c++ - 更改 QComboBox 项目的光标形状

Question

我想为 QComboBox 和他的项目设置光标形状。 setCursor 仅影响 QComboBox 的 LineEdit 部分，如何访问项目 View 以更改光标形状？

QComboBox *combo = new QComboBox();
combo->addItem("One");
combo->addItem("Two");
combo->addItem("Three");
combo->setCursor(Qt::PointingHandCursor); // changes cursor only for LineEdit part, on popup cursor is still arrow
combo->view()->setCursor(Qt::PointingHandCursor); // does not affect popup view

我们使用 Qt 5.5.1

Answer 1

此代码有效:

combo->installEventFilter(this);
//...

bool MainWin::eventFilter(QObject *obj, QEvent *ev)
{
    if( obj == combo 
        && (ev->type() == QEvent::Enter
        || ev->type() == QEvent::HoverMove) )
    {
        combo->setCursor(Qt::PointingHandCursor);
        combo->view()->setCursor(Qt::PointingHandCursor);

        return true;
    }
    return QMainWindow::eventFilter(obj, ev);
}

参见 Qt Event Filters