void FlatTextarea::getMentionHashtagStart(QString &start) const {
int32 pos = textCursor().position();
if (textCursor().anchor() != pos) return;
QTextDocument *doc(document());
QTextBlock block = doc->findBlock(pos);
for (QTextBlock::Iterator iter = block.begin(); !iter.atEnd(); ++iter) {
QTextFragment fr(iter.fragment());
if (!fr.isValid()) continue;
int32 p = fr.position(), e = (p + fr.length());
if (p >= pos || e < pos) continue;
QTextCharFormat f = fr.charFormat();
if (f.isImageFormat()) continue;
QString t(fr.text());
for (int i = pos - p; i > 0; --i) {
if (t.at(i - 1) == '@') {
if ((pos - p - i < 1 || t.at(i).isLetter()) && (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_'))) {
start = t.mid(i - 1, pos - p - i + 1);
}
return;
} else if (t.at(i - 1) == '#') {
if (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_')) {
start = t.mid(i - 1, pos - p - i + 1);
}
return;
}
if (pos - p - i > 63) break;
if (!t.at(i - 1).isLetterOrNumber() && t.at(i - 1) != '_') break;
}
return;
}
}
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;
}
}
}
QString FlatTextarea::getMentionHashtagBotCommandPart(bool &start) const {
start = false;
int32 pos = textCursor().position();
if (textCursor().anchor() != pos) return QString();
// check mention / hashtag / bot command
QTextDocument *doc(document());
QTextBlock block = doc->findBlock(pos);
for (QTextBlock::Iterator iter = block.begin(); !iter.atEnd(); ++iter) {
QTextFragment fr(iter.fragment());
if (!fr.isValid()) continue;
int32 p = fr.position(), e = (p + fr.length());
if (p >= pos || e < pos) continue;
QTextCharFormat f = fr.charFormat();
if (f.isImageFormat()) continue;
bool mentionInCommand = false;
QString t(fr.text());
for (int i = pos - p; i > 0; --i) {
if (t.at(i - 1) == '@') {
if ((pos - p - i < 1 || t.at(i).isLetter()) && (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_'))) {
start = (i == 1) && (p == 0);
return t.mid(i - 1, pos - p - i + 1);
} else if ((pos - p - i < 1 || t.at(i).isLetter()) && i > 2 && (t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_') && !mentionInCommand) {
mentionInCommand = true;
--i;
continue;
}
return QString();
} else if (t.at(i - 1) == '#') {
if (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_')) {
start = (i == 1) && (p == 0);
return t.mid(i - 1, pos - p - i + 1);
}
return QString();
} else if (t.at(i - 1) == '/') {
if (i < 2) {
start = (i == 1) && (p == 0);
return t.mid(i - 1, pos - p - i + 1);
}
return QString();
}
if (pos - p - i > 127 || (!mentionInCommand && (pos - p - i > 63))) break;
if (!t.at(i - 1).isLetterOrNumber() && t.at(i - 1) != '_') break;
}
break;
}
return QString();
}
bool FlatTextarea::hasText() const {
QTextDocument *doc(document());
QTextBlock from = doc->begin(), till = doc->end();
if (from == till) return false;
for (QTextBlock::Iterator iter = from.begin(); !iter.atEnd(); ++iter) {
QTextFragment fragment(iter.fragment());
if (!fragment.isValid()) continue;
if (!fragment.text().isEmpty()) return true;
}
return (from.next() != till);
}
void FlatTextarea::onMentionHashtagOrBotCommandInsert(QString str) {
QTextCursor c(textCursor());
int32 pos = c.position();
QTextDocument *doc(document());
QTextBlock block = doc->findBlock(pos);
for (QTextBlock::Iterator iter = block.begin(); !iter.atEnd(); ++iter) {
QTextFragment fr(iter.fragment());
if (!fr.isValid()) continue;
int32 p = fr.position(), e = (p + fr.length());
if (p >= pos || e < pos) continue;
QTextCharFormat f = fr.charFormat();
if (f.isImageFormat()) continue;
bool mentionInCommand = false;
QString t(fr.text());
for (int i = pos - p; i > 0; --i) {
if (t.at(i - 1) == '@' || t.at(i - 1) == '#' || t.at(i - 1) == '/') {
if ((i == pos - p || (t.at(i - 1) == '/' ? t.at(i).isLetterOrNumber() : t.at(i).isLetter()) || t.at(i - 1) == '#') && (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_'))) {
c.setPosition(p + i - 1, QTextCursor::MoveAnchor);
int till = p + i;
for (; (till < e) && (till - p - i + 1 < str.size()); ++till) {
if (t.at(till - p).toLower() != str.at(till - p - i + 1).toLower()) {
break;
}
}
if (till - p - i + 1 == str.size() && till < e && t.at(till - p) == ' ') {
++till;
}
c.setPosition(till, QTextCursor::KeepAnchor);
c.insertText(str + ' ');
return;
} else if ((i == pos - p || t.at(i).isLetter()) && t.at(i - 1) == '@' && i > 2 && (t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_') && !mentionInCommand) {
mentionInCommand = true;
--i;
continue;
}
break;
}
if (pos - p - i > 127 || (!mentionInCommand && (pos - p - i > 63))) break;
if (!t.at(i - 1).isLetterOrNumber() && t.at(i - 1) != '_') break;
}
break;
}
c.insertText(str + ' ');
}
void FlatTextarea::onMentionOrHashtagInsert(QString mentionOrHashtag) {
QTextCursor c(textCursor());
int32 pos = c.position();
QTextDocument *doc(document());
QTextBlock block = doc->findBlock(pos);
for (QTextBlock::Iterator iter = block.begin(); !iter.atEnd(); ++iter) {
QTextFragment fr(iter.fragment());
if (!fr.isValid()) continue;
int32 p = fr.position(), e = (p + fr.length());
if (p >= pos || e < pos) continue;
QTextCharFormat f = fr.charFormat();
if (f.isImageFormat()) continue;
QString t(fr.text());
for (int i = pos - p; i > 0; --i) {
if (t.at(i - 1) == '@' || t.at(i - 1) == '#') {
if ((i == pos - p || t.at(i).isLetter() || t.at(i - 1) == '#') && (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_'))) {
c.setPosition(p + i - 1, QTextCursor::MoveAnchor);
int till = p + i;
for (; (till < e) && (till - p - i + 1 < mentionOrHashtag.size()); ++till) {
if (t.at(till - p).toLower() != mentionOrHashtag.at(till - p - i + 1).toLower()) {
break;
}
}
if (till - p - i + 1 == mentionOrHashtag.size() && till < e && t.at(till - p) == ' ') {
++till;
}
c.setPosition(till, QTextCursor::KeepAnchor);
c.insertText(mentionOrHashtag + ' ');
return;
}
break;
}
if (pos - p - i > 63) break;
if (!t.at(i - 1).isLetterOrNumber() && t.at(i - 1) != '_') break;
}
}
c.insertText(mentionOrHashtag + ' ');
}
void FlatTextarea::getSingleEmojiFragment(QString &text, QTextFragment &fragment) const {
int32 end = textCursor().position(), start = end - 1;
if (textCursor().anchor() != end) return;
if (start < 0) start = 0;
QTextDocument *doc(document());
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 fr(iter.fragment());
if (!fr.isValid()) continue;
int32 p = fr.position(), e = (p + fr.length());
if (p >= end || e <= start) {
continue;
}
QTextCharFormat f = fr.charFormat();
QString t(fr.text());
if (p < start) {
t = t.mid(start - p, end - start);
} else if (e > end) {
t = t.mid(0, end - p);
}
if (f.isImageFormat() && !t.isEmpty() && t.at(0).unicode() == QChar::ObjectReplacementCharacter) {
QString imageName = static_cast<QTextImageFormat*>(&f)->name();
if (imageName.startsWith(QLatin1String("emoji://e."))) {
fragment = fr;
text = t;
return;
}
}
return;
}
}
return;
}
QString FlatTextarea::getText(int32 start, int32 end) const {
if (end >= 0 && end <= start) return QString();
if (start < 0) start = 0;
bool full = (start == 0) && (end < 0);
QTextDocument *doc(document());
QTextBlock from = full ? doc->begin() : doc->findBlock(start), till = (end < 0) ? doc->end() : doc->findBlock(end);
if (till.isValid()) till = till.next();
int32 possibleLen = 0;
for (QTextBlock b = from; b != till; b = b.next()) {
possibleLen += b.length();
}
QString result;
result.reserve(possibleLen + 1);
if (!full && end < 0) {
end = possibleLen;
}
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 p = full ? 0 : fragment.position(), e = full ? 0 : (p + fragment.length());
if (!full) {
if (p >= end || e <= start) {
continue;
}
}
QTextCharFormat f = fragment.charFormat();
QString emojiText;
QString t(fragment.text());
if (!full) {
if (p < start) {
t = t.mid(start - p, end - start);
} else if (e > end) {
t = t.mid(0, end - p);
}
}
QChar *ub = t.data(), *uc = ub, *ue = uc + t.size();
for (; uc != ue; ++uc) {
switch (uc->unicode()) {
case 0xfdd0: // QTextBeginningOfFrame
case 0xfdd1: // QTextEndOfFrame
case QChar::ParagraphSeparator:
case QChar::LineSeparator:
*uc = QLatin1Char('\n');
break;
case QChar::Nbsp:
*uc = QLatin1Char(' ');
break;
case QChar::ObjectReplacementCharacter:
if (emojiText.isEmpty() && f.isImageFormat()) {
QString imageName = static_cast<QTextImageFormat*>(&f)->name();
if (imageName.startsWith(QLatin1String("emoji://e."))) {
if (EmojiPtr emoji = emojiFromUrl(imageName)) {
emojiText = textEmojiString(emoji);
}
}
}
if (uc > ub) result.append(ub, uc - ub);
if (!emojiText.isEmpty()) result.append(emojiText);
ub = uc + 1;
break;
}
}
if (uc > ub) result.append(ub, uc - ub);
}
result.append('\n');
}
result.chop(1);
return result;
}
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;
}
}
}
void HtmlExporter::emitBlock( const QTextBlock &block )
{
// save and later restore, in case we 'change' the default format by
// emitting block char format information
// NOTE the bottom line is commented, to use default charFormat, which can be set from outside.
//QTextCharFormat oldDefaultCharFormat = defaultCharFormat;
QString blockTag;
bool isBlockQuote = false;
const QTextBlockFormat blockFormat = block.blockFormat();
if ( blockFormat.hasProperty( BilboTextFormat::IsBlockQuote ) &&
blockFormat.boolProperty( BilboTextFormat::IsBlockQuote ) ) {
isBlockQuote = true;
}
QTextList *list = block.textList();
if ( list ) {
if ( list->itemNumber( block ) == 0 ) { // first item? emit <ul> or appropriate
// qDebug() << "first item" << endl;
if ( isBlockQuote ) {
html += QLatin1String( "<blockquote>" );
}
const QTextListFormat format = list->format();
const int style = format.style();
switch ( style ) {
case QTextListFormat::ListDecimal:
html += QLatin1String( "<ol" );
break;
case QTextListFormat::ListDisc:
html += QLatin1String( "<ul" );
break;
case QTextListFormat::ListCircle:
html += QLatin1String( "<ul type=\"circle\"" );
break;
case QTextListFormat::ListSquare:
html += QLatin1String( "<ul type=\"square\"" );
break;
case QTextListFormat::ListLowerAlpha:
html += QLatin1String( "<ol type=\"a\"" );
break;
case QTextListFormat::ListUpperAlpha:
html += QLatin1String( "<ol type=\"A\"" );
break;
default:
html += QLatin1String( "<ul" ); // ### should not happen
//qDebug() << html;
}
/*
if (format.hasProperty(QTextFormat::ListIndent)) {
html += QLatin1String(" style=\"-qt-list-indent: ");
html += QString::number(format.indent());
html += QLatin1String(";\"");
}*/
html += QLatin1Char( '>' );
}
blockTag = QLatin1String( "li" );
// html += QLatin1String( "<li " );
}
// const QTextBlockFormat blockFormat = block.blockFormat();
if ( blockFormat.hasProperty( QTextFormat::BlockTrailingHorizontalRulerWidth ) ) {
if ( ( blockFormat.hasProperty( BilboTextFormat::IsHtmlTagSign ) ) &&
( blockFormat.boolProperty( BilboTextFormat::IsHtmlTagSign ) ) ) {
html += QLatin1String( "<!--split-->" );
return;
} else {
html += QLatin1String( "<hr" );
QTextLength width = blockFormat.lengthProperty( QTextFormat::BlockTrailingHorizontalRulerWidth );
if ( width.type() != QTextLength::VariableLength ) {
emitTextLength( "width", width );
} else {
html += QLatin1Char( ' ' );
}
html += QLatin1String( "/>" );
return;
}
}
const bool pre = blockFormat.nonBreakableLines();
if ( pre ) {
// qDebug() << "NonBreakable lines" << endl;
// if (list) {
// html += QLatin1Char('>');
// }
// html += QLatin1String( "<pre" );
// emitBlockAttributes( block );
// html += QLatin1Char( '>' );
blockTag = QLatin1String( "pre" );
} else {
if (!list) {
if ( isBlockQuote ) {
html += QLatin1String( "<blockquote>" );
}
if ( ( blockFormat.hasProperty( BilboTextFormat::HtmlHeading ) ) && (
blockFormat.intProperty( BilboTextFormat::HtmlHeading ) ) ) {
const int index = blockFormat.intProperty( BilboTextFormat::HtmlHeading );
blockTag = QLatin1Char( 'h' ) + QString::number( index );
} else {
//html += QLatin1String("<div");
// html += QLatin1String( "<p" );
blockTag = QLatin1String( "p" );
}
}
}
if ( !blockTag.isEmpty() ) {
html += QLatin1Char( '<' ) + blockTag;
emitBlockAttributes( block );
html += QLatin1Char( '>' );
}
QTextBlock::Iterator it = block.begin();
for ( ; !it.atEnd(); ++it ) {
emitFragment( it.fragment(), blockFormat );
}
if ( !blockTag.isEmpty() ) {
html += QLatin1String( "</" ) + blockTag + QLatin1String( ">\n" );
}
// if ( pre ) {
// html += QLatin1String( "</pre>\n" );
// } else {
// if ( list ) {
// html += QLatin1String( "</li>\n" );
// } else {
// if ( blockFormat::boolProperty( BilboTextFormat::IsHtmlHeading ) ) {
// const int index = format.intProperty( QTextFormat::FontSizeAdjustment );
// switch ( index ) {
// case -2:
// html += QLatin1String( "</h6>" );
// break;
// case -1:
// html += QLatin1String( "</h5>" );
// break;
// case 0:
// html += QLatin1String( "</h4>" );
// break;
// case 1:
// html += QLatin1String( "</h3>" );
// break;
// case 2:
// html += QLatin1String( "<h2" );
// break;
// case 3:
// html += QLatin1String( "<h1" );
// break;
// }
// } else {
// html += QLatin1String( "</p>\n" );
// }
// }
// }
// HACK html.replace( QRegExp("<br[\\s]*/>[\\n]*<br[\\s]*/>[\\n]*"),"<br /> <br />" );
if ( list ) {
if ( list->itemNumber( block ) == list->count() - 1 ) { // last item? close list
if ( isOrderedList( list->format().style() ) ) {
html += QLatin1String( "</ol>\n" );
} else {
html += QLatin1String( "</ul>\n" );
}
if ( isBlockQuote ) {
html += QLatin1String( "</blockquote>\n" );
}
}
} else {
if ( isBlockQuote ) {
html += QLatin1String( "</blockquote>\n" );
}
}
// NOTE the bottom line is commented, to use default charFormat, which can be set from outside.
//defaultCharFormat = oldDefaultCharFormat;
}
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 p = fragment.position(), e = p + fragment.length();
if (p >= end || e <= start) {
continue;
}
QString t(fragment.text());
for (const QChar *ch = t.constData(), *e = ch + t.size(); ch != e; ++ch) {
if (ch + 1 < e && (ch->isHighSurrogate() || (((ch->unicode() >= 48 && ch->unicode() < 58) || ch->unicode() == 35) && (ch + 1)->unicode() == 0x20E3))) {
emoji = getEmoji((ch->unicode() << 16) | (ch + 1)->unicode());
if (emoji) {
if (emoji->len == 4 && (ch + 3 >= e || ((uint32((ch + 2)->unicode()) << 16) | uint32((ch + 3)->unicode())) != emoji->code2)) {
emoji = 0;
} else {
emojiPosition = p + (ch - t.constData());
emojiLen = emoji->len + ((ch + emoji->len < e && (ch + emoji->len)->unicode() == 0xFE0F) ? 1 : 0);
break;
}
}
++ch;
} else {
emoji = getEmoji(ch->unicode());
if (emoji) {
emojiPosition = p + (ch - t.constData());
emojiLen = emoji->len + ((ch + emoji->len < e && (ch + emoji->len)->unicode() == 0xFE0F) ? 1 : 0);
break;
}
}
}
if (emoji) break;
}
if (emoji) break;
}
if (emoji) {
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;
}
}
}