/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 1994 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
 * Copyright (C) 1992-2011 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
 */

/**
 * @file gerbview_frame.cpp
 */

#include <fctsys.h>
#include <appl_wxstruct.h>
#include <wxstruct.h>
#include <class_drawpanel.h>
#include <build_version.h>
#include <macros.h>
#include <base_units.h>
#include <class_layer_box_selector.h>

#include <gerbview.h>
#include <class_gerber_draw_item.h>
#include <pcbplot.h>
#include <gerbview_id.h>
#include <hotkeys.h>
#include <class_GERBER.h>
#include <dialog_helpers.h>
#include <class_DCodeSelectionbox.h>
#include <class_gerbview_layer_widget.h>
#include <class_gbr_screen.h>



// Config keywords
static const wxString cfgShowPageSizeOption( wxT( "ShowPageSizeOpt" ) );
static const wxString cfgShowDCodes( wxT( "ShowDCodesOpt" ) );
static const wxString cfgShowBorderAndTitleBlock( wxT( "ShowBorderAndTitleBlock" ) );


/*************************************/
/* class GERBVIEW_FRAME for GerbView */
/*************************************/


GERBVIEW_FRAME::GERBVIEW_FRAME( wxWindow*       father,
                                const wxString& title,
                                const wxPoint&  pos,
                                const wxSize&   size,
                                long            style ) :
    PCB_BASE_FRAME( father, GERBER_FRAME, title, pos, size, style )
{
    m_FrameName = wxT( "GerberFrame" );
    m_show_layer_manager_tools = true;

    m_showAxis = true;                      // true to show X and Y axis on screen
    m_showBorderAndTitleBlock = false;      // true for reference drawings.
    m_HotkeysZoomAndGridList = s_Gerbview_Hokeys_Descr;
    m_SelLayerBox   = NULL;
    m_DCodeSelector = NULL;
    m_displayMode   = 0;
    m_drillFileHistory.SetBaseId( ID_GERBVIEW_DRILL_FILE1 );

    if( m_canvas )
        m_canvas->SetEnableBlockCommands( true );

    // Give an icon
    wxIcon icon;
    icon.CopyFromBitmap( KiBitmap( icon_gerbview_xpm ) );
    SetIcon( icon );

    SetBoard( new BOARD() );

    GetBoard()->SetEnabledLayers( FULL_LAYERS );     // All 32 layers enabled at first.
    GetBoard()->SetVisibleLayers( FULL_LAYERS );     // All 32 layers visible.

    // BOARD was constructed with "A3", change to "GERBER"
    PAGE_INFO   pageInfo( wxT( "GERBER" ) );
    GetBoard()->SetPageSettings( pageInfo );

    SetScreen( new GBR_SCREEN( pageInfo.GetSizeIU() ) );

   // Create the PCB_LAYER_WIDGET *after* SetBoard():
    wxFont font = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
    int    pointSize    = font.GetPointSize();
    int    screenHeight = wxSystemSettings::GetMetric( wxSYS_SCREEN_Y );

    if( screenHeight <= 900 )
        pointSize = (pointSize * 8) / 10;

    m_LayersManager = new GERBER_LAYER_WIDGET( this, m_canvas, pointSize );

    // LoadSettings() *after* creating m_LayersManager, because LoadSettings()
    // initialize parameters in m_LayersManager
    LoadSettings();
    SetSize( m_FramePos.x, m_FramePos.y, m_FrameSize.x, m_FrameSize.y );
    GetScreen()->SetGrid( ID_POPUP_GRID_LEVEL_1000 + m_LastGridSizeId  );

    ReCreateMenuBar();
    ReCreateHToolbar();
    ReCreateOptToolbar();

    m_auimgr.SetManagedWindow( this );

    EDA_PANEINFO horiz;
    horiz.HorizontalToolbarPane();

    EDA_PANEINFO vert;
    vert.VerticalToolbarPane();

    EDA_PANEINFO mesg;
    mesg.MessageToolbarPane();

    EDA_PANEINFO   lyrs;
    lyrs.LayersToolbarPane();
    lyrs.MinSize( m_LayersManager->GetBestSize() );
    lyrs.BestSize( m_LayersManager->GetBestSize() );
    lyrs.Caption( _( "Visibles" ) );


    if( m_mainToolBar )
        m_auimgr.AddPane( m_mainToolBar,
                          wxAuiPaneInfo( horiz ).Name( wxT( "m_mainToolBar" ) ).Top().Row( 0 ) );

    if( m_drawToolBar )
        m_auimgr.AddPane( m_drawToolBar,
                          wxAuiPaneInfo( vert ).Name( wxT( "m_drawToolBar" ) ).Right().Row( 1 ) );

    m_auimgr.AddPane( m_LayersManager,
                      lyrs.Name( wxT( "m_LayersManagerToolBar" ) ).Right().Layer( 0 ) );

    if( m_optionsToolBar )
        m_auimgr.AddPane( m_optionsToolBar,
                          wxAuiPaneInfo( vert ).Name( wxT( "m_optionsToolBar" ) ).Left() );

    if( m_canvas )
        m_auimgr.AddPane( m_canvas,
                          wxAuiPaneInfo().Name( wxT( "DrawFrame" ) ).CentrePane() );

    if( m_messagePanel )
        m_auimgr.AddPane( m_messagePanel,
                          wxAuiPaneInfo( mesg ).Name( wxT( "MsgPanel" ) ).Bottom().Layer(10) );

    ReFillLayerWidget();                // this is near end because contents establish size
    m_LayersManager->ReFillRender();    // Update colors in Render after the config is read
    m_auimgr.Update();
}


GERBVIEW_FRAME::~GERBVIEW_FRAME()
{
    wxGetApp().SaveCurrentSetupValues( m_configSettings );
}


void GERBVIEW_FRAME::OnCloseWindow( wxCloseEvent& Event )
{
    SaveSettings();
    Destroy();
}


double GERBVIEW_FRAME::BestZoom()
{
    // gives a minimal value to zoom, if no item in list
    if( GetBoard()->m_Drawings == NULL  )
        return ZOOM_FACTOR( 160.0 );

    EDA_RECT    bbox;
    BOARD_ITEM* item = GetBoard()->m_Drawings;

    bbox = ( (GERBER_DRAW_ITEM*) item )->GetBoundingBox();

    for( ; item; item = item->Next() )
    {
        GERBER_DRAW_ITEM* gerb_item = (GERBER_DRAW_ITEM*) item;
        bbox.Merge( gerb_item->GetBoundingBox() );
    }

    wxSize size = m_canvas->GetClientSize();

    double x = (double) bbox.GetWidth() / (double) size.x;
    double y = (double) bbox.GetHeight() / (double) size.y;
    GetScreen()->SetScrollCenterPosition( bbox.Centre() );

    double best_zoom = MAX( x, y );
    return best_zoom;
}


void GERBVIEW_FRAME::LoadSettings()
{
    wxConfig* config = wxGetApp().GetSettings();

    if( config == NULL )
        return;

//    PCB_BASE_FRAME::LoadSettings();
    EDA_DRAW_FRAME::LoadSettings();

    wxGetApp().ReadCurrentSetupValues( GetConfigurationSettings() );

    PAGE_INFO   pageInfo( wxT( "GERBER" ) );

    config->Read( cfgShowBorderAndTitleBlock, &m_showBorderAndTitleBlock, false );

    if( m_showBorderAndTitleBlock )
    {
        wxString    pageType;

        config->Read( cfgShowPageSizeOption, &pageType, wxT( "GERBER" ) );

        pageInfo.SetType( pageType );
    }

    SetPageSettings( pageInfo );

    GetScreen()->InitDataPoints( pageInfo.GetSizeIU() );

    long tmp;
    config->Read( cfgShowDCodes, &tmp, 1 );
    SetElementVisibility( DCODES_VISIBLE, tmp );

    // because we have 2 file historues, we must read this one
    // using a specific path
    config->SetPath( wxT("drl_files") );
    m_drillFileHistory.Load( *config );
    config->SetPath( wxT("..") );

    // WxWidgets 2.9.1 seems call setlocale( LC_NUMERIC, "" )
    // when reading doubles in config,
    // but forget to back to current locale. So we call SetLocaleTo_Default
    SetLocaleTo_Default( );
}


void GERBVIEW_FRAME::SaveSettings()
{
    wxConfig* config = wxGetApp().GetSettings();

    if( config == NULL )
        return;

//    PCB_BASE_FRAME::SaveSettings();
    EDA_DRAW_FRAME::SaveSettings();

    wxGetApp().SaveCurrentSetupValues( GetConfigurationSettings() );

    config->Write( cfgShowPageSizeOption, GetPageSettings().GetType() );
    config->Write( cfgShowBorderAndTitleBlock, m_showBorderAndTitleBlock );
    config->Write( cfgShowDCodes, IsElementVisible( DCODES_VISIBLE ) );

    // Save the drill file history list.
    // Because we have 2 file histories, we must save this one
    // in a specific path
    config->SetPath(wxT("drl_files") );
    m_drillFileHistory.Save( *config );
    config->SetPath( wxT("..") );
}


void GERBVIEW_FRAME::ReFillLayerWidget()
{
    m_LayersManager->ReFill();

    wxAuiPaneInfo& lyrs = m_auimgr.GetPane( m_LayersManager );

    wxSize         bestz = m_LayersManager->GetBestSize();

    lyrs.MinSize( bestz );
    lyrs.BestSize( bestz );
    lyrs.FloatingSize( bestz );

    if( lyrs.IsDocked() )
        m_auimgr.Update();
    else
        m_LayersManager->SetSize( bestz );

    syncLayerWidget();
}


/**
 * Function IsGridVisible() , virtual
 * @return true if the grid must be shown
 */
bool GERBVIEW_FRAME::IsGridVisible()
{
    return IsElementVisible( GERBER_GRID_VISIBLE );
}


/**
 * Function SetGridVisibility() , virtual
 * It may be overloaded by derived classes
 * if you want to store/retrieve the grid visiblity in configuration.
 * @param aVisible = true if the grid must be shown
 */
void GERBVIEW_FRAME::SetGridVisibility( bool aVisible )
{
    SetElementVisibility( GERBER_GRID_VISIBLE, aVisible );
}


/**
 * Function GetGridColor() , virtual
 * @return the color of the grid
 */
int GERBVIEW_FRAME::GetGridColor()
{
    return GetBoard()->GetVisibleElementColor( GERBER_GRID_VISIBLE );
}


/**
 * Function SetGridColor() , virtual
 * @param aColor = the new color of the grid
 */
void GERBVIEW_FRAME::SetGridColor( int aColor )
{
    GetBoard()->SetVisibleElementColor( GERBER_GRID_VISIBLE, aColor );
}


/**
 * Function SetElementVisibility
 * changes the visibility of an element category
 * @param aGERBER_VISIBLE is from the enum by the same name
 * @param aNewState = The new visibility state of the element category
 * @see enum aGERBER_VISIBLE
 */
void GERBVIEW_FRAME::SetElementVisibility( int aGERBER_VISIBLE, bool aNewState )
{
    GetBoard()->SetElementVisibility( aGERBER_VISIBLE, aNewState );
    m_LayersManager->SetRenderState( aGERBER_VISIBLE, aNewState );
}


int GERBVIEW_FRAME::getNextAvailableLayer( int aLayer ) const
{
    int layer = aLayer;

    for( int i = 0;  i < LAYER_COUNT;  i++ )
    {
        GERBER_IMAGE* gerber = g_GERBER_List[ layer ];

        if( gerber == NULL || gerber->m_FileName.IsEmpty() )
            return layer;

        layer++;

        if( layer >= LAYER_COUNT )
            layer = 0;
    }

    return NO_AVAILABLE_LAYERS;
}


void GERBVIEW_FRAME::syncLayerWidget()
{
    m_LayersManager->SelectLayer( getActiveLayer() );
    UpdateTitleAndInfo();
}


/**
 * Function syncLayerBox
 * updates the currently "selected" layer within m_SelLayerBox
 * The currently active layer, as defined by the return value of
 * getActiveLayer().  And updates the colored icon in the toolbar.
 */
void GERBVIEW_FRAME::syncLayerBox()
{
    m_SelLayerBox->SetSelection( getActiveLayer() );
    int dcodeSelected = -1;
    GERBER_IMAGE* gerber = g_GERBER_List[getActiveLayer()];

    if( gerber )
        dcodeSelected = gerber->m_Selected_Tool;

    if( m_DCodeSelector )
    {
        m_DCodeSelector->SetDCodeSelection( dcodeSelected );
        m_DCodeSelector->Enable( gerber != NULL );
    }

    UpdateTitleAndInfo();
}


void GERBVIEW_FRAME::Liste_D_Codes()
{
    int ii, jj;
    D_CODE*           pt_D_code;
    wxString          Line;
    wxArrayString     list;
    double            scale = MILS_TO_IU_SCALING_FACTOR * 1000;
    int               curr_layer = getActiveLayer();

    for( int layer = 0; layer < 32; layer++ )
    {
        GERBER_IMAGE* gerber = g_GERBER_List[layer];

        if( gerber == NULL )
            continue;

        if( gerber->ReturnUsedDcodeNumber() == 0 )
            continue;

        if( layer == curr_layer )
            Line.Printf( wxT( "*** Active layer (%2.2d) ***" ), layer + 1 );
        else
            Line.Printf( wxT( "*** layer %2.2d  ***" ), layer + 1 );

        list.Add( Line );

        for( ii = 0, jj = 1; ii < TOOLS_MAX_COUNT; ii++ )
        {
            pt_D_code = gerber->GetDCODE( ii + FIRST_DCODE, false );

            if( pt_D_code == NULL )
                continue;

            if( !pt_D_code->m_InUse && !pt_D_code->m_Defined )
                continue;

            Line.Printf( wxT( "tool %2.2d:   D%2.2d  V %2.4f  H %2.4f  %s" ),
                         jj,
                         pt_D_code->m_Num_Dcode,
                         (float) pt_D_code->m_Size.y / scale,
                         (float) pt_D_code->m_Size.x / scale,
                         D_CODE::ShowApertureType( pt_D_code->m_Shape )
                         );

            if( !pt_D_code->m_Defined )
                Line += wxT( " ?" );

            if( !pt_D_code->m_InUse )
                Line += wxT( " *" );

            list.Add( Line );
            jj++;
        }
    }

#if wxCHECK_VERSION( 2, 9, 4 )
    wxSingleChoiceDialog dlg( this, wxEmptyString, _( "D Codes" ), list, (void**)NULL,
                              wxCHOICEDLG_STYLE & ~wxCANCEL );
#else
    wxSingleChoiceDialog dlg( this, wxEmptyString, _( "D Codes" ), list, (char**)NULL,
                              wxCHOICEDLG_STYLE & ~wxCANCEL );
#endif

    dlg.ShowModal();
}


/*
 * Function UpdateTitleAndInfo
 * displays the short filename (if exists) of the selected layer
 *  on the caption of the main GerbView window
 * displays image name and the last layer name (found in the gerber file: LN <name> command)
 *  in the status bar
 * Note layer name can change when reading a gerber file, and the layer name is the last found.
 * So, show the layer name is not very useful, and can be seen as a debug feature.
 */
void GERBVIEW_FRAME::UpdateTitleAndInfo()
{
    GERBER_IMAGE* gerber = g_GERBER_List[ getActiveLayer() ];
    wxString      text;

    // Display the gerber filename
    if( gerber == NULL )
    {
        text = wxGetApp().GetAppName() + wxT( " " ) + GetBuildVersion();
        SetTitle( text );
        SetStatusText( wxEmptyString, 0 );
        text.Printf( _( "Layer %d not in use" ), getActiveLayer() + 1 );
        m_TextInfo->SetValue( text );
        ClearMsgPanel();
        return;
    }

    text = _( "File:" );
    text << wxT( " " ) << gerber->m_FileName;
    SetTitle( text );

    gerber->DisplayImageInfo();

    // Display Image Name and Layer Name (from the current gerber data):
    text.Printf( _( "Image name: \"%s\"  Layer name: \"%s\"" ),
                 GetChars( gerber->m_ImageName ),
                 GetChars( gerber->GetLayerParams().m_LayerName ) );
    SetStatusText( text, 0 );

    // Display data format like fmt in X3.4Y3.4 no LZ or fmt mm X2.3 Y3.5 no TZ in main toolbar
    text.Printf( wxT( "fmt: %s X%d.%d Y%d.%d no %cZ" ),
                 gerber->m_GerbMetric ? wxT( "mm" ) : wxT( "in" ),
                 gerber->m_FmtLen.x - gerber->m_FmtScale.x, gerber->m_FmtScale.x,
                 gerber->m_FmtLen.y - gerber->m_FmtScale.y, gerber->m_FmtScale.y,
                 gerber->m_NoTrailingZeros ? 'T' : 'L' );

    m_TextInfo->SetValue( text );
}