将自定义样式添加到 QTableview 中添加的按钮

Adding custom style to button added in QTableview

本文关键字:添加 按钮 QTableview 自定义 样式      更新时间:2023-10-16

我使用QTableviewQAbstractTableModel创建了一个表。在最后一列中,我还能够为每一行(该单元格的右上角(添加一个按钮。现在我想自定义它的样式,比如将背景颜色更改为黑色、边框等。

有什么办法可以做到这一点吗?

delegate.h:

class MyDelegate : public QItemDelegate {
Q_OBJECT
public:
MyDelegate(QObject *parent = 0);
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
bool editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index); };

代表.cpp:

#include <QtGui>  #include "delegate.h"
MyDelegate::MyDelegate(QObject *parent)
: QItemDelegate(parent)  {  }

void MyDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const  {
QStyleOptionButton button;
QRect r = option.rect;//getting the rect of the cell
int x,y,w,h;
x = r.left() + r.width() - 30;//the X coordinate
y = r.top();//the Y coordinate
w = 30;//button width
h = 30;//button height
button.rect = QRect(x,y,w,h);
button.text = "=^.^=";
button.state = QStyle::State_Enabled;
QApplication::style()->drawControl( QStyle::CE_PushButton, &button, painter);  }
bool MyDelegate::editorEvent(QEvent *event, QAbstractItemModel
*model, const QStyleOptionViewItem &option, const QModelIndex &index)  {
if( event->type() == QEvent::MouseButtonRelease )
{
QMouseEvent * e = (QMouseEvent *)event;
int clickX = e->x();
int clickY = e->y();
QRect r = option.rect;//getting the rect of the cell
int x,y,w,h;
x = r.left() + r.width() - 30;//the X coordinate
y = r.top();//the Y coordinate
w = 30;//button width
h = 30;//button height
if( clickX > x && clickX < x + w )
if( clickY > y && clickY < y + h )
{
QDialog * d = new QDialog();
d->setGeometry(0,0,100,100);
d->show();
}
}  }

主.cpp

#include "delegate.h"
int main(int argc, char *argv[]) {
QApplication app(argc, argv);
QStandardItemModel model(4, 2);
QTableView tableView;
tableView.setModel(&model);
MyDelegate delegate;
tableView.setItemDelegate(&delegate);
tableView.horizontalHeader()->setStretchLastSection(true);
tableView.show();
return app.exec(); }

IMO 最好的方法是使用样式表。 http://doc.qt.io/qt-5/stylesheet-syntax.html http://doc.qt.io/qt-5/stylesheet-reference.html

qApp->setStylSheet("QTableview QPushButton {" // apply only on push buttons inside a table view
"    background-color: red;"
"    border-style: outset;"
"    border-width: 2px;"
"    border-color: beige;"
"}");