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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
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+This examples directory contains lots of Qt examples. And there are
+additional examples in ../tools/designer/examples/ and in the
+extensions subdirectories. The documentation contains two detailed Qt
+tutorials and additional tutorials for Qt Designer. The examples here
+are useful for learning particular Qt classes and techniques, but to
+learn Qt itself we recommend starting with the documentation's short
+"How to Learn Qt" document.
+
+It is best to run each example from its own directory since some of
+them assume they are run from there.
+
+
+aclock
+ This example displays an analog clock widget.
+ It shows how to create a custom widget (QWidget subclass) and how
+ to create a timer using QTimer.
+
+action
+ A single document interface application example with a menu bar,
+ tool bar and status bar that provides simple text editing.
+ It shows how to implement a typical modern application, how to
+ create a QMainWindow subclass, and how to create actions that can
+ be assigned to menus (QPopupMenu) and toolbars (QToolBar) using
+ QAction. It also shows how to print using QSimpleRichText.
+
+addressbook [obsolete]
+
+application [obsolete; see the action example instead]
+
+biff [Unix-specific]
+ Biff is a simple graphical program to indicate whether there is
+ new mail; it looks like xbiff but is much shorter.
+
+buttongroups
+ This examples shows different types of group boxes (QButtonGroup,
+ and QGroupBox), and different kinds of buttons (QCheckBox,
+ QRadioButton, and QPushButton). It also shows how to add a
+ QPopupMenu to a button.
+
+canvas
+ This examples demonstrates many of QCanvasView's facilities, but
+ by no means all of them. It uses QCanvasItem, QCanvasLine,
+ QCanvasRectangle, QCanvasEllipse, QCanvasSprite, and of course
+ QCanvas.
+
+chart
+ An application for maintaining simple numeric data and visualising
+ the data using pie and bar charts.
+ Tutorial #2 explains this application in detail.
+
+checklists
+ Shows two list views with check box and radio button items. (These
+ kinds of lists are often used with setup programs.)
+ Shows the use of QListView, QListViewItem, QCheckListItem,
+ QListViewItemIterator, and QValueList.
+
+cursor
+ This example shows how to set the mouse cursor for a widget. Shows
+ Qt's cursors and a custom cursor using QLabel and QCursor.
+
+customlayout
+ This examples demonstrates how to write a customized layout
+ (geometry) manager, like a Card-Layout, Border-Layout and
+ Flow-Layout.
+
+dclock
+ This example displays a digital LCD clock and can switch between
+ time and date.
+ It uses the QLCDNumber widget and a couple of QTimers.
+
+demo
+ Run this to see almost all of Qt's widgets in action, including
+ drag and drop, 2D graphics, etc.
+
+desktop
+ The desktop demo contains three routines, each of which draws
+ something on the desktop. It does some nice stuff with QPainter,
+ and also demonstrates how one can treat the desktop as a widget
+ like any other.
+
+directpainter [Qt/Embedded-specific]
+ Shows the use of QDirectPainter.
+
+dirview
+ This example program demonstrates how to use a QListView and
+ QListViewItems to build a multi-column hierarchical, memory- and
+ CPU-efficient directory browser. It also demonstrates how to use
+ Drag'n'Drop in a QListview. (See also the fileiconview example.)
+
+distributor
+ This is a utility program that can be used to modify the paths
+ used in the Qt library binary to make the binary suitable for
+ distribution. For experts only.
+
+dragdrop
+ Demonstrates image and text drag and drop.
+
+drawdemo
+ Draws a color wheel, text and shapes. This example demonstrates
+ several drawing functions and printer output using QPainter,
+ QWMatrix, QFont, QFontMetrics, QColor, QBrush, and QPrinter. You
+ can easily add you own drawing functions. See "ourDrawFunctions".
+
+drawlines
+ This example shows very simple mouse-based user interaction and
+ painting without any world transform matrix or other advanced
+ features. Run the program, click the button, move the mouse,
+ release the button, and watch the lines get drawn.
+
+extension
+ An extension dialog with simple and advanced appearances
+ controlled by a toggle button.
+
+fileiconview
+ This example partially implements a very basic file manager using
+ a widget derived from QIconView to display the current directory.
+ It uses the DirectoryView widget from the dirview example to
+ display the directory tree.
+ It also shows how to add a QComboBox to a QToolBar and how to
+ implement a context menu using QPopupMenu.
+
+fonts [obsolete; see the qfd example instead]
+
+forever
+ WARNING: this program has a strobe effect.
+ See how fast Qt can draw colored rectangles. This example
+ continuously draws rectangles in a window and has another widget
+ that counts the number of rectangles that are drawn per second.
+
+gridview
+ A QGridView with 100x100 cells.
+
+hello
+ Hello world with colored animated wavy text.
+
+helpdemo
+ Shows how to use Qt Assistant as an application's online help
+ tool. (See also the helpsystem example.)
+
+helpsystem
+ This example shows how to implement context-sensitive help in
+ various ways in a Qt application using QToolTip, QWhatsThis, and
+ QAssistantClient to control Qt Assistant.
+
+helpviewer
+ The HelpViewer example implements a simple HTML help browser using
+ Qt's richtext capabilities.
+
+i18n
+ This example shows how to internationalize applications. Start it with
+ ./i18n en
+ to run the application in English, and with
+ ./i18n de
+ to run it in German. Other languages are also available including,
+ Arabic (ar), French (fr), Italian (it), Japanese (jp), Korean
+ (ko), Norwegian (no), and Russian (ru). Some languages depend on
+ the availability of suitable fonts.
+
+iconview
+ This example implements a flexible icon view which can store lots
+ of icon items. It supports Drag'n'Drop and different selection
+ modes using QIconView.
+
+kiosk [Qt/Embedded-specific]
+ An MPEG player.
+
+launcher [Qt/Embedded-specific]
+ A program launcher.
+
+layout [obsolete]
+ This example shows simple and intermediate use of Qt's layout
+ classes, QGridLaout, QBoxLayout etc.
+
+life
+ An implementation of the life game with a Unix-flavor GUI.
+
+lineedits
+ This example shows how to use various properties of QLineEdit
+ including echo modes, input masks, and validators.
+
+listbox
+ Shows QListBox options.
+
+listboxcombo
+ This example shows how to use QListBox (with single selection and
+ multi selection) and QComboBox (editable and non-editable).
+
+listviews
+ This examples shows how to work with QListView (a tree view
+ widget)
+
+mdi
+ Similar to the action example, but this time using MDI (Multiple
+ Document Interface). It subclasses QMainWindow and uses the
+ QWorkspace class to provide MDI and shows how to implement an MDI
+ Window menu.
+
+menu
+ This example demonstrates the simple use of menus (a menu bar and
+ pull-down menus), and a context menu. (See also the popup
+ example.)
+
+movies
+ The Movies example displays animated GIF files using the QMovie
+ and QLabel classes.
+
+network/archivesearch
+ Shows how to use QHttp to request and receive data from a web
+ site.
+
+network/clientserver
+ Provides a client application and a server application that
+ communicate using QSocket and QServerSocket.
+
+network/ftpclient
+ A simple FTP client that uses QFtp to retrieve directory listings
+ and to download and upload files.
+
+network/httpd
+ An extremely simple HTTP daemon built using QServerSocket.
+
+network/infoprotocol
+ A more complex client/server example.
+
+network/mail
+ A simple mail client that can send email using the QSocket class.
+
+network/networkprotocol
+ A simple implementation of a subset of the NNTP protocol. This
+ shows how to implement your own network protocols by subclassing
+ QNetworkProtocol.
+
+network/remotecontrol
+ Controlling one application from another using QSocket-based IPC.
+
+opengl/box
+ Shows how to use OpenGL in Qt using QGLWidget.
+
+opengl/gear
+ Shows how to build OpenGL display lists.
+
+opengl/glpixmap
+ This is based on the box example. It shows how to render an OpenGL
+ scene into a QPixmap.
+
+opengl/overlay
+ Demonstrates the use of OpenGL overlays (where supported).
+
+opengl/sharedbox
+ Demonstrates how to share OpenGL display lists with QGLWidgets.
+
+opengl/texture
+ Shows how to use OpenGL textures.
+
+picture
+ This example shows how to make, store to file, and read back, a
+ picture as a set of vector drawing commands.
+
+popup
+ This examples shows how to implement popup widgets.
+
+process
+ Shows how to execute a non-GUI application in a separate process
+ with I/O redirection.
+
+progress
+ WARNING: this program has a strobe effect.
+ This example presents a long-running process (drawing lots of
+ rectangles) and a QProgressDialog. Two types of progress dialog
+ are offered, one that simply shows text, and a custom one that
+ shows an animation using a QLabel and a QTimer.
+
+progressbar
+ Shows how to use a QProgressBar.
+
+qdir
+ Shows how to use and customize QFileDialog. Run
+ qdir --help
+ for details. Also shows QFileInfo.
+
+qfd
+ This example program displays all the characters of a selected
+ font. It shows the use of QFontDialog, QFontMetrics and QFontInfo,
+ and a QTable subclass.
+
+qmag
+ This is a simple magnifier-type program. It shows how one can do
+ some quite low-level operations portably using Qt.
+
+qwerty
+ Simple text editor for testing different character encodings.
+
+rangecontrols
+ This examples shows how to use QSpinBox and QSlider.
+
+regexptester
+ This little application is useful for testing regular expressions.
+
+richtext
+ This example shows the use of QTextView (a read/only QTextEdit
+ subclass).
+
+rot13
+ A simple implementation of the rot13 algorithm.
+
+scribble
+ An implementation of the well known scribble program. You can draw
+ with different pen colors and widths and save the result as a
+ pixmap in various formats. It shows how to do drawing using a
+ QWidget subclass (rather than a QCanvas for example). It also
+ shows how to add a QSpinBox to a QToolBar and how to implement a
+ button that pops up a menu (using QPushButton and QPopupMenu), and
+ also how to use the QColorDialog.
+
+scrollview
+ This example shows one way of using a QScrollview. This widget is
+ highly optimized for showing very large contents including child
+ widgets.
+
+showimg
+ This example reads and displays an image in any supported image
+ format (GIF, BMP, PPM, XMP, etc.)
+
+sound
+ Shows how to play sounds from a Qt application (and how to see if
+ sound is supported) using QSound.
+
+splitter
+ This example shows how to use QSplitter to give the user control
+ over how much vertical or horizontal space is given to child
+ widgets.
+
+sql/blob
+ Shows how to connect to a database and how to write to and read
+ BLOB fields (for those databases that support BLOBs).
+
+sql/overview [to be withdrawn]
+ This is just a series of tiny examples used by the SQL module
+ overview (sql.html).
+
+sql/sqltable
+ A very simple example that shows how to relate a database table to
+ a QDataTable.
+
+tabdialog
+ This example shows how to use a dialog with multiple tabs (pages).
+ It shows the use of QTabDialog and QFileInfo.
+
+table/bigtable
+ This shows how to create a sparse very large (1M x 1M cells)
+ QTable by avoiding the use of table items.
+
+table/small-table-demo
+ A small, simple QTable example that uses QTableItems to show text
+ and pixmaps, and QComboTableItems and QCheckTableItems to show how
+ they work.
+
+table/statistics
+ A QTable example that shows how to subclass QTableItem.
+
+tablet
+ This shows how to interact with a tablet device. It will only run
+ if a compatible tablet is installed.
+
+tetrix
+ This is the Qt implementation of the well known game Tetris, but
+ with an unusual twist, not to mention a comment that's almost a
+ work of art.
+
+textedit
+ A simple text editor based on QTextEdit.
+
+themes
+ This examples demonstrates how to draw widgets in different styles
+ (themes). Example themes looking like wood and metal are
+ implemented. You can switch between the different styles at
+ runtime using the menu. Shows how to create a QStyle subclass. Not
+ for the faint-hearted.
+
+tictac
+ This is an implementation of the Tic-Tac-Toe game.
+
+tooltip
+ This example widget demonstrates how to use tool tips for static
+ and dynamic regions within a widget using a QToolTip subclass.
+
+toplevel
+ This program allows you to set all the flags for a widget and then
+ displays the widget using the flags.
+
+trayicon [work in progress]
+
+tux
+ Shows how to create a non-rectangular window.
+
+widgets
+ Shows many Qt widgets (See also the demo example).
+
+wizard
+ This example shows how to use QWizard.
+
+xform
+ Demonstrates how to arbitrarily rotate, shear and scale text and
+ graphics using QWMatrix.
+
+xml/outliner
+ Shows how to read in an XML file using Qt's DOM classes and
+ display the data in a list view.
+
+xml/tagreader
+ Shows how to read an XML file using Qt's SAX classes.
+
+xml/tagreader-with-features
+ Shows how to read an XML file using Qt's SAX classes, and displays
+ the data showing the effects of different feature settings.
+