X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a4f03d8798648492bbe7ddb2f0531e7ed7929f84..2e51fb3041e78ef15506ed746ed5898536be5955:/samples/minimal/minimal.cpp diff --git a/samples/minimal/minimal.cpp b/samples/minimal/minimal.cpp index 24e0dbb9e6..80bf766199 100644 --- a/samples/minimal/minimal.cpp +++ b/samples/minimal/minimal.cpp @@ -1,30 +1,200 @@ -#include "wx/wx.h" +///////////////////////////////////////////////////////////////////////////// +// Name: minimal.cpp +// Purpose: Minimal wxWidgets sample +// Author: Julian Smart +// Modified by: +// Created: 04/01/98 +// RCS-ID: $Id$ +// Copyright: (c) Julian Smart +// Licence: wxWindows licence +///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ -class TestApp : public wxApp +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +// For compilers that support precompilation, includes "wx/wx.h". +#include "wx/wxprec.h" + +#ifdef __BORLANDC__ + #pragma hdrstop +#endif + +// for all others, include the necessary headers (this file is usually all you +// need because it includes almost all "standard" wxWidgets headers) +#ifndef WX_PRECOMP + #include "wx/wx.h" +#endif + +// ---------------------------------------------------------------------------- +// resources +// ---------------------------------------------------------------------------- + +// the application icon (under Windows and OS/2 it is in resources and even +// though we could still include the XPM here it would be unused) +#if !defined(__WXMSW__) && !defined(__WXPM__) + #include "../sample.xpm" +#endif + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +// Define a new application type, each program should derive a class from wxApp +class MyApp : public wxApp { public: - virtual bool OnInit() { - wxFrame *frame = new wxFrame(NULL, -1, _T("Test")); - - wxFlexGridSizer *sizer = new wxFlexGridSizer(3, 1, 0, 0); - - sizer->Add(new wxListBox(frame, -1, wxDefaultPosition, wxSize(200,100))); - sizer->Add(new wxButton(frame, -1, _T("Hello")), 0, wxGROW | wxALIGN_RIGHT); - sizer->Add(new wxTextCtrl(frame, -1, _T("dummy"), wxDefaultPosition, wxSize(200, 100)) ); - sizer->AddGrowableRow(0, 1); - sizer->AddGrowableRow(1, 1); - sizer->AddGrowableRow(2, 1); - sizer->AddGrowableCol(0, 1); - - frame->SetSizer(sizer); - sizer->SetSizeHints(frame); - - frame->Show(); - SetTopWindow(frame); - - return true; - } + // override base class virtuals + // ---------------------------- + + // this one is called on application startup and is a good place for the app + // initialization (doing it here and not in the ctor allows to have an error + // return: if OnInit() returns false, the application terminates) + virtual bool OnInit(); }; -IMPLEMENT_APP(TestApp) +// Define a new frame type: this is going to be our main frame +class MyFrame : public wxFrame +{ +public: + // ctor(s) + MyFrame(const wxString& title); + + // event handlers (these functions should _not_ be virtual) + void OnQuit(wxCommandEvent& event); + void OnAbout(wxCommandEvent& event); + +private: + // any class wishing to process wxWidgets events must use this macro + DECLARE_EVENT_TABLE() +}; + +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +// IDs for the controls and the menu commands +enum +{ + // menu items + Minimal_Quit = wxID_EXIT, + + // it is important for the id corresponding to the "About" command to have + // this standard value as otherwise it won't be handled properly under Mac + // (where it is special and put into the "Apple" menu) + Minimal_About = wxID_ABOUT +}; + +// ---------------------------------------------------------------------------- +// event tables and other macros for wxWidgets +// ---------------------------------------------------------------------------- + +// the event tables connect the wxWidgets events with the functions (event +// handlers) which process them. It can be also done at run-time, but for the +// simple menu events like this the static method is much simpler. +BEGIN_EVENT_TABLE(MyFrame, wxFrame) + EVT_MENU(Minimal_Quit, MyFrame::OnQuit) + EVT_MENU(Minimal_About, MyFrame::OnAbout) +END_EVENT_TABLE() + +// Create a new application object: this macro will allow wxWidgets to create +// the application object during program execution (it's better than using a +// static object for many reasons) and also implements the accessor function +// wxGetApp() which will return the reference of the right type (i.e. MyApp and +// not wxApp) +IMPLEMENT_APP(MyApp) + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// the application class +// ---------------------------------------------------------------------------- + +// 'Main program' equivalent: the program execution "starts" here +bool MyApp::OnInit() +{ + // call the base class initialization method, currently it only parses a + // few common command-line options but it could be do more in the future + if ( !wxApp::OnInit() ) + return false; + + // create the main application window + MyFrame *frame = new MyFrame("Minimal wxWidgets App"); + + // and show it (the frames, unlike simple controls, are not shown when + // created initially) + frame->Show(true); + + // success: wxApp::OnRun() will be called which will enter the main message + // loop and the application will run. If we returned false here, the + // application would exit immediately. + return true; +} + +// ---------------------------------------------------------------------------- +// main frame +// ---------------------------------------------------------------------------- + +// frame constructor +MyFrame::MyFrame(const wxString& title) + : wxFrame(NULL, wxID_ANY, title) +{ + // set the frame icon + SetIcon(wxICON(sample)); + +#if wxUSE_MENUS + // create a menu bar + wxMenu *fileMenu = new wxMenu; + + // the "About" item should be in the help menu + wxMenu *helpMenu = new wxMenu; + helpMenu->Append(Minimal_About, "&About...\tF1", "Show about dialog"); + + fileMenu->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program"); + + // now append the freshly created menu to the menu bar... + wxMenuBar *menuBar = new wxMenuBar(); + menuBar->Append(fileMenu, "&File"); + menuBar->Append(helpMenu, "&Help"); + + // ... and attach this menu bar to the frame + SetMenuBar(menuBar); +#endif // wxUSE_MENUS + +#if wxUSE_STATUSBAR + // create a status bar just for fun (by default with 1 pane only) + CreateStatusBar(2); + SetStatusText("Welcome to wxWidgets!"); +#endif // wxUSE_STATUSBAR +} + + +// event handlers + +void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) +{ + // true is to force the frame to close + Close(true); +} + +void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) +{ + wxMessageBox(wxString::Format + ( + "Welcome to %s!\n" + "\n" + "This is the minimal wxWidgets sample\n" + "running under %s.", + wxVERSION_STRING, + wxGetOsDescription() + ), + "About wxWidgets minimal sample", + wxOK | wxICON_INFORMATION, + this); +}