#include "slogwidget.h"
#include <QCoreApplication>
#include <QString>
#include <QListWidget>
#include <QFile>
#include <QTextStream>
#include <QTime>
#include <QVBoxLayout>

SLogWidget::SLogWidget(QWidget *parent):QWidget(parent),
    m_plwLog(new QListWidget(this)), m_pLayout(new QVBoxLayout(this))
{
    m_pLayout->addWidget(m_plwLog);
    setLayout(m_pLayout);
    //m_plwLog->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}


void SLogWidget::writeLog(const QString& _strLog)
{
    QTime time = QTime::currentTime();
    QString strOut = time.toString("[hh:mm:ss] ") + _strLog;
    if(strOut.length() <= 1024)
        m_plwLog->addItem(strOut);
    else
        m_plwLog->addItem(strOut.left(1024));
    QDate date = QDate::currentDate();

    QFile file("effect_" + date.toString(Qt::ISODate)+ "_" + QString::number(QCoreApplication::applicationPid())+ ".log");
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Append))
        return;

    QTextStream out(&file);
    out << strOut << "\n";
    file.close();

    if (m_plwLog->count() > 512)
    {
        m_plwLog->removeItemWidget(m_plwLog->item(0));
        QListWidgetItem* item = m_plwLog->takeItem(0);
        delete item;
    }
    m_plwLog->setCurrentRow( m_plwLog->count() - 1 );
    m_plwLog->repaint();
}


void SLogWidget::slotWriteLog(const QString& _strLog)
{
    writeLog(_strLog);
}