/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015 CERN
 * @author Maciej Suminski <maciej.suminski@cern.ch>
 * Copyright (C) 2015-2020 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 <tool/grid_menu.h>
#include <id.h>
#include <eda_draw_frame.h>
#include <base_screen.h>
#include <settings/app_settings.h>
#include <tool/actions.h>
#include <bitmaps.h>
#include <base_units.h>

using namespace std::placeholders;

GRID_MENU::GRID_MENU( EDA_DRAW_FRAME* aParent ) :
        ACTION_MENU( true ),
        m_parent( aParent )
{
    SetTitle( _( "Grid" ) );
    SetIcon( grid_select_xpm );

    APP_SETTINGS_BASE* settings = m_parent->config();
    wxArrayString      gridsList;
    int                i = 0;

    BuildChoiceList( &gridsList, settings, m_parent->GetUserUnits() != EDA_UNITS::INCHES );

    for( const wxString& grid : gridsList )
        Append( i++, grid, wxEmptyString, wxITEM_CHECK );
}


OPT_TOOL_EVENT GRID_MENU::eventHandler( const wxMenuEvent& aEvent )
{
    OPT_TOOL_EVENT event( ACTIONS::gridPreset.MakeEvent() );
    event->SetParameter( (intptr_t) aEvent.GetId() );
    return event;
}


void GRID_MENU::update()
{
    APP_SETTINGS_BASE* settings = m_parent->config();
    unsigned int       current = settings->m_Window.grid.last_size_idx;
    wxArrayString      gridsList;

    BuildChoiceList( &gridsList, settings, m_parent->GetUserUnits() != EDA_UNITS::INCHES );

    for( unsigned int i = 0; i < GetMenuItemCount(); ++i )
    {
        wxMenuItem* menuItem = FindItemByPosition( i );

        menuItem->SetItemLabel( gridsList[ i ] );  // Refresh label in case units have changed
        menuItem->Check( i == current );           // Refresh checkmark
    }
}


void GRID_MENU::BuildChoiceList( wxArrayString* aGridsList, APP_SETTINGS_BASE* aCfg, bool mmFirst )
{
    wxString msg;

    for( const wxString& gridSize : aCfg->m_Window.grid.sizes )
    {
        int val = (int) ValueFromString( EDA_UNITS::MILLIMETRES, gridSize, true );
        double gridValueMils = To_User_Unit( EDA_UNITS::INCHES, val ) * 1000;
        double gridValue_mm = To_User_Unit( EDA_UNITS::MILLIMETRES, val );

        if( mmFirst )
            msg.Printf( _( "Grid: %.4f mm (%.2f mils)" ), gridValue_mm, gridValueMils );
        else
            msg.Printf( _( "Grid: %.2f mils (%.4f mm)" ), gridValueMils, gridValue_mm );

        aGridsList->Add( msg );
    }


    if( !aCfg->m_Window.grid.user_grid_x.empty() )
    {
        int val = (int) ValueFromString( EDA_UNITS::INCHES, aCfg->m_Window.grid.user_grid_x, true );
        double gridValueMils = To_User_Unit( EDA_UNITS::INCHES, val ) * 1000;
        double gridValue_mm = To_User_Unit( EDA_UNITS::MILLIMETRES, val );

        if( mmFirst )
            msg.Printf( _( "User grid: %.4f mm (%.2f mils)" ), gridValue_mm, gridValueMils );
        else
            msg.Printf( _( "User grid: %.2f mils (%.4f mm)" ), gridValueMils, gridValue_mm );

        aGridsList->Add( msg );
    }
}