123 lines
5.0 KiB
C++
123 lines
5.0 KiB
C++
#include "ExQStandardItemModel.h"
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#include "ui_ExQStandardItemModel.h"
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#include <QDebug>
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#include <QFileDialog>
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ExQStandardItemModel::ExQStandardItemModel(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::ExQStandardItemModel)
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{
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ui->setupUi(this);
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setWindowTitle(QObject::tr("QTableView和QStandardItemModel的用法"));
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ui->mainToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon); //设置主工具栏的图标样式风格
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m_labCurrFile = new QLabel("当前文件：", this); //设置状态栏
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m_labCellPos = new QLabel("当前单元格：", this);
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m_labCellText = new QLabel("单元格内容：", this);
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m_labCurrFile->setMinimumWidth(200);
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m_labCellPos->setMinimumWidth(200);
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m_labCellText->setMinimumWidth(200);
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ui->statusBar->addWidget(m_labCurrFile);
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ui->statusBar->addWidget(m_labCellPos);
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ui->statusBar->addWidget(m_labCellText);
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m_model = new QStandardItemModel(2, 6, this); //设置数据模型，一开始设置为默认的2行6列表的一个表
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m_selectModet = new QItemSelectionModel(m_model, this); //设置选择模型
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ui->tableView->setModel(m_model); //设置数据模型
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ui->tableView->setSelectionModel(m_selectModet); //设置选择模型
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ui->tableView->setSelectionMode(QAbstractItemView::ExtendedSelection); //设置选择模式
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ui->tableView->setSelectionBehavior(QAbstractItemView::SelectItems); //设置选择行为
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connect(m_selectModet, SIGNAL(currentChanged(QModelIndex, QModelIndex)), this, SLOT(onCurrentChanged(QModelIndex, QModelIndex))); //选择当前单元格变化时的信号与槽
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}
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ExQStandardItemModel::~ExQStandardItemModel()
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{
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delete ui;
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}
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//从list初始化数据模型QTableView里面
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void ExQStandardItemModel::init(QStringList &list)
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{
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int rowCount = list.count(); //文本行数，第一行为表头
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m_model->setRowCount(rowCount - 1);
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QString header = list.at(0);
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QStringList headerList = header.split(QRegExp("\\s+"), QString::SkipEmptyParts); //通过一个或者多个空格或者tab按键切割
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m_model->setHorizontalHeaderLabels(headerList); //设置表头
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QStandardItem *item = nullptr; //此处开始，设置表格数据
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QStringList tempList;
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int j = 0;
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for (int i = 1; i < rowCount; i++) {
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QString aLineText = list.at(i);
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tempList = aLineText.split(QRegExp("\\s+"), QString::SkipEmptyParts);//正则表达式中\s匹配任何空白字符，包括空格、制表符、换页符等等, 等价于[ \f\n\r\t\v]
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for ( j = 0; j < 6 - 1; j++) { //设置前5列的item
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item = new QStandardItem(tempList.at(j));
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m_model->setItem(i - 1, j, item);
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}
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item = new QStandardItem(tempList.at(j)); //最后一列的item
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item->setCheckable(true); //设置有检查框
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if ( tempList.at(j) == "https://www.google.com")
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item->setCheckState(Qt::Unchecked);
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else
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item->setCheckState(Qt::Checked);
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m_model->setItem(i - 1, 5, item);
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}
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}
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//当前单元格发生变化时
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void ExQStandardItemModel::onCurrentChanged(const QModelIndex ¤t, const QModelIndex &previous)
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{
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}
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//action+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//打开和导入文件，并且在plainTextEdit里面显示
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void ExQStandardItemModel::on_actOpen_triggered()
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{
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QString currPath = QCoreApplication::applicationDirPath();
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QString fileName = QFileDialog::getOpenFileName(this, "打开一个文件", currPath, "导入数据文件(*txt); 所有文件(*.*)");
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if (fileName.isEmpty())
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return;
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QStringList list;
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QFile file(fileName);
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if (file.open(QIODevice::ReadOnly | QIODevice::Text)) { //只读形式打开文本文件
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QTextStream stream(&file); //用文本流读取文件
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ui->plainTextEdit->clear();
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while (!stream.atEnd()) { //读取文本中文本的内容
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QString str = stream.readLine();
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ui->plainTextEdit->appendPlainText(str);
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list.append(str);
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}
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file.close(); //关闭
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m_labCurrFile->setText("当前文件：" + fileName); //设置状态栏
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ui->actAppend->setEnabled(true); //设置action的Enabled的属性
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ui->actInsert->setEnabled(true);
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ui->actDelete->setEnabled(true);
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ui->actSave->setEnabled(true);
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}
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init(list); //初始化.txt的数据
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}
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//在表格的最后一行添加一行
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void ExQStandardItemModel::on_actAppend_triggered()
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{
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}
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