##// END OF EJS Templates
Fixed paint and mouse event issues with QLineSeries...
Fixed paint and mouse event issues with QLineSeries 1. The bounding rectangle of QLineSeries item did not take line width into account; this caused paint issues if the width is bigger than 1. 2. The width of the shape of the item was always 1. This caused problems with mouse events; onClicked was not always signaled, even if you click on top (but not in the middle of) a thick line series.

File last commit:

r1712:0c76e21b1f34
r1791:877b494897a0
Show More
main.cpp
121 lines | 3.3 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QApplication>
#include <QMainWindow>
#include <QChartView>
#include <QLineSeries>
#include <QIntervalsAxis>
QTCOMMERCIALCHART_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
//![1]
QLineSeries* series = new QLineSeries();
*series << QPointF(0, 6) << QPointF(9, 4) << QPointF(15, 20) << QPointF(25, 12) << QPointF(29, 26);
QChart* chart = new QChart();
chart->legend()->hide();
chart->addSeries(series);
//![1]
//![2]
// Customize series
QPen pen(QRgb(0xfdb157));
pen.setWidth(5);
series->setPen(pen);
// Customize chart title
QFont font;
font.setPixelSize(18);
chart->setTitleFont(font);
chart->setTitleBrush(QBrush(Qt::white));
chart->setTitle("Customchart example");
// Customize chart background
QLinearGradient backgroundGradient;
backgroundGradient.setStart(QPointF(0,0));
backgroundGradient.setFinalStop(QPointF(0,1));
backgroundGradient.setColorAt(0.0, QRgb(0xd2d0d1));
backgroundGradient.setColorAt(1.0, QRgb(0x4c4547));
backgroundGradient.setCoordinateMode(QGradient::ObjectBoundingMode);
chart->setBackgroundBrush(backgroundGradient);
//![2]
//![3]
QIntervalsAxis* axisX = new QIntervalsAxis();
QIntervalsAxis* axisY = new QIntervalsAxis();
// Customize axis label font
QFont labelsFont;
labelsFont.setPixelSize(12);
axisX->setLabelsFont(labelsFont);
axisY->setLabelsFont(labelsFont);
// Customize axis colors
QPen axisPen(QRgb(0xd18952));
axisPen.setWidth(2);
axisX->setAxisPen(axisPen);
axisY->setAxisPen(axisPen);
// Customize axis label colors
QBrush axisBrush(Qt::white);
axisX->setLabelsBrush(axisBrush);
axisY->setLabelsBrush(axisBrush);
// Customize grid lines and shades
axisX->setGridLineVisible(false);
axisY->setGridLineVisible(false);
axisY->setShadesPen(Qt::NoPen);
axisY->setShadesBrush(QBrush(QRgb(0xa5a2a3)));
axisY->setShadesVisible(true);
//![3]
//![4]
axisX->append("low", 10);
axisX->append("optimal", 20);
axisX->append("high", 30);
axisX->setRange(0, 30);
axisY->append("slow", 10);
axisY->append("med", 20);
axisY->append("fast", 30);
axisY->setRange(0, 30);
chart->setAxisX(axisX, series);
chart->setAxisY(axisY, series);
//![4]
//![5]
QChartView* chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
//![5]
//![6]
QMainWindow window;
window.setCentralWidget(chartView);
window.resize(400, 300);
window.show();
//![6]
return a.exec();
}