]> git.saurik.com Git - wxWidgets.git/blame - samples/erase/erase.cpp
don't try to refresh the menu bar before showing it, fixes crash on startup with...
[wxWidgets.git] / samples / erase / erase.cpp
CommitLineData
33611ebb
RR
1/////////////////////////////////////////////////////////////////////////////
2// Name: erase.cpp
3// Purpose: Erase wxWindows sample
4// Author: Robert Roebling
5// Modified by:
6// Created: 04/01/98
7// RCS-ID: $Id$
8// Copyright: (c) Robert Roebling
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20#ifdef __GNUG__
4d2c67a9
JS
21 #pragma implementation "erase.cpp"
22 #pragma interface "erase.cpp"
33611ebb
RR
23#endif
24
25// For compilers that support precompilation, includes "wx/wx.h".
26#include "wx/wxprec.h"
27
28#ifdef __BORLANDC__
29 #pragma hdrstop
30#endif
31
32// for all others, include the necessary headers (this file is usually all you
33// need because it includes almost all "standard" wxWindows headers)
34#ifndef WX_PRECOMP
35 #include "wx/wx.h"
36#endif
37
38// ----------------------------------------------------------------------------
39// resources
40// ----------------------------------------------------------------------------
41// the application icon
83661a13 42#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__)
33611ebb
RR
43 #include "mondrian.xpm"
44#endif
45
46// ----------------------------------------------------------------------------
47// private classes
48// ----------------------------------------------------------------------------
49
50class MyApp : public wxApp
51{
52public:
53 virtual bool OnInit();
54};
55
56
57class MyFrame : public wxFrame
58{
59public:
60 MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
61
62 void OnQuit(wxCommandEvent& event);
63 void OnAbout(wxCommandEvent& event);
64
65private:
66 DECLARE_EVENT_TABLE()
67};
68
69
70class MyCanvas : public wxScrolledWindow
71{
72public:
73 MyCanvas( MyFrame *parent );
74
75 void OnPaint( wxPaintEvent &event );
76 void OnEraseBackground( wxEraseEvent &event );
77
78private:
79 DECLARE_EVENT_TABLE()
80};
81
82// ----------------------------------------------------------------------------
83// constants
84// ----------------------------------------------------------------------------
85
86enum
87{
88 // menu items
89 Minimal_Quit = 1,
90 Minimal_About
91};
92
93
94// ----------------------------------------------------------------------------
95// the application class
96// ----------------------------------------------------------------------------
97
98IMPLEMENT_APP(MyApp)
99
100bool MyApp::OnInit()
101{
102 MyFrame *frame = new MyFrame("Minimal wxWindows App",
103 wxPoint(50, 50), wxSize(450, 340));
104
105 frame->Show(TRUE);
106
107 return TRUE;
108}
109
110// ----------------------------------------------------------------------------
111// main frame
112// ----------------------------------------------------------------------------
113
114BEGIN_EVENT_TABLE(MyFrame, wxFrame)
115 EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
116 EVT_MENU(Minimal_About, MyFrame::OnAbout)
117END_EVENT_TABLE()
118
119// frame constructor
120MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
121 : wxFrame((wxFrame *)NULL, -1, title, pos, size)
122{
123#ifdef __WXMAC__
124 wxApp::s_macAboutMenuItemId = Minimal_About;
125#endif
126
127 SetIcon(wxICON(mondrian));
128
129 wxMenu *menuFile = new wxMenu("", wxMENU_TEAROFF);
130
131 wxMenu *helpMenu = new wxMenu;
132 helpMenu->Append(Minimal_About, "&About...\tCtrl-A", "Show about dialog");
133
134 menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");
135
136 wxMenuBar *menuBar = new wxMenuBar();
137 menuBar->Append(menuFile, "&File");
138 menuBar->Append(helpMenu, "&Help");
139
140 SetMenuBar(menuBar);
141
142#if wxUSE_STATUSBAR
143 // create a status bar just for fun (by default with 1 pane only)
144 CreateStatusBar(2);
145 SetStatusText("Welcome to wxWindows!");
146#endif // wxUSE_STATUSBAR
147
148 (void)new MyCanvas( this );
149}
150
151
152void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
153{
154 Close(TRUE);
155}
156
157void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
158{
159 wxString msg;
83661a13 160 msg.Printf( _T("This is the about dialog of the Erase sample.\n")
33611ebb
RR
161 _T("Welcome to %s"), wxVERSION_STRING);
162
4d2c67a9 163 wxMessageBox(msg, "About Erase", wxOK | wxICON_INFORMATION, this);
33611ebb
RR
164}
165
166
167BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
168 EVT_PAINT( MyCanvas::OnPaint)
169 EVT_ERASE_BACKGROUND( MyCanvas::OnEraseBackground)
170END_EVENT_TABLE()
171
172MyCanvas::MyCanvas( MyFrame *parent )
173 : wxScrolledWindow( parent, -1, wxDefaultPosition, wxDefaultSize,
174 wxScrolledWindowStyle|wxNO_FULL_REPAINT_ON_RESIZE )
175{
176 SetScrollbars( 10, 10, 40, 100, 0, 0 );
177}
178
179void MyCanvas::OnPaint( wxPaintEvent &event )
180{
181 wxPaintDC dc(this);
182 PrepareDC( dc );
183
184 dc.SetBrush( *wxRED_BRUSH );
185 dc.DrawRectangle( 100, 100, 300, 500 );
186}
187
188void MyCanvas::OnEraseBackground( wxEraseEvent &event )
189{
190 event.Skip( TRUE );
191}
192