qt - qtのメインウィンドウからダイアログを呼び出す方法は?

Question

//functions for plotting graph
void MainWindow::opengraph()
{
    QDialog* graphdialog = new QDialog;
    Ui::graph ui_graph ;
    ui_graph.setupUi(graphdialog);

    setGeometry(400, 250, 542, 390);
    setWindowTitle("Graph");
    //statusBar()->clearMessage();
    //currentDemoIndex = demoIndex;
   ui_graph.customPlot->replot();

    RealtimeDataGraph(ui_graph.customPlot);
}

void MainWindow::RealtimeDataGraph(QCustomPlot *customPlot)
{
#if QT_VERSION < QT_VERSION_CHECK(4, 7, 0)
  QMessageBox::critical(this, "", "You're using Qt < 4.7, the realtime data demo needs functions that are available with Qt 4.7 to work properly");
#endif
  //demoName = "Real Time Data Demo";

  // include this section to fully disable antialiasing for higher performance:
  /*
  customPlot->setNotAntialiasedElements(QCP::aeAll);
  QFont font;
  font.setStyleStrategy(QFont::NoAntialias);
  customPlot->xAxis->setTickLabelFont(font);
  customPlot->yAxis->setTickLabelFont(font);
  customPlot->legend->setFont(font);
  */
  customPlot->addGraph(); // blue line
  customPlot->graph(0)->setPen(QPen(Qt::blue));
  customPlot->graph(0)->setBrush(QBrush(QColor(240, 255, 200)));
  customPlot->graph(0)->setAntialiasedFill(false);
  customPlot->addGraph(); // red line
  customPlot->graph(1)->setPen(QPen(Qt::red));
  customPlot->graph(0)->setChannelFillGraph(customPlot->graph(1));
  //
//  customPlot->addGraph(); // green line
//  customPlot->graph(2)->setPen(QPen(Qt::green));
//  customPlot->graph(0)->setChannelFillGraph(customPlot->graph(2));
  //

  customPlot->addGraph(); // blue dot
  customPlot->graph(2)->setPen(QPen(Qt::blue));
  customPlot->graph(2)->setLineStyle(QCPGraph::lsNone);
  customPlot->graph(2)->setScatterStyle(QCP::ssDisc);
  customPlot->addGraph(); // red dot
  customPlot->graph(3)->setPen(QPen(Qt::red));
  customPlot->graph(3)->setLineStyle(QCPGraph::lsNone);
  customPlot->graph(3)->setScatterStyle(QCP::ssDisc);

//  customPlot->addGraph(); // green dot
//  customPlot->graph(5)->setPen(QPen(Qt::green));
//  customPlot->graph(5)->setLineStyle(QCPGraph::lsNone);
//  customPlot->graph(5)->setScatterStyle(QCP::ssDisc);
//
  customPlot->xAxis->setTickLabelType(QCPAxis::ltDateTime);
  customPlot->xAxis->setDateTimeFormat("hh:mm:ss");
  customPlot->xAxis->setAutoTickStep(false);
  customPlot->xAxis->setTickStep(2);
  customPlot->setupFullAxesBox();
  customPlot->xAxis->setLabel("Time(Sec)");
  customPlot->yAxis->setLabel("magnitude");

  // make left and bottom axes transfer their ranges to right and top axes:
  connect(customPlot->xAxis, SIGNAL(rangeChanged(QCPRange)), customPlot->xAxis2, SLOT(setRange(QCPRange)));
  connect(customPlot->yAxis, SIGNAL(rangeChanged(QCPRange)), customPlot->yAxis2, SLOT(setRange(QCPRange)));

  // setup a timer that repeatedly calls MainWindow::realtimeDataSlot:
  *connect(&dataTimer, SIGNAL(timeout()), this, SLOT(realtimeDataSlot(QCustomPlot *)));*
  dataTimer.start(0); // Interval 0 means to refresh as fast as possible
}

void MainWindow::realtimeDataSlot(QCustomPlot *customPlot)
{
  // calculate two new data points:
#if QT_VERSION < QT_VERSION_CHECK(4, 7, 0)
  double key = 0;
#else
  double key = QDateTime::currentDateTime().toMSecsSinceEpoch()/1000.0;
#endif
  static double lastPointKey = 0;
  if (key-lastPointKey > 0.01) // at most add point every 10 ms
  {
    double value0 = sin(key*1.6+cos(key*1.7)*2)*10 + sin(key*1.2+0.56)*20 + 26;
    double value1 = sin(key*1.3+cos(key*1.2)*1.2)*7 + sin(key*0.9+0.26)*24 + 26;
    //
    //double value2 = sin(key*2+cos(key*2.2)*3)*17 + sin(key*2.3+0.76)*30 + 26;
    //
    // add data to lines:
    customPlot->graph(0)->addData(key, value0);
    customPlot->graph(1)->addData(key, value1);
    //
//    ui->customPlot->graph(1)->addData(key, value2);
    // set data of dots:
    customPlot->graph(2)->clearData();
    customPlot->graph(2)->addData(key, value0);
    customPlot->graph(3)->clearData();
    customPlot->graph(3)->addData(key, value1);

//    ui->customPlot->graph(5)->clearData();
//    ui->customPlot->graph(5)->addData(key, value2);
    // remove data of lines that's outside visible range:
    customPlot->graph(0)->removeDataBefore(key-20);
    customPlot->graph(1)->removeDataBefore(key-20);
//    ui->customPlot->graph(2)->removeDataBefore(key-20);
    // rescale value (vertical) axis to fit the current data:
    customPlot->graph(0)->rescaleValueAxis();
    customPlot->graph(1)->rescaleValueAxis(true);
//    ui->customPlot->graph(2)->rescaleValueAxis(true);
    lastPointKey = key;
  }
  // make key axis range scroll with the data (at a constant range size of 8):
  customPlot->xAxis->setRange(key+0.25, 20, Qt::AlignRight);
  customPlot->replot();

  // calculate frames per second:
  static double lastFpsKey;
  static int frameCount;
  ++frameCount;
  if (key-lastFpsKey > 2) // average fps over 2 seconds
  {
    //ui->statusBar->showMessage(
//          QString("%1 FPS, Total Data points: %2")
//          .arg(frameCount/(key-lastFpsKey), 0, 'f', 0)
//          .arg(ui->customPlot->graph(0)->data()->count()+ui->customPlot->graph(1)->data()->count())
//          , 0);
    lastFpsKey = key;
    frameCount = 0;
  }
}

上記のコードでは、プッシュボタンが押されたときに、メインウィンドウからグラフダイアログを呼び出したいと考えています。このコードを実行すると、関数でRealtimeDataGraph()

connect(&dataTimer, SIGNAL(timeout()), this, SLOT(realtimeDataSlot(QCustomPlot *)));

この行で、コンパイラは互換性のない送信側受信側を示しています。

データタイマーがタイムアウトすると、グラフダイアログが信号を受信する必要があると思います。それが受け入れられるかどうか、私には理解できません。誰かこのコードを見直して、スロットを呼び出す方法を教えてくださいrealtimeDataSlot()。

score 0 · Accepted Answer

QCustomPlot * ptr_CustomPlot; // pointer of QCustomPlot

//functions for plotting graph
void MainWindow::opengraph()
{
    QDialog* graphdialog = new QDialog;
    Ui::graph ui_graph ;
    ui_graph.setupUi(graphdialog);

    setGeometry(400, 250, 542, 390);
    setWindowTitle("Graph");
    ui_graph.customPlot->replot();
    RealtimeDataGraph(ui_graph.customPlot);
}

void MainWindow::RealtimeDataGraph(QCustomPlot *customPlot)
{
  ptr_CustomPlot = customPlot; // here, customPlot is saved to ptr_CustomPlot
  /* ... */

  // setup a timer that repeatedly calls MainWindow::realtimeDataSlot:
  connect(&dataTimer, SIGNAL(timeout()), this, SLOT(realtimeDataSlot()));

}

void MainWindow::realtimeDataSlot()
{
  /* use ptr_CustomPlot // here, ptr_CustomPlot is the same as customPlot which is also ui_graph.customPlot */
  /* ... */
}

Slot と Signal は、同じ数の引数と型を持つ必要があります。

qt - qtのメインウィンドウからダイアログを呼び出す方法は?

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