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1/////////////////////////////////////////////////////////////////////////////
2// Name: minimal.cpp
3// Purpose: Minimal wxWindows sample
4// Author: Julian Smart
5// Modified by:
6// Created: 04/01/98
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20// For compilers that support precompilation, includes "wx/wx.h".
21#include "wx/wxprec.h"
22
23#ifdef __BORLANDC__
24 #pragma hdrstop
25#endif
26
27// for all others, include the necessary headers (this file is usually all you
28// need because it includes almost all "standard" wxWindows headers)
29#ifndef WX_PRECOMP
30 #include "wx/wx.h"
31#endif
32
33// ----------------------------------------------------------------------------
34// resources
35// ----------------------------------------------------------------------------
36
37
38// ----------------------------------------------------------------------------
39// private classes
40// ----------------------------------------------------------------------------
41
42// Define a new application type, each program should derive a class from wxApp
43class MyApp : public wxApp
44{
45public:
46 // override base class virtuals
47 // ----------------------------
48
49 // this one is called on application startup and is a good place for the app
50 // initialization (doing it here and not in the ctor allows to have an error
51 // return: if OnInit() returns false, the application terminates)
52 virtual bool OnInit();
53};
54
55// Define a new frame type: this is going to be our main frame
56class MyFrame : public wxFrame
57{
58public:
59 // ctor(s)
60 MyFrame(const wxString& title);
61
62 // event handlers (these functions should _not_ be virtual)
63 void OnQuit(wxCommandEvent& event);
64 void OnAbout(wxCommandEvent& event);
65
66private:
67 // any class wishing to process wxWindows events must use this macro
68 DECLARE_EVENT_TABLE()
69};
70
71// ----------------------------------------------------------------------------
72// constants
73// ----------------------------------------------------------------------------
74
75// IDs for the controls and the menu commands
76enum
77{
78 // menu items
79 Minimal_Quit = wxID_EXIT,
80
81 // it is important for the id corresponding to the "About" command to have
82 // this standard value as otherwise it won't be handled properly under Mac
83 // (where it is special and put into the "Apple" menu)
84 Minimal_About = wxID_ABOUT
85};
86
87// ----------------------------------------------------------------------------
88// event tables and other macros for wxWindows
89// ----------------------------------------------------------------------------
90
91// the event tables connect the wxWindows events with the functions (event
92// handlers) which process them. It can be also done at run-time, but for the
93// simple menu events like this the static method is much simpler.
94BEGIN_EVENT_TABLE(MyFrame, wxFrame)
95 EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
96 EVT_MENU(Minimal_About, MyFrame::OnAbout)
97END_EVENT_TABLE()
98
99// Create a new application object: this macro will allow wxWindows to create
100// the application object during program execution (it's better than using a
101// static object for many reasons) and also implements the accessor function
102// wxGetApp() which will return the reference of the right type (i.e. MyApp and
103// not wxApp)
104IMPLEMENT_APP(MyApp)
105
106// ============================================================================
107// implementation
108// ============================================================================
109
110// ----------------------------------------------------------------------------
111// the application class
112// ----------------------------------------------------------------------------
113
114// 'Main program' equivalent: the program execution "starts" here
115bool MyApp::OnInit()
116{
117 // create the main application window
9a83f860 118 MyFrame *frame = new MyFrame(wxT("Minimal wxWindows App"));
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119
120 // and show it (the frames, unlike simple controls, are not shown when
121 // created initially)
122 frame->Show(true);
123
124 // success: wxApp::OnRun() will be called which will enter the main message
125 // loop and the application will run. If we returned false here, the
126 // application would exit immediately.
127 return true;
128}
129
130// ----------------------------------------------------------------------------
131// main frame
132// ----------------------------------------------------------------------------
133
134// frame constructor
135MyFrame::MyFrame(const wxString& title)
136 : wxFrame(NULL, wxID_ANY, title)
137{
138 // set the frame icon
139
140#if wxUSE_MENUS
141 // create a menu bar
142 wxMenu *menuFile = new wxMenu;
143
144 // the "About" item should be in the help menu
145 wxMenu *helpMenu = new wxMenu;
2d143b66 146 helpMenu->Append(Minimal_About, wxT("&About\tF1"), wxT("Show about dialog"));
83c7f6a7 147
9a83f860 148 menuFile->Append(Minimal_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
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149
150 // now append the freshly created menu to the menu bar...
151 wxMenuBar *menuBar = new wxMenuBar();
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152 menuBar->Append(menuFile, wxT("&File"));
153 menuBar->Append(helpMenu, wxT("&Help"));
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154
155 // ... and attach this menu bar to the frame
156 SetMenuBar(menuBar);
157#endif // wxUSE_MENUS
158
159#if wxUSE_STATUSBAR
160 // create a status bar just for fun (by default with 1 pane only)
161 CreateStatusBar(2);
9a83f860 162 SetStatusText(wxT("Welcome to wxWindows!"));
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163#endif // wxUSE_STATUSBAR
164}
165
166
167// event handlers
168
169void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
170{
171 // true is to force the frame to close
172 Close(true);
173}
174
175void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
176{
177 wxString msg;
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178 msg.Printf( wxT("This is the About dialog of the minimal sample.\n")
179 wxT("Welcome to %s"), wxVERSION_STRING);
83c7f6a7 180
9a83f860 181 wxMessageBox(msg, wxT("About Minimal"), wxOK | wxICON_INFORMATION, this);
83c7f6a7 182}