# Productivity & Office

# IBus Chinese Input Method

## Introduction

Chinese input is an important feature for office use on Linux desktops. By configuring the IBus Chinese input method, users can enter Chinese text in the Debian GNOME desktop environment for daily tasks such as document editing, web browsing, and instant messaging.

This document describes how to install, configure, and verify the IBus Chinese input method on the Quectel Pi M1 Debian system, helping users quickly set up a Chinese input environment.

## Applicable Scenarios

After IBus is configured, Chinese text can be entered in applications such as:

-  Firefox browser 

-  Text Editor 

-  LibreOffice and other office applications 

-  Terminal 

-  Other applications that support GTK / Qt input frameworks

## Applicable Platform

[电子表格]

# Installation and Configuration

## Install IBus Packages

**Note:** The following operations are performed through ABD Shell.

Update the package repository:

```plaintext
apt update
```

Install IBus and the Pinyin input engine:

```plaintext
apt install ibus ibus-pinyin
```

## Configure User Environment Variables

Switch to the desktop user through ADB:

```plaintext
su - <username>    For example:su - pi
```

Create the .xprofile file:

```plaintext
cat > ~/.xprofile <<EOF
export GTK_IM_MODULE=ibus
export QT_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
EOF
```

Check the configuration:

```plaintext
cat ~/.xprofile
```

The following content should be displayed:

```plaintext
export GTK_IM_MODULE=ibus
export QT_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
```

This indicates that the IBus environment variables have been configured successfully.

## Start IBus

Start IBus:

```plaintext
ibus-daemon -drx
```

Check the IBus processes:

```plaintext
ps -ef | grep ibus
```

Normally, IBus-related processes should be displayed, for example:

```plaintext
/usr/bin/ibus-daemon -drx
/usr/libexec/ibus-engine-simple
/usr/libexec/ibus-ui-gtk3
```

## Configure GNOME Input Sources

Check the current input sources:

```plaintext
gsettings get org.gnome.desktop.input-sources sources
```

For example:

```plaintext
[('xkb', 'cn')]
```

Add the IBus Pinyin input source:

```plaintext
gsettings set org.gnome.desktop.input-sources sources "[('xkb','cn'),('ibus','pinyin')]"
```

Verify the configuration:

```plaintext
gsettings get org.gnome.desktop.input-sources sources
```

The following should be displayed:

```plaintext
[('xkb', 'cn'), ('ibus', 'pinyin')]
```

## Configure the Shortcut Key

Set **Ctrl + Space** as the input source switching shortcut:

```plaintext
gsettings set org.gnome.desktop.wm.keybindings switch-input-source "['<Control>space']"
```

Verify the configuration:

```plaintext
gsettings get org.gnome.desktop.wm.keybindings switch-input-source
```

The following should be displayed:

```plaintext
['<Control>space']
```

## Configure the IBus Input Engine

Configure the input engines to be loaded:

```plaintext
gsettings set org.freedesktop.ibus.general preload-engines "['xkb:us::eng', 'pinyin']"
```

Check the configuration:

```plaintext
gsettings get org.freedesktop.ibus.general preload-engines
```

The following should be displayed:

```plaintext
['xkb:us::eng', 'pinyin']
```

Configure the input engine switching order:

```plaintext
gsettings set org.freedesktop.ibus.general engines-order "['xkb:us::eng', 'pinyin']"
```

Check the configuration:

```plaintext
gsettings get org.freedesktop.ibus.general engines-order
```

The following should be displayed:

```plaintext
['xkb:us::eng', 'pinyin']
```

Disable the global engine:

```plaintext
gsettings set org.freedesktop.ibus.general use-global-engine false
```

Check the configuration:

```plaintext
gsettings get org.freedesktop.ibus.general use-global-engine
```

The following should be displayed:

```plaintext
false
```

## Restart and Verify Chinese Input

After completing the above configuration, restart the device to apply the environment variables, GNOME input sources, and IBus settings.

# LibreOffice Installation and Verification

## Introduction

LibreOffice is a free and open-source office suite that supports common office functions such as word processing, spreadsheets, presentations, and drawing, making it suitable for everyday office use.

## Install LibreOffice

```plaintext
apt install libreoffice -y
```

## Function Verification

After the installation is complete, you can use the display module to verify the corresponding functions.

### LibreOffice Main Interface

```{image} images/image_NhtVbsl65o1dY0xOQRycxsynnzf.webp
:width: 1280px
:height: 800px
:align: center
```

### Writer Function Verification

Open **Writer**. A new text document can be created successfully, and the editing interface is displayed correctly.

```{image} images/image_Teiubl38oove8WxZB2vcVwron1E.webp
:width: 1280px
:height: 800px
:align: center
```

### Calc Function Verification

Open **Calc**. A new spreadsheet can be created successfully, and the worksheet and toolbar are displayed correctly.

```{image} images/image_IjqnbY6FcoOLJKxWSgFckrAAnMb.webp
:width: 1280px
:height: 800px
:align: center
```

### Impress Function Verification

Open **Impress**. A new presentation can be created successfully, and the default template can be loaded correctly.

```{image} images/image_OMuIb4Cjvoi8ucxWssycegGsnPc.webp
:width: 1280px
:height: 800px
:align: center
```

### Draw Function Verification

Open **Draw**. A new drawing document can be created successfully, and the drawing page and toolbar are displayed correctly.

```{image} images/image_CQIbb2WsRo6sNIxzi7OcVLfrnmf.webp
:width: 1280px
:height: 800px
:align: center
```

### Base Function Verification

Open **Base**. The Database Wizard opens successfully, allowing you to create a new database, open an existing database, or connect to an external database. The interface is displayed correctly.

```{image} images/image_NyDCbq3JpowzI2xFtX6c7tq3nCc.webp
:width: 1280px
:height: 800px
:align: center
```

All office applications can be launched successfully, and their graphical interfaces are displayed correctly, meeting the daily office requirements of the Debian system.