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Only compute string length every 30 characters

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This makes paragraph rebreaking muh much faster, at least on my ancient iMac Core 2 Duo.
This commit is contained in:
Jean-Marc 2015-07-21 00:14:39 +02:00
parent b68f391232
commit 25727ee5a8
1 changed files with 10 additions and 5 deletions
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15
src/Row.cpp
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@ -333,11 +333,16 @@ void Row::add(pos_type const pos, char_type const c,
Element e(STRING, pos, f, ch);
elements_.push_back(e);
}
dim_.wid -= back().dim.wid;
back().str += c;
back().endpos = pos + 1;
back().dim.wid = theFontMetrics(back().font).width(back().str);
dim_.wid += back().dim.wid;
if (back().str.length() % 30 == 0) {
dim_.wid -= back().dim.wid;
back().str += c;
back().endpos = pos + 1;
back().dim.wid = theFontMetrics(back().font).width(back().str);
dim_.wid += back().dim.wid;
} else {
back().str += c;
back().endpos = pos + 1;
}
}