/**
 * @file viewlibs.cpp
 */

#include <fctsys.h>
#include <gr_basic.h>
#include <appl_wxstruct.h>
#include <class_drawpanel.h>
#include <confirm.h>
#include <eda_doc.h>
#include <class_sch_screen.h>

#include <general.h>
#include <protos.h>
#include <viewlib_frame.h>
#include <eeschema_id.h>
#include <class_library.h>
#include <dialog_helpers.h>


#define NEXT_PART      1
#define NEW_PART       0
#define PREVIOUS_PART -1


void LIB_VIEW_FRAME::Process_Special_Functions( wxCommandEvent& event )
{
    wxString   msg;
    LIB_ALIAS* LibEntry;
    int        ii, id = event.GetId();

    switch( id )
    {
    case ID_LIBVIEW_SELECT_LIB:
        SelectCurrentLibrary();
        break;

    case ID_LIBVIEW_SELECT_PART:
        SelectAndViewLibraryPart( NEW_PART );
        break;

    case ID_LIBVIEW_NEXT:
        SelectAndViewLibraryPart( NEXT_PART );
        break;

    case ID_LIBVIEW_PREVIOUS:
        SelectAndViewLibraryPart( PREVIOUS_PART );
        break;

    case ID_LIBVIEW_VIEWDOC:
        LibEntry = CMP_LIBRARY::FindLibraryEntry( m_entryName, m_libraryName );

        if( LibEntry && ( !LibEntry->GetDocFileName().IsEmpty() ) )
            GetAssociatedDocument( this, LibEntry->GetDocFileName(),
                                   &wxGetApp().GetLibraryPathList() );
        break;

    case ID_LIBVIEW_DE_MORGAN_NORMAL_BUTT:
        m_mainToolBar->ToggleTool( ID_LIBVIEW_DE_MORGAN_NORMAL_BUTT, true );
        m_mainToolBar->ToggleTool( ID_LIBVIEW_DE_MORGAN_CONVERT_BUTT, false );
        m_convert = 1;
        m_canvas->Refresh();
        break;

    case ID_LIBVIEW_DE_MORGAN_CONVERT_BUTT:
        m_mainToolBar->ToggleTool( ID_LIBVIEW_DE_MORGAN_NORMAL_BUTT, false );
        m_mainToolBar->ToggleTool( ID_LIBVIEW_DE_MORGAN_CONVERT_BUTT, true );
        m_convert = 2;
        m_canvas->Refresh();
        break;

    case ID_LIBVIEW_SELECT_PART_NUMBER:
        ii = m_selpartBox->GetCurrentSelection();
        if( ii < 0 )
            return;
        m_unit = ii + 1;
        m_canvas->Refresh();
        break;

    default:
        msg << wxT( "LIB_VIEW_FRAME::Process_Special_Functions error: id = " ) << id;
        DisplayError( this, msg );
        break;
    }
}


void LIB_VIEW_FRAME::OnLeftClick( wxDC* DC, const wxPoint& MousePos )
{
}


bool LIB_VIEW_FRAME::OnRightClick( const wxPoint& MousePos, wxMenu* PopMenu )
{
    return true;
}


/* Displays the name of the current opened library in the caption */
void LIB_VIEW_FRAME::DisplayLibInfos()
{
    wxString     msg;
    CMP_LIBRARY* Lib;

    Lib = CMP_LIBRARY::FindLibrary( m_libraryName );
    msg = _( "Library Browser" );

    msg << wxT( " [" );

    if( Lib )
        msg <<  Lib->GetFullFileName();
    else
        msg += _( "no library selected" );

    msg << wxT( "]" );
    SetTitle( msg );
}


/*****************************************/
/* Function to Select Current library      */
/*****************************************/
void LIB_VIEW_FRAME::SelectCurrentLibrary()
{
    CMP_LIBRARY* Lib;

    Lib = SelectLibraryFromList( this );

    if( Lib )
    {
        m_entryName.Empty();
        m_libraryName = Lib->GetName();
        DisplayLibInfos();

        if( m_libList )
        {
            ReCreateListCmp();
            m_canvas->Refresh();
            DisplayLibInfos();
            ReCreateHToolbar();
            int id = m_libList->FindString( m_libraryName.GetData() );

            if( id >= 0 )
                m_libList->SetSelection( id );
        }
    }
}


/*
 * Routine to select and view library Part (NEW, NEXT or PREVIOUS)
 */
void LIB_VIEW_FRAME::SelectAndViewLibraryPart( int option )
{
    CMP_LIBRARY* Lib;

    if( m_libraryName.IsEmpty() )
        SelectCurrentLibrary();
    if( m_libraryName.IsEmpty() )
        return;

    Lib = CMP_LIBRARY::FindLibrary( m_libraryName );

    if( Lib == NULL )
        return;

    if( ( m_entryName.IsEmpty() ) || ( option == NEW_PART ) )
    {
        ViewOneLibraryContent( Lib, NEW_PART );
        return;
    }

    LIB_ALIAS* LibEntry = Lib->FindEntry( m_entryName );

    if( LibEntry == NULL )
        return;

    if( option == NEXT_PART )
        ViewOneLibraryContent( Lib, NEXT_PART );

    if( option == PREVIOUS_PART )
        ViewOneLibraryContent( Lib, PREVIOUS_PART );
}


/*************************************************/
/* Routine to view one selected library content. */
/*************************************************/
void LIB_VIEW_FRAME::ViewOneLibraryContent( CMP_LIBRARY* Lib, int Flag )
{
    int        NumOfParts = 0;
    LIB_ALIAS* LibEntry;
    wxString   CmpName;

    if( Lib )
        NumOfParts = Lib->GetCount();

    if( NumOfParts == 0 )
    {
        DisplayError( this, wxT( "No library or library is empty!" ) );
        return;
    }

    if( Lib == NULL )
        return;

    if( Flag == NEW_PART )
    {
        DisplayComponentsNamesInLib( this, Lib, CmpName, m_entryName );
    }

    if( Flag == NEXT_PART )
    {
        LibEntry = Lib->GetNextEntry( m_entryName );

        if( LibEntry )
            CmpName = LibEntry->GetName();
    }

    if( Flag == PREVIOUS_PART )
    {
        LibEntry = Lib->GetPreviousEntry( m_entryName );

        if( LibEntry )
            CmpName = LibEntry->GetName();
    }

    m_unit    = 1;
    m_convert = 1;

    LibEntry = Lib->FindEntry( CmpName );
    m_entryName = CmpName;
    DisplayLibInfos();
    Zoom_Automatique( false );
    m_canvas->Refresh( );

    if( m_cmpList )
    {
        int id = m_cmpList->FindString( m_entryName.GetData() );
        if( id >= 0 )
            m_cmpList->SetSelection( id );
    }
    ReCreateHToolbar();
}


/**
 * Function RedrawActiveWindow
 * Display the current selected component.
 * If the component is an alias, the ROOT component is displayed
*/
void LIB_VIEW_FRAME::RedrawActiveWindow( wxDC* DC, bool EraseBg )
{
    LIB_COMPONENT* component;
    LIB_ALIAS*     entry;
    CMP_LIBRARY*   lib;
    wxString       msg;
    wxString       tmp;

    lib = CMP_LIBRARY::FindLibrary( m_libraryName );

    if( lib == NULL )
        return;

    entry = lib->FindEntry( m_entryName );

    if( entry == NULL )
        return;

    component = entry->GetComponent();

    m_canvas->DrawBackGround( DC );

    if( !entry->IsRoot() )
    {
        if( component == NULL )     // Should not occur
            return;

        // Temporarily change the name field text to reflect the alias name.
        msg = entry->GetName();
        tmp = component->GetName();
        component->SetName( msg );

        if( m_unit < 1 )
            m_unit = 1;

        if( m_convert < 1 )
            m_convert = 1;
    }
    else
    {
        msg = _( "None" );
    }

    component->Draw( m_canvas, DC, wxPoint( 0, 0 ), m_unit, m_convert, GR_DEFAULT_DRAWMODE );

    /* Redraw the cursor */
    m_canvas->DrawCrossHair( DC );

    if( !tmp.IsEmpty() )
        component->SetName( tmp );

    ClearMsgPanel();
    AppendMsgPanel( _( "Part" ), component->GetName(), BLUE, 6 );
    AppendMsgPanel( _( "Alias" ), msg, RED, 6 );
    AppendMsgPanel( _( "Description" ), entry->GetDescription(), CYAN, 6 );
    AppendMsgPanel( _( "Key words" ), entry->GetKeyWords(), DARKDARKGRAY );
}
