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#include "splinewidget.h"
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#include "qchartview.h"
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#include "qlineseries.h"
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#include <QGridLayout>
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#include <QPushButton>
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QTCOMMERCIALCHART_USE_NAMESPACE
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SplineWidget::SplineWidget(QWidget *parent)
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: QWidget(parent)
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{
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//create QSplineSeries
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series = new QSplineSeries(this);
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series->add(QPointF(150, 100));
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series->add(QPointF(200, 130));
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series->add(QPointF(250, 120));
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series->add(QPointF(300, 140));
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series->add(QPointF(350, 100));
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series->add(QPointF(400, 120));
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series->add(QPointF(450, 150));
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// series->add(QPointF(600, 150));
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series->add(QPointF(500, 145));
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series->add(QPointF(550, 170));
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series->add(QPointF(600, 190));
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series->add(QPointF(650, 210));
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series->add(QPointF(700, 190));
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series->add(QPointF(750, 180));
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series->add(QPointF(800, 170));
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// series->calculateControlPoints();
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QSplineSeries* series2 = new QSplineSeries(this);
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qsrand(time(NULL));
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// for (int i = 0; i < 100; i++)
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// {
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// series2->add(QPointF(i*7, qrand()%600));
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// }
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int k = 10;
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for (int i = 0; i < 25; i++)
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{
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if (k > 60)
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{
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k = 10;
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}
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series2->add(QPointF(i*50, k));
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k +=10;
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}
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// series2->calculateControlPoints();
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// QLineSeries* lineSeries = new QLineSeries;
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// for (int i = 0; i < series->count() - 1; i++)
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// {
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// lineSeries->add(series->at(i).x(), series->at(i).y());
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// lineSeries->add(series->controlPoint(2*i).x(), series->controlPoint(2*i).y());
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// lineSeries->add(series->controlPoint(2*i + 1).x(), series->controlPoint(2*i + 1).y());
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// }
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// QLineChartSeries* lineSeries2 = new QLineChartSeries;
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// lineSeries2->add(10, 50);
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// lineSeries2->add(30, 15);
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// lineSeries2->add(60, 40);
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// lineSeries2->add(90, 70);
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// lineSeries2->add(100, 20);
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//create chart view
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QChartView* chart = new QChartView;
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chart->setMinimumSize(800,600);
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// chart->setGeometry(50, 50, 400, 300);
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chart->addSeries(series);
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chart->addSeries(series2);
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//add new item
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QPushButton* addButton = new QPushButton("Add new point");
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connect(addButton, SIGNAL(clicked()), this, SLOT(addNewPoint()));
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QPushButton* removeButton = new QPushButton("Remove point from the end");
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connect(removeButton, SIGNAL(clicked()), this, SLOT(removePoint()));
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//butttons layout
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QVBoxLayout* buttonsLayout = new QVBoxLayout;
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buttonsLayout->addWidget(addButton);
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buttonsLayout->addWidget(removeButton);
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buttonsLayout->addStretch();
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QGridLayout* mainLayout = new QGridLayout;
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mainLayout->addWidget(chart, 1, 0);
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mainLayout->addLayout(buttonsLayout, 1, 1);
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setLayout(mainLayout);
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}
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void SplineWidget::addNewPoint()
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{
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if (series->count() > 0)
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series->add(QPointF(series->x(series->count() - 1) + 50, series->y(series->count() - 1) - 50 + qrand()%100));
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else
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series->add(QPointF(50, 50 + qrand()%50));
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}
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void SplineWidget::removePoint()
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{
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if (series->count() > 0)
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series->remove(QPointF(series->x(series->count() - 1), series->y(series->count() - 1)));
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}
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SplineWidget::~SplineWidget()
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{
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}
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