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| |
| #include <QtWidgets> |
| #include "window.h" |
| |
| //! [Set up widgets] |
| Window::Window(QWidget *parent) |
| : QWidget(parent) |
| { |
| setupModel(); |
| |
| nameLabel = new QLabel(tr("Na&me:")); |
| nameEdit = new QLineEdit(); |
| addressLabel = new QLabel(tr("&Address:")); |
| addressEdit = new QTextEdit(); |
| typeLabel = new QLabel(tr("&Type:")); |
| typeComboBox = new QComboBox(); |
| nextButton = new QPushButton(tr("&Next")); |
| previousButton = new QPushButton(tr("&Previous")); |
| |
| nameLabel->setBuddy(nameEdit); |
| addressLabel->setBuddy(addressEdit); |
| typeLabel->setBuddy(typeComboBox); |
| |
| typeComboBox->setModel(typeModel); |
| //! [Set up widgets] |
| |
| //! [Set up the mapper] |
| mapper = new QDataWidgetMapper(this); |
| mapper->setModel(model); |
| mapper->addMapping(nameEdit, 0); |
| mapper->addMapping(addressEdit, 1); |
| mapper->addMapping(typeComboBox, 2, "currentIndex"); |
| //! [Set up the mapper] |
| |
| //! [Set up connections and layouts] |
| connect(previousButton, &QAbstractButton::clicked, |
| mapper, &QDataWidgetMapper::toPrevious); |
| connect(nextButton, &QAbstractButton::clicked, |
| mapper, &QDataWidgetMapper::toNext); |
| connect(mapper, &QDataWidgetMapper::currentIndexChanged, |
| this, &Window::updateButtons); |
| |
| QGridLayout *layout = new QGridLayout(); |
| layout->addWidget(nameLabel, 0, 0, 1, 1); |
| layout->addWidget(nameEdit, 0, 1, 1, 1); |
| layout->addWidget(previousButton, 0, 2, 1, 1); |
| layout->addWidget(addressLabel, 1, 0, 1, 1); |
| layout->addWidget(addressEdit, 1, 1, 2, 1); |
| layout->addWidget(nextButton, 1, 2, 1, 1); |
| layout->addWidget(typeLabel, 3, 0, 1, 1); |
| layout->addWidget(typeComboBox, 3, 1, 1, 1); |
| setLayout(layout); |
| |
| setWindowTitle(tr("Delegate Widget Mapper")); |
| mapper->toFirst(); |
| } |
| //! [Set up connections and layouts] |
| |
| //! [Set up the model] |
| void Window::setupModel() |
| { |
| QStringList items; |
| items << tr("Home") << tr("Work") << tr("Other"); |
| typeModel = new QStringListModel(items, this); |
| |
| model = new QStandardItemModel(5, 3, this); |
| QStringList names; |
| names << "Alice" << "Bob" << "Carol" << "Donald" << "Emma"; |
| QStringList addresses; |
| addresses << "<qt>123 Main Street<br/>Market Town</qt>" |
| << "<qt>PO Box 32<br/>Mail Handling Service" |
| "<br/>Service City</qt>" |
| << "<qt>The Lighthouse<br/>Remote Island</qt>" |
| << "<qt>47338 Park Avenue<br/>Big City</qt>" |
| << "<qt>Research Station<br/>Base Camp<br/>Big Mountain</qt>"; |
| |
| QStringList types; |
| types << "0" << "1" << "2" << "0" << "2"; |
| |
| for (int row = 0; row < 5; ++row) { |
| QStandardItem *item = new QStandardItem(names[row]); |
| model->setItem(row, 0, item); |
| item = new QStandardItem(addresses[row]); |
| model->setItem(row, 1, item); |
| item = new QStandardItem(types[row]); |
| model->setItem(row, 2, item); |
| } |
| } |
| //! [Set up the model] |
| |
| //! [Slot for updating the buttons] |
| void Window::updateButtons(int row) |
| { |
| previousButton->setEnabled(row > 0); |
| nextButton->setEnabled(row < model->rowCount() - 1); |
| } |
| //! [Slot for updating the buttons] |