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xiaoyu_ebox / QmlInputMethod

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icons
.gitignore
CandidateBar.qml
InputField.qml
InputMethodIndicator.qml
InputMethodViewer.qml
LICENSE
README.md
VirtualKeyboard.qml
databaseoperator.cpp
databaseoperator.h
inputcore.cpp
inputcore.h
inputmethod.pro
main.cpp
main.qml
qml.qrc
qmlhelper.cpp
qmlhelper.h
qtquickcontrols2.conf
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README
LGPL-3.0

QML输入法

本项目分为两个模块：中文输入法和虚拟键盘

其中输入法模块可单独使用，而虚拟键盘模块依赖输入法模块

输入法

Introduction

QML输入法，过滤键盘事件，分割拼音并从数据库获取词组，处理后显示。 可根据词频调整候选词顺序，并可保存用户词。

User manual

与一般PC输入法基本相同

  • Ctrl+回车键切换中英文输入
  • 减号、等号键候选词上下翻页
  • 空格键、数字键、鼠标或触屏点击选词
  • 回车键直接输入当前文本
  • ESC键取消本次输入
  • 退格键删除

目前所有标点符号皆为半角符号，暂未实现中文全角标点符号功能

Usage

仅支持main.qml文件为ApplicationWindow或其他有activeFocusControl属性的组件

  1. 将以下文件加入工程

    inputcore.h
inputcore.cpp
databaseoperator.h
databaseoperator.cpp
qmlhelp.h
qmlhelp.cpp
InputMethodViewer.qml
InputField.qml
CandidateBar.qml

  2. 在主文件中定义函数inputCoreInsteance，并添加需要监听的对象类型名

    static QObject *inputCoreInstance(QQmlEngine *, QJSEngine * engine)
{
    InputCore * ins = new InputCore(engine);
    ins->listenClassNameList << "QQuickTextField" << "QQuickTextArea";
    return ins;
}

  3. 在main函数中注册InputCore单例

    qmlRegisterSingletonType<InputCore>(
            "InputMethod", 1, 0,
            "Input", inputCoreInstance);

  4. 在主qml文件的ApplicationWindow中添加InputMethodViewer组件，并调用Input.setlistenRoot(object)

    import InputMetod 1.0

ApplicationWindow {
    //other component

    Component.onCompleted: Input.setlistenRoot(this)
    InputMethodViewer {

    }
}

  5. 将附件中的chinese.db加入可执行文件同一目录下

C++ Class

  • InputCore

    Function & Value

    void setlistenRoot(QObject *object) ： 设置根监听，object子组件中所有类名在listenClassNameList中的都会被监听

    QStringList listenClassNameList : 监听类名列表

    void resetDatabase() : 重置数据库，包含删除用户词和重置词频

    int getMaxWordsNumber() , bool setMaxWordsNumber(int max) : 最大汉字数量

Qml Component

  • InputMethodViewer ： 输入法界面组件，点击候选词或者输入序号进行选词，点击翻页按钮或-,=键翻页，自动根据activeFocusControl位置调整自身坐标

    Read and Write Property

    int candidateWordsPerPage: 5 : 每页候选词数

    int inputFontSize: 30 : 输入文字大小

    int candidateFontSize: 30 : 候选词文字大小

    int candidateWordsSpacing: 10 : 候选词间距

    int margin: 10 : 输入文字及候选词边距

    int candidateWordsStyle: Input.CandidateWords_Horizontal : 候选词面板样式

          Input.CandidateWords_Horizontal //横版样式
      Input.CandidateWords_Vertical   //竖版样式，测试较少，可能存在某些问题

    string inputColor: "DarkCyan" : 输入文字颜色

    string candidateWordsColor: "DarkCyan" : 候选词文字颜色

    string candidateFirstWordColor: "Red" : 第一个候选词文字颜色

    int maxY: 550 : 最大Y值，超过该值输入法将位于输入框上方

    同时，InputMethodViewer继承自Rectangle，所以包括color、border.color等属性可直接修改

    Read Only Property

    real visible : 可见性，可通过读取该属性判断输入法是否激活

    real opacity : 透明度，激活或关闭时会自动重置

    real width : 宽度，自适应

    real height : 高度，自适应

    real x : x坐标，自适应

    real y : y坐标，自适应

    real objectX : 输入对象x坐标

    Function

    function call(activeFocusControl) : 自动判断是否调用指示器

  • InputMethodIndicator ： 输入法指示器，显示当前输入语言，点击切换输入语言，可拖动位置，并自动贴边

    Read and Write Property

    int maxX: 1024 : 最大x值

    int maxY: 600 : 最大Y值

    int welt: 100 : 自动贴边阈值

    同时，InputMethodIndicator继承自Rectangle，所以包括color、border.color等属性可直接修改

    Read Only Property

    bool chinese : 是否中文，需要绑定InputMethod.chinese

虚拟键盘

Introduction

QML虚拟键盘，发送键盘事件以实现输入

User manual

与一般虚拟键盘基本相同

  • Ctrl+空格或点击中/En按钮切换语言
  • 鼠标，触屏点击或空格按钮选词
  • 分按钮分词，英文时即为大写锁
  • 长按按钮即输入其右上角符号
  • 123进入数字符号输入模式
  • 回车按钮实为tab键功能

目前所有标点符号皆为半角符号，暂未实现全角标点符号功能

Usage

  1. 完成上述输入法模块中Usage步骤
  2. 在main函数中添加上下文属性QmlHelper对象 
    QQmlApplicationEngine engine;
QmlHelper qmlHelper;
engine.rootContext()->setContextProperty("helper", &qmlHelper);
  3. 将VirtualKeyboard.qml加入项目
  4. 在主qml文件的ApplicationWindow中添加VirtualKeyboard组件，并调用函数及绑定参数 
    import InputMetod 1.0

ApplicationWindow {
    id: appWindow
    //other component
    Rectangle{
        id: root
    }

    Component.onCompleted: Input.setlistenRoot(this)
    InputMethodViewer {
        id: inputmethod
    }
    VirtualKeyboard {
        anchors.fill: parent
        chinese: inputmethod.chinese
        root: root
        window: appWindow
    }
    onActiveFocusControlChanged: {
        virtualKeyboard.item.call(activeFocusControl, 0)
    }
}

Qml Component

  • VirtualKeyboard

    Read and Write Property

    int keySpacing: 8 : 键之间的间隔

    int keyButtonWidth: (width - keySpacing*11) / 10 : 键宽度，默认自适应

    int keyButtonHeight: (keyboardHeight - keySpacing * 4) / 4 : 键高度，默认自适应

    int keyTextFontSize: 30 : 键字体大小

    int shiftKeyTextFontSize: 15 : 键右上角长按字体大小

    int keyboardHeight: height / 2 : 虚拟键盘高度

    string color: "AliceBlue" : 虚拟键盘背景颜色

    bool chinese : 中英文，可以绑定inputmethod.chinese

    var root : 绑定需要抬升的根控件

    var window : 绑定窗口控件

    int defaultRootY: 0 : 根控件默认Y坐标

    Read Only Property

    bool active : 虚拟键盘是否激活

    bool capsLock : 大写锁是否开启，暂时无法与物理键盘联动

    bool shift : 数字符号模式是否开启

    bool raise : 是否对根控件进行了抬升

    Function

    call(activeFocusControl, offset) : 调用虚拟键盘，建议在ApplicationWindow的onActiveFocusControlChanged槽中直接调用

          activeFocusControl  //输入对象
      offset              //遮挡判断微调

    Skills

    • 可通过Loader动态加载VirtualKeyboard，具体参考main.qml
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