samples/html/widget/widget.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        virtua;.cpp
   3 // Purpose:     wxHtml testing example
   4 //              demonstrates virtual file systems feature
   5 /////////////////////////////////////////////////////////////////////////////
   6
   7 #ifdef __GNUG__
   8     #pragma implementation "test.cpp"
   9     #pragma interface "test.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
  26 #include <wx/html/htmlwin.h>
  27
  28
  29
  30
  31 /*
  32
  33
  34 TAG HANDER FOR 'MYBIND' TAG
  35
  36
  37 */
  38
  39 #include <wx/html/m_templ.h>
  40
  41
  42 TAG_HANDLER_BEGIN(MYBIND, "MYBIND")
  43
  44     TAG_HANDLER_PROC(tag)
  45     {
  46         wxWindow *wnd;
  47         int ax, ay;
  48         int fl = 0;
  49
  50         tag.ScanParam("X", "%i", &ax);
  51         tag.ScanParam("Y", "%i", &ay);
  52         if (tag.HasParam("FLOAT")) fl = ax;
  53
  54         wnd = new wxTextCtrl( m_WParser -> GetWindow(), -1, tag.GetParam("NAME"),
  55                               wxPoint(0,0), wxSize(ax, ay), wxTE_MULTILINE );
  56         wnd -> Show(TRUE);
  57
  58         m_WParser -> OpenContainer() -> InsertCell(new wxHtmlWidgetCell(wnd, fl));
  59
  60         return FALSE;
  61     }
  62
  63 TAG_HANDLER_END(MYBIND)
  64
  65
  66
  67 TAGS_MODULE_BEGIN(MyBind)
  68
  69     TAGS_MODULE_ADD(MYBIND)
  70
  71 TAGS_MODULE_END(MyBind)
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81 // ----------------------------------------------------------------------------
  82 // private classes
  83 // ----------------------------------------------------------------------------
  84
  85 // Define a new application type, each program should derive a class from wxApp
  86    class MyApp : public wxApp
  87    {
  88    public:
  89     // override base class virtuals
  90     // ----------------------------
  91
  92     // this one is called on application startup and is a good place for the app
  93     // initialization (doing it here and not in the ctor allows to have an error
  94     // return: if OnInit() returns false, the application terminates)
  95       virtual bool OnInit();
  96    };
  97
  98 // Define a new frame type: this is going to be our main frame
  99    class MyFrame : public wxFrame
 100    {
 101    public:
 102     // ctor(s)
 103       MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
 104
 105     // event handlers (these functions should _not_ be virtual)
 106       void OnQuit(wxCommandEvent& event);
 107       void OnAbout(wxCommandEvent& event);
 108       void OnBack(wxCommandEvent& event);
 109       void OnForward(wxCommandEvent& event);
 110
 111    private:
 112     // any class wishing to process wxWindows events must use this macro
 113     DECLARE_EVENT_TABLE()
 114    };
 115
 116 // ----------------------------------------------------------------------------
 117 // constants
 118 // ----------------------------------------------------------------------------
 119
 120 // IDs for the controls and the menu commands
 121    enum
 122    {
 123     // menu items
 124    Minimal_Quit = 1,
 125    Minimal_About,
 126    Minimal_Back,
 127    Minimal_Forward,
 128
 129     // controls start here (the numbers are, of course, arbitrary)
 130    Minimal_Text = 1000,
 131    };
 132
 133 // ----------------------------------------------------------------------------
 134 // event tables and other macros for wxWindows
 135 // ----------------------------------------------------------------------------
 136
 137 // the event tables connect the wxWindows events with the functions (event
 138 // handlers) which process them. It can be also done at run-time, but for the
 139 // simple menu events like this the static method is much simpler.
 140    BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 141    EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
 142    EVT_MENU(Minimal_About, MyFrame::OnAbout)
 143    EVT_MENU(Minimal_Back, MyFrame::OnBack)
 144    EVT_MENU(Minimal_Forward, MyFrame::OnForward)
 145    END_EVENT_TABLE()
 146
 147    // Create a new application object: this macro will allow wxWindows to create
 148    // the application object during program execution (it's better than using a
 149    // static object for many reasons) and also declares the accessor function
 150    // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 151    // not wxApp)
 152    IMPLEMENT_APP(MyApp)
 153
 154    // ============================================================================
 155    // implementation
 156    // ============================================================================
 157
 158    // ----------------------------------------------------------------------------
 159    // the application class
 160    // ----------------------------------------------------------------------------
 161
 162    // `Main program' equivalent: the program execution "starts" here
 163    bool MyApp::OnInit()
 164    {
 165     // Create the main application window
 166       MyFrame *frame = new MyFrame("wxHtmlWindow testing application",
 167          wxPoint(50, 50), wxSize(640, 480));
 168
 169     // Show it and tell the application that it's our main window
 170     // @@@ what does it do exactly, in fact? is it necessary here?
 171       frame->Show(TRUE);
 172       SetTopWindow(frame);
 173
 174     // success: wxApp::OnRun() will be called which will enter the main message
 175     // loop and the application will run. If we returned FALSE here, the
 176     // application would exit immediately.
 177       return TRUE;
 178    }
 179
 180 // ----------------------------------------------------------------------------
 181 // main frame
 182 // ----------------------------------------------------------------------------
 183
 184 wxHtmlWindow *html;
 185
 186 // frame constructor
 187    MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 188    : wxFrame((wxFrame *)NULL, -1, title, pos, size)
 189    {
 190     // create a menu bar
 191       wxMenu *menuFile = new wxMenu;
 192       wxMenu *menuNav = new wxMenu;
 193
 194       menuFile->Append(Minimal_Quit, "E&xit");
 195       menuNav->Append(Minimal_Back, "Go &BACK");
 196       menuNav->Append(Minimal_Forward, "Go &FORWARD");
 197
 198     // now append the freshly created menu to the menu bar...
 199       wxMenuBar *menuBar = new wxMenuBar;
 200       menuBar->Append(menuFile, "&File");
 201       menuBar->Append(menuNav, "&Navigate");
 202
 203     // ... and attach this menu bar to the frame
 204       SetMenuBar(menuBar);
 205
 206       CreateStatusBar(2);
 207
 208       html = new wxHtmlWindow(this);
 209       html -> SetRelatedFrame(this, "VFS Demo: '%s'");
 210       html -> SetRelatedStatusBar(1);
 211       html -> LoadPage("start.htm");
 212    }
 213
 214
 215 // event handlers
 216
 217    void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 218    {
 219     // TRUE is to force the frame to close
 220       Close(TRUE);
 221    }
 222
 223    void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 224    {
 225    }
 226
 227
 228
 229    void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event))
 230    {
 231    if (!html -> HistoryBack()) wxMessageBox("You reached prehistory era!");
 232    }
 233
 234
 235    void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event))
 236    {
 237    if (!html -> HistoryForward()) wxMessageBox("No more items in history!");
 238    }
 239
 240
 241
 242
 243
 244