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#include <QtGui>
#include "window.h"
Window::Window(QWidget *parent)
: QWidget(parent)
{
setupModel();
nameLabel = new QLabel(tr("Na&me:"));
nameEdit = new QLineEdit();
addressLabel = new QLabel(tr("&Address:"));
addressEdit = new QTextEdit();
ageLabel = new QLabel(tr("A&ge (in years):"));
ageSpinBox = new QSpinBox();
nextButton = new QPushButton(tr("&Next"));
previousButton = new QPushButton(tr("&Previous"));
nameLabel->setBuddy(nameEdit);
addressLabel->setBuddy(addressEdit);
ageLabel->setBuddy(ageSpinBox);
mapper = new QDataWidgetMapper(this);
mapper->setModel(model);
mapper->addMapping(nameEdit, 0);
mapper->addMapping(addressEdit, 1);
mapper->addMapping(ageSpinBox, 2);
connect(previousButton, SIGNAL(clicked()),
mapper, SLOT(toPrevious()));
connect(nextButton, SIGNAL(clicked()),
mapper, SLOT(toNext()));
connect(mapper, SIGNAL(currentIndexChanged(int)),
this, SLOT(updateButtons(int)));
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(ageLabel, 3, 0, 1, 1);
layout->addWidget(ageSpinBox, 3, 1, 1, 1);
setLayout(layout);
setWindowTitle(tr("Simple Widget Mapper"));
mapper->toFirst();
}
void Window::setupModel()
{
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 ages;
ages << "20" << "31" << "32" << "19" << "26";
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(ages[row]);
model->setItem(row, 2, item);
}
}
void Window::updateButtons(int row)
{
previousButton->setEnabled(row > 0);
nextButton->setEnabled(row < model->rowCount() - 1);
}</pre>
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