(C++) LibcvautomationExample5

 

 

libcvautomation example 5: basic Qt GUI is a libcvautomation example of a Qt Creator project with a basic GUI to give commands.

 

• View a screenshot of 'CppLibcvautomationExample5' (png)
• Download the Qt Creator project 'CppLibcvautomationExample5' (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++11

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: ./CppLibcvautomationExample5/CppLibcvautomationExample5.pro

 

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QT       += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TEMPLATE = app SOURCES += \     main.cpp \     qtdialog.cpp HEADERS  += \   qtdialog.h FORMS    += qtdialog.ui QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Werror # # # libcvautomation # # add path to #include paths, link statically to code # # INCLUDEPATH += ../../Libraries/libcvautomation/include SOURCES += \     ../../Libraries/libcvautomation/libcvautomation/libcvautomation-xtest.c \     ../../Libraries/libcvautomation/libcvautomation/libcvautomation-xlib.c \     ../../Libraries/libcvautomation/libcvautomation/libcvautomation-opencv.c # Link to X11 library # undefined reference to `XOpenDisplay' LIBS += -lX11 # Link to Xtst library # undefined reference to `XTestQueryExtension' LIBS += -lXtst # Link to OpenCV library # undefined reference to `cvFree_' unix {    CONFIG += link_pkgconfig    PKGCONFIG += opencv }

 

 

 

 

 

./CppLibcvautomationExample5/main.cpp

 

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#include "qtdialog.h" #include <QApplication> int main(int argc, char *argv[]) {   QApplication a(argc, argv);   QtDialog w;   w.show();      return a.exec(); }

 

 

 

 

 

./CppLibcvautomationExample5/qtdialog.h

 

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#ifndef QTDIALOG_H #define QTDIALOG_H #include <QDialog> namespace Ui {   class QtDialog; } class QtDialog : public QDialog {   Q_OBJECT    public:   explicit QtDialog(QWidget *parent = 0);   ~QtDialog();    private slots:   void on_button_clicked(); private:   Ui::QtDialog *ui;   //From http://www.richelbilderbeek.nl/CppSeperateString.htm   static const std::vector<std::string> SeperateString(     const std::string& input,     const char seperator); }; #endif // QTDIALOG_H

 

 

 

 

 

./CppLibcvautomationExample5/qtdialog.cpp

 

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#include "qtdialog.h" #include <string> #include <vector> #include <boost/algorithm/string/split.hpp> #include <boost/lexical_cast.hpp> #include "ui_qtdialog.h" //#include <X11/keysymdef.h> //To find keymap extern "C" {   #include "libcvautomation/libcvautomation.h" } QtDialog::QtDialog(QWidget *parent) :   QDialog(parent),   ui(new Ui::QtDialog) {   ui->setupUi(this); } QtDialog::~QtDialog() {   delete ui; } void QtDialog::on_button_clicked() {   #ifdef OLD_SKOOL_APPROACH_THAT_WORKS   const std::string display_location = "";   Display * const display = XOpenDisplay( display_location.c_str() );   assert(display);   const std::string command_str = "mousexy 100 100";   char * const command = new char[ command_str.size() + 1 ];   strcpy(command,&command_str[0]);   xte_commandString(display,command,1,0,std::numeric_limits<int>().max(),1);   XCloseDisplay( display );   delete[] command;   #endif   ui->output->clear();   const std::string text = ui->input->toPlainText().toStdString();   const std::vector<std::string> lines = SeperateString(text,'\n');   for (const std::string& line: lines)   {     //Open a display (whatever that may be)     const std::string display_location = "";     Display * const display = XOpenDisplay( display_location.c_str() );     assert(display);     //Convert the line (with the command) to a C style string     char * const command = new char[ line.size() + 1 ];     strcpy(command,&line[0]);     //Run the command     const cvaPoint p = xte_commandString(display,command,1,0,std::numeric_limits<int>().max(),1);     //Close the display (whatever that may be)     XCloseDisplay( display );     //Don't forget to delete a C-style string :-(     delete[] command;     //Give some feedback     std::stringstream s;     s << "Execute command: '" << line << "': ";     if (p.x == -2 && p.y == -2)     {       s << "OK";     }     else     {       s << "(" << p.x << "," << p.y << ")";     }     ui->output->appendPlainText(s.str().c_str());   }   //Show the display again, when a mouseclick has caused it to hide   this->hide();   this->show(); } const std::vector<std::string> QtDialog::SeperateString(   const std::string& input,   const char seperator) {   std::vector<std::string> v;   boost::algorithm::split(v,input,     std::bind2nd(std::equal_to<char>(),seperator),     boost::algorithm::token_compress_on);   return v; }