Article directory
- Effect
- ui settings
- dialog.h
- dialog.cpp
Effect
ui settings
dialog.h
#ifndef DIALOG_H
#define DIALOG_H
#include <QDialog>
#include <QtCharts>
#include <QLineSeries>
#include <QGraphicsScene>
#include <QTimer>
#include <QSplineSeries>
QT_BEGIN_NAMESPACE
namespace Ui {<!-- --> class Dialog; }
QT_END_NAMESPACE
class Dialog : public QDialog
{<!-- -->
Q_OBJECT
public:
Dialog(QWidget *parent = nullptr);
~Dialog();
private:
Ui::Dialog *ui;
private:
/**
* @brief Get data and internally simulate production change data
* @param[in]x X coordinate
* @return the data corresponding to x
*/
qreal getData_1(qreal x);
qreal getData_2(qreal x);
/**
* @brief set style
*
*/
void changeStyle();
/**
* @brief Set the form palette
*
*/
void setDialogPalette();
public:
QChart* m_chart;//Build chart object
QSplineSeries* m_splineSerise1;
QSplineSeries* m_splineSerise2;
QGraphicsScene* m_pScene;
QTimer* m_timer;//Timer
QValueAxis* m_axisX;//X coordinate axis
QValueAxis* m_axisY;//Y coordinate axis
qint64 m_tmLast;//The last time the timer entered
public slots:
};
#endif // DIALOG_H
dialog.cpp
#include "dialog.h"
#include "ui_dialog.h"
#include <QString>
const quint32 c_MaxSize=1000;//Number of data
Dialog::Dialog(QWidget *parent)
: QDialog(parent)
, ui(new Ui::Dialog)
,m_tmLast(0)
,m_splineSerise1(NULL)
,m_splineSerise2(NULL)
{<!-- -->
ui->setupUi(this);
//setWindowFlags(Qt::FramelessWindowHint);
//Construct curve series
m_splineSerise1=new QSplineSeries(this);
m_splineSerise2=new QSplineSeries(this);
//Add data to the polyline, curve one
qint32 i=0;
qreal x=0.f;
for (i=0;i<c_MaxSize;i + + )
{<!-- -->
x=i*1.f/c_MaxSize;
m_splineSerise1->append(i,getData_1(x));
}
//Add data to the polyline, curve two
for ( i=0;i<c_MaxSize;i + + )
{<!-- -->
x=i*1.f/c_MaxSize;
m_splineSerise2->append(i,getData_2(x));
}
//Build icon object
m_chart=new QChart();
//Note: add it to the chart first and then create the coordinate axis, otherwise it will be invalid
//Build the coordinate axis
m_axisX = new QValueAxis();
m_axisX->setRange(0,c_MaxSize);
m_axisX->setTitleText(QString::fromLocal8Bit("Time"));//Set the title
m_axisX->setLabelFormat("%g");//Set the format
m_axisX->setTickCount(5);//Set the number of ticks
m_axisY= new QValueAxis();
m_axisY->setRange(-10,10);
m_axisY->setTitleText(QString::fromLocal8Bit("T"));
//Bind the coordinate axis
m_chart->setAxisX(m_axisX,m_splineSerise1);
m_chart->setAxisY(m_axisY,m_splineSerise1);
m_chart->setAxisX(m_axisX,m_splineSerise2);
m_chart->setAxisY(m_axisY,m_splineSerise2);
//hide legend
m_chart->legend()->hide();
//Set icon theme
m_chart->setTheme(QtCharts::QChart::ChartThemeBlueCerulean);
//Set title
m_chart->setTitle(QString("Chart 1"));
//Set size
m_chart->setGeometry(0,0,500,300);
//Build the scene
m_pScene =new QGraphicsScene(this);
//Build the scene for the view
ui->graphicsView->setScene(m_pScene);
//Add the chart to the scene
m_pScene->addItem(m_chart);
//Set anti-aliasing
ui->graphicsView->setRenderHint(QPainter::Antialiasing,true);
//Set style
changeStyle();
//1. Add the line series to the chart
m_chart->addSeries(m_splineSerise1);
m_chart->addSeries(m_splineSerise2);
}
Dialog::~Dialog()
{<!-- -->
delete ui;
}
qreal Dialog::getData_1(qreal x)
{<!-- -->
return qSin(x*2*M_PI)*7;//Sine
}
qreal Dialog::getData_2(qreal x)
{<!-- -->
return qCos(x*2*M_PI)*7;//Cosine
}
void Dialog::changeStyle()
{<!-- -->
/**
* Modify form
*
*/
//Set the color palette according to the chart's theme
setDialogPalette();
/**
* Modify chart
*
*/
m_chart->setBackgroundVisible(true);
//m_chart->setBackgroundBrush(Qt::transparent);//Set to transparent
m_chart->setBackgroundBrush(Qt::lightGray);
QPen penBackground;
penBackground.setStyle(Qt::DotLine);
penBackground.setColor(Qt::green);
m_chart->setBackgroundPen(penBackground);
/**
* Modify drawing area
*
*/
m_chart->setPlotAreaBackgroundVisible(true);
m_chart->setPlotAreaBackgroundBrush(Qt::gray);
/**
* Modify title
*
*/
QFont fontTitle;
fontTitle.setFamily(QString::fromLocal8Bit("Chinese Amber"));
fontTitle.setPointSizeF(20.f);
m_chart->setTitleFont(fontTitle);
//Set text color
m_chart->setTitleBrush(Qt::black);
/**
* Modify scale
*
*/
//Set the scale
QFont fontAxis;
fontAxis.setFamily(QString::fromLocal8Bit("Microsoft Yahei"));
fontAxis.setPointSizeF(12.f);
m_axisX->setTitleFont(fontAxis);
m_axisY->setTitleFont(fontAxis);
//Set text color
m_axisX->setTitleBrush(Qt::darkMagenta);
m_axisY->setTitleBrush(Qt::darkMagenta);
//Set whether to display tick marks
m_axisX->setGridLineVisible(true);
m_axisY->setGridLineVisible(true);
//Set the font coordinate axis
QFont fontLabel;
fontLabel.setFamily(QStringLiteral("Microsoft Yahei"));
fontLabel.setPixelSize(12);
m_axisX->setLabelsFont(fontLabel);
m_axisY->setLabelsFont(fontLabel);
/**
* Modify legend
*
*/
//Alignment
m_chart->legend()->setAlignment(Qt::AlignLeft);
/**
* series
*
*/
QPen pn1(Qt::green,2.f);
m_splineSerise1->setPen(pn1);
QPen pn2(Qt::cyan,2.f);
m_splineSerise2->setPen(pn2);
/**
* Turn on animation
*
*/
QChart::AnimationOptions aniOptions=QChart::AllAnimations;
m_chart->setAnimationOptions(aniOptions);
}
void Dialog::setDialogPalette()
{<!-- -->
QChart::ChartTheme theme=QChart::ChartThemeBlueIcy;
m_chart->setTheme(theme);
//Determine the Dialog's color palette based on the selected theme
QPalette pal=window()->palette();
switch(theme)
{<!-- -->
case QtCharts::QChart::ChartThemeLight:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
case QtCharts::QChart::ChartThemeBlueCerulean:
pal.setColor(QPalette::Window,QRgb(0x121218));
pal.setColor(QPalette::WindowText,QRgb(0x6d6d6));
break;
case QtCharts::QChart::ChartThemeDark:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
case QtCharts::QChart::ChartThemeBrownSand:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
case QtCharts::QChart::ChartThemeBlueNcs:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
case QtCharts::QChart::ChartThemeHighContrast:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
case QtCharts::QChart::ChartThemeBlueIcy:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
case QtCharts::QChart::ChartThemeQt:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
default:
pal.setColor(QPalette::Window,QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText,QRgb(0x404040));
break;
}
window()->setPalette(pal);
}
