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40
41 /*
42 delegate.cpp
43
44 A delegate that allows the user to change integer values from the model
45 using a spin box widget.
46 */
47
48 #include <QtGui>
49
50 #include "delegate.h"
51
52
53 //! [0]
SpinBoxDelegate(QObject * parent)54 SpinBoxDelegate::SpinBoxDelegate(QObject *parent)
55 : QItemDelegate(parent)
56 {
57 }
58 //! [0]
59
60 //! [1]
createEditor(QWidget * parent,const QStyleOptionViewItem &,const QModelIndex &) const61 QWidget *SpinBoxDelegate::createEditor(QWidget *parent,
62 const QStyleOptionViewItem &/* option */,
63 const QModelIndex &/* index */) const
64 {
65 QSpinBox *editor = new QSpinBox(parent);
66 editor->setMinimum(0);
67 editor->setMaximum(100);
68
69 return editor;
70 }
71 //! [1]
72
73 //! [2]
setEditorData(QWidget * editor,const QModelIndex & index) const74 void SpinBoxDelegate::setEditorData(QWidget *editor,
75 const QModelIndex &index) const
76 {
77 int value = index.model()->data(index, Qt::EditRole).toInt();
78
79 QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
80 spinBox->setValue(value);
81 }
82 //! [2]
83
84 //! [3]
setModelData(QWidget * editor,QAbstractItemModel * model,const QModelIndex & index) const85 void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
86 const QModelIndex &index) const
87 {
88 QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
89 spinBox->interpretText();
90 int value = spinBox->value();
91
92 model->setData(index, value, Qt::EditRole);
93 }
94 //! [3]
95
96 //! [4]
updateEditorGeometry(QWidget * editor,const QStyleOptionViewItem & option,const QModelIndex &) const97 void SpinBoxDelegate::updateEditorGeometry(QWidget *editor,
98 const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
99 {
100 editor->setGeometry(option.rect);
101 }
102 //! [4]
103