方法一:代理
新建一个代理类,重写paint函数:
class CommonDelegate : public QStyledItemDelegate
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
CommonDelegate::CommonDelegate()
void CommonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
QStyleOptionViewItem itemOption(option);
if(itemOption.state&QStyle::State_HasFocus)
itemOption.state=itemOption.state^QStyle::State_HasFocus;
if(QString("结案")==index.data().toString())
pix.load(":/Resources/check.png");
else if(QString("激活")==index.data().toString())
pix.load(":/Resources/active.png");
rect.setSize(QSize(20,20));
pix.scaled(20,20,Qt::KeepAspectRatio);
painter->setRenderHints(QPainter::Antialiasing|QPainter::SmoothPixmapTransform);
painter->drawPixmap(rect,pix);
QStyledItemDelegate::paint(painter,itemOption,index);
TableView设置:
this->setItemDelegate(new CommonDelegate());
效果:
图标和文字重叠,且点击后看不到图标,这不是我想要的效果。
方法二:重写Model
继承QSqlQueryModel(一般使用QSqlTableModel即可),重写data函数:
class SqlTableModel : public QSqlQueryModel
explicit SqlTableModel(QObject *parent=0);
QVariant data(const QModelIndex &idx, int role) const;
QVariant SqlTableModel::data(const QModelIndex &idx, int role) const
QVariant value=QSqlQueryModel::data(idx,role);
if(3==idx.column()&&Qt::DecorationRole==role)
QString PNType=idx.data().toString();
if(QString("结案")==PNType)
return QIcon(":/Resources/check.png");
else if(QString("激活")==PNType)
return QIcon(":/Resources/active.png");
效果:
部分效果需要使用QSS:
font-family:"Microsoft Yahei";
selection-background-color: rgb(255,209,128);
border-top: 1px solid lightgray;
更多QSS使用方法,在Qt助手中搜索stylesheet,在Qt Style Sheets Examples 中查看。
原文地址:http://voidcat.cn/index.php/2019/03/29/qtableview-icon/