demo_win_manager.cpp

来自「ncbi源码」· C++ 代码 · 共 287 行

/*
 * ===========================================================================
 * PRODUCTION $Log: demo_win_manager.cpp,v $
 * PRODUCTION Revision 1000.0  2004/06/01 21:32:29  gouriano
 * PRODUCTION PRODUCTION: IMPORTED [GCC34_MSVC7] Dev-tree R1.4
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: demo_win_manager.cpp,v 1000.0 2004/06/01 21:32:29 gouriano Exp $
 * ===========================================================================
 *
 *                            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:
 *    Test application for demonstartion of Window Manager and CFrameWindow classes
 */

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

#include <gui/utils/accel_table.hpp>

#include <gui/widgets/workspace/frame_window.hpp>
#include <gui/widgets/workspace/window_manager.hpp>
#include <gui/widgets/workspace/test_client.hpp>

#include <FL/Fl_Group.H>


USING_NCBI_SCOPE;

/// Commands specific for this application
enum EWMDemoCommands   {
    eCmdExit = 10000,
    eCmdCreateFLClient,
    eCmdCreateGLClient,
    eCmdDestroyClient
};

/////////////////////////////////////////////////////////////////////////////
//  CWinManagerApp

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

    void    x_Create();
    void    x_Destroy();
    void    x_CreateWindowManager();
        
    DECLARE_CMD_MAP()
    
    void    OnExit();
    void    OnCreateClient(TCmdID cmd); // range command handler
	void    OnDestroyClient();
    void    OnUpdateDestroyClient(ICmdUI* pCmdUI); // command update handler

private:
    CFrameWindow    *m_Frame;
    CWindowManager  *m_WindowManager;  
    
    list<IWMClient*>    m_Clients;
    int m_ClientsCount;
};


void CWinManagerApp::Init(void)
{
    // Create command-line argument descriptions class
    auto_ptr<CArgDescriptions> arg_desc(new CArgDescriptions);

    // Specify USAGE context
    arg_desc->SetUsageContext(GetArguments().GetProgramBasename(),
                              "Window Manager, Main Frame demo");

    arg_desc->AddFlag("plastic", "Use the plastic scheme");

    // Setup arg.descriptions for this application
    SetupArgDescriptions(arg_desc.release());
}

int CWinManagerApp::Run(void)
{
    CArgs args = GetArgs();

    if (args["plastic"]) {
        Fl::scheme("plastic");
    }
    
    char *argv[1];
    argv[0] = "demo_win_manager";

    x_Create();

    m_Frame->show();//1, argv);
    while(m_Frame->shown()) { // message loop
        Fl::wait();
    }

    x_Destroy();
        
    return 0;
}

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

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

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

/////////////////////////////////////////////////////////////////////////////
//  Application logic

/// Here we define static part of top-level menu. It contains empty submenus that
/// will be later used as merge points for clients
DEFINE_MENU(BaseMenu)
    SUBMENU("File")
        MENU_ITEM(eCmdCreateFLClient, "Create FLTK Client")
        MENU_ITEM(eCmdCreateGLClient, "Create OpenGL Client")
        MENU_ITEM(eCmdDestroyClient, "Destroy Client")
        MENU_SEPARATOR()
        MENU_ITEM(eCmdExit, "Exit")
    END_SUBMENU()
    SUBMENU("Commands") // merge point for clients
    END_SUBMENU()
    SUBMENU("Window") // merge point for Window Manager
    END_SUBMENU()
END_MENU()


BEGIN_CMD_MAP(CWinManagerApp, CCommandTarget)
    ON_COMMAND_RANGE(eCmdCreateFLClient, eCmdCreateGLClient, &CWinManagerApp::OnCreateClient)
	ON_COMMAND(eCmdDestroyClient, &CWinManagerApp::OnDestroyClient)
    ON_UPDATE_COMMAND_UI(eCmdDestroyClient, &CWinManagerApp::OnUpdateDestroyClient)
    ON_COMMAND(eCmdExit, &CWinManagerApp::OnExit)
END_CMD_MAP()

void    CWinManagerApp::x_Create()
{
    // initilize Resource Manager and Menu 
    CRef<CResourceManager> rm(new CResourceManager("<home>;<std>"));
    CMenu::SetResourceManager(rm);
    
    x_CreateWindowManager();
    
    m_Frame = new CFrameWindow(800, 600, "");    

    /// create backbone of top-level menu
    CMenuItem* root = CreateMenuItems(BaseMenu);
    m_Frame->ResetMenu(*root);   
    delete root;
    
    /// register hint for commands
    CMenu::SetCmdHint(eCmdExit, "Exits application");
    CMenu::SetCmdHint(eCmdCreateFLClient, "Creates new FLTK  window");
    CMenu::SetCmdHint(eCmdCreateGLClient, "Creates new OpenGL window");
    CMenu::SetCmdHint(eCmdDestroyClient, "Destroys current client window");

    /// add Client and merge client menus
    m_Frame->SetClient(m_WindowManager);

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

    // register accelerators for commands defined by the applicatio
    CAccelTable::RegisterAccelerator(FL_ALT  + 'X', eCmdExit);
    CAccelTable::RegisterAccelerator(FL_CTRL + 'F', eCmdCreateFLClient);
    CAccelTable::RegisterAccelerator(FL_CTRL + 'G', eCmdCreateGLClient);
    CAccelTable::RegisterAccelerator(FL_CTRL + 'D', eCmdDestroyClient);
}

void    CWinManagerApp::x_CreateWindowManager()
{
    m_WindowManager = new CWindowManager();

    // create clients   
    m_ClientsCount = 0;

    for( int i = 1; i < 1; i++) {
        OnCreateClient(eCmdCreateFLClient);
    }
}

void    CWinManagerApp::x_Destroy()
{
    m_Frame->SetClient(NULL);
    delete m_WindowManager;
    delete m_Frame;
    
    NON_CONST_ITERATE(list<IWMClient*>, it, m_Clients)  {
        delete *it;
    }
}

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

void CWinManagerApp::OnCreateClient(TCmdID cmd)
{
    int type = m_ClientsCount % 3 + 1;
    string label = "Client " + NStr::IntToString(m_ClientsCount + 1);
	IWMClient* client =  (cmd == eCmdCreateFLClient) ? (IWMClient*) new CFLTestClient(type, label.c_str())
						   : (IWMClient*) new CGLTestClient(type, label.c_str());
    m_Clients.push_back(client);

    m_ClientsCount++;
    
    // add client to Window Manager
    m_WindowManager->AddClientInTab(client);
}

void    CWinManagerApp::OnUpdateDestroyClient(ICmdUI* pCmdUI)
{
    pCmdUI->Enable(m_WindowManager  &&  m_WindowManager->GetActiveClient());
}

void    CWinManagerApp::OnDestroyClient()
{
    IWMClient* client = m_WindowManager ? m_WindowManager->GetActiveClient() : NULL;
    if(client)  {
        if(m_WindowManager->RemoveClient(client))   {
            list<IWMClient*>::iterator it = find(m_Clients.begin(), m_Clients.end(), client);
            m_Clients.erase(it);
            delete client;
        }
    }
}

/*
 * ===========================================================================
 * $Log: demo_win_manager.cpp,v $
 * Revision 1000.0  2004/06/01 21:32:29  gouriano
 * PRODUCTION: IMPORTED [GCC34_MSVC7] Dev-tree R1.4
 *
 * Revision 1.4  2004/05/21 22:27:56  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.3  2004/05/20 12:43:09  dicuccio
 * Minor formatting change
 *
 * Revision 1.2  2004/05/13 17:37:36  yazhuk
 * Added support for menu hints, accelerators, command to create OpenGL client
 *
 * Revision 1.1  2004/05/07 14:27:53  yazhuk
 * Initial revision
 *
 * ===========================================================================
 */