qt qtablewidget自定义表头

目前项目需要通过自定义表头，来实现某些效果。现在定义了QComBox和QCheckBox，直接上代码：

实现了QCheckBox的三态显示.

h文件如下：

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QTableView>
#include <QStandardItemModel>
#include <QHeaderView>
#include <QCheckBox>
#include <QComboBox>

class CustomHeaderView:public QHeaderView
{
    Q_OBJECT

public:
    // 默认水平方向
    CustomHeaderView(Qt::Orientation ori = Qt::Horizontal, QWidget*parent = 0);

    //自定义头部，主要实现这个函数
protected:
    void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const;

public slots:
    void slt_checkbox_click(bool);
    void slt_checkbox_stateChanged(int state);
    void slt_combox_item_click(QString );
    void slt_combox_item_click(int currentIndex);

private:
    QCheckBox *m_checkbox;
    QComboBox *m_combox;
};

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    QTableView *m_tabView;
    CustomHeaderView *head;

};

#endif // MAINWINDOW_H

cpp如下

#include <QDebug>
#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    this->setFixedSize(800,480);

    m_tabView = new QTableView(this);
    m_tabView->setFixedSize(800,480);
    QStandardItemModel *model = new QStandardItemModel();
    model->setColumnCount(6);
    m_tabView->setModel(model);

   /*CustomHeaderView **/head = new CustomHeaderView(Qt::Horizontal,this);
    head->setSectionResizeMode(QHeaderView::Fixed);
    m_tabView->setHorizontalHeader(head);
}

MainWindow::~MainWindow()
{

}

CustomHeaderView::CustomHeaderView(Qt::Orientation ori, QWidget *parent)
    :QHeaderView(ori,parent)
{
    m_checkbox = new QCheckBox(this);
    m_combox = new QComboBox(this);
    m_checkbox->setTristate(true);

    m_combox->addItem("item1");
    m_combox->addItem("item2");
    m_combox->addItem("item3");

//    connect(m_checkbox,SIGNAL(clicked(bool)),this, SLOT(slt_checkbox_click(bool)));
    connect(m_checkbox,SIGNAL(stateChanged(int)),this, SLOT(slt_checkbox_stateChanged(int)));
//    connect(m_combox, SIGNAL(currentIndexChanged(QString)),this,SLOT(slt_combox_item_click(QString)));
    connect(m_combox, SIGNAL(currentIndexChanged(int)),this,SLOT(slt_combox_item_click(int)));
}

void CustomHeaderView::paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const
{
    QHeaderView::paintSection(painter,rect,logicalIndex);

    //logicalIndex 当前第几列，也可以自定义显示其他控件；
    if(logicalIndex == 0)
    {
        QRect tmp;
        tmp.setSize(QSize(20,20));
        tmp.moveCenter(rect.center());
        m_checkbox->setGeometry(tmp);
    }
    else if(logicalIndex ==2)
    {
        m_combox->setGeometry(rect);
    }
}

void CustomHeaderView::slt_checkbox_click(bool state)
{
//
    qDebug() << "slt_checkbox_click" << state;
    //此处可以自定义信号
}

void CustomHeaderView::slt_checkbox_stateChanged(int state)
{
    m_checkbox->setCheckState((Qt::CheckState)state);
}

void CustomHeaderView::slt_combox_item_click(QString itemstr)
{

//    slt_checkbox_stateChanged((Qt::CheckState)state);
    qDebug() << "slt_combox_item_click" << itemstr;
    //此处可以自定义信号

}

void CustomHeaderView::slt_combox_item_click(int currentIndex)
{

    slt_checkbox_stateChanged((Qt::CheckState)currentIndex);
    qDebug() << "slt_combox_item_click" << currentIndex;
    //此处可以自定义信号

}

main.cpp文件

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

pro文件如下。

#-------------------------------------------------
#
# Project created by QtCreator 2020-12-30T15:16:30
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = CustomTableHeadView
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

可以通过这个实现一些其它的应用场景，特此记录一下。

下载链接如下：

qttablewidge自定义表头QHeaderView资源-CSDN下载