#include "warning.h"
#include "ui_warning.h"

#include <QPainter>
#include <QLayout>
#include <QDebug>
#include <QFile>
#include <QStyle>
#include <QMouseEvent>

#include "OneShadowEffect.h"
// #include "lhstylemanager.h"
#include "LHQLogAPI.h"


Warning::Warning(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Warning)
{
    ui->setupUi(this);
    /* 设置无边框和背景透明 */
    this->setWindowFlags(Qt::Dialog | Qt::FramelessWindowHint);
    this->setAttribute(Qt::WA_TranslucentBackground);

    /* 加载QSS */
    // QFile file(":/QSS/QSS/warning_light.qss");
    // if(file.open(QFile::ReadOnly))
    // {
    //     QString styleSheet = file.readAll();
    //     this->setStyleSheet(styleSheet);
    //     file.close();
    // }

    /* 设置文字自动换行 */
    ui->label_Warn->setWordWrap(true);
    /* 设置文本居中 */
    // ui->label_Warn->setAlignment(Qt::AlignCenter);
    ui->label_Warn->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
    /* 加载警告图标 */
    // ui->label_warnIcon->setStyleSheet(R"(border-image: url(:/ESM-8C_ICON/Tip/Tips2x.png);)");

    /* 阴影宽度是16 */
    this->layout()->setMargin(SHADOW_W);
    // m_shadow = new OneShadow(QSize(width() - SHADOW_W*2, height() - SHADOW_W*2),SHADOW_W);
    auto pShadow = new OneShadowEffect(this);
    this->setGraphicsEffect(pShadow);

    connect(ui->pBtn_close,SIGNAL(clicked()),this,SLOT(close()));
    connect(ui->pBtn_cancel,SIGNAL(clicked()),this,SLOT(close()));
    connect(ui->pBtn_ok,SIGNAL(clicked()),this,SLOT(do_ok()));
    /* 注册事件过滤器 */
    ui->pBtn_close->installEventFilter(this);
}

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

void Warning::setText(const QString &text)
{
    /* 根据文本大小设置高度 */
    ui->label_Warn->setText(text);
    /* 重新设置位置 */
    resetLabelSize();
    moveWarnICON();
}

/* 只有一个确定按钮 */
void Warning::setTextWithOneButton(const QString &text)
{
    ui->pBtn_cancel->hide();
    // ui->pBtn_ok->move(ui->pBtn_cancel->x(),ui->pBtn_cancel->y());
    ui->label_Warn->setText(text);
    /* 重新设置位置 */
    resetLabelSize();
    moveWarnICON();
}

/* 设置QSS */
void Warning::setQSS(const QString& qssPath)
{
    QString qssFile = qssPath + "/warning.qss";
    QFile file(qssFile);
    if(file.open(QIODevice::ReadOnly))
    {
        QString stylesheet = file.readAll();
        this->setStyleSheet(stylesheet);
        file.close();
    } else
    {
        LH_WRITE_ERROR(QString("打开文件失败:%1").arg(file.fileName()));
    }
}

// void Warning::paintEvent(QPaintEvent *event)
// {
//     QPainter painter(this);
//     painter.setRenderHint(QPainter::Antialiasing);
//     /* 绘制阴影 */
//     painter.drawImage(QPoint(0,0),m_shadow->image());
// }

/* 事件过滤器 */
bool Warning::eventFilter(QObject *watched, QEvent *event)
{
    if(watched == ui->pBtn_close)
    {
        if(event->type() == QEvent::Enter)
        {
            ui->pBtn_close->setProperty("Hover", true);
            ui->pBtn_close->style()->unpolish(ui->pBtn_close);
            ui->pBtn_close->style()->polish(ui->pBtn_close);
            return true;
        }else if(event->type() == QEvent::Leave)
        {
            ui->pBtn_close->setProperty("Hover", false);
            ui->pBtn_close->style()->unpolish(ui->pBtn_close);
            ui->pBtn_close->style()->polish(ui->pBtn_close);

            return true;
        }
    }
    return QWidget::eventFilter(watched,event);
}


/* 鼠标点击事件 */
void Warning::mousePressEvent(QMouseEvent *event)
{
    m_lastPos = event->globalPos();
    event->accept();
}

/* 鼠标移动事件 */
void Warning::mouseMoveEvent(QMouseEvent *event)
{
    // QRect rect = this->geometry();
    // rect.setBottom(rect.top()+50);
    auto point = ui->widget_Top->mapToGlobal(QPoint(0, 0));
    QRect rect(point, ui->widget_Top->size());

    if(!rect.contains(m_lastPos))
    {
        event->accept();
        return;
    }

    int dx = event->globalX() - m_lastPos.x();
    int dy = event->globalY() - m_lastPos.y();
    move(x()+dx, y()+dy);
    m_lastPos = event->globalPos();
    event->accept();
}

/* 鼠标释放事件 */
void Warning::mouseReleaseEvent(QMouseEvent *event)
{
    event->accept();
}



void Warning::do_ok()
{
    emit signal_ok();
    m_isOk = true;
    this->close();
}

/**
 * @brief 重新设置显示文字的区域大小，主要是设置宽度，为计算出左侧的图标位置
 *        字号是18，每个汉字的宽度、高度都是18，行高是27。
 *        文字显示区域最大宽度是306，显示17个汉字。
 *        阴影宽度是16，需要加上阴影宽度的坐标。
 * 
 */
void Warning::resetLabelSize()
{
    int TextCount = ui->label_Warn->text().count();
    int width = TextCount * 18;
    if(width > 306)
    {
        width = 306;
    }
    // ui->label_Warn->setFixedWidth(width);
    ui->label_Warn->resize(width, ui->label_Warn->height());
    /* ui->widget是布局确定的大小，获取它的大小不准确 */
    int widgetWidth = this->width();
    int x = (widgetWidth - width) / 2;
    // int x = (widgetWidth - width - ui->label_warnIcon->width() - 12) / 2;
    // x = x + ui->label_warnIcon->width() + 12; /* 加上图标的宽度，和图标之间的间距 */
    ui->label_Warn->move(x, ui->label_Warn->y());
}


/* 移动警告图标 */
void Warning::moveWarnICON()
{
    int x = ui->label_Warn->x() - ui->label_warnIcon->width() - 12;
    int y = ui->label_Warn->y() + ui->label_Warn->height() / 2 - ui->label_warnIcon->height() / 2;
    ui->label_warnIcon->move(x,y);
}