使用QStandardItemModel、QItemSelectionModel 绑定到tableView

最新推荐文章于 2025-03-18 17:44:15 发布

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最新推荐文章于 2025-03-18 17:44:15 发布 · 713 阅读

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#c++ #qt

1、使用QStandardItemModel、QItemSelectionModel 绑定到tableView，展示tableView的新增、插入，删除、生成文档操作；

2、文本文件的读写

3、遍历QStandardItemModel

4、遍历 QItemSelectionModel

布局

.h

#ifndef TABLEMODELVIEWEXAMPLE_H
#define TABLEMODELVIEWEXAMPLE_H

#include <QMainWindow>
#include <QLabel>
#include <QStandardItemModel>
#include <QItemSelectionModel>

#define     FixedColumnCount    6       //文件固定6列


namespace Ui {
class tableModelViewExample;
}

class tableModelViewExample : public QMainWindow
{
    Q_OBJECT
private:
    QLabel *labCurFile;
    QLabel *labCellPos;
    QLabel *labCellText;

    QStandardItemModel *m_model;
    QItemSelectionModel *m_selection;

    void iniModelData(QStringList&);

    void openDataFile(QString aFileName);

    void setSelectionItemAlign(Qt::Alignment atextAlignment);
public:
    explicit tableModelViewExample(QWidget *parent = nullptr);
    ~tableModelViewExample();

private slots:
    void do_currentChanged(const QModelIndex &current, const QModelIndex &previous);



    void on_actOpen_triggered();

    void on_actAppend_triggered();

    void on_actDelete_triggered();

    void on_actInsert_triggered();

    void on_actModelData_triggered();

    void on_actAlignLeft_triggered();

    void on_actAlignLeft_triggered(bool checked);

    void on_actAlignCenter_triggered(bool checked);

    void on_actAlignRight_triggered(bool checked);

    void on_actFontBold_triggered(bool checked);

    void on_actSave_triggered();

private:
    Ui::tableModelViewExample *ui;
};

#endif // TABLEMODELVIEWEXAMPLE_H

.cpp

#include "tablemodelviewexample.h"
#include "ui_tablemodelviewexample.h"

#include <QFileDialog>
#include <QTextStream>
#include <QRegularExpression>

void tableModelViewExample::openDataFile(QString aFileName)
{
    QStringList aFileContent;
    QFile aFile(aFileName);
    if(aFile.open(QIODevice::ReadOnly|QIODevice::Text))
    {
        QTextStream aStream(&aFile);
        ui->plainTextEdit->clear();
        while(!aStream.atEnd())
        {
            QString str=aStream.readLine();
            ui->plainTextEdit->appendPlainText(str);
            aFileContent.append(str);
        }
        aFile.close();

        labCurFile->setText("当前文件："+aFileName);
        ui->actAppend->setEnabled(true);
        ui->actInsert->setEnabled(true);
        ui->actDelete->setEnabled(true);
        ui->actSave->setEna