{

return {

{"2 frames", 2.0 / fps}, {"3 frames", 3.0 / fps}, {"4 frames", 4.0 / fps},

{"6 frames", 6.0 / fps}, {"8 frames", 8.0 / fps}, {"12 frames", 12.0 / fps},

{"1 second", 1.0}, {"1.5 seconds", 1.5}, {"2 seconds", 2.0}

};

double existingDurationMs, QWidget *parent)

: QDialog(parent), fps(fps), durationMs(existingDurationMs), mode(themode)

{

setWindowTitle(mode == Mode::Create ? "New Panel" : "Edit Panel");

QVBoxLayout *mainLayout = new QVBoxLayout(this);

QFormLayout *formLayout = new QFormLayout;

// Panel name input

panelNameInput = new QLineEdit;

panelNameInput->setText(mode == Mode::Create ?

(lastPanelName.isEmpty() ? "PANEL_" + QDateTime::currentDateTime().toString("yyyyMMddhhmmss") : lastPanelName) :

existingPanelName);

panelNameInput->setPlaceholderText("Enter panel name (e.g., PANEL_001)");

formLayout->addRow("Panel Name:", panelNameInput);

// Duration preset dropdown

durationPresetCombo = new QComboBox;

QStringList presetDurations = {"2 frames", "3 frames", "4 frames", "6 frames", "8 frames",

"12 frames", "1 second", "1.5 seconds", "2 seconds"};

durationPresetCombo->addItems(presetDurations);

QString initialPreset = lastDurationPreset;

if (mode == Mode::Edit) {

double existingSeconds = existingDurationMs / 1000.0;

double minDiff = std::numeric_limits<double>::max();

for (const auto& preset : presetDurations) {

double presetSeconds = presetMap().value(preset, 1.0);

double diff = std::abs(presetSeconds - existingSeconds);

if (diff < minDiff) {

minDiff = diff;

initialPreset = preset;

}

}

}

int index = durationPresetCombo->findText(initialPreset);

durationPresetCombo->setCurrentIndex(index != -1 ? index : presetDurations.indexOf("1 second"));

formLayout->addRow("Preset Duration:", durationPresetCombo);

// Duration input

durationInput = new QLineEdit;

durationInput->setPlaceholderText("Enter timecode (HH:MM:SS:FF), seconds, or frames");

formLayout->addRow("Precise Duration:", durationInput);

// Insert mode dropdown (only for Create mode)

insertModeCombo = new QComboBox;

insertModeCombo->addItems({"Split at Cursor", "After Current Panel", "Before Current Panel"});

insertModeCombo->setCurrentText(lastInsertMode);

insertModeCombo->setVisible(mode == Mode::Create);

formLayout->addRow("Insert Mode:", insertModeCombo);

// OK and Cancel buttons

QHBoxLayout *buttonLayout = new QHBoxLayout;

okButton = new QPushButton("OK");

QPushButton *cancelButton = new QPushButton("Cancel");

buttonLayout->addWidget(okButton);

buttonLayout->addWidget(cancelButton);

mainLayout->addLayout(formLayout);

mainLayout->addLayout(buttonLayout);

// Connect signals

connect(durationPresetCombo, &QComboBox::currentTextChanged, this, &NewPanelDialog::onDurationPresetChanged);

connect(durationInput, &QLineEdit::textEdited, this, &NewPanelDialog::validateInput);

connect(panelNameInput, &QLineEdit::textEdited, this, &NewPanelDialog::validateInput);

connect(okButton, &QPushButton::clicked, this, [this]() {

if (mode == Mode::Create) {

lastPanelName = panelNameInput->text().trimmed();

lastDurationPreset = durationPresetCombo->currentText();

lastInsertMode = insertModeCombo->currentText();

}

accept();

});

connect(cancelButton, &QPushButton::clicked, this, &QDialog::reject);

onDurationPresetChanged(durationPresetCombo->currentText());

validateInput();

{

durationMs = presetMap().value(text, 1.0) * 1000.0;

int totalFrames = qRound(durationMs * fps / 1000.0);

int h = totalFrames / (3600 * fps);

totalFrames %= static_cast<int>(3600 * fps);

int m = totalFrames / (60 * fps);

totalFrames %= static_cast<int>(60 * fps);

int s = totalFrames / fps;

int f = totalFrames % static_cast<int>(fps);

QString timecode = QString("%1:%2:%3:%4")

.arg(h, 2, 10, QChar('0'))

.arg(m, 2, 10, QChar('0'))

.arg(s, 2, 10, QChar('0'))

.arg(f, 2, 10, QChar('0'));

durationInput->setText(timecode);

validateInput();

{

QString panelName = panelNameInput->text().trimmed();

bool panelNameValid = !panelName.isEmpty() && !panelName.contains(QRegularExpression("[^a-zA-Z0-9_\\-]"));

QString input = durationInput->text().trimmed();

QRegularExpression timecodeRegex(R"(^(\d+):(\d{2}):(\d{2}):(\d{2})$)");

QRegularExpressionMatch match = timecodeRegex.match(input);

bool durationValid = false;

if (match.hasMatch()) {

int h = match.captured(1).toInt();

int m = match.captured(2).toInt();

int s = match.captured(3).toInt();

int f = match.captured(4).toInt();

if (m < 60 && s < 60 && f < fps) {

durationMs = (h * 3600 + m * 60 + s) * 1000.0 + f * (1000.0 / fps);

durationValid = durationMs > 0;

QString timecode = QString("%1:%2:%3:%4")

.arg(h, 2, 10, QChar('0'))

.arg(m, 2, 10, QChar('0'))

.arg(s, 2, 10, QChar('0'))

.arg(f, 2, 10, QChar('0'));

for (const auto& preset : presetMap().keys()) {

int presetFrames = qRound(presetMap()[preset] * fps / 1000.0);

QString presetTimecode = QString("00:00:%1:%2")

.arg(presetFrames / static_cast<int>(fps), 2, 10, QChar('0'))

.arg(presetFrames % static_cast<int>(fps), 2, 10, QChar('0'));

if (presetTimecode == timecode) {

durationPresetCombo->setCurrentText(preset);

break;

}

}

}

} else {

bool ok;

double seconds = input.toDouble(&ok);

if (ok && seconds > 0) {

durationMs = seconds * 1000.0;

durationValid = true;

for (const auto& preset : presetMap().keys()) {

if (qAbs(presetMap()[preset] * 1000.0 - durationMs) < 1.0) {

durationPresetCombo->setCurrentText(preset);

break;

}

}

} else {

int frames = input.toInt(&ok);

if (ok && frames > 0) {

durationMs = frames * (1000.0 / fps);

durationValid = true;

for (const auto& preset : presetMap().keys()) {

if (qAbs(presetMap()[preset] * 1000.0 - durationMs) < 1.0) {

durationPresetCombo->setCurrentText(preset);

break;

}

}

}

}

}

okButton->setEnabled(panelNameValid && durationValid);

{

if (mode == Mode::Edit) return InsertMode::AfterCurrent; // Default for edit mode

QString modeText = insertModeCombo->currentText();

if (modeText == "Split at Cursor") return InsertMode::SplitAtCursor;

if (modeText == "Before Current Panel") return InsertMode::BeforeCurrent;

return InsertMode::AfterCurrent;