CONFIG   += c++11

#ifndef PROGRESSBARDELEGATE_H#define PROGRESSBARDELEGATE_H#include <QItemDelegate>class ProgressBarDelegate : public QItemDelegate{    Q_OBJECTpublic:    explicit ProgressBarDelegate(QObject *parent = 0);    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;signals:public slots:};#endif // PROGRESSBARDELEGATE_H

#include "progressbardelegate.h"#include <QPainter>#include <QApplication>ProgressBarDelegate::ProgressBarDelegate(QObject *parent) :    QItemDelegate(parent){}void ProgressBarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const{    if(index.column() == 1) {        int value = http://www.mamicode.com/index.model()->data(index).toInt();        QStyleOptionProgressBarV2 progressBarOption;        progressBarOption.rect = option.rect.adjusted(4, 4, -4, -4);        progressBarOption.minimum = 0;        progressBarOption.maximum = 100;        progressBarOption.textAlignment = Qt::AlignRight;        progressBarOption.textVisible = true;        progressBarOption.progress = value;        progressBarOption.text = tr("%1%").arg(progressBarOption.progress);        painter->save();        if (option.state & QStyle::State_Selected) {            painter->fillRect(option.rect, option.palette.highlight());                    painter->setBrush(option.palette.highlightedText());        }                QApplication::style()->drawControl(QStyle::CE_ProgressBar, &progressBarOption, painter);        painter->restore();    } else {        return QItemDelegate::paint (painter, option, index);    }}

#ifndef TABLEMODEL_H#define TABLEMODEL_H#include <QAbstractTableModel>class TableModel : public QAbstractTableModel{    Q_OBJECTpublic:    explicit TableModel(QObject *parent = 0);    int rowCount(const QModelIndex &parent) const;    int columnCount(const QModelIndex &parent) const;    QVariant data(const QModelIndex &index, int role) const;    Qt::ItemFlags flags(const QModelIndex &index) const;    void setHorizontalHeader(const QStringList& headers);    QVariant headerData(int section, Qt::Orientation orientation, int role) const;    void setData(const QVector<QStringList>& data);    QVector<QStringList>& DataVector() {return m_data;}    ~TableModel(void);signals:public slots:private:    QStringList m_HorizontalHeader;    QVector<QStringList> m_data;};#endif // TABLEMODEL_H

#include "tablemodel.h"TableModel::TableModel(QObject *parent) :    QAbstractTableModel(parent){}TableModel::~TableModel(){}int TableModel::rowCount(const QModelIndex &parent) const{    return m_data.size();}int TableModel::columnCount(const QModelIndex &parent) const{    return m_HorizontalHeader.count();}QVariant TableModel::data(const QModelIndex &index, int role) const{    if (!index.isValid())        return QVariant();    if (role == Qt::DisplayRole) {        int ncol = index.column();        int nrow =  index.row();        QStringList values = m_data.at(nrow);        if (values.size() > ncol)            return values.at(ncol);        else        return QVariant();    }    return QVariant();}Qt::ItemFlags TableModel::flags(const QModelIndex &index) const{    if (!index.isValid())        return Qt::NoItemFlags;    Qt::ItemFlags flag = QAbstractItemModel::flags(index);    // flag|=Qt::ItemIsEditable // 设置单元格可编辑,此处注释,单元格无法被编辑    return flag;}void TableModel::setHorizontalHeader(const QStringList &headers){    m_HorizontalHeader =  headers;}QVariant TableModel::headerData(int section, Qt::Orientation orientation, int role) const{    if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {        return m_HorizontalHeader.at(section);    }    return QAbstractTableModel::headerData(section, orientation, role);}void TableModel::setData(const QVector<QStringList> &data){    m_data = data;}

#ifndef TABLEVIEW_H#define TABLEVIEW_H#include <QTableView>class TableModel;class ProgressBarDelegate;class TableView : public QTableView{    Q_OBJECTpublic:    explicit TableView(QWidget *parent = 0);    TableModel* tableModel() {return m_model;}    ~TableView();signals:public slots:private:    void iniData();private:    TableModel *m_model;    ProgressBarDelegate *m_progressBarDelegate;};#endif // TABLEVIEW_H

#include "tableview.h"#include "tablemodel.h"#include "progressbardelegate.h"TableView::TableView(QWidget *parent) :    QTableView(parent){    iniData();}TableView::~TableView(){    delete m_model;}void TableView::iniData(){    m_model = new TableModel();    this->setModel(m_model);    QStringList headers;    headers << "Id" << "Progress";    m_model->setHorizontalHeader(headers);    QVector<QStringList> data;    data.append(QStringList() << "1" << "22");    data.append(QStringList() << "2" << "32");    data.append(QStringList() << "3" << "2");    data.append(QStringList() << "4" << "80");    data.append(QStringList() << "5" << "40");    m_model->setData(data);    m_progressBarDelegate = new ProgressBarDelegate(this);    this->setItemDelegate(m_progressBarDelegate);    emit m_model->layoutChanged();    this->setColumnWidth(1, 500);}

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>class TableView;class QTimer;class MainWindow : public QWidget{    Q_OBJECTpublic:    MainWindow(QWidget *parent = 0);    ~MainWindow();private:    void init();    void initTimer();public slots:    void updateProgressValue();private:    TableView *tv;    QTimer *timer;};#endif // MAINWINDOW_H

#include "mainwindow.h"#include "tableview.h"#include "tablemodel.h"#include <QLayout>#include <QVBoxLayout>#include <QTimer>#include <QDebug>MainWindow::MainWindow(QWidget *parent)    : QWidget(parent){    init();    initTimer();}MainWindow::~MainWindow(){    delete tv;    delete timer;}void MainWindow::init(){    this->resize(800, 600);    tv = new TableView(this);    QVBoxLayout* layout = new QVBoxLayout();    layout->addWidget(tv);    this->setLayout(layout);    //this->layout()->addWidget(tv);}void MainWindow::initTimer(){    timer = new QTimer(this);    timer->setInterval(1000);    connect(timer, SIGNAL(timeout()), this, SLOT(updateProgressValue()));    timer->start();}void MainWindow::updateProgressValue(){    TableModel* model = tv->tableModel();    QVector<QStringList>& data = http://www.mamicode.com/model->DataVector();    for (QStringList& v : data) {        int value =http://www.mamicode.com/v.at(1).toInt();        qDebug() << value;        if (value < 100) {            value += 2;            qDebug() << value;            v[1] = QString::number(value);            emit model->layoutChanged();        }    }}