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(wxT("X"), wxT("%i"), &ax);
  51         tag.ScanParam(wxT("Y"), wxT("%i"), &ay);
  52         if (tag.HasParam(wxT("FLOAT")))
  53             fl = ax;
  54
  55         wnd = new wxTextCtrl(m_WParser->GetWindow(), -1, tag.GetParam(wxT("NAME")),
  56                              wxPoint(0,0), wxSize(ax, ay), wxTE_MULTILINE);
  57         wnd->Show(TRUE);
  58
  59         m_WParser->GetContainer()->InsertCell(new wxHtmlWidgetCell(wnd, fl));
  60
  61         return FALSE;
  62     }
  63
  64 TAG_HANDLER_END(MYBIND)
  65
  66
  67
  68 TAGS_MODULE_BEGIN(MyBind)
  69
  70     TAGS_MODULE_ADD(MYBIND)
  71
  72 TAGS_MODULE_END(MyBind)
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82 // ----------------------------------------------------------------------------
  83 // private classes
  84 // ----------------------------------------------------------------------------
  85
  86 // Define a new application type, each program should derive a class from wxApp
  87    class MyApp : public wxApp
  88    {
  89    public:
  90     // override base class virtuals
  91     // ----------------------------
  92
  93     // this one is called on application startup and is a good place for the app
  94     // initialization (doing it here and not in the ctor allows to have an error
  95     // return: if OnInit() returns false, the application terminates)
  96       virtual bool OnInit();
  97    };
  98
  99 // Define a new frame type: this is going to be our main frame
 100    class MyFrame : public wxFrame
 101    {
 102    public:
 103     // ctor(s)
 104       MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
 105
 106     // event handlers (these functions should _not_ be virtual)
 107       void OnQuit(wxCommandEvent& event);
 108       void OnAbout(wxCommandEvent& event);
 109       void OnBack(wxCommandEvent& event);
 110       void OnForward(wxCommandEvent& event);
 111
 112    private:
 113     // any class wishing to process wxWindows events must use this macro
 114     DECLARE_EVENT_TABLE()
 115    };
 116
 117 // ----------------------------------------------------------------------------
 118 // constants
 119 // ----------------------------------------------------------------------------
 120
 121 // IDs for the controls and the menu commands
 122    enum
 123    {
 124     // menu items
 125    Minimal_Quit = 1,
 126    Minimal_About,
 127    Minimal_Back,
 128    Minimal_Forward,
 129
 130     // controls start here (the numbers are, of course, arbitrary)
 131    Minimal_Text = 1000,
 132    };
 133
 134 // ----------------------------------------------------------------------------
 135 // event tables and other macros for wxWindows
 136 // ----------------------------------------------------------------------------
 137
 138 // the event tables connect the wxWindows events with the functions (event
 139 // handlers) which process them. It can be also done at run-time, but for the
 140 // simple menu events like this the static method is much simpler.
 141    BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 142    EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
 143    EVT_MENU(Minimal_About, MyFrame::OnAbout)
 144    EVT_MENU(Minimal_Back, MyFrame::OnBack)
 145    EVT_MENU(Minimal_Forward, MyFrame::OnForward)
 146    END_EVENT_TABLE()
 147
 148    // Create a new application object: this macro will allow wxWindows to create
 149    // the application object during program execution (it's better than using a
 150    // static object for many reasons) and also declares the accessor function
 151    // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 152    // not wxApp)
 153    IMPLEMENT_APP(MyApp)
 154
 155    // ============================================================================
 156    // implementation
 157    // ============================================================================
 158
 159    // ----------------------------------------------------------------------------
 160    // the application class
 161    // ----------------------------------------------------------------------------
 162
 163    // `Main program' equivalent: the program execution "starts" here
 164    bool MyApp::OnInit()
 165    {
 166     // Create the main application window
 167       MyFrame *frame = new MyFrame("wxHtmlWindow testing application",
 168          wxPoint(50, 50), wxSize(640, 480));
 169
 170     // Show it and tell the application that it's our main window
 171     // @@@ what does it do exactly, in fact? is it necessary here?
 172       frame->Show(TRUE);
 173       SetTopWindow(frame);
 174
 175     // success: wxApp::OnRun() will be called which will enter the main message
 176     // loop and the application will run. If we returned FALSE here, the
 177     // application would exit immediately.
 178       return TRUE;
 179    }
 180
 181 // ----------------------------------------------------------------------------
 182 // main frame
 183 // ----------------------------------------------------------------------------
 184
 185 wxHtmlWindow *html;
 186
 187 // frame constructor
 188    MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 189    : wxFrame((wxFrame *)NULL, -1, title, pos, size)
 190    {
 191     // create a menu bar
 192       wxMenu *menuFile = new wxMenu;
 193       wxMenu *menuNav = new wxMenu;
 194
 195       menuFile->Append(Minimal_Quit, "E&xit");
 196       menuNav->Append(Minimal_Back, "Go &BACK");
 197       menuNav->Append(Minimal_Forward, "Go &FORWARD");
 198
 199     // now append the freshly created menu to the menu bar...
 200       wxMenuBar *menuBar = new wxMenuBar;
 201       menuBar->Append(menuFile, "&File");
 202       menuBar->Append(menuNav, "&Navigate");
 203
 204     // ... and attach this menu bar to the frame
 205       SetMenuBar(menuBar);
 206
 207       CreateStatusBar(2);
 208
 209       html = new wxHtmlWindow(this);
 210       html -> SetRelatedFrame(this, "VFS Demo: '%s'");
 211       html -> SetRelatedStatusBar(1);
 212       html -> LoadPage("start.htm");
 213    }
 214
 215
 216 // event handlers
 217
 218    void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 219    {
 220     // TRUE is to force the frame to close
 221       Close(TRUE);
 222    }
 223
 224    void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 225    {
 226    }
 227
 228
 229
 230    void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event))
 231    {
 232    if (!html -> HistoryBack()) wxMessageBox("You reached prehistory era!");
 233    }
 234
 235
 236    void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event))
 237    {
 238    if (!html -> HistoryForward()) wxMessageBox("No more items in history!");
 239    }
 240
 241
 242
 243
 244
 245