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TextMetrics::leftMargin(): Explain why the disabled code is wrong

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This commit is contained in:
Vincent van Ravesteijn 2012-05-10 10:39:38 +02:00
parent 92ac678715
commit 6df750aa18
1 changed files with 8 additions and 6 deletions
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14
src/TextMetrics.cpp
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@ -1980,16 +1980,18 @@ int TextMetrics::leftMargin(int max_width,
case MARGIN_RIGHT_ADDRESS_BOX: {
#if 0
// ok, a terrible hack. The left margin depends on the widest
// row in this paragraph.
RowList::iterator rit = par.rows().begin();
RowList::iterator end = par.rows().end();
// FIXME: This is wrong.
// The left margin depends on the widest row in this paragraph.
// This code is wrong because it depends on the rows, but at the
// same time this function is used in redoParagraph to construct
// the rows.
ParagraphMetrics const & pm = par_metrics_[pit];
RowList::const_iterator rit = pm.rows().begin();
RowList::const_iterator end = pm.rows().end();
int minfill = max_width;
for ( ; rit != end; ++rit)
if (rit->fill() < minfill)
minfill = rit->fill();
l_margin += theFontMetrics(params.getFont()).signedWidth(layout.leftmargin);
l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(layout.leftmargin);
l_margin += minfill;
#endif
// also wrong, but much shorter.