webwindow.cxx File Reference

Detailed Description

Use of bootstrap framework together with RWebWindow class.

In webwindow.cxx RWebWindow created In dist directory HTML files generated with bootstrap are placed One also can see usage of embed TWebCanvas in such application

 
#include <ROOT/RWebWindow.hxx>
 
std::shared_ptr<ROOT::RWebWindow> window;
 
int counter = 0;
 
void ProcessData(unsigned connid, const std::string &arg)
{
   printf("Get msg %s \n", arg.c_str());
 
   counter++;
 
   if (arg == "get_text") {
      // send arbitrary text message
      window->Send(connid, TString::Format("Message%d", counter).Data());
   } else if (arg == "get_binary") {
      // send float array as binary
      float arr[10];
      for (int n = 0; n < 10; ++n)
         arr[n] = counter;
      window->SendBinary(connid, arr, sizeof(arr));
   } else if (arg == "halt") {
      // terminate ROOT
      window->TerminateROOT();
   }
}
 
void webwindow()
{
   // create window
   window = ROOT::RWebWindow::Create();
 
   // configure default html page
   // either HTML code can be specified or just name of file after 'file:' prefix
   std::string fdir = __FILE__;
   auto pos = fdir.find("webwindow.cxx");
   if (pos > 0)
      fdir.resize(pos);
   else
      fdir = gROOT->GetTutorialsDir() + std::string("/visualisation/webgui/webwindow/");
   window->SetDefaultPage("file:" + fdir + "webwindow.html");
 
   // this is call-back, invoked when message received from client
   window->SetDataCallBack(ProcessData);
 
   window->SetGeometry(300, 500); // configure predefined geometry
 
   window->Show();
}

Author

Sergey Linev

Definition in file webwindow.cxx.