drug_sensitivity_reaction/yaomin.h

#ifndef YAOMIN_H
#define YAOMIN_H

#include <QWidget>
#include <QtSql/QSql>
#include <QtSql/QSqlDatabase>
#include <QtSql/QSqlQueryModel>
#include <QtSql/QSqlError>
#include <QSqlQuery>
#include <QSqlTableModel>
#include <QItemSelection>
#include <QDataWidgetMapper>
#include<QSqlRecord>
#include <QDebug>
#include "addyaomin.h"
#include "maxtu.h"
#include <QStyledItemDelegate>
#include <QPainter>
#include <QStyleOptionButton>
#include <QApplication>
#include <QStyledItemDelegate>
#include <QPushButton>
#include <QPainter>
#include <QApplication>
#include <QMouseEvent>
#include <QModelIndex>
#include <QFontMetrics>
#include<date.h>
#include<datee.h>
class CenteredItemDelegate3 : public QStyledItemDelegate {
public:
    QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override {
        QWidget* editor = QStyledItemDelegate::createEditor(parent, option, index);
        if (editor) {
            editor->setStyleSheet("text-align: center;");
        }
        return editor;
    }


    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override {
        QStyleOptionViewItem opt = option;
        opt.displayAlignment = Qt::AlignHCenter | Qt::AlignVCenter;
        QStyledItemDelegate::paint(painter, opt, index);
    }
};
class ButtonDelegate2 : public QStyledItemDelegate
{
    Q_OBJECT
signals:
    void editButtonClicked(const QModelIndex& index) const;
    void deleteButtonClicked(const QModelIndex& index) const;
public:
    using QStyledItemDelegate::QStyledItemDelegate;

    // 创建编辑器，这里我们不需要编辑器，返回nullptr
    QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override
    {
        return nullptr;
    }

    // 重绘函数，用于绘制按钮
    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override
    {
        if (index.column() == 7)  // 判断是否为第五列
        {
            // 绘制编辑按钮
            // QStyleOptionButton editButtonOption;
            // editButtonOption.rect = option.rect;
            // editButtonOption.rect.setWidth(editButtonOption.rect.width() * 0.4);
            // editButtonOption.text = "编辑";
            // editButtonOption.state = QStyle::State_Enabled;
            // editButtonOption.features |= QStyleOptionButton::Flat; // 设置为扁平样式，去除边框
            // QApplication::style()->drawControl(QStyle::CE_PushButton, &editButtonOption, painter);

            // 绘制删除按钮
            QStyleOptionButton deleteButtonOption;
            deleteButtonOption.rect = option.rect;
            // deleteButtonOption.rect = option.rect;
            // deleteButtonOption.rect.setX(deleteButtonOption.rect.x() + deleteButtonOption.rect.width() * 0.4);
            // deleteButtonOption.rect.setWidth(deleteButtonOption.rect.width() * 0.6);
            deleteButtonOption.text = "删除";
            deleteButtonOption.state = QStyle::State_Enabled;
            deleteButtonOption.features |= QStyleOptionButton::Flat; // 设置为扁平样式，去除边框
            // QFontMetrics metrics(painter->font());
            // int textWidth = metrics.horizontalAdvance(deleteButtonOption.text );

            // // 增加一定的间距值（这里设为5像素，可根据实际效果调整）
            // const int padding = 5;
            // textWidth += 2 * padding;

            // // 调整按钮矩形的位置，使其居左显示，同时考虑间距来设置宽度
            // deleteButtonOption.rect.setX(option.rect.x() + padding);
            // deleteButtonOption.rect.setWidth(textWidth);
            // 创建一个调色板对象
            QPalette buttonPalette = QApplication::style()->standardPalette();
            // 设置文本颜色为红色
            buttonPalette.setColor(QPalette::ButtonText, Qt::red);
            // 将调色板应用到按钮样式选项中
            deleteButtonOption.palette = buttonPalette;
            QApplication::style()->drawControl(QStyle::CE_PushButton, &deleteButtonOption, painter);
        }
        else
        {
            QStyledItemDelegate::paint(painter, option, index);
        }
    }

    // 处理鼠标事件，判断按钮点击
    bool editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index)
    {
        if (index.column() == 7 && event->type() == QEvent::MouseButtonPress)
        {
            QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);
            // 判断是否点击编辑按钮区域
            // QRect editRect = option.rect;
            // editRect.setWidth(editRect.width() * 0.4);
            // if (editRect.contains(mouseEvent->pos()))
            // {
            //     emit editButtonClicked(index);
            //     return true;
            // }

            // 判断是否点击删除按钮区域
            // QRect deleteRect = option.rect;
            // deleteRect.setX(deleteRect.x() + deleteRect.width() * 0.4);
            // deleteRect.setWidth(deleteRect.width() * 0.6);
            // if (deleteRect.contains(mouseEvent->pos()))
            // {
            //     emit deleteButtonClicked(index);
            //     return true;
            // }
            QRect cellRect = option.rect;  // 使用更表意清晰的变量名表示单元格矩形区域
            if (cellRect.contains(mouseEvent->pos()))
            {
                emit deleteButtonClicked(index);
                return true;
            }
        }
        return QStyledItemDelegate::editorEvent(event, model, option, index);
    }


};
class ClickToViewDelegateee : public QStyledItemDelegate
{
public:
    using QStyledItemDelegate::QStyledItemDelegate;

    QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override
    {
        // 不允许编辑，返回nullptr
        return nullptr;
    }

    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override
    {
        if (index.column() ==4) // 第三列，列索引从0开始计数
        {
            QString text = "点击查看";
            QStyleOptionButton buttonOption;
            buttonOption.rect = option.rect;
            buttonOption.text = text;
            buttonOption.state = QStyle::State_Enabled;
            buttonOption.features |= QStyleOptionButton::Flat; // 设置为扁平样式，去除边框
            // 使用horizontalAdvance函数获取文本宽度

            // 创建一个调色板对象
            QPalette buttonPalette2 = QApplication::style()->standardPalette();

            buttonPalette2.setColor(QPalette::ButtonText, QColor(0, 170, 255));
            // 将调色板应用到按钮样式选项中
            buttonOption.palette = buttonPalette2;

            QApplication::style()->drawControl(QStyle::CE_PushButton, &buttonOption, painter);
        }
        else
        {
            QStyledItemDelegate::paint(painter, option, index);
        }
    }
};
namespace Ui {
class yaomin;
}

class yaomin : public QWidget
{
    Q_OBJECT

public:
    explicit yaomin(QWidget *parent = nullptr);
    ~yaomin();
private slots:
//    void on_pushButton_clicked();

    void on_pushButton_2_clicked();

    void on_pushButton_3_clicked();

    // void on_pushButton_5_clicked();

    // void on_pushButton_6_clicked();

    void on_pushButton_4_clicked();


    void on_currentChanged(const QModelIndex &current, const QModelIndex &previous);
       void shanchu(const QModelIndex& index);
    void  onCellClicked(const QModelIndex &index);

       void on_pushButton_5_clicked();

    void on_pushButton_6_clicked();
       void getkaishi(QString str);
       void getkaishii(QString str);

private:
    date *m_date;
    datee *m_datee;
    void getshui();
    QWidget mask_window;

ButtonDelegate2* delegate2 = new ButtonDelegate2;
    QSqlTableModel* model;
      QItemSelectionModel *theSelection; //选择模型
       QDataWidgetMapper   *dataMapper; //数据映射

    void shuaxin();
addyaomin *m_addyaomin;
   maxtu *m_maxtu;
   ClickToViewDelegateee delegate;

 //QWidget mask_window;
private:
    Ui::yaomin *ui;
signals:
    void yuan(QPixmap p);
};

#endif // YAOMIN_H