lvgl/docs/others/ime_pinyin.rst

==========
Pinyin IME
==========

Pinyin IME provides API to provide Chinese Pinyin input method (Chinese
input) for keyboard object, which supports 26 key and 9 key input modes.
You can think of ``lv_ime_pinyin`` as a Pinyin input method plug-in for
keyboard objects.

Normally, an environment where `lv_keyboard </widgets/keyboard>`__ can
run can also run ``lv_ime_pinyin``. There are two main influencing
factors: the size of the font file and the size of the dictionary.

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中文

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``lv_ime_pinyin``\ 为\ `键盘 </widgets/keyboard>`__\ 组件提供汉语拼音输入法（中文输入）的功能(后文简称为拼音输入法)，支持26键和9键输入模式。您可以将
``lv_ime_pinyin`` 看成是键盘组件的汉语拼音输入法插件。

一般情况下，只要是\ `键盘 </widgets/keyboard>`__\ 组件能运行的环境
``lv_ime_pinyin`` 也能运行。有两个影响因素：字库的大小和词库的大小。

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Usage
-----

Enable :c:macro:`LV_USE_IME_PINYIN` in ``lv_conf.h``.

First use :c:expr:`lv_ime_pinyin_create(lv_scr_act())` to create a Pinyin
input method plug-in, then use
:c:expr:`lv_ime_pinyin_set_keyboard(pinyin_ime, kb)` to add the ``keyboard``
you created to the Pinyin input method plug-in. You can use
:c:expr:`lv_ime_pinyin_set_dict(pinyin_ime, your_dict)` to use a custom
dictionary (if you don't want to use the built-in dictionary at first,
you can disable :c:macro:`LV_IME_PINYIN_USE_DEFAULT_DICT` in ``lv_conf.h``,
which can save a lot of memory space).

The built-in thesaurus is customized based on the
**LV_FONT_SIMSUN_16_CJK** font library, which currently only has more
than ``1,000`` most common CJK radicals, so it is recommended to use
custom fonts and thesaurus.

In the process of using the Pinyin input method plug-in, you can change
the keyboard and dictionary at any time.

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在 ``lv_conf.h`` 中打开 :c:macro:`LV_USE_IME_PINYIN`\ 。

首先，使用 :c:expr:`lv_ime_pinyin_create(lv_scr_act())`
函数创建一个拼音输入法插件， 然后使用
:c:expr:`lv_ime_pinyin_set_keyboard(pinyin_ime, kb)`
函数将您创建的键盘组件添加到插件中。

内置的词库是基于 LVGL 的 **LV_FONT_SIMSUN_16_CJK**
字库定制，这个字库目前只有 ``1000`` 多个最常见的 CJK
部首，所以建议使用自定义字库和词库。

您可以使用 :c:expr:`lv_ime_pinyin_set_dict(pinyin_ime, your_dict)`
函数来设置使用自定义的词库，如果您一开始就不打算使用内置的词库，建议您在
``lv_conf.h`` 中将 :c:macro:`LV_IME_PINYIN_USE_DEFAULT_DICT`
关闭，这可以节省一些内存空间。

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Custom dictionary
-----------------

If you don't want to use the built-in Pinyin dictionary, you can use the
custom dictionary. Or if you think that the built-in phonetic dictionary
consumes a lot of memory, you can also use a custom dictionary.

Customizing the dictionary is very simple.

First, set :c:macro:`LV_IME_PINYIN_USE_DEFAULT_DICT` to ``0`` in ``lv_conf.h``

Then, write a dictionary in the following format.

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如果您不想使用内置的词库，可以通过下面的方法自定义词库。

自定义词典非常简单。 首先，在 ``lv_conf.h`` 将
:c:macro:`LV_IME_PINYIN_USE_DEFAULT_DICT` 设置为 0。
然后按照下面的格式编写词库。

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Dictionary format
~~~~~~~~~~~~~~~~~

The arrangement order of each pinyin syllable is very important. You
need to customize your own thesaurus according to the Hanyu Pinyin
syllable table. You can read
`here <https://baike.baidu.com/item/%E6%B1%89%E8%AF%AD%E6%8B%BC%E9%9F%B3%E9%9F%B3%E8%8A%82/9167981>`__
to learn about the Hanyu Pinyin syllables and the syllable table.

Then, write your own dictionary according to the following format:

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**注意**\ ，各个拼音音节的排列顺序非常重要，您需要按照汉语拼音音节表定制自己的词库，可以阅读\ `这里 <https://baike.baidu.com/item/%E6%B1%89%E8%AF%AD%E6%8B%BC%E9%9F%B3%E9%9F%B3%E8%8A%82/9167981>`__\ 了解\ `汉语拼音音节 <https://baike.baidu.com/item/%E6%B1%89%E8%AF%AD%E6%8B%BC%E9%9F%B3%E9%9F%B3%E8%8A%82/9167981>`__\ 以及\ `音节表 <https://baike.baidu.com/item/%E6%B1%89%E8%AF%AD%E6%8B%BC%E9%9F%B3%E9%9F%B3%E8%8A%82/9167981#1>`__\ 。

然后，根据下面的格式编写自己的词库：

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   lv_100ask_pinyin_dict_t your_pinyin_dict[] = {
               { "a", "啊阿呵吖" },
               { "ai", "埃挨哎唉哀皑蔼矮碍爱隘癌艾" },
               { "an", "按安暗岸俺案鞍氨胺厂广庵揞犴铵桉谙鹌埯黯" },
               { "ang", "昂肮盎仰" },
               { "ao", "凹敖熬翱袄傲奥懊澳" },
               { "ba", "芭捌叭吧笆八疤巴拔跋靶把坝霸罢爸扒耙" },
               { "bai", "白摆佰败拜柏百稗伯" },
               /* ...... */
               { "zuo", "昨左佐做作坐座撮琢柞"},
               {NULL, NULL}

**The last item** must end with ``{null, null}`` , or it will not work
properly.

Apply new dictionary
~~~~~~~~~~~~~~~~~~~~

After writing a dictionary according to the above dictionary format, you
only need to call this function to set up and use your dictionary:

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按照上面的词库格式编写好自己的词库之后，参考下面的用法，调用
:c:expr:`lv_100ask_pinyin_ime_set_dict(pinyin_ime, your_pinyin_dict)`
函数即可设置和使用新词库：

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       lv_obj_t * pinyin_ime = lv_100ask_pinyin_ime_create(lv_scr_act());
       lv_100ask_pinyin_ime_set_dict(pinyin_ime, your_pinyin_dict);

Modes
-----

The lv_ime_pinyin have the following modes:

-  :c:enumerator:`LV_IME_PINYIN_MODE_K26`: Pinyin 26 key input mode
-  :c:enumerator:`LV_IME_PINYIN_MODE_K9`: Pinyin 9 key input mode
-  :c:enumerator:`LV_IME_PINYIN_MODE_K9_NUMBER`: Numeric keypad mode

The ``TEXT`` modes' layout contains buttons to change mode.

To set the mode manually, use
:c:expr:`lv_ime_pinyin_set_mode(pinyin_ime, mode)` . The default mode is
:c:enumerator:`LV_IME_PINYIN_MODE_K26` .

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lv_ime_pinyin 有以下模式：

-  :c:enumerator:`LV_IME_PINYIN_MODE_K26`: 拼音26键
-  :c:enumerator:`LV_IME_PINYIN_MODE_K9`: 拼音9键(九宫格)
-  :c:enumerator:`LV_IME_PINYIN_MODE_K9_NUMBER`: 九宫格布局的数字键盘

每个模式的布局中都包含有更改到其他模式的按钮。

您可以通过 :c:expr:`lv_keyboard_set_mode(kb, mode)`
函数手动设置模式。默认的模式是 :c:enumerator:`LV_IME_PINYIN_MODE_K26` 。

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Example
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.. include:: ../examples/others/ime/index.rst

API
---