samples/html/test/test.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        test.cpp
   3 // Purpose:     wxHtml testing example
   4 // Author:      Vaclav Slavik
   5 // Created:     1999-07-07
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Vaclav Slavik
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #if defined(__GNUG__) && !defined(__APPLE__)
  12     #pragma implementation "test.cpp"
  13     #pragma interface "test.cpp"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx/wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 // For all others, include the necessary headers (this file is usually all you
  24 // need because it includes almost all "standard" wxWindows headers
  25 #ifndef WX_PRECOMP
  26     #include "wx/wx.h"
  27 #endif
  28
  29 #include "wx/image.h"
  30 #include "wx/sysopt.h"
  31 #include "wx/html/htmlwin.h"
  32 #include "wx/html/htmlproc.h"
  33 #include "wx/fs_inet.h"
  34 #include "wx/filedlg.h"
  35
  36 // ----------------------------------------------------------------------------
  37 // private classes
  38 // ----------------------------------------------------------------------------
  39
  40 // Define a new application type, each program should derive a class from wxApp
  41 class MyApp : public wxApp
  42 {
  43 public:
  44     virtual bool OnInit();
  45 };
  46
  47 // Define a new frame type: this is going to be our main frame
  48 class MyFrame : public wxFrame
  49 {
  50 public:
  51     // ctor(s)
  52     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
  53
  54     // event handlers (these functions should _not_ be virtual)
  55     void OnQuit(wxCommandEvent& event);
  56     void OnPageOpen(wxCommandEvent& event);
  57     void OnBack(wxCommandEvent& event);
  58     void OnForward(wxCommandEvent& event);
  59     void OnProcessor(wxCommandEvent& event);
  60
  61 private:
  62     wxHtmlWindow *m_Html;
  63     wxHtmlProcessor *m_Processor;
  64
  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
  81         return r;
  82     }
  83 };
  84
  85 // ----------------------------------------------------------------------------
  86 // constants
  87 // ----------------------------------------------------------------------------
  88
  89 // IDs for the controls and the menu commands
  90 enum
  91 {
  92     // menu items
  93     ID_PageOpen = wxID_HIGHEST,
  94     ID_Back,
  95     ID_Forward,
  96     ID_Processor
  97 };
  98
  99 // ----------------------------------------------------------------------------
 100 // event tables and other macros for wxWindows
 101 // ----------------------------------------------------------------------------
 102
 103 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 104     EVT_MENU(wxID_EXIT,  MyFrame::OnQuit)
 105     EVT_MENU(ID_PageOpen, MyFrame::OnPageOpen)
 106     EVT_MENU(ID_Back, MyFrame::OnBack)
 107     EVT_MENU(ID_Forward, MyFrame::OnForward)
 108     EVT_MENU(ID_Processor, MyFrame::OnProcessor)
 109 END_EVENT_TABLE()
 110
 111 IMPLEMENT_APP(MyApp)
 112
 113 // ============================================================================
 114 // implementation
 115 // ============================================================================
 116
 117 // ----------------------------------------------------------------------------
 118 // the application class
 119 // ----------------------------------------------------------------------------
 120
 121 // `Main program' equivalent: the program execution "starts" here
 122 bool MyApp::OnInit()
 123 {
 124 #if wxUSE_SYSTEM_OPTIONS
 125     wxSystemOptions::SetOption(wxT("no-maskblt"), 1);
 126 #endif
 127
 128     wxInitAllImageHandlers();
 129 #if wxUSE_FS_INET && wxUSE_STREAMS && wxUSE_SOCKETS
 130     wxFileSystem::AddHandler(new wxInternetFSHandler);
 131 #endif
 132
 133     SetVendorName(wxT("wxWindows"));
 134     SetAppName(wxT("wxHtmlTest"));
 135     // the following call to wxConfig::Get will use it to create an object...
 136
 137     // Create the main application window
 138     MyFrame *frame = new MyFrame(_("wxHtmlWindow testing application"),
 139         wxDefaultPosition, wxSize(640, 480));
 140
 141     frame->Show();
 142
 143     return true /* continue running */;
 144 }
 145
 146 // ----------------------------------------------------------------------------
 147 // main frame
 148 // ----------------------------------------------------------------------------
 149
 150 // frame constructor
 151 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 152    : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size,
 153              wxDEFAULT_FRAME_STYLE, wxT("html_test_app"))
 154 {
 155     // create a menu bar
 156     wxMenu *menuFile = new wxMenu;
 157     wxMenu *menuNav = new wxMenu;
 158
 159     menuFile->Append(ID_PageOpen, _("&Open HTML page..."));
 160     menuFile->AppendSeparator();
 161     menuFile->Append(ID_Processor, _("&Remove bold attribute"),
 162                      wxEmptyString, wxITEM_CHECK);
 163
 164     menuFile->AppendSeparator();
 165     menuFile->Append(wxID_EXIT, _("&Close frame"));
 166     menuNav->Append(ID_Back, _("Go &BACK"));
 167     menuNav->Append(ID_Forward, _("Go &FORWARD"));
 168
 169     // now append the freshly created menu to the menu bar...
 170     wxMenuBar *menuBar = new wxMenuBar;
 171     menuBar->Append(menuFile, _("&File"));
 172     menuBar->Append(menuNav, _("&Navigate"));
 173
 174     // ... and attach this menu bar to the frame
 175     SetMenuBar(menuBar);
 176
 177 #if wxUSE_ACCEL
 178     // Create convenient accelerators for Back and Forward navigation
 179     wxAcceleratorEntry entries[2];
 180     entries[0].Set(wxACCEL_ALT, WXK_LEFT, ID_Back);
 181     entries[1].Set(wxACCEL_ALT, WXK_RIGHT, ID_Forward);
 182
 183     wxAcceleratorTable accel(WXSIZEOF(entries), entries);
 184     SetAcceleratorTable(accel);
 185 #endif // wxUSE_ACCEL
 186
 187     CreateStatusBar(1);
 188
 189     m_Processor = new BoldProcessor;
 190     m_Processor->Enable(false);
 191     m_Html = new wxHtmlWindow(this);
 192     m_Html->SetRelatedFrame(this, _("HTML : %s"));
 193     m_Html->SetRelatedStatusBar(0);
 194     m_Html->ReadCustomization(wxConfig::Get());
 195     m_Html->LoadFile(wxFileName(wxT("test.htm")));
 196     m_Html->AddProcessor(m_Processor);
 197 }
 198
 199
 200 // event handlers
 201
 202 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 203 {
 204     m_Html->WriteCustomization(wxConfig::Get());
 205     delete wxConfig::Set(NULL);
 206
 207     // true is to force the frame to close
 208     Close(true);
 209 }
 210
 211 void MyFrame::OnPageOpen(wxCommandEvent& WXUNUSED(event))
 212 {
 213     wxString p = wxFileSelector(_("Open HTML document"), wxEmptyString,
 214         wxEmptyString, wxEmptyString, wxT("HTML files|*.htm"));
 215
 216     if (p != wxEmptyString)
 217         m_Html->LoadPage(p);
 218 }
 219
 220 void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event))
 221 {
 222     if (!m_Html->HistoryBack())
 223     {
 224         wxMessageBox(_("You reached prehistory era!"));
 225     }
 226 }
 227
 228 void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event))
 229 {
 230     if (!m_Html->HistoryForward())
 231     {
 232         wxMessageBox(_("No more items in history!"));
 233     }
 234 }
 235
 236 void MyFrame::OnProcessor(wxCommandEvent& WXUNUSED(event))
 237 {
 238     m_Processor->Enable(!m_Processor->IsEnabled());
 239     m_Html->LoadPage(m_Html->GetOpenedPage());
 240 }