1) Han character input 
Fcitx ([ˈfaɪtɪks], {zh|小企鹅输入法}) is an input method framework with extension support for X Window that supports multiple input method engines including Pinyin transcription, table-based input methods (e.g. Wubi method), fcitx-chewing for Traditional Chinese, fcitx-keyboard for layout-based ones, fcitx-mozc for Japanese, fcitx-hangul ...