Qt3Support Module

Classes

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

Q3Frame

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

Q3HBoxLayout

Lines up widgets horizontally

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

Contains header information for HTTP

Q3HttpRequestHeader

Contains request header information for HTTP

Q3HttpResponseHeader

Contains 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

Q3VBoxLayout

Lines up widgets vertically

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.

Warning: The classes in this module are intended to be used in intermediate stages of a porting process and are not intended to be used in production code.

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

  1. #include <Qt3Support>

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

Note: Since this module provides compatibility classes for diverse parts of the Qt 3 API, it has dependencies on the QtCore, QtGui, QtNetwork, QtSql, and QtXml modules.

See also Porting to Qt 4.

Notes provided by the Qt Community

No notes