QTableView中添加按键或者其他控件
一、基于继承 QStyledItemDelegate 代理添加按键
可以设置table view中按键的样式表
http://blog.csdn.net/liang19890820/article/details/50974059
二、基于继承 QItemDelegate 的代理类添加按键
#include
#include
#include
#include
#include
#include
#include
#include
#include
1、创建自己的代理类
buttondelegate.h
class ButtonDelegate : public QItemDelegate
{
Q_OBJECT
public:
explicit ButtonDelegate(QObject *parent = 0);
//重写绘图事件
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
//重写事件过滤
bool editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index);
private:
QMap<QModelIndex, QStyleOptionButton*> m_btns;
};
buttondelegate.cpp
int FILE_OPERATE_COLUMN = 4;//按键所在列
ButtonDelegate::ButtonDelegate(QObject *parent) :
QItemDelegate(parent)
{}
void ButtonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
QStyleOptionButton* button = m_btns.value(index);//在特定的索引处绘制按键，这个变量临时存储绘制的按键信息
//如果为按键列绘制按键
if (index.column() == FILE_OPERATE_COLUMN) {
//非常重要！该条件最好为判断索引与需要代理的列！因为这样绘制的按键会随滑动条进行重绘！
button = new QStyleOptionButton();//绘制存button的参数的对象
button->features = QStyleOptionButton::None;//设置为pushButton类型，可以按下
button->rect = option.rect.adjusted(1, 1, -1, -1);//绘制尺寸
button->text = tr("开始检验");
button->state |= QStyle::State_Enabled;
(const_cast<ButtonDelegate *>(this))->m_btns.insert(index, button);//将绘制的按键放入Qmap
}
painter->save();
if (option.state & QStyle::State_Selected) {
painter->fillRect(option.rect, option.palette.highlight());
}
painter->restore();
QApplication::style()->drawControl(QStyle::CE_PushButton, button, painter);
}
//事件选择过滤
bool ButtonDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index)
{
if (event->type() == QEvent::MouseButtonPress) {
qDebug()<<"--------";
QMouseEvent* e =(QMouseEvent*)event;
//确定鼠标点击的位置在画的按键中
if (option.rect.adjusted(1, 1, -1, -1).contains(e->x(), e->y()) && m_btns.contains(index)) {
m_btns.value(index)->state |= QStyle::State_Sunken;
/***************/
}
}
if (event->type() == QEvent::MouseButtonRelease) {
qDebug()<<"++++++++";
QMouseEvent* e =(QMouseEvent*)event;
// if (option.rect.adjusted(1, 1, -1, -1).contains(e->x(), e->y()) && m_btns.contains(index)) {
// m_btns.value(index)->state &= (~QStyle::State_Sunken);
// QDialog *d = new QDialog();
// d->setGeometry(0, 0, 100, 100);
// d->move(QApplication::desktop()->screenGeometry().center() - d->rect().center());
// d->show();
// }
}
}
2、调用自己的类
//设置代理
m_buttonDelegate = new ButtonDelegate(this);
ui->tableView->setItemDelegateForColumn(FILE_OPERATE_COLUMN , m_buttonDelegate);
三、效果图：
