Difference between revisions of "Accessibility/10.0"

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The GNOME and KDE desktop environments included with PC-BSD provide accessibility features to assist users with vision and mobility impairments. This section provides an overview of these features and references to additional accessibility information.[[File:Dasher.png|thumb|393px|'''Figure 9.10a: Changing the Input Device in Dasher''']] {{note|icon64=if you install the GNOME-Accessibility or KDE-Accessibility system components, most of the applications installed with those components can also be started from the command line, regardless of which desktop a user is logged into.}}
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The GNOME and KDE desktop environments provide accessibility features to assist users with vision and mobility impairments. In PC-BSD®, these desktops can be installed either during installation or afterwards using {{local|link=Package Manager}}.
  
=== GNOME Accessibility Tools === <!--T:3-->
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This section provides an overview of the features provided by each desktop and additional references to these features.
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=== GNOME Universal Access === <!--T:3-->
  
 
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To install the GNOME accessibility tools, make sure that the "GNOME-Accessibility" box is checked (it is by default) when selecting to install GNOME either during installation or afterwards using <span class=traverse>''Control Panel''{{rarr}}''Package Manager''{{rarr}}''Desktops''</span>.
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GNOME3 provides a "Universal Access" utility for configuring the desktop for accessibility. To open this utility, go to  
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<span class=traverse>''Applications''{{rarr}}''Settings''{{rarr}}''Universal Access''</span>. This will open the screen shown in Figure 9.9a.
  
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The GNOME-Accessibility component installs the following software:
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[[File:Access1.png|thumb|'''Figure 9.9a: Universal Access Screen''']]
  
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* '''{{Citelink|url=http://www.inference.phy.cam.ac.uk/dasher/|txt=dasher}}:''' supports alternative input devices such as a joystick, touchscreen, trackball, head-mouse, or eyetracker. In GNOME, this utility is located in <span class=traverse>''Applications''{{rarr}}''Utilities''{{rarr}}''Dasher''</span>. It can also be started from the command line by typing '''dasher'''. To change the input device, start dasher and click <span class=traverse>''Edit''{{rarr}}''Preferences''{{rarr}}''Control''</span>, shown in Figure 9.10a.
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The “Seeing” tab shown in this screen has options for assisting users with low vision.
  
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* '''{{Citelink|url=http://espeak.sourceforge.net/|txt=espeak}}:''' a speech synthesizer for English and other languages. NEEDS TESTING AS DOES NOT WORK
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The “Hearing” tab can be used to enable visual alerts, either to the window title of the current window or the entire screen. It provides a “Test flash” button for testing the settings.
  
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* '''{{Citelink|url=https://wiki.gnome.org/Gok|txt=gok}}:''' application which displays virtual keyboards. You can use a mouse or an alternative pointing device to operate the virtual keyboards. It generates dynamic keyboards that contain keys to represent the applications that are running on your desktop or the menus that are contained in an application. In GNOME, this utility is located in <span class=traverse>''System''{{rarr}}''Preferences''{{rarr}}''Assistive Technologies''</span>, or you can type '''gok''' at the command line. [[File:Gok.png|thumb|'''Figure 9.10b: gok Main Screen''']] Check the box ''Enable assistive technologies'' and then press the ''Close and Log Out'' button. Once you log back in, you can start this program by typing '''gok''' in a terminal. To start the virtual keyboard, click "Compose" in the main window, shown in Figure 9.10b. You can set your gok preferences by clicking <span class=traverse>''GOK''{{rarr}}''Preferences''</span>.
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The “Typing” tab, shown in Figure 9.9b, is used to enable features to assist users with mobility impairments.
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[[File:Access2.png|thumb|'''Figure 9.9b: Keyboard and Key Options''']]
  
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* '''{{Citelink|url=https://launchpad.net/mousetweaks/|txt=mousetweaks}}:''' provides mouse accessibility enhancements while logged into GNOME, such as simulating different mouse clicks without using physical buttons and a delay-click feature which opens a context menu. To configure mousetweaks within GNOME, go to <span class=traverse>''System''{{rarr}}''Preferences''{{rarr}}''Mouse''{{rarr}}''Accessibility''</span>. In the screen shown in Figure 9.10c, if you check the box ''Trigger secondary click by holding down the primary button'', you can simulate a secondary click on a mouse with one button by keeping the primary mouse button pressed without moving the pointer for the time determined by the delay slider. If you check the box ''Initiate click when stopping pointer movement'', you will activate dwell click. This allows you to assign actions to a single primary click, double click, drag click, and secondary click without having to actually click a mouse button.
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More information about each of the options provided by Universal Access can be found {{Citelink|url=https://help.gnome.org/users/gnome-help/stable/a11y.html|txt=here}}.
[[File:Mousetweaks.png|thumb|300px|'''Figure 9.10c: Configuring mousetweaks''']]
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====Orca Screen Reader==== <!--T:33-->
The GNOME-Accessibility component also adds the following options to the login Accessibility screen shown in Figure 4.8b:
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* Use on-screen keyboard
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If you enable the “Screen Reader” in the “Seeing” tab, you can open the reader from <span class=traverse>''Applications''{{rarr}}''Utilities''{{rarr}}''Orca''</span>. In the example shown in Figure 9.9c, the user has clicked the "Preferences" button.
  
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* Use screen reader
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[[File:Access3.png|thumb|'''Figure 9.9c: Orca Preferences''']]
  
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* Use screen magnifier
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You should review the configurable options in each of the tabs to determine which ones best suit your needs. For more information about each of these options and additional tips for using Orca, refer to the {{Citelink|url=https://help.gnome.org/users/orca/stable/index.html.en|txt=Orca Screen Reader webpage}}.
 
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More information about GNOME-Accessibility can be found in the {{Citelink|url=http://library.gnome.org/users/gnome-access-guide/stable/|txt=GNOME Desktop Accessibility Guide}}.
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=== KDE Accessibility Tools === <!--T:16-->
 
=== KDE Accessibility Tools === <!--T:16-->
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The KDE-Accessibility component installs the following software:[[File:Kmousetool.png|thumb|393px|'''Figure 9.10d: Configuring KMouseTool''']]
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The KDE-Accessibility component installs the following software:[[File:Kmousetool.png|thumb|393px|'''Figure 9.9d: Configuring KMouseTool''']]
 
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* '''{{Citelink|url=http://espeak.sourceforge.net/|txt=espeak}}:''' a speech synthesizer for English and other languages. DOES NOT WORK, NEEDS MORE TESTING
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* '''{{Citelink|url=http://www.kde.org/applications/utilities/kmousetool/|txt=KMouseTool}}:''' clicks the mouse whenever the mouse cursor pauses briefly. It can also drag the mouse, although this takes a bit more practice. To start this utility in KDE, click <span class=traverse>''Applications''{{rarr}}''Utilities''{{rarr}}''Automatic Mouse Click''</span> or type '''kmousetool''' from the command line. In the screen shown in Figure 9.10d, check the settings you wish to use, click the "Apply" button, then click the "Start" button. If you quit this screen, it will be added to the system tray and will continue to run until you launch its icon and click the "Stop" button. A PDF of the KMouseTool Handbook can be downloaded from the {{Citelink|url=http://docs.kde.org/stable/en/kdeaccessibility/kmousetool/kmousetool.pdf|txt=KDE site}}.
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* '''{{Citelink|url=http://www.kde.org/applications/utilities/kmousetool/|txt=KMouseTool}}:''' clicks the mouse whenever the mouse cursor pauses briefly. It can also drag the mouse, although this takes a bit more practice. To start this utility in KDE, click <span class=traverse>''Applications''{{rarr}}''Utilities''{{rarr}}''Automatic Mouse Click''</span> or type '''kmousetool''' from the command line. In the screen shown in Figure 9.9d, check the settings you wish to use, click the "Apply" button, then click the "Start" button. If you quit this screen, it will be added to the system tray and will continue to run until you launch its icon and click the "Stop" button. A PDF of the KMouseTool Handbook can be downloaded from the {{Citelink|url=http://docs.kde.org/stable/en/kdeaccessibility/kmousetool/kmousetool.pdf|txt=KDE site}}.
  
 
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* '''{{Citelink|url=http://docs.kde.org/stable/en/kdeaccessibility/kmouth/|txt=kmouth}}:''' enables persons that cannot speak to speak through their computer. It keeps a history of spoken sentences from which the user can select to be re-spoken. To start this program, click <span class=traverse>''Applications''{{rarr}}''Utilities''{{rarr}}''Speech Synthesizer Frontend''</span> or type '''kmouth''' from the command line. The first time you run this application, a configuration wizard will prompt you to set the command to use for speaking texts, the character encoding, and a language phrase book. DOES NOT WORK, NEEDS MORE TESTING
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* '''KMouth:''' enables persons that cannot speak to speak through their computer. It keeps a history of spoken sentences from which the user can select to be re-spoken. To start this program, click <span class=traverse>''Applications''{{rarr}}''Utilities''{{rarr}}''Speech Synthesizer Frontend''</span> or type '''kmouth''' from the command line. The first time you run this application, a configuration wizard will prompt you to set the command to use for speaking texts (such as /usr/local/bin/espeak), the character encoding, and a language phrase book. Refer to the {{Citelink|url=http://docs.kde.org/stable/en/kdeaccessibility/kmouth/|txt=KMouth Handbook}} for more information about configuring and using this tool.
 
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* '''{{Citelink|url=http://devel.freebsoft.org/speechd|txt=speech-dispatcher}}:''' speech synthesis interface. DOES NOT WORK, NEEDS MORE TESTING
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More information about KDE-Accessibility can be found in the {{Citelink|url=http://userbase.kde.org/Applications/Accessibility|txt=KDE UserBase Wiki}}.
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Latest revision as of 03:00, 29 January 2014


Contents


The GNOME and KDE desktop environments provide accessibility features to assist users with vision and mobility impairments. In PC-BSD®, these desktops can be installed either during installation or afterwards using Package Manager.

This section provides an overview of the features provided by each desktop and additional references to these features.

[edit] GNOME Universal Access

GNOME3 provides a "Universal Access" utility for configuring the desktop for accessibility. To open this utility, go to Applications → Settings → Universal Access. This will open the screen shown in Figure 9.9a.

Figure 9.9a: Universal Access Screen

The “Seeing” tab shown in this screen has options for assisting users with low vision.

The “Hearing” tab can be used to enable visual alerts, either to the window title of the current window or the entire screen. It provides a “Test flash” button for testing the settings.

The “Typing” tab, shown in Figure 9.9b, is used to enable features to assist users with mobility impairments.

Figure 9.9b: Keyboard and Key Options

More information about each of the options provided by Universal Access can be found here[1].

[edit] Orca Screen Reader

If you enable the “Screen Reader” in the “Seeing” tab, you can open the reader from Applications → Utilities → Orca. In the example shown in Figure 9.9c, the user has clicked the "Preferences" button.

Figure 9.9c: Orca Preferences

You should review the configurable options in each of the tabs to determine which ones best suit your needs. For more information about each of these options and additional tips for using Orca, refer to the Orca Screen Reader webpage[2].

[edit] KDE Accessibility Tools

To install the KDE accessibility tools, make sure that the "KDE-Accessibility" box is checked (it is by default) when selecting to install KDE either during installation or afterwards using Control Panel → Package Manager → Desktops.

The KDE-Accessibility component installs the following software:
Figure 9.9d: Configuring KMouseTool
  • KMag[3]: a screen magnifier. In KDE, this application is in Applications → Utilities → Screen Magnifier or you can type kmag from the command line. Drag the magnifier window over the text you wish to magnify or click its "Settings" button to view the shortcuts for its various modes. Press F1 while the application is open to access the Kmagnifier Handbook.
  • KMouseTool[4]: clicks the mouse whenever the mouse cursor pauses briefly. It can also drag the mouse, although this takes a bit more practice. To start this utility in KDE, click Applications → Utilities → Automatic Mouse Click or type kmousetool from the command line. In the screen shown in Figure 9.9d, check the settings you wish to use, click the "Apply" button, then click the "Start" button. If you quit this screen, it will be added to the system tray and will continue to run until you launch its icon and click the "Stop" button. A PDF of the KMouseTool Handbook can be downloaded from the KDE site[5].
  • KMouth: enables persons that cannot speak to speak through their computer. It keeps a history of spoken sentences from which the user can select to be re-spoken. To start this program, click Applications → Utilities → Speech Synthesizer Frontend or type kmouth from the command line. The first time you run this application, a configuration wizard will prompt you to set the command to use for speaking texts (such as /usr/local/bin/espeak), the character encoding, and a language phrase book. Refer to the KMouth Handbook[6] for more information about configuring and using this tool.


References


  1. https://help.gnome.org/users/gnome-help/stable/a11y.html
  2. https://help.gnome.org/users/orca/stable/index.html.en
  3. http://docs.kde.org/stable/en/kdeaccessibility/kmag/
  4. http://www.kde.org/applications/utilities/kmousetool/
  5. http://docs.kde.org/stable/en/kdeaccessibility/kmousetool/kmousetool.pdf
  6. http://docs.kde.org/stable/en/kdeaccessibility/kmouth/
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