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Fix handling of codepoints 9, 10, 12, 13
Qt >= 5 refuses to display them. We work around this in lib/symbols already, but make sure we do not try to display math glyphs at these code points anyway. Fixes bug #8493.
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@ -8,5 +8,4 @@ Things left to do after killing Qt4 (obtained by grepping for Qt4 and 'Qt 4'):
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* update or remove development/lyx.rpm.README
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* update or remove development/lyxserver/server_monitor.cpp
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* update or remove development/tools/count_total_lines_of_compiled_code.sh
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* check references to qt4 in lib/symbols
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@ -871,15 +871,13 @@ Ydown stmry 5 0 mathbin x x stmaryrd
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Yleft stmry 6 0 mathbin x x stmaryrd
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Yright stmry 7 0 mathbin x x stmaryrd
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varcurlyvee stmry 8 0 mathbin x x stmaryrd
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# qt4 does not display characters at the \t position (0x09)
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# therefore our .ttf font contains a copy at 170 (0xaa)
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#varcurlywedge stmry 9 0 mathbin x x stmaryrd
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#10,12,13 codepoints broken in qt5
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# qt does not display characters at codepoints 9, 10,12,13
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# therefore our copies of the TeX fonts have duplicate glyphs after 170
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varcurlywedge stmry 170 0 mathbin x x stmaryrd
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minuso stmry 171 0 mathbin x x stmaryrd
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baro stmry 11 0 mathbin x x stmaryrd
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sslash stmry 172 0 mathbin x x stmaryrd
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#for whatever reason qt5 refuses to display anything at position 173
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#for whatever reason qt refuses to display anything at position 173
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bbslash stmry 174 0 mathbin x x stmaryrd
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moo stmry 14 0 mathbin x x stmaryrd
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varotimes stmry 15 0 mathbin x x stmaryrd
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@ -386,10 +386,11 @@ bool FontLoader::available(FontInfo const & f)
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bool FontLoader::canBeDisplayed(char_type c)
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{
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// bug 8493
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if (c == 0x0009)
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// FIXME KILLQT4: get rid of this function if not needed anymore
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// FIXME check whether this is still needed for Qt5
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// bug 8493: with Qt5, characters with codepoints 9, 10, 12 and 13
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// are rendered as spaces. We handle that in our TeX fonts by making
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// copies of the glyphs elsewhere, but this may trigger if we are
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// unlucky.
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if (c == 0x0009 || c == 0x000a || c == 0x000c || c == 0x000d)
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return false;
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return true;
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}
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