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1/////////////////////////////////////////////////////////////////////////////
2// Name: common/init.cpp
3// Purpose: initialisation for the library
4// Author: Vadim Zeitlin
5// Modified by:
6// Created: 04.10.99
7// RCS-ID: $Id$
8// Copyright: (c) Vadim Zeitlin
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20#include "wx/wxprec.h"
21
22#ifdef __BORLANDC__
23 #pragma hdrstop
24#endif //__BORLANDC__
25
26#ifndef WX_PRECOMP
27 #include "wx/app.h"
28 #include "wx/debug.h"
29 #include "wx/filefn.h"
30#endif
31
32#include "wx/module.h"
33
34// ----------------------------------------------------------------------------
35// global vars
36// ----------------------------------------------------------------------------
37
38WXDLLEXPORT wxApp *wxTheApp = NULL;
39
40wxAppInitializerFunction
41 wxAppBase::m_appInitFn = (wxAppInitializerFunction)NULL;
42
43// ----------------------------------------------------------------------------
44// private classes
45// ----------------------------------------------------------------------------
46
47class /* no WXDLLEXPORT */ wxConsoleApp : public wxApp
48{
49public:
50 virtual int OnRun() { wxFAIL_MSG(wxT("unreachable")); return 0; }
51 virtual bool ProcessIdle() { return TRUE; }
52};
53
54// ----------------------------------------------------------------------------
55// private functions
56// ----------------------------------------------------------------------------
57
58static bool DoInit();
59static void DoCleanUp();
60
61// ----------------------------------------------------------------------------
62// private vars
63// ----------------------------------------------------------------------------
64
65static size_t gs_nInitCount = 0;
66
67// ============================================================================
68// implementation
69// ============================================================================
70
71// ----------------------------------------------------------------------------
72// stubs for some GUI functions
73// ----------------------------------------------------------------------------
74
75void WXDLLEXPORT wxExit()
76{
77 abort();
78}
79
80// Yield to other apps/messages
81void WXDLLEXPORT wxWakeUpIdle()
82{
83 // do nothing
84}
85
86// ----------------------------------------------------------------------------
87// wxBase-specific functions
88// ----------------------------------------------------------------------------
89
90bool WXDLLEXPORT wxInitialize()
91{
92 if ( gs_nInitCount )
93 {
94 // already initialized
95 return TRUE;
96 }
97
98 wxASSERT_MSG( !wxTheApp,
99 wxT("either call wxInitialize or create app, not both!") );
100
101 if ( !DoInit() )
102 {
103 return FALSE;
104 }
105
106 wxTheApp = new wxConsoleApp;
107
108 if ( !wxTheApp )
109 {
110 return FALSE;
111 }
112
113 wxTheApp->DoInit();
114 gs_nInitCount++;
115
116 return TRUE;
117}
118
119void WXDLLEXPORT wxUninitialize()
120{
121 if ( !--gs_nInitCount )
122 {
123 DoCleanUp();
124 }
125}
126
127int wxEntry(int argc, char **argv)
128{
129 // library initialization
130 if ( !DoInit() )
131 {
132 return -1;
133 }
134
135 // create the app
136 if ( !wxTheApp )
137 {
138 wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,
139 wxT("No application object: use IMPLEMENT_APP macro.") );
140
141 wxAppInitializerFunction fnCreate = wxApp::GetInitializerFunction();
142
143 wxTheApp = (wxApp *)fnCreate();
144 }
145
146 wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") );
147
148 // app preinitialization
149 wxTheApp->argc = argc;
150
151#if wxUSE_UNICODE
152 wxTheApp->argv = new wxChar*[argc+1];
153 int mb_argc = 0;
154 while (mb_argc < argc)
155 {
156 wxTheApp->argv[mb_argc] = wxStrdup(wxConvLocal.cMB2WX(argv[mb_argc]));
157 mb_argc++;
158 }
159 wxTheApp->argv[mb_argc] = (wxChar *)NULL;
160#else
161 wxTheApp->argv = argv;
162#endif
163
164 wxString name = wxFileNameFromPath(argv[0]);
165 wxStripExtension(name);
166 wxTheApp->SetAppName(name);
167
168 int retValue = 0;
169
170 // app initialization
171 if ( !wxTheApp->OnInit() )
172 retValue = -1;
173
174 // app execution
175 if ( retValue == 0 )
176 {
177 retValue = wxTheApp->OnRun();
178
179 // app clean up
180 wxTheApp->OnExit();
181 }
182
183 // library clean up
184 DoCleanUp();
185
186 return retValue;
187}
188
189// ----------------------------------------------------------------------------
190// private functions
191// ----------------------------------------------------------------------------
192
193static bool DoInit()
194{
195 wxClassInfo::InitializeClasses();
196
197 wxModule::RegisterModules();
198 if ( !wxModule::InitializeModules() )
199 {
200 return FALSE;
201 }
202
203 return TRUE;
204}
205
206static void DoCleanUp()
207{
208#if wxUSE_LOG
209 // flush the logged messages if any
210 wxLog *log = wxLog::GetActiveTarget();
211 if (log != NULL && log->HasPendingMessages())
212 log->Flush();
213
214 // continuing to use user defined log target is unsafe from now on because
215 // some resources may be already unavailable, so replace it by something
216 // more safe
217 wxLog::DontCreateOnDemand();
218 delete wxLog::SetActiveTarget(new wxLogStderr);
219#endif // wxUSE_LOG
220
221 wxModule::CleanUpModules();
222
223 wxClassInfo::CleanUpClasses();
224
225 // delete the application object
226 delete wxTheApp;
227 wxTheApp = (wxApp *)NULL;
228
229#if wxUSE_LOG
230 // and now delete the last logger as well
231 delete wxLog::SetActiveTarget(NULL);
232#endif // wxUSE_LOG
233}