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FontIterator + rowbreaking fix

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8466 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Alfredo Braunstein 2004-03-01 10:10:10 +00:00
parent c4bbb682aa
commit 2f78aab340
3 changed files with 67 additions and 22 deletions
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9
src/ChangeLog
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@ -1,3 +1,12 @@
2004-03-01 Alfredo Braunstein <abraunst@lyx.org>
* lyxtext.h: add FontIterator class
* text.C (FontIterator, operator*, operator->, operator++): add
(rowBreakPoint, setRowWidth): adjust (fixing a
rebreaking bug)
2004-02-25 Jean-Marc Lasgouttes <lasgouttes@lyx.org>
* BufferView_pimpl.C (workAreaDispatch): allow also

21
src/lyxtext.h
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@ -463,4 +463,25 @@ int defaultRowHeight();
std::string expandLabel(LyXTextClass const & textclass,
LyXLayout_ptr const & layout, bool appendix);
class FontIterator : std::iterator<std::forward_iterator_tag, LyXFont>
{
public:
FontIterator(LyXText const & text, ParagraphList::iterator pit,
lyx::pos_type pos);
LyXFont operator*() const;
FontIterator & operator++();
LyXFont * operator->();
private:
LyXText const & text_;
ParagraphList::iterator pit_;
lyx::pos_type pos_;
LyXFont font_;
lyx::pos_type endspan_;
lyx::pos_type bodypos_;
};
#endif // LYXTEXT_H

59
src/text.C
View File

@ -444,6 +444,37 @@ pos_type addressBreakPoint(pos_type i, Paragraph const & par)
};
FontIterator::FontIterator(LyXText const & text, ParagraphList::iterator pit,
lyx::pos_type pos)
: text_(text), pit_(pit), pos_(pos),
font_(text.getFont(pit, pos)),
endspan_(pit->getEndPosOfFontSpan(pos)),
bodypos_(pit->beginOfBody())
{}
LyXFont FontIterator::operator*() const
{
return font_;
}
LyXFont * FontIterator::operator->()
{
return &font_;
}
FontIterator & FontIterator::operator++()
{
++pos_;
if (pos_ > endspan_ || pos_ == bodypos_) {
font_ = text_.getFont(pit_, pos_);
endspan_ = pit_->getEndPosOfFontSpan(pos_);
}
return *this;
}
void LyXText::rowBreakPoint(ParagraphList::iterator pit, Row & row) const
{
@ -481,14 +512,10 @@ void LyXText::rowBreakPoint(ParagraphList::iterator pit, Row & row) const
// pixel width since last breakpoint
int chunkwidth = 0;
// We re-use the font resolution for the entire font span when possible
LyXFont font = getFont(pit, pos);
lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(pos);
FontIterator fi = FontIterator(*this, pit, pos);
pos_type point = end;
pos_type i = pos;
for ( ; i < end; ++i) {
for ( ; i < end; ++i, ++fi) {
if (pit->isNewline(i)) {
point = i + 1;
break;
@ -508,13 +535,8 @@ void LyXText::rowBreakPoint(ParagraphList::iterator pit, Row & row) const
char const c = pit->getChar(i);
if (i > endPosOfFontSpan) {
font = getFont(pit, i);
endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
}
{
int thiswidth = singleWidth(pit, i, c, font);
int thiswidth = singleWidth(pit, i, c, *fi);
// add the auto-hfill from label end to the body
if (body_pos && i == body_pos) {
@ -582,10 +604,8 @@ void LyXText::setRowWidth(ParagraphList::iterator pit, Row & row) const
pos_type i = row.pos();
if (i < end) {
// We re-use the font resolution for the entire span when possible
LyXFont font = getFont(pit, i);
lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
for ( ; i < end; ++i) {
FontIterator fi = FontIterator(*this, pit, i);
for ( ; i < end; ++i, ++fi) {
if (body_pos > 0 && i == body_pos) {
w += font_metrics::width(labelsep, getLabelFont(pit));
if (pit->isLineSeparator(i - 1))
@ -593,12 +613,7 @@ void LyXText::setRowWidth(ParagraphList::iterator pit, Row & row) const
w = max(w, labelEnd(pit));
}
char const c = pit->getChar(i);
if (IsPrintable(c) && i > endPosOfFontSpan) {
// We need to get the next font
font = getFont(pit, i);
endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
}
w += singleWidth(pit, i, c, font);
w += singleWidth(pit, i, c, *fi);
}
}