D25339: KateRenderer: Use representitive character in CJK to estimate the fontHeight.

[Frederick Yin]

fakefred added a comment.


  So I tested this, great improvements regarding line height can be seen: 
  F8283136: kate_1.png <https://phabricator.kde.org/F8283136>
  
  在使用本身就是 CJK 的字体时，显示仍然正常。
  F8283141: kate_2.png <https://phabricator.kde.org/F8283141>

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D25339

To: xuetianweng, #ktexteditor, cullmann, dhaumann, #frameworks
Cc: fakefred, anthonyfieroni, kde-frameworks-devel, kwrite-devel, rrosch, LeGast00n, cblack, domson, michaelh, ngraham, bruns, demsking, cullmann, sars, dhaumann
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