代理案例，使用代理实现在table中加入进度条

#include <QStandardItemModel> #include <QStandardItem> #include <QStyledItemDelegate> #include <QListView> #include <QComboBox> #include <QDebug> #include "comboboxdelegate.h" #include "treeviewtest.h" #include "ui_treeviewtest.h" TreeViewTest::TreeViewTest(QWidget *parent) : QMainWindow(parent), ui(new Ui::TreeViewTest) { ui->setupUi(this); m_pStandardItemModel = new QStandardItemModel(this); createTableItem(); connect(ui->pushButton, &QAbstractButton::clicked, this, &TreeViewTest::clickBtn); } TreeViewTest::~TreeViewTest() { delete ui; } void TreeViewTest::clickBtn() { sumScore(m_pStandardItemModel); averageScore(m_pStandardItemModel); } void TreeViewTest::createTableItem() { ui->table->setModel(m_pStandardItemModel); m_pStandardItemModel->setHorizontalHeaderItem(0,new QStandardItem(QStringLiteral("语文"))); m_pStandardItemModel->setHorizontalHeaderItem(1,new QStandardItem(QStringLiteral("数学"))); m_pStandardItemModel->setHorizontalHeaderItem(2,new QStandardItem(QStringLiteral("英语"))); m_pStandardItemModel->setHorizontalHeaderItem(3,new QStandardItem(QStringLiteral("物理"))); m_pStandardItemModel->setHorizontalHeaderItem(4,new QStandardItem(QStringLiteral("生物"))); m_pStandardItemModel->setHorizontalHeaderItem(5,new QStandardItem(QStringLiteral("化学"))); m_pStandardItemModel->setHorizontalHeaderItem(6,new QStandardItem(QStringLiteral("是否合格"))); m_pStandardItemModel->setHorizontalHeaderItem(7,new QStandardItem(QStringLiteral("下载进度"))); m_pStandardItemModel->setVerticalHeaderItem(0,new QStandardItem(QStringLiteral("胡志坤"))); m_pStandardItemModel->setVerticalHeaderItem(1,new QStandardItem(QStringLiteral("王文富"))); m_pStandardItemModel->setVerticalHeaderItem(2,new QStandardItem(QStringLiteral("王大米"))); m_pStandardItemModel->setVerticalHeaderItem(3,new QStandardItem(QStringLiteral("夏天"))); m_pStandardItemModel->setVerticalHeaderItem(4,new QStandardItem(QStringLiteral("王明双"))); m_pStandardItemModel->setVerticalHeaderItem(5,new QStandardItem(QStringLiteral("祥哥"))); m_pStandardItemModel->setVerticalHeaderItem(6,new QStandardItem(QStringLiteral("总分"))); for(int row = 0; row < 6; ++row) { for(int column = 0; column < 6; ++column) { if(2 == row) { m_pStandardItemModel->setItem(row, column, new QStandardItem("50")); } else { m_pStandardItemModel->setItem(row, column, new QStandardItem("60")); } } } ui->table->setModel(m_pStandardItemModel); m_pComboBoxGate = new ComboBoxDelegate; // for(int row = 0; row < 6; ++row) { ui->table->setItemDelegateForRow(row, m_pComboBoxGate); } } void TreeViewTest::sumScore(QStandardItemModel *model) { for(int column = 0; column < 7; ++column) { int sum = 0; if(6 == column) { QStandardItem *item = new QStandardItem; item->setEnabled(false); model->setItem(6, column, item); } else { for(int row = 0; row < 6; ++row) { sum += ui->table->model()->index(row, column).data().toInt(); } QStandardItem *item = new QStandardItem(QString("%1").arg(sum)); item->setEnabled(false); model->setItem(6, column, item); } } } void TreeViewTest::averageScore(QStandardItemModel *model) { for(int row = 0; row < 6; ++row) { int sum = 0; for(int column = 0; column < 6; ++column) { sum += ui->table->model()->index(row, column).data().toInt(); } if(60 <= sum/6 && 2 != row) { model->setItem(row, 6, new QStandardItem(QStringLiteral("合格"))); } else { model->setItem(row, 6, new QStandardItem(QStringLiteral("不合格"))); } } }