mainwindow.cpp

/***************************************************************************
**                                                                        **
**  QCustomPlot, an easy to use, modern plotting widget for Qt            **
**  Copyright (C) 2011-2022 Emanuel Eichhammer                            **
**                                                                        **
**  This program is free software: you can redistribute it and/or modify  **
**  it under the terms of the GNU General Public License as published by  **
**  the Free Software Foundation, either version 3 of the License, or     **
**  (at your option) any later version.                                   **
**                                                                        **
**  This program is distributed in the hope that it will be useful,       **
**  but WITHOUT ANY WARRANTY; without even the implied warranty of        **
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         **
**  GNU General Public License for more details.                          **
**                                                                        **
**  You should have received a copy of the GNU General Public License     **
**  along with this program.  If not, see http://www.gnu.org/licenses/.   **
**                                                                        **
****************************************************************************
**           Author: Emanuel Eichhammer                                   **
**  Website/Contact: https://www.qcustomplot.com/                         **
**             Date: 06.11.22                                             **
**          Version: 2.1.1                                                **
****************************************************************************/
#include "mainwindow.h"
#include "ui_mainwindow.h"
//#include "qcustomplot.h"
#include <QDebug>
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
#include <QDesktopWidget>
#endif
#include <QScreen>
#include <QMessageBox>
#include <QMetaEnum>
#include <cmath>

MainWindow::MainWindow(QWidget *parent) :
  QMainWindow(parent),
  ui(new Ui::MainWindow)
{
  ui->setupUi(this);
  setGeometry(1000, 1000, 800, 500);
  setupDemo(0);
}

// 以下出力に関連プログラムのため編集禁止
void MainWindow::setupDemo(int demoIndex)
{
    switch (demoIndex)
    {
    case 0:  setupQuadraticDemo(ui->customPlot); break;
    }
    setWindowTitle("QCustomPlot: "+demoName);
    statusBar()->clearMessage();
    currentDemoIndex = demoIndex;
    ui->customPlot->replot();
}

void MainWindow::realtimeDataSlot()
{
  static QTime timeStart = QTime::currentTime();
  // calculate two new data points:
  double key = timeStart.msecsTo(QTime::currentTime())/1000.0; // time elapsed since start of demo, in seconds
  static double lastPointKey = 0;
  if (key-lastPointKey > 0.002) // at most add point every 2 ms
  {
    // add data to lines:
    ui->customPlot->graph(0)->addData(key, qSin(key)+std::rand()/(double)RAND_MAX*1*qSin(key/0.3843));
    ui->customPlot->graph(1)->addData(key, qCos(key)+std::rand()/(double)RAND_MAX*0.5*qSin(key/0.4364));
    lastPointKey = key;
  }
  // make key axis range scroll with the data (at a constant range size of 8):
  ui->customPlot->xAxis->setRange(key, 8, Qt::AlignRight);
  ui->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()->size()+ui->customPlot->graph(1)->data()->size())
          , 0);
    lastFpsKey = key;
    frameCount = 0;
  }
}

void MainWindow::bracketDataSlot()
{
 double secs = QCPAxisTickerDateTime::dateTimeToKey(QDateTime::currentDateTime());
  
//update data to make phase move:
int n = 500;
double phase = secs*5;
double k = 3;
QVector<double> x(n), y(n);
for (int i=0; i<n; ++i)
 {
   x[i] = i/(double)(n-1)*34 - 17;
   y[i] = qExp(-x[i]*x[i]/20.0)*qSin(k*x[i]+phase);
}
ui->customPlot->graph()->setData(x, y);
  
 itemDemoPhaseTracer->setGraphKey((8*M_PI+fmod(M_PI*1.5-phase, 6*M_PI))/k);
  
  ui->customPlot->replot();
  
  // calculate frames per second:
  double key = secs;
  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()->size())
          , 0);
    lastFpsKey = key;
   frameCount = 0;
  }
}

void MainWindow::setupPlayground(QCustomPlot *customPlot)
{
  Q_UNUSED(customPlot)
}

MainWindow::~MainWindow()
{
  delete ui;
}

void MainWindow::screenShot()
{
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
  QPixmap pm = QPixmap::grabWindow(qApp->desktop()->winId(), this->x()+2, this->y()+2, this->frameGeometry().width()-4, this->frameGeometry().height()-4);
#elif QT_VERSION < QT_VERSION_CHECK(5, 5, 0)
  QPixmap pm = qApp->primaryScreen()->grabWindow(qApp->desktop()->winId(), this->x()+2, this->y()+2, this->frameGeometry().width()-4, this->frameGeometry().height()-4);
#elif QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
  QPixmap pm = qApp->primaryScreen()->grabWindow(qApp->desktop()->winId(), this->x()-7, this->y()-7, this->frameGeometry().width()+14, this->frameGeometry().height()+14);
#else
  QPixmap pm = qApp->primaryScreen()->grabWindow(0, this->x()-7, this->y()-7, this->frameGeometry().width()+14, this->frameGeometry().height()+14);
#endif
  QString fileName = demoName.toLower()+".png";
  fileName.replace(" ", "");
  pm.save("./screenshots/"+fileName);
  qApp->quit();
}

void MainWindow::allScreenShots()
{
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
  QPixmap pm = QPixmap::grabWindow(qApp->desktop()->winId(), this->x()+2, this->y()+2, this->frameGeometry().width()-4, this->frameGeometry().height()-4);
#elif QT_VERSION < QT_VERSION_CHECK(5, 5, 0)
  QPixmap pm = qApp->primaryScreen()->grabWindow(qApp->desktop()->winId(), this->x()+2, this->y()+2, this->frameGeometry().width()-4, this->frameGeometry().height()-4);
#elif QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
  QPixmap pm = qApp->primaryScreen()->grabWindow(qApp->desktop()->winId(), this->x()-7, this->y()-7, this->frameGeometry().width()+14, this->frameGeometry().height()+14);
#else
  QPixmap pm = qApp->primaryScreen()->grabWindow(0, this->x()-7, this->y()-7, this->frameGeometry().width()+14, this->frameGeometry().height()+14);
#endif
  QString fileName = demoName.toLower()+".png";
  fileName.replace(" ", "");
  pm.save("./screenshots/"+fileName);
  
  if (currentDemoIndex < 19)
  {
    if (dataTimer.isActive())
      dataTimer.stop();
    dataTimer.disconnect();
    delete ui->customPlot;
    ui->customPlot = new QCustomPlot(ui->centralWidget);
    ui->verticalLayout->addWidget(ui->customPlot);
    setupDemo(currentDemoIndex+1);
    // setup delay for demos that need time to develop proper look:
    int delay = 250;
    if (currentDemoIndex == 10) // Next is Realtime data demo
      delay = 12000;
    else if (currentDemoIndex == 15) // Next is Item demo
      delay = 5000;
    QTimer::singleShot(delay, this, SLOT(allScreenShots()));
  } else
  {
    qApp->quit();
  }
}