#include "MainView.h"
#include <stdexcept>
#include <QQmlComponent>
#include <QQmlContext>
#include <QtConcurrent/QtConcurrent>

#include <QDebug>

using namespace std;

static const QString g_strUrl = "qrc:/qml/MainWin.qml";

CMainView::CMainView(QObject *parent) : QObject(parent)
{
    m_engine.rootContext()->setContextProperty("mainView", this);

    m_pImageProvider = new CImageProvider();
    m_engine.addImageProvider("uml_image", m_pImageProvider);

    const QUrl url(g_strUrl);
    QQmlComponent compentCreate(&m_engine, url);
    m_pMainWin.reset((QQuickWindow*)compentCreate.create(), [](QQuickWindow* pWin) {
        pWin->deleteLater();
    });
    if (nullptr == m_pMainWin)
    {
        auto errors = compentCreate.errors();
        QString strErr = "CUserMgrWndView componentGuide.create failed";
        for(auto err : errors)
        {
            strErr += err.toString() + ";";
        }

        qDebug() << strErr << endl;
        throw std::runtime_error(strErr.toStdString());
    }
}

CMainView::~CMainView()
{
}

void CMainView::show()
{
    m_pMainWin->show();
}

void CMainView::analyze()
{
    QtConcurrent::run([this](){
        emit sigUpdateQml("busyWnd", true);
        //此连接需要DirectConnection，需要在QtConcurrent线程中执行，从而不阻塞主线程刷新界面
        emit sigAnalyze();
        emit sigUpdateQml("busyWnd", false);
    });
}

void CMainView::updateUmlImage(const QImage& img)
{
    m_pImageProvider->updateImage(img);
    emit sigUpdateQml("updateImage", QVariant());
}