tdf#114628 unit test for line spacing

* two cases 60% and 150% line spacing

Change-Id: I2ce66cd19f459b738243052b5c12da0bbb883ebe
Reviewed-on: https://gerrit.libreoffice.org/47303
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Szymon Kłos <szymon.klos@collabora.com>

1 files changed, 92 insertions, 0 deletions

diff --git a/editeng/qa/unit/core-test.cxx b/editeng/qa/unit/core-test.cxx
index c23e94a0f60f..6f527440fcca 100644
--- a/editeng/qa/unit/core-test.cxx
+++ b/editeng/qa/unit/core-test.cxx
@@ -21,6 +21,7 @@
 #include <editeng/editeng.hxx>
 #include <editeng/eeitem.hxx>
 #include <editeng/editids.hrc>
+#include <editeng/lspcitem.hxx>
 #include <editeng/svxacorr.hxx>
 #include <editeng/unofield.hxx>
 #include <editeng/wghtitem.hxx>
@@ -30,6 +31,8 @@
 #include <editeng/flditem.hxx>
 #include <editeng/udlnitem.hxx>
 #include <svl/srchitem.hxx>
+#include <editeng/fontitem.hxx>
+#include <editeng/fhgtitem.hxx>
 
 #include <com/sun/star/text/textfield/Type.hpp>
 
@@ -48,6 +51,9 @@ public:
     virtual void setUp() override;
     virtual void tearDown() override;
 
+    /// Test text portions position when percentage line spacing is set
+    void testLineSpacing();
+
     void testConstruction();
 
     /// Test UNO service class that implements text field items.
@@ -94,6 +100,7 @@ public:
     DECL_STATIC_LINK( Test, CalcFieldValueHdl, EditFieldInfo*, void );
 
     CPPUNIT_TEST_SUITE(Test);
+    CPPUNIT_TEST(testLineSpacing);
     CPPUNIT_TEST(testConstruction);
     CPPUNIT_TEST(testUnoTextFields);
     CPPUNIT_TEST(testAutocorrect);
@@ -133,6 +140,91 @@ void Test::tearDown()
     test::BootstrapFixture::tearDown();
 }
 
+void Test::testLineSpacing()
+{
+    // Create EditEngine's instance
+    EditEngine aEditEngine(mpItemPool);
+
+    if(aEditEngine.GetRefDevice()->GetDPIY() != 96
+        || aEditEngine.GetRefDevice()->GetDPIScaleFactor() != 1.0)
+        return;
+
+    // Get EditDoc for current EditEngine's instance
+    EditDoc &rDoc = aEditEngine.GetEditDoc();
+
+    // Initially no text should be there
+    CPPUNIT_ASSERT_EQUAL(sal_uLong(0), rDoc.GetTextLen());
+    CPPUNIT_ASSERT_EQUAL(OUString(), rDoc.GetParaAsString(sal_Int32(0)));
+
+    // Set initial text
+    OUString aText = "This is multi-line paragraph";
+
+    sal_Int32 aTextLen = aText.getLength();
+    aEditEngine.SetText(aText);
+
+    // Assert changes - text insertion
+    CPPUNIT_ASSERT_EQUAL(sal_uLong(aTextLen), rDoc.GetTextLen());
+    CPPUNIT_ASSERT_EQUAL(aText, rDoc.GetParaAsString(sal_Int32(0)));
+
+    // Get ItemSet for line spacing - 60%
+    std::unique_ptr<SfxItemSet> pSet(new SfxItemSet(aEditEngine.GetEmptyItemSet()));
+    SvxLineSpacingItem aLineSpacing(LINE_SPACE_DEFAULT_HEIGHT, EE_PARA_SBL);
+    aLineSpacing.SetPropLineSpace(60);
+    pSet->Put(aLineSpacing);
+
+    // Set font
+    SvxFontItem aFont(EE_CHAR_FONTINFO);
+    aFont.SetFamilyName("Liberation Sans");
+    pSet->Put(aFont);
+    SvxFontHeightItem aFontSize(240, 100, EE_CHAR_FONTHEIGHT);
+    pSet->Put(aFontSize);
+
+    CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt16>(3), pSet->Count());
+
+    // Select all paragraphs and set spacing
+    ESelection aSelection(0, 0, 0, aTextLen);
+    aEditEngine.QuickSetAttribs(*pSet, aSelection);
+
+    // Force multiple lines
+    aEditEngine.SetPaperSize(Size(1000, 6000));
+    CPPUNIT_ASSERT_EQUAL((sal_Int32)4, aEditEngine.GetLineCount(0));
+
+    // Assert changes
+    ParaPortion* pParaPortion = aEditEngine.GetParaPortions()[0];
+    ContentNode* const pNode = pParaPortion->GetNode();
+    const SvxLineSpacingItem& rLSItem = pNode->GetContentAttribs().GetItem(EE_PARA_SBL);
+    CPPUNIT_ASSERT_EQUAL(SvxInterLineSpaceRule::Prop, rLSItem.GetInterLineSpaceRule());
+    CPPUNIT_ASSERT_EQUAL((sal_uInt16)60, rLSItem.GetPropLineSpace());
+
+    // Check the first line
+    ParagraphInfos aInfo = aEditEngine.GetParagraphInfos(0);
+    CPPUNIT_ASSERT_EQUAL((sal_uInt16)122, aInfo.nFirstLineMaxAscent);
+    CPPUNIT_ASSERT_EQUAL((sal_uInt16)153, (sal_uInt16)aEditEngine.GetLineHeight(0));
+
+    // Prepare second case - 150%
+    std::unique_ptr<SfxItemSet> pSet2(new SfxItemSet(aEditEngine.GetEmptyItemSet()));
+    SvxLineSpacingItem aLineSpacing2(LINE_SPACE_DEFAULT_HEIGHT, EE_PARA_SBL);
+    aLineSpacing2.SetPropLineSpace(150);
+    pSet2->Put(aLineSpacing2);
+    pSet2->Put(aFont);
+    pSet2->Put(aFontSize);
+
+    CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt16>(3), pSet2->Count());
+
+    // Select all paragraphs and set spacing
+    aEditEngine.QuickSetAttribs(*pSet2, aSelection);
+
+    // Assert changes
+    const SvxLineSpacingItem& rLSItem2 = pNode->GetContentAttribs().GetItem(EE_PARA_SBL);
+    CPPUNIT_ASSERT_EQUAL(SvxInterLineSpaceRule::Prop, rLSItem2.GetInterLineSpaceRule());
+    CPPUNIT_ASSERT_EQUAL((sal_uInt16)150, rLSItem2.GetPropLineSpace());
+
+    // Check the first line
+    ParagraphInfos aInfo2 = aEditEngine.GetParagraphInfos(0);
+    CPPUNIT_ASSERT_EQUAL((sal_uInt16)269, aInfo2.nFirstLineMaxAscent);
+    CPPUNIT_ASSERT_EQUAL((sal_uInt16)382, (sal_uInt16)aEditEngine.GetLineHeight(0));
+}
+
 void Test::testConstruction()
 {
     EditEngine aEngine(mpItemPool);