(C++) HelloQwtQtCreatorLubuntu

 

 

Hello Qwt using Qt Creator under Lubuntu is a Hello Qwt program.

 

• Download the Qt Creator project 'CppHelloQwtQtCreatorLubuntu' (zip)

Technical facts

 

Application type(s)

• Desktop application

Operating system(s) or programming environment(s)

• Lubuntu 15.04 (vivid)

IDE(s):

• Qt Creator 3.1.1

Project type:

• GUI application

C++ standard:

• C++98

Compiler(s):

• G++ 4.9.2

Libraries used:

• Qt: version 5.4.1 (32 bit)
• STL: GNU ISO C++ Library, version 4.9.2

 

 

 

 

 

Qt project file: ./CppHelloQwtQtCreatorLubuntu/CppHelloQwtQtCreatorLubuntu.pro

 

---

QT       += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TEMPLATE = app SOURCES += main.cpp QMAKE_CXXFLAGS += -Wall -Wextra -Werror INCLUDEPATH += /usr/include/qwt-qt4 INCLUDEPATH += /usr/include/qwt #LIBS += -lqwt-qt4 LIBS += -L/usr/lib/qwt -lqwt

 

 

 

 

 

./CppHelloQwtQtCreatorLubuntu/main.cpp

 

---

#include <cassert> #include <cmath> #include <string> #include <string> #include <sstream> #include <QLabel> #include <QVBoxLayout> #include <QApplication> #include <qwt_plot.h> #include <qwt_plot_curve.h> #include <qwt_text.h> int main(int argc, char *argv[]) {   QApplication a(argc, argv);   QwtPlotCurve * const m_curve = new QwtPlotCurve("Sine");   QwtPlot * const m_plot = new QwtPlot(QwtText("CppHelloQwtQtCreatorLubuntu"));   m_plot->setGeometry(0,0,640,400);   m_plot->setAxisScale(QwtPlot::xBottom, 0.0,2.0 * M_PI);   m_plot->setAxisScale(QwtPlot::yLeft,-1.0,1.0);   std::vector<double> xs;   std::vector<double> ys;   for (double x = 0; x < 2.0 * M_PI; x+=(M_PI / 10.0))   {     xs.push_back(x);     ys.push_back(std::sin(x));   }   QwtPointArrayData * const data = new QwtPointArrayData(&xs[0],&ys[0],xs.size());   m_curve->setData(data);   m_curve->attach(m_plot);   m_plot->replot();   m_plot->show();   return a.exec(); }

 

 

 

 

 

./CppHelloQwtQtCreatorLubuntu/CppHelloQwtQtCreatorLubuntu.sh

 

---

#!/bin/bash myfile="qmake" mytarget="CppHelloQwtQtCreatorLubuntu" myprofile=$mytarget.pro if [ ! -e $myprofile ] then   echo "Qt Creator project '$myprofile' not found"   exit fi $myfile $myprofile if [ ! -e Makefile ] then   echo "FAIL: $myfile $myprofile"   exit fi make if [ -e $mytarget ] then   echo $mytarget": SUCCESS" else   echo $mytarget": FAIL" fi #Cleaning up rm *.o rm Makefile rm $mytarget