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These classes provide support for graphics (2D, and with OpenGL, 3D), image encoding, decoding, and manipulation, sound, animation, printing etc.
See also this introduction to the Qt coordinate system.
QAbstractGraphicsShapeItem | The QAbstractGraphicsShapeItem class provides a common base for all path items. |
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QBitmap | The QBitmap class provides monochrome (1-bit depth) pixmaps. |
QBrush | The QBrush class defines the fill pattern of shapes drawn by QPainter. |
QColor | The QColor class provides colors based on RGB, HSV or CMYK values. |
QColorDialog | The QColorDialog class provides a dialog widget for specifying colors. |
QColormap | The QColormap class maps device independent QColors to device dependent pixel values. |
QConicalGradient | The QConicalGradient class is used in combination with QBrush to specify a conical gradient brush. |
QDirectPainter | The QDirectPainter class provides direct access to the underlying hardware in Qtopia Core. |
QFont | The QFont class specifies a font used for drawing text. |
QFontDatabase | The QFontDatabase class provides information about the fonts available in the underlying window system. |
QFontInfo | The QFontInfo class provides general information about fonts. |
QFontMetrics | The QFontMetrics class provides font metrics information. |
QFontMetricsF | The QFontMetricsF class provides font metrics information. |
QGL | The QGL namespace specifies miscellaneous identifiers used in the Qt OpenGL module. |
QGLColormap | The QGLColormap class is used for installing custom colormaps into QGLWidgets. |
QGLContext | The QGLContext class encapsulates an OpenGL rendering context. |
QGLFormat | The QGLFormat class specifies the display format of an OpenGL rendering context. |
QGLFramebufferObject | The QGLFramebufferObject class encapsulates an OpenGL framebuffer object. |
QGLPixelBuffer | The QGLPixelBuffer class encapsulates an OpenGL pbuffer. |
QGLWidget | The QGLWidget class is a widget for rendering OpenGL graphics. |
QGradient | The QGradient class is used in combination with QBrush to specify gradient fills. |
QGraphicsEllipseItem | The QGraphicsEllipseItem class provides an ellipse item that you can add to a QGraphicsScene. |
QGraphicsItem | The QGraphicsItem class is the base class for all graphical items in a QGraphicsScene. |
QGraphicsItemAnimation | The QGraphicsItemAnimation class provides simple animation support for QGraphicsItem. |
QGraphicsItemGroup | The QGraphicsItemGroup class provides treating a group of items as one. |
QGraphicsLineItem | The QGraphicsLineItem class provides a line item that you can add to a QGraphicsScene. |
QGraphicsPathItem | The QGraphicsPathItem class provides a path item that you can add to a QGraphicsScene. |
QGraphicsPixmapItem | The QGraphicsPixmapItem class provides a pixmap item that you can add to a QGraphicsScene. |
QGraphicsPolygonItem | The QGraphicsPolygonItem class provides a polygon item that you can add to a QGraphicsScene. |
QGraphicsRectItem | The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene. |
QGraphicsScene | The QGraphicsScene class provides a surface for managing a large number of 2D graphical items. |
QGraphicsSceneContextMenuEvent | The QGraphicsSceneContextMenuEvent class provides context menu events in the graphics view framework. |
QGraphicsSceneDragDropEvent | The QGraphicsSceneDragDropEvent class provides events for drag and drop in the graphics view framework. |
QGraphicsSceneEvent | The QGraphicsSceneEvent class provides a base class for all graphics view related events. |
QGraphicsSceneHelpEvent | The QGraphicsSceneHelpEvent class provides events when a tooltip is requested. |
QGraphicsSceneHoverEvent | The QGraphicsSceneHoverEvent class provides hover events in the graphics view framework. |
QGraphicsSceneMouseEvent | The QGraphicsSceneMouseEvent class provides mouse events in the graphics view framework. |
QGraphicsSceneWheelEvent | The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework. |
QGraphicsSimpleTextItem | The QGraphicsSimpleTextItem class provides a simple text path item that you can add to a QGraphicsScene. |
QGraphicsSvgItem | The QGraphicsSvgItem class is a QGraphicsItem that can be used to render the contents of SVG files. |
QGraphicsTextItem | The QGraphicsTextItem class provides a text item that you can add to a QGraphicsScene to display formatted text. |
QGraphicsView | The QGraphicsView class provides a widget for displaying the contents of a QGraphicsScene. |
QIcon | The QIcon class provides scalable icons in different modes and states. |
QIconEngine | The QIconEngine class provides an abstract base class for QIcon renderers. |
QIconEngineV2 | The QIconEngineV2 class provides an abstract base class for QIcon renderers. |
QImage | The QImage class provides a hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device. |
QImageReader | The QImageReader class provides a format independent interface for reading images from files or other devices. |
QImageWriter | The QImageWriter class provides a format independent interface for writing images to files or other devices. |
QLine | The QLine class provides a two-dimensional vector using integer precision. |
QLineF | The QLineF class provides a two-dimensional vector using floating point precision. |
QLinearGradient | The QLinearGradient class is used in combination with QBrush to specify a linear gradient brush. |
QMatrix | The QMatrix class specifies 2D transformations of a coordinate system. |
QMovie | The QMovie class is a convenience class for playing movies with QImageReader. |
QPaintDevice | The QPaintDevice class is the base class of objects that can be painted. |
QPaintEngine | The QPaintEngine class provides an abstract definition of how QPainter draws to a given device on a given platform. |
QPainter | The QPainter class performs low-level painting on widgets and other paint devices. |
QPainterPath | The QPainterPath class provides a container for painting operations, enabling graphical shapes to be constructed and reused. |
QPainterPathStroker | The QPainterPathStroker class is used to generate fillable outlines for a given painter path. |
QPalette | The QPalette class contains color groups for each widget state. |
QPen | The QPen class defines how a QPainter should draw lines and outlines of shapes. |
QPicture | The QPicture class is a paint device that records and replays QPainter commands. |
QPictureIO | The QPictureIO class contains parameters for loading and saving pictures. |
QPixmap | The QPixmap class is an off-screen image representation that can be used as a paint device. |
QPixmapCache | The QPixmapCache class provides an application-wide cache for pixmaps. |
QPoint | The QPoint class defines a point in the plane using integer precision. |
QPointF | The QPointF class defines a point in the plane using floating point precision. |
QPolygon | The QPolygon class provides a vector of points using integer precision. |
QPolygonF | The QPolygonF class provides a vector of points using floating point precision. |
QPrintEngine | The QPrintEngine class defines an interface for how QPrinter interacts with a given printing subsystem. |
QPrinter | The QPrinter class is a paint device that paints on a printer. |
QRadialGradient | The QRadialGradient class is used in combination with QBrush to specify a radial gradient brush. |
QRect | The QRect class defines a rectangle in the plane using integer precision. |
QRectF | The QRectF class defines a rectangle in the plane using floating point precision. |
QRegion | The QRegion class specifies a clip region for a painter. |
QSize | The QSize class defines the size of a two-dimensional object using integer point precision. |
QSizeF | The QSizeF class defines the size of a two-dimensional object using floating point precision. |
QSound | The QSound class provides access to the platform audio facilities. |
QStyleOptionGraphicsItem | The QStyleOptionGraphicsItem class is used to describe the parameters needed to draw a QGraphicsItem. |
QStylePainter | The QStylePainter class is a convenience class for drawing QStyle elements inside a widget. |
QSvgGenerator | The QSvgGenerator class provides a paint device that is used to create SVG drawings. |
QSvgRenderer | The QSvgRenderer class is used to draw the contents of SVG files onto paint devices. |
QSvgWidget | The QSvgWidget class provides a widget that is used to display the contents of Scalable Vector Graphics (SVG) files. |
QTimeLine | The QTimeLine class provides a timeline for controlling animations. |
QTransform | The QTransform class specifies 2D transformations of a coordinate system. |
Copyright © 2007 Trolltech | Trademarks | Qt 4.3.0beta |