What are Qt style sheets?
Qt Style Sheets support various properties, pseudo-states, and subcontrols that make it possible to customize the look of widgets. List of Stylable Widgets The following table lists the Qt widgets that can be customized using style sheets:
How do I create a qfontmetrics object?
There are three ways you can create a QFontMetrics object: Calling the QFontMetrics constructor with a QFont creates a font metrics object for a screen-compatible font, i.e. the font cannot be a printer font. If the font is changed later, the font metrics object is not updated. (Note: If you use a printer font the values returned may be inaccurate.
How to make a field mandatory using Qt style?
To indicate to the user that the field is mandatory, one effective (albeit esthetically dubious) solution is to use yellow as the background color for those fields. It turns out this is very easy to implement using Qt Style Sheets.
How do I set a mandatoryfield in a Qt widget?
First, we would use the following application-wide style sheet: This means that every widget whose mandatoryField Qt property is set to true would have a yellow background. Then, for each mandatory field widget, we would simply create a mandatoryField property on the fly and set it to true.
Which class should I use as a base for qstyle?
Your choice of QStyle class will depend on which style resembles your desired style the most. The most general class that you can use as a base is QCommonStyle (not QStyle). This is because Qt requires its styles to be QCommonStyles.
How to create custom styles in Qt using qproxystyle?
The dynamic approach is described in QProxyStyle. The first step in the static approach is to pick one of the styles provided by Qt from which you will build your custom style. Your choice of QStyle class will depend on which style resembles your desired style the most.
How do I change the style of a Qt widget?
If no style is specified, Qt will choose the most appropriate style for the user’s platform or desktop environment. A style can also be set on an individual widget using the QWidget::setStyle() function.