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git.saurik.com Git - wxWidgets.git/blob - samples/config/conftest.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
3 // Purpose: demo of wxConfig and related classes
4 // Author: Vadim Zeitlin
8 // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
9 // Licence: wxWindows license
10 ///////////////////////////////////////////////////////////////////////////////
12 // ============================================================================
14 // ============================================================================
16 // ----------------------------------------------------------------------------
18 // ----------------------------------------------------------------------------
19 #include "wx/wxprec.h"
23 #endif //precompiled headers
26 #include "wx/config.h"
28 // ----------------------------------------------------------------------------
30 // ----------------------------------------------------------------------------
31 class MyApp
: public wxApp
34 // implement base class virtuals
35 virtual bool OnInit();
39 class MyFrame
: public wxFrame
46 void OnQuit(wxCommandEvent
& event
);
47 void OnAbout(wxCommandEvent
& event
);
48 void OnDelete(wxCommandEvent
& event
);
49 bool OnClose() { return TRUE
; }
65 // ----------------------------------------------------------------------------
67 // ----------------------------------------------------------------------------
68 BEGIN_EVENT_TABLE(MyFrame
, wxFrame
)
69 EVT_MENU(Minimal_Quit
, MyFrame::OnQuit
)
70 EVT_MENU(Minimal_About
, MyFrame::OnAbout
)
71 EVT_MENU(Minimal_Delete
, MyFrame::OnDelete
)
74 // ============================================================================
76 // ============================================================================
78 // ----------------------------------------------------------------------------
80 // ----------------------------------------------------------------------------
83 // `Main program' equivalent, creating windows and returning main app frame
86 // we're using wxConfig's "create-on-demand" feature: it will create the
87 // config object when it's used for the first time. It has a number of
88 // advantages compared with explicitly creating our wxConfig:
89 // 1) we don't pay for it if we don't use it
90 // 2) there is no danger to create it twice
92 // application and vendor name are used by wxConfig to construct the name
93 // of the config file/registry key and must be set before the first call
94 // to Get() if you want to override the default values (the application
95 // name is the name of the executable and the vendor name is the same)
96 SetVendorName("wxWindows");
97 SetAppName("conftest"); // not needed, it's the default value
99 wxConfigBase
*pConfig
= wxConfigBase::Get();
101 // or you could also write something like this:
102 // wxFileConfig *pConfig = new wxFileConfig("conftest");
103 // wxConfigBase::Set(pConfig);
104 // where you can also specify the file names explicitly if you wish.
105 // Of course, calling Set() is optional and you only must do it if
106 // you want to later retrieve this pointer with Get().
108 // create the main program window
109 MyFrame
*frame
= new MyFrame
;
113 // use our config object...
114 if ( pConfig
->Read("/Controls/Check", 1l) != 0 ) {
115 wxMessageBox("You can disable this message box by unchecking\n"
116 "the checkbox in the main window (of course, a real\n"
117 "program would have a checkbox right here but we\n"
118 "keep it simple)", "Welcome to wxConfig demo",
119 wxICON_INFORMATION
| wxOK
);
127 // clean up: Set() returns the active config object as Get() does, but unlike
128 // Get() it doesn't try to create one if there is none (definitely not what
130 delete wxConfigBase::Set((wxConfigBase
*) NULL
);
135 // ----------------------------------------------------------------------------
137 // ----------------------------------------------------------------------------
141 : wxFrame((wxFrame
*) NULL
, -1, "wxConfig Demo")
144 wxMenu
*file_menu
= new wxMenu
;
146 file_menu
->Append(Minimal_Delete
, "&Delete", "Delete config file");
147 file_menu
->AppendSeparator();
148 file_menu
->Append(Minimal_About
, "&About", "About this sample");
149 file_menu
->AppendSeparator();
150 file_menu
->Append(Minimal_Quit
, "E&xit", "Exit the program");
151 wxMenuBar
*menu_bar
= new wxMenuBar
;
152 menu_bar
->Append(file_menu
, "&File");
153 SetMenuBar(menu_bar
);
158 wxPanel
*panel
= new wxPanel(this);
159 (void)new wxStaticText(panel
, -1, "These controls remember their values!",
160 wxPoint(10, 10), wxSize(300, 20));
161 m_text
= new wxTextCtrl(panel
, -1, "", wxPoint(10, 40), wxSize(300, 20));
162 m_check
= new wxCheckBox(panel
, -1, "show welcome message box at startup",
163 wxPoint(10, 70), wxSize(300, 20));
165 // restore the control's values from the config
167 // NB: in this program, the config object is already created at this moment
168 // because we had called Get() from MyApp::OnInit(). However, if you later
169 // change the code and don't create it before this line, it won't break
170 // anything - unlike if you manually create wxConfig object with Create()
171 // or in any other way (then you must be sure to create it before using it!).
172 wxConfigBase
*pConfig
= wxConfigBase::Get();
174 // we could write Read("/Controls/Text") as well, it's just to show SetPath()
175 pConfig
->SetPath("/Controls");
177 m_text
->SetValue(pConfig
->Read("Text", ""));
178 m_check
->SetValue(pConfig
->Read("Check", 1l) != 0);
180 // SetPath() understands ".."
181 pConfig
->SetPath("../MainFrame");
183 // restore frame position and size
184 int x
= pConfig
->Read("x", 50),
185 y
= pConfig
->Read("y", 50),
186 w
= pConfig
->Read("w", 350),
187 h
= pConfig
->Read("h", 200);
192 void MyFrame::OnQuit(wxCommandEvent
&)
197 void MyFrame::OnAbout(wxCommandEvent
&)
199 wxMessageBox("wxConfig demo\n© Vadim Zeitlin 1998", "About",
200 wxICON_INFORMATION
| wxOK
);
203 void MyFrame::OnDelete(wxCommandEvent
&)
205 // VZ: it seems that DeleteAll() wreaks havoc on NT. Disabled until I
206 // investigate it further, do _not_ compile this code in meanwhile!
207 // JACS: wxRegConfig::DeleteAll is disabled, so it's safe to call DeleteAll,
208 // it just won't do anything useful on Win95/NT.
209 if ( wxConfigBase::Get()->DeleteAll() ) {
210 wxLogMessage("Config file/registry key successfully deleted.");
212 delete wxConfigBase::Set((wxConfigBase
*) NULL
);
213 wxConfigBase::DontCreateOnDemand();
216 wxLogError("Deleting config file/registry key failed.");
221 // save the control's values to the config
222 wxConfigBase
*pConfig
= wxConfigBase::Get();
223 if ( pConfig
== NULL
)
225 pConfig
->Write("/Controls/Text", m_text
->GetValue());
226 pConfig
->Write("/Controls/Check", m_check
->GetValue());
228 // save the frame position
230 GetClientSize(&w
, &h
);
232 pConfig
->Write("/MainFrame/x", (long) x
);
233 pConfig
->Write("/MainFrame/y", (long) y
);
234 pConfig
->Write("/MainFrame/w", (long) w
);
235 pConfig
->Write("/MainFrame/h", (long) h
);