samples/html/help/help.cpp

   1
   2 /////////////////////////////////////////////////////////////////////////////
   3 // Name:        test.cpp
   4 // Purpose:     wxHtml testing example
   5 /////////////////////////////////////////////////////////////////////////////
   6
   7 #ifdef __GNUG__
   8     #pragma implementation "help.cpp"
   9     #pragma interface "help.cpp"
  10 #endif
  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" wxWindows headers
  21 #ifndef WX_PRECOMP
  22     #include <wx/wx.h>
  23 #endif
  24
  25 #include "wx/image.h"
  26 #include "wx/html/helpfrm.h"
  27 #include "wx/html/helpctrl.h"
  28 #include "wx/filesys.h"
  29 #include "wx/fs_zip.h"
  30
  31 // ----------------------------------------------------------------------------
  32 // private classes
  33 // ----------------------------------------------------------------------------
  34
  35
  36 // Define a new application type, each program should derive a class from wxApp
  37    class MyApp : public wxApp
  38    {
  39    public:
  40     // override base class virtuals
  41     // ----------------------------
  42
  43     // this one is called on application startup and is a good place for the app
  44     // initialization (doing it here and not in the ctor allows to have an error
  45     // return: if OnInit() returns false, the application terminates)
  46       virtual bool OnInit();
  47    };
  48
  49
  50
  51 // Define a new frame type: this is going to be our main frame
  52    class MyFrame : public wxFrame
  53    {
  54    public:
  55     // ctor(s)
  56       MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
  57
  58     // event handlers (these functions should _not_ be virtual)
  59       void OnQuit(wxCommandEvent& event);
  60       void OnHelp(wxCommandEvent& event);
  61       void OnClose(wxCloseEvent& event);
  62    private:
  63       wxHtmlHelpController help;
  64
  65     // any class wishing to process wxWindows events must use this macro
  66     DECLARE_EVENT_TABLE()
  67    };
  68
  69 // ----------------------------------------------------------------------------
  70 // constants
  71 // ----------------------------------------------------------------------------
  72
  73 // IDs for the controls and the menu commands
  74    enum
  75    {
  76     // menu items
  77    Minimal_Quit = 1,
  78    Minimal_Help
  79    };
  80
  81 // ----------------------------------------------------------------------------
  82 // event tables and other macros for wxWindows
  83 // ----------------------------------------------------------------------------
  84
  85 // the event tables connect the wxWindows events with the functions (event
  86 // handlers) which process them. It can be also done at run-time, but for the
  87 // simple menu events like this the static method is much simpler.
  88    BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  89    EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
  90    EVT_MENU(Minimal_Help, MyFrame::OnHelp)
  91    EVT_CLOSE(MyFrame::OnClose)
  92    END_EVENT_TABLE()
  93
  94    // Create a new application object: this macro will allow wxWindows to create
  95    // the application object during program execution (it's better than using a
  96    // static object for many reasons) and also declares the accessor function
  97    // wxGetApp() which will return the reference of the right type (i.e. MyApp and
  98    // not wxApp)
  99    IMPLEMENT_APP(MyApp)
 100
 101    // ============================================================================
 102    // implementation
 103    // ============================================================================
 104
 105    // ----------------------------------------------------------------------------
 106    // the application class
 107    // ----------------------------------------------------------------------------
 108    // `Main program' equivalent: the program execution "starts" here
 109    bool MyApp::OnInit()
 110    {
 111       wxInitAllImageHandlers();
 112 #if wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
 113       wxFileSystem::AddHandler(new wxZipFSHandler);
 114 #endif
 115       SetVendorName("wxWindows");
 116       SetAppName("wxHTMLHelp");
 117
 118     // Create the main application window
 119       MyFrame *frame = new MyFrame("HTML Help Sample",
 120          wxPoint(50, 50), wxSize(150, 50));
 121
 122     // Show it and tell the application that it's our main window
 123     // @@@ what does it do exactly, in fact? is it necessary here?
 124       frame->Show(TRUE);
 125       SetTopWindow(frame);
 126
 127
 128     // success: wxApp::OnRun() will be called which will enter the main message
 129     // loop and the application will run. If we returned FALSE here, the
 130     // application would exit immediately.
 131       return TRUE;
 132    }
 133
 134 // ----------------------------------------------------------------------------
 135 // main frame
 136 // ----------------------------------------------------------------------------
 137
 138
 139 // frame constructor
 140    MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 141    : wxFrame((wxFrame *)NULL, -1, title, pos, size),
 142      help(wxHF_DEFAULT_STYLE | wxHF_OPEN_FILES)
 143    {
 144     // create a menu bar
 145       wxMenu *menuFile = new wxMenu;
 146
 147       menuFile->Append(Minimal_Help, "&Help");
 148       menuFile->Append(Minimal_Quit, "E&xit");
 149
 150     // now append the freshly created menu to the menu bar...
 151       wxMenuBar *menuBar = new wxMenuBar;
 152       menuBar->Append(menuFile, "&File");
 153
 154     // ... and attach this menu bar to the frame
 155       SetMenuBar(menuBar);
 156
 157       help.UseConfig(wxConfig::Get());
 158       bool ret;
 159 #ifdef __WXMAC__
 160       ret = help.AddBook(":helpfiles:testing.hhp");
 161 #else
 162       help.SetTempDir(".");
 163       ret = help.AddBook("helpfiles/testing.hhp");
 164 #endif
 165       if (! ret)
 166           wxMessageBox("Failed adding book helpfiles/testing.hhp");
 167 #ifdef __WXMAC__
 168       ret = help.AddBook(":helpfiles:another.hhp");
 169 #else
 170       ret = help.AddBook("helpfiles/another.hhp");
 171 #endif
 172       if (! ret)
 173           wxMessageBox("Failed adding book helpfiles/another.hhp");
 174    }
 175
 176
 177 // event handlers
 178
 179    void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 180    {
 181     // TRUE is to force the frame to close
 182       Close(TRUE);
 183    }
 184
 185    void MyFrame::OnHelp(wxCommandEvent& WXUNUSED(event))
 186    {
 187        help.Display("Main page");
 188    }
 189
 190    void MyFrame::OnClose(wxCloseEvent& event)
 191    {
 192        // Close the help frame; this will cause the config data to
 193        // get written.
 194        if ( help.GetFrame() ) // returns NULL if no help frame active
 195            help.GetFrame()->Close(TRUE);
 196        // now we can safely delete the config pointer
 197        event.Skip();
 198        delete wxConfig::Set(NULL);
 199    }
 200
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