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