tdf#106390 Intersect the table borders with upper frames.

Also removes dead code because SwTabFramePainter::Insert()
is always called with a cell frame and IsTabFrame() always
returns false.

Reviewed-on: https://gerrit.libreoffice.org/54684Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
(cherry picked from commit e87cc12e)

Conflicts:
	sw/qa/extras/layout/layout.cxx
	sw/source/core/layout/paintfrm.cxx

Change-Id: I2505d876d20e44ded1faf760bc3b7b1d34b0fd8d

sw/qa/extras/layout/layout.cxx

@@ -19,9 +19,11 @@ class SwLayoutWriter : public SwModelTestBase
 {
 public:
     void testUserFieldTypeLanguage();
+    void testTdf106390();
 
     CPPUNIT_TEST_SUITE(SwLayoutWriter);
     CPPUNIT_TEST(testUserFieldTypeLanguage);
+    CPPUNIT_TEST(testTdf106390);
     CPPUNIT_TEST_SUITE_END();
 
 private:
@@ -57,6 +59,24 @@ void SwLayoutWriter::testUserFieldTypeLanguage()
     assertXPath(pXmlDoc, "/root/page/body/txt/Special[@nType='POR_FLD']", "rText", "1,234.56");
 }
 
+void SwLayoutWriter::testTdf106390()
+{
+    SwDoc* pDoc = createDoc("tdf106390.odt");
+    SwDocShell* pShell = pDoc->GetDocShell();
+
+    // Dump the rendering of the first page as an XML file.
+    std::shared_ptr<GDIMetaFile> xMetaFile = pShell->GetPreviewMetaFile();
+    MetafileXmlDump dumper;
+    xmlDocPtr pXmlDoc = dumper.dumpAndParse(*xMetaFile);
+    CPPUNIT_ASSERT(pXmlDoc);
+    sal_Int32 nBottom = getXPath(pXmlDoc, "//sectrectclipregion", "bottom").toInt32();
+
+    // No end point of line segments shall go below the bottom of the clipping area.
+    const OString sXPath = "//polyline/point[@y>" + OString::number(nBottom) + "]";
+
+    assertXPath(pXmlDoc, sXPath, 0);
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(SwLayoutWriter);
 CPPUNIT_PLUGIN_IMPLEMENT();
 

sw/source/core/layout/paintfrm.cxx

@@ -2960,10 +2960,16 @@ void SwTabFramePainter::Insert( const SwFrame& rFrame, const SvxBoxItem& rBoxIte
 {
     // build 4 line entries for the 4 borders:
     SwRect aBorderRect = rFrame.Frame();
-    if ( rFrame.IsTabFrame() )
-    {
-        aBorderRect = rFrame.Prt();
-        aBorderRect.Pos() += rFrame.Frame().Pos();
+    // Frame area of a table might be larger than the containing frame
+    // so we have to intersect the border rect with upper frames til
+    // the first frame that is not part of a table.
+    const SwLayoutFrame *pUpper = rFrame.GetUpper();
+    while(pUpper)
+    {
+        aBorderRect.Intersection(pUpper->Frame());
+        if (!pUpper->IsInTab())
+            break;
+        pUpper = pUpper->GetUpper();
     }
 
     bool const bBottomAsTop(lcl_IsFirstRowInFollowTableWithoutRepeatedHeadlines(