wxWidgets_minimal.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        minimal.cpp
// Purpose:     Minimal wxWidgets sample
// Author:      Julian Smart
// Modified by:
// Created:     04/01/98
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"


// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

#include "GLScene.h"
using namespace GLScene;

// ----------------------------------------------------------------------------
// resources
// ----------------------------------------------------------------------------

// the application icon (under Windows it is in resources and even
// though we could still include the XPM here it would be unused)
#ifndef wxHAS_IMAGES_IN_RESOURCES
    #include "../sample.xpm"
#endif

// ----------------------------------------------------------------------------
// 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() wxOVERRIDE;
};

// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
    // ctor(s)
    MyFrame(const wxString& title);

    // event handlers (these functions should _not_ be virtual)
    void OnQuit(wxCommandEvent& event);
    void OnAbout(wxCommandEvent& event);
    void OnGLScene(wxCommandEvent& event);
    void OnIdle(wxIdleEvent& event);

private:
    TGLScene *TheScene = NULL;
    void CreateGLScene(void);

    // any class wishing to process wxWidgets events must use this macro
    wxDECLARE_EVENT_TABLE();
};

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// IDs for the controls and the menu commands
enum
{
    // menu items
    Minimal_Quit = wxID_EXIT,

    // it is important for the id corresponding to the "About" command to have
    // this standard value as otherwise it won't be handled properly under Mac
    // (where it is special and put into the "Apple" menu)
    Minimal_About = wxID_ABOUT,

		Minimal_GLScene = wxID_ANY
};

// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------

// the event tables connect the wxWidgets 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.
wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
    EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
    EVT_MENU(Minimal_About, MyFrame::OnAbout)
		EVT_MENU(Minimal_GLScene, MyFrame::OnGLScene)
		EVT_IDLE(MyFrame::OnIdle)
wxEND_EVENT_TABLE()

// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
wxIMPLEMENT_APP(MyApp);

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------

// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
    // call the base class initialization method, currently it only parses a
    // few common command-line options but it could be do more in the future
    if ( !wxApp::OnInit() )
        return false;

    // create the main application window
    MyFrame *frame = new MyFrame("Minimal wxWidgets App");

    // and show it (the frames, unlike simple controls, are not shown when
    // created initially)
    frame->Show(true);

    // 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
// ----------------------------------------------------------------------------

#undef wxUSE_MENUBAR
#undef wxUSE_STATUSBAR

// frame constructor
MyFrame::MyFrame(const wxString& title)
       : wxFrame(NULL, wxID_ANY, title)
{
    // set the frame icon
    SetIcon(wxICON(sample));

#if wxUSE_MENUBAR
    // create a menu bar
    wxMenu *fileMenu = new wxMenu;

    // the "About" item should be in the help menu
    wxMenu *helpMenu = new wxMenu;
    helpMenu->Append(Minimal_GLScene, "&GLScene", "Create GLScene");
    helpMenu->Append(Minimal_About, "&About\tF1", "Show about dialog");

    fileMenu->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");

    // now append the freshly created menu to the menu bar...
    wxMenuBar *menuBar = new wxMenuBar();
    menuBar->Append(fileMenu, "&File");
    menuBar->Append(helpMenu, "&Help");

    // ... and attach this menu bar to the frame
    SetMenuBar(menuBar);
#else // !wxUSE_MENUBAR
    // If menus are not available add a button to access the about box
    wxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
    wxButton* aboutBtn = new wxButton(this, wxID_ANY, "About...");
    aboutBtn->Bind(wxEVT_BUTTON, &MyFrame::OnAbout, this);
    sizer->Add(aboutBtn, wxSizerFlags().Center());
    wxButton* glsceneBtn = new wxButton(this, wxID_ANY, "GLScene");
    glsceneBtn->Bind(wxEVT_BUTTON, &MyFrame::OnGLScene, this);
    sizer->Add(glsceneBtn, wxSizerFlags().Center());
    SetSizer(sizer);
#endif // wxUSE_MENUBAR/!wxUSE_MENUBAR

#if wxUSE_STATUSBAR
    // create a status bar just for fun (by default with 1 pane only)
    CreateStatusBar(2);
    SetStatusText("Welcome to wxWidgets!");
#endif // wxUSE_STATUSBAR
}


// event handlers

void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
	if (TheScene != NULL)
		delete TheScene;

    // true is to force the frame to close
    Close(true);
}

void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
    wxMessageBox(wxString::Format
                 (
                    "Welcome to %s!\n"
                    "\n"
                    "This is the minimal wxWidgets sample\n"
                    "running under %s.",
                    wxVERSION_STRING,
                    wxGetOsDescription()
                 ),
                 "About wxWidgets minimal sample",
                 wxOK | wxICON_INFORMATION,
                 this);
}

void MyFrame::OnGLScene(wxCommandEvent& WXUNUSED(event))
{
	CreateGLScene();
}

void MyFrame::OnIdle(wxIdleEvent& WXUNUSED(event))
{
  //We ask for as many idle messages as we can handle
  //	this keeps our app as smooth as it can possibly
  //	be. It will also max out the CPU, but because the
  //	program stays responsive, it doesn't make multitasking
  //	impossible while it runs.

//  if (TheScene != NULL)
//    TheScene->Refresh();
//  event.RequestMore();
}

/*
 * Fonction principale créant la scène
 * Ne pas oublier de mettre la directive RUN_SAMPLE lors de la compilation
 */
void MyFrame::CreateGLScene(void)
{
	if (TheScene == NULL)
	{
		TheScene = new TGLScene();
		// Création du contexte
		TheScene->Create_GLContextWindow();
		// Création de la scène
		TheScene->Create_GLScene();
		// Pour le timer pour une animation
		TheScene->TimerStepms = 500;
	}

  // Création de la windows
  TheScene->Create_GLWindow("GLScene", true);

  // Création du Menu
  TheScene->Create_GLMenu({"Menu 1", "Menu 2"});

  // Création de la sous window
  TheScene->Create_GLSubWindow(200, 50, 4, 200, glwBottomAll);

  // Quelques infos
  TheScene->Get_GLInfo();

  // Affichage
  TheScene->Show();

  TheScene->Run();
}