#include "form_spectrum.h"
#include "ui_form_spectrum.h"
#include "InstDevice.h"

Form_Spectrum::Form_Spectrum(QWidget *parent) :
    QMainWindow(parent)
    ,ui(new Ui::Form_Spectrum)
    ,chart (new QChart() )
    ,series(new QSplineSeries() )
    ,axisX(new QValueAxis() )
    ,axisY(new QValueAxis() )
    ,bInited(false)
{
    ui->setupUi(this);
}
//---------------------------------
Form_Spectrum::~Form_Spectrum()
{
    delete ui;
}
//--------------------------------
void Form_Spectrum::InitChart()
{
    series->clear();
    series->append(0, 0);
    //*series << QPointF(300, 3000) << QPointF(400, 3000) << QPointF(500, 3000) << QPointF(600, 3000) << QPointF(800, 20000);

    //谱图显示主题
    chart->setTheme(QChart::ChartThemeBlueIcy);

    chart->legend()->hide();//图列图标隐藏
    chart->addSeries(series);
    chart->createDefaultAxes();
    chart->setTitle("Spectrum");
    chart->setTitleBrush(QColor(0, 49, 82));//普鲁士蓝

    chart->layout()->setContentsMargins(3, 3, 5, 5);//设置外边界全部为0
    chart->setMargins(QMargins(8, 20, 35, 8));//设置内边界 左 顶 右  底
    chart->setBackgroundRoundness(10); //设置背景区域圆角
    chart->setBackgroundBrush(QColor(205,255,255));//背景颜色 蒂芙尼 蓝
    //chart->setBackgroundVisible(false);  //去背景

    //-----创建坐标-------------------------------------
    //axisX = new QValueAxis;//X轴
    axisX->setRange(pXSIZE[0], pXSIZE[1]);//设置坐标轴范围
    axisX->setTitleText("波长(nm)");//标题
    axisX->setLabelFormat("%d"); //标签格式：每个单位保留几位小数
    axisX->setTickCount(7); //主分隔个数：0到10分成20个单位
    axisX->setMinorTickCount(1); //每个单位之间绘制了多少虚网线 一分为二

    connect(axisX,SIGNAL(rangeChanged(qreal, qreal)),this,SLOT(mAyisX_rangeChanged(qreal, qreal)));
    //-----------------------------------------------------------
    axisYEvent =  pYSIZE[1];
    LaxisYmin =  pYSIZE[0];
    LenCount = (axisYEvent -LaxisYmin) /20;
    //-----------------------------------------------------------
    axisY->setRange(pYSIZE[0], pYSIZE[1] );
    axisY->setTitleText("强度(Counts)");
    axisY->setLabelFormat("%d"); //标签格式
    axisY->setTickCount(7);
    axisY->setMinorTickCount(1);//一分为二
    //axisX->setGridLineVisible(false);
    //------------------------------------------------------------------
    axisY->setLinePenColor(QColor(Qt::darkBlue));//QColor(0, 120, 215)
    axisX->setLinePenColor(QColor(Qt::darkBlue));//QColor(0, 120, 215)
    // axisY->setGridLineVisible(true); //Y栅格是否显示
    // axisX->setGridLineVisible(false);//X栅格是否显示
    //------------------------------------------------------------------
    //设置曲线的粗细及颜色；
    QPen glPen(QColor(0,47,167));// 普鲁士蓝Prussian Blue0, 49, 82； RGB (0，47，167)克莱因 蓝  ；128,0,32
    glPen.setWidth(2);
    series->setPen(glPen);
    //--------------------------------------------
    //为序列设置坐标轴
    chart->setAxisX(axisX, series);
    chart->setAxisY(axisY, series);
    //QGraphicsView::DragMode
    //---------------------------------------------
    ui->graphicsView->setChart(chart);
    ui->graphicsView->setRenderHint(QPainter::Antialiasing);
    //ui->graphicsView->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    ui->graphicsView->setDragMode(QGraphicsView::DragMode::RubberBandDrag);
}
//-----------------------------------------
void Form_Spectrum::rubberZoomAdapt(QRect viewportRect, QPointF fromScenePoint, QPointF toScenePoint)

{
   QValueAxis *LaxisY = (QValueAxis*)(chart->axisY(series));//父类转子类

   int interval_len = LaxisY->max()  - LaxisY->min();//求当前的区间长度
   LenCount = interval_len /20;

   axisYEvent = LaxisY->max();
   LaxisYmin = LaxisY->min();
}
//----------------------------------------
void Form_Spectrum::SetYRange(int *pY)
{
    pYSIZE  =pY;
}
//----------------------------------------
void Form_Spectrum::SetXRange(int *px)
{
    pXSIZE  =px;
}
//---------------------------------------
void Form_Spectrum::UpdateWindows( )
{

    if(pXSIZE[0]<200)   pXSIZE[0]=200;
    if(pXSIZE[1]>800)   pXSIZE[1]=800;
    if(pYSIZE[0]<0)     pYSIZE[0]=0;
    if(pYSIZE[1]>60000) pYSIZE[1]=60000;

    axisX->setRange(pXSIZE[0], pXSIZE[1]);//设置坐标轴范围
    axisY->setRange(pYSIZE[0], pYSIZE[1] );
    //-------------------------------------------
    axisYEvent =  pYSIZE[1];
    LaxisYmin =  pYSIZE[0];
    LenCount = (axisYEvent -LaxisYmin) /20;

}
//--------------------------------------
void Form_Spectrum::wheelEvent(QWheelEvent *event)    // 滚轮事件
{
    if(event->delta() > 0)
    {
        axisYEvent-=LenCount; // 当滚轮远离使用者时进行放大
        if(axisYEvent<LenCount) axisYEvent=LenCount;
    }
    else
    {
        axisYEvent+=LenCount;  // 当滚轮向使用者方向旋转时进行缩小
        if(axisYEvent>60000) axisYEvent=60000;
    }
    axisY->setRange(LaxisYmin,axisYEvent);
}
//-----------------------------------------------------
void Form_Spectrum::UpdateWindows(InstDevice  *pClient)
{

    this->pClient = pClient;
    points.clear();

    int count = sizeof(pClient->m_fTrueWaveLength)/sizeof(pClient->m_fTrueWaveLength[0]);
    points.reserve(count);
    for(int i=0;i<count;i++)
    {
        points.append(QPointF(pClient->m_fTrueWaveLength[i], pClient->rcvCmdStrenth.STRENTH[i]));
    }

    series->replace(points);//用replace 比append快
}
//---------------------------------------------------
void Form_Spectrum::showEvent(QShowEvent *pEvent)
{
    if(!bInited)
    {
        bInited = true;
        InitChart();
        //鼠标点击拾取,显示 X波长 Y轴光强度值
        //QObject::connect(series, &QSplineSeries::hovered, [=](const QPointF &point, bool state)mutable{
        QObject::connect(series, &QSplineSeries::clicked, [=](const QPointF &point)mutable{
            {
                QToolTip::showText(QCursor::pos(), QString("%1,%2").arg(point.x()).arg(qRound(point.y())), this);
            }
        });
        //-------------------------------rubberBandChanged
        /*
        connect(ui->graphicsView,&QtCharts::QChartView::rubberBandChanged,
                         //this,
                         &Form_Spectrum::rubberZoomAdapt);
        */
        //connect(ui->graphicsView, SIGNAL(QtCharts::QChartView::rubberBandChanged), this, SLOT(rubberZoomAdapt));
    }
}
//-----------------------------------------------------------
void Form_Spectrum::keyPressEvent(QKeyEvent *event)
{
    switch (event->key())
    {
        // 以下为新增  ui->graphicsView->setRubberBand(QChartView::RectangleRubberBand);//缩放
        case Qt::Key_Escape:
            UpdateWindows();

            break;
        case Qt::Key_F1:
            ui->graphicsView->setRubberBand(QChartView::NoRubberBand);//

            break;
        case Qt::Key_F2:
            ui->graphicsView->setRubberBand(QChartView::VerticalRubberBand);//缩放

            break;
        case Qt::Key_F3:
            ui->graphicsView->setRubberBand(QChartView::HorizontalRubberBand);//缩放

            break;
        case Qt::Key_F4:
            ui->graphicsView->setRubberBand(QChartView::RectangleRubberBand);//缩放

            break;
        default:
            break;
    }
}
//----------------------------------------------------------------------------------------
void Form_Spectrum::on_graphicsView_rubberBandChanged(const QRect &viewportRect, const QPointF &fromScenePoint, const QPointF &toScenePoint)
{
   rubberZoomAdapt(viewportRect,fromScenePoint,toScenePoint);
}


void Form_Spectrum::mAyisY_rangeChanged(qreal min, qreal max)
{

}

void Form_Spectrum::mAyisX_rangeChanged(qreal min, qreal max)
{

}