Qt的QTabWidget样式设置

QTabWidget 是 Qt 框架中用于创建选项卡式界面的控件。可以通过样式表（QSS，Qt Style Sheets）来设置 QTabWidget 的外观。以下是一些常见的样式设置示例：

1. 基本样式设置 tab_widget.setStyleSheet(""" QTabWidget::pane { border: 1px solid #ccc; background-color: #f0f0f0; } QTabBar::tab { background: #ddd; border: 1px solid #ccc; padding: 10px; font-size: 14px; } QTabBar::tab:selected { background: #f0f0f0; border-bottom-color: #f0f0f0; } QTabBar::tab:hover { background: #eee; } """) 2. 设置选项卡的宽度和高度 tab_widget.setStyleSheet(""" QTabBar::tab { width: 100px; height: 30px; } """) 3. 设置选项卡的圆角 tab_widget.setStyleSheet(""" QTabBar::tab { border-top-left-radius: 5px; border-top-right-radius: 5px; } """) 4. 设置选项卡的背景颜色和字体颜色 tab_widget.setStyleSheet(""" QTabBar::tab { background: #555; color: white; } QTabBar::tab:selected { background: #777; color: yellow; } """) 5. 设置选项卡的图标和文本对齐方式 tab_widget.setStyleSheet(""" QTabBar::tab { padding-left: 20px; /* 图标和文本之间的间距 */ text-align: left; /* 文本左对齐 */ } """) 6. 设置选项卡的关闭按钮 tab_widget.setStyleSheet(""" QTabBar::close-button { image: url(close.png); /* 关闭按钮的图标 */ subcontrol-position: right; /* 关闭按钮的位置 */ } QTabBar::close-button:hover { background: #f00; /* 鼠标悬停时的背景颜色 */ } """) 7. 设置选项卡的边框和间距 tab_widget.setStyleSheet(""" QTabWidget::pane { border: 2px solid #ccc; margin: 0px; padding: 0px; } QTabBar::tab { margin: 0px; padding: 5px; } """) 8. 设置选项卡的渐变背景 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); } """) 9. 设置选项卡的阴影效果 tab_widget.setStyleSheet(""" QTabBar::tab { border: 1px solid #ccc; border-bottom-color: #f0f0f0; /* 底部边框颜色 */ margin-right: 2px; /* 选项卡之间的间距 */ box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); /* 阴影效果 */ } """) 10. 设置选项卡的字体 tab_widget.setStyleSheet(""" QTabBar::tab { font-family: Arial; font-size: 12px; font-weight: bold; } """) 11. 设置选项卡的图标 tab_widget.setStyleSheet(""" QTabBar::tab { icon-size: 24px; /* 图标大小 */ } """) 12. 设置选项卡的悬停效果 tab_widget.setStyleSheet(""" QTabBar::tab:hover { background: #eee; color: #000; } """) 13. 设置选项卡的禁用状态 tab_widget.setStyleSheet(""" QTabBar::tab:disabled { background: #ccc; color: #888; } """) 14. 设置选项卡的选中状态 tab_widget.setStyleSheet(""" QTabBar::tab:selected { background: #f0f0f0; border-bottom-color: #f0f0f0; } """) 15. 设置选项卡的底部边框 tab_widget.setStyleSheet(""" QTabBar::tab { border-bottom: 2px solid #ccc; } QTabBar::tab:selected { border-bottom: 2px solid #f00; } """) 16. 设置选项卡的顶部边框 tab_widget.setStyleSheet(""" QTabBar::tab { border-top: 2px solid #ccc; } QTabBar::tab:selected { border-top: 2px solid #f00; } """) 17. 设置选项卡的左右边框 tab_widget.setStyleSheet(""" QTabBar::tab { border-left: 2px solid #ccc; border-right: 2px solid #ccc; } QTabBar::tab:selected { border-left: 2px solid #f00; border-right: 2px solid #f00; } """) 18. 设置选项卡的背景图片 tab_widget.setStyleSheet(""" QTabBar::tab { background-image: url(tab_bg.png); } QTabBar::tab:selected { background-image: url(tab_bg_selected.png); } """) 19. 设置选项卡的渐变边框 tab_widget.setStyleSheet(""" QTabBar::tab { border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); } QTabBar::tab:selected { border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); } """) 20. 设置选项卡的圆角边框 tab_widget.setStyleSheet(""" QTabBar::tab { border: 1px solid #ccc; border-top-left-radius: 5px; border-top-right-radius: 5px; } QTabBar::tab:selected { border: 1px solid #f00; border-top-left-radius: 5px; border-top-right-radius: 5px; } """) 21. 设置选项卡的阴影边框 tab_widget.setStyleSheet(""" QTabBar::tab { border: 1px solid #ccc; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } QTabBar::tab:selected { border: 1px solid #f00; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } """) 22. 设置选项卡的渐变背景和边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); } """) 23. 设置选项卡的渐变背景和圆角边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); border-top-left-radius: 5px; border-top-right-radius: 5px; } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); border-top-left-radius: 5px; border-top-right-radius: 5px; } """) 24. 设置选项卡的渐变背景和阴影边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } """) 25. 设置选项卡的渐变背景和圆角阴影边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); border-top-left-radius: 5px; border-top-right-radius: 5px; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); border-top-left-radius: 5px; border-top-right-radius: 5px; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } """) 26. 设置选项卡的渐变背景和圆角阴影边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); border-top-left-radius: 5px; border-top-right-radius: 5px; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); border-top-left-radius: 5px; border-top-right-radius: 5px; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } """) 27. 设置选项卡的渐变背景和圆角阴影边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ccc, stop: 1 #999); border-top-left-radius: 5px; border-top-right-radius: 5px; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } QTabBar::tab:selected { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #fafafa, stop: 1 #f0f0f0); border: 1px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #f00, stop: 1 #c00); border-top-left-radius: 5px; border-top-right-radius: 5px; box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1); } """) 28. 设置选项卡的渐变背景和圆角阴影边框 tab_widget.setStyleSheet(""" QTabBar::tab { background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #E1E1E1, stop: 0.4 #DDDDDD, stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3); border: 1px solid qlineargradient(x1