Qt TableView之自定义代理按键

Qt TableView之自定义代理按键

这篇文章简单介绍了如何在QTableView中使用代理添加自定义按键,这里只是做一个简单的介绍,实现思路有多种多样,这只是其中一种,如果想深度学习,可以关注我后期的系列文章。
Qt TableView之自定义代理按键_第1张图片
主要思路:
新定义一个类ButtonDelegate,让此类继承QStyledItemDelegate,然后重写paint方法和editorEvent方法,具体代码如下:

头文件

#ifndef BUTTONDELEGATE_H
#define BUTTONDELEGATE_H

#include 
#include 

class ButtonDelegate : public QStyledItemDelegate
{
Q_OBJECT
public:
    explicit ButtonDelegate(QObject *parent = nullptr);
    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
    bool editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option,
                     const QModelIndex &index) override;
public:
signals:
    void clicked(const QModelIndex &index);
};

#endif // BUTTONDELEGATE_H
#include "buttondelegate.h"
#include 
#include 
ButtonDelegate::ButtonDelegate(QObject *parent)
    : QStyledItemDelegate{parent}
{

}

//重写paint方法
void ButtonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    QStyleOptionButton buttonStyle;		//自定义按钮
    buttonStyle.text = "我是按钮";
    buttonStyle.rect = option.rect;
    buttonStyle.state = QStyle::State_Enabled;
    QPushButton button;
    button.style()->drawControl(QStyle::CE_PushButton,&buttonStyle,painter,&button);

}

bool ButtonDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index)
{
//    qDebug()<<"editorEvent: "<<
    QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);
    qDebug()<<"editorEvent: "<<mouseEvent->type();
    if(option.rect.contains(mouseEvent->pos())){
        if(mouseEvent->type() == QEvent::MouseButtonPress){
            emit clicked(index);
        }

    }
    return true;
}

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