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Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Classes principales  ·  Annotées  ·  Classes groupées  ·  Modules  ·  Fonctions  · 

Painting Classes

See also this introduction to the Qt coordinate system.

QBitmap

Monochrome (1-bit depth) pixmaps

QBrush

Defines the fill pattern of shapes drawn by QPainter

QColor

Colors based on RGB, HSV or CMYK values

QColormap

Maps device independent QColors to device dependent pixel values

QConicalGradient

Used in combination with QBrush to specify a conical gradient brush

QFont

Specifies a font used for drawing text

QFontMetrics

Font metrics information

QFontMetricsF

Font metrics information

QGenericMatrix

Template class that represents a NxM transformation matrix with N columns and M rows

QGradient

Used in combination with QBrush to specify gradient fills

QIcon

Scalable icons in different modes and states

QIconEngine

Abstract base class for QIcon renderers

QImage

Hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device

QImageReader

Format independent interface for reading images from files or other devices

QImageWriter

Format independent interface for writing images to files or other devices

QLine

Two-dimensional vector using integer precision

QLineF

Two-dimensional vector using floating point precision

QLinearGradient

Used in combination with QBrush to specify a linear gradient brush

QMargins

Defines the four margins of a rectangle

QMovie

Convenience class for playing movies with QImageReader

QPagedPaintDevice

Represents a paintdevice that supports multiple pages

QPaintDevice

The base class of objects that can be painted

QPaintEngine

Abstract definition of how QPainter draws to a given device on a given platform

QPainter

Performs low-level painting on widgets and other paint devices

QPainterPath

Container for painting operations, enabling graphical shapes to be constructed and reused

QPainterPathStroker

Used to generate fillable outlines for a given painter path

QPalette

Contains color groups for each widget state

QPdfWriter

Class to generate PDFs that can be used as a paint device

QPen

Defines how a QPainter should draw lines and outlines of shapes

QPicture

Paint device that records and replays QPainter commands

QPixmap

Off-screen image representation that can be used as a paint device

QPixmapCache

Application-wide cache for pixmaps

QPoint

Defines a point in the plane using integer precision

QPointF

Defines a point in the plane using floating point precision

QPolygon

Vector of points using integer precision

QPolygonF

Vector of points using floating point precision

QRadialGradient

Used in combination with QBrush to specify a radial gradient brush

QRect

Defines a rectangle in the plane using integer precision

QRectF

Defines a rectangle in the plane using floating point precision

QRegion

Specifies a clip region for a painter

QSize

Defines the size of a two-dimensional object using integer point precision

QSizeF

Defines the size of a two-dimensional object using floating point precision

QStylePainter

Convenience class for drawing QStyle elements inside a widget

QSupportedWritingSystems

Used when registering fonts with the internal Qt fontdatabase

QSvgGenerator

Paint device that is used to create SVG drawings

QSvgRenderer

Used to draw the contents of SVG files onto paint devices

QSvgWidget

Widget that is used to display the contents of Scalable Vector Graphics (SVG) files

QTransform

Specifies 2D transformations of a coordinate system

QVector2D

Represents a vector or vertex in 2D space

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