| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 //
28 // L. Garnier
29
30 #include "G4Qt.hh"
31
32 #include "G4UImanager.hh"
33 #include "G4ios.hh"
34
35 #include <qapplication.h>
36 #include <qwidget.h>
37
38 #include <cstdlib>
39 #include <cstring>
40
41 #ifdef G4VIS_USE_VTK_QT
42 # include "QVTKOpenGLNativeWidget.h"
43 # include <qsurfaceformat.h>
44 #endif
45
46 G4Qt* G4Qt::instance = nullptr;
47
48 static G4bool QtInited = false;
49
50 /***************************************************************************/
51 G4Qt* G4Qt::getInstance()
52 /***************************************************************************/
53 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
54 {
55 return G4Qt::getInstance(0, nullptr, (char*)"Geant4");
56 }
57 /***************************************************************************/
58 G4Qt* G4Qt::getInstance(int a_argn, char** a_args, char* a_class)
59 /***************************************************************************/
60 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
61 {
62 if (instance == nullptr) {
63 instance = new G4Qt(a_argn, a_args, a_class);
64 }
65 return instance;
66 }
67 /***************************************************************************/
68 G4Qt::G4Qt(int a_argn, char** a_args, char* /*a_class */
69 )
70 /***************************************************************************/
71 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
72 {
73 argn = 0;
74 args = nullptr;
75 externalApp = false;
76
77 // Check if Qt already init in another external app
78 if (qApp) {
79 externalApp = true;
80 QtInited = true;
81 SetMainInteractor(qApp);
82 SetArguments(a_argn, a_args);
83 }
84 else {
85 if (! QtInited) { // Qt should be Inited once !
86 // Then two cases :
87 // - It is the first time we create G4UI (argc!=0)
88 // -> Inited and register
89 // - It is the first time we create G4VIS (argc == 0)
90 // -> Inited and NOT register
91
92 if (a_argn != 0) {
93 argn = a_argn;
94 args = a_args;
95 }
96 else { // argc = 0
97
98 // FIXME : That's not the good arguments, but I don't know how to get args from other
99 // Interactor. Ex: How to get them from G4Xt ?
100 argn = 1;
101 args = (char**)malloc(1 * sizeof(char*));
102 args[0] = (char*)malloc(10 * sizeof(char));
103 strncpy(args[0], "my_app \0", 9);
104 }
105
106 int* p_argn = (int*)malloc(sizeof(int));
107 *p_argn = argn;
108 #ifdef WIN32
109 qApp->setAttribute(Qt::AA_UseDesktopOpenGL);
110 #endif
111
112 #ifdef G4VIS_USE_VTK_QT
113 QSurfaceFormat::setDefaultFormat(QVTKOpenGLNativeWidget::defaultFormat());
114 #endif
115 new QApplication(*p_argn, args);
116 if (! qApp) {
117 G4UImanager* UImanager = G4UImanager::GetUIpointer();
118 G4int verbose = UImanager->GetVerboseLevel();
119 if (verbose >= 2) {
120 G4cout << "G4Qt : Unable to init Qt." << G4endl;
121 }
122 }
123 else {
124 QtInited = true;
125 if (a_argn != 0) {
126 SetMainInteractor(qApp);
127 }
128 SetArguments(a_argn, a_args);
129 }
130 }
131 }
132 // AddDispatcher ((G4DispatchFunction)XtDispatchEvent);
133
134 /*
135 * On some non-English locale, comma is used for the decimal separator instead of dot
136 * bringing to weird behavior of strtod (string to double) function in user application.
137 * This is "by design" from Qt, see https://bugreports.qt-project.org/browse/QTBUG-10994
138 *
139 * $ LC_NUMERIC=fr_FR.UTF-8 ./qtstrtod
140 * strtod(0.1) = 0
141 * $ LC_NUMERIC=C ./qtstrtod
142 * strtod(0.1) = 0.1
143 *
144 * Jerome Suhard, jerome@suhard.fr
145 */
146
147 // explicitly set the LC_NUMBERIC locale to "C"
148 setlocale(LC_NUMERIC, "C");
149 }
150 /***************************************************************************/
151 G4Qt::~G4Qt()
152 /***************************************************************************/
153 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
154 {
155 if (this == instance) {
156 instance = nullptr;
157 }
158 }
159 /***************************************************************************/
160 G4bool G4Qt::Inited()
161 /***************************************************************************/
162 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
163 {
164 return QtInited;
165 }
166 /***************************************************************************/
167 void* G4Qt::GetEvent()
168 /***************************************************************************/
169 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
170 {
171 return nullptr;
172 }
173 /***************************************************************************/
174 void G4Qt::FlushAndWaitExecution()
175 /***************************************************************************/
176 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
177 {
178 if (! qApp) return;
179 qApp->processEvents();
180 }
181
182 /***************************************************************************/
183 bool G4Qt::IsExternalApp()
184 /***************************************************************************/
185 /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
186 {
187 return externalApp;
188 }
189