File indexing completed on 2024-04-28 15:29:29

 /*
     testplot_widget.cpp
     SPDX-FileCopyrightText: 2006 Jason Harris <kstars@30doradus.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include <QComboBox>
 #include <QPen>
 #include <QVBoxLayout>
 #include <math.h>
 
 #include "kplotaxis.h"
 #include "kplotobject.h"
 #include "kplotwidget.h"
 #include "testplot_widget.h"
 
 TestPlot::TestPlot(QWidget *p)
     : QMainWindow(p)
     , po1(nullptr)
     , po2(nullptr)
 {
     QWidget *w = new QWidget(this);
     vlay = new QVBoxLayout(w);
 
     PlotSelector = new QComboBox(w);
     PlotSelector->addItem(QStringLiteral("Points plot"));
     PlotSelector->addItem(QStringLiteral("Lines plot"));
     PlotSelector->addItem(QStringLiteral("Bars plot"));
     PlotSelector->addItem(QStringLiteral("Points plot with labels"));
     PlotSelector->addItem(QStringLiteral("Points, lines and bars"));
     PlotSelector->addItem(QStringLiteral("Points, lines and bars with labels"));
 
     plot = new KPlotWidget(w);
     plot->setMinimumSize(400, 400);
     plot->setAntialiasing(true);
     vlay->addWidget(PlotSelector);
     vlay->addWidget(plot);
 
     setCentralWidget(w);
 
     connect(PlotSelector, qOverload<int>(&QComboBox::activated), this, &TestPlot::slotSelectPlot);
 
     slotSelectPlot(PlotSelector->currentIndex());
 }
 
 void TestPlot::slotSelectPlot(int n)
 {
     plot->resetPlot();
 
     switch (n) {
     case 0: { // Points plot
         plot->setLimits(-6.0, 11.0, -10.0, 110.0);
 
         po1 = new KPlotObject(Qt::white, KPlotObject::Points, 4, KPlotObject::Asterisk);
         po2 = new KPlotObject(Qt::green, KPlotObject::Points, 4, KPlotObject::Triangle);
 
         for (float x = -5.0; x <= 10.0; x += 1.0) {
             po1->addPoint(x, x * x);
             po2->addPoint(x, 50.0 - 5.0 * x);
         }
 
         plot->addPlotObject(po1);
         plot->addPlotObject(po2);
 
         plot->update();
         break;
     }
 
     case 1: { // Lines plot
         plot->setLimits(-0.1, 6.38, -1.1, 1.1);
         plot->setSecondaryLimits(-5.73, 365.55, -1.1, 1.1);
         plot->axis(KPlotWidget::TopAxis)->setTickLabelsShown(true);
         plot->axis(KPlotWidget::BottomAxis)->setLabel(QStringLiteral("Angle [radians]"));
         plot->axis(KPlotWidget::TopAxis)->setLabel(QStringLiteral("Angle [degrees]"));
 
         po1 = new KPlotObject(Qt::red, KPlotObject::Lines, 2);
         po2 = new KPlotObject(Qt::cyan, KPlotObject::Lines, 2);
 
         for (float t = 0.0; t <= 6.28; t += 0.04) {
             po1->addPoint(t, sin(t));
             po2->addPoint(t, cos(t));
         }
 
         plot->addPlotObject(po1);
         plot->addPlotObject(po2);
 
         plot->update();
         break;
     }
 
     case 2: { // Bars plot
         plot->setLimits(-7.0, 7.0, -5.0, 105.0);
 
         po1 = new KPlotObject(Qt::white, KPlotObject::Bars, 2);
         po1->setBarBrush(QBrush(Qt::green, Qt::Dense4Pattern));
 
         for (float x = -6.5; x <= 6.5; x += 0.5) {
             po1->addPoint(x, 100 * exp(-0.5 * x * x), QLatin1String(""), 0.5);
         }
 
         plot->addPlotObject(po1);
 
         plot->update();
         break;
     }
 
     case 3: { // Points plot with labels
         plot->setLimits(-1.1, 1.1, -1.1, 1.1);
 
         po1 = new KPlotObject(Qt::yellow, KPlotObject::Points, 10, KPlotObject::Star);
         po1->setLabelPen(QPen(Qt::green));
 
         po1->addPoint(0.0, 0.8, QStringLiteral("North"));
         po1->addPoint(0.57, 0.57, QStringLiteral("Northeast"));
         po1->addPoint(0.8, 0.0, QStringLiteral("East"));
         po1->addPoint(0.57, -0.57, QStringLiteral("Southeast"));
         po1->addPoint(0.0, -0.8, QStringLiteral("South"));
         po1->addPoint(-0.57, -0.57, QStringLiteral("Southwest"));
         po1->addPoint(-0.8, 0.0, QStringLiteral("West"));
         po1->addPoint(-0.57, 0.57, QStringLiteral("Northwest"));
 
         plot->addPlotObject(po1);
 
         plot->update();
         break;
     }
 
     case 4: { // Points, Lines and Bars plot
         plot->setLimits(-2.1, 2.1, -0.1, 4.1);
 
         po1 = new KPlotObject(Qt::white, KPlotObject::Points, 10, KPlotObject::Pentagon);
 
         po1->setShowLines(true);
         po1->setShowBars(true);
         po1->setLabelPen(QPen(QColor("#AA8800")));
         po1->setLinePen(QPen(Qt::red, 3.0, Qt::DashDotLine));
         po1->setBarBrush(QBrush(Qt::blue, Qt::BDiagPattern));
 
         po1->addPoint(-1.75, 0.5);
         po1->addPoint(-1.25, 1.0);
         po1->addPoint(-0.75, 1.25);
         po1->addPoint(-0.25, 1.5);
         po1->addPoint(0.25, 2.5);
         po1->addPoint(0.75, 3.0);
         po1->addPoint(1.25, 1.5);
         po1->addPoint(1.75, 1.75);
 
         plot->addPlotObject(po1);
 
         update();
         break;
     }
 
     case 5: { // Points, Lines and Bars plot with labels
         plot->setLimits(-2.1, 2.1, -0.1, 4.1);
 
         po1 = new KPlotObject(Qt::white, KPlotObject::Points, 10, KPlotObject::Pentagon);
 
         po1->setShowLines(true);
         po1->setShowBars(true);
         po1->setLabelPen(QPen(QColor("#AA8800")));
         po1->setLinePen(QPen(Qt::red, 3.0, Qt::DashDotLine));
         po1->setBarBrush(QBrush(Qt::blue, Qt::BDiagPattern));
 
         po1->addPoint(-1.75, 0.5, QStringLiteral("A"));
         po1->addPoint(-1.25, 1.0, QStringLiteral("B"));
         po1->addPoint(-0.75, 1.25, QStringLiteral("C"));
         po1->addPoint(-0.25, 1.5, QStringLiteral("D"));
         po1->addPoint(0.25, 2.5, QStringLiteral("E"));
         po1->addPoint(0.75, 3.0, QStringLiteral("F"));
         po1->addPoint(1.25, 1.5, QStringLiteral("G"));
         po1->addPoint(1.75, 1.75, QStringLiteral("H"));
 
         plot->addPlotObject(po1);
 
         update();
         break;
     }
     }
 }
 
 #include "moc_testplot_widget.cpp"