Geant4 Cross Reference

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Geant4/externals/g4tools/include/toolx/Xt/session

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  1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
  2 // See the file tools.license for terms.
  3 
  4 #ifndef toolx_Xt_session
  5 #define toolx_Xt_session
  6 
  7 #include <X11/Intrinsic.h>
  8 #include <X11/Shell.h>
  9 #include <X11/StringDefs.h>
 10 
 11 #include <ostream>
 12 
 13 namespace toolx {
 14 namespace Xt {
 15 
 16 class session {
 17 public:
 18   session(std::ostream& a_out)
 19   :m_out(a_out),m_app_context(0),m_app_widget(0),m_app_owner(false)
 20   {}
 21   session(std::ostream& a_out,XtAppContext a_app_context,Widget a_app_widget)
 22   :m_out(a_out),m_app_context(a_app_context),m_app_widget(a_app_widget),m_app_owner(false)
 23   {}
 24   session(std::ostream& a_out,int& a_argc,char** a_argv)
 25   :m_out(a_out),m_app_context(0),m_app_widget(0),m_app_owner(false)
 26   {
 27   //LookDSM_Problem();
 28     Arg args[1];
 29     XtSetArg(args[0],XtNgeometry,XtNewString("100x100"));
 30     m_app_widget = ::XtAppInitialize(&m_app_context,"toolx::Xt::session",NULL,(Cardinal)0,&a_argc,a_argv,NULL,args,1);
 31     if(!m_app_context || !m_app_widget) {
 32       m_app_context = 0;
 33       m_app_widget = 0;
 34       m_app_owner = false;
 35       return;
 36     }
 37     m_app_owner = true;
 38   }
 39   virtual ~session() {
 40     if(m_app_owner) {
 41       if(m_app_widget) {::XtDestroyWidget(m_app_widget);m_app_widget = 0;}
 42       if(m_app_context) {::XtDestroyApplicationContext(m_app_context);m_app_context = 0;}
 43     }
 44   }
 45 protected:
 46   session(const session& a_from)
 47   :m_out(a_from.m_out),m_app_context(0),m_app_widget(0),m_app_owner(false)
 48   {}
 49   session& operator=(const session&){return *this;}
 50 public:
 51   std::ostream& out() const {return m_out;}
 52   bool is_valid() {return m_app_context && m_app_widget?true:false;}
 53   bool steer() {
 54     if(!m_app_context) return false;
 55     while(true) {
 56       XEvent event;
 57       ::XtAppNextEvent(m_app_context,&event);
 58       ::XtDispatchEvent(&event);
 59       //if(m_exit) break;
 60     }
 61     return true;
 62   }
 63   bool sync() {
 64   //if(!m_app_widget) return false;
 65   //Display* display = XtDisplay(m_app_widget);
 66   //::XSync(display,False);
 67     if(!m_app_context) return false;
 68     while(true) { 
 69       XtInputMask input = ::XtAppPending(m_app_context);
 70       if(input==0) break;
 71       XEvent event;
 72       ::XtAppNextEvent(m_app_context,&event);
 73       ::XtDispatchEvent(&event);        
 74     }
 75     return true;
 76   }
 77 public:
 78   Widget get_app_widget() {return m_app_widget;}
 79 protected:
 80   std::ostream& m_out;
 81   XtAppContext m_app_context;
 82   Widget m_app_widget;  
 83   bool m_app_owner;
 84 };
 85 
 86 }}
 87 
 88 
 89 #endif