src/gui/widgets/gl/demo/w_gl_demo.cpp

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/*  $Id: w_gl_demo.cpp 15756 2008-01-22 16:53:29Z dicuccio $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Andrey Yazhuk
 *
 * File Description:
 *    Demo application illustrating various components of w_gl library.
 */


#include <ncbi_pch.hpp>

#include <corelib/ncbiapp.hpp>
#include <corelib/ncbiargs.hpp>
#include <corelib/ncbienv.hpp>
#include <corelib/ncbireg.hpp>

#include "ruler_demo_panel.hpp"

#include <gui/widgets/fl/tab_control.hpp>
#include <gui/widgets/fl/frame_window.hpp>


USING_NCBI_SCOPE;

/// Commands specific for this application
enum EDemoControlsCommands   {
    eCmdExit = 10000
};


class CDemoControlsClient : public  CTabControl,
                            public  IFrameWindowClient
{
public:
    virtual void    SetFrameWindow(CFrameWindow* frame)     {};
    virtual CMenuItem*    GetMenu()   {   return NULL;    };
    virtual void    UpdateMenu(CMenuItem& root) {};
};


class CWGLDemoApp : public CNcbiApplication,
                    public CCommandTarget // application should be able to handle commands
{
public:
    virtual void Init(void);
    virtual int  Run(void);
    virtual void Exit(void);

    DECLARE_EVENT_MAP();

    void    OnExit();

protected:
    void    x_Create();
    void    x_Destroy();

protected:
    CRef<CResourceManager>  m_ResourceManager;
    auto_ptr<CFrameWindow>  m_Frame;
    auto_ptr<CDemoControlsClient>   m_Client;

    auto_ptr<CRulerDemoGroup>       m_RulerGroup;
};


/// Event Map
BEGIN_EVENT_MAP(CWGLDemoApp, CCommandTarget)
    ON_COMMAND(eCmdExit, &CWGLDemoApp::OnExit)
END_EVENT_MAP()



DEFINE_MENU(BaseMenu)
    SUBMENU("&File")
        MENU_ITEM(eCmdExit, "E&xit")
    END_SUBMENU()
END_MENU()


void CWGLDemoApp::Init(void)
{
    auto_ptr<CArgDescriptions> arg_desc(new CArgDescriptions);
    arg_desc->SetUsageContext(GetArguments().GetProgramBasename(),
                              "w_gl demo application");
    SetupArgDescriptions(arg_desc.release());
}


int CWGLDemoApp::Run(void)
{
    x_Create();

    m_Frame->show();
    m_RulerGroup->CreateCanvas();

    while( m_Frame -> shown() ){ // message loop
        Fl::wait();
    }

    x_Destroy();
    return 0;
}


void CWGLDemoApp::Exit(void)
{
    SetDiagStream(0);
}


void  CWGLDemoApp::x_Create()
{
    CResourceManager::CreateInstance("Z:\\Projects\\c++\\src\\gui\\res\\share\\gbench; <home>; <res>; <std>");
    m_ResourceManager = CResourceManager::GetInstance();
    CMenu::SetResourceManager(*m_ResourceManager);

    m_ResourceManager->RegisterAlias("menu::zoom_in", "zoom_in.png");
    m_ResourceManager->RegisterAlias("menu::zoom_out", "zoom_out.png");

    m_Frame.reset(new CFrameWindow(0, 0, 800, 600));
    m_Frame->end();

    /// create backbone of top-level menu
    CMenuItem* root = CreateMenuItems(BaseMenu);
    m_Frame->ResetMenu(*root);
    delete root;

    /// add Client and merge client menus
    m_Client.reset(new CDemoControlsClient());
    m_Client->end();

    m_Frame->SetClient(m_Client.get());

    m_Frame->AddListener(this); // let application process commands

    // create Tabs
    m_RulerGroup.reset(new CRulerDemoGroup());
    m_Client->AddTab(m_RulerGroup.get(), "CRuler");

    //AddListener(m_RulerPanel.get());

    m_Client->SelectTab(0);
}


void CWGLDemoApp::x_Destroy()
{
    m_Frame->SetClient(NULL);
}


void CWGLDemoApp::OnExit()
{
    m_Frame->hide();
}


/////////////////////////////////////////////////////////////////////////////
//  MAIN

int main(int argc, const char* argv[])
{
    // Execute main application function
    return CWGLDemoApp().AppMain(argc, argv, 0, eDS_Default, 0);
}

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