Change-Id: I0dc6af72a3ae52a0b97b704df84fb1a8197aeeb8
Reviewed-by: Jani Heikkinen <jani.heikkinen@theqtcompany.com>
Reviewed-by: Rainer Keller <rainer.keller@theqtcompany.com>

Since the virtual keyboard C++ interface is wrapped inside a
namespace, it is possible to get rid of "Declarative" name
in the class names, that would otherwise conflict with the
QML namespace in the documentation.

- Rename DeclarativeSettings to VirtualKeyboardSettings
- Remove "Declarative" from class names

The rationale for this change is that the name Declarative
refers to now obsolete QtQuick1 module. Also, the class names
are now the same in C++ and QML name spaces.

Change-Id: Ide050d47110443d894d95d35dddf0df5891587be
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>

This change wraps the entire C++ API into namespace.

In practice, all the C++ interfaces inside the qtvirtualkeyboard plugin
are private, except the QPlatformInputContext plugin API. Even the
AbstractInputMethod and AbstractInputPanel are not really a public in
the sense that they could be used outside the plugin. At least it does
not make sense, since there is no way to extend the virtual keyboard
functionality without recompiling the plugin.

Task-number: QTRD-3628
Change-Id: I1037ee247abca3219efeaa4e4150baaff7c3d668
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>

Change-Id: Iba2bd21b95dde1aac5750ac77856716e0c61e577
Reviewed-by: Kalle Viironen <kalle.viironen@theqtcompany.com>

Using the commercial template found here:

https://wiki.it.local/display/QTCOM/Header+templates+to+be+used+in+Qt+Code



Change-Id: If401d8fa3ff4dab6ea1e74477d5c02b5dcd09eea
Task-number: QTRD-3693
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>

- URL points to qt.io
- Update year to 2014

Change-Id: I6a77715faf32c88fe2832a6d21a912a20e5dae50
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>
Reviewed-by: Kalle Viironen <kalle.viironen@digia.com>

"This file is part of the Qt Quick Enterprise Controls add-on."

becomes:

"This file is part of the Qt Virtual Keyboard add-on for Qt Enterprise."

Change-Id: Ief6e840a658fdf769d653844fe92752aa44c3bec
Reviewed-by: Jarkko Koivikko <jarkko.koivikko@code-q.fi>

Added new PinyinInputMethod which is using the PinyinIME engine as
backend. The PinyinIME is Apache 2.0 licensed.

https://android.googlesource.com/platform/packages/inputmethods/PinyinIME/



The pinyin input method is enabled by using CONFIG+=pinyin
configuration flag on the qmake command line.

Dictionaries
============

The pinyin engine uses two kinds of dictionaries: sys_dict and usr_dict.

The sys_dict is a pre-built dictionary containing a search model for
Chinese words. The sys_dict is built using the dictionary tool included
in the source tree.

The sys_dict is deployed in to the
$$[QT_INSTALL_DATA]/qtvirtualkeyboard/pinyin directory on the target
system. This path will become the default location where the dictionary
is searched in. The default location can be overridden by specifying
an alternative path to the dictionary file in an environment variable
QT_VIRTUALKEYBOARD_PINYIN_DICTIONARY.

The usr_dict contains custom lemmas which the user is most frequently
using. Initially, the usr_dict may not exist, in which case it is
automatically created.

The usr_dict is located at subdirectory qtvirtualkeyboard/pinyin
under the location returned by
QStandardPaths::writableLocation(QStandardPaths::ConfigLocation).

Usage
=====

The pinyin input mode is activated by changing the input locale to
zh_CN.

Chinese words are entered by typing the phonetic form of the Chinese
words and then selecting words from the selection list.

The first item in the selection list always contains the complete
phrase. By selecting the first item, the pinyin completes the entire
phrase and ends the current input. The user can also select the
entire phrase by pressing the space key.

The subsequent items in the selection list are the segments comprising
one or more Chinese words. By selecting segments of previously unknown
lemma, the input method learns this by adding a new entry to the
usr_dict. Once the user enters the same pinyin sequence again, the
input method can suggest the same phrase as the first or the second
item in the selection list.

The characters sequences, which are not valid pinyin spellings,
are displayed in lower case letters. The user can either delete
these characters by pressing the backspace key, or select and accept
them as input from the selection list.

After the user completes the phrase, or moves the cursor in the
text, the pinyin input can predict words by looking at text up to
3 characters in history. In prediction mode the user is not
required to select any items from the prediction list.

The user can enter plain latin characters by accepting the input
sequence with the return key.

Change-Id: I46bfc0df112a4d9c892222916cb7455132dd5059
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
Reviewed-by: Liang Qi <liang.qi@digia.com>

This restructures the repo to match other Qt modules, like the
Enterprise Controls. It also renames the plugin and usages of its name
in the documentation so that the abbreviated "VKB" is not used
anywhere.

Change-Id: I5de3fc67846a50438e52f4be057abfa0d9be0d91
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>

Hunspell is now executed asynchronously on worker thread.