QT关于tablewidget的自定义代理，加入自定义组合控件（qlineedit+qcombobox）

自定义代理

#ifndef DELEGATE_H

#define DELEGATE_H

#include <QObject>

#include <QWidget>

#include <QStyledItemDelegate>

#include <QItemDelegate>

#include <QModelIndex>

#include <QPainter>

#include"ScanData/inputagedlg.h"

#include"ui_inputagedlg.h"

#define  AGECOLUM 13

class Delegate : public QItemDelegate

{

     Q_OBJECT

public:

    Delegate(QObject *parent = nullptr);

     ~Delegate();

    void paint(QPainter *painter, const QStyleOptionViewItem &option,const QModelIndex &index) const;

    QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;

    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;

    void setEditorData(QWidget *editor, const QModelIndex &index) const;

    void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;

private:

};

#endif// DELEGATE_H

#include "delegate.h"

#include<QComboBox>

#include<QLineEdit>

# pragma execution_character_set("utf-8")

Delegate::Delegate(QObject *parent): QItemDelegate(parent)

{

}

Delegate::~Delegate()

{

}

void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option,const QModelIndex &index) const

 {

     QItemDelegate::paint(painter, option, index);

 }

QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const

 {

     return QItemDelegate::sizeHint(option, index);

 }

QWidget *Delegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const

{

    if (index.isValid() && index.column() == AGECOLUM)

    {

       InputAgeDlg *editor=new InputAgeDlg(parent);

       editor->installEventFilter(const_cast<Delegate *>(this));

       return editor;

    }

    else

    {

        return QItemDelegate::createEditor(parent, option, index);

    }

}

void Delegate::setEditorData(QWidget *editor, const QModelIndex &index) const

{

    if (index.isValid() && index.column() == AGECOLUM)

    {

        QString value = index.model()->data(index, Qt::DisplayRole).toString();

        InputAgeDlg *inputdge = qobject_cast<InputAgeDlg *>(editor);

        if(!value.isEmpty())

        {

            if(value.contains(tr("岁")))

            {

                inputdge->set_age_uint(tr("岁"));

                inputdge->set_Age(value.remove(tr("岁")));

            }

            if(value.contains(tr("月")))

            {

                inputdge->set_age_uint(tr("月"));

                inputdge->set_Age(value.remove(tr("月")));

            }

            if(value.contains(tr("天")))

            {

                inputdge->set_age_uint(tr("天"));

                inputdge->set_Age(value.remove(tr("天")));

            }

            if(value.contains(tr("小时")))

            {

                inputdge->set_age_uint(tr("小时"));

                inputdge->set_Age(value.remove(tr("小时")));

            }

        }

    }

    else

    {

        QItemDelegate::setEditorData(editor, index);

    }

}

void Delegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const

{

    if (index.isValid() && index.column() == AGECOLUM)

    {

        InputAgeDlg *inputdge = qobject_cast<InputAgeDlg *>(editor);

        if(inputdge->age.isEmpty()||inputdge->age==" ")

            model->setData(index, "");

        else

            model->setData(index, inputdge->age+inputdge->age_uint);

    }

    else

    {

        QItemDelegate::setModelData(editor, model, index);

    }

}

自定义控件

#ifndef INPUTAGEDLG_H

#define INPUTAGEDLG_H

#include <QDialog>

namespace Ui {

class InputAgeDlg;

}

class InputAgeDlg : public QWidget

{

    Q_OBJECT

public:

    explicit InputAgeDlg(QWidget *parent = 0);

    ~InputAgeDlg();

    QString getage();

    QString getage_unit();

    void set_Age(const QString& a);

    void set_age_uint(const QString &u);

public:

    Ui::InputAgeDlg *ui;

    QString age;

    QString age_uint;

private slots:

    void on_ageedit_editingFinished();

    void on_ageunitbox_currentIndexChanged(const QString &arg1);

};

#endif // INPUTAGEDLG_H

#include "inputagedlg.h"

#include "ui_inputagedlg.h"

# pragma execution_character_set("utf-8")

InputAgeDlg::InputAgeDlg(QWidget *parent) :

    QWidget(parent),

    ui(new Ui::InputAgeDlg)

{

    ui->setupUi(this);

    QStringList age_unit={tr("岁"),tr("月"),tr("天"),tr("小时")};

    ui->ageunitbox->addItems(age_unit);

    ui->ageedit->setValidator(new QRegExpValidator(QRegExp("[0-9.]+$")));   //只能输入数字

}

InputAgeDlg::~InputAgeDlg()

{

    delete ui;

}

QString InputAgeDlg::getage()

{

    return ui->ageedit->text();

}

QString InputAgeDlg::getage_unit()

{

    return ui->ageunitbox->currentText();

}

void InputAgeDlg::set_Age(const QString &a)

{

    ui->ageedit->setText(a);

}

void InputAgeDlg::set_age_uint(const QString &u)

{

    ui->ageunitbox->setCurrentText(u);

}

void InputAgeDlg::on_ageedit_editingFinished()

{

   age=ui->ageedit->text();

   age_uint=ui->ageunitbox->currentText();

}

void InputAgeDlg::on_ageunitbox_currentIndexChanged(const QString &arg1)

{

    age=ui->ageedit->text();

    age_uint=arg1;

}