Qt Interface style settings

• Each widget is set to style
• SetStyle (Qstyle style)
• Setting Qstyle for Qapplication is for all
• Qapplication::setstyle (Qstylefactory::create ("Fusion"));
  
• If other widgets have not been set Qstyle, the default is to use Qapplication
• Qstyle Main Overridable interface
• Drawing complex controls
• virtual void Drawcomplexcontrol (Complexcontrol control, const QSTYLEOPTIONCOMPLEX * option, qpainter * painter, const Q Widget * Widget = 0) Const = 0
• Drawing general Controls
• virtual void Drawcontrol (controlelement element, const qstyleoption * option, qpainter * painter, const qwidget * Widge t = 0) Const = 0
• Draw the most basic controls (small arrows or something)
• virtual void DrawPrimitive (primitiveelement element, const qstyleoption * option, qpainter * painter, const qwidget * W Idget = 0) Const = 0
• All of these interfaces have similar parameters
• The first is the enumeration value defined in the Qstyle class, with a specific reference to the QT document that represents the type of control you want to modify
• A few of the following are the name.
• Get the original Qstyle supported by the current platform
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• You can also customize the style for each widget
• Qwidget::setstyle ()
  
• Modify the display effect of a custom widget
• Qwidget has a style () interface to get the current Qstyle
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• Custom Qstyle
• Can rewrite existing Qstyle slightly modified under
• can also inherit one, generally inherit from Qproxystyle, or Qcommonstyle.
• Make a custom style plug-in for other people to use
• The use of Qt style sheet QSS
• Using the. qss file
• If a QT style sheet is activated, it encapsulates the style of the widget
• This is a CSS-like thing
• Child widgets are also modified
• You can apply a style to the entire app, and then assign a style to a control
• This is a top-priority style configuration that overrides Qstyle, or packaging Qstyle
• The difference between Qstyle and QSS
• Qstyle is able to rewrite the drawing controls, you can re-set the brush to draw lines, and of course you can just set the background color. For example, the checkbox, which turns out to be a hook, is now turned into a dark
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• QSS change the relative surface point, modify the background color background image or something
• One change the bone, one skin.
• Style sheet can be changed in Qtdesigner

From for notes (Wiz)

Qt Interface style settings