除非元素悬停，否则复选框中的选中符号不可见

Question

在Qt应用程序中，我有一个按钮，稍后我会在其中添加一些菜单。菜单的每个元素都是可检查的QAction。有趣的是，一旦元素被检查，检查符号就不可见，除非你用鼠标悬停它。这是一个截图：

我有一些自定义QCSS集，但是，我从未为QMainWindow, QDialog { background: #E8E8E8; color: #2e2e2e; } QMenuBar, QStatusBar { background: #545454; color: #fff; } QLabel#lblBanner { background: qlineargradient(x1: 0, y1: 0.01, x2: 0, y2: 1, stop: 0 #545454, stop: 1 #141414); margin: 0; } QMenu { background: #E8E8E8; } QMenuBar::item { background: transparent; } QMenuBar::item:selected { background: #444442; border: 0; } QMenuBar::item:pressed { background: #444442; } QMenu::item:selected { background: #cfcfcf; } QGroupBox { background: #fff; /* border: 1px solid white; */ border-radius: 5px; margin: 3px 3px 3px 3px; padding: 18px 5px 10px 5px; font-weight: bold; } QGroupBox::title { subcontrol-origin: margin; subcontrol-position: top left; color: black; font-style: bold; /* padding: 4px 5px; */ margin-left: 6px; margin-top: 7px; background: transparent; color: #2e2e2e; } QPushButton, QDialogButtonBox { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f5f5f5, stop: 1 #cfcfcf); border-radius: 3px; padding: 5px 10px; margin: 1px; min-width: 30px ; } QPushButton:hover, QDialogButtonBox:hover { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #cfcfcf, stop: 1 #b5b5b5); } QPushButton:pressed, QDialogButtonBox:pressed { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #b5b5b5, stop: 1 #cfcfcf); } QPushButton:default, QDialogButtonBox:default { border: 1px solid; border-color: orange; /* make the default button prominent */ } QPushButton[enabled=false] { background: #ededed; color: #cfcfcf; } QLineEdit, QTextEdit { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 0.3, stop: 0 #f2f2f2, stop: 1 white); border: 2px solid #E8E8E8; selection-background-color: orange; border-radius: 5px; padding: 3px; } QHeaderView::section { background-color: qlineargradient(x1: 0, y1: 0.01, x2: 0, y2: 1, stop: 0 #545454, stop: 1 #141414); color: white; padding-left: 10px; border: 1px solid #6c6c6c; } QTreeWidget { border: 2px solid #E8E8E8; border-radius: 5px; selection-background-color: orange; show-decoration-selected: 1; } /* QTreeWidget::item:selected { */ /* background: ; */ /* } */ QTreeWidget::item:selected:!active { background: #e59500; } QTreeWidget::item:selected:active { background: #f29d00; } QTreeWidget::item:hover { background: orange; } QTreeWidget::branch { background: white; } /* barra de desplazamiento */ /* Vertical */ QScrollBar:vertical { background: #fff; width: 10px; } QScrollBar::handle:vertical { background: #E8E8E8; } /* Horizontal */ QScrollBar:horizontal { background: #fff; height: 10px; } QScrollBar::handle:horizontal { background: #E8E8E8; } /* Fin de la barra de desplazamiento */ QProgressBar { border: 2px solid orange; border-radius: 5px; background: #fff; text-align: center; } QProgressBar::chunk { background: orange; margin: 2px; border-radius: 5px; } 或其他任何内容添加任何样式，这里是：

sprintf(array,"%f\0",floatvar); 

可能是什么问题以及我可以通过哪种方式解决这个问题？

Answer 1

尝试这样的事情：

QMenu::indicator:checked
{
    image: url(:/icons/checkbox_checked);
}

有时指定某些 QSS元素会拒绝依赖操作系统默认值，您必须自己指定所有内容。