Qt3Support Module

The Qt3Support module provides classes that ease porting from Qt 3 to Qt 4. More...

Classes

Q3Frame
Q3Accel	Handles keyboard accelerator and shortcut keys
Q3Action	Abstract user interface action that can appear both in menus and tool bars
Q3ActionGroup	Groups actions together
Q3AsciiCache	Template class that provides a cache based on char* keys
Q3AsciiCacheIterator	Iterator for Q3AsciiCache collections
Q3AsciiDict	Template class that provides a dictionary based on char* keys
Q3AsciiDictIterator	Iterator for Q3AsciiDict collections
Q3Button	Compatibility base class of button widgets
Q3ButtonGroup	Organizes QAbstractButton widgets in a group
Q3CString	Abstraction of the classic C zero-terminated char array (char *)
Q3Cache	Template class that provides a cache based on QString keys
Q3CacheIterator	Iterator for Q3Cache collections
Q3Canvas	2D area that can contain Q3CanvasItem objects
Q3CanvasEllipse	Ellipse or ellipse segment on a Q3Canvas
Q3CanvasItem	Abstract graphic object on a Q3Canvas
Q3CanvasItemList	List of Q3CanvasItems
Q3CanvasLine	Line on a Q3Canvas
Q3CanvasPixmap	Pixmaps for Q3CanvasSprites
Q3CanvasPixmapArray	Array of Q3CanvasPixmaps
Q3CanvasPolygon	Polygon on a Q3Canvas
Q3CanvasPolygonalItem	Polygonal canvas item on a Q3Canvas
Q3CanvasRectangle	Rectangle on a Q3Canvas
Q3CanvasSpline	Multi-bezier splines on a Q3Canvas
Q3CanvasSprite	Animated canvas item on a Q3Canvas
Q3CanvasText	Text object on a Q3Canvas
Q3CanvasView	On-screen view of a Q3Canvas
Q3CheckListItem	Checkable list view items
Q3CheckTableItem	Checkboxes in Q3Tables
Q3ColorDrag	Drag and drop object for transferring colors between widgets
Q3ComboBox	Combined button and popup list
Q3ComboTableItem	Means of using comboboxes in Q3Tables
Q3DataBrowser	Data manipulation and navigation for data entry forms
Q3DataTable	Flexible SQL table widget that supports browsing and editing
Q3DataView	Read-only SQL forms
Q3DateEdit	Date editor
Q3DateTimeEdit	Combines a Q3DateEdit and Q3TimeEdit widget into a single widget for editing datetimes
Q3DateTimeEditBase	Abstraction for date and edit editors
Q3DeepCopy	Template class which ensures that implicitly shared and explicitly shared classes reference unique data
Q3Dict	Template class that provides a dictionary based on QString keys
Q3DictIterator	Iterator for Q3Dict collections
Q3Dns	Asynchronous DNS lookups
Q3DockArea	Manages and lays out Q3DockWindows
Q3DockWindow	Widget which can be docked inside a Q3DockArea or floated as a top level window on the desktop
Q3DragObject	Encapsulates MIME-based data transfer
Q3DropSite	Nothing and does nothing
Q3EditorFactory	Used to create editor widgets for QVariant data types
Q3FileDialog	Dialogs that allow users to select files or directories
Q3FileIconProvider	Icons for Q3FileDialog to use
Q3FilePreview	File previewing in Q3FileDialog
Q3Ftp	Implementation of the FTP protocol
Q3Grid	Simple geometry management of its children
Q3GridView	Abstract base for fixed-size grids
Q3GroupBox	Group box frame with a title
Q3HBox	Horizontal geometry management for its child widgets
Q3HButtonGroup	Organizes button widgets in a group with one horizontal row
Q3HGroupBox	Organizes widgets in a group with one horizontal row
Q3Header	Header row or column, e.g. for tables and listviews
Q3Http	Implementation of the HTTP protocol
Q3HttpHeader	Header information for HTTP
Q3HttpRequestHeader	Request header information for HTTP
Q3HttpResponseHeader	Response header information for HTTP
Q3IconDrag	Supports drag and drop operations within a Q3IconView
Q3IconDragItem	Encapsulates a drag item
Q3IconView	Area with movable labelled icons
Q3IconViewItem	Single item in a Q3IconView
Q3ImageDrag	Drag and drop object for transferring images
Q3IntCache	Template class that provides a cache based on long keys
Q3IntCacheIterator	Iterator for Q3IntCache collections
Q3IntDict	Template class that provides a dictionary based on long keys
Q3IntDictIterator	Iterator for Q3IntDict collections
Q3ListBox	List of selectable, read-only items
Q3ListBoxItem	The base class of all list box items
Q3ListBoxPixmap	List box items with a pixmap and optional text
Q3ListBoxText	List box items that display text
Q3ListView	Implements a list/tree view
Q3ListViewItem	Implements a list view item
Q3ListViewItemIterator	Iterator for collections of Q3ListViewItems
Q3LocalFs	Implementation of a QNetworkProtocol that works on the local file system
Q3MainWindow	Main application window, with a menu bar, dock windows (e.g. for toolbars), and a status bar
Q3MemArray	Template class that provides arrays of simple types
Q3MimeSourceFactory	Extensible provider of mime-typed data
Q3MultiLineEdit	Simple editor for inputting text
Q3NetworkOperation	Common operations for network protocols
Q3NetworkProtocol	Common API for network protocols
Q3PaintDeviceMetrics	Information about a paint device
Q3Painter	Qt 3 compatibility wrapper for QPainter
Q3Picture	Paint device that records and replays Q3Painter commands
Q3PointArray
Q3PopupMenu	Thin compatibility wrapper around QMenu
Q3Process	Used to start external programs and to communicate with them
Q3ProgressBar	Horizontal progress bar
Q3ProgressDialog	Feedback on the progress of a slow operation
Q3PtrCollection	The base class of most pointer-based Qt collections
Q3PtrDict	Template class that provides a dictionary based on void* keys
Q3PtrDictIterator	Iterator for Q3PtrDict collections
Q3PtrList	Template class that provides a list
Q3PtrListIterator	Iterator for Q3PtrList collections
Q3PtrQueue	Template class that provides a queue
Q3PtrStack	Template class that provides a stack
Q3PtrVector	Template collection class that provides a vector (array)
Q3RangeControl	Integer value within a range
Q3ScrollView	Scrolling area with on-demand scroll bars
Q3Semaphore	Robust integer semaphore
Q3ServerSocket	TCP-based server
Q3Shared	Used internally for implementing shared classes
Q3Signal	Can be used to send signals for classes that don't inherit QObject
Q3SimpleRichText	Small displayable piece of rich text
Q3Socket	Buffered TCP connection
Q3SocketDevice	Platform-independent low-level socket API
Q3SqlCursor	Browsing and editing of SQL tables and views
Q3SqlEditorFactory	Used to create the editors used by Q3DataTable and Q3SqlForm
Q3SqlFieldInfo	Stores meta data associated with a SQL field
Q3SqlForm	Creates and manages data entry forms tied to SQL databases
Q3SqlPropertyMap	Used to map widgets to SQL fields
Q3SqlRecordInfo	Encapsulates a set of database field meta data
Q3SqlSelectCursor	Browsing of general SQL SELECT statements
Q3StoredDrag	Simple stored-value drag object for arbitrary MIME data
Q3StrIList	Doubly-linked list of char* with case-insensitive comparison
Q3StrList	Doubly-linked list of char*
Q3StrListIterator	Iterator for the Q3StrList and Q3StrIList classes
Q3StyleSheet	Collection of styles for rich text rendering and a generator of tags
Q3StyleSheetItem	Encapsulation of a set of text styles
Q3SyntaxHighlighter	Base class for implementing Q3TextEdit syntax highlighters
Q3TabDialog	Stack of tabbed widgets
Q3Table	Flexible editable table widget
Q3TableItem	The cell content for Q3Table cells
Q3TableSelection	Access to a selected area in a Q3Table
Q3TextBrowser	Rich text browser with hypertext navigation
Q3TextDrag	Drag and drop object for transferring plain and Unicode text
Q3TextEdit	Powerful single-page rich text editor
Q3TextStream	Basic functions for reading and writing text using a QIODevice
Q3TextView	Rich text viewer
Q3TimeEdit	Time editor
Q3ToolBar	Movable panel containing widgets such as tool buttons
Q3UriDrag	Drag object for a list of URI references
Q3Url	URL parser and simplifies working with URLs
Q3UrlOperator	Common operations on URLs
Q3VBox	Vertical geometry management of its child widgets
Q3VButtonGroup	Organizes button widgets in a vertical column
Q3VGroupBox	Organizes widgets in a group with one vertical column
Q3ValueList	Value-based template class that provides lists
Q3ValueListConstIterator	Const iterator for Q3ValueList
Q3ValueListIterator	Iterator for Q3ValueList
Q3ValueStack	Value-based template class that provides a stack
Q3ValueVector	Value-based template class that provides a dynamic array
Q3WhatsThis
Q3WidgetStack	Stack of widgets of which only the top widget is user-visible
Q3Wizard	Framework for wizard dialogs

Detailed Description

The Qt3Support module provides classes that ease porting from Qt 3 to Qt 4.

To include the definitions of the module's classes, use the following directive:

 #include <Qt3Support>

To link against the module, add this line to your qmake .pro file:

 QT += qt3support

This module is part of the Qt Desktop Edition and the Qt Open Source Edition. Most classes offered by this module are also part of the Qt Desktop Light Edition. Classes that are not available for Qt Desktop Light Edition users are marked as such in the class documentation.