# Guia de Acessibilidade do Ambiente de Trabalho GNOME

The GNOME Accessibility Guide is for users, system administrators, and anyone else who is interested in how the GNOME Desktop supports people with disabilities. This guide also addresses the requirements of Section 508 of the U.S. Rehabilitation Act.

2006
Don Scorgie
2006
Brent Smith
2005
2004
2003
2002
Sun Microsystems, Inc.
2007, 2008
Duarte Loreto (happyguy_pt@hotmail.com)
Projecto de Documentação do GNOME

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License (GFDL), Version 1.1 or any later version published by the Free Software Foundation with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. You can find a copy of the GFDL here or in the file COPYING-DOCS distributed with this manual.

This manual is part of a collection of GNOME manuals distributed under the GFDL. If you want to distribute this manual separately from the collection, you can do so by adding a copy of the license to the manual, as described in Section 6 of the license.

Muitos dos nomes utilizados pelas empresas para distinguir os seus produtos e serviços são reclamados como marcas registadas. Onde esses nomes surgirem em qualquer documentação GNOME, e aos membros do Projecto de Documentação do GNOME for dado conhecimento dessas marcas registadas, estes nomes estarão todos em maiúsculas ou com a primeira letra de cada palavra em maiúscula.

O DOCUMENTO E VERSÕES ALTERADAS DO DOCUMENTO SÃO DISPONIBILIZADOS SOB OS TERMOS DA LICENÇA DE DOCUMENTAÇÃO LIVRE GNU COM A COMPREENSÃO ADICIONAL DE QUE:

1. ESTE DOCUMENTO É DISPONIBILIZADO NUMA BASE "TAL COMO ESTÁ", SEM QUALQUER GARANTIA DE QUALQUER TIPO, NEM EXPRESSA NEM IMPLÍCITA, INCLUINDO, MAS SEM LIMITAR, GARANTIAS DE QUE O DOCUMENTO OU VERSÃO ALTERADA DO DOCUMENTO SE ENCONTRA LIVRE DE DEFEITOS PARA COMERCIALIZAÇÃO, ADEQUADO A UM PROPÓSITO ESPECÍFICO OU QUE NÃO INFRINJA. A TOTALIDADE DO RISCO DE QUALIDADE, PORMENORIZAÇÃO, E DESEMPENHO DO DOCUMENTO OU VERSÃO ALTERADA DO DOCUMENTO É SUA. CASO ALGUM DOCUMENTO OU VERSÃO ALTERADA SE DEMONSTRE DEFICIENTE EM QUALQUER ASPECTO, O LEITOR (E NÃO O AUTOR INICIAR, OU QUALQUER CONTRIBUINTE POSTERIOR) ASSUME O CUSTO DE TODO O SERVIÇO DE REPARAÇÃO, ASSISTÊNCIA OU CORRECÇÃO QUE POSSE SER NECESSÁRIO. ESTA DESRESPONSABILIZAÇÃO DE GARANTIA CONSTITUI UMA PARTE ESSENCIAL DESTA LICENÇA. NENHUMA UTILIZAÇÃO DE QUALQUER DOCUMENTO OU VERSÃO ALTERADO DO DOCUMENTO SE ENCONTRA AUTORIZADA EXCEPTO SE SUJEITA A ESTA DESRESPONSABILIZAÇÃO; E

2. SOB QUAISQUER CIRCUNSTÂNCIAS E TEORIA LEGAL, QUER SEJA POR ERRO (INCLUINDO NEGLIGÊNCIA), CONTRATO, OU QUALQUER OUTRO MOTIVO, PODERÁ O AUTOR, ESCRITOR INICIAL, QUALQUER CONTRIBUINTE, OU QUALQUER DISTRIBUIDOR DO DOCUMENTO OU VERSÃO ALTERADA DO DOCUMENTO, OU QUALQUER FORNECEDOR DE UMA DESSAS PARTES, SER RESPONSÁVEL PERANTE QUALQUER PESSOA POR QUAISQUER DANOS DIRECTOS, INDIRECTOS, ESPECIAIS, ACIDENTAIS OU CONSEQUENCIAIS DE QUALQUER TIPO INCLUINDO, SEM LIMITAR, DANOS POR PERCA DE BOM NOME (GOODWILL), PARAGENS DE TRABALHO, FALHA OU MAU FUNCIONAMENTO INFORMÁTICO, OU QUALQUER E TODOS OS OUTROS DANOS OU PERCAS DECORRENTES OU RELACIONADAS COM A UTILIZAÇÃO DO DOCUMENTO E VERSÕES ALTERADAS DO DOCUMENTO, MESMO QUE TAL PARTE TENHA SIDO INFORMADA DA POSSIBILIDADE DE OCORREREM TAIS DANOS.

Vincent
Alexander
Projecto de Documentação do GNOME
Don
Scorgie
Projecto de Documentação do GNOME
Brent
Smith
Projecto de Documentação do GNOME
Sun
Equipa de Documentação do Sistema de Trabalho Java
Sun Microsystems, Inc.
GNOME 2.24 Desktop Accessibility Guide V2.24.0
September 2008

Projecto de Documentação do GNOME

Projecto de Documentação do GNOME

GNOME 2.24 Desktop Accessibility Guide V2.24.0
September 2008

Projecto de Documentação do GNOME

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.10 V2.10.1
Julho de 2005

Equipa da Sun de Documentação do Sistema de Trabalho Java

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.10 V2.10.0
Março de 2005

Equipa da Sun de Documentação do Sistema de Trabalho Java

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.8 V2.8.0
Setembro de 2004

Equipa da Sun de Documentação do Sistema de Trabalho Java

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.6 V2.6.0
Março de 2004

Sun Microsystems

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.4 V2.4.0
Outubro de 2003

Sun Microsystems

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.2 V2.2.0
Fevereiro de 2003

Sun Microsystems

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.0 para o Sistema Operativo Solaris V2.1
Janeiro de 2003

Sun Microsystems

Projecto de Documentação do GNOME

Guia de Acessibilidade do Ambiente de Trabalho GNOME 2.0 para o Sistema Operativo Solaris V2.0
Dezembro de 2002

Sun Microsystems

Projecto de Documentação do GNOME

This manual describes version 2.24 of the GNOME Desktop.

## Comentários

To report a bug or make a suggestion regarding the GNOME Desktop or this manual, follow the directions in the GNOME Feedback Page.

## Introdução à Acessibilidade

Este capítulo faz uma introdução à acessibilidade no Ambiente de Trablho GNOME.

Todos os produtos de "software" deverão incorporar funcionalidades de acessibilidade permitindo às pessoas com limitações utilizar essas aplicações fácil e eficientemente. Legislação recente tal como a Secção 508 do "U.S. Rehabilitation Act" tornou mais visível a necessidade de serem disponibilizadas aplicações acessíveis.

The GNOME Desktop is easy to use and incorporates many accessibility features. Every supported application and utility in the GNOME Desktop is designed with accessibility and usability in mind. Users with physical disabilities such as low vision or impaired motor skills can use all of the functionality of the GNOME Desktop thanks to the customization tools that are available. These customization tools enable you to fine-tune the appearance and behavior of the desktop.

The ability to easily customize the GNOME Desktop contributes greatly to the accessibility of the desktop. This guide describes the various options available to meet your particular needs.

### Quick Reference

To jump to a specific topic, follow these quick reference links:

To hear screen elements spoken to you, see the Orca section.

If you need large print, read about Choosing Themes and Customizing Fonts.

To have some or all of the screen magnified, see the Magnifier section.

If you prefer a pointing device over the keyboard, you can configure an on-screen keyboard for point-and-click typing; see the GNOME Onscreen Keyboard (gok) section.

If you can only press one key at a time, see the Sticky Keys portion of the Configuring an Accessible Keyboard section.

If you tend to press keys for too long a time (normally causing inadvertant extra keys), see the Slow Keys portion of the Configuring an Accessible Keyboard section.

If you tend to press keys multiple times (normally causing inadvertant extra keys), see the Bounce Keys portion of the Configuring an Accessible Keyboard section.

For further mouse- or pointer-based accessibility support, see the MouseTweaks and Configuring an Accessible Keyboard sections. These tools supply several accessibility aids for pointer devices and keyboards.

## Dicas Gerais de Acessibilidade

Algumas das tecnologias podem ser úteis para pessoas com diferentes tipos de incapacidade. Estas são abordadas nesta secção. Em especial:

- Essential Keyboard Commands - covers some basic keyboard commands.

- Keyboard Desktop Navigation - allows users to navigate the desktop without using a mouse or pointer device.

- Accessible Login - users can configure the login screen to be more accessible.

### Essential Keyboard Commands

Before moving forward, be sure you are familiar with these essential GNOME commands:

Alt F1 [Debian] - display and activate the GNOME Desktop menu bar. This grants access to the Applications, Places and System menu bar items.

For Solaris and Windows systems, this key is Ctrl Esc.

Alt F2 or Meta R - summons the Run dialog, where you can issue terminal commands with or without parameters. If a file needs to be passed as one of these parameters, use the Run With File button to easily locate the file needed. This dialog also presents an alternate list of known applications which may be easier to navigate than the Debian system desktop menu (Alt F1) approach.

For Solaris systems, this key is Meta R (as with Microsoft Windows). A meta- or super-key is an OS-logo shift key.

Tab and Shift Tab - move focus within an application between controls; use Tab to cycle forward through controls and Shift Tab to cycle backwards. Controls are any user-interactive element that you can manipulate, such as buttons, drop-down lists, text fields, etc. Ctrl Tab and Shift Ctrl Tab are used instead where Tab and Shift Tab are reserved for use by the focused control.

Alt Tab and Shift Alt Tab - switches between currently running applications. If you have multiple programs running, use Alt Tab to cycle forward through the applications and Shift Alt Tab to cycle backwards. Alt Esc and Shift Alt Esc also cycle between applications, but without an application preview window.

### Início de Sessão Acessível

The GNOME Desktop includes an Accessible Login feature, enabling users to:

- Iniciar uma sessão no ambiente de trabalho mesmo se o utilizador não consegue facilmente utilizar de forma normal o ecrã, rato ou teclado.

- Launch assistive technologies at login time by associating a user action with an assistive technology application. The user can perform the user action from the standard keyboard, or from a keyboard, pointing device, or switch device that is attached to the USB or PS/2 mouse port. These user actions are called gestures.

- Change the visual appearance of the login dialog before the user logs in; for example, using a high-contrast theme for better visibility.

Accessible login features are presently 100% functioning for Solaris only.

#### Enabling Accessible Login

In order to use the accessibility support for GNOME, the accessibility infrastructure must be enabled. To enable GNOME accessibility features from the command line, type the following command and then log out:

`gconftool-2 --set "/desktop/gnome/interface/accessibility" --type boolean "True"`

To enable GNOME accessibility features from a GUI, run the System Preferences Assistive Technology command from the top level menu. Select the "Enable assistive technologies" checkbox and then press the "Close and Log Out" button.

The next time you log in, assistive technology support will be enabled for the desktop.

To configure GDM by using the GUI (the preferred method), perform the following steps:

1. Inicie uma sessão com o utilizador `root`.

2. Run gdmsetup from a terminal; you may be advised to reboot after exiting the application.

To configure GDM if you cannot access the GUI environment, you will need to navigate the file system and modify files:

1. Inicie uma sessão com o utilizador `root`.

2. Open the file `/etc/X11/gdm/custom.conf`

3. Procure no ficheiro a seguinte linha:

   `#AddGtkModules=false`

   e substitua a linha pela seguinte:

   `AddGtkModules=true`

   Este passo activa os Módulos Gtk.

4. Procure no ficheiro a seguinte linha:

   `#GtkModulesList=gail:atk-bridge:dwellmouselistener:keymouselistener`

   e apague o `#` do início da linha por forma a que esta fique igual a:

   `GtkModulesList=gail:atk-bridge:dwellmouselistener:keymouselistener`

   The above lines must be displayed as single lines in the `custom.conf` file without line breaks. The formatting of this guide may display the lines as being longer than two lines.

   This step loads all of the GtkModules to enable assistive technologies such as On-Screen Keyboard and Screen Reader and Magnifier . You can edit the line above further to load only the GtkModules that you require to support the user base. For example:

   - If you need to use the Screen Reader and Magnifier, include `gail` and `atk-bridge`.

   - If you need to use a pointing device without buttons or switches, include `gail`, `atk-bridge` and `dwellmouselistener`.

   - Se utilizar dispositivos de apontar com interruptores, teclados físicos alternativos, ou dispositivos de interruptores e botões, inclua o `keymouselistener`.

   - On-Screen Keyboard can operate without `gail` and `atk-bridge`, but with a reduced feature set.

   Para uma acessibilidade ideal, inclua o `gail` e o `atk-bridge`.

5. Save the `/etc/X11/gdm/custom.conf` file.

   If you make any changes to the `/etc/X11/gdm/custom.conf` file after you enable GDM, you can execute the following command to restart GDM and activate the changes:

   `gdm-restart`

6. Edite o ficheiro `/etc/group` e acrescente o seguinte à linha `audio`:

   `,gdm`

   Este passo certifica-se que a locução irá funcionar com o GDM.

7. Reinice o seu computador.

Xserver is required for all distributions; for Linux and OpenSolaris, it should be Xorg. You can find them in both `/etc/X11` and `/usr/bin`. Generally for Linux there will be a symbol link in `/etc/X11/X` and it is always linked to the binary `Xorg` in `/usr/bin/Xorg`. For OpenSolaris, you can find this process with the command `ps -ef | grep X`.

To enable or disable Xorg extensions, you can edit the file `/etc/X11/xorg.conf` and add the following parameters to enable different extensions:

    Section "Extensions"
      Option "Composite"         "Enable"
      Option "other extensions"  "Enable/Disable"
    EndSection

#### Starting Assistive Technologies at Login

Se ler os Módulos Gtk `keymouselistener` e `dwellmouselistener` no ficheiro de configuração do GDM, poderá atribuir acções de utilizadores para iniciar tecnologias assistivas específicas no início de sessão. Estas acções de utilizadores são denominadas de gestos. As associações de gestos estão contidas nos seguintes ficheiros de configuração do GDM:

- `/etc/X11/gdm/modules/AccessKeyMouseEvents`

- `/etc/X11/gdm/modules/AccessDwellMouseEvents`

Caso altere estes ficheiros, terá de reiniciar o seu sistema para que estas alterações tenham efeito.

As secções seguintes contêm exemplos de gestos que pode adicionar aos ficheiros de configuração do GDM.

The gestures must be contained in a single line in the `AccessKeyMouseEvents` file without line breaks. The formatting of this guide might display the examples in the following sections across multiple lines.

##### Starting the Screen Reader Using a Keyboard Shortcut

Edit the `AccessKeyMouseEvents` file to associate keyboard shortcuts with assistive technologies. For example, the following lines enable you to press and hold Ctrl S or Ctrl M for one second to either start speech or magnification:

`<Control>s 1 1000 10000 /usr/bin/orca -n -d main-window`

`<Control>m 1 1000 10000 /usr/bin/orca -n -d main-window -e magnifier`

##### Starting On-Screen Keyboard Using a Switch or Button Gesture

Edite o ficheiro `AccessKeyMouseEvents` para associar gestos de interruptor, tecla ou botão a tecnologias assistivas. Visto que o dispositivo de introdução principal da maioria dos utilizadores do Teclado no Ecrã é um interruptor ou botão, esta é uma boa forma de permitir aos utilizadores iniciar o Teclado no Ecrã no início de sessão.

Se existir a tendência de um utilizador iniciar uma aplicação inadvertidamente, poderá associar os gestos com múltiplas pressões do interruptor ou durações mínimas. Por exemplo, a linha seguinte inicia o Teclado no Ecrã em modo inverso de análise quando o utilizador prime o interruptor definido como Interruptor 2 três vezes no espaço de dois segundos, com um mínimo de 100 milisegundos por pressão:

`<Switch2>3 100 2000 gok --login --accessmethod=inversescanning --scan-action=switch1 --select-action=switch2`

Utilizadores que utilizam apenas um interruptor poderão preferir iniciar o Teclado no Ecrã em modo de análise automática. A linha seguinte inicia o Teclado no Ecrã em modo de análise automática quando o utilizador prime o interruptor num dispositivo de acesso alternativo durante mais de quatro segundos:

`<Switch>1 4000 5000 gok --login --accessmethod=automaticscanning --scan-action=switch1 --select-action=switch1`

For information about the On-Screen Keyboard operating modes, see the online help for On-Screen Keyboard.

##### Starting On-Screen Keyboard Using a Motion-Only Gesture

Pode definir gestos que involvam apenas o movimento de um dispositivo de apontar tal como um rato, ou um dispositivo alternativo de apontar, tal como um apontador bocal ou trackball. A sintaxe do gesto não muda consoante esteja a utilizar um rato ou um dispositivo de apontar alternativo. Edite o ficheiro `AccessKeyMouseEvents` para associar gestos de movimento com as tecnologias assistivas.

If the `dwellmouselistener` GtkModule is loaded, alternative pointing devices are temporarily latched to the core pointer. This means that if the user moves the alternative pointing device, the on-screen pointer moves.

For example, the following line starts On-Screen Keyboard in dwell mode when the user moves the on-screen pointer from inside the login dialog through the top edge, back into the dialog through the top edge, out of the dialog through the left edge, back into the dialog through the left edge, and similarly through the bottom and right edges of the dialog in a cross pattern:

`TTLLBBRR O 10000 gok --login --access-method=dwellselection --input-device=MOUSE[3]`

Note que o parâmetro `--input-device` especificado no gesto tem de coincidir com o nome de um dispositivo de introdução extendido, tal como um apontador bocal ou trackball, tal como especificado em `/etc/X11/XF86Config`.

#### Requisitos Adicionais para um Início de Sessão Acessível

To enable the Accessible Login feature to use alternative pointing devices and switch devices such as sip-and-puff switches, wheelchair-mounted switches or trackballs, you might need to modify your X server system configuration to recognize these devices. You can use most devices that emulate mouse buttons with the Accessible Login feature and On-Screen Keyboard, including USB single switches and mouse-like pointing devices.

You should not configure an alternative input device to control the primary on-screen pointer. This might result in undesirable behavior or cause situations from which the user of the alternate input device cannot recover without using the primary keyboard or mouse. To prevent this problem, remove any occurrences of the attributes `SendCore` or `AlwaysCore` from any of the `InputDevice` lines in the X Server configuration file.

### Navegação no Ambiente com o Teclado

Esta secção descreve como navegar no Ambiente de Trabalho GNOME apenas com o teclado. Utilizadores que tenham dificuldade em utilizar o rato ou outro dispositivo de apontar podem navegar e utilizar o ambiente a partir do teclado.

#### Introdução à Navegação com o Teclado

Esta secção descreve os atalhos de teclado essenciais que lhe permitem navegar no ambiente de trabalho a partir do teclado.

Pode personalizar alguns dos atalhos de teclado descritos neste capítulo. O texto indica os atalhos que pode personalizar. Consulte para informações sobre como personalizar os atalhos de teclado.

##### Atalhos de Teclado Essenciais

A tabela seguinte lista os atalhos de teclado essenciais que pode utilizar para navegar no ambiente de trabalho. Os atalhos de teclado utilizados para navegar eme elementos e controlos específicos estão descritos nas secções adequadas deste capítulo.

Teclas | Função
--- | ---
Tab | Transmitir o foco para o elemento ou controlo seguinte.
Shift Tab | Inverter a direcção de navegação e transmitir o foco ao elemento ou controlo anterior. Em geral, a tecla Shift inverte a direcção de navegação.
Ctrl Tab | Give focus to the next element or control if the Tab key has a specific purpose in a control. For example, if you press Tab in a text box, the system inserts a tab space. Para transmitir o foco ao elemento ou controlo anterior, prima Shift Ctrl Tab.
teclas de setas | Navegar dentro de um elemento ou controlo.
barra de espaços | Activar o elemento ou controlo que tem o foco. Por exemplo, se o controlo actual for um botão, esta acção equivale a clicar no botão com o rato.
Esc | Fechar uma janela, menu ou gaveta.
F7 | Switch to caret navigation mode. In computing, caret navigation is a kind of keyboard navigation where a caret (also known as "text cursor", "text insertion cursor", or "text selection cursor") is used to navigate and select text within a document. For more information about caret navigation mode, see .

##### Atalhos de Teclado Globais

A tabela seguinte lista os atalhos de teclado que pode utilizar a partir de qualquer parte do Ambiente de Trabalho GNOME.

Teclas | Função
--- | ---
Alt F1 | Abre o Menu Principal de Aplicações. Pode personalizar este atalho de teclado. For Solaris systems, this key is Ctrl-Esc (as with Microsoft Windows).
Alt F2 | Open the Run Application dialog. Pode personalizar este atalho de teclado. For Solaris systems, this key is Meta-R (as with Microsoft Windows). A meta- or super-key is an OS-logo shift key.
Print Screen | Inicia a aplicação de capturas de ecrã e faz uma captura do ecrã completo. Pode personalizar este atalho de teclado.
Alt Print Screen | Inicia a aplicação de capturas de ecrã e faz uma captura da janela que actualmente tem o foco. Pode personalizar este atalho de teclado.
F1 | Se o elemento com o foco for uma janela ou diálogo de uma aplicação, este atalho de teclado abre a Ajuda dessa aplicação.
Ctrl F1 | Se o elemento com o foco for um painel ou janela de aplicação, este atalho de teclado alterna a apresentação ou não de dicas da janela ou painel.
Shift F10 | Open a popup menu for the element that has focus (if a popup menu exists for that element).

#### Navegar no Fundo da Área de Trabalho

O fundo da área de trabalho é a parte do Ambiente de Trabalho GNOME onde não existem itens de interface nem aplicações, tais como painéis e janelas. A tabela seguinte lista os atalhos de teclado que pode utilizar para navegar pelos objectos existentes no fundo da área de trabalho. Um objecto no fundo da área de trabalho é um ícone que pode utilizar para abrir ficheiros, pastas ou aplicações.

Teclas | Função
--- | ---
Ctrl Alt D | Esconder temporariamente todas as janelas e transmitir o foco à área de trabalho. Para revelar as janelas, prima Ctrl Alt D novamente. Pode personalizar este atalho de teclado. For Solaris systems, this key is Meta-D (as with Microsoft Windows). A meta- or super-key is an OS-logo shift key.
Ctrl Alt Tab | Display a popup window with icons that represent the desktop background and the panels. Press and hold Ctrl Alt and continue to press Tab to switch the focus between the desktop background and the panels. Pode personalizar este atalho de teclado.
teclas de setas | Give focus to a neighboring desktop background object (if the desktop has focus).
A sequence of characters that matches the first n characters of a desktop background object name. | If the desktop background has focus, give focus to the desktop background object whose name starts with the specified sequence of characters.
F2 | Renomeia o objecto de área de trabalho que tem o foco.
Shift F10 | Abre o menu de contexto do objecto de área de trabalho que tem o foco.
Ctrl F10 | Abre o menu Fundo da Área de Trabalho.

#### Navegar nos Painéis

Um painel é uma área a partir da qual pode executar aplicações especiais e aplicações de painel. O painel mais comum é o painel que se estica a toda a largura da margem inferior do ambiente de trabalho. A tabela seguinte lista os atalhos de teclado que pode utilizar para navegar nos painéis e seus objectos.

Teclas | Função
--- | ---
Ctrl Alt Tab | Give focus to a panel. This keyboard shortcut displays a popup window with icons that represent the desktop background, panels, and drawers. Press and hold Ctrl Alt and continue to press Tab to switch the focus between the desktop background, panels, and drawers. If you're especially dexterous, you can add Shift to go in reverse. Pode personalizar este atalho de teclado.
Tab | Transmite o foco ao objecto seguinte no painel.
F10 | Open the Applications menu when the Menu Panel has focus. Continue to press F10 to switch focus between the Applications menu and the window list. This key behavior may alter slightly depending on context and specific user setup.
barra de espaços | Activate a panel object; for example, open a menu or start a launcher (icon shortcut).
Shift F10 | Abre o menu de contexto do objecto de painel.
Ctrl F10 | Abre o menu de contexto do painel.

##### Moving Panel Objects

Pode mover um objecto de painel que tenha o foco para uma localização diferente no painel ou gaveta, ou pode mover o objecto para o painel seguinte. Para mover um objecto de painel, realize os seguintes passos:

1. Prima Tab para transmitir o foco ao objecto.

2. Prima Shift F10 para abrir o menu de contexto do objecto de painel.

3. Use the arrow keys to select the Move menu item.

4. Use the keyboard shortcuts that are listed in the following table to perform the move operation:

   Teclas | Função
   --- | ---
   teclas de setas | Move the object left/right on a horizontal panel, or up/down on a vertical panel.
   Shift + teclas de setas | Move the object with focus, pushing any other objects encountered.
   Ctrl + teclas de setas | Move the object, swapping positions with any other objects that you encounter in the move.
   Tab | Move o objecto para o painel seguinte.
   barra de espaços | Termina a operação de mover.

The following examples demonstrate the effect of different move operations on the objects in a panel:

Ilustração | Descrição
--- | ---
Portion of a panel with three objects displayed in the following order from left to right: Geyes icon, Volume Control icon, and Ajuda icon. | Show a panel with three panel objects before a move operation takes place.
Portion of a panel with three objects displayed in the following order from left to right: Geyes icon, Volume Control icon, and Ajuda icon. | Apresenta o efeito da utilização das teclas de setas para mover a aplicação de painel Geyes no painel. Pode utilizar as teclas de setas para mover a aplicação de painel para a esquerda ou direita até que colida com o objecto de painel seguinte.
Portion of a panel with three objects displayed in the following order from left to right: Geyes icon, Volume Control icon, and Ajuda icon. | Shows the effect of using Shift + arrow keys to move the Geyes panel application on the panel. You can use the Shift + arrow keys to push the Volume Control and Help panel objects ahead of the object that you are moving.
Portion of a panel with three objects displayed in the following order from left to right: Volume Control icon, Ajuda icon, and Geyes icon. | Shows the effect of using Ctrl + arrow keys to move the Geyes panel application on the panel. You can use the Ctrl + arrow keys to swap positions with the Volume Control and Help panel objects as you meet the objects.

Panel applications that are Locked cannot be moved. To unlock a panel application, use the panel object menu and deselect the Lock to Panel option.

##### Navigating Drawers

Uma gaveta é uma extensão de um painel que pode ser recolhida. A tabela seguinte lista os atalhos de teclado que pode utilizar para entrar e sair das gavetas. Quando abre uma gaveta, pode navegar pelo seu conteúdo da mesma forma que navega num painel. Consulte para informações sobre como navegar num painel.

Teclas | Função
--- | ---
barra de espaços | Abre ou fecha a gaveta que tem o foco.
teclas de setas | Entra na gaveta que tem o foco.
Esc | Fecha a gaveta e transmite o foco para o objecto de gaveta no painel.

##### Navigating Panel Menus

The following table lists the keyboard shortcuts that you can use to navigate menus on panels:

Teclas | Função
--- | ---
barra de espaços | Abre o menu que tem o foco.
teclas de setas | Navega pelo menu.
barra de espaços | Selecciona um item de menu.
Shift F10 | Open the popup menu associated with a menu item (if one exists).
Esc | Fecha um menu.

##### Navigating Panel Applications

Uma aplicação de painel é uma pequena aplicação que reside num painel. Pode navegar para todas as aplicações de painel e abrir os seus menus de contexto utilizando o teclado. No entanto, se a aplicação de painel não tiver controlos aos quais possa transmitir o foco, não poderá navegar através dos controlos da aplicação de painel. A tabela seguinte lista os atalhos de teclado que pode utilizar para navegar através das aplicações de painel.

Teclas | Função
--- | ---
barra de espaços | Activa o controlo da aplicação de painel que tem o foco, se aplicável. Nem todas as aplicações de painel contêm controlos que possa activar. Se a aplicação de painel não contiver um controlo que possa activar, a barra de espaço não terá qualquer funcionalidade.
teclas de setas | Navegar pelos controlos da aplicação de painel.
Shift F10 | Abre o menu de contexto da aplicação de painel. Para navegar pelo menu, utilize os atalhos de teclado padrão de navegação em menus. Consulte para informações sobre como navegar por menus.

#### Navigating Workspaces

A workspace is a discrete area in which you can work. You can have many workspaces on your desktop and you can switch from one workspace to another. Each workspace can contain different windows and processes. The following table lists the keyboard shortcuts that you can use to navigate workspaces:

Teclas | Função
--- | ---
Ctrl Alt + teclas de setas | Transmite o foco para a área de trabalho seguinte ou anterior. Este atalho de teclado apresenta uma janela de popup com ícones que representam áreas de trabalho. Prima e mantenha Ctrl Alt e continue a premir a tecla de seta para alternar o foco entre as várias áreas de trabalho. Pode personalizar este atalho de teclado.
Ctrl Shift Alt + teclas de setas | Move a janela que tem o foco para a área de trabalho seguinte ou anterior. Pode personalizar este atalho de teclado.

#### Navegar pelas Janelas

As secções seguintes descrevem os atalhos de teclado que pode utilizar para navegar pelas janelas. Uma janela é uma moldura rectângular no seu ecrã onde é apresentada uma aplicação.

Pode personalizar todos os atalhos de teclado que estão associados à navegação pelas janelas. Consulte para mais informações.

##### Giving Focus to Windows

Before you can use or modify a window, you must give focus to the window. The following table lists the keyboard shortcuts that you can use to give focus to a window:

Teclas | Função
--- | ---
Alt Tab | Display a popup window with icons that represent each window. Press and hold Alt and continue to press Tab to move through the windows until you reach the window you want to have focus.
Alt Esc | Raise each window in turn until you reach the window you want.
Alt F6 | Cycle between windows belonging to the current application (eg, a multiple document interface application like Text Editor).

##### Controlling Windows

When a window has focus, you can perform various actions on the window. The following table lists the keyboard shortcuts that you can use to control the window that has focus:

Teclas | Função
--- | ---
Alt barra de espaços | Open the Window menu.
Alt F4 | Fecha a janela.
Solaris: Abrir Linux:Alt F9 | Minimiza a janela.
Alt F10 | Maximiza a janela.
Alt F5 | Restore a maximized window to its original size.

##### Moving Windows

When a window has focus, you can move the window around the screen. The following table lists the keyboard shortcuts that you can use to move a window:

Teclas | Função
--- | ---
Alt F7 | Inicia a operação de movimentação. O ponteiro do rato muda para uma cruz.
teclas de setas | Move a janela 10 pixels de cada vez na direcção da tecla de seta.
Ctrl + teclas de setas | Move a janela um pixel de cada vez na direcção da tecla de seta.
Shift + teclas de setas | Move the window in the direction of the arrow key and align it with the edge of the nearest window, panel or screen edge.
barra de espaços | Complete the move operation, leaving the window in the current position.
Esc | Cancel the move operation, restoring the window to its original position.

##### Resizing Windows

When a window has focus, you can increase or decrease the size of the window. The following table lists the keyboard shortcuts that you can use to resize the window that has focus:

Teclas | Função
--- | ---
Alt F8 | Inicia a operação de redimensionalização.
teclas de setas | Resize the window in the direction of the arrow key.
barra de espaços | Complete the resize operation, leaving the window at the current size.
Esc | Cancel the resize operation, restoring the window to its original size.

##### Navigating Paned Windows

A paned window is a window that is split into two or more panes. Help Browser is an example of an application that uses paned windows.

The following table describes the keyboard shortcuts that you can use to navigate paned/split windows:

Teclas | Função
--- | ---
F6 | Transmite o foco ao painel seguinte. O sistema transmite o foco ao controlo que deteve o foco pela última vez, dentro desse painel.
F8 | Transmite o foco ao primeiro manípulo de redimensionamento na janela. O manípulo de redimensionamento é apresentado entre painéis e permite-lhe redimensioná-los. Prima F8 novamente para transmitir o foco para o manípulo de redimensionamento seguinte.

When the resize handle has focus, you can use the keyboard shortcuts that are listed in the following table to modify the paned window:

Teclas | Função
--- | ---
teclas de setas | Move o manípulo de redimensionamento uma pequena distância.
Ctrl + teclas de setas | Move o manípulo de redimensionamento uma grande distância.
Home | Contract the pane to the minimum size allowed. For vertical panes, reduces the size of the pane to the left of the resize handle to the minimum size allowed. For horizontal panes, reduces the size of the pane above the resize handle to the minimum size allowed.
End | Expand the pane to the maximum size allowed. For vertical panes, increases the size of the pane to the left of the resize handle to the maximum size allowed. For horizontal panes, increases the size of the pane above the resize handle to the maximum size allowed.
barra de espaços | Set the position of the resize handle and return focus to the last control that had focus.
Esc | Reset the position of the resize handle to the original position and return focus to the last control that had focus.

#### Navegar nas Aplicações

An application is any program, utility, or other software package that you run on your desktop. Applications contain standard user interface components:

Janelas

  Uma janela é uma moldura rectângular no seu ecrã que apresenta uma aplicação. Consulte para informações sobre como navegar pelas janelas.

Diálogos

  A dialog is a popup window which displays information or accepts input from the user. See for information about how to navigate dialogs.

Controlos

  A control is any user-interactive screen element. Examples of controls include buttons, check boxes, menus, and text boxes. See for detailed information about how to navigate the different types of controls that are available.

This section of the manual describes the essential keyboard shortcuts that you can use in applications and dialogs.

##### Atalhos de Teclado Essenciais para Navegar nas Aplicações

Since there are so many applications that you can use in the GNOME Desktop, this manual does not describe all the custom keyboard shortcuts that you can use with each individual application. However, the basic keyboard shortcuts are common to many applications.

Access keys are another way to quickly navigate applications with the keyboard. An access key is identified by an underlined letter on a menu or control. In some cases, you must press Alt in combination with the access key to perform an action.

The following table lists the essential keyboard shortcuts that you can use to navigate applications:

Teclas | Função
--- | ---
F10 | Abre o primeiro menu na barra de menu da aplicação.
Alt + tecla de acesso | Abre o menu que está associado à tecla de acesso.
teclas de acesso | Selecciona o item de menu que está associado à tecla de acesso.
seta à esquerda e seta à direita | Alterna o foco entre os menus na barra de menu.
seta acima e seta abaixo | Move o foco para dentro de um menu.
Esc | Close the open menu and give focus to the control that had focus before the menubar.
Ctrl O | Abre o diálogo de selecção de ficheiro.
Ctrl S | Abre o diálogo de Gravar.
Ctrl L | Open a Location dialog, enabling you to type the name of a file that you want to open or save.
Ctrl P | Open a Print dialog, if available.
Ctrl C | Copy highlighted text to the global, application-spanning clipboard.
Ctrl X | Cut highlighted text to the global, application-spanning clipboard.
Ctrl V | Paste text from the global, application-spanning clipboard to the current cursor position.

##### Atalhos de Teclado Essenciais para Navegar em Diálogos

The following table lists the essential keyboard shortcuts that you can use to navigate dialogs:

Teclas | Função
--- | ---
Alt tecla de acesso | Activa ou selecciona um controlo.
Tab | Transmite o foco ao controlo seguinte.
Ctrl Page up | Move to the next page/tabbed section of the dialog.
Ctrl Page Down | Move to the previous page/tabbed section of the dialog.
Esc | Cancel/dismiss the dialog. Some application-specific dialogs may retain dialog settings, but this practice is discouraged. These dialogs usually have a single Close button, with no Ok/Accept buttons.
Enter | Perform the default action for the dialog. The default action will usually apply any changes and close the dialog. A default button will have a bold outline and a selected button will have a slightly bolder outline than the default button.

#### Navegar no Gestor de Ficheiros

By default, the file manager operates in Spatial mode. This mode uses separate windows for each folder. Conversely, Browser mode will reuse the same window for each folder.

For more information about different modes for the file manager, see the user guide.

##### Navigating Folders

The following table describes the keyboard shortcuts that enable you to navigate folders in the file manager:

Teclas | Função
--- | ---
teclas de setas | Selecciona o ficheiro ou pasta seguinte ou anterior na direcção da tecla de seta.
Ctrl + teclas de setas | Give focus to the next or previous file or folder but do not select the item. This allows multiple, non-contiguous blocks of files to be selected.
barra de espaços | Abre o ficheiro ou pasta com o foco.
Ctrl + barra de espaços | Selecciona o item que actualmente detém o foco.
A sequência de caracteres que coincide com os primeiros n caracteres do nome de um ficheiro. | Selecciona o primeiro ficheiro ou pasta cujo nome começa pela sequência de caracteres especificada.
Home | Selecciona o primeiro ficheiro ou pasta dentro da pasta actual.
End | Selecciona o último ficheiro ou pasta dentro da pasta actual.
backspace | Abre a pasta acima da pasta actual.
Shift-F10 | Open a file or folder popup menu.
Ctrl-F10 | Open the enclosing folder's popup menu (equivalent to right-clicking on the view pane background).

##### Navigating Browser Window Components

When operating in Browser mode, the file manager window contains several components, with keyboard shortcuts defined to navigate each component:

Teclas | Função
--- | ---
F6 | Alterna o foco entre o painel lateral e o painel de vista.
Shift F10 | Abre o menu de contexto do painel lateral.

#### Caret Navigation Mode

The following table describes how to use caret navigation mode (eg, in supporting applications like Yelp, Evolution, Epiphany, or Firefox). In computing, caret navigation is a kind of keyboard navigation where a caret (also known as "text cursor", "text insertion cursor", or "text selection cursor") is used to navigate and select text within a document.

Teclas | Função
--- | ---
F7 | Switch to caret navigation mode [Yelp-only].
seta à esquerda | Move um caracter para a esquerda.
seta à direita | Move um caracter para a direita.
seta acima | Move uma linha acima.
seta abaixo | Move uma linha abaixo.
Ctrl + seta à esquerda | Move para o inícion da palavra anterior.
Ctrl + seta à direita | Move para o final da palavra seguinte.
Page up | Rola acima uma página de conteúdo.
Page Down | Rola abaixo uma página de conteúdo.
Home | Move para o início da linha actual.
End | Move para o final da linha actual.
Shift + teclas de setas | Move from the current position to the destination position, selecting all text between the two positions.
Tab | Move o foco para o controlo passível de deter o foco seguinte.
Shift Tab | Move o foco para o controlo passível de deter o foco anterior.
Enter | Activate a button, link or other control.

#### Navegar pelos Elementos e Controlos Base

As secções seguintes descrevem como navegar e utilizar os elementos e controlos base do interface de utilizador, utilizando o teclado.

##### Navigating Menus

The following table lists the keyboard shortcuts that you can use to navigate menus:

Teclas | Função
--- | ---
seta acima e seta abaixo | Transmite o foco ao item de menu seguinte ou anterior, num menu.
seta à direita | Se o item de menu que detiver o foco for um submenu, abre o submenu e transmite o foco ao primeiro item de menu nesse submenu. Se o item de menu que detiver o foco não for um submenu, abre o menu seguinte na barra de menu.
seta à esquerda | Se o item de menu que detiver o foco for um item de submenu, alterna o foco de volta ao submenu. Se o item de menu que detiver o foco não for um submenu, abre o menu anterior na barra de menu.
Enter | Selecciona o item de menu actual e fecha os menus abertos.
tecla de acesso | Select the menu item that is associated with the access key and close the menu.
barra de espaços | Select the focused menu item and close the menu except when the menu item is a check box or radio button.
Esc | Close the menu.

##### Navigating Buttons

Um botão é um controlo que utiliza para iniciar uma acção. A maioria dos botões são rectangulares e contêm uma etiqueta de texto.

###### Botão Exemplificativo

Botão de fechar.

The following table lists the keyboard shortcuts that you can use to navigate buttons:

Teclas | Função
--- | ---
barra de espaços | Activa o botão que detém o foco. É o equivalente a clicar no botão.
Enter | Activa o botão que detém o foco ou, se nenhum o detiver, realiza a acção por omissão do diálogo.

##### Navigating Radio Buttons

Um botão de selecção exclusiva é um controlo que lhe permite seleccionar uma de várias opções mutuamente exclusivas.

###### Botão de Selecção Exclusiva Exemplificativo

Dois botões de selecção exclusiva exemplificativos.

The following table lists the keyboard shortcuts that you can use to navigate a set of radio buttons:

Teclas | Função
--- | ---
teclas de setas | Seleccionar o botão de selecção exclusiva seguinte ou anterior e retirar a selecção aos restantes botões do grupo.

##### Navigating Check Boxes

Uma caixa de selecção é um controlo que lhe permite seleccionar ou remover a selecção de uma opção.

###### Caixa de Selecção Exemplificativa

Caixa de selecção exemplificativa.

The following table lists the keyboard shortcuts that you can use to navigate a check box:

Teclas | Função
--- | ---
barra de espaços | Selecciona ou retira a selecção na caixa de selecção.

##### Navigating Text Boxes

Caixas de texto são controlos onde pode introduzir texto.

###### Caixa de Texto de Linha Única Exemplificativa

Caixa de texto exemplificativa com apenas uma linha de introdução.

The following table lists the keyboard shortcuts that you can use to navigate a single line text box:

Teclas | Função
--- | ---
seta à esquerda | Posiciona o cursor um caracter para a esquerda.
seta à direita | Posiciona o cursor um caracter para a direita.
Ctrl seta à esquerda | Position the cursor at the start of the current word. Press and hold Ctrl and continue to press left arrow to position the cursor at the start of the previous word.
Ctrl seta à direita | Position the cursor at the end of the current word. Press and hold Ctrl and continue to press right arrow to position the cursor at the end of the next word.
Home | Posiciona o cursor no início da linha.
End | Posiciona o cursor no final da linha.
Shift seta à esquerda ou seta à direita | Selecciona um caracter de cada vez à esquerda ou direita do cursor.
Shift Ctrl left arrow or right arrow | Selecciona uma palavra de cada vez à esquerda ou direita do cursor.
Shift Home | Selecciona todo o texto à esquerda do cursor.
Shift End | Selecciona todo o texto à direita do cursor.
Ctrl A | Selecciona todo o texto da caixa de texto.

In addition to the keyboard shortcuts listed in the previous table, use the keyboard shortcuts in the following table to navigate multi-line text boxes:

Teclas | Função
--- | ---
Page up | Posiciona o cursor no topo da vista actual. Prima Page Up novamente para posicionar o cursor no topo da vista anterior.
Page Down | Posiciona o cursor no fundo da vista actual. Prima Page Down novamente para posicionar o cursor no fundo da vista seguinte.
Ctrl seta acima | Position the cursor at the start of the current paragraph. Press and hold Ctrl and continue to press the up arrow key to position the cursor at the start of the previous paragraph.
Ctrl seta abaixo | Position the cursor at the end of the current paragraph. Press and hold Ctrl and continue to press the down arrow key to position the cursor at the end of the next paragraph.
Ctrl Page up | Move o cursor à esquerda a distância de uma vista.
Ctrl Page Down | Move o cursor à direita a distância de uma vista.
Ctrl Home | Posiciona o cursor no início da caixa de texto.
Ctrl End | Posiciona o cursor no final da caixa de texto.
Ctrl Tab | Transmite o foco ao controlo seguinte no diálogo.
Shift Page up | Select the text to the start of the current view. Press and hold Shift and continue to press Page Up to extend the selection to the start of the previous view.
Shift Page Down | Select the text to the end of the current view. Press and hold Shift and continue to press Page Down to extend the selection to the end of the next view.
Shift Home | Selecciona o texto até ao início da linha.
Shift End | Selecciona o texto até ao final da linha.
Shift Ctrl seta acima | Selecciona o texto até ao início do parágrafo, depois até ao início do parágrafo anterior.
Shift Ctrl seta abaixo | Selecciona o texto até ao final do parágrafo, depois até ao final do parágrafo seguinte.
Shift Ctrl Home | Selecciona o texto até ao início da caixa de texto.
Shift Ctrl End | Selecciona o texto até ao final da caixa de texto.

##### Navigating Spin Boxes

Uma caixa de rotação é um controlo que lhe permite introduzir um valor numérico ou seleccionar um valor a partir de uma lista que contém todos os valores possíveis.

###### Caixa de Rotação Exemplificativa

Caixa de rotação exemplificativa. Contém uma caixa de texto e setas acima e abaixo.

The keyboard shortcuts that you use to navigate the text box area of a spin box are listed in . The following table lists the keyboard shortcuts that you can use to navigate the up and down arrows in the spin box:

Teclas | Função
--- | ---
seta acima ou seta abaixo | Aumenta ou reduz o valor da caixa de rotação numa quantidade pequena.
Page Up ou Page Down | Aumenta ou reduz o valor da caixa de rotação numa quantidade grande.

##### Navigating Drop-Down Lists

Um botão de selecção em lista é um controlo que pode utilizar para seleccionar um de vários itens disponíveis. A lista de selecção contém um botão que é utilizado para expor a lista de itens disponíveis.

###### Botão de Selecção em Lista Exemplificativo

Botão de selecção em lista exemplificativo.

The following table lists the keyboard shortcuts that you can use to navigate a drop-down list:

Teclas | Função
--- | ---

barra de espaços

Esta tecla realiza uma das seguintes funções:

- Se a lista de selecção não estiver aberta, esta tecla abre a lista.

- Se a lista de selecção estiver aberta, esta tecla aceita a selecção actual e fecha a lista.

seta acima | Selecciona o item anterior da lista.
seta abaixo | Selecciona o item seguinte da lista.
Esc | Fecha a lista sem alterar a selecção.

##### Navigating Drop-Down Combination Boxes

Uma caixa de selecção combinada é uma caixa de texto com uma lista de selecção associada.

###### Caixa de Selecção Combinada Exemplificativa

Caixa de selecção combinada exemplificativa. Contém uma caixa de texto e um botão com uma seta que ao clicar apresenta a lista de selecção.

When the text box has focus, use the keyboard shortcuts that are listed in to navigate the text box area. When the text box has focus, you can also use the keyboard shortcuts in the following table to navigate the drop-down list area:

Teclas | Função
--- | ---
seta acima | Selecciona o item anterior da lista de selecção sem apresentar a lista.
seta abaixo | Selecciona o item seguinte da lista de selecção sem apresentar a lista.
Ctrl seta abaixo | Abre a lista de selecção.

When the drop-down list has focus, you can use the keyboard shortcuts that are listed in the following table to navigate the drop-down list:

Teclas | Função
--- | ---
seta acima | Selecciona o item anterior da lista.
seta abaixo | Selecciona o item seguinte da lista.
Home | Select the first item in the list.
End | Select the last item in the list.
Page up | Selecciona o item que está no topo da vista actual da lista.
Page Down | Selecciona o item que está no fundo da vista actual da lista.
barra de espaços | Aceita a selecção actual e fecha a lista de selecção.
Ctrl Page up | Rola para a esquerda da lista, se necessário.
Ctrl Page Down | Rola para a direita da lista, se necessário.

##### Navigating Sliders

Um botão deslizante é um controlo que pode utilizar para definir um valor num intervalo fechado de valores contínuos.

###### Botão Deslizante Exemplificativo

Botão deslizante exemplificativo. Apresenta um controlo deslizante que pode mover à esquerda ou à direita.

The following table describes the keyboard shortcuts that you can use to navigate a slider:

Teclas | Função
--- | ---
left arrow or up arrow | Move o botão deslizante à esquerda ou acima por uma pequena distância.
seta à direita ou seta abaixo | Move o botão deslizante à direita ou abaixo por uma pequena distância.
Page up | Move the slider left or up by a large amount.
Page Down | Move the slider right or down by a large amount.
Home | Move o botão deslizante até ao valor máximo.
End | Move o botão deslizante até ao valor mínimo.

##### Navigating Tabbed Sections

###### Diálogo Exemplificativo com Separadores

Editing profile dialog from the GNOME Consola application; contains six tabbed sections.

Windows and dialogs are sometimes divided into logical sections that are displayed one section at a time on the window or dialog. The overall control is referred to as a notebook or tabbed panel. The divisions are called panels, pages, or tabs, and are sometimes collectively referred to as a tabstrip or notebook header. Each individual tab is identified by a text label.

The following table lists the keyboard shortcuts that you can use to navigate the tabbed sections of a window or dialog when a tabstrip has focus:

Teclas | Função
--- | ---
seta à esquerda | Transmite o foco ao separador anterior.
seta à direita | Transmite o foco ao separador seguinte.
Tab or Ctrl down arrow | Give focus to the first control in the active section.

The following table lists the keyboard shortcuts that you can use to navigate a window or dialog when a control within a section has focus:

Teclas | Função
--- | ---
Ctrl Alt Page up | Give focus to the previous section.
Ctrl Alt Page Down | Give focus to the next section.
Ctrl Tab | Give focus to the next control outside the sections.

##### Navigating Lists

The following table lists the keyboard shortcuts that you can use to navigate multi-column lists when a column header has focus:

Teclas | Função
--- | ---
seta à esquerda ou seta à direita | Transmite o foco ao cabeçalho da coluna anterior ou seguinte.
barra de espaços | Activa o cabeçalho. Esta acção normalmente ordena a lista segundo esse cabeçalho.
Tab | Transmite o foco ao conteúdo da lista.

The following table lists the keyboard shortcuts that you can use to navigate lists when the list area has focus:

Teclas | Função
--- | ---
teclas de setas | Selecciona a linha ou coluna seguinte ou anterior.
Page up | Select the top row of the list contents that are currently in view. Press Page Up again to select the top row of the previous view.
Page Down | Select the bottom row of the list contents that are currently in view. Press Page Down again to select the bottom row of the next view.
Home | Selecciona a primeira linha da lista.
End | Selecciona a última linha da lista.
Shift + teclas de setas | Para listas que suportem selecções multi-linha, adiciona a linha ou coluna seguinte ou anterior à selecção actual. Para listas que apenas suportem selecções de uma linha, selecciona a linha ou coluna seguinte ou anterior.
Shift Page up | Selecciona todas as linhas entre a selecção actual e a linha superior da vista.
Shift Page Down | Selecciona todas as linhas entre a selecção actual e a linha inferior da vista.
Shift Home | Selecciona todas as linhas entre a selecção actual e a primeira linha da lista.
Shift End | Selecciona todas as linhas entre a selecção actual e a última linha da lista.
Ctrl + teclas de setas | Give focus to the next row or column without extending the selection. Further items can be selected by pressing spacebar.
Ctrl Page up | Give focus to the top row in the view without extending the selection.
Ctrl Page Down | Give focus to the bottom row in the view without extending the selection.
Ctrl Home | Give focus to the first row in the list without extending the selection.
Ctrl End | Give focus to the last row in the list without extending the selection.
Enter | Activate the item(s).
Ctrl A | Select all rows (for lists that support multi-line selections).
Shift Tab | Transmite o foco ao cabeçalho da coluna, se aplicável.

##### Navigating Trees

Uma árvore é um controlo de interface de utilizador que contém secções que pode expandir e recolher. Uma árvore normalmente representa uma estrutura hierárquica.

###### Estrutura em Árvore Exemplificativa

Categories tree from the gedit preferences dialog; contains three subcategories.

To navigate trees, you can use the same keyboard shortcuts that are listed in . In addition, the following table lists the keyboard shortcuts you can use for the tree items:

Teclas | Função
--- | ---
+ (plus) or shift right | Expande o item que detém o foco.
- (minus) or shift left | Recolhe o item que detém o foco.
backspace | Selecciona o item pai.
Ctrl F | Display a search dialog, allowing you to type the name of the tree item that you want to find. Not all trees support searching.

#### Personalizar os Seus Atalhos de Teclado

Use the Keyboard Shortcuts preference tool to display the default keyboard shortcuts that you use to navigate the GNOME Desktop. You can customize the default keyboard shortcuts to meet your requirements. You can also create hot keys (keyboard shortcuts which start applications).

To start the Keyboard Shortcuts preference tool, choose System Preferences Keyboard Shortcuts . The Desktop shortcuts table lists the keyboard shortcuts that are associated with each action.

##### Assigning and Clearing Keyboard Shortcuts

To assign a keyboard shortcut, perform the following steps:

1. Clique na acção para a qual deseja personalizar o atalho de teclado. A linha fica realçada e o texto Introduza um novo atalho, ou prima Backspace para limpar é apresentado na coluna Atalho.

2. Prima as teclas que deseja associar à acção. O novo atalho de teclado é apresentado na coluna Atalho.

Para desactivar um atalho de teclado, realize os seguintes passos:

1. Clique na acção para a qual deseja desactivar o atalho de teclado. A linha fica realçada e o texto Introduza um novo atalho, ou prima Backspace para limpar é apresentado na coluna Atalho.

2. Press the backspace. The keyboard shortcut is disabled.

## Visão Reduzida ou Cegueira

From low vision to blindness, the range of visual limitations is broad. Symptoms of low vision include dimness, haziness, extreme far-/near-sightedness, color blindness, and tunnel vision, among others. People with these disabilities are concerned with being able to see text or images on a computer screen and being able to perform tasks that require eye-hand coordination, such as moving a computer mouse. Text size and color can make a big difference in legibility for people with low vision.

As tecnologias que podem assistir utilizadores com visão reduzida ou invisuais são:

- Desktop Appearance Enhancement - users can configure the desktop to be easy to read; for example, by increasing text size and using high-contrast themes.

- Screen Magnifier - this is like a magnifying glass. People using them are able to control what area of the computer screen they want enlarged, and can move the magnifier to view different areas of the screen. They are also known as screen enlargers or large print programs.

- Screen Reader - this makes on-screen information available as synthesized speech and/or a refreshable braille display. They generally only translate text-based information. Graphics and other non-textual objects can be translated if there is alternative text describing the item. They are also known as blind access utilities or screen reviewers.

### Melhorias na Aparência do Ambiente

This chapter describes the methods you can use to change the appearance of the GNOME Desktop in order to enhance the accessibility of the desktop for users with visual impairments.

#### Opções de Personalização

There are several ways to customize the appearance of the GNOME Desktop to suit your specific needs:

Temas

  Themes are the most effective way to change the appearance of the desktop in a consistent manner. See for more information about themes and how to use them to achieve the type of desktop environment that you require.

Desktop and Application-Specific Configuration Settings

  You can customize different components of the desktop to achieve the display settings that you require. You can configure the desktop and applications in addition to using themes or as an alternative to themes. See for more information.

A tabela seguinte resume as alterações que pode realizar ao Ambiente de Trabalho GNOME e onde as pode realizar. Este guia não apresenta instruções detalhadas de como personalizar o ambiente de trabalho. Para instrições detalhadas de como utilizar as ferramentas de personalização que o ambiente de trabalho possui, consulte a Ajuda de cada ferramenta ou o Manual do Utilizador.

##### Referência Rápida para Personalizar a Aparência do Ambiente de Trabalho

Para alterar... | Utilizar...
--- | ---
Overall appearance of the desktop using high-contrast colors, low-contrast colors, or large print. | The Theme section of the Appearance preference tool.
Apenas o fundo do ambiente de trabalho. | The Desktop Background section of the Appearance preference tool; also the file manager Backgrounds and Emblems menu item.
Appearance of the mouse pointer. | The Theme section of the Appearance preference tool; use the Pointers tab of the Customize option.
A fonte apresentada no fundo da área de trabalho e em todas as aplicações. | The Font section of the Appearance preference tool.
As fontes por omissão das aplicações Editor de Texto, Consola ou Ajuda. | Normally these applications use the default application font that is specified in the Font section of the Appearance preference tool, but these font settings can also be overridden in the Preferences dialog for the application.

#### Utilizar Temas para Personalizar o Ambiente de Trabalho

Esta secção descreve como utilizar os temas para personalizar a aparência do Ambiente de Trabalho GNOME.

##### Introdução aos Temas

A theme is a group of coordinated settings that specifies how a desktop component or a group of desktop components appears. You can use themes to modify and control the appearance of the desktop in a consistent manner. When you apply a theme, the system modifies many desktop components simultaneously to achieve the desired effect. For example, if you apply a theme that increases the font size across the desktop, the theme also modifies the size of panels and icons on the desktop for optimum compatibility with the font size. Some themes have suggested font settings that may optionally be auto-set; in addition, most colors within a theme can be customized.

A theme contains settings that affect different parts of the desktop:

Controlos

  The controls setting for a theme determines the visual appearance of all windows, applications, panels, and panel applications. The controls setting also determines the visual appearance of the GNOME-compliant interface items that appear on windows, applications, panels, and panel applications such as menus, icons, and buttons. Some of the control options that are available in the desktop are designed for special accessibility needs.

Window Border

  A definição de margem da janela determina apenas a aparência das margens em torno das janelas.

Ícone

  A definição de ícone determina a aparência dos ícones nos painéis e no fundo da área de trabalho.

##### Choosing Themes

Para seleccionar um tema, realize os seguintes passos:

1. Choose System Preferences Appearance . The themes are listed under the Theme tab.

2. Click on a theme in the list box to choose a new theme. The system automatically applies the theme to the desktop, and may also prompt whether to apply a suggested font for the theme.

   Existem vários temas disponíveis que se adequam a diferentes necessidades de acessibilidade, tal como descrito na tabela seguinte:

   ###### Temas Desenhados para Requesitos de Acessibilidade

   Nome do Tema | Descrição
   --- | ---
   Contraste Elevado | Provides dark text on a light background using high-contrast colors.
   Contraste Elevado Invertido | Provides light text on a dark background using high-contrast colors.
   Impressão Grande | Este tema sugere um tamanho de fonte aumentado para 18pt. As cores de fundo e primeiro plano são as mesmas que as especificadas pelo tema Omissão. Para aplicar a fonte sugerida, clique no botão Aplicar Fonte.
   Impressão Grande de Alto Contraste | Este tema sugere um tamanho de fonte aumentado para 18pt utilizando texto escuro sobre um fundo claro. Para aplicar a fonte sugerida, clique no botão Aplicar Fonte.
   Impressão Grande de Alto Contraste Invertido | Este tema sugere um tamanho de fonte aumentado para 18pt utilizando texto claro sobre um fundo escuro. Para aplicar a fonte sugerida, clique no botão Aplicar Fonte.

In some GNOME distributions there are also prebuilt low-contrast/low-contrast-large-print themes to complement the high-contrast theme set.

To view the controls, window frame, and icon settings that are associated with a theme, select a theme in the Appearance preference tool, then click on the Theme tab. The Customize option contains a tabbed section for each setting category. Each tabbed section lists the options that are available and the current setting for the theme is highlighted.

##### Modifying the Controls Setting for a Theme

Para alterar as definições de controlos associadas a um tema, realize os seguintes passos:

1. Within the Theme tab, select the theme that you want to modify.

2. Click on the Customize button. The Customize Theme dialog is displayed.

3. Clique no separador Controlos para visualizar as opções de controlos disponíveis.

4. Select the controls option that you want to associate with the current theme from the list box, then click Close. The following table lists the controls options that are suitable for accessibility needs:

###### Opções de Controlos Destinadas aos Requisitos de Acessibilidade

Opção de Controlo | Descrição
--- | ---
HighContrast | Provides dark text on a light background using high-contrast colors.
HighContrastInverse | Provides light text on a dark background using high-contrast colors.
LargePrint | Aumenta o tamanho dos controlos para acomodarem fontes maiores. Para aumentar o tamanho da fonte, tem de utilizar a ferramenta de preferências Fonte. As cores de fundo e texto são as mesmas que as especificadas pelo tema por Omissão.
HighContrastLargePrint | Provides dark text on a light background using high-contrast colors. Increases the size of controls to accommodate larger fonts. To increase the font size, you must use the Font preference tool.
HighContrastLargePrintInverse | Provides light text on a dark background using high-contrast colors. Increases the size of controls to accommodate larger fonts. To increase the font size, you must use the Font preference tool.

##### Modifying the Window Border Setting for a Theme

Para alterar a definição de margem da janela associada a um tema, realize os seguintes passos:

1. In the Appearance preference tool, choose the Theme tab and the theme you want to modify.

2. Click on the Customize button. The Customize Theme dialog is displayed.

3. Clique no separador Margem da Janela para visualizar as opções de moldura de janela disponíveis.

4. Select the window frame option that you want to associate with the current theme from the list box, then click Close. The Atlanta option is designed for accessibility.

##### Modifying the Icon Setting for a Theme

Para alterar a definição de ícones associada a um tema, realize os seguintes passos:

1. In the Appearance preference tool, choose the Theme tab and select the theme that you want to modify.

2. Click on the Customize button. The Customize Theme dialog is displayed.

3. Clique no separador Ícones para visualizar as opções disponíveis.

4. Select the icon option that you want to associate with the theme from the list box, then click Close. The following table lists the icon options that are suitable for accessibility needs:

###### Opções de Ícones Destinadas a Requisitos de Acessibilidade

Opções de Ícones | Descrição
--- | ---
HighContrast | Provides dark-on-light icons using high-contrast colors.
HighContrastInverse | Provides light-on-dark icons using high-contrast colors.

##### Creating Your Own Themes

For information about how to create your own themes, see the System Administration Guide.

#### Personalizar Componentes Específicos do Ambiente de Trabalho

This section describes how to customize specific components of the GNOME Desktop individually.

##### Customizing the Desktop Background

The themes do not affect the desktop background. To set the desktop background, choose System Preferences Appearance and select a background from the Background tab. If no background is chosen, the first entry listed here may be used.

##### Customizing Desktop Background Objects

O tamanho dos ícones apresentados no fundo da área de trabalho é controlado pela ferramenta de preferências Gestão de Ficheiros. Para alterar o tamanho dos ícones, realize os seguintes passos:

1. Na janela Gestor de Ficheiros, seleccione o item de menu Editar Preferências.

2. Seleccione o separador Vistas.

3. In the Icon View Defaults group, select the zoom level that you require in the Default Zoom Level drop-down list.

##### Customizing Fonts

Esta secção descreve como personalizar as definições de fontes para o ambiente de trabalho e aplicações frequentemente utilizadas.

Se tiver dificuldades com o tipo e tamanho da fonte por omissão que é utilizada no ambiente de trabalho, pode personalizar as definições da fonte para se adequarem às suas necessidades.

Pode especificar definições individuais de fonte para os seguintes componentes e aplicações:

- Entire desktop (excluding the desktop background)

- Apenas o fundo da área de trabalho

- Consola

- Editor de Texto

- Ajuda

- Navegador Web

###### Customizing Desktop Fonts

The Appearance preference tool allows you to specify the default fonts for the desktop.

To start the Appearance preference tool, choose System Preferences Appearance. The Fonts tab contains the following options:

Application Font

  Clique neste botão para seleccionar uma fonte por omissão para utilizar no texto que é apresentado no ambiente de trabalho, incluindo o texto apresentado em janelas e diálogos associados a aplicações GNOME e aplicações de painel.

  If you use a predefined theme and you click on the Apply Font button, the font that is associated with the theme overrides the font from the Appearance preference tool.

Document Font

  Clique neste botão para seleccionar a fonte a ser utilizada para apresentar documentos.

Desktop Font

  Clique neste botão para seleccionar a fonte a ser utilizada para o texto que é apresentado apenas no fundo da área de trabalho.

Window Title Font

  Click on this button to select a font to use for the text that is displayed in the titlebar area of windows.

Fixed Width Font

  Clique neste botão para seleccionar a fonte a ser utilizada para editar documentos.

Font Rendering

  Para especificar como renderizar as fontes no ambiente de trabalho, seleccione uma das seguintes opções:

  - Monocromático

  - Best Shapes

  - Best Contrast

  - Subpixel Smoothing

If you use large fonts, you may need to change the size of panes in some applications, such as the file manager and Help browser.

For more information about the Appearance preference tool and fonts, see the User Guide.

###### Customizing Application Fonts

By default, GNOME applications use the default font specified in the Appearance preference tool. Some applications allow this default font to be customized. These applications are:

- Navegador de Ajuda

- Editor de Texto

- Consola

- Navegador Web

#### Adequar-se a Necessidades Específcias de Acessibilidade

As secções seguintes resumem os passos que terá de executar para melhorar a acessibilidade do ambiente de trabalho em cada área específica.

##### Achieving a High- or Low-Contrast Desktop

To achieve a high- or low-contrast desktop, perform the following steps:

1. Use the Appearance preference tool to select the high-contrast or low-contrast desktop theme that you require from the Theme tab.

2. Use the Background tab to customize your desktop background as follows:

   - Defina o Papel de Parede da Área de Trabalho como Sem Papel de Parede.

   - Defina as Cores da Área de Trabalho como Cor Sólida.

   - Seleccione uma cor de fundo adequada às suas necessidades.

3. Na aplicação Consola, certifique-se de que a opção Utilizar cores do tema de sistema está seleccionada no separador Cores do diálogo A Editar Perfil.

4. In the gedit (Text Editor) application, ensure that the Use default theme colors option is selected in the Fonts & Colors tabbed section of the Preferences dialog.

##### Achieving a Large Print Desktop

To achieve a large-print desktop, perform the following steps:

1. Use the Appearance preference tool to select the Large Print theme.

2. Clique no botão Aplicar Fonte para aumentar o tamanho da fonte utilizada na área de trabalho e moldura das janelas.

3. Use the Desktop Font option in the Font tab to increase the font that is displayed on desktop background objects.

4. Aumente o tamanho da fonte que é utilizada para apresentar o conteúdo das janelas da aplicação Consola.

5. If the Use default theme font option is selected in the gedit (Text Editor) Preferences dialog, gedit uses the font size that is specified in the large-print theme that you selected. However, if the Use default theme font option is not selected, increase the font size that is used to display the contents of the gedit text editor window. See the gedit manual for more information.

6. If you use applications that use panes, such as the file manager and help browser, you may need to change the size of panes to accommodate the large print. See the online help for the appropriate application for more information.

### Orca: Screen Reader and Magnifier

The Orca Screen Reader and Magnifier application enables users with limited or no vision to use the GNOME Desktop and associated applications. Orca provides the following functionality:

- Screen Reader

  The screen reader enables non-visual access to standard applications in the GNOME Desktop by using speech and braille output.

- Lupa

  The magnifier provides automated focus tracking and full-screen magnification to aid low-vision users.

The following sections provide information about Orca and how to use it.

#### Introdução ao Orca

##### O que é o Orca?

Orca is a flexible, extensible, and powerful assistive technology for people with visual impairments. Using various combinations of speech synthesis, braille and magnification, Orca helps provide access to applications and toolkits that support the AT-SPI (e.g., the GNOME Desktop). Orca is also free open source software.

##### Porquê o nome Orca?

One of the first DOS screen readers was Flipper, made by Omnichron Corporation in Berkeley, CA. It was named Flipper in part because the blind wife of the programmer envisioned computers as being programmed by flipping switches (an accurate image of a bygone era). Then came another DOS screen reader, this one from Henter-Joyce in Florida - "Jobs Access With Speech" (or JAWS). And so on....

Although no obvious connection exists between blindness and creatures from the sea, there is certainly a naming tradition for screen-reader software. Hence Orca, which is a lot tougher-sounding than Nemo, Ariel, Willy, or Mr. Limpet.

##### Qual é o calendário?

Orca is part of the GNOME platform and Orca's releases are coupled with the releases of the GNOME platform.

##### Como posso pedir uma nova funcionalidade?

Bugs and feature/enhancement requests (RFEs) should be reported to the GNOME Bug Tracking System . Patches are always welcome, and instructions for creating patches can be found in the GNOME Introduction to Subversion (SVN) .

##### Onde está a lista de discussão?

You can get in touch with developers and other users by sending an e-mail to the Orca mailing list (Archives).

##### Existe suporte para braille?

Yes! Braille is supported via BrlTTY and it is tightly integrated with Orca. BrlTTY offers support for nearly every refreshable braille display known to man.

##### Existe suporte para braille contratado?

Yes, Orca fully supports contracted braille output.

##### Que vozes estão disponíveis?

Orca provides interfaces to both `gnome-speech` and `emacspeak` speech services. As such, the available voices for Orca are only restricted by the speech engines supported by the available speech services. For free speech engines, you typically have a choice of the eSpeak, Festival, and FreeTTS speech engines. For commercial engines, you have a choice of additional engines such as Fonix DECtalk, Loquendo, Eloquence, Cepstral and IBMTTS, with others on the way. Periodically check the `gnome-speech` package for more progress in this area.

##### Que idiomas são suportados?

The GNOME translation teams are composed of many passionate volunteers from around the world. These teams do a great job and keep an up-to-date status report. See the Orca translation status page for the large number of languages into which Orca has been translated.

Note: support for a language also depends on the speech synthesis engine also supporting the same language.

##### Quão bem funciona a ampliação?

Orca currently uses the `gnome-mag` magnification service. `gnome-mag` has incorporated support for smoother full-screen magnification, which relies upon newer extensions in the X Window System server. These extensions do not always function well on all platforms, so smooth full-screen magnification may not always work.

#### Enabling Orca

For a text-only guided setup, open a Run dialog with Alt F2 or Meta R and use the command `orca --text-setup` Enter.

The first time Orca is launched you will be asked a few questions:

First you will be presented with a list of languages to choose from; there are currently about 64 languages and dialects supported. Most of this list will scroll off the screen, so you may have to use the terminal's scrollbar to view earlier parts of the list. Type in the number of your language choice (e.g., 7 for American English) and press Enter. You do not need to wait for the entire list to be spoken, and Orca attempts to make your default language the first choice (choice 1).

You are next asked to set Echo By Word. This option instructs Orca to speak words as you finish typing them. Type y or n and press Enter.

The next item is Key Echo. This option will speak all keys as they are pressed. Type y or n and press Enter.

Now select your desired keyboard layout; generally, you will want to choose the layout that matches your keyboard type - 1 for Desktop or 2 for Laptop. This choice will determine what key will act as the Orca modifier key. The Desktop layout uses Insert while the Laptop layout uses Caps Lock. A system, host, shift or modifier key is one which is used in conjunction with other keys, enabling keyboard access to most program functions.

Next, specify if you require braille output. This functionality assumes a BrlTTY-compatible device is available. Type y or n and press Enter. Note that you can usually just enter y here; Orca will recover gracefully and function even if it cannot find BrlTTY.

Lastly, indicate whether you want an on-screen braille output monitor. This is mostly for developers who need to verify BrlTTY output, but may also be useful in other situations, such as visually diagnosing or verifying braille output. Type y or n and press Enter.

That's it! Orca is now ready for use. If accessibility was not yet enabled, Orca does so now and asks you to logout and back in for the services to start. Type y and press Enter to restart your login session.

After completing the first-time Orca settings, use Alt F2 or Meta R to bring up the Run dialog, type in `orca` and press Enter. Accessibility functions should now be active. Orca's Configuration GUI () also has an option to let you indicate that Orca should be started automatically when you log in.

If you plan to use the Magnifier portion of Orca in full screen mode, confirm the Xserver "Composite" extension is enabled: use Alt F2 or Meta R to bring up the Run dialog, type in `xdpyinfo` and press Enter. Look for the string "Composite" in the output.

#### Utilizar o Orca

##### Initial Setup

When you run Orca for the first time, it will automatically enter setup mode. If you want to run setup at some later point, you can pass the `--setup` option to Orca the next time you run it. Furthermore, while Orca is running, you can press Insert Space to bring up Orca's Configuration GUI (). Finally, Orca provides a text setup utility that you can start by passing the `--text-setup` option to Orca. All of these options will create a `~/.orca/user-settings.py` file that holds your preferences and will also enable the accessibility infrastructure. You need to log out and log back in for the new settings to take effect.

##### Como executo o Orca?

Run Orca by typing `orca` in a terminal session window. You can do so from a virtual console window if you do not yet have access to the GUI. With the GUI installed you can also press Alt F2 or Meta R to bring up the Run dialog and then type `orca` as the command (followed by any optional parameters). Then, press Enter. Orca will automatically enter text setup mode if you run it from a virtual console window or your GUI environment is not yet set up for accessibility.

##### Sair do Orca

To quit Orca, press Insert Q (or CapsLock Q in laptop layout mode). A confirmation dialog will appear. Select Quit to close Orca. If the system seems unresponsive, you can try a few things:

- Run `orca --quit` from a terminal window, such as a virtual console; press Ctrl Alt F1 (on most Linux platforms) to get to a virtual console, enter your commands, and then use Alt F7 to get back to the desktop. This will kill the Orca process and reclaim system resources. You can then rerun Orca using the previously outlined methods.

- Press Ctrl Alt Backspace to end your login session and get back to the graphical login prompt (not implemented in all Linux distributions).

#### Interface de Configuração do Orca

The Orca Configuration GUI allows you to customize the behavior and features of Orca, such as speech, braille, and magnification. For example, you can select which speech synthesis engine you want to use, whether braille is enabled or not, and which magnification preferences you want. You can select which general keyboard layout you want (desktop or laptop) and you can also examine and modify the existing keyboard layout with fine-grained control. To bring up the Orca Configuration GUI, press Orca_Modifier Space, where Orca_Modifier is Insert when you use the Desktop Keyboard Layout () and CapsLock when you use the Laptop Keyboard Layout (). If you want to change settings for a single application, press Ctrl Orca_Modifier Space while the application has focus.

The Orca Configuration GUI is a dialog containing several tabbed pages, each of which is described in the following sections.

##### Página Geral

Orca GUI Configuration - General Page

The General page allows you to customize general aspects of Orca. These include the following:

###### Keyboard Layout

The keyboard layout section allows you to specify if you will be working on a laptop (small) or desktop (large, with a numeric keypad) keyboard. You select which layout you want by selecting one of the following options:

Desktop - if selected, the Desktop Keyboard Layout () will be used.

Laptop - if selected, the Laptop Keyboard Layout () will be used.

###### Apresentar a janela principal do Orca

Orca GUI Configuration - Main window

The Orca main window provides you with a graphical way to display the Orca Configuration GUI (also accessible with Orca_Modifier Space, where Orca_Modifier is Insert when you use the Desktop Keyboard Layout () and Caps_Lock when you use the Laptop Keyboard Layout ()). The main window also provides a Quit option, also available with Orca_Modifier Q). Many users do not like the Orca main window because it shows up in the window manager's tab order when you press Alt Tab to switch windows. By deselecting the "Show Orca main window" button, you can tell Orca to not show the Orca main window.

###### Sair do Orca sem Confirmar

Normally, when you press Orca_Modifier Q to quit Orca or press the Quit button in the Orca main window, Orca will pop up a confirmation dialog asking you if you want to quit. Unchecking this option prevents the confirmation window from appearing.

###### Desactivar captura de teclado pelo gksu

When running commands from the launch menu, many distributions use an application known as gksu to authorize the user to run these commands; gksu is the GUI that asks you for your password. When it runs, gksu enables what is known as a "keyboard grab," which is a feature to prevent keyboard actions from going to any other application on the desktop, including Orca. The result of a keyboard grab is that Orca will not receive any keyboard events, preventing Orca from functioning normally.

By selecting the "Disable gksu keyboard grab" button, you will turn off the keyboard grab behavior, allowing Orca to function normally with system administration applications.

The keyboard grab is a security attempt by gksu to prevent nefarious applications from "sniffing" the keyboard and grabbing secret information. Please be advised that disabling the gksu keyboard grab feature can expose you to such nefarious behavior. If you do not feel comfortable with this, you can always use the root account for system administration purposes. To do so, you need to enable the root account for login, and then logout and log back in as root whenever you want to perform a system administration command.

###### Apresentar dicas

When checked, this option will tell Orca to present information about tooltips when they appear as the result of mouse hovering. Specific actions to force tooltips to appear, such as pressing Ctrl F1 when an object has focus, will always result in tooltips being presented, regardless of this setting.

###### Speak object under mouse

When checked, this option will tell Orca to present information about the object under the mouse when you move it around the screen. Note that this can cause Firefox and Thunderbird versions 2.x and earlier to crash; this is not a problem with Firefox and Thunderbird versions 3.x and later.

###### Start Orca when you login

When checked, this option will tell the system to automatically launch Orca when you log in.

##### Página de Locução

Orca GUI Configuration - Speech Page

The speech page allows you to customize how Orca uses speech synthesis.

###### Activar a locução

The first control of note on the speech page is the "enable speech" check box. This check box toggles whether or not Orca will make use of a speech synthesizer. This option, along with the ability to enable braille and enable magnifier support, allow Orca to be tailored to meet the needs of a wide variety of users.

###### Sistema de Locução e Sintetizador de Voz

The next two controls deal with selecting the speech system and synthesizer. Orca provides support for a growing number of speech systems. At the time of this writing, these include GNOME-speech, Emacspeak, and an experimental backend for Speech Dispatcher. Depending upon how your machine is configured, you may have all or none of these options. Typically, you will have just GNOME-speech.

Primeiro, determine que sistema de locução deseja utilizar - o GNOME-speech funciona melhor, de momento. Após realizar a sua selecção, vá à caixa de selecção exclusiva do sintetizador de voz e seleccione da lista de sintetizadores disponíveis.

###### Definições de Voz

If your synthesizer supports it, Orca can utilize multiple voices in order to identify special cases within an application, such as hyperlinks or upper case text. The voice settings and person combo boxes can be adjusted to customize these settings to your liking. For example, assume you were using Fonix DECtalk and wanted the Betty voice to denote upper case. To accomplish this, you could do the following:

1. Vá à caixa de selecção exclusiva de definições de voz e seleccione a voz de texto em maiúsculas.

2. Vá à caixa de selecção exclusiva de pessoas e seleccione a voz da Betty.

The next three sliders in the tab order allow adjustment of the synthesizer's rate, pitch and volume, respectively.

###### Nível de Pontuação

The punctuation level radio button group is used to adjust the amount of punctuation spoken by the synthesizer. The available levels are None, Some, Most and All.

###### Detalhe

A definição de detalhe determina a quantidade de informação que a locução apresentará em determinadas situações. Por exemplo, se definida para detalhada, o sintetizador irá apresentar as teclas de atalho dos itens nos menus. Quando definida para abreviado, estas teclas de atalho não serão anunciadas.

###### Locução de Linhas de Tabelas

The table row speech option determines the way in which Orca will read items within tables. The available settings are "speak current row" or "speak current cell". The ability to adjust this behavior can be useful in many situations. For example, consider the process of browsing email messages in Evolution. In this instance it may be preferable to set table speech to "speak current row" so that while arrowing through the list of messages all relevant info, such as the sender, subject, and whether the message has attachments, is read automatically. While the current row setting is active, it is still possible to read individual cells by using the left and right arrows.

You can quickly toggle this behavior by pressing Orca_Modifier F11.

###### Locução de Linhas Vazias

Some users desire to hear "blank" when navigating to a blank line in a document. Other users do not. If the "speak blank lines" check box is selected, Orca will speak blank lines.

###### Speak multicase strings as words

When working with code, one often comes across a "word" consisting of several words with alternating case, such as "MultiCaseString." Speech synthesizers do not always pronounce such multicase strings correctly. Checking the Speak multicase strings as words checkbox will cause Orca to break a word like "MultiCaseString" into separate words ("Multi," "Case," and "String") prior to passing it along to the speech synthesizer.

###### Speak tutorial messages

When moving from component to component in an interface, this option will provide spoken tutorial messages for how to work with the component.

###### Speak object mnemonics

This option will cause Orca to announce the mnemonic associated with the object with focus (such as "Alt O" for the OK button).

###### Break speech into chunks between pauses

Depending on the enabled speech settings, Orca may have quite a bit to say about a particular object such as its name, its role, its state, its mnemonic, its tutorial message, and so on. Checking the Break speech into chunks between pauses checkbox will cause Orca to insert brief pauses in between each of these pieces of information.

###### Speak child position

Checking the Speak child position checkbox will cause Orca to announce the position of the focused item in menus and lists (e.g. "9 of 16").

###### Speak Indentation and Justification

When working with code or editing other documents it is often desirable to be aware of justification and indentation. Selecting the Speak indentation and justification check box will cause Orca to provide this information.

###### Speak Progress Bar Updates

If this setting is enabled, Orca will periodically announce the status of progress bars. How often the announcement is made is determined by the value chosen in the update interval spin button. Note that this spin button is only available if the Speak progress bar updates checkbox has been checked.

###### Restrict progress bar updates to

This setting controls which progress bars should be spoken, assuming the Speak progress bar updates checkbox has been checked. The choices are All, Application, and Window. Choosing All will result in Orca speaking updates for all progress bars, regardless of where the progress bars are located. Choosing Application will result in Orca speaking updates from progress bars in the active application, even if they are not in the active window. Choosing Window will result in Orca only speaking updates for progress bars in the active window. The default value is Application.

###### Say All By

This combo box allows you to specify whether the "say all" functionality of Orca speaks by sentence or line. See the Desktop Keyboard Layout () and Laptop Keyboard Layout () for how to invoke the "say all" functionality).

##### Página de Braille

Orca GUI Configuration - Braille Page

The braille page allows you to customize various aspects about the use of braille.

Orca does not automatically start BrlTTY for you; typically you need to do this yourself, usually at boot time.

###### Activar o Suporte Braille

The first control on the braille page is the "Enable braille support" check box. This check box toggles whether or not Orca will make use of a braille display. This option, along with the ability to enable braille and enable magnifier support, allow Orca to be tailored to meet the needs of a wide variety of users. By default, this check box is enabled. If BrlTTY is not running, Orca will recover gracefully and will not communicate with the braille display. If you configure BrlTTY later on, you need to restart Orca in order for it to use braille.

###### Activar o Monitor Braille

Orca's braille monitor provides an on-screen representation of what takes place on the braille display. This feature is mostly for demonstration purposes, but is also useful for Orca developers who do not have access to a braille display.

###### Nomes de Papeis Abreviados

The "Abbreviated role names" check box determines the manner in which role names are displayed and can be used to help conserve real estate on the braille display. The "Abbreviated role names" option can be better understood if we consider the following example. Let us assume that a slider had focus, and that the abbreviated role names box was not checked. In this case, the word "slider" would be shown on the display, to reflect the fact that the current control was indeed a slider. If the abbreviated role names box were checked, the word "slider" would be abbreviated to "sldr".

###### Disable end of line symbol

When checked, this feature tells Orca to not present the "$l" string at the end of a line.

###### Contracted Braille

Orca supports contracted braille via the liblouis project. Refer to the Orca WIKI, where you can find additional information about setting up liblouis with Orca.

###### Detalhe

The verbosity radio button group determines the amount of information that will be brailled in certain situations. For example, if it is set to verbose, keyboard shortcut and role name information is displayed. This information is not displayed in brief mode.

###### Selection Indicator

When you select text, Orca will "underline" that text on your braille display with Dots 7 and 8. If you would prefer, you can change the indicator to only be Dot 7, only be Dot 8, or not be present at all.

###### Hyperlink Indicator

When you encounter a hyperlink, Orca will "underline" that text on your braille display with Dots 7 and 8. If you would prefer, you can change the indicator to only be Dot 7, only be Dot 8, or not be present at all.

##### Página de Eco de Tecla

Orca GUI Configuration - Key Echo Page

The key echo page allows you to specify the behavior of Orca when pressing keys on the page and whether words are spoken as you complete them.

###### Activar o Eco de Tecla

The first control on the key echo page is the "Enable key echo" check box. When this box is selected, seven additional check boxes become available. These are: "Enable alphanumeric and punctuation keys", "Enable modifier keys", "Enable locking keys", "Enable function keys", "Enable action keys", "Enable navigation keys", and "Enable non-spacing diacritical keys".

Os grupos de teclas alfanuméricas e de funções são auto-explicativos.

Modifier keys are those such as Shift, Ctrl, and Alt.

Locking keys include Caps Lock, Scroll Lock and Num Lock.

The action keys group consists of keys that perform some logical action, such as Backspace, Return and Tab.

The navigation keys group include the four arrow keys as well as any key combination in which the Orca Modifier key is being held down. The latter is designed to prevent Orca from echoing flat review commands.

Non-spacing diacritical keys are those "dead keys" used to generate accented letters.

###### Enable Echo by Character

The next toggle on the key echo page is the "Enable echo by character" check box, used to echo the character you just typed. While echo by character seems quite similar to the key echo of alphanumeric and punctuation keys, there are important differences, especially with respect to accented letters and other symbols for which there is no dedicated key. Key echo causes Orca to announce what you just pressed; character echo causes it to announce what was inserted. The "Echo by character" control is always available, regardless of whether any of the key echo options are checked.

###### Activar o Eco por Palavra

The next toggle on the key echo page is the "Enable echo by word" check box, used to echo the word you just typed. The "Echo by word" control is always available, regardless of whether any of the key echo options are checked.

###### Enable Echo by Sentence

The last toggle on the key echo page is the "Enable echo by sentence" check box, used to echo the sentence you just typed. The echo by sentence control is always available, regardless of whether any of the key echo options are checked.

Resumindo, o esquema de eco de tecla oferece um elevado grau de flexibilidade. Por exemplo, um utilizador pode seleccionar activar todas as opções de eco de tecla, enquanto outro preferir apenas utilizar o eco de palavras, e ter as teclas de trancar a ser anunciadas.

##### Página de Ampliação

Orca GUI Configuration - Magnifier Page

A página de ampliação permite-lhe activar/desactivar a ampliação e especificar como é realizada a ampliação.

###### Activar a Ampliação

The first control on the magnifier page is the "Enable magnifier" check box. This check box toggles whether or not Orca will provide magnification. This option, along with the ability to enable speech and enable braille support, allow Orca to be tailored to meet the needs of a wide variety of users.

###### Definições de Zoom

Two zoomer GUI controls determine magnification characteristics:

- "Scale factor", which sets magnification power from 1.0x to 16.0x (fractional values are supported).

- "Position", which sets the location and size of the magnifier window: "Full Screen", "Left Half", "Right Half", "Top Half", "Bottom Half", and "Custom". The default position is "Full Screen". Choosing "Custom" causes four spin buttons to become available: "Top", "Left", "Right", and "Bottom". These spin buttons allow you to define the location of each edge of the zoom window. Units are in pixels.

###### Border Settings

These options are not available in "Full Screen" mode.

###### Enable border

This option determines if a window border is visible for the magnifier.

###### Border size

This value determines the size of the border in pixels.

###### Definições de Cursor

These controls can be used to customize the size and color of the magnifier's cursor.

###### Activar o cursor

If this check box is enabled then a cursor is visible and the size and color options become available.

###### Custom size

Enable this check box if you would like to make the mouse pointer larger than it normally is. The cursor size can be changed from the default value of 32 pixels.

###### Custom color

If the cursor is enabled, a custom color can also be applied.

###### Definições de Mira

This set of controls can be used to customize the magnifier's optional area-targeting cursor.

###### Enable cross-hair

If checked, you can additionally configure the clipping behavior, size and color of the cross-hair.

###### Activar o corte da mira

If enabled, the cross-hair will be "clipped" (removed) in the area immediately surrounding the mouse pointer.

###### Cross-hair size

This control sets the thickness of the cross-hair in pixels.

###### Cross-hair color

This control allows a custom color to be used for the cross-hair.

###### Color Settings

This allows you to do some rough color adjustments of the magnified region.

###### Inverter as cores

Creates a reverse or negative-image effect.

###### Brightness

Ranges from -1 to 1 (-1 is black/no brightness; 1 is white/total brightness; 0 is "normal"/unchanged).

###### Contrast

Ranges from -1 to 1 (-1 is grey/no contrast; 1 is maximum contrast; 0 is "normal"/unchanged).

###### Tracking and Alignment Settings

These options control the tracking of the mouse cursor.

###### Mouse pointer

Choose from the following options:

###### Centered

Keeps the mouse pointer at the center of the screen whenever possible. This is the default.

###### Proportional

Positions the mouse pointer in the zoom window relative to its actual, unmagnified position. For instance, if the mouse pointer is 25% away from the left edge of the desktop, Orca positions the magnified mouse pointer 25% from the left edge of the zoom window.

###### Push

Moves the zoomer window the least amount necessary to keep the mouse pointer on the screen.

###### None

Moving the mouse pointer has no impact on what the zoomer window displays.

###### Pointer follows zoomer

This option is enabled by default. If the mouse pointer is not on the screen when you initially move the mouse, it will be moved into the zoomer so that you can continue to see what you were working on. If your preferred mouse tracking mode is centered, the pointer will be moved to the center; otherwise it will be moved to the item with focus.

###### Control and menu item

These options control additional behavior of the magnifier.

###### Centered

When navigating via keyboard, keep the focused dialog box control or menu item at the center of the screen whenever possible.

###### Push

When navigating via keyboard, move the zoomer window the least amount necessary to display the focused dialog box control or menu item. This is the default.

###### None

Using the keyboard to navigate among dialog box controls and menu items will have no impact on what the zoomer window displays.

###### Pointer follows focus

If this option is enabled, the mouse pointer will follow you as you arrow through menu items and move among controls in dialog boxes. This option is disabled by default.

###### Text cursor

These options control how the text cursor behaves.

###### Centered

As the text cursor moves, keep it at the center of the screen whenever possible.

###### Push

As the text cursor moves, move the zoomer window the least amount necessary to display it. This is the default.

###### None

Moving the text cursor will have no impact on what the zoomer window displays.

###### Edge margin

The edge margin is how close the caret should be allowed to get to the edge of the screen before it's time to "push" the zoomer window. The margin can range from 0 to 50%, with 50% being the equivalent of choosing centering. The default value is 0.

This option is only available if "Push" is your text cursor tracking mode.

###### Advanced Settings

If you press the Advanced Settings button located near the bottom of the Magnifier page, the following dialog will appear:

Orca GUI Configuration - Magnifier - Advanced Settings

###### Suavização

Bilinear or none.

###### Brightness

Red, Green, Blue: Individual controls for choosing customized brightness levels. Choosing different brightness levels for each color allows you to create the color scheme that works best for you.

###### Contrast

Red, Green, Blue: Individual controls for choosing customized contrast levels. While not as significant as changes to brightness, choosing different contrast levels for each color helps you to create the color scheme that works best for you.

###### Color Filtering

Allows you to pick one of the colorblind filters available through libcolorblind.

In order to take advantage of this feature you will need to install libcolorblind and then rebuild gnome-mag.

###### Multi-Monitor Settings - Source Display

X Window System DISPLAY of what should be magnified. Written in the form ":0.x" where x is the number of the screen whose contents should be magnified.

###### Multi-Monitor Settings - Target Display

X Window System DISPLAY of where to put the zoomer window. Written in the form ":0.y" where y is the number of the screen where the zoomer window should appear.

##### Página de Associações de Teclas

Orca GUI Configuration - Key Bindings Page

The key bindings page allows you to examine and modify the key bindings for Orca.

###### Teclas Modificadoras do Orca

The first control on the key bindings page allows you to examine which key (or keys) acts as the "Orca modifier." The Orca modifier is the key that you press and hold in conjunction with other keys to give commands to Orca. For desktop keyboards, the Orca modifier defaults to Insert. For laptop keyboards, the Orca modifier defaults to the Caps Lock key. See the Desktop Keyboard Layout () and Laptop Keyboard Layout () sections for the default values.

You cannot modify the Orca modifier key(s) using the Configuration GUI at this time.

###### Tabela de Atalhos de Teclado

The key bindings table provides a list of Orca operations and the keys that are bound to them.

The "Function" column header is a description of the Orca operation to be performed.

The "Key Binding" header is the primary way to invoke the function from the keyboard. Note that the function description may include the word "Orca". This indicates that the Orca modifier key should be held down along with the other keys.

O cabeçalho "Alternar" apresenta um mecanismo alternativo para invocar a função a partir do teclado.

To modify either the "Key Binding" or the "Alternate" bindings, arrow to the cell and press Return. Then, press a key combination and press Return to confirm the new combination. When you do so, the new keystroke will be saved and the check box in the last column (the "Modified" column) will indicate that the key binding has been modified.

To undo a modified keybinding, merely arrow to the modified column, uncheck the checkbox, and press the "Apply" button Alt A.

Beneath the list of Orca keybindings, you will find a group of "unbound" commands:

Orca GUI Configuration - Key Bindings Page showing the 'unbound' group of commands

These are commands which we feel will be very useful for some users, but not needed by most users. Rather than "use up" a keystroke for such commands, we have left them unassigned. You can assign a keystroke to any of these unbound commands by following the procedure outlined above. In addition, you can unbind any bound command in a similar fashion: press Return to edit the keybinding, and when prompted for the new keybinding, press Delete or Backspace. You will be told that the key binding has been removed. Press Return to confirm.

##### Pronunciation Page

Orca GUI Configuration - Pronunciation Page

Sometimes your speech synthesizer just doesn't say the right thing for a given string. You might prefer to hear "laughing out loud" rather than "LOL." Or there may be a name or a technical term which the synthesizer mispronounces. The pronunciation page is where you can add, edit, and delete Orca's pronunciation dictionary entries. Because the pronunciation page is also part of the application-specific settings dialog that's started when you give a particular application focus and type Orca_Modifier Ctrl Space, you can customize your entries on an as-needed basis for each application you use.

###### Add a new dictionary entry

1. Press the New Entry button (Alt N).

2. Type the text of the new entry and press Return to finish editing the actual string.

3. Move to the Replacement String column and press Return to begin editing.

4. Type the text that you would like to have spoken instead and press Return to finish editing the replacement string.

###### Edit an existing dictionary entry

1. Move to the cell you wish to edit and press Return to begin editing.

2. Make your changes and then press Return to finish editing.

###### Delete an existing dictionary entry

1. Move to the entry you wish to delete.

2. Press the Delete button or Alt D.

##### Página de Atributos de Texto

Orca GUI Configuration - Text Attributes Page

Orca will speak known text attribute information about an object when you press Insert F (desktop layout) or Caps_Lock F (laptop layout). Because the number of text attributes is large, and not everyone cares about every attribute, the "Text Attributes" tab of the configuration GUI allows you to customize which text attributes Orca will present.

On this tab is a text attribute list, where each row consists of four columns:

- O nome do atributo de texto.

- Uma caixa de selecção que o utilizador pode activar para indicar se quer ou não que seja feita a locução deste atributo de texto.

- A checkbox which the user can set to indicate whether this text attribute should be "underlined" on the braille display.

- An editable "Present unless" string value. By default, not all text attributes will have this set. If present, what it means (assuming the user wants this text attribute presented) is that the value of the attribute will only be presented if it is not this value.

  For example, by default the "underline" text attribute has a value of "none." If the user has this attribute checked and the user types Orca_Modifier F and the text in question is not underlined, then this attribute is not spoken. If you always want this attribute to be spoken irrespective of whether the text is underlined, then the attribute should be checked and the "Present unless" value cleared.

- There is also a Reset button (Alt R) which will set the list values back to their initial state when the dialog was first displayed.

Quando inicialmente apresenta o painel de atributos de texto, todos os atributos activos são colocados no topo da lista. São apresentados pela ordem pela qual será realizada a locução ou apresentação em braille.

If you decide to check others or adjust the order, there are four buttons to help you do this:

- Move to top (Alt T) - moves the selected attribute to the top of the list.

- Move up one (Alt U) - moves the selected attribute up one row.

- Move down one (Alt D) - moves the selected attribute down one row.

- Move to bottom (Alt B) - moves the selected attribute to the bottom of the list.

Beneath these push buttons is the Braille Indicator group of radio buttons. Here you can select the cell or cells to be used to indicate text which has at least one of the specified attributes. Your choices are:

- None (the default)

- Dot 7

- Dot 8

- Dots 7 and 8

Text attributes can also be set on an individual application basis. The text attribute pane is also part of the application-specific settings dialog that's started when you give a particular application focus and type Orca_Modifier Ctrl Space.

#### Orca Keyboard Commands

You can get a complete list of available keyboard commands by visiting the Key Bindings page of the Orca Configuration GUI (). To bring up the Orca Configuration GUI, press Orca_Modifier Space, where `Orca_Modifier` is the Insert key for the desktop layout and the Caps_Lock key for the laptop layout. Note that you can also enter Orca's "learn mode" while running Orca by pressing Orca_Modifier H. When in learn mode, Orca will intercept all keyboard and braille input events and tell you what the effect would be. To exit learn mode, press the Escape key.

Orca provides additional commands for some applications, such as Firefox. To get the list of additional commands for an application, press Ctrl Orca_Modifier Space when that application has focus. This will bring up the Orca Configuration GUI in the "application-specific" state, and the additional commands will appear in the Key Bindings page.

The GNOME Desktop itself also has built in keyboard commands to control the desktop and its applications.

WARNING: the MouseKeys functionality of AccessX can interfere with the Orca modifier key (see bug 548169), resulting in odd behavior. In particular, MouseKeys uses the KP_Insert key to emulate a mouse button press. When enabled, MouseKeys can conflict with KP_Insert as the Orca modifier, resulting in what appears to be a stuck Orca modifier key. As an alternative, you can use the laptop key bindings, which avoids the keypad for Orca commands. If you accidentally enabled MouseKeys, you can disable it via the gnome-keyboard-properties application.

##### Desktop Layout

Following is a list of common Orca keyboard commands for desktop keyboards arranged by category:

###### Comandos de revisão plana

- Numpad-7 - move the flat review cursor to the previous line and read it.

- Numpad-8 - read the current line.

- Numpad-9 - move the flat review cursor to the next line and read it.

- Numpad-4 - move the flat review cursor to the previous word and read it.

- Numpad-5 - read the current word.

- Numpad-6 - move the flat review cursor to the next word and read it.

- Numpad-1 - move the flat review cursor to the previous character and read it.

- Numpad-2 - read the current character.

- Numpad-3 - move the flat review cursor to the next character and read it.

- Numpad-slash - perform a left mouse click at the location of the flat review cursor.

- Numpad-star - perform a right mouse click at the location of the flat review cursor.

- Numpad-minus - toggle between flat review and focus tracking mode.

The above commands apply when working with objects as well as when working with text. For example, if the flat review cursor were positioned on a menu bar, pressing the "read current line" command would speak the names of all visible menus. Similarly, pressing the "read next word" command would speak the object to the right of the flat review cursor on the same line, or move flat review to the next line if no more objects were found.

###### Comandos de Marcadores

- Alt Insert[1-6] - assign a bookmark to a numbered slot. If a bookmark already exists in the slot it will be replaced with the new one.

- Insert[1-6] - go to the position pointed to by the bookmark bound to this numbered slot.

- Alt Shift[1-6] - "Where am I" information for this bookmark relative to the current pointer location.

- Insert B and Insert Shift B - move between the given bookmarks for the given application or page.

- Alt Insert B - save the defined bookmarks for the current application or page.

###### Funções várias

- Numpad Plus - "say all" command; reads from the current position of the caret to the end of the document.

- Numpad Enter - "Where am I" command; speaks information such as the title of the current application window, as well as the name of the control that currently has focus.

- Insert H - enter into Orca's "learn mode"; press Escape to exit.

- Insert F - speak font and attribute information for the current character.

- Insert Space - Launch the Orca Configuration dialog.

- Insert Ctrl Space - reload user settings and reinitialize services as necessary. Also launches the Orca Configuration dialog for the current application.

- Insert S - toggle speech on and off.

- Insert F11 - toggle the reading of tables, either by single cell or whole row.

- Insert Q - quit Orca.

###### Comandos para depurar

- Ctrl Alt Insert Home - report information on the currently active script.

In order for the next three commands to be of use, Orca needs to be started from a virtual console or via gnome-terminal. Output is sent to the console only (i.e., it is not sent to speech or braille).

- Ctrl Alt Insert End - print a debug listing of all known applications to the console where Orca is running.

- Ctrl Alt Insert Page_Up - print debug information about the ancestry of the object with focus.

- Ctrl Alt Insert Page_Down - print debug information about the hierarchy of the application with focus.

##### Laptop Layout

Following is a list of common Orca keyboard commands for laptop keyboards arranged by category:

###### Comandos de revisão plana

- Caps_Lock U - move the flat review cursor to the previous line and read it. Double-click to move flat review to the top of the current window.

- Caps_Lock I - read the current line. Double-click to read the current line along with formatting and capitalization details.

- Caps_Lock O - move the flat review cursor to the next line and read it. Double- click to move flat review to the bottom of the current window.

- Caps_Lock J - move the flat review cursor to the previous word and read it. Double-click to move flat review to the word above the current word.

- Caps_Lock K - read the current word. Double-click to spell the word. Triple-click to hear the word spelled phonetically.

- Caps_Lock L - move the flat review cursor to the next word and read it. Double- click to move flat review to the word below the current word.

- Caps_Lock M - move the flat review cursor to the previous character and read it. Double-click to move flat review to the end of the current line.

- Caps_Lock Comma - read the current character. Double-click to pronounce the character phonetically if it is a letter.

- Caps_Lock Period - move the flat review cursor to the next character and read it.

- Caps_Lock 7 - perform a left mouse click at the location of the flat review cursor.

- Caps_Lock 8 - perform a right mouse click at the location of the flat review cursor.

- Caps_Lock p - toggle between flat review and focus tracking mode.

The above commands apply when working with objects as well as when working with text. For example, if the flat review cursor were positioned on a menu bar, pressing the "read current line" command would speak the names of all visible menus. Similarly, pressing the "read next word" command would speak the object to the right of the flat review cursor on the same line, or move flat review to the next line if no more objects were found.

###### Comandos de Marcadores

- Alt Caps_Lock[1-6] - add a bookmark to the numbered slot. If a bookmark already exists for the slot it will be replaced with the new one.

- Caps_Lock[1-6] - go to the position pointed to by the bookmark bound to this numbered slot.

- Alt Shift[1-6] - "Where am I" information for this bookmark relative to the current pointer location.

- Caps_Lock Band Caps_Lock Shift B - move between the given bookmarks for the given application or page.

- Alt Caps_Lock B - save the defined bookmarks for the current application or page.

###### Funções várias

- Caps_Lock Semicolon - "Say all" command; reads from the current position of the caret to the end of the document.

- Caps_Lock Enter - "Where am I" command; speaks information such as the title of the current application window, as well as the name of the control that currently has focus.

- Caps_Lock H - enter learn mode (press Escape to exit).

- Caps_Lock F - speak font and attribute information for the current character.

- Caps_Lock Space - launch the Orca Configuration dialog.

- Caps_Lock Ctrl Space - reload user settings and reinitialize services as necessary; also launches the Orca Configuration dialog for the current application.

- Caps_Lock S - toggle speech on and off.

- Caps_Lock F11 - toggle the reading of tables, either by single cell or whole row.

- Caps_Lock Q - quit Orca.

###### Comandos para depurar

- Caps_Lock Alt Ctrl Home - report information on the currently active script.

In order for the next three commands to be of use, Orca needs to be started from a virtual console or via gnome-terminal. Output is sent to the console only (i.e., it is not sent to speech or braille).

- Caps_Lock Alt Ctrl End - prints a debug listing of all known applications to the console where Orca is running.

- Caps_Lock Alt Ctrl Page_Up - prints debug information about the ancestry of the object with focus.

- Caps_Lock Alt Ctrl Page_Down - prints debug information about the object hierarchy of the application with focus.

#### Application-Specific Information

##### Aplicações Acessíveis

Orca is designed to work with applications and toolkits that support the Assistive Technology Service Provider Interface (AT-SPI). This includes the GNOME Desktop and its bundled applications: OpenOffice, Firefox, and the Java platform. Some applications work better than others, however, and the Orca community continually works to provide superior access to more and more applications.

##### Making Application-Specific Settings

To customize the settings for a particular application, you will first need to run that application. Make sure the application has focus, then press Orca_Modifier Ctrl Space (by default, this will be Insert Ctrl Space for the Desktop keyboard layout).

This brings up a tabbed dialog window very similar to the Orca configuration dialog, but with the following differences:

1. Não existe um painel Geral inicial.

2. As caixas de selecção exclusiva de Sistema de Locução e Sintetizador de Voz no painel de Locução estão trancadas e cinzentas (desactivadas).

3. Any existing application-specific key bindings will appear at the top of the list on the Key Bindings pane.

4. There may be a new application-specific settings pane at the end of the set of tabbed panes. Note that pressing the End key from the tab list will get you directly to the right-most tab.

Adjust your application-specific settings in the same way you set your general Orca preferences. For example, you may have Key Echo disabled generally in Orca but would like to specifically have it enabled for the gcalctool (GNOME Calculator) application. Here's where you could easily set that.

When you have your application settings customized the way you want, press the OK button. These settings will be written to your `~/.orca/app-settings` directory in a file called `<APPNAME>.py`, where `<APPNAME>` is the name of the application.

These files are automatically written by Orca. The contents of the file will be overwritten each time you change your application settings for that application.

If you want to have some extra application-specific settings or code that you don't want to lose, then you should put it in a file called `~/.orca/app-settings/<APPNAME>-customizations.py`. This file will be automatically read when the settings for the `<APPNAME>` application are loaded.

Note that this is an advanced feature that we don't expect many people to use. It's just there if you really want it.

Existe actualmente um erro conhecido (algumas pessoas poderiam chamar-lhe uma funcionalidade) que estamos a tentar corrigir:

If you adjust one or more application-specific key bindings, the new values will not take effect until you've pressed the OK button. The work-around is to either restart Orca, or Alt-Tab away to some other application and then Alt-Tab back to the one that you've just changed the key bindings for.

#### Braille

Orca uses BrlTTY for braille support. On Linux systems, BrlTTY is used to access the text mode console content. On a typical braille-enabled installation of Linux, BrlTTY is already running and providing access to the text consoles. When Orca starts, it connects to BrlTTY. If you switch from a text console to your X Windows session, your braille display will automatically follow and display the content that Orca is presenting to you.

Orca attempts to work with various releases of BrlTTY. Orca currently works best with BrlTTY v3.8 or better and also works well with BrlTTY v3.7.2. The remainder of this document provides information related to using Orca with BrlTTY 3.8.

Below are descriptions of the necessary tasks to install/setup BrlTTY in Ubuntu and Solaris. For both, you need to first obtain brltty-3.8.tar.gz from the BrlTTY site.

##### BrlTTY 3.8 no Ubuntu

First, configure your build environment to build BrlTTY. Much of this setup is done for you automatically in the Ubuntu distribution with products such as G++ already present. In addition, you must also install tcl, Pyrex, and the Python developer environment. To do this, execute the following commands as `root`:

    apt-get build-dep brltty
    apt-get install tcl8.4 python-pyrex python-dev

Then, when you build BrlTTY, avoid configuring the package with --prefix=/usr. Use the standard procedure instead, executing the following commands as `root`:

    gunzip -c brltty-3.8.tar.gz | tar xvf -
    cd brltty-3.8
    ./autogen
    ./configure
    make
    make install

Run BrlTTY as `root`:

    /bin/brltty -bauto -d/dev/ttyUSB0

If you want, you can remove the existing `/sbin/brltty` and replace it with the `/bin/brltty`, either by copying the `/bin/brltty` to `/sbin/brltty` or just by making a symbolic link. Do so at your own risk.

#### Resolução de problemas

##### O meu ambiente de trabalho bloqueou. O que faço?

Press Alt F2 or Meta R to open the Run dialog and restart Orca by running a new instance: type `orca` and press Enter. This will force any existing Orca processes to exit and will then restart Orca. This sometimes has the effect of unhanging the desktop (which is usually due to an ill-behaved application).

If you cannot get to a terminal window, try pressing Ctrl Alt Backspace : shut down the X Window System server. This should return you to the login screen.

## Restrições à Mobilidade

Mobility impairments can be caused by arthritis, stroke, cerebral palsy, Parkinson's disease, multiple sclerosis, and loss of limbs or digits, among others. Poor muscle control or weakness can make using standard keyboards and mouse devices difficult. For instance, some people are unable to type two keys simultaneously, while others tend to hit multiple keys or to bounce keys when pressing or releasing them. People who are able to use only one hand likewise have difficulties with some keyboard and mouse tasks.

As tecnologias que podem apoiar os utilizadores com restrições à mobilidade são:

- Teclado no Ecrã - permite aos utilizadores seleccionarem as teclas utilizando um dispositivo de apontar, interruptores, ou sistemas de introdução do tipo código-Morse.

- Mouse and Keyboard Enhancements - helpful for users who have trouble typing and controlling a mouse or a keyboard.

### GNOME On-Screen Keyboard (gok)

A aplicação Teclado No Ecrã apresenta teclados virtuais na sua área de trabalho. Pode utilizar o ponteiro do rato ou um dispositivo alternativo de apontar para operar os teclados virtuais. O Teclado No Ecrã apresenta os seguintes tipos de teclados:

- Composer Keyboards enable you to compose text. To type alphanumeric characters, you select the characters on the composer keyboard.

- Dynamic Keyboards reflect the applications that are currently running on the desktop. For example, On-Screen Keyboard 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.

Tem de activar os serviços de tecnologia assistiva antes de poder utilizar muitas das ferramentas de acessibilidade disponíveis.

1. Seleccione Sistema Preferências Acesso Universal Preferências de Tecnologia Assistiva.

2. Select Enable assistive technologies and then press Close and Log Out.

3. Inicie uma nova sessão. Os serviços de tecnologias assistivas serão iniciados automaticamente.

### Maximizar as Janelas de Aplicações para Utilizadores do Teclado no Ecrã

If you are an On-Screen Keyboard user, you cannot use any application in Full-Screen mode because the application window obscures the On-Screen Keyboard display.

Para redimensionar a janela para ser utilizada com a aplicação Teclado no Ecrã, realize os seguintes passos:

1. Do not enable the Full-Screen mode in the application.

2. Transmita o foco à janela da aplicação.

3. Prima F10 para maximizar a aplicação.

### Melhorias de Rato e Teclado

Esta secção descreve como configurar o rato e teclado para os tornar acessíveis a mais utilizadores.

#### Configurar o Rato

Use the Mouse preference tool to configure the mouse to suit your needs. To open the Mouse preference tool, choose System Preferences Mouse . The Mouse Preferences dialog is displayed.

##### Configuring Mouse Behavior

As secções seguintes descrevem como alterar o comportamento do rato para se adaptar às suas necessidades.

###### Configuring the Mouse for Left-Handed Use

Para configurar o rato para ser utilizado por canhotos, clique no separador Botões no diálogo Preferências do Rato, depois seleccione a opção Rato para canhotos. Ao seleccionar esta opção, o sistema troca imediatamente as funcionalidades do botão esquerdo e direito do rato.

###### Configuring Double-Click Behavior

Se tiver dificuldades em realizar um clique-duplo, pode aumentar o período de tempo que o sistema permite que decorra entre o primeiro e o segundo clique de um clique-duplo. Por exemplo, se a definição de expiração de clique-duplo for 0.4 segundos, tem de realizar o segundo clique do clique-duplo em menos de 0.4 segundos do primeiro clique. Se decorrer mais do que 0.4 segundos entre o primeiro e o segundo clique, o sistema interpreta-os como dois cliques únicos separados.

Para configurar a definição de expiração do clique-duplo, realize os seguintes passos:

1. Clique no separador Botões do diálogo Preferências do Rato.

2. Utilize a barra deslizante Expiração para especificar o tempo em segundos que o sistema deverá permitir entre dois cliques de um clique-duplo. Mover a barra para a direita aumenta o tempo em intervalos de 0.1 segundos. Do mesmo modo, mover a barra para a esquerda irá reduzir o tempo em intervalos de 0.1 segundos.

3. Execute cliques-duplos sobre a lâmpada à direita da barra deslizante para testar a definição. Se realizar os dois cliques do clique-duplo dentro do tempo especificado, a lâmpada acende-se apresentando um brilho amarelo. Se não realizar os cliques dentro do prazo especificado, a lâmpada não se acenderá. Deverá aumentar a definição de expiração e tentar novamente. Quando a lâmpada se acender, a definição de expiração estará adequada às suas necessidades.

###### Changing Mouse Pointer Size

Para alterar o tamanho do cursor (ou ponteiro) do rato que é apresentado no ambiente de trabalho, realize os seguintes passos:

1. Clique no separador Cursores no diálogo Preferências do Rato.

2. Será apresentada uma lista de temas e tamanhos disponíveis de cursor do rato.

3. Por omissão, o GNOME não inclui temas para o cursor do rato. Informação sobre como instalar e utilizar temas de cursor pode ser encontrada no Guia do Utilizador.

Em algumas plataformas terá de terminar a sessão e iniciar uma nova para que as alterações tenham efeito.

###### Locating the Mouse Pointer

Caso tenha dificuldades em localizar o cursor do rato no ecrã, pode activar uma opção para realçar o ponteiro quando prime a tecla Control. Para activar esta opção, clique no separador Cursores no diálogo de Preferências do Rato, depois seleccione a opção Realçar o cursor ao premir Ctrl. Quando premir o Control, o sistema apresenta uma animação em torno do cursor para o realçar.

Em algumas plataformas, terá de terminar a sessão e iniciar uma nova para que a alteração tenha efeito.

###### Configuring Mouse Speed and Sensitivity

Para configurar a velocidade e sensibilidade do rato, realize os seguintes passos:

1. Clique no separador Movimento no diálogo Preferências do Rato.

2. Configure as seguintes opções:

   Aceleração

     Use the slider to specify the speed at which the mouse pointer moves around the screen when you move the mouse.

     Se seleccionar um valor reduzido, o rato mover-se-á a uma velocidade semelhante àquela com que mexer fisicamente o rato. Isto significa que terá de mover fisicamente o rato grandes distâncias para cobrir toda a área de ecrã. Se seleccionar um valor elevado, o cursor do rato irá mover-se a uma velocidade maior do que aquela a que mover fisicamente o rato. Tal significa que terá de mover fisicamente o rato menores distâncias para conseguir cobrir toda a área de ecrã.

   Sensibilidade

     Use the slider to specify how responsive the mouse pointer is to movements of the mouse. Moving the slider to the right will increase the sensitivity and moving it to the left will decrease the sensitivity.

   Tolerância

     Utilize a barra deslizante para especificar a distância que tem de mover um item até que o sistema interprete o movimento como uma acção de arrastar-e-largar.

##### Configuring the Cursor

A secção seguinte descreve como alterar as características de apresentação do cursor.

###### Stopping the Cursor from Blinking

To stop the cursor from blinking in text boxes and other areas, perform the following steps:

1. Seleccione Sistema Preferências Teclado para iniciar a ferramenta de preferências de Teclado.

2. No separador Teclado, remova a selecção da opção Cursor pisca nos campos e caixas de texto.

##### Keyboard Mouse Emulation

Caso tenha mais dificuldades em utilizar o rato, pode utilizar o teclado para simular as funcionalidades do rato. Consulte deste guia para mais informações.

#### Configuring an Accessible Keyboard

Use the Keyboard preference tool to configure the keyboard accessibility options. To open the Keyboard preference tool, choose System Preferences Keyboard. Accessibility options can be enabled by selecting the Accessibility tab.

The Accessibility tabbed section allows the following options:

"Allow to turn accessibility features on and off from the keyboard" (Alt-A) - this determines if keyboard accessibility functions can be turned on or off with a key command.

Simulate simultaneous keypresses (Alt-S) - allows multiple shift (or other) keys to be entered individually but processed as a single combination keystroke. This keyboard accessibility technique is known as "sticky keys."

Disable sticky keys if two keys are pressed together (Alt-B) - automatically exit the sticky keys mode if any key combination is entered normally (eq, at the same time instead of entered individually).

Only accept long keypresses (Alt-O) - in this mode, keys must be pressed for a given length of time before they are accepted as input. This accessibility technique is also known as "slow keys." This portion of the Accessibility tabbed section also supplies a Delay slider (Alt-D) to indicate the press-down delay before the key is accepted as input.

Ignore fast duplicate keypresses (Alt-I) - in this mode, successive entry of the same key will only have a single instance of that key accepted as input. This accessibility technique is also known as "bounce keys." This portion of the Accessibility tabbed section also supplies a Delay slider (Alt-E) to indicate the press-down delay before successive keys are ignored.

#### Configuring a Keyboard-Based Mouse

Use the Keyboard preference tool to configure the keyboard to simulate a mouse. To open the Keyboard preference tool, choose System Preferences Keyboard. The Mouse Keys options can be enabled by selecting the Mouse Keys tab.

"Allow to control the pointer using the keyboard" (Alt-A) - this determines if the keyboard can be used to control the mouse pointer.

Acceleration (Alt-C) - determines how quickly mouse motion will accelerate when keyboard directional keys are pressed.

Speed (Alt-S) - determines how quickly the mouse pointer will move when keyboard directional keys are pressed.

Delay (Alt-D) - determines how much (or if) keypresses may be dampened or ignored when keyboard directional keys are pressed.

#### MouseTweaks

MouseTweaks is a collection of accessibility enhancements for pointing devices. The `mousetweaks` package provides the functions offered by the Accessibility tab of the Mouse preference tool. It also contains two panel applets related to the mouse accessibility. More particularly:

- It allows users to perform a secondary click by doing a click-and-hold of the primary mouse button.

- It offers a way to perform the various clicks without using any hardware button. In this context, the Dwell Click panel applet can be used to choose what click type to perform.

- It provides the Pointer Capture panel applet. This applet creates an area on the panel into which the pointer can be captured until the user releases it with a predefined button and modifier combination.

Most mouse-related accessibility options can be found by using System Preferences Mouse and selecting the Accessibility tab. Two additional panel applets can optionally be added to the GNOME menu bar / system panel as well; see the sections below. The full manual can be viewed by selecting the Help item from the contextual menu of the Dwell Click applet.

##### Simulated Secondary Click

A secondary or right-click can be issued by using the primary button and keeping it held down for a specified delay.

##### Dwell Click

A click can be issued by having the mouse pointer dwell in a given spot for a specified delay. In this mode, the click-type is determined by the ClickType window, Dwell Click applet, or by the direction in which the user moves the mouse after the dwell time has elapsed. The click-type can be single, double, drag or right.

The Dwell Click panel applet can be installed by right-clicking the GNOME Desktop menu bar / system panel, selecting Add to Panel, choosing Dwell Click and clicking the Add button.

##### Pointer Capture

The mouse pointer can be locked into an area of the screen so the pointing device is free for other tasks. For example, this capability allows a powerchair user to control both the powerchair and the mouse pointer with a single powerchair joystick.

The Pointer Capture panel applet creates such an area on the panel, into which the user can lock the pointer until released in a determined way.

The Pointer Capture panel applet can be installed by right-clicking the GNOME Desktop menu bar / system panel, selecting Add to Panel, choosing Pointer Capture and clicking the Add button.

Preferences may be set by choosing Preferences in the context menu of the Pointer Capture applet:

In the Capture Pointer section, the user can specify under what circumstances the pointer gets captured when it moves into the capture area. For example, if the Ctrl modifier key is checked, the pointer gets captured when it is over the capture area and the user presses the Ctrl modifier key. If no modifier is checked and the mouse button is set to 0, the pointer only has to move into the capture area to get locked. It is also possible to specify a combination of modifiers and mouse button.

In the Release Pointer section, the user can specify what modifier or mouse button releases the pointer. It is also possible to specify a combination of modifiers and mouse button.

In the Size of Capture Area section, the user can specify the width of the capture area on the GNOME panel.

#### Dasher

Dasher is an information-efficient text-entry interface, driven by natural continuous pointing gestures. Dasher is a competitive text-entry system wherever a full-size keyboard cannot be used - for example on a palmtop or wearable computer, or when operating any computer one-handed (by joystick, touchscreen or mouse) or zero-handed (eg, by head-mouse or eye-tracker).

1. Choose Applications Accessories Terminal.

2. Enter: `sudo apt-get install dasher`

3. Enter: `dasher`

Dasher may also be installed from the Applications Add/Remove dialog. In either case, it may later be launched in these ways:

- Press Alt F2 or Meta R for the Run dialog, type `dasher` and press Enter.

- Choose Applications Accessories Terminal and execute `dasher`.

- Press Alt-F1 and select Applications Universal Access Dasher.