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loongoffice/vcl/qa/cppunit/text.cxx
Chris Sherlock 9157281deb vcl: add test for an invalid index in OutputDevice::GetTextBreak() 
Change-Id: I0b534e42e041972ad2f92e789fc757e949a33d4e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158394
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
2023-12-28 02:12:38 +01:00

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/* -*- 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 <comphelper/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;
public:
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));
}
}
VclTextTest()
: BootstrapFixture(true, false)
{
}
};
// 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());
BitmapScopedReadAccess 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());
BitmapScopedReadAccess 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());
BitmapScopedReadAccess 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;
}
// 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 VclCjkTextTest::testVerticalText().
CPPUNIT_TEST_FIXTURE(VclTextTest, testSimpleText)
{
OUString text("L");
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
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, 5);
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, 5);
// 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, 40));
CPPUNIT_ASSERT_DOUBLES_EQUAL(height36, height36pct50, 2);
tools::Long width36pct50 = getCharacterBaseWidth(device, Point(15, 99));
CPPUNIT_ASSERT_DOUBLES_EQUAL(width36 / 2, width36pct50, 2);
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testSimpleTextFontSpecificKerning)
{
OUString aAV(u"AV"_ustr);
vcl::Font aFont("DejaVu Sans", "Book", Size(0, 2048));
ScopedVclPtrInstance<VirtualDevice> pOutDev;
pOutDev->SetFont(aFont);
// absolute character widths AKA text array.
tools::Long nRefTextWidth = 2671;
std::vector<sal_Int32> aRefCharWidths = { 1270, 2671 };
KernArray aCharWidths;
tools::Long nTextWidth = pOutDev->GetTextArray(aAV, &aCharWidths);
CPPUNIT_ASSERT_EQUAL(aRefCharWidths[0], aCharWidths.get_subunit_array()[0]);
CPPUNIT_ASSERT_EQUAL(aRefCharWidths[1], aCharWidths.get_subunit_array()[1]);
// this sporadically returns 75 or 74 on some of the windows tinderboxes eg. tb73
CPPUNIT_ASSERT_EQUAL(nRefTextWidth, nTextWidth);
CPPUNIT_ASSERT_EQUAL(sal_Int32(nTextWidth), aCharWidths.back());
// text advance width and line height
CPPUNIT_ASSERT_EQUAL(nRefTextWidth, pOutDev->GetTextWidth(aAV));
CPPUNIT_ASSERT_EQUAL(tools::Long(2384), pOutDev->GetTextHeight());
// exact bounding rectangle, not essentially the same as text width/height
tools::Rectangle aBoundRect;
pOutDev->GetTextBoundRect(aBoundRect, aAV);
CPPUNIT_ASSERT_EQUAL(tools::Long(16), aBoundRect.Left());
CPPUNIT_ASSERT_EQUAL(tools::Long(408), aBoundRect.Top());
CPPUNIT_ASSERT_EQUAL(tools::Long(2639), aBoundRect.GetWidth());
CPPUNIT_ASSERT_EQUAL(tools::Long(1493), aBoundRect.getOpenHeight());
// normal orientation
tools::Rectangle aInput;
tools::Rectangle aRect = pOutDev->GetTextRect(aInput, aAV);
// now rotate 270 degrees
vcl::Font aRotated(aFont);
aRotated.SetOrientation(2700_deg10);
pOutDev->SetFont(aRotated);
tools::Rectangle aRectRot = pOutDev->GetTextRect(aInput, aAV);
// Check that we did do the rotation...
CPPUNIT_ASSERT_EQUAL(aRectRot.GetWidth(), aRect.GetHeight());
CPPUNIT_ASSERT_EQUAL(aRectRot.GetHeight(), aRect.GetWidth());
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testSimpleTextNoKerning)
{
OUString aAV(u"AV"_ustr);
vcl::Font aFont("DejaVu Sans", "Book", Size(0, 2048));
aFont.SetKerning(FontKerning::NONE);
ScopedVclPtrInstance<VirtualDevice> pOutDev;
pOutDev->SetFont(aFont);
// absolute character widths AKA text array.
tools::Long nRefTextWidth = 2802;
std::vector<sal_Int32> aRefCharWidths = { 1401, 2802 };
KernArray aCharWidths;
tools::Long nTextWidth = pOutDev->GetTextArray(aAV, &aCharWidths);
CPPUNIT_ASSERT_EQUAL(aRefCharWidths[0], aCharWidths.get_subunit_array()[0]);
CPPUNIT_ASSERT_EQUAL(aRefCharWidths[1], aCharWidths.get_subunit_array()[1]);
// this sporadically returns 75 or 74 on some of the windows tinderboxes eg. tb73
CPPUNIT_ASSERT_EQUAL(nRefTextWidth, nTextWidth);
CPPUNIT_ASSERT_EQUAL(sal_Int32(nTextWidth), aCharWidths.back());
// text advance width and line height
CPPUNIT_ASSERT_EQUAL(nRefTextWidth, pOutDev->GetTextWidth(aAV));
CPPUNIT_ASSERT_EQUAL(tools::Long(2384), pOutDev->GetTextHeight());
// exact bounding rectangle, not essentially the same as text width/height
tools::Rectangle aBoundRect;
pOutDev->GetTextBoundRect(aBoundRect, aAV);
CPPUNIT_ASSERT_EQUAL(tools::Long(16), aBoundRect.Left());
CPPUNIT_ASSERT_EQUAL(tools::Long(408), aBoundRect.Top());
CPPUNIT_ASSERT_EQUAL(tools::Long(2770), aBoundRect.GetWidth());
CPPUNIT_ASSERT_EQUAL(tools::Long(1493), aBoundRect.getOpenHeight());
// normal orientation
tools::Rectangle aInput;
tools::Rectangle aRect = pOutDev->GetTextRect(aInput, aAV);
// now rotate 270 degrees
vcl::Font aRotated(aFont);
aRotated.SetOrientation(2700_deg10);
pOutDev->SetFont(aRotated);
tools::Rectangle aRectRot = pOutDev->GetTextRect(aInput, aAV);
// Check that we did do the rotation...
CPPUNIT_ASSERT_EQUAL(aRectRot.GetWidth(), aRect.GetHeight());
CPPUNIT_ASSERT_EQUAL(aRectRot.GetHeight(), aRect.GetWidth());
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testTextLayoutCache)
{
OUString sTestString = u"The quick brown fox\n jumped over the lazy dogالعاشر"_ustr;
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);
}
CPPUNIT_TEST_FIXTURE(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());
}
CPPUNIT_TEST_FIXTURE(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);
}
CPPUNIT_TEST_FIXTURE(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));
}
CPPUNIT_TEST_FIXTURE(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));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testImplLayoutArgsBiDiStrong)
{
OUString sTestString = u"The quick brown fox\n jumped over the lazy dog"
"العاشر"_ustr;
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);
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testImplLayoutArgsBiDiRtl)
{
OUString sTestString = u"The quick brown fox\n jumped over the lazy dog"
"العاشر"_ustr;
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);
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testImplLayoutArgsRightAlign)
{
OUString sTestString = u"The quick brown fox\n jumped over the lazy dog"
"العاشر"_ustr;
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);
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testImplLayoutArgs_PrepareFallback_precalculatedglyphs)
{
// this font has no Cyrillic characters and thus needs fallback
const vcl::Font aFont("Amiri", Size(0, 36));
ScopedVclPtrInstance<VirtualDevice> pVirDev;
pVirDev->SetFont(aFont);
static constexpr OStringLiteral 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_FIXTURE(VclTextTest, testGetStringWithCenterEllpsis)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("DejaVu Sans", "Book", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(
u"a b c d ...v w x y z"_ustr,
device->GetEllipsisString(u"a b c d e f g h i j k l m n o p q r s t u v w x y z"_ustr, 100,
DrawTextFlags::CenterEllipsis));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetStringWithEndEllpsis)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("DejaVu Sans", "Book", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(u"a"_ustr, device->GetEllipsisString(u"abcde. f g h i j ..."_ustr, 10,
DrawTextFlags::EndEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"a b c d e f g h i j ..."_ustr,
device->GetEllipsisString(u"a b c d e f g h i j k l m n o p q r s t u v w x y z"_ustr, 100,
DrawTextFlags::EndEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"a"_ustr, device->GetEllipsisString(u"abcde. f g h i j ..."_ustr, 1,
DrawTextFlags::EndEllipsis | DrawTextFlags::Clip));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetStringWithNewsEllpsis)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("DejaVu Sans", "Book", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(u"a"_ustr, device->GetEllipsisString(u"abcde. f g h i j ..."_ustr, 10,
DrawTextFlags::NewsEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"a b .... x y z"_ustr,
device->GetEllipsisString(u"a b c d. e f g. h i j k l m n o p q r s t u v w. x y z"_ustr,
100, DrawTextFlags::NewsEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"a b .... x y z"_ustr,
device->GetEllipsisString(u"a b c d. e f g h i j k l m n o p q r s t u v w. x y z"_ustr,
100, DrawTextFlags::NewsEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"a b c d e f g h i j ..."_ustr,
device->GetEllipsisString(u"a b c d e f g h i j k l m n o p q r s t u v w. x y z"_ustr, 100,
DrawTextFlags::NewsEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"a..... x y z"_ustr,
device->GetEllipsisString(u"a. b c d e f g h i j k l m n o p q r s t u v w. x y z"_ustr,
100, DrawTextFlags::NewsEllipsis));
CPPUNIT_ASSERT_EQUAL(
u"ab. cde..."_ustr,
device->GetEllipsisString(u"ab. cde. x y z"_ustr, 50, DrawTextFlags::NewsEllipsis));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetTextBreak_invalid_index)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("DejaVu Sans", "Book", Size(0, 11)));
const OUString sTestStr(u"textline_ text_"_ustr);
const auto nLen = sTestStr.getLength();
const auto nTextWidth = device->GetTextWidth("text");
const auto nInvalidIndex = sTestStr.getLength() + 2;
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(-1),
device->GetTextBreak(sTestStr, nTextWidth, nInvalidIndex, nLen));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetTextBreak)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("DejaVu Sans", "Book", Size(0, 11)));
const OUString sTestStr(u"textline_ text_"_ustr);
const auto nLen = sTestStr.getLength();
const auto nTextWidth = device->GetTextWidth("text");
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(4),
device->GetTextBreak(sTestStr, nTextWidth, 0, nLen));
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(7),
device->GetTextBreak(sTestStr, nTextWidth, 3, nLen));
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(9),
device->GetTextBreak(sTestStr, nTextWidth, 6, nLen));
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(12),
device->GetTextBreak(sTestStr, nTextWidth, 8, nLen));
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(14),
device->GetTextBreak(sTestStr, nTextWidth, 11, nLen));
CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(-1),
device->GetTextBreak(sTestStr, nTextWidth, 13, nLen));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetSingleLineTextRect)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(
tools::Rectangle(Point(), Size(75, 12)),
device->GetTextRect(tools::Rectangle(Point(), Point(100, 100)), "This is test text"));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetSingleLineTextRectWithEndEllipsis)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(
tools::Rectangle(Point(), Size(52, 12)),
device->GetTextRect(tools::Rectangle(Point(), Point(50, 50)), "This is test text",
DrawTextFlags::WordBreak | DrawTextFlags::EndEllipsis));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetRightBottomAlignedSingleLineTextRect)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(tools::Rectangle(Point(926, 989), Size(75, 12)),
device->GetTextRect(tools::Rectangle(Point(), Point(1000, 1000)),
"This is test text",
DrawTextFlags::Right | DrawTextFlags::Bottom));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetRotatedSingleLineTextRect)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
vcl::Font aFont(device->GetFont());
aFont.SetOrientation(45_deg10);
device->SetFont(aFont);
CPPUNIT_ASSERT_EQUAL(
tools::Rectangle(Point(0, -3), Size(75, 18)),
device->GetTextRect(tools::Rectangle(Point(), Point(100, 100)), "This is test text"));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetMultiLineTextRect)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(tools::Rectangle(Point(), Size(75, 12)),
device->GetTextRect(tools::Rectangle(Point(), Point(100, 100)),
"This is test text",
DrawTextFlags::WordBreak | DrawTextFlags::MultiLine));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetMultiLineTextRectWithEndEllipsis)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(tools::Rectangle(Point(), Size(52, 48)),
device->GetTextRect(tools::Rectangle(Point(), Point(50, 50)),
"This is test text xyzabc123abcdefghijk",
DrawTextFlags::WordBreak | DrawTextFlags::EndEllipsis
| DrawTextFlags::MultiLine));
}
CPPUNIT_TEST_FIXTURE(VclTextTest, testGetRightBottomAlignedMultiLineTextRect)
{
ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
device->SetOutputSizePixel(Size(1000, 1000));
device->SetFont(vcl::Font("Liberation Sans", Size(0, 11)));
CPPUNIT_ASSERT_EQUAL(tools::Rectangle(Point(926, 989), Size(75, 12)),
device->GetTextRect(tools::Rectangle(Point(), Point(1000, 1000)),
"This is test text",
DrawTextFlags::Right | DrawTextFlags::Bottom
| DrawTextFlags::MultiLine));
}
CPPUNIT_PLUGIN_IMPLEMENT();
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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