QT在QTableView的一列里添加两个按钮

#include "buttondelegate.h" #include <QApplication> #include <QMouseEvent> #include <QMessageBox> #include <QPainter> #include <QStyleOption> #include <QDesktopWidget> ButtonDelegate::ButtonDelegate(QObject *parent) : QItemDelegate(parent) { } void ButtonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { QPair<QStyleOptionButton*, QStyleOptionButton*>* buttons = m_btns.value(index); if (!buttons) { QStyleOptionButton* button1 = new QStyleOptionButton(); //button1->rect = option.rect.adjusted(4, 4, -(option.rect.width() / 2 + 4) , -4); // button1->text = "X"; button1->state |= QStyle::State_Enabled; QStyleOptionButton* button2 = new QStyleOptionButton(); //button2->rect = option.rect.adjusted(button1->rect.width() + 4, 4, -4, -4); button2->text = "Y"; button2->state |= QStyle::State_Enabled; buttons =new QPair<QStyleOptionButton*, QStyleOptionButton*>(button1, button2); (const_cast<ButtonDelegate *>(this))->m_btns.insert(index, buttons); } buttons->first->rect = option.rect.adjusted(4, 4, -(option.rect.width() / 2 + 4) , -4); // buttons->second->rect = option.rect.adjusted(buttons->first->rect.width() + 4, 4, -4, -4); painter->save(); if (option.state & QStyle::State_Selected) { painter->fillRect(option.rect, option.palette.highlight()); } painter->restore(); QApplication::style()->drawControl(QStyle::CE_PushButton, buttons->first, painter); QApplication::style()->drawControl(QStyle::CE_PushButton, buttons->second, painter); } bool ButtonDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) { if (event->type() == QEvent::MouseButtonPress) { QMouseEvent* e =(QMouseEvent*)event; if (m_btns.contains(index)) { QPair<QStyleOptionButton*, QStyleOptionButton*>* btns = m_btns.value(index); if (btns->first->rect.contains(e->x(), e->y())) { btns->first->state |= QStyle::State_Sunken; } else if(btns->second->rect.contains(e->x(), e->y())) { btns->second->state |= QStyle::State_Sunken; } } } if (event->type() == QEvent::MouseButtonRelease) { QMouseEvent* e =(QMouseEvent*)event; if (m_btns.contains(index)) { QPair<QStyleOptionButton*, QStyleOptionButton*>* btns = m_btns.value(index); if (btns->first->rect.contains(e->x(), e->y())) { btns->first->state &= (~QStyle::State_Sunken); showMsg(tr("btn1 column %1").arg(index.column())); } else if(btns->second->rect.contains(e->x(), e->y())) { btns->second->state &= (~QStyle::State_Sunken); showMsg(tr("btn2 row %1").arg(index.row())); } } } } void ButtonDelegate::showMsg(QString str) { QMessageBox msg; msg.setText(str); msg.exec(); }