Qt TableView之自定义代理按键

自定义代理按键"/>

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。

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 <QStyledItemDelegate>
#include <QObject>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 <QPushButton>
#include <QMouseEvent>
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;
}