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OS/2 Shareware BBS: 10 Tools
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wxos2240.zip
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wxWindows-2.4.0
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samples
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widget.cpp
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C/C++ Source or Header
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2002-11-09
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7KB
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223 lines
/////////////////////////////////////////////////////////////////////////////
// Name: virtua;.cpp
// Purpose: wxHtml testing example
// demonstrates virtual file systems feature
/////////////////////////////////////////////////////////////////////////////
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma implementation "test.cpp"
#pragma interface "test.cpp"
#endif
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWindows headers
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/html/htmlwin.h"
/*
TAG HANDER FOR 'MYBIND' TAG
*/
#include "wx/html/m_templ.h"
TAG_HANDLER_BEGIN(MYBIND, "MYBIND")
TAG_HANDLER_PROC(tag)
{
wxWindow *wnd;
int ax, ay;
int fl = 0;
tag.ScanParam(wxT("X"), wxT("%i"), &ax);
tag.ScanParam(wxT("Y"), wxT("%i"), &ay);
if (tag.HasParam(wxT("FLOAT"))) fl = ax;
wnd = new wxTextCtrl(m_WParser->GetWindow(), -1, tag.GetParam(wxT("NAME")),
wxPoint(0,0), wxSize(ax, ay), wxTE_MULTILINE);
wnd->Show(TRUE);
m_WParser->GetContainer()->InsertCell(new wxHtmlWidgetCell(wnd, fl));
return FALSE;
}
TAG_HANDLER_END(MYBIND)
TAGS_MODULE_BEGIN(MyBind)
TAGS_MODULE_ADD(MYBIND)
TAGS_MODULE_END(MyBind)
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------
// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit();
};
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor(s)
MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnBack(wxCommandEvent& event);
void OnForward(wxCommandEvent& event);
private:
// any class wishing to process wxWindows events must use this macro
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// IDs for the controls and the menu commands
enum
{
// menu items
Minimal_Quit = 1,
Minimal_Back,
Minimal_Forward,
// controls start here (the numbers are, of course, arbitrary)
Minimal_Text = 1000,
};
// ----------------------------------------------------------------------------
// event tables and other macros for wxWindows
// ----------------------------------------------------------------------------
// the event tables connect the wxWindows events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
EVT_MENU(Minimal_Back, MyFrame::OnBack)
EVT_MENU(Minimal_Forward, MyFrame::OnForward)
END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWindows to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also declares the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
// `Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
// Create the main application window
MyFrame *frame = new MyFrame( _("wxHtmlWindow testing application"),
wxPoint(50, 50), wxSize(640, 480) );
// Show it and tell the application that it's our main window
// @@@ what does it do exactly, in fact? is it necessary here?
frame->Show(TRUE);
SetTopWindow(frame);
// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned FALSE here, the
// application would exit immediately.
return TRUE;
}
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
wxHtmlWindow *html;
// frame constructor
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
: wxFrame((wxFrame *)NULL, -1, title, pos, size)
{
// create a menu bar
wxMenu *menuFile = new wxMenu;
wxMenu *menuNav = new wxMenu;
menuFile->Append(Minimal_Quit, _("E&xit"));
menuNav->Append(Minimal_Back, _("Go &BACK"));
menuNav->Append(Minimal_Forward, _("Go &FORWARD"));
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar;
menuBar->Append(menuFile, _("&File"));
menuBar->Append(menuNav, _("&Navigate"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
CreateStatusBar(2);
html = new wxHtmlWindow(this);
html -> SetRelatedFrame(this, _("VFS Demo: '%s'"));
html -> SetRelatedStatusBar(1);
html -> LoadPage(wxT("start.htm"));
}
// event handlers
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// TRUE is to force the frame to close
Close(TRUE);
}
void MyFrame::OnBack(wxCommandEvent& WXUNUSED(event))
{
if (!html -> HistoryBack()) wxMessageBox(_("You reached prehistory era!"));
}
void MyFrame::OnForward(wxCommandEvent& WXUNUSED(event))
{
if (!html -> HistoryForward()) wxMessageBox(_("No more items in history!"));
}