/*! Keyboard 键盘根据输入部件焦点进入和离开显示键盘，键盘将现实到聚焦部件的最等曾的父窗口上.根据输入控件位置显示在最顶部和最底部.
 * 用法：   在mainn函数加入定义即可 Keyboard k;
  */
#ifndef KEYBOARD_H
#define KEYBOARD_H
#include <QWidget>

class QLabel;
class KeyButton;
class PinyinBar;
class Keyboard : public QWidget
{
    Q_OBJECT
public:
    explicit Keyboard(QWidget *parent = 0);
    ~Keyboard();

protected:
    void resizeWidget(QWidget*w);
    bool hasInput(QWidget *w);
    bool eventFilter(QObject *watched, QEvent *event)override;
    void foucsChange(QWidget *old, QWidget *now);

    void createKeys();
    void resetKey();
    QString getKey(Qt::Key key);
    void hideEvent(QHideEvent *event);
private slots:
    void handleKey();
    void clearpinyin();
    void addSearch(const QString &s=QString());
    void textChose(const QString &text, int index);
private:
    QList<KeyButton*> m_buttons;
    QWidget *m_inputWidget;
    QStringList m_list;
    PinyinBar *m_bar;
    int m_candidates;
    int m_number;
    int m_type;
    bool m_shift;
    bool m_upper;
};

#endif // KEYBOARD_H