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50
51#include "window.h"
52
53#include <QtWidgets>
54
55//! [Set up widgets]
56Window::Window(QWidget *parent)
57 : QWidget(parent)
58{
59 setupModel();
60
61 nameLabel = new QLabel(tr(s: "Na&me:"));
62 nameEdit = new QLineEdit();
63 addressLabel = new QLabel(tr(s: "&Address:"));
64 addressEdit = new QTextEdit();
65 ageLabel = new QLabel(tr(s: "A&ge (in years):"));
66 ageSpinBox = new QSpinBox();
67 nextButton = new QPushButton(tr(s: "&Next"));
68 previousButton = new QPushButton(tr(s: "&Previous"));
69
70 nameLabel->setBuddy(nameEdit);
71 addressLabel->setBuddy(addressEdit);
72 ageLabel->setBuddy(ageSpinBox);
73//! [Set up widgets]
74
75//! [Set up the mapper]
76 mapper = new QDataWidgetMapper(this);
77 mapper->setModel(model);
78 mapper->addMapping(widget: nameEdit, section: 0);
79 mapper->addMapping(widget: addressEdit, section: 1);
80 mapper->addMapping(widget: ageSpinBox, section: 2);
81
82 connect(sender: previousButton, signal: &QAbstractButton::clicked, receiver: mapper, slot: &QDataWidgetMapper::toPrevious);
83 connect(sender: nextButton, signal: &QAbstractButton::clicked, receiver: mapper, slot: &QDataWidgetMapper::toNext);
84 connect(sender: mapper, signal: &QDataWidgetMapper::currentIndexChanged, receiver: this, slot: &Window::updateButtons);
85//! [Set up the mapper]
86
87//! [Set up the layout]
88 QGridLayout *layout = new QGridLayout();
89 layout->addWidget(nameLabel, row: 0, column: 0, rowSpan: 1, columnSpan: 1);
90 layout->addWidget(nameEdit, row: 0, column: 1, rowSpan: 1, columnSpan: 1);
91 layout->addWidget(previousButton, row: 0, column: 2, rowSpan: 1, columnSpan: 1);
92 layout->addWidget(addressLabel, row: 1, column: 0, rowSpan: 1, columnSpan: 1);
93 layout->addWidget(addressEdit, row: 1, column: 1, rowSpan: 2, columnSpan: 1);
94 layout->addWidget(nextButton, row: 1, column: 2, rowSpan: 1, columnSpan: 1);
95 layout->addWidget(ageLabel, row: 3, column: 0, rowSpan: 1, columnSpan: 1);
96 layout->addWidget(ageSpinBox, row: 3, column: 1, rowSpan: 1, columnSpan: 1);
97 setLayout(layout);
98
99 setWindowTitle(tr(s: "Simple Widget Mapper"));
100 mapper->toFirst();
101}
102//! [Set up the layout]
103
104//! [Set up the model]
105void Window::setupModel()
106{
107 model = new QStandardItemModel(5, 3, this);
108
109 QStringList names;
110 names << "Alice" << "Bob" << "Carol" << "Donald" << "Emma";
111
112 QStringList addresses;
113 addresses << "<qt>123 Main Street<br/>Market Town</qt>"
114 << "<qt>PO Box 32<br/>Mail Handling Service"
115 "<br/>Service City</qt>"
116 << "<qt>The Lighthouse<br/>Remote Island</qt>"
117 << "<qt>47338 Park Avenue<br/>Big City</qt>"
118 << "<qt>Research Station<br/>Base Camp<br/>Big Mountain</qt>";
119
120 QStringList ages;
121 ages << "20" << "31" << "32" << "19" << "26";
122
123 for (int row = 0; row < 5; ++row) {
124 QStandardItem *item = new QStandardItem(names[row]);
125 model->setItem(row, column: 0, item);
126 item = new QStandardItem(addresses[row]);
127 model->setItem(row, column: 1, item);
128 item = new QStandardItem(ages[row]);
129 model->setItem(row, column: 2, item);
130 }
131}
132//! [Set up the model]
133
134//! [Slot for updating the buttons]
135void Window::updateButtons(int row)
136{
137 previousButton->setEnabled(row > 0);
138 nextButton->setEnabled(row < model->rowCount() - 1);
139}
140//! [Slot for updating the buttons]
141

source code of qtbase/examples/widgets/itemviews/simplewidgetmapper/window.cpp