转载：Styling QProgressBar and QScrollBar

Qt的进度条里的trunk（进度块）指的是用来填充已完成进度的小块。比如这個进度条里有1个trunk：

而这個进度条里有6个trunk：

http://labs.qt.nokia.com/2007/06/12/styling-qprogressbar-and-qscrollbar/

亮点：

QProgressBar

QProgressBar:horizontal {
border: 1px solid gray;
border-radius: 3px;
background: white;
padding: 1px;
}
QProgressBar::chunk:horizontal {
background: qlineargradient(x1: 0, y1: 0.5, x2: 1, y2: 0.5, stop: 0 green, stop: 1 white);
}

You say “Oh sweet, but I want WindowsXP like progress bars. And the label needs to be outside since its easier to read”. Yeah, sure.

QProgressBar:horizontal {
border: 1px solid gray;
border-radius: 3px;
background: white;
padding: 1px;
text-align: right;
margin-right: 4ex;
}
QProgressBar::chunk:horizontal {
background: qlineargradient(x1: 0, y1: 0.5, x2: 1, y2: 0.5, stop: 0 green, stop: 1 white);
margin-right: 2px; /* space */
width: 10px;
}