D21563: Fix empty pages in print preview and lines printed twice

[Robert Hoffmann]

hoffmannrobert created this revision.
Herald added projects: Kate, Frameworks.
Herald added subscribers: kde-frameworks-devel, kwrite-devel.
hoffmannrobert requested review of this revision.

REVISION SUMMARY
  There were errors if a page's last line is too long and needs to be
  wrapped into two or more lines:
  
  - The first line of the wrapped lines was printed correctly at the end of the page, but on the next page this first line was printed again.
  - In print preview the first wrapped line was shown correctly at the end of the page, but the next and following pages were empty.
  
  Reasons:
  
  - remainder variable was always 0
  - clipping was not reset

TEST PLAN
  In Kate, open a text file that has long lines. Check lines at page ends
  which are wrapped to the next page. Check printing and print preview.

REPOSITORY
  R39 KTextEditor

BRANCH
  fix_preview_and_printing

REVISION DETAIL
  https://phabricator.kde.org/D21563

AFFECTED FILES
  src/printing/printpainter.cpp

To: hoffmannrobert
Cc: kwrite-devel, kde-frameworks-devel, domson, michaelh, ngraham, bruns, demsking, cullmann, sars, dhaumann
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