Geant4  10.01
G4Qt.cc
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27 // $Id: G4Qt.cc 79026 2014-02-12 09:53:32Z gcosmo $
28 //
29 // L. Garnier
30 
31 #if defined(G4INTY_BUILD_QT) || defined(G4INTY_USE_QT)
32 
33 #include <stdlib.h>
34 #include <string.h>
35 
36 #include "G4ios.hh"
37 
38 #include "G4Qt.hh"
39 #include "G4UImanager.hh"
40 #include <qwidget.h>
41 
42 #include <qapplication.h>
43 
44 
45 G4Qt* G4Qt::instance = NULL;
46 
47 static G4bool QtInited = FALSE;
48 
49 /***************************************************************************/
50 G4Qt* G4Qt::getInstance (
51 )
52 /***************************************************************************/
54 {
55  return G4Qt::getInstance (0,NULL,(char*)"Geant4");
56 }
57 /***************************************************************************/
58 G4Qt* G4Qt::getInstance (
59  int a_argn
60 ,char** a_args
61 ,char* a_class
62 )
63 /***************************************************************************/
65 {
66  if (instance==NULL) {
67  instance = new G4Qt(a_argn,a_args,a_class);
68  }
69  return instance;
70 }
71 /***************************************************************************/
72 G4Qt::G4Qt (
73  int a_argn
74 ,char** a_args
75  ,char* /*a_class */
76  )
77 /***************************************************************************/
79 {
80  argn = 0;
81  args = NULL;
82  externalApp = false;
83 
84 #ifdef G4DEBUG_INTERFACES_COMMON
85  printf("G4Qt::G4Qt try to inited Qt\n");
86 #endif
87  // Check if Qt already init in another external app
88  if(qApp) {
89  externalApp = true;
90  QtInited = TRUE;
91  SetMainInteractor (qApp);
92  SetArguments (a_argn,a_args);
93 
94 #ifdef G4DEBUG_INTERFACES_COMMON
95  printf("G4Qt::G4Qt alredy inited in external \n");
96 #endif
97  } else {
98 
99  if(QtInited==FALSE) { //Qt should be Inited once !
100  // Then two cases :
101  // - It is the first time we create G4UI (argc!=0)
102  // -> Inited and register
103  // - It is the first time we create G4VIS (argc == 0)
104  // -> Inited and NOT register
105 
106  if (a_argn != 0) {
107  argn = a_argn;
108  args = a_args;
109 
110  } else { //argc = 0
111 
112  // FIXME : That's not the good arguments, but I don't know how to get args from other Interactor.
113  // Ex: How to get them from G4Xt ?
114  argn = 1;
115  args = (char **)malloc( 1 * sizeof(char *) );
116  args[0] = (char *)malloc(10 * sizeof(char));
117  strncpy(args[0], "my_app \0", 9);
118  }
119 
120  int *p_argn = (int*)malloc(sizeof(int));
121  *p_argn = argn;
122 #ifdef G4DEBUG_INTERFACES_COMMON
123  printf("G4Qt::G4Qt QAppl \n");
124 #endif
125  new QApplication (*p_argn, args);
126  if(!qApp) {
127 
128  G4UImanager* UImanager = G4UImanager::GetUIpointer();
129  G4int verbose = UImanager->GetVerboseLevel();
130  if (verbose >= 2) {
131  G4cout << "G4Qt : Unable to init Qt." << G4endl;
132  }
133  } else {
134  QtInited = TRUE;
135  if (a_argn != 0) {
136 #ifdef G4DEBUG_INTERFACES_COMMON
137  printf("G4Qt::G4Qt SetMainInteractor\n");
138 #endif
139  SetMainInteractor (qApp);
140  }
141  SetArguments (a_argn,a_args);
142 #ifdef G4DEBUG_INTERFACES_COMMON
143  printf("G4Qt::G4Qt inited Qt END\n");
144 #endif
145  }
146  }
147  }
148 #ifdef G4DEBUG_INTERFACES_COMMON
149  if (qApp) {
150  printf("G4Qt::qApp already exist\n");
151  } else {
152  printf("G4Qt::qApp not exist\n");
153  }
154 #endif
155  // AddDispatcher ((G4DispatchFunction)XtDispatchEvent);
156 
157  /*
158  * On some non-English locale, comma is used for the decimal separator instead of dot
159  * bringing to weird behavior of strtod (string to double) function in user application.
160  * This is "by design" from Qt, see https://bugreports.qt-project.org/browse/QTBUG-10994
161  *
162  * $ LC_NUMERIC=fr_FR.UTF-8 ./qtstrtod
163  * strtod(0.1) = 0
164  * $ LC_NUMERIC=C ./qtstrtod
165  * strtod(0.1) = 0.1
166  *
167  * Jerome Suhard, jerome@suhard.fr
168  */
169 
170  // explicitly set the LC_NUMBERIC locale to "C"
171  setlocale (LC_NUMERIC, "C");
172 }
173 /***************************************************************************/
174 G4Qt::~G4Qt (
175 )
176 /***************************************************************************/
178 {
179  if(this==instance) {
180  instance = NULL;
181  }
182 }
183 /***************************************************************************/
184 G4bool G4Qt::Inited (
185 )
186 /***************************************************************************/
188 {
189  return QtInited;
190 }
191 /***************************************************************************/
192 void* G4Qt::GetEvent (
193 )
194 /***************************************************************************/
196 {
197  return 0;
198 }
199 /***************************************************************************/
200 void G4Qt::FlushAndWaitExecution (
201 )
202 /***************************************************************************/
204 {
205  if(!qApp) return;
206  qApp->processEvents();
207 }
208 
209 /***************************************************************************/
210 bool G4Qt::IsExternalApp (
211 )
212 /***************************************************************************/
214 {
215  return externalApp;
216 }
217 
218 #endif
219 
220 
G4int GetVerboseLevel() const
Definition: G4UImanager.hh:227
int G4int
Definition: G4Types.hh:78
static G4UImanager * GetUIpointer()
Definition: G4UImanager.cc:58
G4GLOB_DLL std::ostream G4cout
bool G4bool
Definition: G4Types.hh:79
#define FALSE
Definition: globals.hh:52
#define TRUE
Definition: globals.hh:55
#define G4endl
Definition: G4ios.hh:61
static MCTruthManager * instance