initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/samples/config/conftest.cpp

@@ -0,0 +1,276 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        conftest.cpp
+// Purpose:     demo of wxConfig and related classes
+// Author:      Vadim Zeitlin
+// Created:     03.08.98
+// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// 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() override;
+};
+
+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 can either use wxConfig "create-on-demand" feature, which creates the
+    // config object when it's used for the first time or create it explicitly.
+    //
+    // On demand creation has the advantage of not creating wxConfig at all if
+    // it is not needed, and so is recommended in general, but because we do
+    // always use it here, we can just as well create it directly, as this
+    // allows to customize its creation more easily.
+
+    // 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;
+    if ( wxGetEnv("WX_CONFIG_CREATE_ON_DEMAND", nullptr) )
+    {
+        pConfig = wxConfig::Get();
+    }
+    else
+    {
+        pConfig = new wxConfig
+                      (
+                        GetAppName(),
+                        GetVendorName(),
+                        wxString{}, // use default local file name
+                        wxString{}, // use default global file name
+                        wxCONFIG_USE_LOCAL_FILE
+                        | wxCONFIG_USE_GLOBAL_FILE
+                        //
+                        // When creating the config object explicitly, it's
+                        // easier to customize the flags, e.g. you could
+                        // uncomment the line below to put the local config
+                        // file in a subdirectory.
+                        //
+                        //| wxCONFIG_USE_SUBDIR
+                      );
+
+        // Set it as the global config object: as usual, this also gives its
+        // ownership to wxWidgets, which will delete it.
+        wxConfig::Set(pConfig);
+    }
+
+    // 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();
+
+    // 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;
+}
+
+// ----------------------------------------------------------------------------
+// frame
+// ----------------------------------------------------------------------------
+
+// main frame ctor
+MyFrame::MyFrame()
+       : wxFrame(nullptr, 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().DoubleBorder(wxLEFT|wxBOTTOM|wxTOP));
+    sizer->Add(m_text, wxSizerFlags().DoubleBorder(wxLEFT|wxBOTTOM|wxRIGHT).Expand());
+    sizer->Add(m_check, wxSizerFlags().DoubleBorder(wxLEFT));
+    panel->SetSizer(sizer);
+
+    // restore the control's values from the config
+    wxConfigBase *pConfig = wxConfig::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 == nullptr )
+    {
+        wxLogError("No config to delete!");
+        return;
+    }
+
+    if ( pConfig->DeleteAll() )
+    {
+        wxLogMessage("Config file/registry key successfully deleted.");
+
+        delete wxConfigBase::Set(nullptr);
+        wxConfigBase::DontCreateOnDemand();
+    }
+    else
+    {
+        wxLogError("Deleting config file/registry key failed.");
+    }
+}
+
+MyFrame::~MyFrame()
+{
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    if ( pConfig == nullptr )
+        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");
+}
+