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Merge pull request #406 from duanyao/fix_offset_and_padding

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Fix offset optimizing issue introduced by padding char (#398).
This commit is contained in:
Lu Wang 2014-08-07 13:41:09 -07:00
commit 55b5b51f0e
1 changed files with 10 additions and 3 deletions
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13
src/HTMLTextLine.cc
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@ -52,12 +52,19 @@ void HTMLTextLine::append_offset(double width)
/*
* If the last offset is very thin, we can ignore it and directly use it
* But this should not happen often, and we will also filter near-zero offsets when outputting them
* So don't check it
* So don't check it.
*
* Offset must be appended immediately after the last real (non-padding) char, or the text optimizing
* algorithm may be confused: it may wrongly convert offsets at the beginning of a line to word-space.
*/
if((!offsets.empty()) && (offsets.back().start_idx == text.size()))
auto offset_idx = text.size();
while (offset_idx > 0 && text[offset_idx - 1] == 0)
--offset_idx;
if((!offsets.empty()) && (offsets.back().start_idx == offset_idx))
offsets.back().width += width;
else
offsets.emplace_back(text.size(), width);
offsets.emplace_back(offset_idx, width);
this->width += width;
}