| 1 | /**************************************************************************** | 
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| 2 | ** | 
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). | 
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| 4 | ** Contact: Qt Software Information (qt-info@nokia.com) | 
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| 5 | ** | 
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| 6 | ** This file is part of the documentation of the Qt Toolkit. | 
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| 7 | ** | 
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| 8 | ** $QT_BEGIN_LICENSE:LGPL$ | 
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| 9 | ** Commercial Usage | 
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| 10 | ** Licensees holding valid Qt Commercial licenses may use this file in | 
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| 11 | ** accordance with the Qt Commercial License Agreement provided with the | 
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| 12 | ** Software or, alternatively, in accordance with the terms contained in | 
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| 13 | ** a written agreement between you and Nokia. | 
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| 14 | ** | 
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| 15 | ** GNU Lesser General Public License Usage | 
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| 16 | ** Alternatively, this file may be used under the terms of the GNU Lesser | 
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| 17 | ** General Public License version 2.1 as published by the Free Software | 
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| 18 | ** Foundation and appearing in the file LICENSE.LGPL included in the | 
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| 19 | ** packaging of this file.  Please review the following information to | 
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| 20 | ** ensure the GNU Lesser General Public License version 2.1 requirements | 
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| 21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | 
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| 22 | ** | 
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| 23 | ** In addition, as a special exception, Nokia gives you certain | 
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| 24 | ** additional rights. These rights are described in the Nokia Qt LGPL | 
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| 25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this | 
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| 26 | ** 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 are unsure which license is appropriate for your use, please | 
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| 37 | ** contact the sales department at qt-sales@nokia.com. | 
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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 qt-embedded-deployment.html | 
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| 44 |  | 
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| 45 | \title Deploying Qt for Embedded Linux Applications | 
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| 46 | \ingroup qt-embedded-linux | 
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| 47 |  | 
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| 48 | The procedure of deploying an Qt application on \l{Qt for Embedded Linux} | 
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| 49 | is essentially the same as the deployment procedure on X11 platforms | 
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| 50 | which is described in detail in the \l {Deploying an Application | 
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| 51 | on X11 Platforms} documentation. See also the \l {Deploying Qt | 
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| 52 | applications}{general remarks} about deploying Qt applications. | 
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| 53 |  | 
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| 54 | In addition, there is a couple of Qt for Embedded Linux specific issues to | 
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| 55 | keep in mind: | 
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| 56 |  | 
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| 57 | \tableofcontents | 
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| 58 |  | 
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| 59 | \section1 Fonts | 
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| 60 |  | 
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| 61 | When Qt for Embedded Linux applications run, they look for a file called | 
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| 62 | \c fontdir in Qt's \c /lib/fonts/ directory defining the | 
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| 63 | fonts that are available to the application (i.e. the fonts | 
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| 64 | located in the mentioned directory). | 
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| 65 |  | 
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| 66 | For that reason, the preferred fonts must be copied to the \c | 
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| 67 | /lib/fonts/ directory, and the \c fontdir file must be customized | 
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| 68 | accordingly.  See the \l {Qt for Embedded Linux Fonts}{fonts} documentation | 
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| 69 | for more details about the supported font formats. | 
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| 70 |  | 
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| 71 | Note that the application will look for the \c /lib/fonts/ | 
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| 72 | directory relative to the path set using the \c -prefix parameter | 
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| 73 | when running the \c configure script; ensure that this is a | 
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| 74 | sensible path in the target device environment. See the \l | 
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| 75 | {Installing Qt for Embedded Linux#Step 3: Building the | 
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| 76 | Library}{installation} documentation for more details. | 
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| 77 |  | 
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| 78 | \section1 Environment Variables | 
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| 79 |  | 
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| 80 | In general, any variable value that differs from the provided | 
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| 81 | default values must be set explicitly in the target device | 
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| 82 | environment.  Typically, these include the QWS_MOUSE_PROTO, | 
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| 83 | QWS_KEYBOARD and QWS_DISPLAY variables specifying the drivers for | 
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| 84 | pointer handling, character input and display management, | 
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| 85 | respectively. | 
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| 86 |  | 
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| 87 | For example, without the proper mouse and keyboard drivers, there | 
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| 88 | is no way to give any input to the application when it is | 
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| 89 | installed on the target device. By running the \c configure script | 
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| 90 | using the \c -qt-kbd-<keyboarddriver> and \c | 
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| 91 | -qt-mouse-<mousedriver> options, the drivers are enabled, but in | 
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| 92 | addition the drivers and the preferred devices must be specified | 
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| 93 | as the ones to use in the target environment, by setting the | 
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| 94 | environment variables. | 
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| 95 |  | 
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| 96 | See the \l{Qt for Embedded Linux Pointer Handling}{pointer handling}, | 
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| 97 | \l{Qt for Embedded Linux Character Input}{character input} and | 
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| 98 | \l{Qt for Embedded Linux Display Management}{display management} | 
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| 99 | documentation for more information. | 
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| 100 |  | 
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| 101 | \section1 Framebuffer Support | 
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| 102 |  | 
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| 103 | No particular actions are required to enable the framebuffer on | 
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| 104 | target devices: The Linux framebuffer is enabled by default on all | 
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| 105 | modern Linux distributions. For information on older versions, see | 
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| 106 | \l http://en.tldp.org/HOWTO/Framebuffer-HOWTO.html. | 
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| 107 |  | 
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| 108 | To test that the Linux framebuffer is set up correctly, and that | 
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| 109 | the device permissions are correct, use the program provided by | 
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| 110 | the \l {Testing the Linux Framebuffer} document. | 
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| 111 | */ | 
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