pcb_textbox.cpp

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/*
 * 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, see <https://www.gnu.org/licenses/>.
 */
 
#include <advanced_config.h>
#include <common.h>
#include <pcb_edit_frame.h>
#include <base_units.h>
#include <bitmaps.h>
#include <board.h>
#include <board_design_settings.h>
#include <footprint.h>
#include <pcb_textbox.h>
#include <pcb_painter.h>
#include <trigo.h>
#include <string_utils.h>
#include <geometry/shape_compound.h>
#include <geometry/shape_rect.h>
#include <geometry/geometry_utils.h>
#include <callback_gal.h>
#include <convert_basic_shapes_to_polygon.h>
#include <macros.h>
#include <core/ignore.h>
#include <api/api_enums.h>
#include <api/api_utils.h>
#include <api/board/board_types.pb.h>
#include <properties/property.h>
#include <properties/property_mgr.h>
 
 
PCB_TEXTBOX::PCB_TEXTBOX( BOARD_ITEM* aParent, KICAD_T aType ) :
        PCB_SHAPE( aParent, aType, SHAPE_T::RECTANGLE ),
        EDA_TEXT( pcbIUScale ),
        m_borderEnabled( true ),
        m_libTextAngle( ANGLE_0 )
{
    SetHorizJustify( GR_TEXT_H_ALIGN_LEFT );
    SetVertJustify( GR_TEXT_V_ALIGN_CENTER );
    SetMultilineAllowed( true );
 
    int defaultMargin = GetLegacyTextMargin();
    m_marginLeft = defaultMargin;
    m_marginTop = defaultMargin;
    m_marginRight = defaultMargin;
    m_marginBottom = defaultMargin;
}
 
 
PCB_TEXTBOX::~PCB_TEXTBOX()
{
}
 
 
void PCB_TEXTBOX::CopyFrom( const BOARD_ITEM* aOther )
{
    wxCHECK( aOther && aOther->Type() == PCB_TEXTBOX_T, /* void */ );
    *this = *static_cast<const PCB_TEXTBOX*>( aOther );
}
 
 
void PCB_TEXTBOX::Serialize( kiapi::board::types::BoardTextBox& boardText ) const
{
    using namespace kiapi::common::types;
    using namespace kiapi::board;
    boardText.set_layer( ToProtoEnum<PCB_LAYER_ID, types::BoardLayer>( GetLayer() ) );
    boardText.mutable_id()->set_value( m_Uuid.AsStdString() );
    boardText.set_locked( IsLocked() ? LockedState::LS_LOCKED : LockedState::LS_UNLOCKED );
 
    TextBox& text = *boardText.mutable_textbox();
 
    kiapi::common::PackVector2( *text.mutable_top_left(), GetPosition() );
    kiapi::common::PackVector2( *text.mutable_bottom_right(), GetEnd() );
    text.set_text( GetText().ToStdString() );
 
    kiapi::common::PackTextAttributes( *text.mutable_attributes(), GetAttributes() );
 
    text.set_border_enabled( IsBorderEnabled() );
    text.mutable_margin_left()->set_value_nm( GetMarginLeft() );
    text.mutable_margin_top()->set_value_nm( GetMarginTop() );
    text.mutable_margin_right()->set_value_nm( GetMarginRight() );
    text.mutable_margin_bottom()->set_value_nm( GetMarginBottom() );
 
    boardText.set_knockout( IsKnockout() );
 
    if( FOOTPRINT* parent = GetParentFootprint() )
        boardText.mutable_parent()->set_value( parent->m_Uuid.AsStdString() );
    else if( const BOARD* board = GetBoard() )
        boardText.mutable_parent()->set_value( board->m_Uuid.AsStdString() );
 
    kiapi::common::PackCustomProperties( boardText.mutable_custom_properties(), *this );
}
 
 
void PCB_TEXTBOX::Serialize( google::protobuf::Any& aContainer ) const
{
    kiapi::board::types::BoardTextBox boardText;
    Serialize( boardText );
    aContainer.PackFrom( boardText );
}
 
 
bool PCB_TEXTBOX::Deserialize( const kiapi::board::types::BoardTextBox& boardText )
{
    using namespace kiapi::board;
 
 
    SetUuidDirect( KIID( boardText.id().value() ) );
    SetLayer( FromProtoEnum<PCB_LAYER_ID, types::BoardLayer>( boardText.layer() ) );
    SetLocked( boardText.locked() == kiapi::common::types::LockedState::LS_LOCKED );
 
    const kiapi::common::types::TextBox& text = boardText.textbox();
 
    SetPosition( kiapi::common::UnpackVector2( text.top_left() ) );
    SetEnd( kiapi::common::UnpackVector2( text.bottom_right() ) );
    SetText( wxString( text.text().c_str(), wxConvUTF8 ) );
 
    if( text.has_attributes() )
    {
        TEXT_ATTRIBUTES attrs = GetAttributes();
        kiapi::common::UnpackTextAttributes( attrs, text.attributes() );
        SetAttributes( attrs );
 
        // Handles setting shape to rectangle or polygon
        SetTextAngle( attrs.m_Angle );
    }
 
    if( text.has_margin_left() )
        SetMarginLeft( text.margin_left().value_nm() );
    if( text.has_margin_top() )
        SetMarginTop( text.margin_top().value_nm() );
    if( text.has_margin_right() )
        SetMarginRight( text.margin_right().value_nm() );
    if( text.has_margin_bottom() )
        SetMarginBottom( text.margin_bottom().value_nm() );
 
    SetBorderEnabled( text.border_enabled() );
    SetIsKnockout( boardText.knockout() );
 
    kiapi::common::UnpackCustomProperties( boardText.custom_properties(), *this );
 
    return true;
}
 
 
bool PCB_TEXTBOX::Deserialize( const google::protobuf::Any& aContainer )
{
    kiapi::board::types::BoardTextBox boardText;
 
    if( !aContainer.UnpackTo( &boardText ) )
        return false;
 
    return Deserialize( boardText );
}
 
 
void PCB_TEXTBOX::StyleFromSettings( const BOARD_DESIGN_SETTINGS& settings, bool aCheckSide )
{
    PCB_SHAPE::StyleFromSettings( settings, aCheckSide );
 
    SetTextSize( settings.GetTextSize( GetLayer() ) );
    SetTextThickness( settings.GetTextThickness( GetLayer() ) );
    SetItalic( settings.GetTextItalic( GetLayer() ) );
 
    if( GetParentFootprint() )
        SetKeepUpright( settings.GetTextUpright( GetLayer() ) );
 
    if( aCheckSide )
    {
        if( BOARD* board = GetBoard() )
            SetMirrored( board->IsBackLayer( GetLayer() ) );
        else
            SetMirrored( IsBackLayer( GetLayer() ) );
    }
}
 
 
int PCB_TEXTBOX::GetLegacyTextMargin() const
{
    return KiROUND( GetStroke().GetWidth() / 2.0 ) + KiROUND( GetTextSize().y * 0.75 );
}
 
 
VECTOR2I PCB_TEXTBOX::GetMinSize() const
{
    if( GetText().IsEmpty() )
        return VECTOR2I( 0, 0 );
 
    BOX2I textBox = GetTextBox( nullptr );
 
    int textHeight = std::abs( textBox.GetHeight() );
 
    if( GetTextAngle().IsHorizontal() )
        textHeight += GetMarginTop() + GetMarginBottom();
    else
        textHeight += GetMarginLeft() + GetMarginRight();
 
    // Only enforce minimum height. Width returns 0 so the user can freely shrink width
    // (text rewraps) while height is constrained to fit the wrapped text content.
    // GetTextBox returns dimensions in text-local coordinates. For 90/270 degree rotations,
    // the text's natural height maps to screen x-axis.
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_90 || rotation == ANGLE_270 )
        return VECTOR2I( textHeight, 0 );
 
    return VECTOR2I( 0, textHeight );
}
 
 
void PCB_TEXTBOX::SetShape( SHAPE_T aShape )
{
    EDA_SHAPE::SetShape( aShape );
    m_libShape = aShape;
}
 
 
std::vector<VECTOR2I> PCB_TEXTBOX::GetCorners() const
{
    return GetCornersInSequence( GetDrawRotation() );
}
 
 
std::vector<VECTOR2I> PCB_TEXTBOX::GetCornersInSequence( EDA_ANGLE angle ) const
{
    if( m_shape != SHAPE_T::RECTANGLE )
        return EDA_SHAPE::GetCornersInSequence( angle );
 
    const int left = std::min( m_start.x, m_end.x );
    const int right = std::max( m_start.x, m_end.x );
    const int top = std::min( m_start.y, m_end.y );
    const int bottom = std::max( m_start.y, m_end.y );
 
    const VECTOR2I center( ( left + right ) / 2, ( top + bottom ) / 2 );
 
    std::vector<VECTOR2I> pts = {
        VECTOR2I( left, top ),
        VECTOR2I( right, top ),
        VECTOR2I( right, bottom ),
        VECTOR2I( left, bottom ),
    };
 
    angle.Normalize();
 
    if( !angle.IsZero() )
    {
        for( VECTOR2I& p : pts )
            RotatePoint( p, center, angle );
    }
 
    return pts;
}
 
 
VECTOR2I PCB_TEXTBOX::GetTopLeft() const
{
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_90 )
        return VECTOR2I( GetStartX(), GetEndY() );
    else if( rotation == ANGLE_180 )
        return GetEnd();
    else if( rotation == ANGLE_270 )
        return VECTOR2I( GetEndX(), GetStartY() );
    else
        return GetStart();
}
 
 
VECTOR2I PCB_TEXTBOX::GetBotRight() const
{
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_90 )
        return VECTOR2I( GetEndX(), GetStartY() );
    else if( rotation == ANGLE_180 )
        return GetStart();
    else if( rotation == ANGLE_270 )
        return VECTOR2I( GetStartX(), GetEndY() );
    else
        return GetEnd();
}
 
 
void PCB_TEXTBOX::SetTop( int aVal )
{
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_90 || rotation == ANGLE_180 )
        SetEndY( aVal );
    else
        SetStartY( aVal );
}
 
 
void PCB_TEXTBOX::SetBottom( int aVal )
{
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_90 || rotation == ANGLE_180 )
        SetStartY( aVal );
    else
        SetEndY( aVal );
}
 
 
void PCB_TEXTBOX::SetLeft( int aVal )
{
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_180 || rotation == ANGLE_270 )
        SetEndX( aVal );
    else
        SetStartX( aVal );
}
 
 
void PCB_TEXTBOX::SetRight( int aVal )
{
    EDA_ANGLE rotation = GetDrawRotation();
 
    if( rotation == ANGLE_180 || rotation == ANGLE_270 )
        SetStartX( aVal );
    else
        SetEndX( aVal );
}
 
 
EDA_ANGLE PCB_TEXTBOX::GetTextAngle() const
{
    if( const FOOTPRINT* fp = GetParentFootprint() )
        return m_libTextAngle + fp->GetOrientation();
 
    return m_libTextAngle;
}
 
 
void PCB_TEXTBOX::SetTextAngle( const EDA_ANGLE& aAngle )
{
    EDA_ANGLE delta = aAngle.Normalized() - GetTextAngle();
    Rotate( GetPosition(), delta );
}
 
 
VECTOR2I PCB_TEXTBOX::GetDrawPos() const
{
    return GetDrawPos( false );
}
 
 
VECTOR2I PCB_TEXTBOX::GetDrawPos( bool aIsFlipped ) const
{
    EDA_ANGLE             drawAngle = GetDrawRotation();
    std::vector<VECTOR2I> corners = GetCornersInSequence( drawAngle );
    GR_TEXT_H_ALIGN_T     horizontalAlignment = GetHorizJustify();
    GR_TEXT_V_ALIGN_T     verticalAlignment = GetVertJustify();
    VECTOR2I              textAnchor;
    VECTOR2I              offset;
 
    // Calculate midpoints
    VECTOR2I midTop = ( corners[0] + corners[1] ) / 2;
    VECTOR2I midBottom = ( corners[3] + corners[2] ) / 2;
    VECTOR2I midLeft = ( corners[0] + corners[3] ) / 2;
    VECTOR2I midRight = ( corners[1] + corners[2] ) / 2;
    VECTOR2I center = ( corners[0] + corners[1] + corners[2] + corners[3] ) / 4;
 
    if( IsMirrored() != aIsFlipped )
    {
        switch( GetHorizJustify() )
        {
        case GR_TEXT_H_ALIGN_LEFT: horizontalAlignment = GR_TEXT_H_ALIGN_RIGHT; break;
        case GR_TEXT_H_ALIGN_CENTER: horizontalAlignment = GR_TEXT_H_ALIGN_CENTER; break;
        case GR_TEXT_H_ALIGN_RIGHT: horizontalAlignment = GR_TEXT_H_ALIGN_LEFT; break;
        case GR_TEXT_H_ALIGN_INDETERMINATE: horizontalAlignment = GR_TEXT_H_ALIGN_INDETERMINATE; break;
        }
    }
 
    wxASSERT_MSG( horizontalAlignment != GR_TEXT_H_ALIGN_INDETERMINATE
                          && verticalAlignment != GR_TEXT_V_ALIGN_INDETERMINATE,
                  wxS( "Indeterminate state legal only in dialogs. Horizontal and vertical alignment "
                       "must be set before calling PCB_TEXTBOX::GetDrawPos." ) );
 
    if( horizontalAlignment == GR_TEXT_H_ALIGN_INDETERMINATE || verticalAlignment == GR_TEXT_V_ALIGN_INDETERMINATE )
    {
        return center;
    }
 
    if( horizontalAlignment == GR_TEXT_H_ALIGN_LEFT && verticalAlignment == GR_TEXT_V_ALIGN_TOP )
    {
        textAnchor = corners[0];
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_CENTER && verticalAlignment == GR_TEXT_V_ALIGN_TOP )
    {
        textAnchor = midTop;
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_RIGHT && verticalAlignment == GR_TEXT_V_ALIGN_TOP )
    {
        textAnchor = corners[1];
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_LEFT && verticalAlignment == GR_TEXT_V_ALIGN_CENTER )
    {
        textAnchor = midLeft;
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_CENTER && verticalAlignment == GR_TEXT_V_ALIGN_CENTER )
    {
        textAnchor = center;
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_RIGHT && verticalAlignment == GR_TEXT_V_ALIGN_CENTER )
    {
        textAnchor = midRight;
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_LEFT && verticalAlignment == GR_TEXT_V_ALIGN_BOTTOM )
    {
        textAnchor = corners[3];
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_CENTER && verticalAlignment == GR_TEXT_V_ALIGN_BOTTOM )
    {
        textAnchor = midBottom;
    }
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_RIGHT && verticalAlignment == GR_TEXT_V_ALIGN_BOTTOM )
    {
        textAnchor = corners[2];
    }
 
    int marginLeft = GetMarginLeft();
    int marginRight = GetMarginRight();
    int marginTop = GetMarginTop();
    int marginBottom = GetMarginBottom();
 
    if( horizontalAlignment == GR_TEXT_H_ALIGN_LEFT )
        offset.x = marginLeft;
    else if( horizontalAlignment == GR_TEXT_H_ALIGN_RIGHT )
        offset.x = -marginRight;
 
    if( verticalAlignment == GR_TEXT_V_ALIGN_TOP )
        offset.y = marginTop;
    else if( verticalAlignment == GR_TEXT_V_ALIGN_BOTTOM )
        offset.y = -marginBottom;
 
    RotatePoint( offset, GetDrawRotation() );
    return textAnchor + offset;
}
 
 
double PCB_TEXTBOX::ViewGetLOD( int aLayer, const KIGFX::VIEW* aView ) const
{
    KIGFX::PCB_PAINTER&         painter = static_cast<KIGFX::PCB_PAINTER&>( *aView->GetPainter() );
    KIGFX::PCB_RENDER_SETTINGS& renderSettings = *painter.GetSettings();
 
    if( aLayer == LAYER_LOCKED_ITEM_SHADOW )
    {
        // Hide shadow if the main layer is not shown
        if( !aView->IsLayerVisibleCached( m_layer ) )
            return LOD_HIDE;
 
        // Hide shadow on dimmed tracks
        if( renderSettings.GetHighContrast() )
        {
            if( m_layer != renderSettings.GetPrimaryHighContrastLayer() )
                return LOD_HIDE;
        }
    }
 
    return LOD_SHOW;
}
 
 
std::vector<int> PCB_TEXTBOX::ViewGetLayers() const
{
    if( IsLocked() || ( GetParentFootprint() && GetParentFootprint()->IsLocked() ) )
        return { GetLayer(), LAYER_LOCKED_ITEM_SHADOW };
 
    return { GetLayer() };
}
 
 
wxString PCB_TEXTBOX::GetShownText( RESOLUTION_CONTEXT aContext, int aDepth ) const
{
    const FOOTPRINT* parentFootprint = GetParentFootprint();
    const BOARD*     board = GetBoard();
 
    std::function<bool( wxString* )> resolver =
            [&]( wxString* token ) -> bool
            {
                if( token->IsSameAs( wxT( "LAYER" ) ) )
                {
                    *token = GetLayerName();
                    return true;
                }
 
                if( parentFootprint && parentFootprint->ResolveTextVar( token, aDepth + 1 ) )
                    return true;
 
                if( board->ResolveTextVar( token, aDepth + 1 ) )
                    return true;
 
                return false;
            };
 
    wxString text = EDA_TEXT::GetShownText( aContext, aDepth );
 
    if( HasTextVars() && aContext != RAW_VALUE )
    {
        text = ResolveTextVars( text, &resolver, aDepth );
        FinalizeTextVarExpansion( text, aContext );
    }
 
    KIFONT::FONT*         font = GetDrawFont( nullptr );
    EDA_ANGLE             drawAngle = GetDrawRotation();
    std::vector<VECTOR2I> corners = GetCornersInSequence( drawAngle );
    int                   colWidth = ( corners[1] - corners[0] ).EuclideanNorm();
 
    if( GetTextAngle().IsHorizontal() )
        colWidth -= ( GetMarginLeft() + GetMarginRight() );
    else
        colWidth -= ( GetMarginTop() + GetMarginBottom() );
 
    font->LinebreakText( text, colWidth, GetTextSize(), GetEffectiveTextPenWidth(), IsBold(), IsItalic() );
 
    return text;
}
 
 
bool PCB_TEXTBOX::Matches( const EDA_SEARCH_DATA& aSearchData, void* aAuxData ) const
{
    return BOARD_ITEM::Matches( UnescapeString( GetText() ), aSearchData );
}
 
 
void PCB_TEXTBOX::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
    // Don't use GetShownText() here; we want to show the user the variable references
    aList.emplace_back( _( "Text Box" ), KIUI::EllipsizeStatusText( aFrame, GetText() ) );
 
    if( aFrame->GetName() == PCB_EDIT_FRAME_NAME && 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", GetTextAngle().AsDegrees() ) );
 
    aList.emplace_back( _( "Font" ), GetFont() ? GetFont()->GetName() : _( "Default" ) );
 
    if( GetTextThickness() )
        aList.emplace_back( _( "Text Thickness" ), aFrame->MessageTextFromValue( GetEffectiveTextPenWidth() ) );
    else
        aList.emplace_back( _( "Text Thickness" ), _( "Auto" ) );
 
    aList.emplace_back( _( "Text Width" ), aFrame->MessageTextFromValue( GetTextWidth() ) );
    aList.emplace_back( _( "Text Height" ), aFrame->MessageTextFromValue( GetTextHeight() ) );
 
    aList.emplace_back( _( "Box Width" ), aFrame->MessageTextFromValue( std::abs( GetEnd().x - GetStart().x ) ) );
 
    aList.emplace_back( _( "Box Height" ), aFrame->MessageTextFromValue( std::abs( GetEnd().y - GetStart().y ) ) );
 
    m_stroke.GetMsgPanelInfo( aFrame, aList );
}
 
 
void PCB_TEXTBOX::Move( const VECTOR2I& aMoveVector )
{
    PCB_SHAPE::Move( aMoveVector );
    EDA_TEXT::Offset( aMoveVector );
}
 
 
VECTOR2I PCB_TEXTBOX::GetTextSize() const
{
    VECTOR2I libSize = EDA_TEXT::GetTextSize();
 
    if( const FOOTPRINT* fp = GetParentFootprint() )
    {
        const TRANSFORM_TRS& xf = fp->GetTransform();
        return { KiROUND( libSize.x * std::abs( xf.GetScaleX() ) ), KiROUND( libSize.y * std::abs( xf.GetScaleY() ) ) };
    }
 
    return libSize;
}
 
 
void PCB_TEXTBOX::SetTextSize( VECTOR2I aNewSize, bool aEnforceMinTextSize )
{
    if( const FOOTPRINT* fp = GetParentFootprint() )
    {
        const TRANSFORM_TRS& xf = fp->GetTransform();
        aNewSize = { KiROUND( aNewSize.x / std::abs( xf.GetScaleX() ) ),
                     KiROUND( aNewSize.y / std::abs( xf.GetScaleY() ) ) };
    }
 
    EDA_TEXT::SetTextSize( aNewSize, aEnforceMinTextSize );
}
 
 
int PCB_TEXTBOX::GetTextThickness() const
{
    int libThickness = EDA_TEXT::GetTextThickness();
 
    if( const FOOTPRINT* fp = GetParentFootprint() )
    {
        const TRANSFORM_TRS& xf = fp->GetTransform();
        const double         factor = ( std::abs( xf.GetScaleX() ) + std::abs( xf.GetScaleY() ) ) * 0.5;
        return KiROUND( libThickness * factor );
    }
 
    return libThickness;
}
 
 
void PCB_TEXTBOX::SetTextThickness( int aWidth )
{
    if( const FOOTPRINT* fp = GetParentFootprint() )
    {
        const TRANSFORM_TRS& xf = fp->GetTransform();
        const double         factor = ( std::abs( xf.GetScaleX() ) + std::abs( xf.GetScaleY() ) ) * 0.5;
        aWidth = KiROUND( aWidth / factor );
    }
 
    EDA_TEXT::SetTextThickness( aWidth );
}
 
 
void PCB_TEXTBOX::Rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle )
{
    // Slide the axis-aligned box, rotation lives in the text angle.
    const VECTOR2D oldCenter( ( m_start.x + m_end.x ) * 0.5, ( m_start.y + m_end.y ) * 0.5 );
    VECTOR2D       newCenter = oldCenter;
    RotatePoint( newCenter, VECTOR2D( aRotCentre.x, aRotCentre.y ), aAngle );
 
    const VECTOR2I delta( KiROUND( newCenter.x - oldCenter.x ), KiROUND( newCenter.y - oldCenter.y ) );
    EDA_SHAPE::SetStart( m_start + delta );
    EDA_SHAPE::SetEnd( m_end + delta );
 
    syncLibCoords();
 
    EDA_ANGLE newAbs = ( GetTextAngle() + aAngle ).Normalize();
    EDA_TEXT::SetTextAngle( newAbs );
 
    if( const FOOTPRINT* fp = GetParentFootprint() )
        m_libTextAngle = newAbs - fp->GetOrientation();
    else
        m_libTextAngle = newAbs;
 
    m_libTextAngle.Normalize();
}
 
 
void PCB_TEXTBOX::Mirror( const VECTOR2I& aCentre, FLIP_DIRECTION aFlipDirection )
{
    // the position and angle are mirrored, but not the text (or its justification)
    PCB_SHAPE::Mirror( aCentre, aFlipDirection );
 
    if( aFlipDirection == FLIP_DIRECTION::LEFT_RIGHT )
        m_libTextAngle = ANGLE_180 - m_libTextAngle;
    else
        m_libTextAngle = -m_libTextAngle;
 
    m_libTextAngle.Normalize();
    EDA_TEXT::SetTextAngle( GetTextAngle() );
}
 
 
void PCB_TEXTBOX::Flip( const VECTOR2I& aCentre, FLIP_DIRECTION aFlipDirection )
{
    PCB_SHAPE::Flip( aCentre, aFlipDirection );
 
    if( aFlipDirection == FLIP_DIRECTION::LEFT_RIGHT )
        m_libTextAngle = -m_libTextAngle;
    else
        m_libTextAngle = ANGLE_180 - m_libTextAngle;
 
    m_libTextAngle.Normalize();
    EDA_TEXT::SetTextAngle( GetTextAngle() );
 
    if( IsSideSpecific() )
        SetMirrored( !IsMirrored() );
}
 
 
void PCB_TEXTBOX::OnFootprintTransformed()
{
    if( const FOOTPRINT* fp = GetParentFootprint(); fp && GetLibraryShape() == SHAPE_T::RECTANGLE )
    {
        const TRANSFORM_TRS& xform = fp->GetTransform();
        m_shape = SHAPE_T::RECTANGLE;
 
        const VECTOR2I libCenter( ( m_libStart.x + m_libEnd.x ) / 2, ( m_libStart.y + m_libEnd.y ) / 2 );
        const int      libHalfW = std::abs( m_libEnd.x - m_libStart.x ) / 2;
        const int      libHalfH = std::abs( m_libEnd.y - m_libStart.y ) / 2;
 
        const VECTOR2I newCenter = xform.Apply( libCenter );
        const int      newHalfW = std::abs( KiROUND( libHalfW * xform.GetScaleX() ) );
        const int      newHalfH = std::abs( KiROUND( libHalfH * xform.GetScaleY() ) );
 
        EDA_SHAPE::SetStart( VECTOR2I( newCenter.x - newHalfW, newCenter.y - newHalfH ) );
        EDA_SHAPE::SetEnd( VECTOR2I( newCenter.x + newHalfW, newCenter.y + newHalfH ) );
    }
    else
    {
        PCB_SHAPE::OnFootprintTransformed();
    }
 
    EDA_TEXT::SetTextAngle( GetTextAngle() );
    ClearRenderCache();
    ClearBoundingBoxCache();
}
 
 
void PCB_TEXTBOX::syncLibCoords()
{
    const FOOTPRINT* fp = GetParentFootprint();
 
    // Only the axis-aligned rectangle case needs the textbox-specific inverse.
    // Poly textboxes and standalone (non-FP) boxes use the base shape mapping.
    if( !fp || GetShape() != SHAPE_T::RECTANGLE )
    {
        PCB_SHAPE::syncLibCoords();
        return;
    }
 
    const TRANSFORM_TRS& xform = fp->GetTransform();
 
    const VECTOR2I boardCenter( ( m_start.x + m_end.x ) / 2, ( m_start.y + m_end.y ) / 2 );
    const int      boardHalfW = std::abs( m_end.x - m_start.x ) / 2;
    const int      boardHalfH = std::abs( m_end.y - m_start.y ) / 2;
 
    const VECTOR2I libCenter = xform.InverseApply( boardCenter );
    const int      libHalfW = std::abs( KiROUND( boardHalfW / xform.GetScaleX() ) );
    const int      libHalfH = std::abs( KiROUND( boardHalfH / xform.GetScaleY() ) );
 
    m_libStart = VECTOR2I( libCenter.x - libHalfW, libCenter.y - libHalfH );
    m_libEnd = VECTOR2I( libCenter.x + libHalfW, libCenter.y + libHalfH );
}
 
 
void PCB_TEXTBOX::OnFootprintRescaled( double aRatioX, double aRatioY, double aLinearFactor, const VECTOR2I& aAnchor,
                                       const EDA_ANGLE& aParentRotate )
{
    OnFootprintTransformed();
}
 
 
const BOX2I PCB_TEXTBOX::GetBoundingBox() const
{
    BOX2I bbox;
 
    for( const VECTOR2I& pt : GetCorners() )
        bbox.Merge( pt );
 
    bbox.Inflate( std::max( 0, GetWidth() ) / 2 );
    bbox.Normalize();
 
    return bbox;
}
 
 
bool PCB_TEXTBOX::HitTest( const VECTOR2I& aPosition, int aAccuracy ) const
{
    BOX2I rect = GetBoundingBox();
 
    rect.Inflate( aAccuracy );
 
    return rect.Contains( aPosition );
}
 
 
bool PCB_TEXTBOX::HitTest( const BOX2I& aRect, bool aContained, int aAccuracy ) const
{
    BOX2I rect = aRect;
 
    rect.Inflate( aAccuracy );
 
    if( aContained )
        return rect.Contains( GetBoundingBox() );
 
    return rect.Intersects( GetBoundingBox() );
}
 
 
bool PCB_TEXTBOX::HitTest( const SHAPE_LINE_CHAIN& aPoly, bool aContained ) const
{
    return PCB_SHAPE::HitTest( aPoly, aContained );
}
 
 
wxString PCB_TEXTBOX::GetItemDescription( UNITS_PROVIDER* aUnitsProvider, bool aFull ) const
{
    return wxString::Format( _( "PCB text box '%s' on %s" ),
                             aFull ? GetShownText( FOR_GUI ) : KIUI::EllipsizeMenuText( GetText() ),
                             GetLayerName() );
}
 
 
BITMAPS PCB_TEXTBOX::GetMenuImage() const
{
    return BITMAPS::add_textbox;
}
 
 
EDA_ITEM* PCB_TEXTBOX::Clone() const
{
    return new PCB_TEXTBOX( *this );
}
 
 
void PCB_TEXTBOX::swapData( BOARD_ITEM* aImage )
{
    wxASSERT( aImage->Type() == PCB_TEXTBOX_T );
 
    std::swap( *( (PCB_TEXTBOX*) this ), *( (PCB_TEXTBOX*) aImage ) );
}
 
 
std::shared_ptr<SHAPE> PCB_TEXTBOX::GetEffectiveShape( PCB_LAYER_ID aLayer, FLASHING aFlash,
                                                       DRC_CONSTRAINT_T aUsage ) const
{
    std::shared_ptr<SHAPE_COMPOUND> shape = GetEffectiveTextShape();
 
    if( PCB_SHAPE::GetStroke().GetWidth() >= 0 )
        shape->AddShape( PCB_SHAPE::GetEffectiveShape( aLayer, aFlash, aUsage ) );
 
    return shape;
}
 
 
void PCB_TEXTBOX::TransformTextToPolySet( SHAPE_POLY_SET& aBuffer, int aClearance, int aMaxError,
                                          ERROR_LOC aErrorLoc ) const
{
    KIGFX::GAL_DISPLAY_OPTIONS empty_opts;
    KIFONT::FONT*              font = GetDrawFont( nullptr );
    int                        penWidth = GetEffectiveTextPenWidth();
    TEXT_ATTRIBUTES            attrs = GetAttributes();
    wxString                   shownText = GetShownText( FOR_CANVAS );
 
    // The polygonal shape of a text can have many basic shapes, so combining these shapes can
    // be very useful to create a final shape with a lot less vertices to speedup calculations.
    // Simplify shapes is not usually always efficient, but in this case it is.
    SHAPE_POLY_SET textShape;
 
    CALLBACK_GAL callback_gal(
            empty_opts,
            // Stroke callback
            [&]( const VECTOR2I& aPt1, const VECTOR2I& aPt2 )
            {
                TransformOvalToPolygon( textShape, aPt1, aPt2, penWidth, aMaxError, aErrorLoc );
            },
            // Triangulation callback
            [&]( const VECTOR2I& aPt1, const VECTOR2I& aPt2, const VECTOR2I& aPt3 )
            {
                textShape.NewOutline();
 
                for( const VECTOR2I& point : { aPt1, aPt2, aPt3 } )
                    textShape.Append( point.x, point.y );
            } );
 
    if( auto* cache = GetRenderCache( font, shownText ) )
        callback_gal.DrawGlyphs( *cache );
    else
        font->Draw( &callback_gal, shownText, GetDrawPos(), attrs, GetFontMetrics() );
 
    textShape.Simplify();
 
    if( IsKnockout() )
    {
        SHAPE_POLY_SET finalPoly;
 
        TransformShapeToPolygon( finalPoly, GetLayer(), aClearance, aMaxError, aErrorLoc );
        finalPoly.BooleanSubtract( textShape );
 
        aBuffer.Append( finalPoly );
    }
    else
    {
        if( aClearance > 0 || aErrorLoc == ERROR_OUTSIDE )
        {
            if( aErrorLoc == ERROR_OUTSIDE )
                aClearance += aMaxError;
 
            textShape.Inflate( aClearance, CORNER_STRATEGY::ROUND_ALL_CORNERS, aMaxError, true );
        }
 
        aBuffer.Append( textShape );
    }
}
 
 
void PCB_TEXTBOX::TransformShapeToPolygon( SHAPE_POLY_SET& aBuffer, PCB_LAYER_ID aLayer, int aClearance, int aMaxError,
                                           ERROR_LOC aErrorLoc, bool aIgnoreLineWidth ) const
{
    // Don't use PCB_SHAPE::TransformShapeToPolygon.  We want to treat the textbox as filled even
    // if there's no background colour.
 
    int width = GetWidth() + ( 2 * aClearance );
 
    if( GetShape() == SHAPE_T::RECTANGLE )
    {
        std::vector<VECTOR2I> pts = GetRectCorners();
 
        aBuffer.NewOutline();
 
        for( const VECTOR2I& pt : pts )
            aBuffer.Append( pt );
 
        if( m_borderEnabled && width > 0 )
        {
            // Add in segments
            TransformOvalToPolygon( aBuffer, pts[0], pts[1], width, aMaxError, aErrorLoc );
            TransformOvalToPolygon( aBuffer, pts[1], pts[2], width, aMaxError, aErrorLoc );
            TransformOvalToPolygon( aBuffer, pts[2], pts[3], width, aMaxError, aErrorLoc );
            TransformOvalToPolygon( aBuffer, pts[3], pts[0], width, aMaxError, aErrorLoc );
        }
    }
    else if( GetShape() == SHAPE_T::POLY ) // Non-cardinally-rotated rect
    {
        aBuffer.NewOutline();
 
        const SHAPE_LINE_CHAIN& poly = GetPolyShape().Outline( 0 );
 
        for( int ii = 0; ii < poly.PointCount(); ++ii )
            aBuffer.Append( poly.GetPoint( ii ) );
 
        if( m_borderEnabled && width > 0 )
        {
            for( int ii = 0; ii < poly.SegmentCount(); ++ii )
            {
                const SEG& seg = poly.GetSegment( ii );
                TransformOvalToPolygon( aBuffer, seg.A, seg.B, width, aMaxError, aErrorLoc );
            }
        }
    }
}
 
 
bool PCB_TEXTBOX::IsBorderEnabled() const
{
    return m_borderEnabled;
}
 
 
void PCB_TEXTBOX::SetBorderEnabled( bool enabled )
{
    m_borderEnabled = enabled;
}
 
 
void PCB_TEXTBOX::SetBorderWidth( const int aSize )
{
    m_stroke.SetWidth( aSize );
}
 
 
bool PCB_TEXTBOX::operator==( const BOARD_ITEM& aBoardItem ) const
{
    if( aBoardItem.Type() != Type() )
        return false;
 
    const PCB_TEXTBOX& other = static_cast<const PCB_TEXTBOX&>( aBoardItem );
 
    return *this == other;
}
 
 
bool PCB_TEXTBOX::operator==( const PCB_TEXTBOX& aOther ) const
{
    return m_borderEnabled == aOther.m_borderEnabled && EDA_TEXT::operator==( aOther );
}
 
 
double PCB_TEXTBOX::Similarity( const BOARD_ITEM& aBoardItem ) const
{
    if( aBoardItem.Type() != Type() )
        return 0.0;
 
    const PCB_TEXTBOX& other = static_cast<const PCB_TEXTBOX&>( aBoardItem );
 
    double similarity = 1.0;
 
    if( m_borderEnabled != other.m_borderEnabled )
        similarity *= 0.9;
 
    if( GetMarginLeft() != other.GetMarginLeft() )
        similarity *= 0.9;
 
    if( GetMarginTop() != other.GetMarginTop() )
        similarity *= 0.9;
 
    if( GetMarginRight() != other.GetMarginRight() )
        similarity *= 0.9;
 
    if( GetMarginBottom() != other.GetMarginBottom() )
        similarity *= 0.9;
 
    similarity *= EDA_TEXT::Similarity( other );
 
    return similarity;
}
 
 
static struct PCB_TEXTBOX_DESC
{
    PCB_TEXTBOX_DESC()
    {
        ENUM_MAP<LINE_STYLE>& lineStyleEnum = ENUM_MAP<LINE_STYLE>::Instance();
 
        if( lineStyleEnum.Choices().GetCount() == 0 )
        {
            lineStyleEnum.Map( LINE_STYLE::SOLID, _HKI( "Solid" ) )
                    .Map( LINE_STYLE::DASH, _HKI( "Dashed" ) )
                    .Map( LINE_STYLE::DOT, _HKI( "Dotted" ) )
                    .Map( LINE_STYLE::DASHDOT, _HKI( "Dash-Dot" ) )
                    .Map( LINE_STYLE::DASHDOTDOT, _HKI( "Dash-Dot-Dot" ) );
        }
 
        PROPERTY_MANAGER& propMgr = PROPERTY_MANAGER::Instance();
        REGISTER_TYPE( PCB_TEXTBOX );
        propMgr.AddTypeCast( new TYPE_CAST<PCB_TEXTBOX, PCB_SHAPE> );
        propMgr.AddTypeCast( new TYPE_CAST<PCB_TEXTBOX, EDA_SHAPE> );
        propMgr.AddTypeCast( new TYPE_CAST<PCB_TEXTBOX, EDA_TEXT> );
        propMgr.InheritsAfter( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( PCB_SHAPE ) );
        propMgr.InheritsAfter( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ) );
        propMgr.InheritsAfter( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_TEXT ) );
 
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Shape" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Start X" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Start Y" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "End X" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "End Y" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Width" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Height" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Line Width" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Line Style" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Filled" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Line Color" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_SHAPE ), _HKI( "Corner Radius" ) );
 
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_TEXT ), _HKI( "Color" ) );
 
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( PCB_SHAPE ), _HKI( "Soldermask" ) );
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( PCB_SHAPE ), _HKI( "Soldermask Margin Override" ) );
 
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, bool, BOARD_ITEM>( _HKI( "Knockout" ),
                    &BOARD_ITEM::SetIsKnockout, &BOARD_ITEM::IsKnockout ),
                    _HKI( "Text Properties" ) ).SetIsCopyable();
 
        const wxString borderProps = _( "Border Properties" );
 
        void ( PCB_TEXTBOX::*lineStyleSetter )( LINE_STYLE ) = &PCB_TEXTBOX::SetLineStyle;
        LINE_STYLE ( PCB_TEXTBOX::*lineStyleGetter )() const = &PCB_TEXTBOX::GetLineStyle;
 
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, bool>( _HKI( "Border" ),
                    &PCB_TEXTBOX::SetBorderEnabled, &PCB_TEXTBOX::IsBorderEnabled ),
                    borderProps ).SetIsCopyable();
 
        propMgr.AddProperty( new PROPERTY_ENUM<PCB_TEXTBOX, LINE_STYLE>( _HKI( "Border Style" ),
                    lineStyleSetter, lineStyleGetter ),
                    borderProps ).SetIsCopyable();
 
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, int>( _HKI( "Border Width" ),
                    &PCB_TEXTBOX::SetBorderWidth, &PCB_TEXTBOX::GetBorderWidth, PROPERTY_DISPLAY::PT_SIZE ),
                    borderProps ).SetIsCopyable();
 
        const wxString marginProps = _( "Margins" );
 
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, int>( _HKI( "Margin Left" ),
                    &PCB_TEXTBOX::SetMarginLeft, &PCB_TEXTBOX::GetMarginLeft, PROPERTY_DISPLAY::PT_SIZE ),
                    marginProps ).SetIsCopyable();
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, int>( _HKI( "Margin Top" ),
                    &PCB_TEXTBOX::SetMarginTop, &PCB_TEXTBOX::GetMarginTop, PROPERTY_DISPLAY::PT_SIZE ),
                    marginProps ).SetIsCopyable();
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, int>( _HKI( "Margin Right" ),
                    &PCB_TEXTBOX::SetMarginRight, &PCB_TEXTBOX::GetMarginRight, PROPERTY_DISPLAY::PT_SIZE ),
                    marginProps ).SetIsCopyable();
        propMgr.AddProperty( new PROPERTY<PCB_TEXTBOX, int>( _HKI( "Margin Bottom" ),
                    &PCB_TEXTBOX::SetMarginBottom, &PCB_TEXTBOX::GetMarginBottom, PROPERTY_DISPLAY::PT_SIZE ),
                    marginProps ).SetIsCopyable();
 
        propMgr.Mask( TYPE_HASH( PCB_TEXTBOX ), TYPE_HASH( EDA_TEXT ), _HKI( "Hyperlink" ) );
    }
} _PCB_TEXTBOX_DESC;