vcl/qa/cppunit/complextext.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 <config_features.h>
  11
  12 #include <ostream>
  13 #include <vector>
  14 #include <tools/long.hxx>
  15
  16 #if HAVE_MORE_FONTS
  17 // must be declared before inclusion of test/bootstrapfixture.hxx
  18 static std::ostream& operator<<(std::ostream& rStream, const std::vector<tools::Long>& rVec);
  19 #endif
  20 #include <test/bootstrapfixture.hxx>
  21
  22 #include <vcl/wrkwin.hxx>
  23 #include <vcl/virdev.hxx>
  24 // workaround MSVC2015 issue with std::unique_ptr
  25 #include <sallayout.hxx>
  26 #include <salgdi.hxx>
  27
  28 #if HAVE_MORE_FONTS
  29 static std::ostream& operator<<(std::ostream& rStream, const std::vector<tools::Long>& rVec)
  30 {
  31     rStream << "{ ";
  32     for (size_t i = 0; i < rVec.size() - 1; i++)
  33         rStream << rVec[i] << ", ";
  34     rStream << rVec.back();
  35     rStream << " }";
  36     return rStream;
  37 }
  38 #endif
  39
  40 class VclComplexTextTest : public test::BootstrapFixture
  41 {
  42 public:
  43     VclComplexTextTest() : BootstrapFixture(true, false) {}
  44
  45     /// Play with font measuring etc.
  46     void testArabic();
  47     void testKashida();
  48     void testTdf95650(); // Windows-only issue
  49
  50     CPPUNIT_TEST_SUITE(VclComplexTextTest);
  51     CPPUNIT_TEST(testArabic);
  52     CPPUNIT_TEST(testKashida);
  53     CPPUNIT_TEST(testTdf95650);
  54     CPPUNIT_TEST_SUITE_END();
  55 };
  56
  57 void VclComplexTextTest::testArabic()
  58 {
  59 #if HAVE_MORE_FONTS
  60     const unsigned char pOneTwoThreeUTF8[] = {
  61         0xd9, 0x88, 0xd8, 0xa7, 0xd8, 0xad, 0xd9, 0x90,
  62         0xd8, 0xaf, 0xd9, 0x92, 0x20, 0xd8, 0xa5, 0xd8,
  63         0xab, 0xd9, 0x8d, 0xd9, 0x86, 0xd9, 0x8a, 0xd9,
  64         0x86, 0x20, 0xd8, 0xab, 0xd9, 0x84, 0xd8, 0xa7,
  65         0xd8, 0xab, 0xd8, 0xa9, 0xd9, 0x8c, 0x00
  66     };
  67     OUString aOneTwoThree( reinterpret_cast<char const *>(pOneTwoThreeUTF8),
  68                            SAL_N_ELEMENTS( pOneTwoThreeUTF8 ) - 1,
  69                            RTL_TEXTENCODING_UTF8 );
  70     ScopedVclPtrInstance<WorkWindow> pWin(static_cast<vcl::Window *>(nullptr));
  71     CPPUNIT_ASSERT( pWin );
  72
  73     vcl::Font aFont("DejaVu Sans", "Book", Size(0, 12));
  74
  75     OutputDevice *pOutDev = pWin.get();
  76     pOutDev->SetFont( aFont );
  77
  78     // absolute character widths AKA text array.
  79     std::vector<tools::Long> aRefCharWidths {6,  9,  16, 16, 22, 22, 26, 29, 32, 32,
  80                                       36, 40, 49, 53, 56, 63, 63, 66, 72, 72};
  81     std::vector<tools::Long> aCharWidths(aOneTwoThree.getLength(), 0);
  82     tools::Long nTextWidth = pOutDev->GetTextArray(aOneTwoThree, aCharWidths.data());
  83
  84     CPPUNIT_ASSERT_EQUAL(aRefCharWidths, aCharWidths);
  85     // this sporadically returns 75 or 74 on some of the windows tinderboxes eg. tb73
  86     CPPUNIT_ASSERT_EQUAL(tools::Long(72), nTextWidth);
  87     CPPUNIT_ASSERT_EQUAL(nTextWidth, aCharWidths.back());
  88
  89     // text advance width and line height
  90     CPPUNIT_ASSERT_EQUAL(tools::Long(72), pOutDev->GetTextWidth(aOneTwoThree));
  91     CPPUNIT_ASSERT_EQUAL(tools::Long(14), pOutDev->GetTextHeight());
  92
  93     // exact bounding rectangle, not essentially the same as text width/height
  94     tools::Rectangle aBoundRect;
  95     pOutDev->GetTextBoundRect(aBoundRect, aOneTwoThree);
  96     CPPUNIT_ASSERT_DOUBLES_EQUAL(0, aBoundRect.getX(), 1); // This sometimes equals to 1
  97     CPPUNIT_ASSERT_DOUBLES_EQUAL(1, aBoundRect.getY(), 1);
  98     CPPUNIT_ASSERT_DOUBLES_EQUAL(71, aBoundRect.getWidth(), 1); // This sometimes equals to 70
  99     CPPUNIT_ASSERT_DOUBLES_EQUAL(15, aBoundRect.getHeight(), 1);
 100
 101 #if 0
 102     // FIXME: This seems to be wishful thinking, GetTextRect() does not take
 103     // rotation into account.
 104
 105     // normal orientation
 106     tools::Rectangle aInput;
 107     tools::Rectangle aRect = pOutDev->GetTextRect( aInput, aOneTwoThree );
 108
 109     // now rotate 270 degrees
 110     vcl::Font aRotated( aFont );
 111     aRotated.SetOrientation( 2700 );
 112     pOutDev->SetFont( aRotated );
 113     tools::Rectangle aRectRot = pOutDev->GetTextRect( aInput, aOneTwoThree );
 114
 115     // Check that we did do the rotation...
 116     fprintf( stderr, "%" SAL_PRIdINT64 " %" SAL_PRIdINT64 " %" SAL_PRIdINT64 " %" SAL_PRIdINT64 "\n",
 117              sal_Int64(aRect.GetWidth()), sal_Int64(aRect.GetHeight()),
 118              sal-Int64(aRectRot.GetWidth()), sal_Int64(aRectRot.GetHeight()) );
 119     CPPUNIT_ASSERT( aRectRot.GetWidth() == aRect.GetHeight() );
 120     CPPUNIT_ASSERT( aRectRot.GetHeight() == aRect.GetWidth() );
 121 #endif
 122 #endif
 123 }
 124
 125 void VclComplexTextTest::testKashida()
 126 {
 127 #if HAVE_MORE_FONTS
 128     // Cache the glyph list of some Arabic text.
 129     ScopedVclPtrInstance<VirtualDevice> pOutputDevice;
 130     auto aText
 131         = OUString::fromUtf8(u8"ﻊﻨﺻﺭ ﺎﻠﻓﻮﺴﻓﻭﺭ ﻊﻨﺻﺭ ﻒﻟﺰﻳ ﺺﻠﺑ. ﺖﺘﻛﻮﻧ ﺎﻟﺩﻭﺭﺓ ﺎﻟﺭﺎﺒﻋﺓ ﻢﻧ ١٥ ﻊﻨﺻﺭﺍ.");
 132     std::unique_ptr<SalLayout> pLayout = pOutputDevice->ImplLayout(
 133         aText, 0, aText.getLength(), Point(0, 0), 0, nullptr, SalLayoutFlags::GlyphItemsOnly);
 134     const SalLayoutGlyphs* pGlyphs = pLayout->GetGlyphs();
 135     if (!pGlyphs)
 136         // Failed in some non-interesting ways.
 137         return;
 138     SalLayoutGlyphs aGlyphs = *pGlyphs;
 139
 140     // Now lay it out using the cached glyph list.
 141     ImplLayoutArgs aLayoutArgs(aText, 0, aText.getLength(), SalLayoutFlags::NONE,
 142                                pOutputDevice->GetFont().GetLanguageTag(), nullptr);
 143     pLayout = pOutputDevice->GetGraphics()->GetTextLayout(0);
 144     CPPUNIT_ASSERT(pLayout->LayoutText(aLayoutArgs, &aGlyphs));
 145
 146     // Without the accompanying fix in place, this test would have failed with 'assertion failed'.
 147     // The kashida justification flag was lost when going via the glyph cache.
 148     CPPUNIT_ASSERT(aLayoutArgs.mnFlags & SalLayoutFlags::KashidaJustification);
 149 #endif
 150 }
 151
 152 void VclComplexTextTest::testTdf95650()
 153 {
 154     const sal_Unicode pTxt[] = {
 155         0x0131, 0x0302, 0x0504, 0x4E44, 0x3031, 0x3030, 0x3531, 0x2D30,
 156         0x3037, 0x0706, 0x0908, 0x0B0A, 0x0D0C, 0x0F0E, 0x072E, 0x100A,
 157         0x0D11, 0x1312, 0x0105, 0x020A, 0x0512, 0x1403, 0x030C, 0x1528,
 158         0x2931, 0x632E, 0x7074, 0x0D20, 0x0E0A, 0x100A, 0xF00D, 0x0D20,
 159         0x030A, 0x0C0B, 0x20E0, 0x0A0D
 160     };
 161     OUString aTxt(pTxt, SAL_N_ELEMENTS(pTxt) - 1);
 162     ScopedVclPtrInstance<WorkWindow> pWin(static_cast<vcl::Window *>(nullptr));
 163     CPPUNIT_ASSERT(pWin);
 164
 165     OutputDevice *pOutDev = pWin.get();
 166     // Check that the following executes without failing assertion
 167     pOutDev->ImplLayout(aTxt, 9, 1, Point(), 0, nullptr, SalLayoutFlags::BiDiRtl);
 168 }
 169
 170 CPPUNIT_TEST_SUITE_REGISTRATION(VclComplexTextTest);
 171
 172 CPPUNIT_PLUGIN_IMPLEMENT();
 173
 174 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */