samples/html/widget/widget.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        zip.cpp
   3 // Purpose:     wxHtml sample: Demonstrates embedded controls
   4 // Author:      ?
   5 // Modified by:
   6 // Created:     ?
   7 // Copyright:   (c) wxWidgets team
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  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" wxWidgets headers
  20 #ifndef WX_PRECOMP
  21     #include "wx/wx.h"
  22 #endif
  23
  24 #include "wx/html/htmlwin.h"
  25 #include "../../sample.xpm"
  26
  27
  28
  29 // ----------------------------------------------------------------------------
  30 // TAG HANDER FOR 'MYBIND' TAG
  31 // ----------------------------------------------------------------------------
  32
  33 #include "wx/html/m_templ.h"
  34
  35 TAG_HANDLER_BEGIN(MYBIND, "MYBIND")
  36
  37 TAG_HANDLER_PROC(tag)
  38 {
  39     wxWindow *wnd;
  40     int ax, ay;
  41     int fl = 0;
  42
  43     tag.ScanParam(wxT("X"), wxT("%i"), &ax);
  44     tag.ScanParam(wxT("Y"), wxT("%i"), &ay);
  45
  46     if (tag.HasParam(wxT("FLOAT"))) fl = ax;
  47
  48     wnd = new wxTextCtrl
  49               (
  50                 m_WParser->GetWindowInterface()->GetHTMLWindow(),
  51                 wxID_ANY,
  52                 tag.GetParam(wxT("NAME")),
  53                 wxPoint(0,0),
  54                 wxSize(ax, ay),
  55                 wxTE_MULTILINE
  56               );
  57
  58     wnd->Show(true);
  59
  60     m_WParser->GetContainer()->InsertCell(new wxHtmlWidgetCell(wnd, fl));
  61
  62     return false;
  63 }
  64
  65 TAG_HANDLER_END(MYBIND)
  66
  67
  68
  69 TAGS_MODULE_BEGIN(MyBind)
  70
  71     TAGS_MODULE_ADD(MYBIND)
  72
  73 TAGS_MODULE_END(MyBind)
  74
  75
  76 // ----------------------------------------------------------------------------
  77 // private classes
  78 // ----------------------------------------------------------------------------
  79
  80 // Define a new application type, each program should derive a class from wxApp
  81 class MyApp : public wxApp
  82 {
  83 public:
  84     // override base class virtuals
  85     // ----------------------------
  86
  87     // this one is called on application startup and is a good place for the app
  88     // initialization (doing it here and not in the ctor allows to have an error
  89     // return: if OnInit() returns false, the application terminates)
  90     virtual bool OnInit();
  91 };
  92
  93 // Define a new frame type: this is going to be our main frame
  94 class MyFrame : public wxFrame
  95 {
  96 public:
  97     // ctor(s)
  98     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
  99
 100     // event handlers (these functions should _not_ be virtual)
 101     void OnQuit(wxCommandEvent& event);
 102     void OnBack(wxCommandEvent& event);
 103     void OnForward(wxCommandEvent& event);
 104
 105 private:
 106     // any class wishing to process wxWidgets events must use this macro
 107     DECLARE_EVENT_TABLE()
 108 };
 109
 110 // ----------------------------------------------------------------------------
 111 // constants
 112 // ----------------------------------------------------------------------------
 113
 114 // IDs for the controls and the menu commands
 115 enum
 116 {
 117     // menu items
 118     Minimal_Quit = 1,
 119     Minimal_Back,
 120     Minimal_Forward,
 121
 122     // controls start here (the numbers are, of course, arbitrary)
 123     Minimal_Text = 1000
 124 };
 125
 126 // ----------------------------------------------------------------------------
 127 // event tables and other macros for wxWidgets
 128 // ----------------------------------------------------------------------------
 129
 130 // the event tables connect the wxWidgets events with the functions (event
 131 // handlers) which process them. It can be also done at run-time, but for the
 132 // simple menu events like this the static method is much simpler.
 133 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 134     EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
 135     EVT_MENU(Minimal_Back, MyFrame::OnBack)
 136     EVT_MENU(Minimal_Forward, MyFrame::OnForward)
 137 END_EVENT_TABLE()
 138
 139 // Create a new application object: this macro will allow wxWidgets to create
 140 // the application object during program execution (it's better than using a
 141 // static object for many reasons) and also declares the accessor function
 142 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 143 // not wxApp)
 144 IMPLEMENT_APP(MyApp)
 145
 146 // ============================================================================
 147 // implementation
 148 // ============================================================================
 149
 150 // ----------------------------------------------------------------------------
 151 // the application class
 152 // ----------------------------------------------------------------------------
 153
 154 // `Main program' equivalent: the program execution "starts" here
 155 bool MyApp::OnInit()
 156 {
 157     if ( !wxApp::OnInit() )
 158         return false;
 159
 160     // Create the main application window
 161     MyFrame *frame = new MyFrame( _("wxHtmlWindow testing application"),
 162         wxDefaultPosition, wxSize(640, 480) );
 163
 164     // Show it
 165     frame->Show(true);
 166
 167     // success: wxApp::OnRun() will be called which will enter the main message
 168     // loop and the application will run. If we returned false here, the
 169     // application would exit immediately.
 170     return true;
 171 }
 172
 173 // ----------------------------------------------------------------------------
 174 // main frame
 175 // ----------------------------------------------------------------------------
 176
 177 wxHtmlWindow *html;
 178
 179 // frame constructor
 180 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 181     : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size)
 182 {
 183     SetIcon(wxICON(sample));
 184
 185     // create a menu bar
 186     wxMenu *menuFile = new wxMenu;
 187     wxMenu *menuNav = new wxMenu;
 188
 189     menuFile->Append(Minimal_Quit, _("E&xit"));
 190     menuNav->Append(Minimal_Back, _("Go &BACK"));
 191     menuNav->Append(Minimal_Forward, _("Go &FORWARD"));
 192
 193     // now append the freshly created menu to the menu bar...
 194     wxMenuBar *menuBar = new wxMenuBar;
 195     menuBar->Append(menuFile, _("&File"));
 196     menuBar->Append(menuNav, _("&Navigate"));
 197
 198     // ... and attach this menu bar to the frame
 199     SetMenuBar(menuBar);
 200
 201     SetIcon(wxIcon(sample_xpm));
 202
 203 #if wxUSE_STATUSBAR
 204     CreateStatusBar(2);
 205 #endif // wxUSE_STATUSBAR
 206
 207     html = new wxHtmlWindow(this);
 208     html -> SetRelatedFrame(this, _("wxHTML Demo: '%s'"));
 209 #if wxUSE_STATUSBAR
 210     html -> SetRelatedStatusBar(1);
 211 #endif // wxUSE_STATUSBAR
 212     html -> LoadPage(wxT("start.htm"));
 213
 214 }
 215
 216
 217 // event handlers
 218
 219 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 220 {
 221     // true is to force the frame to close
 222     Close(true);
 223 }
 224
 225 void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event))
 226 {
 227     if (!html -> HistoryBack()) wxMessageBox(_("You reached prehistory era!"));
 228 }
 229
 230
 231 void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event))
 232 {
 233     if (!html -> HistoryForward()) wxMessageBox(_("No more items in history!"));
 234 }