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41740ea915
This branch implements string-wise metrics computation. The goal is to have both good metrics computation (and font with proper kerning and ligatures) and better performance than what we have with force_paint_single_char. Moreover there has been some code factorization in TextMetrics, where the same row-breaking algorithm was basically implemented 3 times. Globally, the new code is a bit shorter than the existing one, and it is much cleaner. There is still a lot of potential for code removal, especially in the RowPainter, which should be rewritten to use the new Row information. The bugs fixed and caused by this branch are tracked at ticket #9003: http://www.lyx.org/trac/ticket/9003 What is done: * Make TextMetrics methods operate on Row objects: breakRow and setRowHeight instead of rowBreakPoint and rowHeight. * Change breakRow operation to operate at strings level to compute metrics The list of elements is stored in the row object in visual ordering, not logical. This will eventually allow to get rid of the Bidi class. * rename getColumnNearX to getPosNearX (and change code accordingly). It does not make sense to return a position relative to the start of row, since nobody needs this. * Re-implement cursorX and getPosNearX using row elements. * Get rid of lyxrc.force_paint_single_char. This was a workaround that is not necessary anymore. * Implement proper string metrics computation (with cache). Remove useless workarounds which disable kerning and ligatures. * Draw also RtL text string-wise. This speeds-up drawing. * Do not cut strings at selection boundary in RowPainter. This avoids ligature/kerning breaking in latin text, and bad rendering problems in Arabic. * Remove homebrew Arabic and Hebrew support from Encoding.cpp. We now rely on Qt to do handle complex scripts. * Get rid of LyXRC::rtl_support, which does not have a real use case. * Fix display of [] and {} delimiters in Arabic scripts. |
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| .. | ||
| bind | ||
| commands | ||
| doc | ||
| examples | ||
| fonts | ||
| images | ||
| kbd | ||
| layouts | ||
| lyx2lyx | ||
| scripts | ||
| templates | ||
| tex | ||
| ui | ||
| .gitignore | ||
| appdata.xml | ||
| autocorrect | ||
| build-listerrors | ||
| chkconfig.ltx | ||
| configure.py | ||
| CREDITS | ||
| encodings | ||
| external_templates | ||
| generate_contributions.py | ||
| languages | ||
| latexfonts | ||
| layouttranslations | ||
| layouttranslations.review | ||
| lyx.desktop.in | ||
| Makefile.am | ||
| symbols | ||
| syntax.default | ||
| unicodesymbols | ||