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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: zip.cpp | |
3 | // Purpose: wxHtml sample | |
4 | // Author: ? | |
5 | // Modified by: | |
6 | // Created: ? | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) wxWidgets team | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx/wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifdef __BORLANDC__ | |
16 | #pragma hdrstop | |
17 | #endif | |
18 | ||
19 | // for all others, include the necessary headers (this file is usually all you | |
20 | // need because it includes almost all "standard" wxWidgets headers | |
21 | #ifndef WX_PRECOMP | |
22 | #include "wx/wx.h" | |
23 | #endif | |
24 | ||
25 | #include "wx/image.h" | |
26 | #include "wx/html/htmlwin.h" | |
27 | #include "wx/fs_zip.h" | |
28 | ||
29 | #ifndef __WXMSW__ | |
30 | #include "../../sample.xpm" | |
31 | #endif | |
32 | ||
33 | // ---------------------------------------------------------------------------- | |
34 | // private classes | |
35 | // ---------------------------------------------------------------------------- | |
36 | ||
37 | // Define a new application type, each program should derive a class from wxApp | |
38 | class MyApp : public wxApp | |
39 | { | |
40 | public: | |
41 | // override base class virtuals | |
42 | // ---------------------------- | |
43 | ||
44 | // this one is called on application startup and is a good place for the app | |
45 | // initialization (doing it here and not in the ctor allows to have an error | |
46 | // return: if OnInit() returns false, the application terminates) | |
47 | virtual bool OnInit(); | |
48 | }; | |
49 | ||
50 | // Define a new frame type: this is going to be our main frame | |
51 | class MyFrame : public wxFrame | |
52 | { | |
53 | public: | |
54 | // ctor(s) | |
55 | MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size); | |
56 | ||
57 | // event handlers (these functions should _not_ be virtual) | |
58 | void OnQuit(wxCommandEvent& event); | |
59 | void OnBack(wxCommandEvent& event); | |
60 | void OnForward(wxCommandEvent& event); | |
61 | ||
62 | private: | |
63 | // any class wishing to process wxWidgets events must use this macro | |
64 | DECLARE_EVENT_TABLE() | |
65 | }; | |
66 | ||
67 | // ---------------------------------------------------------------------------- | |
68 | // constants | |
69 | // ---------------------------------------------------------------------------- | |
70 | ||
71 | // IDs for the controls and the menu commands | |
72 | enum | |
73 | { | |
74 | // menu items | |
75 | Minimal_Quit = 1, | |
76 | Minimal_Back, | |
77 | Minimal_Forward | |
78 | }; | |
79 | ||
80 | // ---------------------------------------------------------------------------- | |
81 | // event tables and other macros for wxWidgets | |
82 | // ---------------------------------------------------------------------------- | |
83 | ||
84 | // the event tables connect the wxWidgets events with the functions (event | |
85 | // handlers) which process them. It can be also done at run-time, but for the | |
86 | // simple menu events like this the static method is much simpler. | |
87 | BEGIN_EVENT_TABLE(MyFrame, wxFrame) | |
88 | EVT_MENU(Minimal_Quit, MyFrame::OnQuit) | |
89 | EVT_MENU(Minimal_Back, MyFrame::OnBack) | |
90 | EVT_MENU(Minimal_Forward, MyFrame::OnForward) | |
91 | END_EVENT_TABLE() | |
92 | ||
93 | // Create a new application object: this macro will allow wxWidgets to create | |
94 | // the application object during program execution (it's better than using a | |
95 | // static object for many reasons) and also declares the accessor function | |
96 | // wxGetApp() which will return the reference of the right type (i.e. MyApp and | |
97 | // not wxApp) | |
98 | IMPLEMENT_APP(MyApp) | |
99 | ||
100 | // ============================================================================ | |
101 | // implementation | |
102 | // ============================================================================ | |
103 | ||
104 | // ---------------------------------------------------------------------------- | |
105 | // the application class | |
106 | // ---------------------------------------------------------------------------- | |
107 | // `Main program' equivalent: the program execution "starts" here | |
108 | bool MyApp::OnInit() | |
109 | { | |
110 | if ( !wxApp::OnInit() ) | |
111 | return false; | |
112 | ||
113 | #if wxUSE_LIBPNG | |
114 | wxImage::AddHandler(new wxPNGHandler); | |
115 | #endif | |
116 | #if wxUSE_LIBJPEG | |
117 | wxImage::AddHandler(new wxJPEGHandler); | |
118 | #endif | |
119 | ||
120 | wxFileSystem::AddHandler(new wxZipFSHandler); | |
121 | ||
122 | // Create the main application window | |
123 | MyFrame *frame = new MyFrame(_("wxHtmlWindow testing application"), | |
124 | wxDefaultPosition, wxSize(640, 480) ); | |
125 | ||
126 | // Show it and tell the application that it's our main window | |
127 | // @@@ what does it do exactly, in fact? is it necessary here? | |
128 | frame->Show(true); | |
129 | SetTopWindow(frame); | |
130 | ||
131 | // success: wxApp::OnRun() will be called which will enter the main message | |
132 | // loop and the application will run. If we returned false here, the | |
133 | // application would exit immediately. | |
134 | ||
135 | return true; | |
136 | } | |
137 | ||
138 | // ---------------------------------------------------------------------------- | |
139 | // main frame | |
140 | // ---------------------------------------------------------------------------- | |
141 | ||
142 | wxHtmlWindow *html; | |
143 | ||
144 | // frame constructor | |
145 | MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) | |
146 | : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size) | |
147 | { | |
148 | SetIcon(wxICON(sample)); | |
149 | ||
150 | // create a menu bar | |
151 | wxMenu *menuFile = new wxMenu; | |
152 | wxMenu *menuNav = new wxMenu; | |
153 | ||
154 | menuFile->Append(Minimal_Quit, _("E&xit")); | |
155 | menuNav->Append(Minimal_Back, _("Go &BACK")); | |
156 | menuNav->Append(Minimal_Forward, _("Go &FORWARD")); | |
157 | ||
158 | // now append the freshly created menu to the menu bar... | |
159 | wxMenuBar *menuBar = new wxMenuBar; | |
160 | menuBar->Append(menuFile, _("&File")); | |
161 | menuBar->Append(menuNav, _("&Navigate")); | |
162 | ||
163 | // ... and attach this menu bar to the frame | |
164 | SetMenuBar(menuBar); | |
165 | ||
166 | #if wxUSE_STATUSBAR | |
167 | CreateStatusBar(1); | |
168 | #endif // wxUSE_STATUSBAR | |
169 | ||
170 | html = new wxHtmlWindow(this); | |
171 | html -> SetRelatedFrame(this, _("HTML : %s")); | |
172 | #if wxUSE_STATUSBAR | |
173 | html -> SetRelatedStatusBar(0); | |
174 | #endif // wxUSE_STATUSBAR | |
175 | html -> LoadPage(wxT("start.htm")); | |
176 | } | |
177 | ||
178 | ||
179 | // event handlers | |
180 | ||
181 | void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) | |
182 | { | |
183 | // true is to force the frame to close | |
184 | Close(true); | |
185 | } | |
186 | ||
187 | void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event)) | |
188 | { | |
189 | if (!html -> HistoryBack()) wxMessageBox(_("You reached prehistory era!")); | |
190 | } | |
191 | ||
192 | void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event)) | |
193 | { | |
194 | if (!html -> HistoryForward()) wxMessageBox(_("No more items in history!")); | |
195 | } |