kicad/pcbnew/pcb_text.cpp

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2012 Jean-Pierre Charras, jean-pierre.charras@ujf-grenoble.fr
 * Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
 * Copyright (C) 1992-2020 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 <eda_item.h>
#include <pcb_edit_frame.h>
#include <base_units.h>
#include <bitmaps.h>
#include <board.h>
#include <core/mirror.h>
#include <pcb_text.h>
#include <pcb_painter.h>
#include <trigo.h>
#include <kicad_string.h>

using KIGFX::PCB_RENDER_SETTINGS;


PCB_TEXT::PCB_TEXT( BOARD_ITEM* parent ) :
    BOARD_ITEM( parent, PCB_TEXT_T ),
    EDA_TEXT()
{
    SetMultilineAllowed( true );
}


PCB_TEXT::~PCB_TEXT()
{
}


wxString PCB_TEXT::GetShownText( int aDepth ) const
{
    BOARD* board = dynamic_cast<BOARD*>( GetParent() );

    std::function<bool( wxString* )> pcbTextResolver =
            [&]( wxString* token ) -> bool
            {
                if( token->IsSameAs( wxT( "LAYER" ) ) )
                {
                    *token = GetLayerName();
                    return true;
                }

                if( token->Contains( ':' ) )
                {
                    wxString      remainder;
                    wxString      ref = token->BeforeFirst( ':', &remainder );
                    BOARD_ITEM*   refItem = board->GetItem( KIID( ref ) );

                    if( refItem && refItem->Type() == PCB_FOOTPRINT_T )
                    {
                        FOOTPRINT* refFP = static_cast<FOOTPRINT*>( refItem );

                        if( refFP->ResolveTextVar( &remainder, aDepth + 1 ) )
                        {
                            *token = remainder;
                            return true;
                        }
                    }
                }
                return false;
            };

    std::function<bool( wxString* )> boardTextResolver =
            [&]( wxString* token ) -> bool
            {
                return board->ResolveTextVar( token, aDepth + 1 );
            };

    bool     processTextVars = false;
    wxString text = EDA_TEXT::GetShownText( &processTextVars );

    if( board && processTextVars && aDepth < 10 )
        text = ExpandTextVars( text, &pcbTextResolver, &boardTextResolver, board->GetProject() );

    return text;
}


void PCB_TEXT::SetTextAngle( double aAngle )
{
    EDA_TEXT::SetTextAngle( NormalizeAngle360Min( aAngle ) );
}


void PCB_TEXT::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
    EDA_UNITS units = aFrame->GetUserUnits();

    // Don't use GetShownText() here; we want to show the user the variable references
    aList.emplace_back( _( "PCB Text" ), UnescapeString( GetText() ) );

    if( IsLocked() )
        aList.emplace_back( _( "Status" ), _( "locked" ) );

    aList.emplace_back( _( "Layer" ), GetLayerName() );

    aList.emplace_back( _( "Mirror" ), IsMirrored() ? _( "Yes" ) : _( "No" ) );

    aList.emplace_back( _( "Angle" ), wxString::Format( "%g", GetTextAngleDegrees() ) );

    aList.emplace_back( _( "Thickness" ), MessageTextFromValue( units, GetTextThickness() ) );
    aList.emplace_back( _( "Width" ), MessageTextFromValue( units, GetTextWidth() ) );
    aList.emplace_back( _( "Height" ), MessageTextFromValue( units, GetTextHeight() ) );
}


const EDA_RECT PCB_TEXT::GetBoundingBox() const
{
    EDA_RECT rect = GetTextBox();

    if( GetTextAngle() )
        rect = rect.GetBoundingBoxRotated( GetTextPos(), GetTextAngle() );

    return rect;
}


void PCB_TEXT::Rotate( const wxPoint& aRotCentre, double aAngle )
{
    wxPoint pt = GetTextPos();
    RotatePoint( &pt, aRotCentre, aAngle );
    SetTextPos( pt );

    SetTextAngle( GetTextAngle() + aAngle );
}


void PCB_TEXT::Flip( const wxPoint& aCentre, bool aFlipLeftRight )
{
    double angle = GetTextAngle();
    bool   vertical = KiROUND( angle ) % 1800 == 900;

    if( KiROUND( angle ) != 0 )
    {
        Rotate( aCentre, -angle );

        if( vertical )
            aFlipLeftRight = !aFlipLeftRight;
    }

    // Flip the bounding box
    EDA_RECT box = GetTextBox();
    int      left = box.GetLeft();
    int      right = box.GetRight();
    int      top = box.GetTop();
    int      bottom = box.GetBottom();
    wxPoint  pos = GetTextPos();

    if( aFlipLeftRight )
    {
        MIRROR( left, aCentre.x );
        MIRROR( right, aCentre.x );
        std::swap( left, right );

        MIRROR( pos.x, aCentre.x );
    }
    else
    {
        MIRROR( top, aCentre.y );
        MIRROR( bottom, aCentre.y );
        std::swap( top, bottom );

        MIRROR( pos.y, aCentre.y );
    }

    // Now put the text back in its bounding box
    switch( GetHorizJustify() )
    {
    case GR_TEXT_HJUSTIFY_LEFT:   SetTextX( IsMirrored() ? left : right ); break;
    case GR_TEXT_HJUSTIFY_CENTER: SetTextX( pos.x );                       break;
    case GR_TEXT_HJUSTIFY_RIGHT:  SetTextX( IsMirrored() ? right : left ); break;
    }

    if( !aFlipLeftRight )
    {
        switch( GetVertJustify() )
        {
        case GR_TEXT_VJUSTIFY_TOP:    SetTextY( bottom );               break;
        case GR_TEXT_VJUSTIFY_CENTER: SetTextY( pos.y );                break;
        case GR_TEXT_VJUSTIFY_BOTTOM: SetTextY( top );                  break;
        }
    }

    // And restore orientation
    if( KiROUND( angle ) != 0 )
        Rotate( aCentre, angle );

    SetLayer( FlipLayer( GetLayer(), GetBoard()->GetCopperLayerCount() ) );
    SetMirrored( !IsMirrored() );
}


wxString PCB_TEXT::GetSelectMenuText( EDA_UNITS aUnits ) const
{
    return wxString::Format( _( "PCB Text '%s' on %s"), ShortenedShownText(), GetLayerName() );
}


BITMAPS PCB_TEXT::GetMenuImage() const
{
    return BITMAPS::text;
}


EDA_ITEM* PCB_TEXT::Clone() const
{
    return new PCB_TEXT( *this );
}


void PCB_TEXT::SwapData( BOARD_ITEM* aImage )
{
    assert( aImage->Type() == PCB_TEXT_T );

    std::swap( *((PCB_TEXT*) this), *((PCB_TEXT*) aImage) );
}


std::shared_ptr<SHAPE> PCB_TEXT::GetEffectiveShape( PCB_LAYER_ID aLayer ) const
{
    return GetEffectiveTextShape();
}


static struct TEXTE_PCB_DESC
{
    TEXTE_PCB_DESC()
    {
        PROPERTY_MANAGER& propMgr = PROPERTY_MANAGER::Instance();
        REGISTER_TYPE( PCB_TEXT );
        propMgr.AddTypeCast( new TYPE_CAST<PCB_TEXT, BOARD_ITEM> );
        propMgr.AddTypeCast( new TYPE_CAST<PCB_TEXT, EDA_TEXT> );
        propMgr.InheritsAfter( TYPE_HASH( PCB_TEXT ), TYPE_HASH( BOARD_ITEM ) );
        propMgr.InheritsAfter( TYPE_HASH( PCB_TEXT ), TYPE_HASH( EDA_TEXT ) );
    }
} _TEXTE_PCB_DESC;