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    41 

    42 /*

    43     delegate.cpp

    44 

    45     A delegate that allows the user to change integer values from the model

    46     using a spin box widget.

    47 */

    48 

    49 #include <QtGui>

    50 

    51 #include "delegate.h"

    52 

    53 

    54 //! [0]

    55 SpinBoxDelegate::SpinBoxDelegate(QObject *parent)

    56     : QItemDelegate(parent)

    57 {

    58 }

    59 //! [0]

    60 

    61 //! [1]

    62 QWidget *SpinBoxDelegate::createEditor(QWidget *parent,

    63     const QStyleOptionViewItem &/* option */,

    64     const QModelIndex &/* index */) const

    65 {

    66     QSpinBox *editor = new QSpinBox(parent);

    67     editor->setMinimum(0);

    68     editor->setMaximum(100);

    69 

    70     return editor;

    71 }

    72 //! [1]

    73 

    74 //! [2]

    75 void SpinBoxDelegate::setEditorData(QWidget *editor,

    76                                     const QModelIndex &index) const

    77 {

    78     int value = index.model()->data(index, Qt::EditRole).toInt();

    79 

    80     QSpinBox *spinBox = static_cast<QSpinBox*>(editor);

    81     spinBox->setValue(value);

    82 }

    83 //! [2]

    84 

    85 //! [3]

    86 void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,

    87                                    const QModelIndex &index) const

    88 {

    89     QSpinBox *spinBox = static_cast<QSpinBox*>(editor);

    90     spinBox->interpretText();

    91     int value = spinBox->value();

    92 

    93     model->setData(index, value, Qt::EditRole);

    94 }

    95 //! [3]

    96 

    97 //! [4]

    98 void SpinBoxDelegate::updateEditorGeometry(QWidget *editor,

    99     const QStyleOptionViewItem &option, const QModelIndex &/* index */) const

   100 {

   101     editor->setGeometry(option.rect);

   102 }

   103 //! [4]