InlineTextBox * RenderText::findInlineTextBox( int offset, int &pos, bool checkFirstLetter )
{
// The text boxes point to parts of the rendertext's str string
// (they don't include '\n')
// Find the text box that includes the character at @p offset
// and return pos, which is the position of the char in the run.
// FIXME: make this use binary search? Dirk says it won't work :-( (LS)
(void)checkFirstLetter;
#if 0
if (checkFirstLetter && forcedMinOffset()) {
// kdDebug(6040) << "checkFirstLetter: forcedMinOffset: " << forcedMinOffset() << endl;
RenderFlow *firstLetter = static_cast<RenderFlow *>(previousSibling());
if (firstLetter && firstLetter->isFlow() && firstLetter->isFirstLetter()) {
RenderText *letterText = static_cast<RenderText *>(firstLetter->firstChild());
//kdDebug(6040) << "lettertext: " << letterText << " minOfs: " << letterText->minOffset() << " maxOfs: " << letterText->maxOffset() << endl;
if (offset >= letterText->minOffset() && offset <= letterText->maxOffset()) {
InlineTextBox *result = letterText->findInlineTextBox(offset, pos, false);
//kdDebug(6040) << "result: " << result << endl;
if (result) return result;
}
}
}
#endif
if ( m_lines.isEmpty() )
return 0L;
// The text boxes don't resemble a contiguous coverage of the text, there
// may be holes. Therefore, we snap to the nearest previous text box if
// the given offset happens to point to such a hole.
InlineTextBox* s = m_lines[0];
uint count = m_lines.count();
uint si = 0;
uint nearest_idx = 0; // index of nearest text box
int nearest = INT_MAX; // nearest distance
//kdDebug(6040) << "s[" << si << "] m_start " << s->m_start << " m_end " << (s->m_start + s->m_len) << endl;
while(!(offset >= s->m_start && offset <= s->m_start + s->m_len)
&& ++si < count)
{
int dist = offset - (s->m_start + s->m_len);
//kdDebug(6040) << "dist " << dist << " nearest " << nearest << endl;
if (dist >= 0 && dist <= nearest) {
nearest = dist;
nearest_idx = si - 1;
}/*end if*/
s = m_lines[si];
//kdDebug(6040) << "s[" << si << "] m_start " << s->m_start << " m_end " << (s->m_start + s->m_len) << endl;
}
//kdDebug(6040) << "nearest_idx " << nearest_idx << " count " << count << endl;
if (si >= count) s = m_lines[nearest_idx];
// we are now in the correct text box
pos = kMin(offset - s->m_start, int( s->m_len ));
//kdDebug(6040) << "offset=" << offset << " s->m_start=" << s->m_start << endl;
return s;
}
long CharacterDataImpl::minOffset() const
{
RenderText *r = static_cast<RenderText *>(renderer());
if (!r || !r->isText()) return 0;
// take :first-letter into consideration
#ifdef __GNUC__
#warning FIXME
#endif
#if 0
if (r->forcedMinOffset()) {
RenderFlow *firstLetter = static_cast<RenderFlow *>(r->previousSibling());
if (firstLetter && firstLetter->isFlow() && firstLetter->isFirstLetter()) {
RenderText *letterText = static_cast<RenderText *>(firstLetter->firstChild());
return letterText->minOffset();
}
}
#endif
return r->minOffset();
}