diff options
Diffstat (limited to 'vcl/qa/cppunit/text.cxx')
| -rw-r--r-- | vcl/qa/cppunit/text.cxx | 752 |
1 files changed, 752 insertions, 0 deletions
diff --git a/vcl/qa/cppunit/text.cxx b/vcl/qa/cppunit/text.cxx new file mode 100644 index 000000000..823ffeabf --- /dev/null +++ b/vcl/qa/cppunit/text.cxx @@ -0,0 +1,752 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include <osl/file.hxx> +#include <osl/process.h> +#include <test/bootstrapfixture.hxx> +#include <sal/log.hxx> +#include <tools/stream.hxx> + +#include <vcl/BitmapReadAccess.hxx> +#include <vcl/errcode.hxx> +#include <vcl/graphicfilter.hxx> +#include <vcl/settings.hxx> +#include <vcl/svapp.hxx> +#include <vcl/virdev.hxx> + +#include <ImplLayoutArgs.hxx> +#include <TextLayoutCache.hxx> +#include <salgdi.hxx> + +class VclTextTest : public test::BootstrapFixture +{ + // if enabled - check the result images with: + // "xdg-open ./workdir/CppunitTest/vcl_text_test.test.core/" + static constexpr const bool mbExportBitmap = false; + + void exportDevice(const OUString& filename, const VclPtr<VirtualDevice>& device) + { + if (mbExportBitmap) + { + BitmapEx aBitmapEx(device->GetBitmapEx(Point(0, 0), device->GetOutputSizePixel())); + OUString cwd; + CPPUNIT_ASSERT_EQUAL(osl_Process_E_None, osl_getProcessWorkingDir(&cwd.pData)); + OUString url; + CPPUNIT_ASSERT_EQUAL(osl::FileBase::E_None, + osl::FileBase::getAbsoluteFileURL(cwd, filename, url)); + SvFileStream aStream(url, StreamMode::WRITE | StreamMode::TRUNC); + CPPUNIT_ASSERT_EQUAL( + ERRCODE_NONE, GraphicFilter::GetGraphicFilter().compressAsPNG(aBitmapEx, aStream)); + } + } + +public: + VclTextTest() + : BootstrapFixture(true, false) + { + } + + void testSimpleText(); + void testVerticalText(); + void testTextLayoutCache(); + void testImplLayoutRuns_AddPos(); + void testImplLayoutRuns_AddRuns(); + void testImplLayoutRuns_PosIsInRun(); + void testImplLayoutRuns_PosIsInAnyRun(); + void testImplLayoutArgsBiDiStrong(); + void testImplLayoutArgsBiDiRtl(); + void testImplLayoutArgsRightAlign(); + void testImplLayoutArgs_PrepareFallback_precalculatedglyphs(); + + CPPUNIT_TEST_SUITE(VclTextTest); + CPPUNIT_TEST(testSimpleText); + CPPUNIT_TEST(testVerticalText); + CPPUNIT_TEST(testTextLayoutCache); + CPPUNIT_TEST(testImplLayoutRuns_AddPos); + CPPUNIT_TEST(testImplLayoutRuns_AddRuns); + CPPUNIT_TEST(testImplLayoutRuns_PosIsInRun); + CPPUNIT_TEST(testImplLayoutRuns_PosIsInAnyRun); + CPPUNIT_TEST(testImplLayoutArgsBiDiStrong); + CPPUNIT_TEST(testImplLayoutArgsBiDiRtl); + CPPUNIT_TEST(testImplLayoutArgsRightAlign); + CPPUNIT_TEST(testImplLayoutArgs_PrepareFallback_precalculatedglyphs); + CPPUNIT_TEST_SUITE_END(); +}; + +// Avoid issues when colorized antialiasing generates slightly tinted rather than truly black +// pixels: +static bool isBlack(Color col) +{ + return col.GetRed() < 25 && col.GetGreen() < 25 && col.GetBlue() < 25; +} + +// Return pixel width of the base of the given character located above +// the starting position. +// In other words, go up in y direction until a black pixel is found, +// then return the horizontal width of the area of those pixels. +// For 'L' this gives the width of the base of the character. +static tools::Long getCharacterBaseWidth(VirtualDevice* device, const Point& start) +{ + Bitmap bitmap = device->GetBitmap(Point(), device->GetOutputSizePixel()); + Bitmap::ScopedReadAccess access(bitmap); + tools::Long y = start.Y(); + while (y >= 0 && !isBlack(access->GetColor(y, start.X()))) + --y; + if (y < 0) + return -1; + tools::Long xmin = start.X(); + while (xmin >= 0 && access->GetColor(y, xmin) != COL_WHITE) + --xmin; + tools::Long xmax = start.X(); + while (xmax < bitmap.GetSizePixel().Width() && access->GetColor(y, xmax) != COL_WHITE) + ++xmax; + return xmax - xmin + 1; +} + +// Similar to above but this time from the top, for U+30E8 (it's straight at the top, not at the bottom). +static tools::Long getCharacterTopWidth(VirtualDevice* device, const Point& start) +{ + Bitmap bitmap = device->GetBitmap(Point(), device->GetOutputSizePixel()); + Bitmap::ScopedReadAccess access(bitmap); + tools::Long y = start.Y(); + while (y < bitmap.GetSizePixel().Height() && !isBlack(access->GetColor(y, start.X()))) + ++y; + if (y >= bitmap.GetSizePixel().Height()) + return -1; + tools::Long xmin = start.X(); + while (xmin >= 0 && access->GetColor(y, xmin) != COL_WHITE) + --xmin; + tools::Long xmax = start.X(); + while (xmax < bitmap.GetSizePixel().Width() && access->GetColor(y, xmax) != COL_WHITE) + ++xmax; + return xmax - xmin + 1; +} + +// Similar to above, but this time return the pixel height of the left-most +// line of the character, going right from the starting point. +// For 'L' this gives the height of the left line. +static tools::Long getCharacterLeftSideHeight(VirtualDevice* device, const Point& start) +{ + Bitmap bitmap = device->GetBitmap(Point(), device->GetOutputSizePixel()); + Bitmap::ScopedReadAccess access(bitmap); + tools::Long x = start.X(); + while (x < bitmap.GetSizePixel().Width() && !isBlack(access->GetColor(start.Y(), x))) + ++x; + if (x >= bitmap.GetSizePixel().Width()) + return -1; + tools::Long ymin = start.Y(); + while (ymin >= 0 && access->GetColor(ymin, x) != COL_WHITE) + --ymin; + tools::Long ymax = start.Y(); + while (ymax < bitmap.GetSizePixel().Width() && access->GetColor(ymax, x) != COL_WHITE) + ++ymax; + return ymax - ymin + 1; +} + +// The same, but from the right side, for U+30E8 (it's straight on the right side, not the left one). +static tools::Long getCharacterRightSideHeight(VirtualDevice* device, const Point& start) +{ + Bitmap bitmap = device->GetBitmap(Point(), device->GetOutputSizePixel()); + Bitmap::ScopedReadAccess access(bitmap); + tools::Long x = start.X(); + while (x >= 0 && !isBlack(access->GetColor(start.Y(), x))) + --x; + if (x < 0) + return -1; + tools::Long ymin = start.Y(); + while (ymin >= 0 && access->GetColor(ymin, x) != COL_WHITE) + --ymin; + tools::Long ymax = start.Y(); + while (ymax < bitmap.GetSizePixel().Width() && access->GetColor(ymax, x) != COL_WHITE) + ++ymax; + return ymax - ymin + 1; +} + +// Test rendering of the 'L' character (chosen because L is a simple shape). +// Check things like using a double font size doubling the size of the character, correct rotation, etc. +// IMPORTANT: If you modify this, check also the testVerticalText(). +void VclTextTest::testSimpleText() +{ + OUString text("L"); + ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT); + device->SetOutputSizePixel(Size(100, 100)); + device->SetBackground(Wallpaper(COL_WHITE)); + // Disable AA, to make all pixels be black or white. + device->SetAntialiasing(AntialiasingFlags::DisableText); + + // Bail out on all backends that do not work (or I didn't test). Opt-out rather than opt-in + // to make sure new backends fail initially. + if (device->GetGraphics()->getRenderBackendName() == "qt5" + || device->GetGraphics()->getRenderBackendName() == "qt5svp" + || device->GetGraphics()->getRenderBackendName() == "gtk3svp" + || device->GetGraphics()->getRenderBackendName() == "aqua" + || device->GetGraphics()->getRenderBackendName() == "gen" + || device->GetGraphics()->getRenderBackendName() == "genpsp") + return; + + // Use Dejavu fonts, they are shipped with LO, so they should be ~always available. + // Use Sans variant for simpler glyph shapes (no serifs). + vcl::Font font("DejaVu Sans", "Book", Size(0, 36)); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(10, 10), text); + exportDevice("simple-text-36.png", device); + // Height of 'L' with font 36 size should be roughly 28 pixels. + // Use the 'doubles' variant of the test, since that one allows + // a delta, and allow several pixels of delta to account + // for different rendering methods and whatnot. + tools::Long height36 = getCharacterLeftSideHeight(device, Point(0, 30)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(tools::Long(28), height36, 4); + tools::Long width36 = getCharacterBaseWidth(device, Point(20, 99)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(tools::Long(19), width36, 4); + + font.SetOrientation(2700_deg10); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(90, 10), text); + exportDevice("simple-text-36-270deg.png", device); + // Width and height here should be swapped, again allowing for some imprecisions. + tools::Long height36Rotated = getCharacterLeftSideHeight(device, Point(0, 20)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36, height36Rotated, 2); + tools::Long width36Rotated = getCharacterTopWidth(device, Point(70, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36, width36Rotated, 2); + + font = vcl::Font("DejaVu Sans", "Book", Size(0, 72)); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(10, 10), text); + exportDevice("simple-text-72.png", device); + // Font size is doubled, so pixel sizes should also roughly double. + tools::Long height72 = getCharacterLeftSideHeight(device, Point(0, 30)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36 * 2, height72, 4); + tools::Long width72 = getCharacterBaseWidth(device, Point(20, 99)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36 * 2, width72, 4); + + font.SetOrientation(2700_deg10); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(90, 10), text); + exportDevice("simple-text-72-270deg.png", device); + tools::Long height72Rotated = getCharacterLeftSideHeight(device, Point(0, 35)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width72, height72Rotated, 2); + tools::Long width72Rotated = getCharacterTopWidth(device, Point(50, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height72, width72Rotated, 2); + + // Test width scaled to 200%. + font = vcl::Font("DejaVu Sans", "Book", Size(72, 36)); +#ifdef _WIN32 + // TODO: What is the proper way to draw 200%-wide text? This is needed on Windows + // but it breaks Linux. + font.SetAverageFontWidth(2 * font.GetOrCalculateAverageFontWidth()); +#endif + device->Erase(); + device->SetFont(font); + device->DrawText(Point(10, 10), text); + exportDevice("simple-text-36-200pct.png", device); + tools::Long height36pct200 = getCharacterLeftSideHeight(device, Point(0, 30)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36, height36pct200, 2); + tools::Long width36pct200 = getCharacterBaseWidth(device, Point(20, 99)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36 * 2, width36pct200, 4); + + // Test width scaled to 50%. + font = vcl::Font("DejaVu Sans", "Book", Size(18, 36)); +#ifdef _WIN32 + font.SetAverageFontWidth(0.5 * font.GetOrCalculateAverageFontWidth()); +#endif + device->Erase(); + device->SetFont(font); + device->DrawText(Point(10, 10), text); + exportDevice("simple-text-36-50pct.png", device); + tools::Long height36pct50 = getCharacterLeftSideHeight(device, Point(0, 30)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36, height36pct50, 2); + tools::Long width36pct50 = getCharacterBaseWidth(device, Point(15, 99)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36 / 2, width36pct50, 2); +} + +// Like testSimpleText() but for a vertical character, here namely U+30E8 (katakana letter yo), +// chosen because it's a fairly simple shape (looks like horizontally mirrored E) that should +// have the right and top lines being straight. Well, and also chosen because I actually +// do not have much clue about CJK. +// IMPORTANT: If you modify this, modify also the testSimpleText(). +void VclTextTest::testVerticalText() +{ + OUString text(u"\x30e8"); + ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT); + device->SetOutputSizePixel(Size(100, 100)); + device->SetBackground(Wallpaper(COL_WHITE)); + // Disable AA, to make all pixels be black or white. + device->SetAntialiasing(AntialiasingFlags::DisableText); + + // Bail out on all backends that do not work (or I didn't test). Opt-out rather than opt-in + // to make sure new backends fail initially. + if (device->GetGraphics()->getRenderBackendName() == "qt5" + || device->GetGraphics()->getRenderBackendName() == "qt5svp" + || device->GetGraphics()->getRenderBackendName() == "gtk3svp" + || device->GetGraphics()->getRenderBackendName() == "aqua" + || device->GetGraphics()->getRenderBackendName() == "gen" +#ifdef MACOSX // vertical fonts are broken on Mac with or without Skia + || device->GetGraphics()->getRenderBackendName() == "skia" +#endif + || device->GetGraphics()->getRenderBackendName() == "genpsp") + return; + + // We do not ship any CJK fonts, so try to find a common one that is usable for the test. + vcl::Font baseFont; + vcl::Font font; + bool fontFound = false; + for (const char* ptrfontName : + { "Droid Sans Japanese", "Baekmuk Gulim", "Microsoft JhengHei", "Microsoft YaHei", + "MS PGothic", "Hiragino Sans", "Arial Unicode MS" }) + { + OUString fontName = OUString::fromUtf8(ptrfontName); + if (!device->IsFontAvailable(fontName)) + continue; + baseFont = vcl::Font(fontName, "Book", Size(0, 36)); + baseFont.SetLanguage(LANGUAGE_JAPANESE); + baseFont.SetVertical(true); + baseFont.SetOrientation(2700_deg10); + if (device->HasGlyphs(baseFont, text) == -1) // -1 means no glyph is missing + { + fontFound = true; + break; + } + } + if (!fontFound) + { + SAL_WARN("vcl", "Could not find a font for VclTextTest::testVerticalText, skipping test."); + return; + } + + font = baseFont; + font.SetFontSize(Size(0, 36)); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(90, 10), text); + exportDevice("vertical-text-36.png", device); + // Height of U+30E8 with font 36 size should be roughly 28 pixels, + // but since we don't know which font will be used, allow even more range. + tools::Long height36 = getCharacterRightSideHeight(device, Point(99, 22)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(tools::Long(28), height36, 6); + tools::Long width36 = getCharacterTopWidth(device, Point(65, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(tools::Long(25), width36, 6); + + // Horizontal writing of vertical glyphs. For some reason in this case + // the font is not set to be vertical. + font.SetOrientation(0_deg10); + font.SetVertical(false); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(10, 10), text); + exportDevice("vertical-text-36-0deg.png", device); + // Here width and height should be the same, since the glyphs actually + // not rotated compared to the vertical writing. + tools::Long height36Rotated = getCharacterRightSideHeight(device, Point(99, 35)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36, height36Rotated, 1); + tools::Long width36Rotated = getCharacterTopWidth(device, Point(25, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36, width36Rotated, 1); + + font = baseFont; + font.SetFontSize(Size(0, 72)); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(90, 10), text); + exportDevice("vertical-text-72.png", device); + // Font size is doubled, so pixel sizes should also roughly double. + tools::Long height72 = getCharacterRightSideHeight(device, Point(99, 35)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36 * 2, height72, 4); + tools::Long width72 = getCharacterTopWidth(device, Point(40, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36 * 2, width72, 4); + + font.SetOrientation(0_deg10); + font.SetVertical(false); + device->Erase(); + device->SetFont(font); + device->DrawText(Point(10, 10), text); + exportDevice("vertical-text-72-0deg.png", device); + tools::Long height72Rotated = getCharacterRightSideHeight(device, Point(99, 60)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height72, height72Rotated, 1); + tools::Long width72Rotated = getCharacterTopWidth(device, Point(45, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width72, width72Rotated, 1); + + // On Windows scaling of vertical glyphs is broken. + if (device->GetGraphics()->getRenderBackendName() == "gdi") + return; + + // Test width scaled to 200%. + font = baseFont; + font.SetFontSize(Size(72, 36)); +#ifdef _WIN32 + // TODO: What is the proper way to draw 200%-wide text? This is needed on Windows + // but it breaks Linux. + font.SetAverageFontWidth(2 * font.GetOrCalculateAverageFontWidth()); +#endif + device->Erase(); + device->SetFont(font); + device->DrawText(Point(90, 10), text); + // Double "width" with vertical text makes the height doubled. + exportDevice("vertical-text-36-200pct.png", device); + tools::Long height36pct200 = getCharacterRightSideHeight(device, Point(99, 35)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36 * 2, height36pct200, 4); + tools::Long width36pct200 = getCharacterTopWidth(device, Point(65, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36, width36pct200, 2); + + // Test width scaled to 50%. + font = baseFont; + font.SetFontSize(Size(18, 36)); +#ifdef _WIN32 + font.SetAverageFontWidth(0.5 * font.GetOrCalculateAverageFontWidth()); +#endif + device->Erase(); + device->SetFont(font); + device->DrawText(Point(90, 10), text); + exportDevice("vertical-text-36-50pct.png", device); + tools::Long height36pct50 = getCharacterRightSideHeight(device, Point(99, 16)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(height36 / 2, height36pct50, 2); + tools::Long width36pct50 = getCharacterTopWidth(device, Point(65, 0)); + CPPUNIT_ASSERT_DOUBLES_EQUAL(width36, width36pct50, 2); +} + +void VclTextTest::testTextLayoutCache() +{ + OUString sTestString = u"The quick brown fox\n jumped over the lazy dogالعاشر"; + vcl::text::TextLayoutCache cache(sTestString.getStr(), sTestString.getLength()); + + vcl::text::Run run1 = cache.runs[0]; + vcl::text::Run run2 = cache.runs[1]; + + bool bCorrectRuns = (cache.runs.size() == 2); + CPPUNIT_ASSERT_MESSAGE("Wrong number of runs", bCorrectRuns); + CPPUNIT_ASSERT_EQUAL(USCRIPT_LATIN, run1.nCode); + CPPUNIT_ASSERT_EQUAL(0, run1.nStart); + CPPUNIT_ASSERT_EQUAL(45, run1.nEnd); + CPPUNIT_ASSERT_EQUAL(USCRIPT_ARABIC, run2.nCode); + CPPUNIT_ASSERT_EQUAL(45, run2.nStart); + CPPUNIT_ASSERT_EQUAL(51, run2.nEnd); +} + +void VclTextTest::testImplLayoutRuns_AddPos() +{ + ImplLayoutRuns aRuns; + aRuns.AddPos(1, false); + aRuns.AddPos(2, false); + aRuns.AddPos(3, false); + aRuns.AddPos(4, true); // add RTL marker glyph + aRuns.AddPos(5, false); + aRuns.AddPos(6, true); // add RTL marker glyph + aRuns.AddPos(7, false); + + int nCharPos(0); + bool bRightToLeftMarker(false); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(1, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(2, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(3, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(4, nCharPos); + CPPUNIT_ASSERT(bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(5, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(6, nCharPos); + CPPUNIT_ASSERT(bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(7, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + // no next position, we are running off the end + CPPUNIT_ASSERT(!aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + + aRuns.ResetPos(); + + int nMinRunPos, nEndRunPos; + bool bRightToLeft(false); + + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(1, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(4, nEndRunPos); + CPPUNIT_ASSERT(!bRightToLeft); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(4, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(5, nEndRunPos); + CPPUNIT_ASSERT(bRightToLeft); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(5, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(6, nEndRunPos); + CPPUNIT_ASSERT(!bRightToLeft); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(6, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(7, nEndRunPos); + CPPUNIT_ASSERT(bRightToLeft); + + // test clear + aRuns.Clear(); + CPPUNIT_ASSERT(aRuns.IsEmpty()); +} + +void VclTextTest::testImplLayoutRuns_AddRuns() +{ + ImplLayoutRuns aRuns; + aRuns.AddRun(1, 4, false); + aRuns.AddRun(5, 4, true); + aRuns.AddRun(5, 6, false); + aRuns.AddRun(6, 7, true); + + int nCharPos(0); + bool bRightToLeftMarker(false); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(1, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(2, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(3, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(4, nCharPos); + CPPUNIT_ASSERT(bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(5, nCharPos); + CPPUNIT_ASSERT(!bRightToLeftMarker); + + CPPUNIT_ASSERT(aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + CPPUNIT_ASSERT_EQUAL(6, nCharPos); + CPPUNIT_ASSERT(bRightToLeftMarker); + + // no next position, we are running off the end + CPPUNIT_ASSERT(!aRuns.GetNextPos(&nCharPos, &bRightToLeftMarker)); + + aRuns.ResetPos(); + + int nMinRunPos, nEndRunPos; + bool bRightToLeft(false); + + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(1, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(4, nEndRunPos); + CPPUNIT_ASSERT(!bRightToLeft); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(4, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(5, nEndRunPos); + CPPUNIT_ASSERT(bRightToLeft); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(5, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(6, nEndRunPos); + CPPUNIT_ASSERT(!bRightToLeft); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.GetRun(&nMinRunPos, &nEndRunPos, &bRightToLeft)); + CPPUNIT_ASSERT_EQUAL(6, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(7, nEndRunPos); + CPPUNIT_ASSERT(bRightToLeft); +} + +void VclTextTest::testImplLayoutRuns_PosIsInRun() +{ + ImplLayoutRuns aRuns; + aRuns.AddRun(1, 4, false); + aRuns.AddRun(4, 5, true); + aRuns.AddRun(5, 6, false); + aRuns.AddRun(6, 7, true); + + CPPUNIT_ASSERT(aRuns.PosIsInRun(1)); + CPPUNIT_ASSERT(aRuns.PosIsInRun(2)); + CPPUNIT_ASSERT(aRuns.PosIsInRun(3)); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.PosIsInRun(4)); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.PosIsInRun(5)); + + aRuns.NextRun(); + CPPUNIT_ASSERT(aRuns.PosIsInRun(6)); + + CPPUNIT_ASSERT(!aRuns.PosIsInRun(7)); +} + +void VclTextTest::testImplLayoutRuns_PosIsInAnyRun() +{ + ImplLayoutRuns aRuns; + aRuns.AddRun(1, 4, false); + aRuns.AddRun(4, 5, true); + aRuns.AddRun(5, 6, false); + aRuns.AddRun(6, 7, true); + + CPPUNIT_ASSERT(aRuns.PosIsInAnyRun(1)); + CPPUNIT_ASSERT(!aRuns.PosIsInAnyRun(7)); +} + +void VclTextTest::testImplLayoutArgsBiDiStrong() +{ + OUString sTestString = u"The quick brown fox\n jumped over the lazy dog" + "العاشر"; + vcl::text::ImplLayoutArgs aArgs(sTestString, 0, sTestString.getLength(), + SalLayoutFlags::BiDiStrong, LanguageTag(LANGUAGE_NONE), + nullptr); + + int nMinRunPos(0); + int nEndRunPos(0); + bool bRTL(false); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(0, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(19, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(20, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(51, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(20, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(51, nEndRunPos); +} + +void VclTextTest::testImplLayoutArgsBiDiRtl() +{ + OUString sTestString = u"The quick brown fox\n jumped over the lazy dog" + "العاشر"; + vcl::text::ImplLayoutArgs aArgs(sTestString, 0, sTestString.getLength(), + SalLayoutFlags::BiDiRtl, LanguageTag(LANGUAGE_NONE), nullptr); + + int nMinRunPos(0); + int nEndRunPos(0); + bool bRTL(false); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(45, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(51, nEndRunPos); + CPPUNIT_ASSERT(&bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(21, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(45, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(20, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(21, nEndRunPos); + CPPUNIT_ASSERT(bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(0, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(19, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); +} + +void VclTextTest::testImplLayoutArgsRightAlign() +{ + OUString sTestString = u"The quick brown fox\n jumped over the lazy dog" + "العاشر"; + vcl::text::ImplLayoutArgs aArgs(sTestString, 0, sTestString.getLength(), + SalLayoutFlags::RightAlign, LanguageTag(LANGUAGE_NONE), + nullptr); + + int nMinRunPos(0); + int nEndRunPos(0); + bool bRTL(false); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(0, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(19, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(20, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(45, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(45, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(51, nEndRunPos); + CPPUNIT_ASSERT(bRTL); +} + +void VclTextTest::testImplLayoutArgs_PrepareFallback_precalculatedglyphs() +{ + // this font has no Cyrillic characters and thus needs fallback + const vcl::Font aFont("KacstBook", Size(0, 36)); + + ScopedVclPtrInstance<VirtualDevice> pVirDev; + pVirDev->SetFont(aFont); + + const OString sUTF8String(u8"Тхе яуицк\n ыумпед овер"); + const OUString sTestString(OUString::fromUtf8(sUTF8String)); + std::unique_ptr<SalLayout> pLayout + = pVirDev->ImplLayout(sTestString, 0, sTestString.getLength(), Point(0, 0), 0, {}, + SalLayoutFlags::GlyphItemsOnly); + SalLayoutGlyphs aGlyphs = pLayout->GetGlyphs(); + SalLayoutGlyphsImpl* pGlyphsImpl = aGlyphs.Impl(1); + + vcl::text::ImplLayoutArgs aArgs(sTestString, 0, sTestString.getLength(), + SalLayoutFlags::BiDiRtl, LanguageTag(LANGUAGE_RUSSIAN), + nullptr); + + aArgs.PrepareFallback(pGlyphsImpl); + + int nMinRunPos(0); + int nEndRunPos(0); + bool bRTL(false); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(0, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(3, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(4, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(9, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(11, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(17, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); + + aArgs.GetNextRun(&nMinRunPos, &nEndRunPos, &bRTL); + CPPUNIT_ASSERT_EQUAL(18, nMinRunPos); + CPPUNIT_ASSERT_EQUAL(22, nEndRunPos); + CPPUNIT_ASSERT(!bRTL); +} + +CPPUNIT_TEST_SUITE_REGISTRATION(VclTextTest); + +CPPUNIT_PLUGIN_IMPLEMENT(); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |