#include "fontsetwidget.h"
#include "ui_fontsetwidget.h"

#include <QTextCodec>
#include <QTextBlockFormat>
#include <QTextBlock>
#include <QDebug>

FontSetWidget::FontSetWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::FontSetWidget)
{
    ui->setupUi(this);

    lineSpaceEdit = ui->lineSpaceEdit;
    lineSpaceMinusBtn = ui->lineSpaceMinusBtn;
    lineSpacePlusBtn = ui->lineSpacePlusBtn;
    charSpaceEdit = ui->charSpaceEdit;
    charSpaceMinusBtn = ui->charSpaceMinusBtn;
    charSpacePlusBtn = ui->charSpacePlusBtn;
    fontCBox = ui->comboBoxFont;

    // 勾选按钮
    connect(ui->m_BtnClose, &QPushButton::clicked, [this]() {
        emit sendButtonClickedSignal(1);
        onDialogLineSpaceAccepted();
        on_buttonSelectFont_pressed();
    });

    flagOfLeft = false;
    flagOfRight = false;

    init();
}

void FontSetWidget::init(){
    // 应用样式表
    applyStyleSheet();

    // 连接数值调整按钮
    connect(lineSpaceMinusBtn, &QPushButton::clicked, [this]() { adjustValue(lineSpaceEdit, -1); });
    connect(lineSpacePlusBtn, &QPushButton::clicked, [this]() { adjustValue(lineSpaceEdit, 1); });
    connect(charSpaceMinusBtn, &QPushButton::clicked, [this]() { adjustValue(charSpaceEdit, -1); });
    connect(charSpacePlusBtn, &QPushButton::clicked, [this]() { adjustValue(charSpaceEdit, 1); });

    // 为了方便设置控件
    comboxIndexMap.insert(5, 0);
    comboxIndexMap.insert(7, 1);
    comboxIndexMap.insert(9, 2);
    comboxIndexMap.insert(12, 3);
    comboxIndexMap.insert(16, 4);
    comboxIndexMap.insert(24, 5);
    comboxIndexMap.insert(32, 6);

    getValueFont();
}

FontSetWidget::~FontSetWidget()
{
    delete ui;
}

void FontSetWidget::bindTxTEdit(QTextEdit* textEdit){
    m_textEdit = textEdit;
}

void FontSetWidget::bindSysPara(SysPara *sysPara){
    this->sysPara = sysPara;

}

void FontSetWidget::on_buttonSelectFont_pressed(){

//         int fontSize;
         QString fontFamily;
//         getValueFont(&fontSize);
         fontFamily = getFontFamily();
       //  if(ui->checkBoxBold->isChecked())
       //      fontFamily = getFamilyName(fontSize);
       //  ui->labFontFamily->setText(fontFamily);
 #ifdef EnableArabic
         bool switchArabicFlag=false;
         bool arabicSelect=fontFamily.contains("arabic");
         if((fontFamily=="biyang" || fontFamily=="wenquanyi")&&(fontSize==7 || fontSize==9)){
             switchArabicFlag=true;
             emit EnableSwitchArabicFlag(switchArabicFlag);
         }else {
             emit EnableSwitchArabicFlag(switchArabicFlag);
         }
          dialogSaveFile->setFileNameEnglishOrArabic(false);
          emit fontSizeArabicSelect(arabicSelect);
 #endif
//         if(sysPara){
//             sysPara->para.fontPixelSize = fontSize;
//         }
//         ui->labelFontSize->setText(QString::number(fontSize));
         setFontFormat(fontSize,fontFamily);
         m_textEdit->setFocus();
        // emit fontSizeChange(fontSize);
//         bool flagBangal=false;
//         if(dialogFontSize->getFontFamily() == "bangla")
//             flagBangal = true;
//         emit switchBengalLanguage(flagBangal);

//         toggleVirtualKeyboard();

}

void FontSetWidget::setFontFormat(int fontsize,QString fontfamily){
    //if(sysPara){

        //qreal pixelSize = ui->labelFontSize->text().toFloat();
        qreal pixelSize = fontsize;
//		if(pixelSize < Public::getMinFontPixelSize())
//			pixelSize = sysPara->para.fontPixelSize;

//		if(pixelSize < Public::getMinFontPixelSize()){
//			pixelSize = Public::getMinFontPixelSize();
//		}

        if (pixelSize >= 0) {
            QTextCharFormat fmt;
            int DPI = m_textEdit->logicalDpiX();
            DPI = DPI?DPI:1;
            qreal pointSize = pixelSize*72/DPI;     //Pixel = DPI * Point / 72
            fmt.setFontPointSize(pointSize);

#ifdef VNLGXX
                        QString fontFamily =  dialogFontSize->getFontFamily();

#else
//                        QString fontFamily = ui->labFontFamily->text();
                        QString fontFamily = fontfamily;
                        fontFamily = getFontFamily();

//                        if(ui->checkBoxBold->isChecked())
//                            fontFamily = getFamilyName(pixelSize);
//                        ui->labFontFamily->setText(fontFamily);
#endif

            fmt.setFontFamily(fontFamily);
                        fmt.setFontWeight(0 && (pixelSize<=16)? QFont::Bold:QFont::Normal);
          mergeFormatOnWordOrSelection(fmt);

        }
//	}
}

void FontSetWidget::mergeFormatOnWordOrSelection(const QTextCharFormat &format)
{

    QTextCursor cursor = m_textEdit->textCursor();
    //if (!cursor.hasSelection())
    //    cursor.select(QTextCursor::WordUnderCursor);
    //cursor.mergeCharFormat(format);
    //textEdit->setTextCursor(cursor);
    //qDebug()<<"mergeFormatOnWordOrSelection"<<format;
    //qDebug()<<cursor;
    m_textEdit->mergeCurrentCharFormat(format);
}

int FontSetWidget::getValueFont(){
    fontSize = comboxIndexMap.key(fontCBox->currentIndex());

    QList<int> sizeList = comboxIndexMap.keys();
    if (sizeList.contains(fontSize)) {
        if(flagOfLeft){
            font.setFamily("wenquanyiL");
        }
        else if(flagOfRight){
            font.setFamily("wenquanyiR");
        }
        else {
            QString familyStr = QString("WenQuanYi%1").arg(fontSize);
            font.setFamily(familyStr);
        }
    } else {
        fontSize = 12;
        font.setFamily("WenQuanYi12");
    }

    font.setPixelSize(fontSize);
    ui->lineEdit->setFont(font); // 设置预览字体
    return fontSize;
}

void FontSetWidget::setValueFont(int value)
{
    int index = comboxIndexMap.value(value);
    fontCBox->setCurrentIndex(index);
    return;
}

QString FontSetWidget::getFontFamily()
{
    return  ui->lineEdit->font().family();
}

QFont FontSetWidget::getFont()
{
    return  ui->lineEdit->font();
}

void FontSetWidget::onDialogLineSpaceAccepted(){

    QTextCursor cursor = m_textEdit->textCursor();
    int position = cursor.position();
//    qDebug()<<"position line:"<<position;

    getValueLineSpace(&sysPara->para.textEditLineSpace,&sysPara->para.textEditCharSpace);
    sysPara->para.textEditLineSpace=sysPara->para.textEditLineSpace+1;//新系统行间距需要加1
    for(QTextBlock textBlock = m_textEdit->document()->begin();textBlock != m_textEdit->document()->end(); textBlock = textBlock.next()){
        QTextBlockFormat textBlockFormat = textBlock.blockFormat();
        textBlockFormat.setAlignment(Qt::AlignBottom);
        textBlockFormat.setTopMargin(-1);
        textBlockFormat.setForeground(QColor("red"));
        textBlockFormat.setBottomMargin(sysPara->para.textEditLineSpace-1);
        QTextCursor textCursor = m_textEdit->textCursor();
        textCursor.setPosition(textBlock.position());
        textCursor.setBlockFormat(textBlockFormat);
        m_textEdit->setTextCursor(textCursor);
    }

    QFont font = m_textEdit->font();
    font.setLetterSpacing(QFont::AbsoluteSpacing,sysPara->para.textEditCharSpace);
    m_textEdit->setFont(font);

     cursor = m_textEdit->textCursor();
//     position = cursor.position();
//    qDebug()<<"position line2:"<<position;
    cursor = m_textEdit->textCursor();
    cursor.setPosition(position);
//    qDebug()<<"position2:"<<position;
    m_textEdit->setTextCursor(cursor);

}

void FontSetWidget::getValueLineSpace(int *lineSpace,int *charSpace){
    *lineSpace = 0;
    *charSpace = 0;
    bool ok;
    int valuelinespace = lineSpaceEdit->text().toInt(&ok);
    if (ok) {
        *lineSpace = valuelinespace;
    }
    int charlinespace = charSpaceEdit->text().toInt(&ok);
    if (ok) {
        *charSpace = charlinespace;
    }

}

void FontSetWidget::setValueLineSpace(int lineSpace,int charSpace){
    if(lineSpace>0)
        lineSpace = lineSpace-1;  //新系统行间距需要加1
    if(lineSpace > 7 || lineSpace < 0)
        lineSpace = 0;
    lineSpaceEdit->setText(QString::number(lineSpace));

    if(charSpace > 5 || charSpace < 0)
        charSpace = 0;
     charSpaceEdit->setText(QString::number(charSpace));
}


void FontSetWidget::adjustValue(QLineEdit* edit, int delta)
{
    bool ok;
    int value = edit->text().toInt(&ok);
    if(value==0 && delta==-1)
        return;
    if(value==6 && delta==1)
        return;
    if (ok) {
        edit->setText(QString::number(value + delta));
    }
}

void FontSetWidget::updateFontSelect(int index){
    if(index<ui->comboBoxFont->count())
        ui->comboBoxFont->setCurrentIndex(index);

    m_textEdit->clear();
    on_buttonSelectFont_pressed();
}

void FontSetWidget::applyStyleSheet()
{
    QString styleSheet = R"(
        QTabWidget {
            border: none;
            background-color: #7B838E;
        }

        QTabWidget::tab-bar {
            background-color: #7B838E;
            alignment: left;
            height: 80px;
            margin: 0;
        }

        QTabBar {
            background-color: #7B838E;
            border: none;
            width: 100%;
            min-width: 100%;
            height: 80px;
            padding: 0;
        }

        QTabBar::tab {
            width: 140px;
            height: 80px;
            font-size: 16px;
            font-weight: bold;
            color: #000000;
            border: none;
            border-top-left-radius: 10px;
            border-top-right-radius: 10px;
            alignment: center bottom;
            padding-top: 0;
        }
        QTabBar::tab {
            margin-left: 10px;
            margin-top: 10px;
        }
        QTabBar::tab:!selected {
            background: qlineargradient(x1:0, y1:0, x2:0, y2:1,
                                       stop:0 #6E757F, stop:1 #96A0A9);
            border: 2px solid #63535D;
            border-bottom: none;
            position: relative;
            bottom: 0px;
        }

        QTabBar::tab:selected {
            background: qlineargradient(x1:0, y1:0, x2:0, y2:1,
                                       stop:0 #95B2D4, stop:1 #F0F0F0);
            border: none;
            position: relative;
            bottom: 0px;
        }

        QTabWidget::pane {
            border: none;
            background-color: #f0f0f0;
            top: -12px;
        }

        QWidget#buttonWidget {
            background-color: #95989D;
        }

        QPushButton#confirmBtn, QPushButton#cancelBtn {
            background-color: #E6F7FF;
            border: 1px solid #87CEEB;
            border-radius: 4px;
            font-size: 24px;
            color: #228B22;
        }

        QPushButton#confirmBtn:hover, QPushButton#cancelBtn:hover {
            background-color: #D1E9FF;
        }

        QPushButton#confirmBtn:pressed, QPushButton#cancelBtn:pressed {
            background-color: #BAE7FF;
        }

        QLabel {
            font-size: 18px;
            color: #000000;
            font-weight: 500;
        }

        QLineEdit {
            border: 1px solid #96A0A9;
            border-radius: 0px;
            padding: 4px 6px;
            background-color: #ffffff;
            font-size: 18px;
        }

        QLineEdit:focus {
            border-color: #95B2D4;
        }

        QComboBox {
            border: 1px solid #96A0A9;
            border-radius: 3px;
            padding: 5px;
            background-color: #ffffff;
            font-size: 18px;
        }

        QComboBox::drop-down {
            border: none;
        }

        QComboBox::down-arrow {
            image: url(:/Demo/image/down.png);
            width: 25px;
            height: 35px;
            margin-right: 10px;
        }

        QCheckBox {
            font-size: 18px;
            color: #000000;
            font-weight:500;
        }

        QCheckBox::indicator {
            width: 18px;
            height: 18px;
            border: 1px solid #96A0A9;
            border-radius: 10px;
            background-color: #ffffff;
        }

        QCheckBox::indicator:checked {
            background-color: #95B2D4;
            border-color: #95B2D4;
            image: url(:/Demo/image/select.png);
        }

        QPushButton {
            background-color: #5396C1;
            color: #ffffff;
            border: 1px solid #000000;
            border-radius: 3px;
            font-size: 24px;
            font-weight:500;
        }

        QPushButton:hover {
            background-color: #5396C1;
        }

        QPushButton:disabled {
            background-color: #7C828E;
            color: #606060;
            border-color: #808080;
        }
    )";


    this->setStyleSheet(styleSheet);
}



void FontSetWidget::on_comboBoxFont_currentIndexChanged(int index)
{
    getValueFont();
    return;
}