/***************************************************************************
**
**  <SYSZUXpinyin 1.0 , a chinese input method based on Qt for Embedded linux>
**  Copyright (C) <2010> <Gemfield> <gemfield@civilnet.cn>
**
**  This program is free software: you can redistribute it and/or modify
**  it under the terms of the GNU General Public License version 3 as published
**  by the Free Software Foundation.
**
**  This program is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**  GNU General Public License for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program.  If not, see <http://www.gnu.org/licenses/>.
**
**  If you have questions regarding the use of this file, please contact
**  Gemfield at gemfield@civilnet.cn or post your questions at
**  http://civilnet.cn/syszux/bbs
**
****************************************************************************/

#include <QtGui>
#include <QButtonGroup>

#include "syszuxpinyin.h"
#include "Drivers/buzzerdrv.h"

QString numberlist[10]={"1","2","3","4","5","6","7","8","9","0"};
QString syszux_lower_letter[26]={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u",
                            "v","w","x","y","z"};
QString syszux_upper_letter[26]={"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U",
                            "V","W","X","Y","Z"};

SyszuxPinyin::SyszuxPinyin(QWidget *parent, QLineEdit *edit, Work_Thread *thread) :
    customDialog(parent),
    button_group(new QButtonGroup(this)),
    input_method(0),
    lower_upper(0),
    page_count(0)
{
    int ret=0;
    setupUi(this);
    setGeometry(QRect(0,100,800,380));

    setWindowFlags(Qt::FramelessWindowHint| Qt::WindowStaysOnTopHint);
    work_thread = thread;
    connect(work_thread,SIGNAL(SentInterface(int)),this,SLOT(UpdateInterface(int)));
    lineEdit = edit;
    initGb();
    QFile file;
    file.setFileName(":new/prefix1/syszuxpinyin");
    if( !file.open(QFile::ReadOnly))
        QMessageBox::warning(0,tr("syszuxpinyin"),tr("can't load"));

    QTextStream pinyin_file(&file);

    regExp.setCaseSensitivity(Qt::CaseSensitive);
    regExp.setPattern(QString("([a-z]+)"));

    while(!pinyin_file.atEnd())
    {
        QString data = pinyin_file.readLine();//.readLine();
        ret = regExp.indexIn(data,0,QRegExp::CaretAtZero);
        pinyin_map.insert(regExp.cap(1),data.left(ret));
    }
    //connect(this,SIGNAL(sendPinyin(QString)),parent,SLOT(confirmString(QString)));
    QDir dir;
    if(false==dir.exists("/app/china") && ENCNTURN){
        pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en1.png"));
    }
    else {
        pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en.png"));
    }
    lineEdit_ALL->setText(edit->text());
    input_method = 0;//0为英文 1为中文
    lower_upper = 0;//0为小写 1为大写
    pushButton_up->setVisible(false);
    pushButton_down->setVisible(false);
    ChooseBtnVisible(false);
    file.close();

}
SyszuxPinyin::~SyszuxPinyin()
{
}
void SyszuxPinyin::initGb()
{
    QPushButton *pushButton=new QPushButton(this);
    pushButton->hide();
    pushButton=pushButton_up;
    for(int i=1;i<54;i++)
    {
        connect(pushButton,SIGNAL(pressed()),this,SLOT(btn_beep()));
        button_vector.push_back(pushButton);
        button_group->addButton(pushButton,i);

        pushButton=qobject_cast<QPushButton *>(pushButton->nextInFocusChain());
    }
    connect(button_group,SIGNAL(buttonClicked(int)),SLOT(buttonClickResponse(int)));
}
void SyszuxPinyin::buttonClickResponse(int gemfield)
{
    if(gemfield==1)//上页
    {
        selectHanziPre();
        return;
    }
    else if(gemfield==2)//下页
    {
        selectHanziNext();
        return;
    }
    else if(gemfield==3)//大小写
    {
         changeLowerUpper();
         return;
    }
    else if(gemfield==4)//退格
    {
        deleteString();
        return;
    }
    else if(gemfield==5)//清空
    {
        pushButton_up->setVisible(false);
        pushButton_down->setVisible(false);
        ChooseBtnVisible(false);
        lineEdit_ALL->clear();
        lineEdit_py->clear();
        //clearString();
        return;
    }
    else if(gemfield==6)//符号键
    {
        lineEdit_py->clear();

        pushButton_up->setVisible(false);
        pushButton_down->setVisible(false);
        ChooseBtnVisible(true);
        pushButton_choose1->setText(",");
        pushButton_choose2->setText(".");
        pushButton_choose3->setText("(");
        pushButton_choose4->setText(")");
        pushButton_choose5->setText("-");
        pushButton_choose6->setText("_");
        pushButton_choose7->setText("/");
        return;
    }
    else if(gemfield==7)//空格键
    {
        if(pushButton_choose1->text()!="" && lineEdit_py->text()!="")
        {
            lineEdit_ALL->insert(pushButton_choose1->text());
        }
        else
        {
            event=new QKeyEvent(QEvent::KeyPress, 0, Qt::NoModifier," ");
            lineEdit_ALL->setFocus();
            QApplication::sendEvent(focusWidget(),event);
        }
        pushButton_up->setVisible(false);
        pushButton_down->setVisible(false);
        ChooseBtnVisible(false);
        lineEdit_py->clear();
        //clearString();

    }
    else if(gemfield==8)//中英切换
    {
        changeInputMethod();
        return;
    }
    else if(gemfield==9)//取消键
    {
        pushButton_up->setVisible(false);
        pushButton_down->setVisible(false);
        ChooseBtnVisible(false);
        lineEdit_py->clear();
        //clearString();
        this->hide();
        return;
    }
    else if(gemfield==10)//确认
    {
        affirmString();
        return;
    }
    else if(gemfield<=17)//选字
    {
        lineEdit_ALL->insert(button_vector.at(gemfield-1)->text());
        lineEdit_py->clear();
        pushButton_up->setVisible(false);
        pushButton_down->setVisible(false);
        ChooseBtnVisible(false);
        //clearString();
        return;
    }
    else if(gemfield>=18 && gemfield<=27)
    {
        event=new QKeyEvent(QEvent::KeyPress, 0, Qt::NoModifier,numberlist[gemfield-18]);
        lineEdit_ALL->setFocus();
        QApplication::sendEvent(focusWidget(),event);
    }
    else if(gemfield>=28 && gemfield<=53)
    {
        if(lower_upper)
            event=new QKeyEvent(QEvent::KeyPress, 0, Qt::NoModifier,syszux_upper_letter[gemfield-28]);
        else
            event=new QKeyEvent(QEvent::KeyPress, 0, Qt::NoModifier,syszux_lower_letter[gemfield-28]);
        if(input_method)//中文
        {
            lineEdit_py->setFocus();
            if(!pushButton_choose1->isVisible())
            {
                ChooseBtnVisible(true);
            }
            QApplication::sendEvent(focusWidget(),event);
            matching(lineEdit_py->text());
        }
        else
        {
            lineEdit_ALL->setFocus();
            QApplication::sendEvent(focusWidget(),event);
        }
    }
}
void SyszuxPinyin::matching(QString gemfield)
{
    pinyin_list = pinyin_map.values(gemfield);
    changePage(0);
    page_count=0;
}

void SyszuxPinyin::changePage(int index)
{
    int count = pinyin_list.size();
    int i=index*7,j=9;

    while(j++ != 16 )
    {
        button_vector.at(j)->setText(pinyin_list.value(count-(++i)));
    }
    if(index==0)
        pushButton_up->setVisible(false);
    else
        pushButton_up->setVisible(true);
    if(pinyin_list.size()>(index*7+7))
        pushButton_down->setVisible(true);
    else
        pushButton_down->setVisible(false);
}

void SyszuxPinyin::selectHanziPre()
{
    changePage(--page_count);
}

void SyszuxPinyin::selectHanziNext()
{
    changePage(++page_count);
}
void SyszuxPinyin::clearString()
{
    int i=9;
    while(++i!=17)
        button_vector.at(i)->setText("");
}
void SyszuxPinyin::changeInputMethod()
{
    lineEdit_py->clear();
    if(input_method==0)//英文->中文
    {
        if(lower_upper)
        {
            lower_upper=0;//大写->小写
//            QIcon *icon = new QIcon(":new/prefix1/low.png");
//            pushButton_capital->setIcon(*icon);
            pushButton_capital->setIcon(QIcon(":new/prefix1/low.png"));
            int i=26;
            while(++i!=53)
                button_vector.at(i)->setText(syszux_lower_letter[i-27]);
        }
        input_method=1;
//        QIcon *icon = new QIcon(":new/prefix1/type_cn.png");
//        pushButton_ENCN->setIcon(*icon);
//        pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_cn.png"));
        QDir dir;
        if(false==dir.exists("/app/china") && ENCNTURN){
            pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_cn1.png"));
        }
        else {
            pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_cn.png"));
        }
   }
   else
   {
       pushButton_up->setVisible(false);
       pushButton_down->setVisible(false);
       ChooseBtnVisible(false);
       input_method=0;//中文->英文
//       QIcon *icon = new QIcon(":new/prefix1/type_en.png");
//       pushButton_ENCN->setIcon(*icon);
//        pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en.png"));
        QDir dir;
        if(false==dir.exists("/app/china") && ENCNTURN){
            pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en1.png"));
        }
        else {
            pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en.png"));
        }
   }
}
void SyszuxPinyin::changeLowerUpper()
{
    if(lower_upper==0)//小写->大写
    {
        lower_upper=1;
//        QIcon *icon = new QIcon(":new/prefix1/up.png");
//        pushButton_capital->setIcon(*icon);
        pushButton_capital->setIcon(QIcon(":new/prefix1/up.png"));
        input_method=0;//设为英文
        lineEdit_py->clear();
        pushButton_up->setVisible(false);
        pushButton_down->setVisible(false);
        ChooseBtnVisible(false);
//        icon = new QIcon(":new/prefix1/type_en.png");
//        pushButton_ENCN->setIcon(*icon);
//        pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en.png"));
        QDir dir;
        if(false==dir.exists("/app/china") && ENCNTURN){
            pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en1.png"));
        }
        else {
            pushButton_ENCN->setIcon(QIcon(":new/prefix1/type_en.png"));
        }
        int i=26;
        while(++i!=53)
            button_vector.at(i)->setText(syszux_upper_letter[i-27]);
    }
    else
    {
        lower_upper=0;//大写->小写
//        QIcon *icon = new QIcon(":new/prefix1/low.png");
//        pushButton_capital->setIcon(*icon);
        pushButton_capital->setIcon(QIcon(":new/prefix1/low.png"));
        int i=26;
        while(++i!=53)
            button_vector.at(i)->setText(syszux_lower_letter[i-27]);
    }
}
void SyszuxPinyin::deleteString()
{
    event=new QKeyEvent(QEvent::KeyPress, Qt::Key_Backspace, Qt::NoModifier);
    if(input_method)
    {
        lineEdit_py->text().isEmpty()?lineEdit_ALL->setFocus():lineEdit_py->setFocus();
        QApplication::sendEvent(focusWidget(),event);
        matching(lineEdit_py->text());
    }
    else
    {
        lineEdit_ALL->setFocus();
        QApplication::sendEvent(focusWidget(),event);
    }
}

void SyszuxPinyin::affirmString()
{
    //emit sendPinyin(lineEdit_ALL->text());
    lineEdit->setText(lineEdit_ALL->text());
    this->hide();
}

void SyszuxPinyin::ChooseBtnVisible(bool en)
{
    pushButton_choose1->setVisible(en);
    pushButton_choose2->setVisible(en);
    pushButton_choose3->setVisible(en);
    pushButton_choose4->setVisible(en);
    pushButton_choose5->setVisible(en);
    pushButton_choose6->setVisible(en);
    pushButton_choose7->setVisible(en);
}

void SyszuxPinyin::btn_beep(void)
{
    BuzzerDrv BD;
    BD.BuzzerBeep(50);
}

void SyszuxPinyin::UpdateInterface(int interface)
{
    this->close();
}