void TagConverter::applyPatternToColumns()
{
QList<int> columns;
//QRegularExpression re = this->generatePattern2(fileToTagLineEdit);
///
QString text = fileToTagLineEdit->text();
text = text.replace(':', '_');
// Remove and convert spaces according to columns
for (int i = fileToTagLineEdit->tags().count() - 1; i >= 0; i--) {
TagButton *tag = fileToTagLineEdit->tags().at(i);
QString substitution = ':' + QString::number(tag->column());
columns.prepend(tag->column());
text.replace(tag->position(), tag->spaceCount(), substitution);
}
QString pattern = "^";
QString characterClass;
// Depending on which detected columns, choose a sub-regex
for (int i = 0; i < text.size(); i++) {
QChar c = text.at(i);
if (c == ':') {
c = text.at(++i);
switch (c.digitValue()) {
case Miam::COL_Track:
case Miam::COL_Year:
case Miam::COL_Disc:
characterClass = "[\\d]+"; // Digits
break;
default:
characterClass = "[\\w\\W]+";
break;
}
pattern += "(" + characterClass + ")";
} else {
pattern += QRegularExpression::escape(text.at(i));
}
}
pattern += "$";
QRegularExpression re(pattern, QRegularExpression::UseUnicodePropertiesOption);
for (QModelIndex index : _tagEditor->selectionModel()->selectedRows()) {
QString filename = index.data().toString();
filename = filename.left(filename.lastIndexOf("."));
QRegularExpressionMatch m = re.match(filename);
if (!m.hasMatch()) {
continue;
}
// The implicit capturing group with index 0 captures the result of the whole match.
for (int i = 0; i < re.captureCount(); i++) {
_tagEditor->updateCellData(index.row(), columns.at(i), m.captured(i + 1));
}
}
this->setVisible(false);
_convertButton->setChecked(false);
}
QString TagConverter::generatePattern(TagLineEdit *lineEdit) const
{
QString pattern = lineEdit->text();
pattern = pattern.replace(':', '_');
/// XXX code review needed
// Proceed to substitutions in reverse order
for (int i = lineEdit->tags().count() - 1; i >= 0; i--) {
TagButton *tag = lineEdit->tags().at(i);
QString substitution = ':' + QString::number(tag->column());
pattern.replace(tag->position(), tag->spaceCount(), substitution);
}
return pattern;
}
/** Redefined to be able to move tag buttons.
* Backspace method is not virtual in QLineEdit, therefore keyPressEvent must be intercepted and eaten. */
void TagLineEdit::backspace()
{
bool oneTagNeedToBeRemoved = false;
TagButton *tag = nullptr;
QPoint cursorCenter;
cursorBackward(false);
int dx = fontMetrics().width(text().at(cursorPosition()));
for (TagButton *button : _tags) {
cursorCenter = cursorRect().center();
// One tag button need to be removed
if (button->frameGeometry().contains(cursorCenter)) {
oneTagNeedToBeRemoved = true;
tag = button;
}
// Tags need to be moved to the left
if (button->x() > cursorCenter.x()) {
button->move(button->x() - dx, 0);
button->setPosition(cursorPosition());
}
}
cursorForward(false);
if (oneTagNeedToBeRemoved) {
for (int i = 0; i < tag->spaceCount(); i++) {
LineEdit::backspace();
}
dx = fontMetrics().width(" ") * tag->spaceCount();
for (TagButton *button : _tags) {
if (button != tag && button->x() > cursorCenter.x()) {
button->move(button->x() - dx, 0);
button->setPosition(cursorPosition());
}
}
_tags.removeOne(tag);
delete tag;
/// FIXME
//emit taglistHasChanged(this->toStringList());
} else {
LineEdit::backspace();
}
}
/** TagButton instances are converted with whitespaces in the LineEdit in order to move them. */
void TagLineEdit::insertSpaces()
{
TagButton *t = qobject_cast<TagButton*>(sender());
int cx = cursorRect().x();
t->setPosition(cursorPosition());
int numberOfSpace = 2;
this->setText(this->text().insert(cursorPosition(), " "));
cursorForward(false, 2);
while (t->frameGeometry().contains(cursorRect().center())) {
this->setText(this->text().insert(cursorPosition(), " "));
cursorForward(false);
numberOfSpace++;
}
t->setMinimumWidth(numberOfSpace * fontMetrics().width(" ") - 5);
t->setSpaceCount(numberOfSpace);
t->disconnect();
for (TagButton *tag : _tags) {
//qDebug() << Q_FUNC_INFO << "trying to move tag";
if (t != tag && tag->frameGeometry().x() > cx) {
//qDebug() << Q_FUNC_INFO << "moving tag" << tag->text();
tag->move(tag->x() + fontMetrics().width(" ") * numberOfSpace, 0);
}
}
}
void TagLineEdit::addTag(const QString &tag, int column)
{
if (tag.trimmed().isEmpty()) {
return;
}
for (TagButton *button : _tags) {
if (button->text() == tag.trimmed().toLower()) {
// It useless to add a tag more than once (IMHO)
return;
}
}
TagButton *t = new TagButton(tag.trimmed(), this);
if (column != -1) {
t->setColumn(column);
}
t->setMaximumHeight(this->height() - 2);
// Move all tag buttons, next to the one that is about to be closed, to the left
connect(t->closeButton(), &QToolButton::clicked, this, [=]() {
this->closeTagButton(t);
});
_tags.append(t);
this->setFocus();
// Unfortunately, we have to wait that a QShowEvent is emitted to have correct size of the Widget
connect(t, &TagButton::shown, this, &TagLineEdit::insertSpaces);
t->move(cursorRect().right() + 1, 0);
t->show();
}
