 17 22 19 21 19 20 21 18 21 18 23 16 23 14 24 "
  91             "14 26 12 26 11 27 10 28 8 59 13 63 7 67 3 80-3 81"
  92             "-9 79-14 80-21 78-26 79-32zm-1049-808-12 53h963l"
  93             "-7-51-11-49-14-46-17-43-21-40-24-38-27-36-31-32"
  94             "-33-29-35-25-37-22-38-17-40-14-41-9-42-6-44-2-48 "
  95             "2-46 6-44 9-42 13-40 17-38 21-36 24-34 28-32 32"
  96             "-29 34-26 38-23 41-20 44-17 47zm1648-1293h288v"
  97             "2459h-288zm752-2459h288v2459h-288zm1286-1750 86-11 "
  98             "91-4 91 4 85 12 42 8 39 11 39 13 38 14 36 17 35 18 "
  99             "34 20 33 23 31 24 30 26 29 28 28 30 26 32 25 33 23 "
 100             "34 21 35 37 75 31 80 24 84 16 90 11 94 3 100-3 100"
 101             "-11 95-16 89-24 85-31 80-37 74-21 35-23 35-25 32-26 "
 102             "32-28 30-29 28-30 26-31 24-33 22-34 21-35 18-36 17"
 103             "-38 14-39 13-39 10-42 9-85 12-91 4-91-4-86-12-41-9"
 104             "-40-10-39-13-37-14-36-17-35-18-34-21-33-22-31-24-30"
 105             "-26-29-28-28-30-26-32-25-32-23-35-21-35-38-74-30-80"
 106             "-24-85-17-89-11-95-3-100 3-101 11-95 17-90 24-85 30"
 107             "-79 38-75 21-35 23-35 25-32 26-32 28-30 29-28 30-26 "
 108             "31-24 33-22 34-20 35-18 36-16 37-15 39-12 40-11z";
 109     }
 110
 111     void testImportExport()
 112     {
 113         B2DPolyPolygon  aPoly;
 114         OUString aExport;
 115
 116         CPPUNIT_ASSERT_MESSAGE("importing simple rectangle from SVG-D",
 117                                utils::importFromSvgD( aPoly, aPath0, false, nullptr ));
 118         aExport = utils::exportToSvgD( aPoly, true, true, false );
 119         static constexpr OUString sExportString = u"m10 10h-20v-20h20z"_ustr;
 120         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting rectangle to SVG-D",
 121                                sExportString, aExport );
 122         CPPUNIT_ASSERT_MESSAGE("importing simple rectangle from SVG-D (round-trip",
 123                                utils::importFromSvgD( aPoly, aExport, false, nullptr ));
 124         aExport = utils::exportToSvgD( aPoly, true, true, false );
 125         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting rectangle to SVG-D (round-trip)",
 126                                sExportString, aExport);
 127
 128         CPPUNIT_ASSERT_MESSAGE("importing simple bezier polygon from SVG-D",
 129                                utils::importFromSvgD( aPoly, aPath1, false, nullptr ));
 130         aExport = utils::exportToSvgD( aPoly, true, true, false );
 131
 132         // Adaptations for B2DPolygon bezier change (see #i77162#):
 133
 134         // The import/export of aPath1 does not reproduce aExport again. This is
 135         // correct since aPath1 contains a segment with non-used control points
 136         // which gets exported now correctly as 'l' and also a point (#4, index 3)
 137         // with C2 continuity which produces a 's' statement now.
 138
 139         // The old SVGexport identified nun-used ControlVectors erroneously as Bezier segments
 140         // because the 2nd vector at the start point was used, even when added
 141         // with start point was identical to end point. Exactly for that reason
 142         // i reworked the B2DPolygon to use prev, next control points.
 143
 144         // so for correct unit test i add the new exported string here as sExportStringSimpleBezier
 145         // and compare to it.
 146         static constexpr OUString sExportStringSimpleBezier =
 147             u"m11430 0c-8890 3810 5715 6985 5715 6985"
 148             "l-17145-1905c0 0 22860-10160 16510 6350"
 149             "s-3810-11430-3810-11430z"_ustr;
 150         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting bezier polygon to SVG-D", sExportStringSimpleBezier, aExport);
 151
 152         // Adaptations for B2DPolygon bezier change (see #i77162#):
 153
 154         // a 2nd good test is that re-importing of aExport has to create the same
 155         // B2DPolPolygon again:
 156         B2DPolyPolygon aReImport;
 157         CPPUNIT_ASSERT_MESSAGE("importing simple bezier polygon from SVG-D", utils::importFromSvgD( aReImport, aExport, false, nullptr));
 158         CPPUNIT_ASSERT_EQUAL_MESSAGE("re-imported polygon needs to be identical", aPoly, aReImport);
 159
 160         CPPUNIT_ASSERT_MESSAGE("importing '@' from SVG-D", utils::importFromSvgD( aPoly, aPath2, false, nullptr));
 161         aExport = utils::exportToSvgD( aPoly, true, true, false );
 162
 163         // Adaptations for B2DPolygon bezier change (see #i77162#):
 164
 165         // same here, the corrected export with the corrected B2DPolygon is simply more efficient,
 166         // so i needed to change the compare string. Also adding the re-import comparison below.
 167         static constexpr OUString sExportString1 =
 168             u"m1917 1114c-89-189-233-284-430-284-167 0-306 91-419 273s-170 370-17"
 169             "0 564c0 145 33 259 98 342 65 84 150 126 257 126q115.5 0 231-57s147-97 210-176 99-143 109-190c38-199 76-398 114"
 170             "-598zm840 1646c-133 73-312 139-537 197-225 57-440 86-644 87-483-1-866-132-1150-392-284-261-426-619-426-1076 0-"
 171             "292 67-560 200-803s321-433 562-569 514-204 821-204c405 0 739 125 1003 374 264 250 396 550 396 899 0 313-88 576"
 172             "-265 787q-265.5 318-627 318c-191 0-308-94-352-281-133 187-315 281-546 281-172 0-315-67-428-200s-170-301-170-50"
 173             "5c0-277 90-527 271-751 181-223 394-335 640-335 196 0 353 83 470 250 13-68 26-136 41-204q144 0 288 0c-74 376-14"
 174             "8 752-224 1128-21 101-31 183-31 245 0 39 9 70 26 93 17 24 39 36 67 36 145 0 279-80 400-240s182-365 182-615c0-2"
 175             "88-107-533-322-734s-487-301-816-301c-395 0-715 124-960 373s-368 569-368 958q0 577.5 357 900c237 216 557 324 95"
 176             "8 325 189-1 389-27 600-77 211-52 378-110 503-174q40.5 105 81 210z"_ustr;
 177         CPPUNIT_ASSERT_MESSAGE("re-importing '@' from SVG-D", utils::importFromSvgD( aReImport, aExport, false, nullptr));
 178         CPPUNIT_ASSERT_EQUAL_MESSAGE("re-imported '@' needs to be identical", aPoly, aReImport);
 179
 180         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting '@' to SVG-D", sExportString1, aExport);
 181         CPPUNIT_ASSERT_MESSAGE("importing '@' from SVG-D (round-trip",
 182                                utils::importFromSvgD( aPoly, aExport, false, nullptr ));
 183         aExport = utils::exportToSvgD( aPoly, true, true, false );
 184         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting '@' to SVG-D (round-trip)",
 185                                sExportString1, aExport);
 186
 187         CPPUNIT_ASSERT_MESSAGE("importing complex polygon from SVG-D",
 188                                utils::importFromSvgD( aPoly, aPath3, false, nullptr ));
 189         aExport = utils::exportToSvgD( aPoly, true, true, false );
 190         static constexpr OUString sExportString2 =
 191             u"m1598 125h306v2334h-306v-1105h-1293v1105h-305v-2334h305v973h1293"
 192             "zm2159 1015 78-44 85 235-91 47-91 40-90 34-90 29-89 21-88 16-88 10-88 3-102-4-97"
 193             "-12-91-19-85-26-40-16-39-18-38-20-36-22-34-24-33-26-32-27-30-30-29-31-27-33-25-3"
 194             "3-23-36-21-36-19-38-18-40-16-40-26-86-18-91-11-97-4-103 3-98 11-94 17-89 24-84 3"
 195             "1-79 37-75 22-35 23-34 24-33 27-32 28-30 29-28 31-27 31-24 33-22 34-21 35-18 37-"
 196             "17 38-14 38-13 41-11 41-8 86-12 91-4 82 4 78 10 37 9 37 9 36 12 35 14 33 15 33 1"
 197             "7 32 19 31 21 30 22 30 25 55 54 26 29 24 31 22 32 21 33 19 34 18 36 30 74 23 80 "
 198             "17 84 10 89 3 94v78h-1277l6 75 10 70 14 66 19 62 23 57 13 26 14 26 15 25 17 23 1"
 199             "7 22 19 21 19 20 21 18 21 18 23 16 23 14 24 14 26 12 26 11 27 10 28 8 59 13 63 7"
 200             " 67 3 80-3 81-9 79-14 80-21 78-26 79-32zm-1049-808-12 53h963l-7-51-11-49-14-46-1"
 201             "7-43-21-40-24-38-27-36-31-32-33-29-35-25-37-22-38-17-40-14-41-9-42-6-44-2-48 2-4"
 202             "6 6-44 9-42 13-40 17-38 21-36 24-34 28-32 32-29 34-26 38-23 41-20 44-17 47zm1648"
 203             "-1293h288v2459h-288zm752-2459h288v2459h-288zm1286-1750 86-11 91-4 91 4 85 12 42 "
 204             "8 39 11 39 13 38 14 36 17 35 18 34 20 33 23 31 24 30 26 29 28 28 30 26 32 25 33 "
 205             "23 34 21 35 37 75 31 80 24 84 16 90 11 94 3 100-3 100-11 95-16 89-24 85-31 80-37"
 206             " 74-21 35-23 35-25 32-26 32-28 30-29 28-30 26-31 24-33 22-34 21-35 18-36 17-38 1"
 207             "4-39 13-39 10-42 9-85 12-91 4-91-4-86-12-41-9-40-10-39-13-37-14-36-17-35-18-34-2"
 208             "1-33-22-31-24-30-26-29-28-28-30-26-32-25-32-23-35-21-35-38-74-30-80-24-85-17-89-"
 209             "11-95-3-100 3-101 11-95 17-90 24-85 30-79 38-75 21-35 23-35 25-32 26-32 28-30 29"
 210             "-28 30-26 31-24 33-22 34-20 35-18 36-16 37-15 39-12 40-11z"_ustr;
 211         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting complex polygon to SVG-D",
 212                                sExportString2, aExport);
 213         CPPUNIT_ASSERT_MESSAGE("importing complex polygon from SVG-D (round-trip",
 214                                utils::importFromSvgD( aPoly, aExport, false, nullptr ));
 215         aExport = utils::exportToSvgD( aPoly, true, true, false );
 216         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting complex polygon to SVG-D (round-trip)",
 217                                sExportString2, aExport);
 218
 219         const B2DPolygon aRect(
 220             utils::createPolygonFromRect( B2DRange(0.0,0.0,4000.0,4000.0) ));
 221         aExport = utils::exportToSvgD( B2DPolyPolygon(aRect), false, false, false );
 222
 223         static constexpr OUString sExportStringRect = u"M0 0H4000V4000H0Z"_ustr;
 224         CPPUNIT_ASSERT_EQUAL_MESSAGE("exporting to rectangle svg-d string",
 225                                sExportStringRect, aExport);
 226     }
 227
 228     // Change the following lines only, if you add, remove or rename
 229     // member functions of the current class,
 230     // because these macros are need by auto register mechanism.
 231
 232     CPPUNIT_TEST_SUITE(SvgPathImportExport);
 233     CPPUNIT_TEST(testImportExport);
 234     CPPUNIT_TEST_SUITE_END();
 235 };
 236
 237 CPPUNIT_TEST_SUITE_REGISTRATION(basegfx::SvgPathImportExport);
 238
 239 }
 240
 241 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */