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removed old barlabel implementation
removed old barlabel implementation

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splinewidget.cpp
102 lines | 2.7 KiB | text/x-c | CppLexer
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Spline working somewhat
r401 #include "splinewidget.h"
#include "qchartview.h"
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Spline with problems
r419 #include "qlineseries.h"
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r401 #include <QGridLayout>
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r431 #include <QPushButton>
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r434 #include "qchartaxis.h"
#include <qmath.h>
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r401
QTCOMMERCIALCHART_USE_NAMESPACE
SplineWidget::SplineWidget(QWidget *parent)
: QWidget(parent)
{
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Minor cleanup
r457 // qsrand(time(NULL));
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r434 //! [1]
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r401 //create QSplineSeries
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Spline series fix
r450 series = new QSplineSeries;
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r434 //! [1]
//! [2]
// customize the series presentation settings
QPen seriesPen(Qt::blue);
seriesPen.setWidth(3);
series->setPen(seriesPen);
//! [2]
//! [add points to series]
//add data points to the series
Marek Rosa
Added automatic refresh of control points on add/remove point. Spline example updated
r431 series->add(QPointF(150, 100));
series->add(QPointF(200, 130));
series->add(QPointF(250, 120));
series->add(QPointF(300, 140));
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r434 series->add(QPointF(350, 160));
//! [add points to series]
// series->add(QPointF(400, 120));
// series->add(QPointF(450, 150));
// series->add(QPointF(500, 145));
// series->add(QPointF(550, 170));
// series->add(QPointF(600, 190));
// series->add(QPointF(650, 210));
// series->add(QPointF(700, 190));
// series->add(QPointF(750, 180));
// series->add(QPointF(800, 170));
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r401
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r434 //! [3]
// create chart view
QChartView* chart = new QChartView;
chart->addSeries(series);
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r401
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Spline series fix
r450 chart->setChartTitle("Spline chart example");
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Renamed SplinePresenter to SplineChartItem
r460 chart->axisX()->setMax(1500);
chart->axisY()->setMax(500);
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r401
chart->setMinimumSize(800,600);
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r434 //! [3]
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r431
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r434 //! [4]
//add new data point button
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r431 QPushButton* addButton = new QPushButton("Add new point");
connect(addButton, SIGNAL(clicked()), this, SLOT(addNewPoint()));
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Spline chart example added
r434 // remove the last data point in the series
QPushButton* removeButton = new QPushButton("Remove point");
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r431 connect(removeButton, SIGNAL(clicked()), this, SLOT(removePoint()));
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r434 //! [4]
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r431
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r434 //! [5]
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r431 //butttons layout
QVBoxLayout* buttonsLayout = new QVBoxLayout;
buttonsLayout->addWidget(addButton);
buttonsLayout->addWidget(removeButton);
buttonsLayout->addStretch();
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r401
QGridLayout* mainLayout = new QGridLayout;
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r431 mainLayout->addWidget(chart, 1, 0);
mainLayout->addLayout(buttonsLayout, 1, 1);
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r401 setLayout(mainLayout);
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r434 //! [5]
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r401 }
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r434 //! [add point]
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r431 void SplineWidget::addNewPoint()
{
if (series->count() > 0)
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Renamed SplinePresenter to SplineChartItem
r460 series->add(QPointF(series->x(series->count() - 1) + 40 + qrand()%40, qAbs(series->y(series->count() - 1) - 50 + qrand()%100)));
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r431 else
series->add(QPointF(50, 50 + qrand()%50));
}
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Spline chart example added
r434 //! [add point]
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r431
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Spline chart example added
r434 //! [remove point]
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r431 void SplineWidget::removePoint()
{
if (series->count() > 0)
series->remove(QPointF(series->x(series->count() - 1), series->y(series->count() - 1)));
}
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Spline chart example added
r434 //! [remove point]
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r431
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Spline working somewhat
r401 SplineWidget::~SplineWidget()
{
}