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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: test.cpp
3 // Purpose: wxHtml testing example
4 /////////////////////////////////////////////////////////////////////////////
5
6 #if defined(__GNUG__) && !defined(__APPLE__)
7 #pragma implementation "test.cpp"
8 #pragma interface "test.cpp"
9 #endif
10
11 // For compilers that support precompilation, includes "wx/wx.h".
12 #include "wx/wxprec.h"
13
14 #ifdef __BORLANDC__
15 #pragma hdrstop
16 #endif
17
18 // for all others, include the necessary headers (this file is usually all you
19 // need because it includes almost all "standard" wxWindows headers
20 #ifndef WX_PRECOMP
21 #include "wx/wx.h"
22 #endif
23
24 #include "wx/image.h"
25 #include "wx/sysopt.h"
26 #include "wx/html/htmlwin.h"
27 #include "wx/html/htmlproc.h"
28 #include "wx/fs_inet.h"
29 #include "wx/filedlg.h"
30
31 // ----------------------------------------------------------------------------
32 // private classes
33 // ----------------------------------------------------------------------------
34
35 // Define a new application type, each program should derive a class from wxApp
36 class MyApp : public wxApp
37 {
38 public:
39 // override base class virtuals
40 // ----------------------------
41
42 // this one is called on application startup and is a good place for the app
43 // initialization (doing it here and not in the ctor allows to have an error
44 // return: if OnInit() returns false, the application terminates)
45 virtual bool OnInit();
46 };
47
48 // Define a new frame type: this is going to be our main frame
49 class MyFrame : public wxFrame
50 {
51 public:
52 // ctor(s)
53 MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
54
55 // event handlers (these functions should _not_ be virtual)
56 void OnQuit(wxCommandEvent& event);
57 void OnPageOpen(wxCommandEvent& event);
58 void OnBack(wxCommandEvent& event);
59 void OnForward(wxCommandEvent& event);
60 void OnProcessor(wxCommandEvent& event);
61
62 private:
63 wxHtmlWindow *m_Html;
64 wxHtmlProcessor *m_Processor;
65 // any class wishing to process wxWindows events must use this macro
66 DECLARE_EVENT_TABLE()
67 };
68
69
70 class BoldProcessor : public wxHtmlProcessor
71 {
72 public:
73 virtual wxString Process(const wxString& s) const
74 {
75 wxString r(s);
76 r.Replace(wxT("<b>"), wxEmptyString);
77 r.Replace(wxT("<B>"), wxEmptyString);
78 r.Replace(wxT("</b>"), wxEmptyString);
79 r.Replace(wxT("</B>"), wxEmptyString);
80 return r;
81 }
82 };
83
84 // ----------------------------------------------------------------------------
85 // constants
86 // ----------------------------------------------------------------------------
87
88 // IDs for the controls and the menu commands
89 enum
90 {
91 // menu items
92 Minimal_Quit = 1,
93 Minimal_PageOpen,
94 Minimal_Back,
95 Minimal_Forward,
96 Minimal_Processor,
97
98 // controls start here (the numbers are, of course, arbitrary)
99 Minimal_Text = 1000
100 };
101
102 // ----------------------------------------------------------------------------
103 // event tables and other macros for wxWindows
104 // ----------------------------------------------------------------------------
105
106 // the event tables connect the wxWindows events with the functions (event
107 // handlers) which process them. It can be also done at run-time, but for the
108 // simple menu events like this the static method is much simpler.
109 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
110 EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
111 EVT_MENU(Minimal_PageOpen, MyFrame::OnPageOpen)
112 EVT_MENU(Minimal_Back, MyFrame::OnBack)
113 EVT_MENU(Minimal_Forward, MyFrame::OnForward)
114 EVT_MENU(Minimal_Processor, MyFrame::OnProcessor)
115 END_EVENT_TABLE()
116
117 // Create a new application object: this macro will allow wxWindows to create
118 // the application object during program execution (it's better than using a
119 // static object for many reasons) and also declares the accessor function
120 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
121 // not wxApp)
122 IMPLEMENT_APP(MyApp)
123
124 // ============================================================================
125 // implementation
126 // ============================================================================
127
128 // ----------------------------------------------------------------------------
129 // the application class
130 // ----------------------------------------------------------------------------
131 // `Main program' equivalent: the program execution "starts" here
132 bool MyApp::OnInit()
133 {
134 #if wxUSE_SYSTEM_OPTIONS
135 wxSystemOptions::SetOption(wxT("no-maskblt"), 1);
136 #endif
137
138 wxInitAllImageHandlers();
139 #if wxUSE_FS_INET && wxUSE_STREAMS && wxUSE_SOCKETS
140 wxFileSystem::AddHandler(new wxInternetFSHandler);
141 #endif
142
143 SetVendorName(wxT("wxWindows"));
144 SetAppName(wxT("wxHtmlTest"));
145 // the following call to wxConfig::Get will use it to create an object...
146
147 // Create the main application window
148 MyFrame *frame = new MyFrame(_("wxHtmlWindow testing application"),
149 wxPoint(50, 50), wxSize(640, 480));
150
151 // Show it and tell the application that it's our main window
152 // @@@ what does it do exactly, in fact? is it necessary here?
153 frame->Show(TRUE);
154 SetTopWindow(frame);
155
156
157 // success: wxApp::OnRun() will be called which will enter the main message
158 // loop and the application will run. If we returned FALSE here, the
159 // application would exit immediately.
160 return TRUE;
161 }
162
163 // ----------------------------------------------------------------------------
164 // main frame
165 // ----------------------------------------------------------------------------
166
167
168 // frame constructor
169 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
170 : wxFrame((wxFrame *)NULL, -1, title, pos, size, wxDEFAULT_FRAME_STYLE,
171 wxT("html_test_app"))
172 {
173 // create a menu bar
174 wxMenu *menuFile = new wxMenu;
175 wxMenu *menuNav = new wxMenu;
176
177 menuFile->Append(Minimal_PageOpen, _("&Open HTML page..."));
178 menuFile->AppendSeparator();
179 menuFile->Append(Minimal_Processor, _("&Remove bold attribute"), wxT(""), TRUE);
180
181 menuFile->AppendSeparator();
182 menuFile->Append(Minimal_Quit, _("&Close frame"));
183 menuNav->Append(Minimal_Back, _("Go &BACK"));
184 menuNav->Append(Minimal_Forward, _("Go &FORWARD"));
185
186 // now append the freshly created menu to the menu bar...
187 wxMenuBar *menuBar = new wxMenuBar;
188 menuBar->Append(menuFile, _("&File"));
189 menuBar->Append(menuNav, _("&Navigate"));
190
191 // ... and attach this menu bar to the frame
192 SetMenuBar(menuBar);
193
194 CreateStatusBar(1);
195
196 m_Processor = new BoldProcessor;
197 m_Processor->Enable(FALSE);
198 m_Html = new wxHtmlWindow(this);
199 m_Html->SetRelatedFrame(this, _("HTML : %s"));
200 m_Html->SetRelatedStatusBar(0);
201 m_Html->ReadCustomization(wxConfig::Get());
202 m_Html->LoadFile(wxFileName(wxT("test.htm")));
203 m_Html->AddProcessor(m_Processor);
204 }
205
206
207 // event handlers
208
209 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
210 {
211 // TRUE is to force the frame to close
212 m_Html -> WriteCustomization(wxConfig::Get());
213 delete wxConfig::Set(NULL);
214 Close(TRUE);
215 }
216
217 void MyFrame::OnPageOpen(wxCommandEvent& WXUNUSED(event))
218 {
219 wxString p = wxFileSelector(_("Open HTML document"), wxT(""), wxT(""), wxT(""), wxT("HTML files|*.htm"));
220 if (p != wxEmptyString)
221 m_Html -> LoadPage(p);
222 }
223
224 void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event))
225 {
226 if (!m_Html -> HistoryBack()) wxMessageBox(_("You reached prehistory era!"));
227 }
228
229 void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event))
230 {
231 if (!m_Html -> HistoryForward()) wxMessageBox(_("No more items in history!"));
232 }
233
234 void MyFrame::OnProcessor(wxCommandEvent& WXUNUSED(event))
235 {
236 m_Processor->Enable(!m_Processor->IsEnabled());
237 m_Html->LoadPage(m_Html->GetOpenedPage());
238 }