void FlatTextarea::processDocumentContentsChange(int position, int charsAdded) {
int32 emojiPosition = 0, emojiLen = 0;
const EmojiData *emoji = 0;
QTextDocument *doc(document());
while (true) {
int32 start = position, end = position + charsAdded;
QTextBlock from = doc->findBlock(start), till = doc->findBlock(end);
if (till.isValid()) till = till.next();
for (QTextBlock b = from; b != till; b = b.next()) {
for (QTextBlock::Iterator iter = b.begin(); !iter.atEnd(); ++iter) {
QTextFragment fragment(iter.fragment());
if (!fragment.isValid()) continue;
int32 fp = fragment.position(), fe = fp + fragment.length();
if (fp >= end || fe <= start) {
continue;
}
QString t(fragment.text());
const QChar *ch = t.constData(), *e = ch + t.size();
for (; ch != e; ++ch) {
emoji = emojiFromText(ch, e, emojiLen);
if (emoji) {
emojiPosition = fp + (ch - t.constData());
break;
}
if (ch + 1 < e && ch->isHighSurrogate() && (ch + 1)->isLowSurrogate()) ++ch;
}
if (emoji) break;
}
if (emoji) break;
}
if (emoji) {
if (!document()->pageSize().isNull()) {
document()->setPageSize(QSizeF(0, 0));
}
QTextCursor c(doc->docHandle(), emojiPosition);
c.setPosition(emojiPosition + emojiLen, QTextCursor::KeepAnchor);
int32 removedUpto = c.position();
insertEmoji(emoji, c);
charsAdded -= removedUpto - position;
position = emojiPosition + 1;
emoji = 0;
emojiPosition = 0;
} else {
break;
}
}
}
void InputField::processDocumentContentsChange(int position, int charsAdded) {
int32 emojiPosition = 0, emojiLen = 0;
const EmojiData *emoji = 0;
static QString space(' ');
QTextDocument *doc(_inner.document());
QTextCursor c(_inner.textCursor());
c.joinPreviousEditBlock();
while (true) {
int32 start = position, end = position + charsAdded;
QTextBlock from = doc->findBlock(start), till = doc->findBlock(end);
if (till.isValid()) till = till.next();
for (QTextBlock b = from; b != till; b = b.next()) {
for (QTextBlock::Iterator iter = b.begin(); !iter.atEnd(); ++iter) {
QTextFragment fragment(iter.fragment());
if (!fragment.isValid()) continue;
int32 fp = fragment.position(), fe = fp + fragment.length();
if (fp >= end || fe <= start) {
continue;
}
QString t(fragment.text());
const QChar *ch = t.constData(), *e = ch + t.size();
for (; ch != e; ++ch) {
// QTextBeginningOfFrame // QTextEndOfFrame
if (ch->unicode() == 0xfdd0 || ch->unicode() == 0xfdd1 || ch->unicode() == QChar::ParagraphSeparator || ch->unicode() == QChar::LineSeparator || ch->unicode() == '\n' || ch->unicode() == '\r') {
if (!_inner.document()->pageSize().isNull()) {
_inner.document()->setPageSize(QSizeF(0, 0));
}
int32 nlPosition = fp + (ch - t.constData());
QTextCursor c(doc->docHandle(), nlPosition);
c.setPosition(nlPosition + 1, QTextCursor::KeepAnchor);
c.insertText(space);
position = nlPosition + 1;
emoji = TwoSymbolEmoji; // just a flag
break;
}
emoji = emojiFromText(ch, e, emojiLen);
if (emoji) {
emojiPosition = fp + (ch - t.constData());
break;
}
if (ch + 1 < e && ch->isHighSurrogate() && (ch + 1)->isLowSurrogate()) ++ch;
}
if (emoji) break;
}
if (emoji) break;
if (b.next() != doc->end()) {
int32 nlPosition = b.next().position() - 1;
QTextCursor c(doc->docHandle(), nlPosition);
c.setPosition(nlPosition + 1, QTextCursor::KeepAnchor);
c.insertText(space);
position = nlPosition + 1;
emoji = TwoSymbolEmoji; // just a flag
break;
}
}
if (emoji == TwoSymbolEmoji) { // just skip
emoji = 0;
emojiPosition = 0;
} else if (emoji) {
if (!_inner.document()->pageSize().isNull()) {
_inner.document()->setPageSize(QSizeF(0, 0));
}
QTextCursor c(doc->docHandle(), emojiPosition);
c.setPosition(emojiPosition + emojiLen, QTextCursor::KeepAnchor);
int32 removedUpto = c.position();
insertEmoji(emoji, c);
for (Insertions::iterator i = _insertions.begin(), e = _insertions.end(); i != e; ++i) {
if (i->first >= removedUpto) {
i->first -= removedUpto - emojiPosition - 1;
} else if (i->first >= emojiPosition) {
i->second -= removedUpto - emojiPosition;
i->first = emojiPosition + 1;
} else if (i->first + i->second > emojiPosition + 1) {
i->second -= qMin(removedUpto, i->first + i->second) - emojiPosition;
}
}
charsAdded -= removedUpto - position;
position = emojiPosition + 1;
emoji = 0;
emojiPosition = 0;
} else {
break;
}
}
c.endEditBlock();
}
void FlatTextarea::processDocumentContentsChange(int position, int charsAdded) {
int32 replacePosition = -1, replaceLen = 0;
const EmojiData *emoji = 0;
static QString regular = qsl("Open Sans"), semibold = qsl("Open Sans Semibold");
bool checkTilde = !cRetina() && (font().pixelSize() == 13) && (font().family() == regular), wasTildeFragment = false;
QTextDocument *doc(document());
while (true) {
int32 start = position, end = position + charsAdded;
QTextBlock from = doc->findBlock(start), till = doc->findBlock(end);
if (till.isValid()) till = till.next();
for (QTextBlock b = from; b != till; b = b.next()) {
for (QTextBlock::Iterator iter = b.begin(); !iter.atEnd(); ++iter) {
QTextFragment fragment(iter.fragment());
if (!fragment.isValid()) continue;
int32 fp = fragment.position(), fe = fp + fragment.length();
if (fp >= end || fe <= start) {
continue;
}
if (checkTilde) {
wasTildeFragment = (fragment.charFormat().fontFamily() == semibold);
}
QString t(fragment.text());
const QChar *ch = t.constData(), *e = ch + t.size();
for (; ch != e; ++ch, ++fp) {
int32 emojiLen = 0;
emoji = emojiFromText(ch, e, &emojiLen);
if (emoji) {
if (replacePosition >= 0) {
emoji = 0; // replace tilde char format first
} else {
replacePosition = fp;
replaceLen = emojiLen;
}
break;
}
if (checkTilde && fp >= position) { // tilde fix in OpenSans
bool tilde = (ch->unicode() == '~');
if ((tilde && !wasTildeFragment) || (!tilde && wasTildeFragment)) {
if (replacePosition < 0) {
replacePosition = fp;
replaceLen = 1;
} else {
++replaceLen;
}
} else if (replacePosition >= 0) {
break;
}
}
if (ch + 1 < e && ch->isHighSurrogate() && (ch + 1)->isLowSurrogate()) {
++ch;
++fp;
}
}
if (replacePosition >= 0) break;
}
if (replacePosition >= 0) break;
}
if (replacePosition >= 0) {
if (!document()->pageSize().isNull()) {
document()->setPageSize(QSizeF(0, 0));
}
QTextCursor c(doc->docHandle(), replacePosition);
c.setPosition(replacePosition + replaceLen, QTextCursor::KeepAnchor);
if (emoji) {
insertEmoji(emoji, c);
} else {
QTextCharFormat format;
format.setFontFamily(wasTildeFragment ? regular : semibold);
c.mergeCharFormat(format);
}
charsAdded -= replacePosition + replaceLen - position;
position = replacePosition + (emoji ? 1 : replaceLen);
emoji = 0;
replacePosition = -1;
} else {
break;
}
}
}
