filter/qa/unit/svg.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <test/bootstrapfixture.hxx>
  11 #include <unotest/macros_test.hxx>
  12 #include <test/xmltesttools.hxx>
  13
  14 #include <com/sun/star/frame/Desktop.hpp>
  15 #include <com/sun/star/frame/XStorable.hpp>
  16 #include <com/sun/star/io/XOutputStream.hpp>
  17 #include <unotools/streamwrap.hxx>
  18 #include <unotools/mediadescriptor.hxx>
  19 #include <tools/stream.hxx>
  20
  21 using namespace ::com::sun::star;
  22
  23 char const DATA_DIRECTORY[] = "/filter/qa/unit/data/";
  24
  25 /// SVG filter tests.
  26 class SvgFilterTest : public test::BootstrapFixture, public unotest::MacrosTest, public XmlTestTools
  27 {
  28 private:
  29     uno::Reference<lang::XComponent> mxComponent;
  30
  31 public:
  32     void setUp() override;
  33     void tearDown() override;
  34     void registerNamespaces(xmlXPathContextPtr& pXmlXpathCtx) override;
  35     uno::Reference<lang::XComponent>& getComponent() { return mxComponent; }
  36     void load(const OUString& rURL);
  37 };
  38
  39 void SvgFilterTest::setUp()
  40 {
  41     test::BootstrapFixture::setUp();
  42
  43     mxDesktop.set(frame::Desktop::create(mxComponentContext));
  44 }
  45
  46 void SvgFilterTest::tearDown()
  47 {
  48     if (mxComponent.is())
  49         mxComponent->dispose();
  50
  51     test::BootstrapFixture::tearDown();
  52 }
  53
  54 void SvgFilterTest::load(const OUString& rFileName)
  55 {
  56     OUString aURL = m_directories.getURLFromSrc(DATA_DIRECTORY) + rFileName;
  57     mxComponent = loadFromDesktop(aURL);
  58 }
  59
  60 void SvgFilterTest::registerNamespaces(xmlXPathContextPtr& pXmlXpathCtx)
  61 {
  62     xmlXPathRegisterNs(pXmlXpathCtx, BAD_CAST("svg"), BAD_CAST("http://www.w3.org/2000/svg"));
  63 }
  64
  65 CPPUNIT_TEST_FIXTURE(SvgFilterTest, testPreserveJpg)
  66 {
  67 #if !defined(MACOSX)
  68     // Load a document with a jpeg image in it.
  69     load("preserve-jpg.odt");
  70
  71     // Select the image.
  72     dispatchCommand(getComponent(), ".uno:JumpToNextFrame", {});
  73
  74     // Export the selection to SVG.
  75     uno::Reference<frame::XStorable> xStorable(getComponent(), uno::UNO_QUERY_THROW);
  76     SvMemoryStream aStream;
  77     uno::Reference<io::XOutputStream> xOut = new utl::OOutputStreamWrapper(aStream);
  78     utl::MediaDescriptor aMediaDescriptor;
  79     aMediaDescriptor["FilterName"] <<= OUString("writer_svg_Export");
  80     aMediaDescriptor["SelectionOnly"] <<= true;
  81     aMediaDescriptor["OutputStream"] <<= xOut;
  82     xStorable->storeToURL("private:stream", aMediaDescriptor.getAsConstPropertyValueList());
  83     aStream.Seek(STREAM_SEEK_TO_BEGIN);
  84
  85     // Make sure that the original JPG data is reused and we don't perform a PNG re-compress.
  86     xmlDocUniquePtr pXmlDoc = parseXmlStream(&aStream);
  87     OUString aAttributeValue = getXPath(pXmlDoc, "//svg:image", "href");
  88
  89     // Without the accompanying fix in place, this test would have failed with:
  90     // - Expression: aAttributeValue.startsWith("data:image/jpeg")
  91     // i.e. the SVG export result re-compressed the image as PNG, even if the original and the
  92     // transformed image is the same, so there is no need for that.
  93     CPPUNIT_ASSERT(aAttributeValue.startsWith("data:image/jpeg"));
  94 #endif
  95 }
  96
  97 CPPUNIT_TEST_FIXTURE(SvgFilterTest, testSemiTransparentLine)
  98 {
  99     // Load a document with a semi-transparent line shape.
 100     load("semi-transparent-line.odg");
 101
 102     // Export it to SVG.
 103     uno::Reference<frame::XStorable> xStorable(getComponent(), uno::UNO_QUERY_THROW);
 104     SvMemoryStream aStream;
 105     uno::Reference<io::XOutputStream> xOut = new utl::OOutputStreamWrapper(aStream);
 106     utl::MediaDescriptor aMediaDescriptor;
 107     aMediaDescriptor["FilterName"] <<= OUString("draw_svg_Export");
 108     aMediaDescriptor["OutputStream"] <<= xOut;
 109     xStorable->storeToURL("private:stream", aMediaDescriptor.getAsConstPropertyValueList());
 110     aStream.Seek(STREAM_SEEK_TO_BEGIN);
 111
 112     // Get the style of the group around the actual <path> element.
 113     xmlDocUniquePtr pXmlDoc = parseXmlStream(&aStream);
 114     OUString aStyle = getXPath(
 115         pXmlDoc, "//svg:g[@class='com.sun.star.drawing.LineShape']/svg:g/svg:g", "style");
 116     OUString aPrefix("opacity: ");
 117     // Without the accompanying fix in place, this test would have failed, as the style was
 118     // "mask:url(#mask1)", not "opacity: <value>".
 119     CPPUNIT_ASSERT(aStyle.startsWith(aPrefix));
 120     int nPercent = std::round(aStyle.copy(aPrefix.getLength()).toDouble() * 100);
 121     // Make sure that the line is still 30% opaque, rather than completely invisible.
 122     CPPUNIT_ASSERT_EQUAL(30, nPercent);
 123 }
 124
 125 CPPUNIT_TEST_FIXTURE(SvgFilterTest, testSemiTransparentText)
 126 {
 127     // Two shapes, one with transparent text and the other one with
 128     // opaque text. We expect both to be exported to the SVG with the
 129     // correct transparency factor applied for the first shape.
 130
 131     // Load draw document with transparent text in one box
 132     load("TransparentText.odg");
 133
 134     // Export to SVG.
 135     uno::Reference<frame::XStorable> xStorable(getComponent(), uno::UNO_QUERY_THROW);
 136
 137     SvMemoryStream aStream;
 138     uno::Reference<io::XOutputStream> xOut = new utl::OOutputStreamWrapper(aStream);
 139     utl::MediaDescriptor aMediaDescriptor;
 140     aMediaDescriptor["FilterName"] <<= OUString("draw_svg_Export");
 141     aMediaDescriptor["OutputStream"] <<= xOut;
 142     xStorable->storeToURL("private:stream", aMediaDescriptor.getAsConstPropertyValueList());
 143     aStream.Seek(STREAM_SEEK_TO_BEGIN);
 144
 145     xmlDocUniquePtr pXmlDoc = parseXmlStream(&aStream);
 146
 147     // We expect 2 groups of class "TextShape" that
 148     // have some svg:text node inside.
 149     // Without the accompanying fix in place, this test would have failed with:
 150     // - Expected: 2
 151     // - Actual  : 1
 152     // i.e. the 2nd shape lots its text.
 153
 154     assertXPath(pXmlDoc, "//svg:g[@class='TextShape']//svg:text", 2);
 155
 156     // First shape has semi-transparent text.
 157     assertXPath(pXmlDoc, "//svg:text[1]/svg:tspan/svg:tspan/svg:tspan[@fill-opacity='0.8']");
 158
 159     // Second shape has normal text.
 160     assertXPath(pXmlDoc, "//svg:text[2]/svg:tspan/svg:tspan/svg:tspan[@fill-opacity]", 0);
 161 }
 162
 163 CPPUNIT_TEST_FIXTURE(SvgFilterTest, testShapeNographic)
 164 {
 165     // Load a document containing a 3D shape.
 166     load("shape-nographic.odp");
 167
 168     // Export to SVG.
 169     uno::Reference<frame::XStorable> xStorable(getComponent(), uno::UNO_QUERY_THROW);
 170     SvMemoryStream aStream;
 171     uno::Reference<io::XOutputStream> xOut = new utl::OOutputStreamWrapper(aStream);
 172     utl::MediaDescriptor aMediaDescriptor;
 173     aMediaDescriptor["FilterName"] <<= OUString("impress_svg_Export");
 174     aMediaDescriptor["OutputStream"] <<= xOut;
 175
 176     // Without the accompanying fix in place, this test would have failed with:
 177     // An uncaught exception of type com.sun.star.io.IOException
 178     // - SfxBaseModel::impl_store <private:stream> failed: 0xc10(Error Area:Io Class:Write Code:16)
 179     xStorable->storeToURL("private:stream", aMediaDescriptor.getAsConstPropertyValueList());
 180 }
 181
 182 CPPUNIT_TEST_FIXTURE(SvgFilterTest, testCustomBullet)
 183 {
 184     // Given a presentation with a custom bullet:
 185     load(u"custom-bullet.fodp");
 186
 187     // When exporting that to SVG:
 188     uno::Reference<frame::XStorable> xStorable(getComponent(), uno::UNO_QUERY_THROW);
 189     SvMemoryStream aStream;
 190     uno::Reference<io::XOutputStream> xOut = new utl::OOutputStreamWrapper(aStream);
 191     utl::MediaDescriptor aMediaDescriptor;
 192     aMediaDescriptor["FilterName"] <<= OUString("impress_svg_Export");
 193     aMediaDescriptor["OutputStream"] <<= xOut;
 194     xStorable->storeToURL("private:stream", aMediaDescriptor.getAsConstPropertyValueList());
 195
 196     // Then make sure the bullet glyph is not lost:
 197     aStream.Seek(STREAM_SEEK_TO_BEGIN);
 198     xmlDocUniquePtr pXmlDoc = parseXmlStream(&aStream);
 199     // Without the accompanying fix in place, this test would have failed with:
 200     // - Expected: 1
 201     // - Actual  : 0
 202     // - XPath '//svg:g[@class='BulletChars']//svg:path' number of nodes is incorrect
 203     // i.e. the custom bullet used '<use transform="scale(285,285)"
 204     // xlink:href="#bullet-char-template-45"/>', but nobody produced a bullet-char-template-45,
 205     // instead we need the path of the glyph inline.
 206     CPPUNIT_ASSERT(!getXPath(pXmlDoc, "//svg:g[@class='BulletChars']//svg:path", "d").isEmpty());
 207 }
 208
 209 CPPUNIT_TEST_FIXTURE(SvgFilterTest, attributeRedefinedTest)
 210 {
 211     // Load document containing empty paragraphs with ids.
 212     load("attributeRedefinedTest.odp");
 213
 214     // Export to SVG.
 215     uno::Reference<frame::XStorable> xStorable(getComponent(), uno::UNO_QUERY_THROW);
 216     SvMemoryStream aStream;
 217     uno::Reference<io::XOutputStream> xOut = new utl::OOutputStreamWrapper(aStream);
 218     utl::MediaDescriptor aMediaDescriptor;
 219     aMediaDescriptor["FilterName"] <<= OUString("impress_svg_Export");
 220     aMediaDescriptor["OutputStream"] <<= xOut;
 221     xStorable->storeToURL("private:stream", aMediaDescriptor.getAsConstPropertyValueList());
 222     aStream.Seek(STREAM_SEEK_TO_BEGIN);
 223
 224     xmlDocUniquePtr pXmlDoc = parseXmlStream(&aStream);
 225
 226     // We expect four paragraph
 227     // 2 empty paragraphs with ids
 228     // 2 paragraphs with text
 229     // Without the accompanying fix the test would have failed with
 230     // Expected : 4
 231     // Actual : 2
 232     // i.e. 2 of the empty paragraph do not get generated even if there
 233     // is id imported for the paragraphs
 234     // If we don't create the empty paragraphs the id attribute attribute gets redefined like this:
 235     // <tspan id="id14" id="id15" id="id17" class="TextParagraph" font-family="Bahnschrift Light" font-size="1129px" font-weight="400">
 236
 237     OString xPath = "//svg:g[@class='TextShape']//svg:text[@class='SVGTextShape']//"
 238                     "svg:tspan[@class='TextParagraph']";
 239     assertXPath(pXmlDoc, xPath, 4);
 240
 241     //assert that each tspan element with TextParagraph class has id and the tspan element of
 242     //each empty paragraph doesnot contain tspan element with class TextPosition
 243     assertXPath(pXmlDoc, xPath + "[1]", "id", "id4");
 244     assertXPath(pXmlDoc, xPath + "[2]", "id", "id5");
 245     assertXPath(pXmlDoc, xPath + "[2]//svg:tspan[@class='TextPosition']", 0);
 246     assertXPath(pXmlDoc, xPath + "[3]", "id", "id6");
 247     assertXPath(pXmlDoc, xPath + "[3]//svg:tspan[@class='TextPosition']", 0);
 248     assertXPath(pXmlDoc, xPath + "[4]", "id", "id7");
 249 }
 250
 251 CPPUNIT_PLUGIN_IMPLEMENT();
 252
 253 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */