45e6e6f8ab
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44354 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
270 lines
8.3 KiB
C++
270 lines
8.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: conftest.cpp
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// Purpose: demo of wxConfig and related classes
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 03.08.98
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows license
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/wxprec.h"
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif //precompiled headers
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#include "wx/log.h"
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#include "wx/config.h"
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// ----------------------------------------------------------------------------
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// classes
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// ----------------------------------------------------------------------------
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class MyApp: public wxApp
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{
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public:
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// implement base class virtuals
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virtual bool OnInit();
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virtual int OnExit();
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};
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class MyFrame: public wxFrame
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{
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public:
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MyFrame();
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virtual ~MyFrame();
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// callbacks
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnDelete(wxCommandEvent& event);
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private:
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wxTextCtrl *m_text;
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wxCheckBox *m_check;
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DECLARE_EVENT_TABLE()
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};
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enum
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{
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ConfTest_Quit,
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ConfTest_About,
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ConfTest_Delete
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};
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// ----------------------------------------------------------------------------
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// event tables
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// ----------------------------------------------------------------------------
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BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(ConfTest_Quit, MyFrame::OnQuit)
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EVT_MENU(ConfTest_About, MyFrame::OnAbout)
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EVT_MENU(ConfTest_Delete, MyFrame::OnDelete)
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END_EVENT_TABLE()
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// application
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// ----------------------------------------------------------------------------
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IMPLEMENT_APP(MyApp)
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// `Main program' equivalent, creating windows and returning main app frame
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bool MyApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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// we're using wxConfig's "create-on-demand" feature: it will create the
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// config object when it's used for the first time. It has a number of
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// advantages compared with explicitly creating our wxConfig:
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// 1) we don't pay for it if we don't use it
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// 2) there is no danger to create it twice
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// application and vendor name are used by wxConfig to construct the name
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// of the config file/registry key and must be set before the first call
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// to Get() if you want to override the default values (the application
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// name is the name of the executable and the vendor name is the same)
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SetVendorName(_T("wxWidgets"));
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SetAppName(_T("conftest")); // not needed, it's the default value
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wxConfigBase *pConfig = wxConfigBase::Get();
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// uncomment this to force writing back of the defaults for all values
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// if they're not present in the config - this can give the user an idea
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// of all possible settings for this program
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pConfig->SetRecordDefaults();
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// or you could also write something like this:
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// wxFileConfig *pConfig = new wxFileConfig("conftest");
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// wxConfigBase::Set(pConfig);
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// where you can also specify the file names explicitly if you wish.
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// Of course, calling Set() is optional and you only must do it if
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// you want to later retrieve this pointer with Get().
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// create the main program window
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MyFrame *frame = new MyFrame;
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frame->Show(true);
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SetTopWindow(frame);
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// use our config object...
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if ( pConfig->Read(_T("/Controls/Check"), 1l) != 0 ) {
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wxMessageBox(_T("You can disable this message box by unchecking\n")
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_T("the checkbox in the main window (of course, a real\n")
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_T("program would have a checkbox right here but we\n")
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_T("keep it simple)"), _T("Welcome to wxConfig demo"),
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wxICON_INFORMATION | wxOK);
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}
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return true;
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}
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int MyApp::OnExit()
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{
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// clean up: Set() returns the active config object as Get() does, but unlike
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// Get() it doesn't try to create one if there is none (definitely not what
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// we want here!)
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delete wxConfigBase::Set((wxConfigBase *) NULL);
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return 0;
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}
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// ----------------------------------------------------------------------------
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// frame
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// ----------------------------------------------------------------------------
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// main frame ctor
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MyFrame::MyFrame()
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: wxFrame((wxFrame *) NULL, wxID_ANY, _T("wxConfig Demo"))
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{
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// menu
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wxMenu *file_menu = new wxMenu;
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file_menu->Append(ConfTest_Delete, _T("&Delete"), _T("Delete config file"));
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file_menu->AppendSeparator();
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file_menu->Append(ConfTest_About, _T("&About\tF1"), _T("About this sample"));
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file_menu->AppendSeparator();
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file_menu->Append(ConfTest_Quit, _T("E&xit\tAlt-X"), _T("Exit the program"));
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wxMenuBar *menu_bar = new wxMenuBar;
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menu_bar->Append(file_menu, _T("&File"));
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SetMenuBar(menu_bar);
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#if wxUSE_STATUSBAR
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CreateStatusBar();
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#endif // wxUSE_STATUSBAR
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// child controls
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wxPanel *panel = new wxPanel(this);
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(void)new wxStaticText(panel, wxID_ANY, _T("These controls remember their values!"),
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wxPoint(10, 10), wxSize(300, 20));
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m_text = new wxTextCtrl(panel, wxID_ANY, _T(""), wxPoint(10, 40), wxSize(300, 20));
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m_check = new wxCheckBox(panel, wxID_ANY, _T("show welcome message box at startup"),
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wxPoint(10, 70), wxSize(300, 20));
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// restore the control's values from the config
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// NB: in this program, the config object is already created at this moment
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// because we had called Get() from MyApp::OnInit(). However, if you later
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// change the code and don't create it before this line, it won't break
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// anything - unlike if you manually create wxConfig object with Create()
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// or in any other way (then you must be sure to create it before using it!).
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wxConfigBase *pConfig = wxConfigBase::Get();
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// we could write Read("/Controls/Text") as well, it's just to show SetPath()
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pConfig->SetPath(_T("/Controls"));
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m_text->SetValue(pConfig->Read(_T("Text"), _T("")));
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m_check->SetValue(pConfig->Read(_T("Check"), 1l) != 0);
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// SetPath() understands ".."
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pConfig->SetPath(_T("../MainFrame"));
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// restore frame position and size
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int x = pConfig->Read(_T("x"), 50),
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y = pConfig->Read(_T("y"), 50),
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w = pConfig->Read(_T("w"), 350),
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h = pConfig->Read(_T("h"), 200);
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Move(x, y);
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SetClientSize(w, h);
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pConfig->SetPath(_T("/"));
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wxString s;
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if ( pConfig->Read(_T("TestValue"), &s) )
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{
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wxLogStatus(this, wxT("TestValue from config is '%s'"), s.c_str());
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}
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else
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{
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wxLogStatus(this, wxT("TestValue not found in the config"));
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}
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}
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void MyFrame::OnQuit(wxCommandEvent&)
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{
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Close(true);
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}
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void MyFrame::OnAbout(wxCommandEvent&)
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{
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wxMessageBox(_T("wxConfig demo\n(c) 1998-2001 Vadim Zeitlin"), _T("About"),
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wxICON_INFORMATION | wxOK);
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}
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void MyFrame::OnDelete(wxCommandEvent&)
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{
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wxConfigBase *pConfig = wxConfigBase::Get();
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if ( pConfig == NULL )
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{
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wxLogError(_T("No config to delete!"));
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return;
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}
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if ( pConfig->DeleteAll() )
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{
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wxLogMessage(_T("Config file/registry key successfully deleted."));
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delete wxConfigBase::Set(NULL);
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wxConfigBase::DontCreateOnDemand();
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}
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else
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{
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wxLogError(_T("Deleting config file/registry key failed."));
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}
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}
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MyFrame::~MyFrame()
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{
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wxConfigBase *pConfig = wxConfigBase::Get();
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if ( pConfig == NULL )
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return;
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// save the control's values to the config
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pConfig->Write(_T("/Controls/Text"), m_text->GetValue());
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pConfig->Write(_T("/Controls/Check"), m_check->GetValue());
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// save the frame position
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int x, y, w, h;
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GetClientSize(&w, &h);
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GetPosition(&x, &y);
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pConfig->Write(_T("/MainFrame/x"), (long) x);
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pConfig->Write(_T("/MainFrame/y"), (long) y);
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pConfig->Write(_T("/MainFrame/w"), (long) w);
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pConfig->Write(_T("/MainFrame/h"), (long) h);
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pConfig->Write(_T("/TestValue"), wxT("A test value"));
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}
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