tdf#148818 Fix missing text in boxes with empty first paragraph

Text was lost from the text boxes with empty first paragraph. The
problem was happening when there was 2 paragraphs in a text box, in
which the first paragraph was completely empty. The regression was
introduced in cf2449aac0141711a7610d67f7c50cd108e12443 because of the
bad handling of the paragraphs, and only looking at the size of the
text of the first paragraph.

This is fixed by looking at mpOutliner->GetEditEngine().GetTextLen(i)
for all i=1..k where k=min(2,mpOutliner->GetParagraphCount()).

I have negated the condition to provide a better explanation of what
the condition should be.

Change-Id: Id5d8787df5111c734760afdd98a6fbe832047f32
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133527
Tested-by: Jenkins
Reviewed-by: Hossein <hossein@libreoffice.org>
(cherry picked from commit 759792e40aceb17a621c37ed725d1e998acbd30d)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146390
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Aron Budea <aron.budea@collabora.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/svx/source/unodraw/unoshtxt.cxx b/svx/source/unodraw/unoshtxt.cxx
index 23c772daa1da..d4b6ddddb791 100644
--- a/svx/source/unodraw/unoshtxt.cxx
+++ b/svx/source/unodraw/unoshtxt.cxx
@@ -775,14 +775,15 @@ void SvxTextEditSourceImpl::UpdateData()
             SdrTextObj* pTextObj = dynamic_cast< SdrTextObj* >( mpObject );
             if( pTextObj )
             {
-                if( (mpOutliner->GetParagraphCount() != 1 && mpOutliner->GetParagraphCount() != 2)
-                    || mpOutliner->GetEditEngine().GetTextLen( 0 ) )
+                if( (mpOutliner->GetParagraphCount() == 1 && mpOutliner->GetEditEngine().GetTextLen( 0 ) == 0 )
+                        || (mpOutliner->GetParagraphCount() == 2 && mpOutliner->GetEditEngine().GetTextLen( 0 ) == 0
+                            && mpOutliner->GetEditEngine().GetTextLen( 1 ) == 0) )
                 {
-                    pTextObj->NbcSetOutlinerParaObjectForText( mpOutliner->CreateParaObject(), mpText );
+                    pTextObj->NbcSetOutlinerParaObjectForText( std::nullopt, mpText );
                 }
                 else
                 {
-                    pTextObj->NbcSetOutlinerParaObjectForText( std::nullopt, mpText );
+                    pTextObj->NbcSetOutlinerParaObjectForText( mpOutliner->CreateParaObject(), mpText );
                 }
             }