source: flair-src/trunk/tools/FlairGCS/src/DataPlot1D.cpp@ 13

// %flair:license{
// This file is part of the Flair framework distributed under the
// CECILL-C License, Version 1.0.
// %flair:license}
#include "DataPlot1D.h"
#include "Layout.h"
#include <QMouseEvent>
#include <QMenu>
#include <QGridLayout>
#include <qendian.h>

DataPlot1D::DataPlot1D(Layout* parent,int row, int col,QString title,float ymin, float ymax,bool enabled,int period):
    ScopeFixedStep(title,ymin,ymax,period/1000.),DataRemote(title,"DataPlot1D",parent,enabled,period) {

    setEnabled(enabled);
    parent->addWidget(this,row,col);
    visible_widget=this;
}

DataPlot1D::~DataPlot1D() {
    visible_widget=NULL;//because otherwise xmlwidget will delete it
}

void DataPlot1D::XmlEvent(QDomElement dom) {
    if(dom.attribute("curve")!="") {
        QString type=dom.attribute("type");
        int r=dom.attribute("r").toInt();
        int g=dom.attribute("g").toInt();
        int b=dom.attribute("b").toInt();
        QString name=dom.attribute("curve");
        addCurve(QPen(QColor(r,g,b,255)),name);
        datas_type.append(type);
        if(type=="float") {
            receivesize+=sizeof(float);
        } else if(type=="int8_t") {
            receivesize+=sizeof(int8_t);
        } else if(type=="int16_t") {
            receivesize+=sizeof(int16_t);
        } else {
            printf("MyDataPlot1D::addCurve unknown type %s\n",type.toLocal8Bit().constData());
        }
    } else {
        XmlSetup(dom);
    }
}

bool DataPlot1D::eventFilter(QObject *o, QEvent *e) {
    if (  o == canvas() ) {
        switch(e->type()) {
            case QEvent::Resize: {
                //resolution bug taille widgets:
                setMaximumHeight(parentWidget()->height()/((QGridLayout*)(parentWidget()->layout()))->rowCount());
                break;
            }
            case QEvent::MouseButtonPress: {
                return mouseEvent((QMouseEvent*)e);
            }

            default:
                break;
        }
    }
    return Scope::eventFilter(o, e);
}

void DataPlot1D::BufEvent(char **buf,int *buf_size,uint16_t period,bool big_endian)
{
    setEnabled(IsEnabled());
    if(IsEnabled()==false || RefreshRate_ms()!=period) return;
    double* datas=(double*)malloc(datas_type.count()*sizeof(double));

    for(int i=0;i<datas_type.count();i++) {
        if(datas_type.at(i)=="float") {
            uint32_t data_raw;
            float* data=(float*)&data_raw;
            memcpy((void*)&data_raw,*buf,sizeof(uint32_t));
            *buf+=sizeof(uint32_t);
            if(big_endian==true) data_raw=qFromBigEndian(data_raw);
            datas[i]=*data;
        } else if(datas_type.at(i)=="int8_t") {
            int8_t data;
            memcpy((void*)&data,*buf,sizeof(data));
            *buf+=sizeof(data);
            datas[i]=data;
        } else if(datas_type.at(i)=="int16_t") {
            int16_t data;
            memcpy((void*)&data,*buf,sizeof(data));
            *buf+=sizeof(data);
            if(big_endian==true) data=qFromBigEndian(data);
            datas[i]=data;
        } else {
            printf("DataPlot1D::BufEvent unknown type %s\n",datas_type.at(i).toLocal8Bit().constData());
        }
    }

    step_s=period/1000.;
    plot(datas);
}

//context menu
bool DataPlot1D::mouseEvent(QMouseEvent *event) {
    if (event->button() == Qt::RightButton) {
        QMenu *menu = new QMenu("nom", (QwtPlot*)this);
        QAction *a,*b,*z;

        a=menu->addAction("reset time view");
        b=menu->addAction("reset y view");
        menu->addSeparator();

        appendmenu(menu);
        z=execmenu((QwtPlot*)this,menu,event->globalPos());
        delete menu;

        if(z==a) resetXView();
        if(z==b) resetYView();

        return true;
    }
    return false;
}