--- /dev/null
+///////////////////////////////////////////////////////////////////////////////
+// Name: conftest.cpp
+// Purpose: demo of wxConfig and related classes
+// Author: Vadim Zeitlin
+// Modified by:
+// Created: 03.08.98
+// RCS-ID: $Id$
+// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Licence: wxWindows license
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+#include "wx/wxprec.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/wx.h"
+#endif //precompiled headers
+
+#include "wx/log.h"
+#include "wx/config.h"
+
+// ----------------------------------------------------------------------------
+// classes
+// ----------------------------------------------------------------------------
+class MyApp: public wxApp
+{
+public:
+ // implement base class virtuals
+ virtual bool OnInit();
+ virtual int OnExit();
+};
+
+class MyFrame: public wxFrame
+{
+public:
+ MyFrame();
+ virtual ~MyFrame();
+
+ // callbacks
+ void OnQuit(wxCommandEvent& event);
+ void OnAbout(wxCommandEvent& event);
+ void OnDelete(wxCommandEvent& event);
+ bool OnClose() { return TRUE; }
+
+private:
+ wxTextCtrl *m_text;
+ wxCheckBox *m_check;
+
+ DECLARE_EVENT_TABLE()
+};
+
+enum
+{
+ Minimal_Quit,
+ Minimal_About,
+ Minimal_Delete
+};
+
+// ----------------------------------------------------------------------------
+// event tables
+// ----------------------------------------------------------------------------
+BEGIN_EVENT_TABLE(MyFrame, wxFrame)
+ EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
+ EVT_MENU(Minimal_About, MyFrame::OnAbout)
+ EVT_MENU(Minimal_Delete, MyFrame::OnDelete)
+END_EVENT_TABLE()
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// application
+// ----------------------------------------------------------------------------
+IMPLEMENT_APP(MyApp)
+
+// `Main program' equivalent, creating windows and returning main app frame
+bool MyApp::OnInit()
+{
+ // 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("wxWindows");
+ SetAppName("conftest"); // not needed, it's the default value
+
+ wxConfigBase *pConfig = wxConfigBase::Get();
+
+ // 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);
+ SetTopWindow(frame);
+
+ // 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(NULL);
+
+ return 0;
+}
+
+// ----------------------------------------------------------------------------
+// frame
+// ----------------------------------------------------------------------------
+
+// main frame ctor
+MyFrame::MyFrame()
+ : wxFrame(NULL, -1, "wxConfig Demo")
+{
+ // menu
+ wxMenu *file_menu = new wxMenu;
+
+ file_menu->Append(Minimal_Delete, "&Delete", "Delete config file");
+ file_menu->AppendSeparator();
+ file_menu->Append(Minimal_About, "&About", "About this sample");
+ file_menu->AppendSeparator();
+ file_menu->Append(Minimal_Quit, "E&xit", "Exit the program");
+ wxMenuBar *menu_bar = new wxMenuBar;
+ menu_bar->Append(file_menu, "&File");
+ SetMenuBar(menu_bar);
+
+ CreateStatusBar();
+
+ // child controls
+ wxPanel *panel = new wxPanel(this);
+ (void)new wxStaticText(panel, -1, "These controls remember their values!",
+ wxPoint(10, 10), wxSize(300, 20));
+ m_text = new wxTextCtrl(panel, -1, "", wxPoint(10, 40), wxSize(300, 20));
+ m_check = new wxCheckBox(panel, -1, "show welcome message box at startup",
+ wxPoint(10, 70), wxSize(300, 20));
+
+ // 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);
+}
+
+void MyFrame::OnQuit(wxCommandEvent&)
+{
+ Close(TRUE);
+}
+
+void MyFrame::OnAbout(wxCommandEvent&)
+{
+ wxMessageBox("wxConfig demo\n© Vadim Zeitlin 1998", "About",
+ wxICON_INFORMATION | wxOK);
+}
+
+void MyFrame::OnDelete(wxCommandEvent&)
+{
+ if ( wxConfigBase::Get()->DeleteAll() ) {
+ wxLogMessage("Config file/registry key successfully deleted.");
+
+ delete wxConfigBase::Set(NULL);
+ wxConfigBase::DontCreateOnDemand();
+ }
+ else
+ wxLogError("Deleting config file/registry key failed.");
+}
+
+MyFrame::~MyFrame()
+{
+ // save the control's values to the config
+ wxConfigBase *pConfig = wxConfigBase::Get();
+ if ( pConfig == NULL )
+ return;
+ 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", x);
+ pConfig->Write("/MainFrame/y", y);
+ pConfig->Write("/MainFrame/w", w);
+ pConfig->Write("/MainFrame/h", h);
+}
projects / wxWidgets.git / commitdiff
