kiway.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
 * Copyright (C) 2016-2020 KiCad Developers, see CHANGELOG.TXT for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef KIWAY_H_
#define KIWAY_H_

#include <atomic>
#include <wx/defs.h>
#include <wx/event.h>
#include <import_export.h>
#include <search_stack.h>
#include <project.h>
#include <frame_type.h>
#include <mail_type.h>
#include <ki_exception.h>


#define KIFACE_VERSION      1
#define KIFACE_GETTER       KIFACE_1

// The KIFACE acquisition function is declared extern "C" so its name should not
// be mangled.
#define KIFACE_INSTANCE_NAME_AND_VERSION   "KIFACE_1"

#ifndef SWIG
#if defined(__linux__) || defined(__FreeBSD__)
 #define LIB_ENV_VAR    wxT( "LD_LIBRARY_PATH" )
#elif defined(__WXMAC__)
 #define LIB_ENV_VAR    wxT( "DYLD_LIBRARY_PATH" )
#elif defined(_WIN32)
 #define LIB_ENV_VAR    wxT( "PATH" )
#else
 #error Platform support missing
#endif
#endif  // SWIG

class wxConfigBase;
class wxWindow;
class PGM_BASE;
class KIWAY;
class KIWAY_PLAYER;
class wxTopLevelWindow;


struct KIFACE
{
    // The order of functions establishes the vtable sequence, do not change the
    // order of functions in this listing unless you recompile all clients of
    // this interface.

    virtual ~KIFACE() throw() {}

#define KFCTL_STANDALONE        (1<<0)  
#define KFCTL_CPP_PROJECT_SUITE (1<<1)  


    virtual bool OnKifaceStart( PGM_BASE* aProgram, int aCtlBits ) = 0;

    virtual void OnKifaceEnd() = 0;

    virtual wxWindow* CreateWindow( wxWindow* aParent, int aClassId,
                                    KIWAY* aKIWAY, int aCtlBits = 0 ) = 0;

    virtual void SaveFileAs( const wxString& srcProjectBasePath,
                             const wxString& srcProjectName,
                             const wxString& newProjectBasePath,
                             const wxString& newProjectName,
                             const wxString& srcFilePath,
                             wxString& aErrors )
    {
        // If a KIFACE owns files then it needs to implement this....
    }

    virtual void* IfaceOrAddress( int aDataId ) = 0;
};


class KIWAY : public wxEvtHandler
{
    friend struct PGM_SINGLE_TOP;        // can use set_kiface()

public:
    enum FACE_T
    {
        FACE_SCH,               
        FACE_PCB,               
        FACE_CVPCB,
        FACE_GERBVIEW,
        FACE_PL_EDITOR,
        FACE_PCB_CALCULATOR,
        FACE_BMP2CMP,
        FACE_PYTHON,

        KIWAY_FACE_COUNT
    };

    ~KIWAY() throw () {}

    static FACE_T KifaceType( FRAME_T aFrameType );

    // If you change the vtable, recompile all of KiCad.

    virtual KIFACE* KiFACE( FACE_T aFaceId, bool doLoad = true );

    virtual KIWAY_PLAYER* Player( FRAME_T aFrameType, bool doCreate = true,
                                  wxTopLevelWindow* aParent = nullptr );

    virtual bool PlayerClose( FRAME_T aFrameType, bool doForce );

    virtual bool PlayersClose( bool doForce );

    virtual void ExpressMail( FRAME_T aDestination, MAIL_T aCommand, std::string& aPayload,
                              wxWindow* aSource = nullptr );

    virtual PROJECT& Prj() const;

    virtual void SetLanguage( int aLanguage );

    virtual void CommonSettingsChanged( bool aEnvVarsChanged, bool aTextVarsChanged );

    virtual void ProjectChanged();

    KIWAY( PGM_BASE* aProgram, int aCtlBits, wxFrame* aTop = nullptr );

    void SetTop( wxFrame* aTop );
    wxFrame* GetTop() { return m_top; }

    void OnKiCadExit();

    void OnKiwayEnd();

    bool ProcessEvent( wxEvent& aEvent ) override;

private:
    const wxString dso_search_path( FACE_T aFaceId );

#if 0
    void player_destroy_handler( wxWindowDestroyEvent& event );
#endif

    bool set_kiface( FACE_T aFaceType, KIFACE* aKiface )
    {
        if( (unsigned) aFaceType < (unsigned) KIWAY_FACE_COUNT )
        {
            m_kiface[aFaceType] = aKiface;
            return true;
        }

        return false;
    }

    KIWAY_PLAYER* GetPlayerFrame( FRAME_T aFrameType );

    static KIFACE*  m_kiface[KIWAY_FACE_COUNT];
    static int      m_kiface_version[KIWAY_FACE_COUNT];

    PGM_BASE*       m_program;
    int             m_ctl;

    wxFrame*        m_top;      // Usually m_top is the Project manager

    // An array to store the window ID of PLAYER frames which were run.
    // A non empty name means only a PLAYER was run at least one time.
    // Empty entries are represented by wxID_NONE.
    // They can be closed, and the stored window ID may be invalid.
    // Call: wxWindow::FindWindowById( m_playerFrameId[aFrameType] )
    // to know if still exists (or GetPlayerFrame( FRAME_T aFrameType )
    std::atomic<wxWindowID> m_playerFrameId[KIWAY_PLAYER_COUNT];
};


#ifndef SWIG
// provided by single_top.cpp and kicad.cpp;
extern KIWAY Kiway;
// whereas python launchers: single_top.py and project manager instantiate as a python object
#endif


typedef KIFACE* KIFACE_GETTER_FUNC( int* aKIFACEversion, int aKIWAYversion, PGM_BASE* aProgram );


#ifndef SWIG

extern "C" {
#if defined(BUILD_KIWAY_DLL)
 MY_API( KIFACE* ) KIFACE_GETTER(  int* aKIFACEversion, int aKIWAYversion, PGM_BASE* aProgram );
#else
 KIFACE* KIFACE_GETTER(  int* aKIFACEversion, int aKIWAYversion, PGM_BASE* aProgram );
#endif
}

#endif  // SWIG

#endif  // KIWAY_H_