git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2613 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			262 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			262 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/////////////////////////////////////////////////////////////////////////////
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// Name:        demo.cpp
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// Purpose:     wxHelpController demo
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// Author:      Karsten Ballueder
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// Modified by:
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// Created:     04/01/98
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// RCS-ID:      $Id$
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// Copyright:   (c) Karsten Ballueder, Julian Smart
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// Licence:     wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#ifdef __GNUG__
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    #pragma implementation "demo.cpp"
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    #pragma interface "demo.cpp"
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#endif
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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    #pragma hdrstop
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#endif
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// for all others, include the necessary headers (this file is usually all you
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// need because it includes almost all "standard" wxWindows headers
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#ifndef WX_PRECOMP
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    #include "wx/wx.h"
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#endif
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#include "wx/help.h"
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// ----------------------------------------------------------------------------
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// ressources
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// ----------------------------------------------------------------------------
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// the application icon
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#if defined(__WXGTK__) || defined(__WXMOTIF__)
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    #include "mondrian.xpm"
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#endif
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// Define a new application type, each program should derive a class from wxApp
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class MyApp : public wxApp
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{
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public:
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    // override base class virtuals
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    // ----------------------------
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    // this one is called on application startup and is a good place for the app
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    // initialization (doing it here and not in the ctor allows to have an error
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    // return: if OnInit() returns false, the application terminates)
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    virtual bool OnInit();
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};
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// Define a new frame type: this is going to be our main frame
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class MyFrame : public wxFrame
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{
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public:
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    // ctor(s)
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    MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
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    // event handlers (these functions should _not_ be virtual)
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    void OnQuit(wxCommandEvent& event);
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    void OnHelp(wxCommandEvent& event);
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private:
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   wxHelpController  help;
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    // any class wishing to process wxWindows events must use this macro
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   DECLARE_EVENT_TABLE()
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// IDs for the controls and the menu commands
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enum
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{
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    // menu items
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    HelpDemo_Quit = 1,
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    HelpDemo_Help_Index,
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    HelpDemo_Help_Classes,
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    HelpDemo_Help_Functions,
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    HelpDemo_Help_Help,
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    HelpDemo_Help_KDE,
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    HelpDemo_Help_GNOME,
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    HelpDemo_Help_Netscape,
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    HelpDemo_Help_Search,
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    // controls start here (the numbers are, of course, arbitrary)
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    HelpDemo_Text = 1000,
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};
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// ----------------------------------------------------------------------------
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// event tables and other macros for wxWindows
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// ----------------------------------------------------------------------------
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// the event tables connect the wxWindows events with the functions (event
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// handlers) which process them. It can be also done at run-time, but for the
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// simple menu events like this the static method is much simpler.
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BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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    EVT_MENU(HelpDemo_Quit,  MyFrame::OnQuit)
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    EVT_MENU(HelpDemo_Help_Index, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_Classes, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_Functions, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_Help, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_KDE, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_GNOME, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_Netscape, MyFrame::OnHelp)
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    EVT_MENU(HelpDemo_Help_Search, MyFrame::OnHelp)
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END_EVENT_TABLE()
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// Create a new application object: this macro will allow wxWindows to create
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// the application object during program execution (it's better than using a
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// static object for many reasons) and also declares the accessor function
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// wxGetApp() which will return the reference of the right type (i.e. MyApp and
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// not wxApp)
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IMPLEMENT_APP(MyApp)
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// the application class
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// ----------------------------------------------------------------------------
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// `Main program' equivalent: the program execution "starts" here
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bool MyApp::OnInit()
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{
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    // Create the main application window
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    MyFrame *frame = new MyFrame("HelpDemo wxWindows App",
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                                 wxPoint(50, 50), wxSize(450, 340));
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    frame->Show(TRUE);
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    SetTopWindow(frame);
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    // success: wxApp::OnRun() will be called which will enter the main message
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    // loop and the application will run. If we returned FALSE here, the
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    // application would exit immediately.
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    return TRUE;
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}
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// ----------------------------------------------------------------------------
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// main frame
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// ----------------------------------------------------------------------------
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// frame constructor
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MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
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       : wxFrame((wxFrame *)NULL, -1, title, pos, size)
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{
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    // set the frame icon
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    SetIcon(wxICON(mondrian));
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    // create a menu bar
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    wxMenu *menuFile = new wxMenu;
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    menuFile->Append(HelpDemo_Help_Index, "&Help Index...");
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    menuFile->Append(HelpDemo_Help_Classes, "&Help on Classes...");
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    menuFile->Append(HelpDemo_Help_Functions, "&Help on Functions...");
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    menuFile->Append(HelpDemo_Help_Help, "&About Help Demo...");
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    menuFile->AppendSeparator();
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    menuFile->Append(HelpDemo_Help_Search, "&Search help...");
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#ifdef __WXGTK__
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    menuFile->AppendSeparator();
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    menuFile->Append(HelpDemo_Help_KDE, "Use &KDE");
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    menuFile->Append(HelpDemo_Help_GNOME, "Use &GNOME");
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    menuFile->Append(HelpDemo_Help_Netscape, "Use &Netscape");
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#endif
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    menuFile->AppendSeparator();
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    menuFile->Append(HelpDemo_Quit, "E&xit");
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    // now append the freshly created menu to the menu bar...
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    wxMenuBar *menuBar = new wxMenuBar;
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    menuBar->Append(menuFile, "&File");
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    // ... and attach this menu bar to the frame
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    SetMenuBar(menuBar);
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    // create a status bar just for fun (by default with 1 pane only)
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    CreateStatusBar();
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    SetStatusText("Welcome to wxWindows!");
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    // now create some controls
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    // a panel first - if there were several controls, it would allow us to
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    // navigate between them from the keyboard
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    wxPanel *panel = new wxPanel(this, -1, wxPoint(0, 0), wxSize(400, 200));
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    // and a static control whose parent is the panel
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    (void)new wxStaticText(panel, -1, "Hello, world!", wxPoint(10, 10));
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    // initialise the help system
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    help.Initialize("doc");
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}
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// event handlers
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
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{
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    // TRUE is to force the frame to close
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    Close(TRUE);
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}
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void MyFrame::OnHelp(wxCommandEvent& event)
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{
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   switch(event.GetId())
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   {
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   // Note: these DisplaySection calls use ids that are specific to wxExtHelpController
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   // (on Unix). For WinHelp, we'd need to use different context ids.
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   case HelpDemo_Help_Classes:
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      help.DisplaySection(1);
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      break;
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   case HelpDemo_Help_Functions:
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      help.DisplaySection(2);
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      break;
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   case HelpDemo_Help_Help:
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      help.DisplaySection(5);
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      break;
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   // These three calls are only used by wxExtHelpController
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   case HelpDemo_Help_KDE:
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      help.SetViewer("kdehelp");
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      break;
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   case HelpDemo_Help_GNOME:
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      help.SetViewer("gnome-help-browser");
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      break;
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   case HelpDemo_Help_Netscape:
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      help.SetViewer("netscape", wxHELP_NETSCAPE);
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      break;
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   case HelpDemo_Help_Search:
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   {
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      wxString key = wxGetTextFromUser("Search for?",
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                                       "Search help for keyword",
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                                       "",
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                                       this);
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      if(! key.IsEmpty())
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         help.KeywordSearch(key);
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   }
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   break;
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   case HelpDemo_Help_Index:
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   default:
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      help.DisplayContents();
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      break;
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   }
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}
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