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50
51/*
52 delegate.cpp
53
54 A delegate that allows the user to change integer values from the model
55 using a spin box widget.
56*/
57
58#include "delegate.h"
59
60#include <QSpinBox>
61
62//! [0]
63SpinBoxDelegate::SpinBoxDelegate(QObject *parent)
64 : QStyledItemDelegate(parent)
65{
66}
67//! [0]
68
69//! [1]
70QWidget *SpinBoxDelegate::createEditor(QWidget *parent,
71 const QStyleOptionViewItem &/* option */,
72 const QModelIndex &/* index */) const
73{
74 QSpinBox *editor = new QSpinBox(parent);
75 editor->setFrame(false);
76 editor->setMinimum(0);
77 editor->setMaximum(100);
78
79 return editor;
80}
81//! [1]
82
83//! [2]
84void SpinBoxDelegate::setEditorData(QWidget *editor,
85 const QModelIndex &index) const
86{
87 int value = index.model()->data(index, role: Qt::EditRole).toInt();
88
89 QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
90 spinBox->setValue(value);
91}
92//! [2]
93
94//! [3]
95void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
96 const QModelIndex &index) const
97{
98 QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
99 spinBox->interpretText();
100 int value = spinBox->value();
101
102 model->setData(index, value, role: Qt::EditRole);
103}
104//! [3]
105
106//! [4]
107void SpinBoxDelegate::updateEditorGeometry(QWidget *editor,
108 const QStyleOptionViewItem &option,
109 const QModelIndex &/* index */) const
110{
111 editor->setGeometry(option.rect);
112}
113//! [4]
114

source code of qtbase/examples/widgets/itemviews/spinboxdelegate/delegate.cpp