QTableView插入QCheckBox复选框_qabstracttablemodel设置第一列checkbox-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_23208659/article/details/111287025

本文介绍了如何在QTableView中插入QCheckBox，通过展示效果图和提供源码，展示了具体实现过程。源码下载链接已给出。

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效果图

源码

#ifndef CCHECKBOXMODEL_H
#define CCHECKBOXMODEL_H

#include <QAbstractTableModel>
#include <QStyledItemDelegate>
#include <QEvent>
#include <QHeaderView>
#include <QPainter>


class TableHeaderView :public QHeaderView
{
   
	Q_OBJECT
public:
	TableHeaderView(Qt::Orientation orientation, QWidget *parent);
	~TableHeaderView();

protected:
	void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const;
	bool event(QEvent *e) Q_DECL_OVERRIDE;
	void mousePressEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
	void mouseReleaseEvent(QMouseEvent *e) Q_DECL_OVERRIDE;

	public slots:
	void onStateChanged(int state);

signals:
	void stateChanged(int state);

private:
	bool m_bPressed;
	bool m_bChecked;
	bool m_bTristate;
	bool m_bNoChange;
	bool m_bMoving;
};


class CheckBoxDelegate :public QStyledItemDelegate
{
   
	Q_OBJECT
public:
    CheckBoxDelegate(QObject *parent);
    ~CheckBoxDelegate();
    // painting
    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;

protected:
    bool editorEvent(QEvent *event, QAbstractItemModel *model,
                     const QStyleOptionViewItem &option, const QModelIndex &index);
};



#endif // TABLE_MODEL_H

#include "ccheckboxmodel.h"
#include <QCheckBox>
#include <QApplication>
#include <QMouseEvent>
#include <qmessagebox.h>

#ifdef _MSC_VER
#pragma execution_character_set("utf-8")
#endif

#define CHECK_BOX_COLUMN 0
TableHeaderView::TableHeaderView(Qt::Orientation orientation, QWidget *parent)
	: QHeaderView(orientation, parent),
	m_bPressed(false),
	m_bChecked(false),
	m_bTristate(false),
	m_bNoChange(false),
	m_bMoving(false)
	
{
   	
    setSectionsClickable(true); // 响应鼠标
}

TableHeaderView::~TableHeaderView()
{
   

}

// 槽函数，用于更新复选框状态
void TableHeaderView::onStateChanged(int state)
{
   
	if (state == Qt::PartiallyChecked) {
   
		m_bTristate = true;
		m_bNoChange = true;
	}
	else {
   
		m_bNoChange = false;
	}

	m_bChecked = (state != Qt::Unchecked);
	update();
}

// 绘制复选框
void TableHeaderView::paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const
{
   
	painter->save();
	QHeaderView::paintSection(