/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.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
 */

#include "dialog_lib_symbol_properties.h"

#include <pgm_base.h>
#include <eeschema_settings.h>
#include <bitmaps.h>
#include <confirm.h>
#include <dialogs/dialog_text_entry.h>
#include <kiway.h>
#include <symbol_edit_frame.h>
#include <lib_symbol_library_manager.h>
#include <math/util.h> // for KiROUND
#include <sch_symbol.h>
#include <kiplatform/ui.h>
#include <widgets/grid_text_button_helpers.h>
#include <widgets/wx_grid.h>
#include <widgets/std_bitmap_button.h>
#include <string_utils.h>
#include <project_sch.h>
#include <refdes_utils.h>
#include <dialog_sim_model.h>
#include <vector>

#include <panel_embedded_files.h>
#include <settings/settings_manager.h>
#include <symbol_editor_settings.h>
#include <widgets/listbox_tricks.h>

#include <wx/clipbrd.h>
#include <wx/msgdlg.h>


int DIALOG_LIB_SYMBOL_PROPERTIES::m_lastOpenedPage = 0;
DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT DIALOG_LIB_SYMBOL_PROPERTIES::m_lastLayout =
        DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT::NONE;


DIALOG_LIB_SYMBOL_PROPERTIES::DIALOG_LIB_SYMBOL_PROPERTIES( SYMBOL_EDIT_FRAME* aParent,
                                                            LIB_SYMBOL* aLibEntry ) :
    DIALOG_LIB_SYMBOL_PROPERTIES_BASE( aParent ),
    m_Parent( aParent ),
    m_libEntry( aLibEntry ),
    m_pinNameOffset( aParent, m_nameOffsetLabel, m_nameOffsetCtrl, m_nameOffsetUnits, true ),
    m_delayedFocusCtrl( nullptr ),
    m_delayedFocusGrid( nullptr ),
    m_delayedFocusRow( -1 ),
    m_delayedFocusColumn( -1 ),
    m_delayedFocusPage( -1 ),
    m_fpFilterTricks( std::make_unique<LISTBOX_TRICKS>( *this, *m_FootprintFilterListBox ) )
{
    std::vector<const EMBEDDED_FILES*> inheritedEmbeddedFiles;

    if( std::shared_ptr<LIB_SYMBOL> parent = m_libEntry->GetParent().lock() )
    {
        while( parent )
        {
            inheritedEmbeddedFiles.push_back( parent->GetEmbeddedFiles() );
            parent = parent->GetParent().lock();
        }
    }

    m_embeddedFiles = new PANEL_EMBEDDED_FILES( m_NoteBook, m_libEntry, 0,
                                                std::move( inheritedEmbeddedFiles ) );
    m_NoteBook->AddPage( m_embeddedFiles, _( "Embedded Files" ) );

    // Give a bit more room for combobox editors
    m_grid->SetDefaultRowSize( m_grid->GetDefaultRowSize() + 4 );
    m_fields = new FIELDS_GRID_TABLE( this, aParent, m_grid, m_libEntry,
                                      { m_embeddedFiles->GetLocalFiles() } );
    m_grid->SetTable( m_fields );
    m_grid->PushEventHandler( new FIELDS_GRID_TRICKS( m_grid, this, { m_embeddedFiles->GetLocalFiles() },
                                                      [&]( wxCommandEvent& aEvent )
                                                      {
                                                          OnAddField( aEvent );
                                                      } ) );
    m_grid->SetSelectionMode( wxGrid::wxGridSelectRows );


    // Show/hide columns according to the user's preference
    SYMBOL_EDITOR_SETTINGS* cfg = m_Parent->GetSettings();
    m_grid->ShowHideColumns( cfg->m_EditSymbolVisibleColumns );

    m_SymbolNameCtrl->SetValidator( FIELD_VALIDATOR( VALUE_FIELD ) );

    // Configure button logos
    m_bpAdd->SetBitmap( KiBitmapBundle( BITMAPS::small_plus ) );
    m_bpDelete->SetBitmap( KiBitmapBundle( BITMAPS::small_trash ) );
    m_bpMoveUp->SetBitmap( KiBitmapBundle( BITMAPS::small_up ) );
    m_bpMoveDown->SetBitmap( KiBitmapBundle( BITMAPS::small_down ) );
    m_addFilterButton->SetBitmap( KiBitmapBundle( BITMAPS::small_plus ) );
    m_deleteFilterButton->SetBitmap( KiBitmapBundle( BITMAPS::small_trash ) );
    m_editFilterButton->SetBitmap( KiBitmapBundle( BITMAPS::small_edit ) );

    SetupStandardButtons();

    if( aParent->IsSymbolFromLegacyLibrary() && !aParent->IsSymbolFromSchematic() )
    {
        m_stdSizerButtonCancel->SetDefault();
        m_stdSizerButtonOK->SetLabel( _( "Read Only" ) );
        m_stdSizerButtonOK->Enable( false );
    }

    // wxFormBuilder doesn't include this event...
    m_grid->Connect( wxEVT_GRID_CELL_CHANGING,
                     wxGridEventHandler( DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanging ), nullptr, this );
    m_grid->Connect( wxEVT_GRID_CELL_CHANGED,
                     wxGridEventHandler( DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanged ), nullptr, this );
    m_grid->GetGridWindow()->Bind( wxEVT_MOTION, &DIALOG_LIB_SYMBOL_PROPERTIES::OnGridMotion, this );


    // Forward the delete button to the tricks
    m_deleteFilterButton->Bind( wxEVT_BUTTON,
                                [&]( wxCommandEvent& aEvent )
                                {
                                    wxCommandEvent cmdEvent( EDA_EVT_LISTBOX_DELETE );
                                    m_fpFilterTricks->ProcessEvent( cmdEvent );
                                } );

    // When the filter tricks modifies something, update ourselves
    m_FootprintFilterListBox->Bind( EDA_EVT_LISTBOX_CHANGED,
                                    [&]( wxCommandEvent& aEvent )
                                    {
                                        OnModify();
                                    } );

    if( m_lastLayout != DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT::NONE )
    {
        if( ( m_lastLayout == DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT::ALIAS
              && aLibEntry->IsRoot() )
            || ( m_lastLayout == DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT::PARENT
                 && aLibEntry->IsAlias() ) )
        {
            resetSize();
        }
    }

    m_lastLayout = ( aLibEntry->IsAlias() ) ? DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT::ALIAS
                                            : DIALOG_LIB_SYMBOL_PROPERTIES::LAST_LAYOUT::PARENT;

    m_grid->GetParent()->Layout();
    syncControlStates( m_libEntry->IsAlias() );
    Layout();

    finishDialogSettings();
}


DIALOG_LIB_SYMBOL_PROPERTIES::~DIALOG_LIB_SYMBOL_PROPERTIES()
{
    m_lastOpenedPage = m_NoteBook->GetSelection( );

    if( SYMBOL_EDITOR_SETTINGS* cfg = m_Parent->GetSettings() )
        cfg->m_EditSymbolVisibleColumns = m_grid->GetShownColumnsAsString();

    // Prevents crash bug in wxGrid's d'tor
    m_grid->DestroyTable( m_fields );

    m_grid->Disconnect( wxEVT_GRID_CELL_CHANGING,
                        wxGridEventHandler( DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanging ), nullptr, this );
    m_grid->Disconnect( wxEVT_GRID_CELL_CHANGED,
                        wxGridEventHandler( DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanged ), nullptr, this );
    m_grid->GetGridWindow()->Unbind( wxEVT_MOTION, &DIALOG_LIB_SYMBOL_PROPERTIES::OnGridMotion, this );

    // Delete the GRID_TRICKS.
    m_grid->PopEventHandler( true );
}


bool DIALOG_LIB_SYMBOL_PROPERTIES::TransferDataToWindow()
{
    if( !wxDialog::TransferDataToWindow() )
        return false;

    // Ensure the fields vector is empty before (re)loading.  Constructor no longer
    // pre-populates fields to avoid double insertion of mandatory fields.
    if( m_fields->size() > 0 )
    {
        // Clear existing entries; we recreate inheritance metadata via push_back()
        // Note: We cannot simply reuse existing entries because alias inheritance
        // state may have changed if the parent was edited prior to dialog open.
        m_fields->clear();
    }

    // Load current symbol fields (mandatory first, then user fields)
    m_libEntry->CopyFields( *m_fields );

    // Handle alias (derived) symbol inherited fields.  We only inherit non-mandatory fields
    // and mark any matching names as inherited rather than duplicating them.
    if( m_libEntry->IsAlias() )
    {
        if( std::shared_ptr<LIB_SYMBOL> parent = m_libEntry->GetParent().lock() )
        {
            std::vector<SCH_FIELD*> parentFields;
            parent->GetFields( parentFields );

            for( SCH_FIELD* pf : parentFields )
            {
                if( pf->IsMandatory() )
                    continue; // Never inherit mandatory fields

                bool found = false;

                for( size_t jj = 0; jj < m_fields->size(); ++jj )
                {
                    SCH_FIELD& f = m_fields->at( jj );

                    if( f.IsMandatory() )
                        continue; // Skip mandatory in child list for inheritance match

                    if( f.GetCanonicalName() == pf->GetCanonicalName() )
                    {
                        m_fields->SetFieldInherited( jj, *pf );
                        found = true;
                        break;
                    }
                }

                if( !found )
                    m_fields->AddInheritedField( *pf );
            }
        }
    }

    // Fields already loaded above; avoid re-copying to prevent duplication.

    std::set<wxString> defined;

    for( SCH_FIELD& field : *m_fields )
        defined.insert( field.GetName() );

    // Add in any template fieldnames not yet defined:
    // Read global fieldname templates
    SETTINGS_MANAGER&  mgr = Pgm().GetSettingsManager();
    EESCHEMA_SETTINGS* cfg = mgr.GetAppSettings<EESCHEMA_SETTINGS>( "eeschema" );

    if( cfg )
    {
        TEMPLATES templateMgr;

        if( !cfg->m_Drawing.field_names.IsEmpty() )
            templateMgr.AddTemplateFieldNames( cfg->m_Drawing.field_names );

        for( const TEMPLATE_FIELDNAME& templateFieldname : templateMgr.GetTemplateFieldNames() )
        {
            if( defined.count( templateFieldname.m_Name ) <= 0 )
            {
                SCH_FIELD field( VECTOR2I( 0, 0 ), -1, m_libEntry, templateFieldname.m_Name );
                field.SetVisible( templateFieldname.m_Visible );
                m_fields->push_back( field );
                m_addedTemplateFields.insert( templateFieldname.m_Name );
            }
        }
    }

    // The Y axis for components in lib is from bottom to top while the screen axis is top
    // to bottom: we must change the y coord sign for editing
    for( size_t i = 0; i < m_fields->size(); ++i )
    {
        VECTOR2I pos = m_fields->at( i ).GetPosition();
        pos.y = -pos.y;
        m_fields->at( i ).SetPosition( pos );
    }

    // notify the grid
    wxGridTableMessage msg( m_fields, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, m_fields->GetNumberRows() );
    m_grid->ProcessTableMessage( msg );
    adjustGridColumns();

    m_SymbolNameCtrl->ChangeValue( UnescapeString( m_libEntry->GetName() ) );

    m_KeywordCtrl->ChangeValue( m_libEntry->GetKeyWords() );
    m_SelNumberOfUnits->SetValue( m_libEntry->GetUnitCount() );
    m_OptionPartsInterchangeable->SetValue( !m_libEntry->UnitsLocked() ||
                                            m_libEntry->GetUnitCount() == 1 );

    // If a symbol contains no body-style-specific pins or graphic items,
    // symbol->HasAlternateBodyStyle() will return false.
    // But when editing a symbol with DeMorgan option set, we don't want to keep turning it off
    // just because there aren't any body-style-specific items yet, so we force it to on if the
    // parent frame has it enabled.
    m_hasAlternateBodyStyles->SetValue( m_Parent->GetShowDeMorgan() );

    m_OptionPower->SetValue( m_libEntry->IsPower() );

    if( m_libEntry->IsPower() )
        m_spiceFieldsButton->Hide();

    m_excludeFromSimCheckBox->SetValue( m_libEntry->GetExcludedFromSim() );
    m_excludeFromBomCheckBox->SetValue( m_libEntry->GetExcludedFromBOM() );
    m_excludeFromBoardCheckBox->SetValue( m_libEntry->GetExcludedFromBoard() );

    m_ShowPinNumButt->SetValue( m_libEntry->GetShowPinNumbers() );
    m_ShowPinNameButt->SetValue( m_libEntry->GetShowPinNames() );
    m_PinsNameInsideButt->SetValue( m_libEntry->GetPinNameOffset() != 0 );
    m_pinNameOffset.ChangeValue( m_libEntry->GetPinNameOffset() );

    wxArrayString tmp = m_libEntry->GetFPFilters();
    m_FootprintFilterListBox->Append( tmp );

    // Populate the list of root parts for inherited objects.
    if( m_libEntry->IsAlias() )
    {
        wxArrayString symbolNames;
        wxString libName = m_Parent->GetCurLib();

        // Someone forgot to set the current library in the editor frame window.
        wxCHECK( !libName.empty(), false );

        m_Parent->GetLibManager().GetSymbolNames( libName, symbolNames );

        // Sort the list of symbols for easier search
        symbolNames.Sort(
                []( const wxString& a, const wxString& b ) -> int
                {
                    return StrNumCmp( a, b, true );
                } );

        // Do allow an inherited symbol to be derived from itself.
        if( symbolNames.Index( m_libEntry->GetName() ) != wxNOT_FOUND )
            symbolNames.Remove( m_libEntry->GetName() );

        m_inheritanceSelectCombo->Append( symbolNames );

        if( std::shared_ptr<LIB_SYMBOL> rootSymbol = m_libEntry->GetParent().lock() )
        {
            wxString parentName = UnescapeString( rootSymbol->GetName() );
            int selection = m_inheritanceSelectCombo->FindString( parentName );

            if( selection == wxNOT_FOUND )
                return false;

            m_inheritanceSelectCombo->SetSelection( selection );
        }

        m_lastOpenedPage = 0;
    }

    m_NoteBook->SetSelection( (unsigned) m_lastOpenedPage );

    m_embeddedFiles->TransferDataToWindow();

    return true;
}


bool DIALOG_LIB_SYMBOL_PROPERTIES::Validate()
{
    if( !m_grid->CommitPendingChanges() )
        return false;

    // Alias symbol reference can be empty because it inherits from the parent symbol.
    if( m_libEntry->IsRoot()
            && UTIL::GetRefDesPrefix( m_fields->at( REFERENCE_FIELD ).GetText() ).IsEmpty() )
    {
        if( m_NoteBook->GetSelection() != 0 )
            m_NoteBook->SetSelection( 0 );

        m_delayedErrorMessage = _( "References must start with a letter." );
        m_delayedFocusGrid = m_grid;
        m_delayedFocusColumn = FDC_VALUE;
        m_delayedFocusRow = REFERENCE_FIELD;
        m_delayedFocusPage = 0;

        return false;
    }

    // Check for missing field names.
    for( int ii = 0; ii < (int) m_fields->size(); ++ii )
    {
        SCH_FIELD& field = m_fields->at( ii );

        if( field.IsMandatory() )
            continue;

        wxString fieldName = field.GetName( false );

        if( fieldName.IsEmpty() && !field.GetText().IsEmpty() )
        {
            if( m_NoteBook->GetSelection() != 0 )
                m_NoteBook->SetSelection( 0 );

            m_delayedErrorMessage = _( "Fields must have a name." );
            m_delayedFocusGrid = m_grid;
            m_delayedFocusColumn = FDC_NAME;
            m_delayedFocusRow = ii;
            m_delayedFocusPage = 0;

            return false;
        }
    }

    // Verify that the parent name is set if the symbol is inherited
    if( m_libEntry->IsAlias() )
    {
        wxString parentName = m_inheritanceSelectCombo->GetValue();

        if( parentName.IsEmpty() )
        {
            m_delayedErrorMessage = _( "Derived symbol must have a parent selected" );

            return false;
        }
    }

    /*
     * Confirm destructive actions.
     */

    if( m_SelNumberOfUnits->GetValue() < m_libEntry->GetUnitCount() )
    {
        if( !IsOK( this, _( "Delete extra units from symbol?" ) ) )
            return false;
    }

    if( !m_hasAlternateBodyStyles->GetValue() && m_libEntry->HasAlternateBodyStyle() )
    {
        if( !IsOK( this, _( "Delete alternate body style (De Morgan) from symbol?" ) ) )
            return false;
    }

    return true;
}


bool DIALOG_LIB_SYMBOL_PROPERTIES::TransferDataFromWindow()
{
    if( !wxDialog::TransferDataFromWindow() )
        return false;

    if( !m_grid->CommitPendingChanges() || !m_embeddedFiles->TransferDataFromWindow() )
        return false;

    wxString   newName = EscapeString( m_SymbolNameCtrl->GetValue(), CTX_LIBID );
    wxString   oldName = m_libEntry->GetName();

    if( newName.IsEmpty() )
    {
        wxMessageBox( _( "Symbol must have a name." ) );
        return false;
    }

    if( oldName != newName )
    {
        wxString libName = m_Parent->GetCurLib();

        if( m_Parent->GetLibManager().SymbolExists( newName, libName ) )
        {
            wxString msg;

            msg.Printf( _( "Symbol name '%s' already in use in library '%s'." ),
                        UnescapeString( newName ),
                        libName );
            DisplayErrorMessage( this, msg );
            return false;
        }

        m_Parent->SaveCopyInUndoList( _( "Edit Symbol Properties" ), m_libEntry,
                                      UNDO_REDO::LIB_RENAME );
    }
    else
    {
        m_Parent->SaveCopyInUndoList( _( "Edit Symbol Properties" ), m_libEntry );
    }

    std::vector<SCH_FIELD> fieldsToSave;

    for( int ii = m_fields->GetNumberRows() - 1; ii >= 0; ii-- )
    {
        SCH_FIELD& field = m_fields->at( ii );

        // The Y axis for components in lib is from bottom to top while the screen axis is top
        // to bottom: we must change the y coord sign when writing back to the library
        VECTOR2I pos = field.GetPosition();
        pos.y = -pos.y;
        field.SetPosition( pos );

        // if( !field.IsMandatory() )
            field.SetId( ii );

        wxString fieldName = field.GetCanonicalName();

        if( m_fields->IsInherited( ii ) && field == m_fields->ParentField( ii ) )
            continue; // Skip inherited fields

        if( field.GetText().IsEmpty() )
        {
            if( fieldName.IsEmpty() || m_addedTemplateFields.contains( fieldName ) )
                continue; // Skip empty fields that are not mandatory or template fields
        }
        else if( fieldName.IsEmpty() )
        {
            field.SetName( _( "untitled" ) ); // Set a default name for unnamed fields
        }

        fieldsToSave.push_back( field );
    }

    m_libEntry->SetFields( fieldsToSave );

    // Update the parent for inherited symbols
    if( m_libEntry->IsAlias() )
    {
        wxString parentName = EscapeString( m_inheritanceSelectCombo->GetValue(), CTX_LIBID );

        // The parentName was verified to be non-empty in the Validator
        wxString libName = m_Parent->GetCurLib();

        // Get the parent from the libManager based on the name set in the inheritance combo box.
        LIB_SYMBOL* newParent = m_Parent->GetLibManager().GetAlias( parentName, libName );

        // Verify that the requested parent exists
        wxCHECK( newParent, false );

        m_libEntry->SetParent( newParent );
    }

    m_libEntry->SetName( newName );
    m_libEntry->SetKeyWords( m_KeywordCtrl->GetValue() );
    m_libEntry->SetUnitCount( m_SelNumberOfUnits->GetValue() );
    m_libEntry->LockUnits( m_libEntry->GetUnitCount() > 1 &&
                           !m_OptionPartsInterchangeable->GetValue() );
    m_libEntry->SetHasAlternateBodyStyle( m_hasAlternateBodyStyles->GetValue() );
    m_Parent->SetShowDeMorgan( m_hasAlternateBodyStyles->GetValue() );

    if( m_OptionPower->GetValue() )
    {
        m_libEntry->SetPower();
        // Power symbols must have value matching name for now
        m_libEntry->GetValueField().SetText( newName );
    }
    else
    {
        m_libEntry->SetNormal();
    }

    m_libEntry->SetExcludedFromSim( m_excludeFromSimCheckBox->GetValue() );
    m_libEntry->SetExcludedFromBOM( m_excludeFromBomCheckBox->GetValue() );
    m_libEntry->SetExcludedFromBoard( m_excludeFromBoardCheckBox->GetValue() );

    m_libEntry->SetShowPinNumbers( m_ShowPinNumButt->GetValue() );
    m_libEntry->SetShowPinNames( m_ShowPinNameButt->GetValue() );

    if( m_PinsNameInsideButt->GetValue() )
    {
        int offset = KiROUND( (double) m_pinNameOffset.GetValue() );

        // We interpret an offset of 0 as "outside", so make sure it's non-zero
        m_libEntry->SetPinNameOffset( offset == 0 ? 20 : offset );
    }
    else
    {
        m_libEntry->SetPinNameOffset( 0 );   // pin text outside the body (name is on the pin)
    }

    m_libEntry->SetFPFilters( m_FootprintFilterListBox->GetStrings());

    m_Parent->UpdateAfterSymbolProperties( &oldName );

    // It's possible that the symbol being edited has no pins, in which case there may be no
    // alternate body style objects causing #LIB_SYMBOL::HasAlternateBodyStyle() to always return
    // false.  This allows the user to edit the alternate body style just in case this condition
    // occurs.
    m_Parent->SetShowDeMorgan( m_hasAlternateBodyStyles->GetValue() );

    return true;
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnGridMotion( wxMouseEvent& aEvent )
{
    aEvent.Skip();

    wxPoint pos = aEvent.GetPosition();
    wxPoint unscolled_pos = m_grid->CalcUnscrolledPosition( pos );
    int row = m_grid->YToRow( unscolled_pos.y );
    int col = m_grid->XToCol( unscolled_pos.x );

    if( row == wxNOT_FOUND || col == wxNOT_FOUND || !m_fields->IsInherited( row ) )
    {
        m_grid->SetToolTip( "" );
        return;
    }

    m_grid->SetToolTip(
            wxString::Format( _( "This field is inherited from '%s'." ),
                              m_fields->ParentField( row ).GetName() ) );
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanging( wxGridEvent& event )
{
    wxGridCellEditor* editor = m_grid->GetCellEditor( event.GetRow(), event.GetCol() );
    wxControl* control = editor->GetControl();

    if( control && control->GetValidator() && !control->GetValidator()->Validate( control ) )
    {
        event.Veto();

        m_delayedFocusGrid = m_grid;
        m_delayedFocusRow = event.GetRow();
        m_delayedFocusColumn = event.GetCol();
        m_delayedFocusPage = 0;
    }
    else if( event.GetCol() == FDC_NAME )
    {
        wxString newName = event.GetString();

        for( int i = 0; i < m_grid->GetNumberRows(); ++i )
        {
            if( i == event.GetRow() )
                continue;

            if( newName.CmpNoCase( m_grid->GetCellValue( i, FDC_NAME ) ) == 0 )
            {
                DisplayError( this, wxString::Format( _( "The name '%s' is already in use." ),
                                                      newName ) );
                event.Veto();
                m_delayedFocusRow = event.GetRow();
                m_delayedFocusColumn = event.GetCol();
            }
        }
    }

    editor->DecRef();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanged( wxGridEvent& event )
{
    m_grid->ForceRefresh();
    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnSymbolNameText( wxCommandEvent& event )
{
    if( m_OptionPower->IsChecked() )
        m_grid->SetCellValue( VALUE_FIELD, FDC_VALUE, m_SymbolNameCtrl->GetValue() );

    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnSymbolNameKillFocus( wxFocusEvent& event )
{
    if( !m_delayedFocusCtrl )
    {
        // If the validation fails and we throw up a dialog then GTK will give us another
        // KillFocus event and we end up in infinite recursion.  So we use m_delayedFocusCtrl
        // as a re-entrancy block and then clear it again if validation passes.
        m_delayedFocusCtrl = m_SymbolNameCtrl;
        m_delayedFocusPage = 0;

        if( m_SymbolNameCtrl->GetValidator()->Validate( m_SymbolNameCtrl ) )
        {
            m_delayedFocusCtrl = nullptr;
            m_delayedFocusPage = -1;
        }
    }

    event.Skip();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnAddField( wxCommandEvent& event )
{
    if( !m_grid->CommitPendingChanges() )
        return;

    SYMBOL_EDITOR_SETTINGS* settings = m_Parent->GetSettings();
    int       fieldID = (int) m_fields->size();
    SCH_FIELD newField( m_libEntry, fieldID );

    newField.SetTextSize( VECTOR2I( schIUScale.MilsToIU( settings->m_Defaults.text_size ),
                                    schIUScale.MilsToIU( settings->m_Defaults.text_size ) ) );
    newField.SetVisible( false );

    m_fields->push_back( newField );

    // notify the grid
    wxGridTableMessage msg( m_fields, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, 1 );
    m_grid->ProcessTableMessage( msg );

    m_grid->MakeCellVisible( (int) m_fields->size() - 1, 0 );
    m_grid->SetGridCursor( (int) m_fields->size() - 1, 0 );

    m_grid->EnableCellEditControl();
    m_grid->ShowCellEditControl();

    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnDeleteField( wxCommandEvent& event )
{
    wxArrayInt selectedRows = m_grid->GetSelectedRows();

    if( selectedRows.empty() && m_grid->GetGridCursorRow() >= 0 )
        selectedRows.push_back( m_grid->GetGridCursorRow() );

    if( selectedRows.empty() )
        return;

    for( int row : selectedRows )
    {
        if( row < m_fields->GetMandatoryRowCount() )
        {
            DisplayError( this, wxString::Format( _( "The first %d fields are mandatory." ),
                                                  m_fields->GetMandatoryRowCount() ) );
            return;
        }
    }

    m_grid->CommitPendingChanges( true /* quiet mode */ );

    // Reverse sort so deleting a row doesn't change the indexes of the other rows.
    selectedRows.Sort( []( int* first, int* second ) { return *second - *first; } );

    for( int row : selectedRows )
    {
        m_grid->ClearSelection();
        m_fields->erase( m_fields->begin() + row );

        // notify the grid
        wxGridTableMessage msg( m_fields, wxGRIDTABLE_NOTIFY_ROWS_DELETED, row, 1 );
        m_grid->ProcessTableMessage( msg );

        if( m_grid->GetNumberRows() > 0 )
        {
            m_grid->MakeCellVisible( std::max( 0, row-1 ), m_grid->GetGridCursorCol() );
            m_grid->SetGridCursor( std::max( 0, row-1 ), m_grid->GetGridCursorCol() );
        }
    }

    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnMoveUp( wxCommandEvent& event )
{
    if( !m_grid->CommitPendingChanges() )
        return;

    int i = m_grid->GetGridCursorRow();

    if( i > m_fields->GetMandatoryRowCount() )
    {
        SCH_FIELD tmp = m_fields->at( (unsigned) i );
        m_fields->erase( m_fields->begin() + i, m_fields->begin() + i + 1 );
        m_fields->insert( m_fields->begin() + i - 1, tmp );
        m_grid->ForceRefresh();

        m_grid->SetGridCursor( i - 1, m_grid->GetGridCursorCol() );
        m_grid->MakeCellVisible( m_grid->GetGridCursorRow(), m_grid->GetGridCursorCol() );

        OnModify();
    }
    else
    {
        wxBell();
    }
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnMoveDown( wxCommandEvent& event )
{
    if( !m_grid->CommitPendingChanges() )
        return;

    int i = m_grid->GetGridCursorRow();

    if( i >= m_fields->GetMandatoryRowCount() && i + 1 < m_fields->GetNumberRows() )
    {
        SCH_FIELD tmp = m_fields->at( (unsigned) i );
        m_fields->erase( m_fields->begin() + i, m_fields->begin() + i + 1 );
        m_fields->insert( m_fields->begin() + i + 1, tmp );
        m_grid->ForceRefresh();

        m_grid->SetGridCursor( i + 1, m_grid->GetGridCursorCol() );
        m_grid->MakeCellVisible( m_grid->GetGridCursorRow(), m_grid->GetGridCursorCol() );

        OnModify();
    }
    else
    {
        wxBell();
    }
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnEditSpiceModel( wxCommandEvent& event )
{
    if( !m_grid->CommitPendingChanges() )
        return;

    m_grid->ClearSelection();

    std::vector<SCH_FIELD> fields;

    for( const SCH_FIELD& field : *m_fields )
        fields.emplace_back( field );

    DIALOG_SIM_MODEL dialog( this, m_parentFrame, *m_libEntry, fields );

    if( dialog.ShowModal() != wxID_OK )
        return;

    // Add in any new fields
    for( const SCH_FIELD& editedField : fields )
    {
        bool found = false;

        for( SCH_FIELD& existingField : *m_fields )
        {
            if( existingField.GetName() == editedField.GetName() )
            {
                found = true;
                existingField.SetText( editedField.GetText() );
                break;
            }
        }

        if( !found )
        {
            m_fields->emplace_back( editedField );
            wxGridTableMessage msg( m_fields, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, 1 );
            m_grid->ProcessTableMessage( msg );
        }
    }

    // Remove any deleted fields
    for( int ii = (int) m_fields->size() - 1; ii >= 0; --ii )
    {
        SCH_FIELD& existingField = m_fields->at( ii );
        bool       found = false;

        for( SCH_FIELD& editedField : fields )
        {
            if( editedField.GetName() == existingField.GetName() )
            {
                found = true;
                break;
            }
        }

        if( !found )
        {
            m_grid->ClearSelection();
            m_fields->erase( m_fields->begin() + ii );

            wxGridTableMessage msg( m_fields, wxGRIDTABLE_NOTIFY_ROWS_DELETED, ii, 1 );
            m_grid->ProcessTableMessage( msg );
        }
    }

    OnModify();
    m_grid->ForceRefresh();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnFpFilterDClick( wxMouseEvent& event )
{
    int            idx = m_FootprintFilterListBox->HitTest( event.GetPosition() );
    wxCommandEvent dummy;

    if( idx >= 0 )
        OnEditFootprintFilter( dummy );
    else
        OnAddFootprintFilter( dummy );
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnCancelButtonClick( wxCommandEvent& event )
{
    // Running the Footprint Browser gums up the works and causes the automatic cancel
    // stuff to no longer work.  So we do it here ourselves.
    EndQuasiModal( wxID_CANCEL );
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnAddFootprintFilter( wxCommandEvent& event )
{
    wxString  filterLine;
    WX_TEXT_ENTRY_DIALOG dlg( this, _( "Filter:" ), _( "Add Footprint Filter" ), filterLine );

    if( dlg.ShowModal() == wxID_CANCEL || dlg.GetValue().IsEmpty() )
        return;

    filterLine = dlg.GetValue();
    filterLine.Replace( wxT( " " ), wxT( "_" ) );

    // duplicate filters do no harm, so don't be a nanny.
    m_FootprintFilterListBox->Append( filterLine );
    m_FootprintFilterListBox->SetSelection( (int) m_FootprintFilterListBox->GetCount() - 1 );

    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnEditFootprintFilter( wxCommandEvent& event )
{
    wxArrayInt selections;
    int n = m_FootprintFilterListBox->GetSelections( selections );

    if( n > 0 )
    {
        // Just edit the first one
        int idx = selections[0];
        wxString filter = m_FootprintFilterListBox->GetString( idx );

        WX_TEXT_ENTRY_DIALOG dlg( this, _( "Filter:" ), _( "Edit Footprint Filter" ), filter );

        if( dlg.ShowModal() == wxID_OK && !dlg.GetValue().IsEmpty() )
        {
            m_FootprintFilterListBox->SetString( (unsigned) idx, dlg.GetValue() );
            OnModify();
        }
    }
}


void DIALOG_LIB_SYMBOL_PROPERTIES::adjustGridColumns()
{
    // Account for scroll bars
    int width = KIPLATFORM::UI::GetUnobscuredSize( m_grid ).x;

    m_grid->AutoSizeColumn( FDC_NAME );
    m_grid->SetColSize( FDC_NAME, std::max( 72, m_grid->GetColSize( FDC_NAME ) ) );

    int fixedColsWidth = m_grid->GetColSize( FDC_NAME );

    for( int i = 2; i < m_grid->GetNumberCols(); i++ )
        fixedColsWidth += m_grid->GetColSize( i );

    m_grid->SetColSize( FDC_VALUE, std::max( 120, width - fixedColsWidth ) );
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnUpdateUI( wxUpdateUIEvent& event )
{
    m_OptionPartsInterchangeable->Enable( m_SelNumberOfUnits->GetValue() > 1 );
    m_pinNameOffset.Enable( m_PinsNameInsideButt->GetValue() );

    if( m_grid->IsCellEditControlShown() )
    {
        int row = m_grid->GetGridCursorRow();
        int col = m_grid->GetGridCursorCol();

        if( row == VALUE_FIELD && col == FDC_VALUE && m_OptionPower->IsChecked() )
        {
            wxGridCellEditor* editor = m_grid->GetCellEditor( row, col );
            m_SymbolNameCtrl->ChangeValue( editor->GetValue() );
            editor->DecRef();
        }
    }

    // Handle shown columns changes
    std::bitset<64> shownColumns = m_grid->GetShownColumns();

    if( shownColumns != m_shownColumns )
    {
        m_shownColumns = shownColumns;

        if( !m_grid->IsCellEditControlShown() )
            adjustGridColumns();
    }

    // Handle a delayed focus.  The delay allows us to:
    // a) change focus when the error was triggered from within a killFocus handler
    // b) show the correct notebook page in the background before the error dialog comes up
    //    when triggered from an OK or a notebook page change

    if( m_delayedFocusPage >= 0 && m_NoteBook->GetSelection() != m_delayedFocusPage )
    {
        m_NoteBook->ChangeSelection( (unsigned) m_delayedFocusPage );
        m_delayedFocusPage = -1;
    }

    if( !m_delayedErrorMessage.IsEmpty() )
    {
        // We will re-enter this routine when the error dialog is displayed, so make
        // sure we don't keep putting up more dialogs.
        wxString msg = m_delayedErrorMessage;
        m_delayedErrorMessage = wxEmptyString;

        // Do not use DisplayErrorMessage(); it screws up window order on Mac
        DisplayError( nullptr, msg );
    }

    if( m_delayedFocusCtrl )
    {
        m_delayedFocusCtrl->SetFocus();

        if( auto textEntry = dynamic_cast<wxTextEntry*>( m_delayedFocusCtrl ) )
            textEntry->SelectAll();

        m_delayedFocusCtrl = nullptr;
    }
    else if( m_delayedFocusGrid )
    {
        m_delayedFocusGrid->SetFocus();
        m_delayedFocusGrid->MakeCellVisible( m_delayedFocusRow, m_delayedFocusColumn );
        m_delayedFocusGrid->SetGridCursor( m_delayedFocusRow, m_delayedFocusColumn );

        m_delayedFocusGrid->EnableCellEditControl( true );
        m_delayedFocusGrid->ShowCellEditControl();

        m_delayedFocusGrid = nullptr;
        m_delayedFocusRow = -1;
        m_delayedFocusColumn = -1;
    }
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnSizeGrid( wxSizeEvent& event )
{
    auto new_size = event.GetSize();

    if( new_size != m_size )
    {
        m_size = new_size;

        adjustGridColumns();
    }

    // Always propagate a wxSizeEvent:
    event.Skip();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::syncControlStates( bool aIsAlias )
{
    bSizerLowerBasicPanel->Show( !aIsAlias );
    m_inheritanceSelectCombo->Enable( aIsAlias );
    m_inheritsStaticText->Enable( aIsAlias );
    m_grid->ForceRefresh();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::onPowerCheckBox( wxCommandEvent& aEvent )
{
    if( m_OptionPower->IsChecked() )
    {
        m_excludeFromSimCheckBox->SetValue( true );
        m_excludeFromBomCheckBox->SetValue( true );
        m_excludeFromBoardCheckBox->SetValue( true );
        m_excludeFromBomCheckBox->Enable( false );
        m_excludeFromBoardCheckBox->Enable( false );
        m_excludeFromSimCheckBox->Enable( false );
        m_spiceFieldsButton->Show( false );
    }
    else
    {
        m_excludeFromBomCheckBox->Enable( true );
        m_excludeFromBoardCheckBox->Enable( true );
        m_excludeFromSimCheckBox->Enable( true );
        m_spiceFieldsButton->Show( true );
    }

    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnText( wxCommandEvent& event )
{
    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnCombobox( wxCommandEvent& event )
{
    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnCheckBox( wxCommandEvent& event )
{
    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnSpinCtrl( wxSpinEvent& event )
{
    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnSpinCtrlText( wxCommandEvent& event )
{
    OnModify();
}


void DIALOG_LIB_SYMBOL_PROPERTIES::OnPageChanging( wxBookCtrlEvent& aEvent )
{
    if( !m_grid->CommitPendingChanges() )
        aEvent.Veto();
}