250 lines
8.5 KiB
C++
250 lines
8.5 KiB
C++
#include "ExQTableWidget.h"
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#include "ui_ExQTableWidget.h"
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ExQTableWidget::ExQTableWidget(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::ExQTableWidget)
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{
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ui->setupUi(this);
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setWindowTitle(QObject::tr("QTableWidget的讲解和使用"));
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m_labCellIndex = new QLabel("当前单元格坐标：", this); //状态栏初始化
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m_labCellIndex->setMinimumWidth(250);
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m_labCellType = new QLabel("当前单元格类型：", this);
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m_labCellType->setMinimumWidth(200);
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m_labStudID = new QLabel("学生ID：", this);
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m_labStudID->setMinimumWidth(200);
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ui->statusBar->addWidget(m_labCellIndex);
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ui->statusBar->addWidget(m_labCellType);
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ui->statusBar->addWidget(m_labStudID);
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ui->chkBoxHeadEdit->setChecked(Qt::Unchecked);
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setCentralWidget(ui->splitter_2);
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on_btnSetHeader_clicked();
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}
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ExQTableWidget::~ExQTableWidget()
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{
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delete ui;
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}
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//为某一行创建items
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void ExQTableWidget::createItemsARow(int row, QString name, QString sex, QDate birth, QString nation, int score, bool isAnime)
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{
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QTableWidgetItem* item = nullptr;
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int stunID = 20190913;
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QString str = "";
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item = new QTableWidgetItem(name, cellType::ctName); //创建name 坐标为(0, 0)的item
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item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter); //文本显示居中
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stunID += row; //学号 = 基数 + 行号
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item->setData(Qt::UserRole, QVariant(stunID)); //设置stunID为data
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ui->tableWidget->setItem(row, fieldColNum::colName, item); //插入item到tableWidget里面
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item = new QTableWidgetItem(sex, cellType::ctSex); //性别
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QIcon icon;
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if (sex == "男")
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icon.addFile(":/images/Image002.ico");
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else
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icon.addFile(":/images/Image003.ico");
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item->setIcon(icon);
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item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
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ui->tableWidget->setItem(row, fieldColNum::colSex, item);
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item = new QTableWidgetItem(birth.toString("yyyy-MM-dd"), cellType::ctBirth);//出生日期
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item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
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ui->tableWidget->setItem(row, fieldColNum::colBirth, item);
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item = new QTableWidgetItem(nation, cellType::ctNation); //籍贯
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item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
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ui->tableWidget->setItem(row, fieldColNum::colNation, item);
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item = new QTableWidgetItem(str.setNum(score), cellType::ctScore);//成绩
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item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
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ui->tableWidget->setItem(row, fieldColNum::colScore, item);
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item = new QTableWidgetItem("喜欢", cellType::ctLikeAnime); //喜欢二次元否?
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if (isAnime)
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item->setCheckState(Qt::Checked);
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else
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item->setCheckState(Qt::Unchecked);
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item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
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item->setBackgroundColor(Qt::gray);
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ui->tableWidget->setItem(row, fieldColNum::colLikeAnime, item);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//设置表头
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void ExQTableWidget::on_btnSetHeader_clicked()
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{
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QTableWidgetItem* item = nullptr;
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QStringList list;
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list << "姓名" << "性别" << "出生日期" << "籍贯" << "分数" << "是否喜欢二次元";
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// ui->tableWidget->setHorizontalHeaderLabels(list); //只是初始化表头的每一列的名字
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ui->tableWidget->setColumnCount(list.count());
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for (int i = 0; i < ui->tableWidget->columnCount(); i++) {
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item = new QTableWidgetItem(list.at(i)); //创建一个item
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QFont font;
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font.setBold(true);
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font.setPointSize(12);
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item->setFont(font); //设置item的字体，颜色，粗体，大小
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item->setTextColor(Qt::red);
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ui->tableWidget->setHorizontalHeaderItem(i, item); //添加item到tableWidget
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}
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}
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//初始化数据表
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void ExQTableWidget::on_btnInitTable_clicked()
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{
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QTime time;
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time = QTime::currentTime();
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qsrand(static_cast<uint>(time.msec() + time.second() * 1000));
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QString name = "学生";
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QString sex = "保密";
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QDate birth(2019, 9, 12);
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QString nation = "武汉";
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int score = 87;
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bool isAnime = true;
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ui->tableWidget->clearContents(); //清除工作区，不清除表头
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int row = ui->tableWidget->rowCount();
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for (int i = 0; i < row; i++) { //初始化一行行的数据
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name = "学生";
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name += QString::number(i);
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int n = qrand() % 2; //产生随机数小于2
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if (n == 0) {
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sex = "男";
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isAnime = true;
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}
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else {
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sex = "女";
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isAnime = false;
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}
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score += 10;
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birth = birth.addDays(30);
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createItemsARow(i, name, sex, birth, nation, score, isAnime);
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}
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}
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//设置表格的行数
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void ExQTableWidget::on_btnSetRow_clicked()
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{
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int n = ui->spinBoxRow->value();
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ui->tableWidget->setRowCount(n);
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}
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//插入行
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void ExQTableWidget::on_btnInsertRow_clicked()
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{
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int currRow = ui->tableWidget->currentRow();
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ui->tableWidget->insertRow(currRow); //插入一行，不会自动为单元格创建item
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createItemsARow(currRow, "插入学生", "女", QDate(2020, 07, 17), "楚国", 87, true);
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}
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//在最后一行添加一行
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void ExQTableWidget::on_btnAddRow_clicked()
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{
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int row = ui->tableWidget->rowCount();
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ui->tableWidget->insertRow(row);
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createItemsARow(row, "添加学生", "女", QDate(2021, 07, 17), "唐朝", 93, true);
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}
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//删除当前行
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void ExQTableWidget::on_btnDelRow_clicked()
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{
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int currRow = ui->tableWidget->currentRow();
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ui->tableWidget->removeRow(currRow); //删除当前行以及其他items
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}
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//自动设置行高
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void ExQTableWidget::on_btnAutoHeight_clicked()
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{
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ui->tableWidget->resizeRowsToContents(); //自动调整所有行的内容，以适应内容高度
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}
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//自动设置列高
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void ExQTableWidget::on_btnAutoWidth_clicked()
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{
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ui->tableWidget->resizeColumnsToContents(); //自动调整所有列的内容，以适应内容宽度
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}
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//读取表格内容到文本
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void ExQTableWidget::on_btnReadToEdit_clicked()
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{
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QTableWidgetItem* item = nullptr;
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QString str = "";
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for (int i = 0; i < ui->tableWidget->rowCount(); i++) {
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str = "";
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for (int j = 0; j < ui->tableWidget->columnCount() - 1; j++) {
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item = ui->tableWidget->item(i, j);
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str += item->text() + " ";
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}
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item = ui->tableWidget->item(i, fieldColNum::colLikeAnime);
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if (item->checkState() == Qt::Checked)
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str += "喜欢二次元";
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else
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str += "不喜欢二次元";
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ui->plainTextEdit->appendPlainText(str);
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}
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}
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//表格可编辑模式
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void ExQTableWidget::on_chkBoxHeadEdit_clicked(bool checked)
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{
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if (checked)
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ui->tableWidget->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::SelectedClicked);
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else
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ui->tableWidget->setEditTriggers(QAbstractItemView::DoubleClicked);
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}
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//间隔行底色
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void ExQTableWidget::on_chkBoxRowColor_clicked(bool checked)
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{
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ui->tableWidget->setAlternatingRowColors(checked);
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}
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//显示行表头
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void ExQTableWidget::on_chkBoxHeadRow_clicked(bool checked)
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{
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ui->tableWidget->horizontalHeader()->setVisible(checked);
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}
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//显示列表头
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void ExQTableWidget::on_chkBoxHeadCol_clicked(bool checked)
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{
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ui->tableWidget->verticalHeader()->setVisible(checked);
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}
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//单元格选择
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void ExQTableWidget::on_radioBtnSelectItem_clicked()
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{
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ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectItems);
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}
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//行选择
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void ExQTableWidget::on_radioBtnSelectRow_clicked()
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{
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ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
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}
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//获取当前item和前一个(点击)item的行列号
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void ExQTableWidget::on_tableWidget_currentCellChanged(int currentRow, int currentColumn, int previousRow, int previousColumn)
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{
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m_labCellIndex->setText("当前单元格坐标：[" + QString::number(currentRow) + "行, " + QString::number(currentColumn) + "列]");
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QTableWidgetItem* item = ui->tableWidget->item(currentRow, currentColumn);
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int type = item->type();
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m_labCellType->setText("当前单元格类型：" + QString::number(type));
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QTableWidgetItem* item2 = ui->tableWidget->item(currentRow, fieldColNum::colName);
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m_labStudID->setText("学生ID：" + item2->data(Qt::UserRole).toString());
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}
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