[556] | 1 | /****************************************************************************
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| 2 | **
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[651] | 3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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[556] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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| 6 | **
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| 7 | ** This file is part of the documentation of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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| 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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| 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | /*!
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| 43 | \page examples-overview.html
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| 44 | \raw HTML
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| 45 | <script>
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| 46 | document.location.href = "examples.html";
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| 47 | </script>
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| 48 | \endraw
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| 49 | Click this \l{Qt Examples}{link} if you don't get redirected.
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| 50 | */
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| 51 |
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| 52 | /*!
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| 53 | \page examples.html
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| 54 | \title Qt Examples
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| 55 | \brief The example programs provided with Qt.
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| 56 |
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| 57 | \previouspage Tutorials
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| 58 | \contentspage How to Learn Qt
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| 59 | \nextpage Qt Demonstrations
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| 60 |
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| 61 | Qt is supplied with a variety of examples that cover almost every aspect
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| 62 | of development. They are not all designed to be impressive when you run
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| 63 | them, but their source code is carefully written to show good Qt
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| 64 | programming practices. You can launch any of these programs from the
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| 65 | \l{Examples and Demos Launcher} application.
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| 66 |
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| 67 | These examples are ordered by functional area, but many examples often
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| 68 | use features from many parts of Qt to highlight one area in particular.
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| 69 | If you are new to Qt, you should probably start by going through the
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| 70 | \l{Tutorials} before you have a look at the
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| 71 | \l{mainwindows/application}{Application} example.
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| 72 |
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| 73 | In addition to the examples and the tutorial, Qt includes a
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| 74 | \l{Qt Demonstrations}{selection of demos} that deliberately show off
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| 75 | Qt's features. You might want to look at these as well.
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| 76 |
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[651] | 77 | \section1 \l{Widgets Examples}{Widgets}
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| 78 | \beginfloatleft
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| 79 | \l{Widgets Examples}{\inlineimage widget-examples.png
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| 80 | }
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| 81 |
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| 82 | \endfloat
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[556] | 83 | Qt comes with a large range of standard widgets that users of modern
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| 84 | applications have come to expect. You can also develop your own custom
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| 85 | widgets and controls, and use them alongside standard widgets.
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| 86 |
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| 87 | It is even possible to provide custom styles and themes for widgets that can
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| 88 | be used to change the appearance of standard widgets and appropriately
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| 89 | written custom widgets.
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| 90 |
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[651] | 91 | \clearfloat
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| 92 | \section1 \l{Dialog Examples}{Dialogs}
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| 93 | \beginfloatleft
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| 94 | \l{Dialog Examples}{\inlineimage dialog-examples.png
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| 95 | }
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| 96 |
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| 97 | \endfloat
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[556] | 98 | Qt includes standard dialogs for many common operations, such as file
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| 99 | selection, printing, and color selection.
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| 100 |
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| 101 | Custom dialogs can also be created for specialized modal or modeless
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| 102 | interactions with users.
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| 103 |
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[651] | 104 | \clearfloat
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| 105 | \section1 \l{Main Window Examples}{Main Windows}
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| 106 | \beginfloatleft
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| 107 | \l{Main Window Examples}{\inlineimage mainwindow-examples.png
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| 108 | }
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[556] | 109 |
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[651] | 110 | \endfloat
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| 111 | All the standard features of application main windows are provided by Qt.
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[556] | 112 |
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| 113 | Main windows can have pull down menus, tool bars, and dock windows. These
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| 114 | separate forms of user input are unified in an integrated action system that
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| 115 | also supports keyboard shortcuts and accelerator keys in menu items.
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| 116 |
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[651] | 117 | \clearfloat
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| 118 | \section1 \l{Layout Examples}{Layouts}
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| 119 | \beginfloatleft
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| 120 | \l{Layout Examples}{\inlineimage layout-examples.png
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| 121 | }
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| 122 |
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| 123 | \endfloat
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[556] | 124 | Qt uses a layout-based approach to widget management. Widgets are arranged in
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| 125 | the optimal positions in windows based on simple layout rules, leading to a
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| 126 | consistent look and feel.
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| 127 |
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| 128 | Custom layouts can be used to provide more control over the positions and
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| 129 | sizes of child widgets.
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| 130 |
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[651] | 131 | \clearfloat
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| 132 | \section1 \l{Item Views Examples}{Item Views}
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| 133 | \beginfloatleft
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| 134 | \l{Item Views Examples}{\inlineimage itemview-examples.png
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| 135 | }
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| 136 |
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| 137 | \endfloat
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[556] | 138 | Item views are widgets that typically display data sets. Qt 4's model/view
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| 139 | framework lets you handle large data sets by separating the underlying data
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| 140 | from the way it is represented to the user, and provides support for
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| 141 | customized rendering through the use of delegates.
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| 142 |
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[651] | 143 | \clearfloat
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| 144 | \section1 \l{Graphics View Examples}{Graphics View}
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| 145 | \beginfloatleft
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| 146 | \l{Graphics View Examples}{\inlineimage graphicsview-examples.png
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| 147 | }
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| 148 |
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| 149 | \endfloat
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[556] | 150 | Qt is provided with a comprehensive canvas through the GraphicsView
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| 151 | classes.
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| 152 |
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[651] | 153 | \clearfloat
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| 154 | \section1 \l{Painting Examples}{Painting}
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| 155 | \beginfloatleft
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| 156 | \l{Painting Examples}{\inlineimage painting-examples.png
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| 157 | }
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| 158 |
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| 159 | \endfloat
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[556] | 160 | Qt's painting system is able to render vector graphics, images, and outline
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| 161 | font-based text with sub-pixel accuracy accuracy using anti-aliasing to
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| 162 | improve rendering quality.
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| 163 |
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[651] | 164 | \clearfloat
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| 165 | \section1 \l{Rich Text Examples}{Rich Text}
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| 166 | \beginfloatleft
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| 167 | \l{Rich Text Examples}{\inlineimage richtext-examples.png
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| 168 | }
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| 169 |
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| 170 | \endfloat
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[556] | 171 | Qt provides powerful document-oriented rich text engine that supports Unicode
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| 172 | and right-to-left scripts. Documents can be manipulated using a cursor-based
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| 173 | API, and their contents can be imported and exported as both HTML and in a
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| 174 | custom XML format.
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| 175 |
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[651] | 176 | \clearfloat
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| 177 | \section1 \l{Desktop Examples}{Desktop}
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| 178 | \beginfloatleft
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| 179 | \l{Desktop Examples}{\inlineimage desktop-examples.png
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| 180 | }
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| 181 |
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| 182 | \endfloat
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[556] | 183 | Qt provides features to enable applications to integrate with the user's
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| 184 | preferred desktop environment.
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| 185 |
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| 186 | Features such as system tray icons, access to the desktop widget, and
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| 187 | support for desktop services can be used to improve the appearance of
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| 188 | applications and take advantage of underlying desktop facilities.
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| 189 |
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[651] | 190 | \clearfloat
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| 191 | \section1 \l{Drag and Drop Examples}{Drag and Drop}
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| 192 | \beginfloatleft
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| 193 | \l{Drag and Drop Examples}{\inlineimage draganddrop-examples.png
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| 194 | }
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| 195 |
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| 196 | \endfloat
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[556] | 197 | Qt supports native drag and drop on all platforms via an extensible
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| 198 | MIME-based system that enables applications to send data to each other in the
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| 199 | most appropriate formats.
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| 200 |
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| 201 | Drag and drop can also be implemented for internal use by applications.
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| 202 |
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[651] | 203 | \clearfloat
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| 204 | \section1 \l{Threading and Concurrent Programming Examples}{Threading and Concurrent Programming}
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| 205 | \beginfloatleft
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| 206 | \l{Threading and Concurrent Programming Examples}{\inlineimage thread-examples.png
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| 207 | }
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| 208 |
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| 209 | \endfloat
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[556] | 210 | Qt 4 makes it easier than ever to write multithreaded applications. More
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| 211 | classes have been made usable from non-GUI threads, and the signals and slots
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| 212 | mechanism can now be used to communicate between threads.
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| 213 |
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| 214 | The QtConcurrent namespace includes a collection of classes and functions
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| 215 | for straightforward concurrent programming.
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| 216 |
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[651] | 217 | \clearfloat
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| 218 | \section1 \l{Tools Examples}{Tools}
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| 219 | \beginfloatleft
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| 220 | \l{Tools Examples}{\inlineimage tool-examples.png
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| 221 | }
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| 222 |
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| 223 | \endfloat
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[556] | 224 | Qt is equipped with a range of capable tool classes, from containers and
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| 225 | iterators to classes for string handling and manipulation.
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| 226 |
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| 227 | Other classes provide application infrastructure support, handling plugin
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| 228 | loading and managing configuration files.
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| 229 |
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[651] | 230 | \clearfloat
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| 231 | \section1 \l{Network Examples}{Network}
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| 232 | \beginfloatleft
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| 233 | \l{Network Examples}{\inlineimage network-examples.png
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| 234 | }
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| 235 |
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| 236 | \endfloat
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[556] | 237 | Qt is provided with an extensive set of network classes to support both
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| 238 | client-based and server side network programming.
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| 239 |
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[651] | 240 | \clearfloat
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| 241 | \section1 \l{Inter-Process Communication Examples}{Inter-Process Communication}
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| 242 | \beginfloatleft
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| 243 | \l{Inter-Process Communication Examples}{\inlineimage ipc-examples.png
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| 244 | }
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[556] | 245 |
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[651] | 246 | \endfloat
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| 247 | Simple, lightweight inter-process communication can be performed using shared
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| 248 | memory and local sockets.
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| 249 |
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| 250 | \clearfloat
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