(C++) CppWtChat1
January 25, 2018 · View on GitHub
CppWtChat1 is an example of a Wt chat application that is as simple as possible, except for showing About information.
Technical facts
Operating system(s) or programming environment(s)
Ubuntu 10.10 (maverick)
Qt Creator 2.0.1
- G++ 4.4.5
Libraries used:
Qt project file: CppWtChat1.pro
#------------------------------------------------- # # Project created by QtCreator 2011-04-10T11:16:42 # #------------------------------------------------- QT += core QT -= gui LIBS += -lwt -lwthttp -lboost_program_options QMAKE_CXXFLAGS += -DNDEBUG TARGET = CppWtChat1 CONFIG += console CONFIG -= app_bundle TEMPLATE = app INCLUDEPATH += \ ../../Classes/CppAbout \ ../../Classes/CppWtAboutDialog SOURCES += wtmain.cpp \ wtchat1dialog.cpp \ ../../Classes/CppAbout/about.cpp \ ../../Classes/CppWtAboutDialog/wtaboutdialog.cpp HEADERS += \ wtchat1dialog.cpp \ ../../Classes/CppAbout/about.h \ ../../Classes/CppWtAboutDialog/wtaboutdialog.h
wtchat1dialog.cpp
//--------------------------------------------------------------------------- /* WtChat, chatting server Copyright 2011 Richel Bilderbeek This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ //--------------------------------------------------------------------------- //From http://www.richelbilderbeek.nl/CppWtChat1.htm //--------------------------------------------------------------------------- #include <fstream> //--------------------------------------------------------------------------- #include <boost/filesystem.hpp> #include <boost/foreach.hpp> //--------------------------------------------------------------------------- #include <Wt/WApplication> #include <Wt/WBreak> #include <Wt/WLabel> #include <Wt/WLineEdit> #include <Wt/WTextArea> #include <Wt/WTimer> //--------------------------------------------------------------------------- #include "about.h" #include "wtaboutdialog.h" #include "wtchat1dialog.h" //--------------------------------------------------------------------------- const std::string WtChat1Dialog::m_chat_filename = "toolwtchat.txt"; //--------------------------------------------------------------------------- WtChat1Dialog::WtChat1Dialog() { this->setContentAlignment(Wt::AlignCenter); ShowChat(); } //--------------------------------------------------------------------------- ///FileToVector reads a file and converts it to a std::vector<std::string> ///From http://www.richelbilderbeek.nl/CppFileToVector.htm const std::vector<std::string> WtChat1Dialog::FileToVector(const std::string& filename) { assert(!boost::filesystem::exists(m_chat_filename)); std::vector<std::string> v; std::ifstream in(filename.c_str()); std::string s; for (int i=0; !in.eof(); ++i) { std::getline(in,s); v.push_back(s); } return v; } //--------------------------------------------------------------------------- const About WtChat1Dialog::GetAbout() { About a( "Richel Bilderbeek", "WtChat1", "very simple chatting server", "the 12th of April 2011", "2011", "http://www.richelbilderbeek.nl/CppWtChat1.htm", GetVersion(), GetVersionHistory()); //a.AddLibrary("Encranger version: " + Encranger::GetVersion()); //a.AddLibrary("LoopReader version: " + LoopReader<int>::GetVersion()); return a; } //--------------------------------------------------------------------------- const std::string WtChat1Dialog::GetVersion() { return "1.0"; } //--------------------------------------------------------------------------- const std::vector<std::string> WtChat1Dialog::GetVersionHistory() { std::vector<std::string> v; v.push_back("2011-04-12: Version 1.0: initial version"); return v; } //--------------------------------------------------------------------------- void WtChat1Dialog::OnAboutClick() { m_timer->stop(); ShowAbout(); } //--------------------------------------------------------------------------- void WtChat1Dialog::OnCloseClick() { m_signal_close(); } //--------------------------------------------------------------------------- void WtChat1Dialog::OnEditChange() { if (m_edit->text().empty()) return; const std::string new_text = m_text->text().toUTF8() + boost::lexical_cast<std::string>('\n') + m_edit->text().toUTF8(); { std::ofstream f(m_chat_filename.c_str()); f << new_text; } m_text->setText(new_text); m_edit->setText(""); } //--------------------------------------------------------------------------- void WtChat1Dialog::OnTimer() { if (!boost::filesystem::exists(m_chat_filename)) return; const std::vector<std::string> v = FileToVector(m_chat_filename); std::string text; BOOST_FOREACH(const std::string s,v) { if(s.empty()) continue; text+=s; text+='\n'; } if (!text.empty()) text.resize(text.size() - 1); //pop '\n' m_text->setText(text); } //--------------------------------------------------------------------------- void WtChat1Dialog::ShowAbout() { About a = GetAbout(); WtAboutDialog * const d = new WtAboutDialog(a); d->m_signal_close.connect( boost::bind( &WtChat1Dialog::ShowChat, this)); this->clear(); this->addWidget(d); } //--------------------------------------------------------------------------- void WtChat1Dialog::ShowChat() { this->clear(); //Title { Wt::WLabel * const title = new Wt::WLabel("WtChat1"); title->setStyleClass("title"); this->addWidget(title); } this->addWidget(new Wt::WBreak); { m_text = new Wt::WTextArea; this->addWidget(m_text); } this->addWidget(new Wt::WBreak); { m_edit = new Wt::WLineEdit; m_edit->changed().connect( this, &WtChat1Dialog::OnEditChange); this->addWidget(m_edit); } this->addWidget(new Wt::WBreak); //About button { Wt::WPushButton * const button = new Wt::WPushButton("About"); button->clicked().connect( this, &WtChat1Dialog::OnAboutClick); this->addWidget(button); } //Close button { Wt::WPushButton * const button = new Wt::WPushButton("Close"); button->clicked().connect( this, &WtChat1Dialog::OnCloseClick); this->addWidget(button); } m_timer = new Wt::WTimer; m_timer->setInterval(1000); m_timer->start(); m_timer->timeout().connect( this, &WtChat1Dialog::OnTimer); } //---------------------------------------------------------------------------
wtchat1dialog.h
//--------------------------------------------------------------------------- /* WtChat, chatting server Copyright 2011 Richel Bilderbeek This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ //--------------------------------------------------------------------------- //From http://www.richelbilderbeek.nl/CppWtChat1.htm //--------------------------------------------------------------------------- #ifndef WTCHAT1DIALOG_H #define WTCHAT1DIALOG_H //--------------------------------------------------------------------------- #include <boost/signals2.hpp> //--------------------------------------------------------------------------- #include <Wt/WContainerWidget> //--------------------------------------------------------------------------- #include "about.h" //--------------------------------------------------------------------------- namespace Wt { struct WLineEdit; struct WTextArea; struct WTimer; } //--------------------------------------------------------------------------- struct WtChat1Dialog : public Wt::WContainerWidget { WtChat1Dialog(); mutable boost::signals2::signal<void ()> m_signal_close; private: Wt::WLineEdit * m_edit; Wt::WTextArea * m_text; Wt::WTimer * m_timer; static const std::string m_chat_filename; void OnAboutClick(); void OnCloseClick(); void OnEditChange(); void OnTimer(); void ShowAbout(); void ShowChat(); public: static const std::vector<std::string> FileToVector(const std::string& filename); static const About GetAbout(); static const std::string GetVersion(); static const std::vector<std::string> GetVersionHistory(); }; //--------------------------------------------------------------------------- #endif // WTCHAT1DIALOG_H
wtmain.cpp
//--------------------------------------------------------------------------- /* WtChat, chatting server Copyright 2011 Richel Bilderbeek This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ //--------------------------------------------------------------------------- //From http://www.richelbilderbeek.nl/CppWtChat1.htm //--------------------------------------------------------------------------- #include <iostream> //--------------------------------------------------------------------------- #include <boost/program_options.hpp> //--------------------------------------------------------------------------- #include <Wt/WApplication> #include <Wt/WContainerWidget> #include <Wt/WEnvironment> //--------------------------------------------------------------------------- #include "wtchat1dialog.h" //--------------------------------------------------------------------------- struct WtApplication : public Wt::WApplication { WtApplication(const Wt::WEnvironment& env) : Wt::WApplication(env), m_dialog(new WtChat1Dialog) { this->setTitle("WtChat1"); this->useStyleSheet("wt.css"); root()->addWidget(m_dialog); } private: WtChat1Dialog * const m_dialog; }; //--------------------------------------------------------------------------- Wt::WApplication *createApplication( const Wt::WEnvironment& env) { return new WtApplication(env); } //--------------------------------------------------------------------------- int main(int argc, char **argv) { // Declare the supported options. boost::program_options::options_description d( "Allowed options for TestLed"); std::string docroot; std::string http_address; std::string http_port; d.add_options() ("help", "produce this help message") ("docroot", boost::program_options::value<std::string>(&docroot)->default_value("."), "the docroot") ("http-address", boost::program_options::value<std::string>(&http_address)->default_value("0.0.0.0"), "the server's http address") ("http-port", boost::program_options::value<std::string>(&http_port)->default_value("8080"), "the server's http port") ; boost::program_options::variables_map m; boost::program_options::store( boost::program_options::parse_command_line( argc, argv, d), m); boost::program_options::notify(m); if (m.count("help")) { //Display the options_description std::cout << d << "\n"; return 0; } //Create the arguments in std::string format std::vector<std::string> v(7); v[0] = argv[0]; v[1] = "--docroot"; v[2] = docroot; v[3] = "--http-address"; v[4] = http_address; v[5] = "--http-port"; v[6] = http_port; //Convert the arguments to char* format std::vector<char*> w(7); for (int i=0; i!=7; ++i) w[i] = &v[i][0]; //Give Wt the modified parameters return WRun(w.size(), &w[0], &createApplication); } //---------------------------------------------------------------------------