/*************/
/* block.cpp */
/*************/


#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "class_drawpanel.h"
#include "confirm.h"
#include "block_commande.h"

#include "pcbnew.h"
#include "wxPcbStruct.h"
#include "autorout.h"
#include "pcbplot.h"
#include "trigo.h"

#include "protos.h"

#define BLOCK_OUTLINE_COLOR YELLOW

/** Function drawPickedItems
 * draws items currently selected in a block
 * @param aPanel = Current draw panel
 * @param aDC = Current device context
 * @param aOffset = Drawing offset
 **/
static void drawPickedItems( WinEDA_DrawPanel* aPanel, wxDC* aDC,
                             wxPoint aOffset );
/** Function drawMovingBlock
 * handles drawing of a moving block
 * @param aPanel = Current draw panel
 * @param aDC = Current device context
 * @param aErase = Erase block at current position
 **/
static void drawMovingBlock( WinEDA_DrawPanel* aPanel, wxDC* aDC,
                             bool aErase );


static bool Block_Include_Modules     = TRUE;
static bool BlockIncludeLockedModules = TRUE;
static bool Block_Include_Tracks      = TRUE;
static bool Block_Include_Zones       = TRUE;
static bool Block_Include_Draw_Items  = TRUE;
static bool Block_Include_Edges_Items = TRUE;
static bool Block_Include_PcbTextes   = TRUE;
static bool BlockDrawItems            = TRUE;

/************************************/
/* class WinEDA_ExecBlockCmdFrame */
/************************************/

class WinEDA_ExecBlockCmdFrame : public wxDialog
{
private:

    WinEDA_BasePcbFrame* m_Parent;
    wxCheckBox*          m_Include_Modules;
    wxCheckBox*          m_IncludeLockedModules;
    wxCheckBox*          m_Include_Tracks;
    wxCheckBox*          m_Include_Zones;
    wxCheckBox*          m_Include_Draw_Items;
    wxCheckBox*          m_Include_Edges_Items;
    wxCheckBox*          m_Include_PcbTextes;
    wxCheckBox*          m_DrawBlockItems;

public:

    WinEDA_ExecBlockCmdFrame( WinEDA_BasePcbFrame* parent,
                              const wxString&      title );
    ~WinEDA_ExecBlockCmdFrame()
    {
    }


private:
    void ExecuteCommand( wxCommandEvent& event );
    void Cancel( wxCommandEvent& event );
    void checkBoxClicked( wxCommandEvent& aEvent );

    DECLARE_EVENT_TABLE()
};


BEGIN_EVENT_TABLE( WinEDA_ExecBlockCmdFrame, wxDialog )
    EVT_BUTTON( wxID_OK, WinEDA_ExecBlockCmdFrame::ExecuteCommand )
    EVT_BUTTON( wxID_CANCEL, WinEDA_ExecBlockCmdFrame::Cancel )
    EVT_CHECKBOX( wxID_ANY, WinEDA_ExecBlockCmdFrame::checkBoxClicked )
END_EVENT_TABLE()


static bool InstallBlockCmdFrame( WinEDA_BasePcbFrame* parent,
                                  const wxString&      title )
{
    int     nocmd;
    wxPoint oldpos = parent->GetScreen()->m_Curseur;

    parent->DrawPanel->m_IgnoreMouseEvents = TRUE;
    WinEDA_ExecBlockCmdFrame* frame =
        new WinEDA_ExecBlockCmdFrame( parent, title );

    nocmd = frame->ShowModal();
    frame->Destroy();

    parent->GetScreen()->m_Curseur = oldpos;

    parent->DrawPanel->MouseToCursorSchema();
    parent->DrawPanel->m_IgnoreMouseEvents = FALSE;

    parent->DrawPanel->SetCursor( parent->DrawPanel->m_PanelCursor =
                                  parent->DrawPanel->m_PanelDefaultCursor );

    return nocmd ? FALSE : TRUE;
}


WinEDA_ExecBlockCmdFrame::WinEDA_ExecBlockCmdFrame( WinEDA_BasePcbFrame* parent,
                                                    const wxString&      title ) :
    wxDialog( parent, -1, title, wxPoint( -1, -1 ), wxDefaultSize,
              DIALOG_STYLE )
{
    wxPoint   pos;
    wxButton* m_button1;
    wxButton* m_button2;

    m_Parent = parent;
    Centre();
    this->SetSizeHints( wxDefaultSize, wxDefaultSize );
    this->SetFont( wxFont( wxNORMAL_FONT->GetPointSize(), 70, 90, 90,
                           false, wxEmptyString ) );

    /* Sizer 1 creation */
    wxFlexGridSizer* fgSizer1;
    fgSizer1 = new wxFlexGridSizer( 7, 1, 0, 0 );
    fgSizer1->SetFlexibleDirection( wxBOTH );
    fgSizer1->SetNonFlexibleGrowMode( wxFLEX_GROWMODE_SPECIFIED );

    m_Include_Modules = new wxCheckBox( this, -1, _( "Include Modules" ),
                                        wxDefaultPosition, wxDefaultSize,
                                        0 );
    m_Include_Modules->SetValue( Block_Include_Modules );
    fgSizer1->Add( m_Include_Modules, 0, wxALL, 5 );

    m_IncludeLockedModules = new wxCheckBox( this, -1, _( "Include Locked Modules" ),
                                            wxDefaultPosition, wxDefaultSize,
                                            0 );
    m_IncludeLockedModules->SetValue( BlockIncludeLockedModules );
    if( m_Include_Modules->GetValue() )
        m_IncludeLockedModules->Enable();
    else
        m_IncludeLockedModules->Disable();
    fgSizer1->Add( m_IncludeLockedModules, 0, wxALL, 5 );

    m_Include_Tracks = new wxCheckBox( this, -1, _( "Include Tracks" ),
                                       wxDefaultPosition, wxDefaultSize, 0 );
    m_Include_Tracks->SetValue( Block_Include_Tracks );
    fgSizer1->Add( m_Include_Tracks, 0, wxALL, 5 );

    m_Include_Zones = new wxCheckBox( this, -1, _( "Include Zones" ),
                                      wxDefaultPosition, wxDefaultSize, 0 );
    m_Include_Zones->SetValue( Block_Include_Zones );
    fgSizer1->Add( m_Include_Zones, 0, wxALL, 5 );

    m_Include_PcbTextes = new wxCheckBox( this, -1,
                                          _( "Include Text Items" ),
                                          wxDefaultPosition,
                                          wxDefaultSize, 0 );
    m_Include_PcbTextes->SetValue( Block_Include_PcbTextes );
    fgSizer1->Add( m_Include_PcbTextes, 0, wxALL, 5 );

    m_Include_Draw_Items = new wxCheckBox( this, -1, _( "Include Drawings" ),
                                           wxDefaultPosition,
                                           wxDefaultSize, 0 );
    m_Include_Draw_Items->SetValue( Block_Include_Draw_Items );
    fgSizer1->Add( m_Include_Draw_Items, 0, wxALL, 5 );

    m_Include_Edges_Items = new wxCheckBox( this, -1,
                                            _( "Include Board Outline Layer" ),
                                            wxDefaultPosition,
                                            wxDefaultSize, 0 );
    m_Include_Edges_Items->SetValue( Block_Include_Edges_Items );
    fgSizer1->Add( m_Include_Edges_Items, 0, wxALL, 5 );

    m_DrawBlockItems = new wxCheckBox( this, -1,
                                       _( "Draw Block Items" ),
                                       wxDefaultPosition,
                                       wxDefaultSize, 0 );
    m_DrawBlockItems->SetValue( BlockDrawItems );
    fgSizer1->Add( m_DrawBlockItems, 0, wxALL, 5 );

    /* Sizer 2 creation */
    wxFlexGridSizer* fgSizer2;
    fgSizer2 = new wxFlexGridSizer( 1, 2, 0, 0 );
    fgSizer2->SetFlexibleDirection( wxBOTH );
    fgSizer2->SetNonFlexibleGrowMode( wxFLEX_GROWMODE_SPECIFIED );

    m_button2 = new wxButton( this, wxID_CANCEL, _( "Cancel" ),
                              wxDefaultPosition, wxDefaultSize, 0 );
    fgSizer2->Add( m_button2, 0, wxALL, 5 );
    m_button1 = new wxButton( this, wxID_OK, _( "OK" ), wxDefaultPosition,
                              wxDefaultSize, 0 );
    m_button1->SetDefault();
    fgSizer2->Add( m_button1, 0, wxALL, 5 );

    fgSizer1->Add( fgSizer2, 1, wxALIGN_RIGHT, 5 );
    this->SetSizer( fgSizer1 );
    this->Layout();
    fgSizer1->Fit( this );
}


void WinEDA_ExecBlockCmdFrame::Cancel( wxCommandEvent& WXUNUSED (event) )
{
    EndModal( -1 );
}

void WinEDA_ExecBlockCmdFrame::checkBoxClicked( wxCommandEvent& WXUNUSED (aEvent) )
{
    if( m_Include_Modules->GetValue() )
        m_IncludeLockedModules->Enable();
    else
        m_IncludeLockedModules->Disable();
}

void WinEDA_ExecBlockCmdFrame::ExecuteCommand( wxCommandEvent& event )
{
    Block_Include_Modules     = m_Include_Modules->GetValue();
    BlockIncludeLockedModules = m_IncludeLockedModules->GetValue();
    Block_Include_Tracks      = m_Include_Tracks->GetValue();
    Block_Include_Zones       = m_Include_Zones->GetValue();
    Block_Include_Draw_Items  = m_Include_Draw_Items->GetValue();
    Block_Include_Edges_Items = m_Include_Edges_Items->GetValue();
    Block_Include_PcbTextes   = m_Include_PcbTextes->GetValue();
    BlockDrawItems            = m_DrawBlockItems->GetValue();

    EndModal( 0 );
}


/* Return the block command (BLOCK_MOVE, BLOCK_COPY...) corresponding to
 *  the key (ALT, SHIFT ALT ..)
 */
int WinEDA_PcbFrame::ReturnBlockCommand( int key )
{
    int cmd = 0;

    switch( key )
    {
    default:
        cmd = key & 0x255;
        break;

    case 0:
        cmd = BLOCK_MOVE;
        break;

    case GR_KB_SHIFT:
        cmd = BLOCK_COPY;
        break;

    case GR_KB_CTRL:
        cmd = BLOCK_ROTATE;
        break;

    case GR_KB_SHIFTCTRL:
        cmd = BLOCK_DELETE;
        break;

    case GR_KB_ALT:
        cmd = BLOCK_FLIP;
        break;

    case MOUSE_MIDDLE:
        cmd = BLOCK_ZOOM;
        break;
    }

    return cmd;
}


/* Routine to handle the BLOCK PLACE command */
void WinEDA_PcbFrame::HandleBlockPlace( wxDC* DC )
{
    bool err = FALSE;

    if( DrawPanel->ManageCurseur == NULL )
    {
        err = TRUE;
        DisplayError( this, wxT( "Error in HandleBlockPLace : ManageCurseur = NULL" ) );
    }
    GetScreen()->m_BlockLocate.m_State = STATE_BLOCK_STOP;

    switch( GetScreen()->m_BlockLocate.m_Command )
    {
    case BLOCK_IDLE:
        err = TRUE;
        break;

    case BLOCK_DRAG:                /* Drag */
    case BLOCK_MOVE:                /* Move */
    case BLOCK_PRESELECT_MOVE:      /* Move with preselection list*/
        if( DrawPanel->ManageCurseur )
            DrawPanel->ManageCurseur( DrawPanel, DC, FALSE );
        Block_Move();
        GetScreen()->m_BlockLocate.ClearItemsList();
        break;

    case BLOCK_COPY:     /* Copy */
        if( DrawPanel->ManageCurseur )
            DrawPanel->ManageCurseur( DrawPanel, DC, FALSE );
        Block_Duplicate();
        GetScreen()->m_BlockLocate.ClearItemsList();
        break;

    case BLOCK_PASTE:
        break;

    case BLOCK_ZOOM:        // Handled by HandleBlockEnd()
    default:
        break;
    }

    OnModify();

    DrawPanel->ManageCurseur = NULL;
    DrawPanel->ForceCloseManageCurseur   = NULL;
    GetScreen()->m_BlockLocate.m_Flags   = 0;
    GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
    GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
    if( GetScreen()->m_BlockLocate.GetCount() )
    {
        DisplayError( this, wxT( "Error in HandleBlockPLace some items left in list" ) );
        GetScreen()->m_BlockLocate.ClearItemsList();
    }

    DisplayToolMsg( wxEmptyString );
}


/* Handle END BLOCK command.
 * Returns:
 * 0 if no features selected
 * 1 otherwise
 * -1 If order is completed and components found (block delete, block save)
 */
int WinEDA_PcbFrame::HandleBlockEnd( wxDC* DC )
{
    int endcommande = TRUE;

    // If coming here after cancel block, clean up and exit
    if( GetScreen()->m_BlockLocate.m_State == STATE_NO_BLOCK )
    {
        DrawPanel->ManageCurseur = NULL;
        DrawPanel->ForceCloseManageCurseur = NULL;
        GetScreen()->m_BlockLocate.m_Flags   = 0;
        GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
        GetScreen()->m_BlockLocate.ClearItemsList();
        DisplayToolMsg( wxEmptyString );
        return 0;
    }

    // Show dialog if there are no selected items and
    // we're not zooming
    if ( !GetScreen()->m_BlockLocate.GetCount() &&
         GetScreen()->m_BlockLocate.m_Command != BLOCK_ZOOM )
    {
        if( !InstallBlockCmdFrame( this, _( "Block Operation" ) ) )
        {
            DrawPanel->ManageCurseur = NULL;
            DrawPanel->ForceCloseManageCurseur = NULL;
            GetScreen()->m_BlockLocate.m_Flags   = 0;
            GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
            GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
            GetScreen()->m_BlockLocate.ClearItemsList();
            DisplayToolMsg( wxEmptyString );
            DrawAndSizingBlockOutlines( DrawPanel, DC, FALSE );
            return 0;
        }
        DrawAndSizingBlockOutlines( DrawPanel, DC, FALSE );
        Block_SelectItems();
        // Exit if no items found
        if( !GetScreen()->m_BlockLocate.GetCount() ) {
            DrawPanel->ManageCurseur = NULL;
            DrawPanel->ForceCloseManageCurseur = NULL;
            GetScreen()->m_BlockLocate.m_Flags   = 0;
            GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
            GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
            GetScreen()->m_BlockLocate.ClearItemsList();
            DisplayToolMsg( wxEmptyString );
            return 0;
        }
        // Move cursor to the center of the smallest rectangle
        // containing the centers of all selected items.
        // Also set m_BlockLocate to the size of the rectangle.
        PICKED_ITEMS_LIST* itemsList = &DrawPanel->GetScreen()->m_BlockLocate.m_ItemsSelection;
        wxPoint blockCenter;
        int minX, minY, maxX, maxY;
        int tempX, tempY;
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( 0 );
        minX = item->GetPosition().x;
        minY = item->GetPosition().y;
        maxX = minX;
        maxY = minY;
        for( unsigned ii = 1; ii < itemsList->GetCount(); ii++ )
        {
            item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
            tempX = item->GetPosition().x;
            tempY = item->GetPosition().y;
            if( tempX > maxX )
                maxX = tempX;
            if( tempX < minX )
                minX = tempX;
            if( tempY > maxY )
                maxY = tempY;
            if( tempY < minY )
                minY = tempY;
        }
        blockCenter.x = ( minX + maxX ) / 2;
        blockCenter.y = ( minY + maxY ) / 2;
        DrawPanel->CursorOff( DC );
        GetScreen()->m_Curseur = blockCenter;
        GetScreen()->m_BlockLocate.SetLastCursorPosition( blockCenter );
        GetScreen()->m_BlockLocate.SetOrigin( minX, minY );
        GetScreen()->m_BlockLocate.SetEnd( maxX, maxY );
        DrawPanel->MouseToCursorSchema();
        DrawPanel->CursorOn( DC );
    }

    if( DrawPanel->ManageCurseur )
        switch( GetScreen()->m_BlockLocate.m_Command )
        {
        case BLOCK_IDLE:
            DisplayError( this, wxT( "Error in HandleBlockPLace" ) );
            break;

        case BLOCK_DRAG:            /* Drag (not used, for future enhancements)*/
        case BLOCK_MOVE:            /* Move */
        case BLOCK_COPY:            /* Copy */
        case BLOCK_PRESELECT_MOVE:  /* Move with preselection list*/
            GetScreen()->m_BlockLocate.m_State = STATE_BLOCK_MOVE;
            endcommande = FALSE;
            DrawPanel->ManageCurseur = drawMovingBlock;
            DrawPanel->ManageCurseur( DrawPanel, DC, FALSE );
            break;

        case BLOCK_DELETE: /* Delete */
            DrawPanel->ManageCurseur = NULL;
            GetScreen()->m_BlockLocate.m_State = STATE_BLOCK_STOP;
            Block_Delete();
            break;

        case BLOCK_ROTATE: /* Rotation */
            DrawPanel->ManageCurseur = NULL;
            GetScreen()->m_BlockLocate.m_State = STATE_BLOCK_STOP;
            Block_Rotate();
            break;

        case BLOCK_FLIP: /* Flip */
            DrawPanel->ManageCurseur = NULL;
            GetScreen()->m_BlockLocate.m_State = STATE_BLOCK_STOP;
            Block_Flip();
            break;

        case BLOCK_SAVE: /* Save (not used, for future enhancements)*/
            GetScreen()->m_BlockLocate.m_State = STATE_BLOCK_STOP;
            if( GetScreen()->m_BlockLocate.GetCount() )
            {
// TODO (if useful)         Save_Block( );
            }
            break;

        case BLOCK_PASTE:
            break;

        case BLOCK_ZOOM: /* Window Zoom */

            // Turn off the redraw block routine now so it is not displayed
            // with one corner at the new center of the screen
            DrawPanel->ManageCurseur = NULL;
            Window_Zoom( GetScreen()->m_BlockLocate );
            break;

        default:
            break;
        }

    if( endcommande == TRUE )
    {
        GetScreen()->m_BlockLocate.m_Flags   = 0;
        GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
        GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
        GetScreen()->m_BlockLocate.ClearItemsList();
        DrawPanel->ManageCurseur = NULL;
        DrawPanel->ForceCloseManageCurseur = NULL;
        DisplayToolMsg( wxEmptyString );
    }

    return endcommande;
}


/* Block operations: */

/**
 * Function Block_SelectItems
 * Uses  GetScreen()->m_BlockLocate
 * select items within the selected block.
 * selected items are put in the pick list
 * @param none
 */
void WinEDA_PcbFrame::Block_SelectItems()
{
    int         masque_layer;

    GetScreen()->m_BlockLocate.Normalize();

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.m_ItemsSelection;
    ITEM_PICKER        picker( NULL, UR_UNSPECIFIED );

    if( Block_Include_Modules )
    {
        for( MODULE* module = m_Pcb->m_Modules; module != NULL;
             module = module->Next() )
        {
            if( module->HitTest( GetScreen()->m_BlockLocate ) &&
                ( !module->IsLocked() || BlockIncludeLockedModules ) )
            {
                picker.m_PickedItem     = module;
                picker.m_PickedItemType = module->Type();
                itemsList->PushItem( picker );
            }
        }
    }

    /* Remove tracks and vias */
    if( Block_Include_Tracks )
    {
        for( TRACK* pt_segm = m_Pcb->m_Track; pt_segm != NULL;
             pt_segm = pt_segm->Next() )
        {
            if( pt_segm->HitTest( GetScreen()->m_BlockLocate ) )
            {
                /* This track is in bloc: select it */
                picker.m_PickedItem     = pt_segm;
                picker.m_PickedItemType = pt_segm->Type();
                itemsList->PushItem( picker );
            }
        }
    }

    /* Select graphic items */
    masque_layer = EDGE_LAYER;
    if( Block_Include_Draw_Items )
        masque_layer = ALL_LAYERS;

    if( !Block_Include_Edges_Items )
        masque_layer &= ~EDGE_LAYER;

    for( BOARD_ITEM* PtStruct = m_Pcb->m_Drawings; PtStruct != NULL;
         PtStruct = PtStruct->Next() )
    {
        bool select_me = false;
        switch( PtStruct->Type() )
        {
        case TYPE_DRAWSEGMENT:
            if( (g_TabOneLayerMask[PtStruct->GetLayer()] & masque_layer) == 0 )
                break;
            if( !PtStruct->HitTest( GetScreen()->m_BlockLocate ) )
                break;
            select_me = true; // This item is in bloc: select it
            break;

        case TYPE_TEXTE:
            if( !Block_Include_PcbTextes )
                break;
            if( !PtStruct->HitTest( GetScreen()->m_BlockLocate ) )
                break;
            select_me = true; // This item is in bloc: select it
            break;

        case TYPE_MIRE:
            if( ( g_TabOneLayerMask[PtStruct->GetLayer()] & masque_layer ) == 0 )
                break;
            if( !PtStruct->HitTest( GetScreen()->m_BlockLocate ) )
                break;
            select_me = true; // This item is in bloc: select it
            break;

        case TYPE_DIMENSION:
            if( ( g_TabOneLayerMask[PtStruct->GetLayer()] & masque_layer ) == 0 )
                break;
            if( !PtStruct->HitTest( GetScreen()->m_BlockLocate ) )
                break;
            select_me = true; // This item is in bloc: select it
            break;

        default:
            break;
        }

        if( select_me )
        {
            picker.m_PickedItem     = PtStruct;
            picker.m_PickedItemType = PtStruct->Type();
            itemsList->PushItem( picker );
        }
    }

    /* Zone selection */
    if( Block_Include_Zones )
    {
#if 0
        /* This section can creates problems if selected:
         * m_Pcb->m_Zone can have a *lot* of items (100 000 is easily possible)
         * so it is not selected (and TODO: will be removed, one day)
         */
        for( SEGZONE* pt_segm = m_Pcb->m_Zone; pt_segm != NULL;
             pt_segm = pt_segm->Next() )
        {    /* Segments used in Zone filling selection */

            if( pt_segm->HitTest( GetScreen()->m_BlockLocate ) )
            {
                picker.m_PickedItem     = pt_segm;
                picker.m_PickedItemType = pt_segm->Type();
                itemsList->PushItem( picker );
            }
        }
#endif
        for( int ii = 0; ii < m_Pcb->GetAreaCount(); ii++ )
        {
            if( m_Pcb->GetArea( ii )->HitTest( GetScreen()->m_BlockLocate ) )
            {
                BOARD_ITEM* zone_c = m_Pcb->GetArea( ii );
                picker.m_PickedItem     = zone_c;
                picker.m_PickedItemType = zone_c->Type();
                itemsList->PushItem( picker );
            }
        }
    }
 }

static void drawPickedItems( WinEDA_DrawPanel* aPanel, wxDC* aDC,
                             wxPoint aOffset )
{
    PICKED_ITEMS_LIST* itemsList = &aPanel->GetScreen()->m_BlockLocate.m_ItemsSelection;
    WinEDA_BasePcbFrame* frame = (WinEDA_BasePcbFrame*) aPanel->GetParent();
    g_Offset_Module = -aOffset;
    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        switch( item->Type() )
        {
        case TYPE_MODULE:
        {
            MODULE* module = (MODULE*) item;
            frame->GetBoard()->m_Status_Pcb &= ~RATSNEST_ITEM_LOCAL_OK;
            DrawModuleOutlines( aPanel, aDC, module );
            break;
        }
        case TYPE_DRAWSEGMENT:
        {
            DRAWSEGMENT* segment = (DRAWSEGMENT*) item;
            segment->Draw( aPanel, aDC, GR_XOR, aOffset );
            break;
        }
        case TYPE_TEXTE:
        {
            TEXTE_PCB* text = (TEXTE_PCB*) item;
            text->Draw( aPanel, aDC, GR_XOR, aOffset );
            break;
        }
        case TYPE_TRACK:
        case TYPE_VIA:
        {
            TRACK* track = (TRACK*) item;
            track->Draw( aPanel, aDC, GR_XOR, aOffset );
            break;
        }
        case TYPE_MIRE:
        {
            MIREPCB* mire = (MIREPCB*) item;
            mire->Draw( aPanel, aDC, GR_XOR, aOffset );
            break;
        }
        case TYPE_DIMENSION:
        {
            DIMENSION* dimension = (DIMENSION*) item;
            dimension->Draw( aPanel, aDC, GR_XOR, aOffset );
            break;
        }
        case TYPE_ZONE_CONTAINER:
        {
            ZONE_CONTAINER* zoneContainer = (ZONE_CONTAINER*) item;
            zoneContainer->Draw( aPanel, aDC, GR_XOR, aOffset );
            zoneContainer->DrawFilledArea( aPanel, aDC, GR_XOR, aOffset );
            break;
        }
        // Currently markers are not affected by block commands
        case TYPE_MARKER_PCB:
        {
            MARKER_PCB* pcbMarker = (MARKER_PCB*) item;
            pcbMarker->Draw( aPanel, aDC, GR_XOR, aOffset );
            break;
        }

        default:
            break;
        }
    }
    g_Offset_Module = wxPoint( 0, 0 );
}

static void drawMovingBlock( WinEDA_DrawPanel* aPanel, wxDC* aDC,
                             bool aErase )
{
    BASE_SCREEN* screen = aPanel->GetScreen();

    if( aErase )
    {
        if( screen->m_BlockLocate.m_MoveVector.x
            || screen->m_BlockLocate.m_MoveVector.y )
        {
            if( !BlockDrawItems )
                screen->m_BlockLocate.Draw( aPanel, aDC, screen->m_BlockLocate.m_MoveVector,
                                            GR_XOR, BLOCK_OUTLINE_COLOR );
            else
                drawPickedItems( aPanel, aDC, screen->m_BlockLocate.m_MoveVector );
        }
    }

    if( screen->m_BlockLocate.m_State != STATE_BLOCK_STOP )
    {
        screen->m_BlockLocate.m_MoveVector.x = screen->m_Curseur.x -
                                               screen->m_BlockLocate.m_BlockLastCursorPosition.x;
        screen->m_BlockLocate.m_MoveVector.y = screen->m_Curseur.y -
                                               screen->m_BlockLocate.m_BlockLastCursorPosition.y;
    }

    if( screen->m_BlockLocate.m_MoveVector.x
        || screen->m_BlockLocate.m_MoveVector.y )
    {
            if( !BlockDrawItems )
                screen->m_BlockLocate.Draw( aPanel, aDC, screen->m_BlockLocate.m_MoveVector,
                                            GR_XOR, BLOCK_OUTLINE_COLOR );
            else
                drawPickedItems( aPanel, aDC, screen->m_BlockLocate.m_MoveVector );
    }
}


/*
 * Erase selected block.
 */
void WinEDA_PcbFrame::Block_Delete()
{
    OnModify();
    SetCurItem( NULL );

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.m_ItemsSelection;
    itemsList->m_Status = UR_DELETED;

    /* unlink items and clear flags */
    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        itemsList->SetPickedItemStatus( UR_DELETED, ii );
        switch( item->Type() )
        {
        case TYPE_MODULE:
        {
            MODULE* module = (MODULE*) item;
            module->m_Flags = 0;
            module->UnLink();
            m_Pcb->m_Status_Pcb = 0;
        }
        break;

        case TYPE_ZONE_CONTAINER:   // a zone area
            m_Pcb->Remove( item );
            break;

        case TYPE_DRAWSEGMENT:  // a segment not on copper layers
        case TYPE_TEXTE:        // a text on a layer
        case TYPE_TRACK:        // a track segment (segment on a copper layer)
        case TYPE_VIA:          // a via (like atrack segment on a copper layer)
        case TYPE_DIMENSION:     // a dimension (graphic item)
        case TYPE_MIRE:         // a target (graphic item)
            item->UnLink();
            break;

        // These items are deleted, but not put in undo list
        case TYPE_MARKER_PCB:            // a marker used to show something
        case TYPE_ZONE:                  // SEG_ZONE items are now deprecated
            item->UnLink();
            itemsList->RemovePicker( ii );
            ii--;
            item->DeleteStructure();
            break;

        default:
            wxMessageBox( wxT( "WinEDA_PcbFrame::Block_Delete( ) error: unexpected type" ) );
            break;
        }
    }

    SaveCopyInUndoList( *itemsList, UR_DELETED );

    Compile_Ratsnest( NULL, TRUE );
    DrawPanel->Refresh( TRUE );
}


/**
 * Function Block_Rotate
 * Rotate all items within the selected block.
 * The rotation center is the center of the block
 * @param none
 */
void WinEDA_PcbFrame::Block_Rotate()
{
    wxPoint oldpos;
    wxPoint centre;         // rotation cent-re for the rotation transform
    int rotAngle = 900;     // rotation angle in 0.1 deg.

    oldpos = GetScreen()->m_Curseur;
    centre = GetScreen()->m_BlockLocate.Centre();

    OnModify();

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.m_ItemsSelection;
    itemsList->m_Status = UR_ROTATED;

    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        wxASSERT(item);
        itemsList->SetPickedItemStatus( UR_ROTATED, ii );
        item->Rotate(centre, rotAngle);
        switch( item->Type() )
        {
        case TYPE_MODULE:
            ((MODULE*) item)->m_Flags     = 0;
            m_Pcb->m_Status_Pcb = 0;
        break;

        /* Move and rotate the track segments */
        case TYPE_TRACK:       // a track segment (segment on a copper layer)
        case TYPE_VIA:         // a via (like atrack segment on a copper layer)
            m_Pcb->m_Status_Pcb = 0;
        break;

        case TYPE_ZONE_CONTAINER:
        case TYPE_DRAWSEGMENT:
        case TYPE_TEXTE:
        case TYPE_MIRE:
        case TYPE_DIMENSION:
            break;

        // This item is not put in undo list
        case TYPE_ZONE:         // SEG_ZONE items are now deprecated
            itemsList->RemovePicker( ii );
            ii--;
            break;

        default:
            wxMessageBox( wxT( "WinEDA_PcbFrame::Block_Rotate( ) error: unexpected type" ) );
            break;
        }
    }

    SaveCopyInUndoList( *itemsList, UR_ROTATED, centre );

    Compile_Ratsnest( NULL, TRUE );
    DrawPanel->Refresh( TRUE );
}


/**
 * Function Block_Flip
 * Flip items within the selected block.
 * The flip center is the center of the block
 * @param none
 */
void WinEDA_PcbFrame::Block_Flip()
{
#define INVERT( pos ) (pos) = center.y - ( (pos) - center.y )
    wxPoint memo;
    wxPoint center; /* Position of the axis for inversion of all elements */

    OnModify();

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.m_ItemsSelection;
    itemsList->m_Status = UR_FLIPPED;

    memo = GetScreen()->m_Curseur;

    center = GetScreen()->m_BlockLocate.Centre();

    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        wxASSERT(item);
        itemsList->SetPickedItemStatus( UR_FLIPPED, ii );
        item->Flip(center);
        switch( item->Type() )
        {
        case TYPE_MODULE:
            ((MODULE*) item)->m_Flags     = 0;
            m_Pcb->m_Status_Pcb = 0;
        break;

        /* Move and rotate the track segments */
        case TYPE_TRACK:        // a track segment (segment on a copper layer)
        case TYPE_VIA:          // a via (like atrack segment on a copper layer)
            m_Pcb->m_Status_Pcb = 0;
            break;

        case TYPE_ZONE_CONTAINER:
        case TYPE_DRAWSEGMENT:
        case TYPE_TEXTE:
        case TYPE_MIRE:
        case TYPE_DIMENSION:
            break;

        // This item is not put in undo list
        case TYPE_ZONE:         // SEG_ZONE items are now deprecated
            itemsList->RemovePicker( ii );
            ii--;
            break;


        default:
            wxMessageBox( wxT( "WinEDA_PcbFrame::Block_Flip( ) error: unexpected type" ) );
            break;
        }
    }

    SaveCopyInUndoList( *itemsList, UR_FLIPPED, center );
    Compile_Ratsnest( NULL, TRUE );
    DrawPanel->Refresh( TRUE );
}


/**
 * Function Block_Move
 * moves all tracks and segments within the selected block.
 * New location is determined by the current offset from the selected block's
 * original location.
 * @param none
 */
void WinEDA_PcbFrame::Block_Move()
{
    OnModify();

    wxPoint MoveVector = GetScreen()->m_BlockLocate.m_MoveVector;

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.m_ItemsSelection;
    itemsList->m_Status = UR_MOVED;

    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        itemsList->SetPickedItemStatus( UR_MOVED, ii );
        item->Move( MoveVector );

        switch( item->Type() )
        {
        case TYPE_MODULE:
            m_Pcb->m_Status_Pcb    = 0;
            ((MODULE*) item)->m_Flags        = 0;
        break;

        /* Move track segments */
        case TYPE_TRACK:       // a track segment (segment on a copper layer)
        case TYPE_VIA:         // a via (like a track segment on a copper layer)
            m_Pcb->m_Status_Pcb = 0;
        break;

        case TYPE_ZONE_CONTAINER:
        case TYPE_DRAWSEGMENT:
        case TYPE_TEXTE:
        case TYPE_MIRE:
        case TYPE_DIMENSION:
            break;

        // This item is not put in undo list
        case TYPE_ZONE:        // SEG_ZONE items are now deprecated
            itemsList->RemovePicker( ii );
            ii--;
            break;

        default:
            wxMessageBox( wxT( "WinEDA_PcbFrame::Block_Move( ) error: unexpected type" ) );
            break;
        }
    }

    SaveCopyInUndoList( *itemsList, UR_MOVED, MoveVector );

    Compile_Ratsnest( NULL, TRUE );
    DrawPanel->Refresh( TRUE );
}


/**
 * Function Block_Duplicate
 * Duplicate all items within the selected block.
 * New location is determined by the current offset from the selected block's
 * original location.
 * @param none
 */
void WinEDA_PcbFrame::Block_Duplicate()
{
    wxPoint MoveVector = GetScreen()->m_BlockLocate.m_MoveVector;

    OnModify();

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.m_ItemsSelection;

    PICKED_ITEMS_LIST newList;
    newList.m_Status = UR_NEW;

    ITEM_PICKER picker(NULL, UR_NEW);
    BOARD_ITEM * newitem;

    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        newitem = NULL;
        switch( item->Type() )
        {
        case TYPE_MODULE:
        {
            MODULE* module = (MODULE*) item;
            MODULE* new_module;
            m_Pcb->m_Status_Pcb = 0;
            module->m_Flags     = 0;
            newitem = new_module = new MODULE( m_Pcb );
            new_module->Copy( module );
            new_module->m_TimeStamp = GetTimeStamp();
            m_Pcb->m_Modules.PushFront( new_module );
        }
        break;

        case TYPE_TRACK:
        case TYPE_VIA:
        {
            TRACK* track = (TRACK*) item;
            m_Pcb->m_Status_Pcb = 0;
            TRACK* new_track = track->Copy();
            newitem = new_track;
            m_Pcb->m_Track.PushFront( new_track );
        }
        break;

        case TYPE_ZONE:                  // SEG_ZONE items are now deprecated
            break;

        case TYPE_ZONE_CONTAINER:
        {
            ZONE_CONTAINER* new_zone =
                new ZONE_CONTAINER( (BOARD*) item->GetParent() );
            new_zone->Copy( (ZONE_CONTAINER*) item );
            new_zone->m_TimeStamp = GetTimeStamp();
            newitem = new_zone;
            m_Pcb->Add( new_zone );
        }
        break;

        case TYPE_DRAWSEGMENT:
        {
            DRAWSEGMENT* new_drawsegment = new DRAWSEGMENT( m_Pcb );
            new_drawsegment->Copy( (DRAWSEGMENT*) item );
            m_Pcb->Add( new_drawsegment );
            newitem = new_drawsegment;
        }
        break;

        case TYPE_TEXTE:
        {
            TEXTE_PCB* new_pcbtext = new TEXTE_PCB( m_Pcb );
            new_pcbtext->Copy( (TEXTE_PCB*) item );
            m_Pcb->Add( new_pcbtext );
            newitem = new_pcbtext;
        }
        break;

        case TYPE_MIRE:
        {
            MIREPCB* new_mire = new MIREPCB( m_Pcb );
            new_mire->Copy( (MIREPCB*) item );
            m_Pcb->Add( new_mire );
            newitem = new_mire;
        }
        break;

        case TYPE_DIMENSION:
        {
            DIMENSION* new_cotation = new DIMENSION( m_Pcb );
            new_cotation->Copy( (DIMENSION*) item );
            m_Pcb->Add( new_cotation );
            newitem = new_cotation;
        }
        break;

        default:
            wxMessageBox( wxT( "WinEDA_PcbFrame::Block_Duplicate( ) error: unexpected type" ) );
            break;
        }

        if ( newitem )
        {
            newitem->Move( MoveVector );
            picker.m_PickedItem = newitem;
            picker.m_PickedItemType = newitem->Type();
            newList.PushItem(picker);
        }
    }

    if( newList.GetCount() )
        SaveCopyInUndoList( newList, UR_NEW );

    Compile_Ratsnest( NULL, TRUE );
    DrawPanel->Refresh( TRUE );
}