sch_text.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2015 Wayne Stambaugh <[email protected]>
 * Copyright (C) 1992-2021 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 <sch_symbol.h>
#include <sch_edit_frame.h>
#include <plotters/plotter.h>
#include <widgets/msgpanel.h>
#include <gal/stroke_font.h>
#include <bitmaps.h>
#include <string_utils.h>
#include <sch_text.h>
#include <schematic.h>
#include <settings/color_settings.h>
#include <sch_painter.h>
#include <default_values.h>
#include <wx/debug.h>
#include <wx/log.h>
#include <dialogs/html_message_box.h>
#include <project/project_file.h>
#include <project/net_settings.h>
#include <core/mirror.h>
#include <core/kicad_algo.h>
#include <trigo.h>

using KIGFX::SCH_RENDER_SETTINGS;


bool IncrementLabelMember( wxString& name, int aIncrement )
{
 if( name.IsEmpty() )
 return true;

 wxString suffix;
 wxString digits;
 wxString outputFormat;
 wxString outputNumber;
 int ii = name.Len() - 1;
 int dCount = 0;

 while( ii >= 0 && !wxIsdigit( name.GetChar( ii ) ) )
 {
 suffix = name.GetChar( ii ) + suffix;
 ii--;
 }

 while( ii >= 0 && wxIsdigit( name.GetChar( ii ) ) )
 {
 digits = name.GetChar( ii ) + digits;
 ii--;
 dCount++;
 }

 if( digits.IsEmpty() )
 return true;

 long number = 0;

 if( digits.ToLong( &number ) )
 {
 number += aIncrement;

 // Don't let result go below zero

 if( number > -1 )
 {
 name.Remove( ii + 1 );
 //write out a format string with correct number of leading zeroes
 outputFormat.Printf( "%%0%dd", dCount );
 //write out the number using the format string
 outputNumber.Printf( outputFormat, number );
 name << outputNumber << suffix;
 return true;
 }
 }

 return false;
}


/* Coding polygons for global symbol graphic shapes.
 * the first parml is the number of corners
 * others are the corners coordinates in reduced units
 * the real coordinate is the reduced coordinate * text half size
 */
static int TemplateIN_HN[] = { 6, 0, 0, -1, -1, -2, -1, -2, 1, -1, 1, 0, 0 };
static int TemplateIN_HI[] = { 6, 0, 0, 1, 1, 2, 1, 2, -1, 1, -1, 0, 0 };
static int TemplateIN_UP[] = { 6, 0, 0, 1, -1, 1, -2, -1, -2, -1, -1, 0, 0 };
static int TemplateIN_BOTTOM[] = { 6, 0, 0, 1, 1, 1, 2, -1, 2, -1, 1, 0, 0 };

static int TemplateOUT_HN[] = { 6, -2, 0, -1, 1, 0, 1, 0, -1, -1, -1, -2, 0 };
static int TemplateOUT_HI[] = { 6, 2, 0, 1, -1, 0, -1, 0, 1, 1, 1, 2, 0 };
static int TemplateOUT_UP[] = { 6, 0, -2, 1, -1, 1, 0, -1, 0, -1, -1, 0, -2 };
static int TemplateOUT_BOTTOM[] = { 6, 0, 2, 1, 1, 1, 0, -1, 0, -1, 1, 0, 2 };

static int TemplateUNSPC_HN[] = { 5, 0, -1, -2, -1, -2, 1, 0, 1, 0, -1 };
static int TemplateUNSPC_HI[] = { 5, 0, -1, 2, -1, 2, 1, 0, 1, 0, -1 };
static int TemplateUNSPC_UP[] = { 5, 1, 0, 1, -2, -1, -2, -1, 0, 1, 0 };
static int TemplateUNSPC_BOTTOM[] = { 5, 1, 0, 1, 2, -1, 2, -1, 0, 1, 0 };

static int TemplateBIDI_HN[] = { 5, 0, 0, -1, -1, -2, 0, -1, 1, 0, 0 };
static int TemplateBIDI_HI[] = { 5, 0, 0, 1, -1, 2, 0, 1, 1, 0, 0 };
static int TemplateBIDI_UP[] = { 5, 0, 0, -1, -1, 0, -2, 1, -1, 0, 0 };
static int TemplateBIDI_BOTTOM[] = { 5, 0, 0, -1, 1, 0, 2, 1, 1, 0, 0 };

static int Template3STATE_HN[] = { 5, 0, 0, -1, -1, -2, 0, -1, 1, 0, 0 };
static int Template3STATE_HI[] = { 5, 0, 0, 1, -1, 2, 0, 1, 1, 0, 0 };
static int Template3STATE_UP[] = { 5, 0, 0, -1, -1, 0, -2, 1, -1, 0, 0 };
static int Template3STATE_BOTTOM[] = { 5, 0, 0, -1, 1, 0, 2, 1, 1, 0, 0 };

static int* TemplateShape[5][4] =
{
 { TemplateIN_HN, TemplateIN_UP, TemplateIN_HI, TemplateIN_BOTTOM },
 { TemplateOUT_HN, TemplateOUT_UP, TemplateOUT_HI, TemplateOUT_BOTTOM },
 { TemplateBIDI_HN, TemplateBIDI_UP, TemplateBIDI_HI, TemplateBIDI_BOTTOM },
 { Template3STATE_HN, Template3STATE_UP, Template3STATE_HI, Template3STATE_BOTTOM },
 { TemplateUNSPC_HN, TemplateUNSPC_UP, TemplateUNSPC_HI, TemplateUNSPC_BOTTOM }
};


LABEL_SPIN_STYLE LABEL_SPIN_STYLE::RotateCW()
{
 SPIN newSpin = m_spin;

 switch( m_spin )
 {
 case LABEL_SPIN_STYLE::LEFT: newSpin = LABEL_SPIN_STYLE::UP; break;
 case LABEL_SPIN_STYLE::UP: newSpin = LABEL_SPIN_STYLE::RIGHT; break;
 case LABEL_SPIN_STYLE::RIGHT: newSpin = LABEL_SPIN_STYLE::BOTTOM; break;
 case LABEL_SPIN_STYLE::BOTTOM: newSpin = LABEL_SPIN_STYLE::LEFT; break;
 default: wxLogWarning( "RotateCW encountered unknown current spin style" ); break;
 }

 return LABEL_SPIN_STYLE( newSpin );
}


LABEL_SPIN_STYLE LABEL_SPIN_STYLE::RotateCCW()
{
 SPIN newSpin = m_spin;

 switch( m_spin )
 {
 case LABEL_SPIN_STYLE::LEFT: newSpin = LABEL_SPIN_STYLE::BOTTOM; break;
 case LABEL_SPIN_STYLE::BOTTOM: newSpin = LABEL_SPIN_STYLE::RIGHT; break;
 case LABEL_SPIN_STYLE::RIGHT: newSpin = LABEL_SPIN_STYLE::UP; break;
 case LABEL_SPIN_STYLE::UP: newSpin = LABEL_SPIN_STYLE::LEFT; break;
 default: wxLogWarning( "RotateCCW encountered unknown current spin style" ); break;
 }

 return LABEL_SPIN_STYLE( newSpin );
}


LABEL_SPIN_STYLE LABEL_SPIN_STYLE::MirrorX()
{
 SPIN newSpin = m_spin;

 switch( m_spin )
 {
 case LABEL_SPIN_STYLE::UP: newSpin = LABEL_SPIN_STYLE::BOTTOM; break;
 case LABEL_SPIN_STYLE::BOTTOM: newSpin = LABEL_SPIN_STYLE::UP; break;
 case LABEL_SPIN_STYLE::LEFT: break;
 case LABEL_SPIN_STYLE::RIGHT: break;
 default: wxLogWarning( "MirrorX encountered unknown current spin style" ); break;
 }

 return LABEL_SPIN_STYLE( newSpin );
}


LABEL_SPIN_STYLE LABEL_SPIN_STYLE::MirrorY()
{
 SPIN newSpin = m_spin;

 switch( m_spin )
 {
 case LABEL_SPIN_STYLE::LEFT: newSpin = LABEL_SPIN_STYLE::RIGHT; break;
 case LABEL_SPIN_STYLE::RIGHT: newSpin = LABEL_SPIN_STYLE::LEFT; break;
 case LABEL_SPIN_STYLE::UP: break;
 case LABEL_SPIN_STYLE::BOTTOM: break;
 default: wxLogWarning( "MirrorY encountered unknown current spin style" ); break;
 }

 return LABEL_SPIN_STYLE( newSpin );
}


SCH_TEXT::SCH_TEXT( const wxPoint& pos, const wxString& text, KICAD_T aType ) :
 SCH_ITEM( nullptr, aType ),
 EDA_TEXT( text ),
 m_shape( PINSHEETLABEL_SHAPE::PS_INPUT ),
 m_isDangling( false ),
 m_connectionType( CONNECTION_TYPE::NONE )
{
 m_layer = LAYER_NOTES;

 SetTextPos( pos );
 SetLabelSpinStyle( LABEL_SPIN_STYLE::LEFT );
 SetMultilineAllowed( true );
}


SCH_TEXT::SCH_TEXT( const SCH_TEXT& aText ) :
 SCH_ITEM( aText ),
 EDA_TEXT( aText ),
 m_shape( aText.m_shape ),
 m_isDangling( aText.m_isDangling ),
 m_connectionType( aText.m_connectionType ),
 m_spin_style( aText.m_spin_style )
{ }


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


bool SCH_TEXT::IncrementLabel( int aIncrement )
{
 wxString text = GetText();
 bool ReturnVal = IncrementLabelMember( text, aIncrement );

 if( ReturnVal )
 SetText( text );

 return ReturnVal;
}


wxPoint SCH_TEXT::GetSchematicTextOffset( const RENDER_SETTINGS* aSettings ) const
{
 wxPoint text_offset;

 // add an offset to x (or y) position to aid readability of text on a wire or line
 int dist = GetTextOffset( aSettings ) + GetPenWidth();

 switch( GetLabelSpinStyle() )
 {
 case LABEL_SPIN_STYLE::UP:
 case LABEL_SPIN_STYLE::BOTTOM:
 text_offset.x = -dist;
 break; // Vert Orientation
 default:
 case LABEL_SPIN_STYLE::LEFT:
 case LABEL_SPIN_STYLE::RIGHT:
 text_offset.y = -dist;
 break; // Horiz Orientation
 }

 return text_offset;
}


void SCH_TEXT::MirrorHorizontally( int aCenter )
{
 // Text is NOT really mirrored; it is moved to a suitable horizontal position
 SetLabelSpinStyle( GetLabelSpinStyle().MirrorY() );

 SetTextX( MIRRORVAL( GetTextPos().x, aCenter ) );
}


void SCH_TEXT::MirrorVertically( int aCenter )
{
 // Text is NOT really mirrored; it is moved to a suitable vertical position
 SetLabelSpinStyle( GetLabelSpinStyle().MirrorX() );

 SetTextY( MIRRORVAL( GetTextPos().y, aCenter ) );
}


void SCH_TEXT::Rotate( const wxPoint& aCenter )
{
 wxPoint pt = GetTextPos();
 RotatePoint( &pt, aCenter, 900 );
 wxPoint offset = pt - GetTextPos();

 Rotate90( false );

 SetTextPos( GetTextPos() + offset );
}


void SCH_TEXT::Rotate90( bool aClockwise )
{
 if( aClockwise )
 SetLabelSpinStyle( GetLabelSpinStyle().RotateCW() );
 else
 SetLabelSpinStyle( GetLabelSpinStyle().RotateCCW() );
}


void SCH_TEXT::MirrorSpinStyle( bool aLeftRight )
{
 if( aLeftRight )
 SetLabelSpinStyle( GetLabelSpinStyle().MirrorY() );
 else
 SetLabelSpinStyle( GetLabelSpinStyle().MirrorX() );
}


void SCH_TEXT::SetLabelSpinStyle( LABEL_SPIN_STYLE aSpinStyle )
{
 m_spin_style = aSpinStyle;

 // Assume "Right" and Left" mean which side of the anchor the text will be on
 // Thus we want to left justify text up against the anchor if we are on the right
 switch( aSpinStyle )
 {
 default:
 wxASSERT_MSG( 1, "Bad spin style" );
 break;

 case LABEL_SPIN_STYLE::RIGHT: // Horiz Normal Orientation
 //
 m_spin_style = LABEL_SPIN_STYLE::RIGHT; // Handle the error spin style by resetting
 SetTextAngle( TEXT_ANGLE_HORIZ );
 SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
 break;

 case LABEL_SPIN_STYLE::UP: // Vert Orientation UP
 SetTextAngle( TEXT_ANGLE_VERT );
 SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
 break;

 case LABEL_SPIN_STYLE::LEFT: // Horiz Orientation - Right justified
 SetTextAngle( TEXT_ANGLE_HORIZ );
 SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
 break;

 case LABEL_SPIN_STYLE::BOTTOM: // Vert Orientation BOTTOM
 SetTextAngle( TEXT_ANGLE_VERT );
 SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
 break;
 }
}


void SCH_TEXT::SwapData( SCH_ITEM* aItem )
{
 SCH_TEXT* item = (SCH_TEXT*) aItem;

 std::swap( m_layer, item->m_layer );

 std::swap( m_shape, item->m_shape );
 std::swap( m_isDangling, item->m_isDangling );
 std::swap( m_spin_style, item->m_spin_style );

 SwapText( *item );
 SwapEffects( *item );
}


bool SCH_TEXT::operator<( const SCH_ITEM& aItem ) const
{
 if( Type() != aItem.Type() )
 return Type() < aItem.Type();

 auto other = static_cast<const SCH_TEXT*>( &aItem );

 if( GetLayer() != other->GetLayer() )
 return GetLayer() < other->GetLayer();

 if( GetPosition().x != other->GetPosition().x )
 return GetPosition().x < other->GetPosition().x;

 if( GetPosition().y != other->GetPosition().y )
 return GetPosition().y < other->GetPosition().y;

 return GetText() < other->GetText();
}


int SCH_TEXT::GetTextOffset( const RENDER_SETTINGS* aSettings ) const
{
 double ratio;

 if( aSettings )
 ratio = static_cast<const SCH_RENDER_SETTINGS*>( aSettings )->m_TextOffsetRatio;
 else if( Schematic() )
 ratio = Schematic()->Settings().m_TextOffsetRatio;
 else
 ratio = DEFAULT_TEXT_OFFSET_RATIO; // For previews (such as in Preferences), etc.

 return KiROUND( ratio * GetTextSize().y );

 return 0;
}


int SCH_TEXT::GetLabelBoxExpansion( const RENDER_SETTINGS* aSettings ) const
{
 double ratio;

 if( aSettings )
 ratio = static_cast<const SCH_RENDER_SETTINGS*>( aSettings )->m_LabelSizeRatio;
 else if( Schematic() )
 ratio = Schematic()->Settings().m_LabelSizeRatio;
 else
 ratio = DEFAULT_LABEL_SIZE_RATIO; // For previews (such as in Preferences), etc.

 return KiROUND( ratio * GetTextSize().y );

 return 0;
}


int SCH_TEXT::GetPenWidth() const
{
 return GetEffectiveTextPenWidth();
}


void SCH_TEXT::Print( const RENDER_SETTINGS* aSettings, const wxPoint& aOffset )
{
 COLOR4D color = aSettings->GetLayerColor( m_layer );
 wxPoint text_offset = aOffset + GetSchematicTextOffset( aSettings );

 EDA_TEXT::Print( aSettings, text_offset, color );
}


void SCH_TEXT::GetEndPoints( std::vector <DANGLING_END_ITEM>& aItemList )
{
 // Normal text labels cannot be tested for dangling ends.
 if( Type() == SCH_TEXT_T )
 return;

 DANGLING_END_ITEM item( LABEL_END, this, GetTextPos() );
 aItemList.push_back( item );
}


bool SCH_TEXT::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aItemList,
 const SCH_SHEET_PATH* aPath )
{
 // Normal text labels cannot be tested for dangling ends.
 if( Type() == SCH_TEXT_T )
 return false;

 bool previousState = m_isDangling;
 m_isDangling = true;
 m_connectionType = CONNECTION_TYPE::NONE;

 for( unsigned ii = 0; ii < aItemList.size(); ii++ )
 {
 DANGLING_END_ITEM& item = aItemList[ii];

 if( item.GetItem() == this )
 continue;

 switch( item.GetType() )
 {
 case PIN_END:
 case LABEL_END:
 case SHEET_LABEL_END:
 case NO_CONNECT_END:
 if( GetTextPos() == item.GetPosition() )
 {
 m_isDangling = false;

 if( aPath && item.GetType() != PIN_END )
 m_connected_items[ *aPath ].insert( static_cast<SCH_ITEM*>( item.GetItem() ) );
 }

 break;

 case BUS_END:
 m_connectionType = CONNECTION_TYPE::BUS;
 KI_FALLTHROUGH;

 case WIRE_END:
 {
 DANGLING_END_ITEM& nextItem = aItemList[++ii];

 int accuracy = 1; // We have rounding issues with an accuracy of 0

 m_isDangling = !TestSegmentHit( GetTextPos(), item.GetPosition(),
 nextItem.GetPosition(), accuracy );

 if( !m_isDangling )
 {
 if( m_connectionType != CONNECTION_TYPE::BUS )
 m_connectionType = CONNECTION_TYPE::NET;

 // Add the line to the connected items, since it won't be picked
 // up by a search of intersecting connection points
 if( aPath )
 {
 auto sch_item = static_cast<SCH_ITEM*>( item.GetItem() );
 AddConnectionTo( *aPath, sch_item );
 sch_item->AddConnectionTo( *aPath, this );
 }
 }
 }
 break;

 default:
 break;
 }

 if( !m_isDangling )
 break;
 }

 if( m_isDangling )
 m_connectionType = CONNECTION_TYPE::NONE;

 return previousState != m_isDangling;
}


std::vector<wxPoint> SCH_TEXT::GetConnectionPoints() const
{
 // Normal text labels do not have connection points. All others do.
 if( Type() == SCH_TEXT_T )
 return {};

 return { GetTextPos() };
}


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

 if( GetTextAngle() != 0 ) // Rotate rect.
 {
 wxPoint pos = rect.GetOrigin();
 wxPoint end = rect.GetEnd();

 RotatePoint( &pos, GetTextPos(), GetTextAngle() );
 RotatePoint( &end, GetTextPos(), GetTextAngle() );

 rect.SetOrigin( pos );
 rect.SetEnd( end );
 }

 rect.Normalize();
 return rect;
}


wxString getElectricalTypeLabel( PINSHEETLABEL_SHAPE aType )
{
 switch( aType )
 {
 case PINSHEETLABEL_SHAPE::PS_INPUT: return _( "Input" );
 case PINSHEETLABEL_SHAPE::PS_OUTPUT: return _( "Output" );
 case PINSHEETLABEL_SHAPE::PS_BIDI: return _( "Bidirectional" );
 case PINSHEETLABEL_SHAPE::PS_TRISTATE: return _( "Tri-State" );
 case PINSHEETLABEL_SHAPE::PS_UNSPECIFIED: return _( "Passive" );
 default: return wxT( "???" );
 }
}


void SCH_TEXT::GetContextualTextVars( wxArrayString* aVars ) const
{
 if( Type() == SCH_GLOBAL_LABEL_T || Type() == SCH_HIER_LABEL_T || Type() == SCH_SHEET_PIN_T )
 aVars->push_back( wxT( "CONNECTION_TYPE" ) );

 if( Type() == SCH_SHEET_PIN_T && m_parent )
 static_cast<SCH_SHEET*>( m_parent )->GetContextualTextVars( aVars );
}


wxString SCH_TEXT::GetShownText( int aDepth ) const
{
 std::function<bool( wxString* )> textResolver =
 [&]( wxString* token ) -> bool
 {
 if( ( Type() == SCH_GLOBAL_LABEL_T
 || Type() == SCH_HIER_LABEL_T
 || Type() == SCH_SHEET_PIN_T )
 && token->IsSameAs( wxT( "CONNECTION_TYPE" ) ) )
 {
 *token = getElectricalTypeLabel( GetShape() );
 return true;
 }

 if( Type() == SCH_SHEET_PIN_T && m_parent )
 {
 SCH_SHEET* sheet = static_cast<SCH_SHEET*>( m_parent );

 if( sheet->ResolveTextVar( token, aDepth ) )
 return true;
 }

 if( Type() == SCH_TEXT_T )
 {
 if( token->Contains( ':' ) )
 {
 if( Schematic()->ResolveCrossReference( token, aDepth ) )
 return true;
 }
 else
 {
 SCHEMATIC* schematic = Schematic();
 SCH_SHEET* sheet = schematic ? schematic->CurrentSheet().Last() : nullptr;

 if( sheet && sheet->ResolveTextVar( token, aDepth + 1 ) )
 return true;
 }
 }

 return false;
 };

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

 wxString text = EDA_TEXT::GetShownText();

 if( text == "~" ) // Legacy placeholder for empty string
 {
 text = "";
 }
 else if( HasTextVars() )
 {
 wxCHECK_MSG( Schematic(), wxEmptyString, "No parent SCHEMATIC set for SCH_TEXT!" );

 PROJECT* project = nullptr;

 if( Schematic() )
 project = &Schematic()->Prj();

 if( aDepth < 10 )
 text = ExpandTextVars( text, &textResolver, &schematicTextResolver, project );
 }

 return text;
}


wxString SCH_TEXT::GetSelectMenuText( EDA_UNITS aUnits ) const
{
 return wxString::Format( _( "Graphic Text '%s'" ), ShortenedShownText() );
}


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


bool SCH_TEXT::HitTest( const wxPoint& aPosition, int aAccuracy ) const
{
 EDA_RECT bBox = GetBoundingBox();
 bBox.Inflate( aAccuracy );
 return bBox.Contains( aPosition );
}


bool SCH_TEXT::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
{
 EDA_RECT bBox = GetBoundingBox();
 bBox.Inflate( aAccuracy );

 if( aContained )
 return aRect.Contains( bBox );

 return aRect.Intersects( bBox );
}


void SCH_TEXT::Plot( PLOTTER* aPlotter ) const
{
 static std::vector<wxPoint> s_poly;

 RENDER_SETTINGS* settings = aPlotter->RenderSettings();
 SCH_CONNECTION* connection = Connection();
 int layer = ( connection && connection->IsBus() ) ? LAYER_BUS : m_layer;
 COLOR4D color = settings->GetLayerColor( layer );
 int penWidth = GetEffectiveTextPenWidth( settings->GetDefaultPenWidth() );

 penWidth = std::max( penWidth, settings->GetMinPenWidth() );
 aPlotter->SetCurrentLineWidth( penWidth );

 if( IsMultilineAllowed() )
 {
 std::vector<wxPoint> positions;
 wxArrayString strings_list;
 wxStringSplit( GetShownText(), strings_list, '\n' );
 positions.reserve( strings_list.Count() );

 GetLinePositions( positions, (int) strings_list.Count() );

 for( unsigned ii = 0; ii < strings_list.Count(); ii++ )
 {
 wxPoint textpos = positions[ii] + GetSchematicTextOffset( aPlotter->RenderSettings() );
 wxString& txt = strings_list.Item( ii );
 aPlotter->Text( textpos, color, txt, GetTextAngle(), GetTextSize(), GetHorizJustify(),
 GetVertJustify(), penWidth, IsItalic(), IsBold() );
 }
 }
 else
 {
 wxPoint textpos = GetTextPos() + GetSchematicTextOffset( aPlotter->RenderSettings() );

 aPlotter->Text( textpos, color, GetShownText(), GetTextAngle(), GetTextSize(),
 GetHorizJustify(), GetVertJustify(), penWidth, IsItalic(), IsBold() );
 }

 // Draw graphic symbol for global or hierarchical labels
 CreateGraphicShape( aPlotter->RenderSettings(), s_poly, GetTextPos() );

 if( s_poly.size() )
 aPlotter->PlotPoly( s_poly, FILL_T::NO_FILL, penWidth );
}


void SCH_TEXT::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
 wxString msg;

 switch( Type() )
 {
 case SCH_TEXT_T: msg = _( "Graphic Text" ); break;
 case SCH_LABEL_T: msg = _( "Label" ); break;
 case SCH_GLOBAL_LABEL_T: msg = _( "Global Label" ); break;
 case SCH_HIER_LABEL_T: msg = _( "Hierarchical Label" ); break;
 case SCH_SHEET_PIN_T: msg = _( "Hierarchical Sheet Pin" ); break;
 default: return;
 }

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

 // Display electrical type if it is relevant
 if( Type() == SCH_GLOBAL_LABEL_T || Type() == SCH_HIER_LABEL_T || Type() == SCH_SHEET_PIN_T )
 aList.emplace_back( _( "Type" ), getElectricalTypeLabel( GetShape() ) );

 wxString textStyle[] = { _( "Normal" ), _( "Italic" ), _( "Bold" ), _( "Bold Italic" ) };
 int style = 0;

 if( IsItalic() )
 style = 1;

 if( IsBold() )
 style += 2;

 aList.emplace_back( _( "Style" ), textStyle[style] );

 aList.emplace_back( _( "Text Size" ), MessageTextFromValue( aFrame->GetUserUnits(),
 GetTextWidth() ) );

 switch( GetLabelSpinStyle() )
 {
 case LABEL_SPIN_STYLE::LEFT: msg = _( "Align right" ); break;
 case LABEL_SPIN_STYLE::UP: msg = _( "Align bottom" ); break;
 case LABEL_SPIN_STYLE::RIGHT: msg = _( "Align left" ); break;
 case LABEL_SPIN_STYLE::BOTTOM: msg = _( "Align top" ); break;
 default: msg = wxT( "???" ); break;
 }

 aList.emplace_back( _( "Justification" ), msg );

 SCH_CONNECTION* conn = nullptr;

 if( !IsConnectivityDirty() && dynamic_cast<SCH_EDIT_FRAME*>( aFrame ) )
 conn = Connection();

 if( conn )
 {
 conn->AppendInfoToMsgPanel( aList );

 if( !conn->IsBus() )
 {
 NET_SETTINGS& netSettings = Schematic()->Prj().GetProjectFile().NetSettings();
 const wxString& netname = conn->Name( true );

 if( netSettings.m_NetClassAssignments.count( netname ) )
 {
 const wxString& netclassName = netSettings.m_NetClassAssignments[ netname ];
 aList.emplace_back( _( "Assigned Netclass" ), netclassName );
 }
 }
 }
}


#if defined(DEBUG)

void SCH_TEXT::Show( int nestLevel, std::ostream& os ) const
{
 // XML output:
 wxString s = GetClass();

 NestedSpace( nestLevel, os ) << '<' << s.Lower().mb_str()
 << " layer=\"" << m_layer << '"'
 << " shape=\"" << static_cast<int>( m_shape ) << '"'
 << " dangling=\"" << m_isDangling << '"'
 << '>'
 << TO_UTF8( GetText() )
 << "</" << s.Lower().mb_str() << ">\n";
}

#endif


SCH_LABEL::SCH_LABEL( const wxPoint& pos, const wxString& text )
 : SCH_TEXT( pos, text, SCH_LABEL_T )
{
 m_layer = LAYER_LOCLABEL;
 m_shape = PINSHEETLABEL_SHAPE::PS_INPUT;
 m_isDangling = true;
 SetMultilineAllowed( false );
}


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


bool SCH_LABEL::IsType( const KICAD_T aScanTypes[] ) const
{
 static KICAD_T wireTypes[] = { SCH_LINE_LOCATE_WIRE_T, SCH_PIN_T, EOT };
 static KICAD_T busTypes[] = { SCH_LINE_LOCATE_BUS_T, EOT };

 if( SCH_ITEM::IsType( aScanTypes ) )
 return true;

 wxCHECK_MSG( Schematic(), false, "No parent SCHEMATIC set for SCH_LABEL!" );

 SCH_SHEET_PATH current = Schematic()->CurrentSheet();

 for( const KICAD_T* p = aScanTypes; *p != EOT; ++p )
 {
 if( *p == SCH_LABEL_LOCATE_WIRE_T )
 {
 wxASSERT( m_connected_items.count( current ) );

 for( SCH_ITEM* connection : m_connected_items.at( current ) )
 {
 if( connection->IsType( wireTypes ) )
 return true;
 }
 }
 else if ( *p == SCH_LABEL_LOCATE_BUS_T )
 {
 wxASSERT( m_connected_items.count( current ) );

 for( SCH_ITEM* connection : m_connected_items.at( current ) )
 {
 if( connection->IsType( busTypes ) )
 return true;
 }
 }
 }

 return false;
}


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

 rect.Offset( 0, -GetTextOffset() );

 if( GetTextAngle() != 0.0 )
 {
 // Rotate rect
 wxPoint pos = rect.GetOrigin();
 wxPoint end = rect.GetEnd();

 RotatePoint( &pos, GetTextPos(), GetTextAngle() );
 RotatePoint( &end, GetTextPos(), GetTextAngle() );

 rect.SetOrigin( pos );
 rect.SetEnd( end );

 rect.Normalize();
 }

 // Labels have a position point that is outside of the TextBox
 rect.Merge( GetPosition() );

 return rect;
}


void SCH_TEXT::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 0;

 if( m_layer != LAYER_NOTES )
 aLayers[ aCount++ ] = LAYER_DANGLING;

 aLayers[ aCount++ ] = m_layer;
 aLayers[ aCount++ ] = LAYER_SELECTION_SHADOWS;
}


wxString SCH_LABEL::GetSelectMenuText( EDA_UNITS aUnits ) const
{
 return wxString::Format( _( "Label '%s'" ), ShortenedShownText() );
}


BITMAPS SCH_LABEL::GetMenuImage() const
{
 return BITMAPS::add_line_label;
}


SCH_GLOBALLABEL::SCH_GLOBALLABEL( const wxPoint& pos, const wxString& text ) :
 SCH_TEXT( pos, text, SCH_GLOBAL_LABEL_T ),
 m_intersheetRefsField( { 0, 0 }, 0, this )
{
 m_layer = LAYER_GLOBLABEL;
 m_shape = PINSHEETLABEL_SHAPE::PS_BIDI;
 m_isDangling = true;
 SetMultilineAllowed( false );

 SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );

 m_intersheetRefsField.SetText( wxT( "${INTERSHEET_REFS}" ) );
 m_intersheetRefsField.SetLayer( LAYER_GLOBLABEL );
 m_intersheetRefsField.SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
 m_fieldsAutoplaced = FIELDS_AUTOPLACED_AUTO;
}


SCH_GLOBALLABEL::SCH_GLOBALLABEL( const SCH_GLOBALLABEL& aGlobalLabel ) :
 SCH_TEXT( aGlobalLabel ),
 m_intersheetRefsField( { 0, 0 }, 0, this )
{
 m_intersheetRefsField = aGlobalLabel.m_intersheetRefsField;

 // Re-parent the fields, which before this had aGlobalLabel as parent
 m_intersheetRefsField.SetParent( this );

 m_fieldsAutoplaced = aGlobalLabel.m_fieldsAutoplaced;
}


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


void SCH_GLOBALLABEL::SwapData( SCH_ITEM* aItem )
{
 SCH_TEXT::SwapData( aItem );

 SCH_GLOBALLABEL* globalLabel = static_cast<SCH_GLOBALLABEL*>( aItem );

 // Swap field data wholesale...
 std::swap( m_intersheetRefsField, globalLabel->m_intersheetRefsField );

 // ...and then reset parent pointers.
 globalLabel->m_intersheetRefsField.SetParent( globalLabel );
 m_intersheetRefsField.SetParent( this );
}


SEARCH_RESULT SCH_GLOBALLABEL::Visit( INSPECTOR aInspector, void* testData,
 const KICAD_T aFilterTypes[] )
{
 KICAD_T stype;

 for( const KICAD_T* p = aFilterTypes; (stype = *p) != EOT; ++p )
 {
 // If caller wants to inspect my type
 if( stype == SCH_LOCATE_ANY_T || stype == Type() )
 {
 if( SEARCH_RESULT::QUIT == aInspector( this, nullptr ) )
 return SEARCH_RESULT::QUIT;
 }

 if( stype == SCH_LOCATE_ANY_T || stype == SCH_FIELD_T )
 {
 if( SEARCH_RESULT::QUIT == aInspector( GetIntersheetRefs(), this ) )
 return SEARCH_RESULT::QUIT;
 }
 }

 return SEARCH_RESULT::CONTINUE;
}


void SCH_GLOBALLABEL::RunOnChildren( const std::function<void( SCH_ITEM* )>& aFunction )
{
 aFunction( &m_intersheetRefsField );
}


wxPoint SCH_GLOBALLABEL::GetSchematicTextOffset( const RENDER_SETTINGS* aSettings ) const
{
 int horiz = GetLabelBoxExpansion( aSettings );

 // Center the text on the center line of "E" instead of "R" to make room for an overbar
 int vert = GetTextHeight() * 0.0715;

 switch( m_shape )
 {
 case PINSHEETLABEL_SHAPE::PS_INPUT:
 case PINSHEETLABEL_SHAPE::PS_BIDI:
 case PINSHEETLABEL_SHAPE::PS_TRISTATE:
 horiz += GetTextHeight() * 3 / 4; // Use three-quarters-height as proxy for triangle size
 break;

 case PINSHEETLABEL_SHAPE::PS_OUTPUT:
 case PINSHEETLABEL_SHAPE::PS_UNSPECIFIED:
 default:
 break;
 }

 switch( GetLabelSpinStyle() )
 {
 default:
 case LABEL_SPIN_STYLE::LEFT: return wxPoint( -horiz, vert );
 case LABEL_SPIN_STYLE::UP: return wxPoint( vert, -horiz );
 case LABEL_SPIN_STYLE::RIGHT: return wxPoint( horiz, vert );
 case LABEL_SPIN_STYLE::BOTTOM: return wxPoint( vert, horiz );
 }
}


void SCH_GLOBALLABEL::SetLabelSpinStyle( LABEL_SPIN_STYLE aSpinStyle )
{
 m_spin_style = aSpinStyle;

 switch( aSpinStyle )
 {
 default:
 wxASSERT_MSG( 1, "Bad spin style" );
 m_spin_style = LABEL_SPIN_STYLE::RIGHT;
 KI_FALLTHROUGH;

 case LABEL_SPIN_STYLE::RIGHT: // Horiz Normal Orientation
 SetTextAngle( TEXT_ANGLE_HORIZ );
 SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 break;

 case LABEL_SPIN_STYLE::UP: // Vert Orientation UP
 SetTextAngle( TEXT_ANGLE_VERT );
 SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 break;

 case LABEL_SPIN_STYLE::LEFT: // Horiz Orientation
 SetTextAngle( TEXT_ANGLE_HORIZ );
 SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 break;

 case LABEL_SPIN_STYLE::BOTTOM: // Vert Orientation BOTTOM
 SetTextAngle( TEXT_ANGLE_VERT );
 SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 break;
 }
}


void SCH_GLOBALLABEL::Rotate( const wxPoint& aCenter )
{
 wxPoint pt = GetTextPos();
 RotatePoint( &pt, aCenter, 900 );
 wxPoint offset = pt - GetTextPos();

 Rotate90( false );

 SetTextPos( GetTextPos() + offset );
 m_intersheetRefsField.SetTextPos( m_intersheetRefsField.GetTextPos() + offset );
}


void SCH_GLOBALLABEL::Rotate90( bool aClockwise )
{
 SCH_TEXT::Rotate90( aClockwise );

 if( m_intersheetRefsField.GetTextAngle() == TEXT_ANGLE_VERT
 && m_intersheetRefsField.GetHorizJustify() == GR_TEXT_HJUSTIFY_LEFT )
 {
 if( !aClockwise )
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );

 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_HORIZ );
 }
 else if( m_intersheetRefsField.GetTextAngle() == TEXT_ANGLE_VERT
 && m_intersheetRefsField.GetHorizJustify() == GR_TEXT_HJUSTIFY_RIGHT )
 {
 if( !aClockwise )
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );

 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_HORIZ );
 }
 else if( m_intersheetRefsField.GetTextAngle() == TEXT_ANGLE_HORIZ
 && m_intersheetRefsField.GetHorizJustify() == GR_TEXT_HJUSTIFY_LEFT )
 {
 if( aClockwise )
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );

 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_VERT );
 }
 else if( m_intersheetRefsField.GetTextAngle() == TEXT_ANGLE_HORIZ
 && m_intersheetRefsField.GetHorizJustify() == GR_TEXT_HJUSTIFY_RIGHT )
 {
 if( aClockwise )
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );

 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_VERT );
 }

 wxPoint pos = m_intersheetRefsField.GetTextPos();
 RotatePoint( &pos, GetPosition(), aClockwise ? -900 : 900 );
 m_intersheetRefsField.SetTextPos( pos );
}


void SCH_GLOBALLABEL::MirrorSpinStyle( bool aLeftRight )
{
 SCH_TEXT::MirrorSpinStyle( aLeftRight );

 if( ( aLeftRight && m_intersheetRefsField.GetTextAngle() == TEXT_ANGLE_HORIZ )
 || ( !aLeftRight && m_intersheetRefsField.GetTextAngle() == TEXT_ANGLE_VERT ) )
 {
 if( m_intersheetRefsField.GetHorizJustify() == GR_TEXT_HJUSTIFY_LEFT )
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 else
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 }

 wxPoint pos = m_intersheetRefsField.GetTextPos();
 wxPoint delta = GetPosition() - pos;

 if( aLeftRight )
 pos.x = GetPosition().x + delta.x;
 else
 pos.y = GetPosition().y + delta.y;

 m_intersheetRefsField.SetTextPos( pos );
}


void SCH_GLOBALLABEL::MirrorHorizontally( int aCenter )
{
 wxPoint old_pos = GetPosition();
 SCH_TEXT::MirrorHorizontally( aCenter );

 if( m_intersheetRefsField.GetHorizJustify() == GR_TEXT_HJUSTIFY_LEFT )
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 else
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );

 wxPoint pos = m_intersheetRefsField.GetTextPos();
 wxPoint delta = old_pos - pos;
 pos.x = GetPosition().x + delta.x;

 m_intersheetRefsField.SetPosition( pos );
}


void SCH_GLOBALLABEL::MirrorVertically( int aCenter )
{
 wxPoint old_pos = GetPosition();
 SCH_TEXT::MirrorVertically( aCenter );
 wxPoint pos = m_intersheetRefsField.GetTextPos();
 wxPoint delta = old_pos - pos;
 pos.y = GetPosition().y + delta.y;

 m_intersheetRefsField.SetPosition( pos );
}


void SCH_GLOBALLABEL::UpdateIntersheetRefProps()
{
 m_intersheetRefsField.SetTextSize( GetTextSize() );
 m_intersheetRefsField.SetItalic( IsItalic() );
 m_intersheetRefsField.SetBold( IsBold() );
 m_intersheetRefsField.SetTextThickness( GetTextThickness() );

 if( m_fieldsAutoplaced == FIELDS_AUTOPLACED_AUTO )
 AutoplaceFields( nullptr, false );
}


void SCH_GLOBALLABEL::AutoplaceFields( SCH_SCREEN* aScreen, bool aManual )
{
 int margin = GetTextOffset() * 2;
 int labelLen = GetBoundingBoxBase().GetSizeMax();
 int penOffset = GetPenWidth() / 2;

 // Set both axes to penOffset; we're going to overwrite the text axis below
 wxPoint offset( -penOffset, -penOffset );

 switch( GetLabelSpinStyle() )
 {
 default:
 case LABEL_SPIN_STYLE::LEFT:
 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_HORIZ );
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 offset.x = - ( labelLen + margin / 2 );
 break;

 case LABEL_SPIN_STYLE::UP:
 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_VERT );
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 offset.y = - ( labelLen + margin / 2 );
 break;

 case LABEL_SPIN_STYLE::RIGHT:
 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_HORIZ );
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 offset.x = labelLen + margin /2 ;
 break;

 case LABEL_SPIN_STYLE::BOTTOM:
 m_intersheetRefsField.SetTextAngle( TEXT_ANGLE_VERT );
 m_intersheetRefsField.SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 offset.y = labelLen + margin / 2;
 break;
 }

 m_intersheetRefsField.SetTextPos( GetPosition() + offset );

 m_fieldsAutoplaced = FIELDS_AUTOPLACED_AUTO;
}


bool SCH_GLOBALLABEL::ResolveTextVar( wxString* token, int aDepth ) const
{
 if( token->IsSameAs( wxT( "INTERSHEET_REFS" ) ) && Schematic() )
 {
 SCHEMATIC_SETTINGS& settings = Schematic()->Settings();
 wxString ref;
 auto it = Schematic()->GetPageRefsMap().find( GetText() );

 if( it == Schematic()->GetPageRefsMap().end() )
 {
 ref = "?";
 }
 else
 {
 std::vector<wxString> pageListCopy;

 pageListCopy.insert( pageListCopy.end(), it->second.begin(), it->second.end() );
 std::sort( pageListCopy.begin(), pageListCopy.end(),
 []( const wxString& a, const wxString& b ) -> bool
 {
 return StrNumCmp( a, b, true ) < 0;
 } );

 if( !settings.m_IntersheetRefsListOwnPage )
 {
 wxString currentPage = Schematic()->CurrentSheet().GetPageNumber();
 alg::delete_matching( pageListCopy, currentPage );
 }

 if( ( settings.m_IntersheetRefsFormatShort ) && ( pageListCopy.size() > 2 ) )
 {
 ref.Append( wxString::Format( wxT( "%s..%s" ),
 pageListCopy.front(),
 pageListCopy.back() ) );
 }
 else
 {
 for( const wxString& pageNo : pageListCopy )
 ref.Append( wxString::Format( wxT( "%s," ), pageNo ) );

 if( !ref.IsEmpty() && ref.Last() == ',' )
 ref.RemoveLast();
 }
 }

 *token = settings.m_IntersheetRefsPrefix + ref + settings.m_IntersheetRefsSuffix;
 return true;
 }

 return false;
}


void SCH_GLOBALLABEL::Print( const RENDER_SETTINGS* aSettings, const wxPoint& aOffset )
{
 static std::vector<wxPoint> s_poly;

 SCH_CONNECTION* connection = Connection();
 int layer = ( connection && connection->IsBus() ) ? LAYER_BUS : m_layer;
 wxDC* DC = aSettings->GetPrintDC();
 COLOR4D color = aSettings->GetLayerColor( layer );
 int penWidth = std::max( GetPenWidth(), aSettings->GetDefaultPenWidth() );
 wxPoint text_offset = aOffset + GetSchematicTextOffset( aSettings );

 EDA_TEXT::Print( aSettings, text_offset, color );

 CreateGraphicShape( aSettings, s_poly, GetTextPos() + aOffset );
 GRPoly( nullptr, DC, s_poly.size(), &s_poly[0], false, penWidth, color, color );

 if( Schematic()->Settings().m_IntersheetRefsShow )
 m_intersheetRefsField.Print( aSettings, aOffset );
}


void SCH_GLOBALLABEL::Plot( PLOTTER* aPlotter ) const
{
 SCH_TEXT::Plot( aPlotter );

 bool show = Schematic()->Settings().m_IntersheetRefsShow;

 if ( show )
 m_intersheetRefsField.Plot( aPlotter );
}


void SCH_GLOBALLABEL::CreateGraphicShape( const RENDER_SETTINGS* aRenderSettings,
 std::vector<wxPoint>& aPoints, const wxPoint& Pos ) const
{
 int margin = GetLabelBoxExpansion( aRenderSettings );
 int halfSize = ( GetTextHeight() / 2 ) + margin;
 int linewidth = GetPenWidth();
 int symb_len = LenSize( GetShownText(), linewidth ) + 2 * margin;

 int x = symb_len + linewidth + 3;
 int y = halfSize + linewidth + 3;

 aPoints.clear();

 // Create outline shape : 6 points
 aPoints.emplace_back( wxPoint( 0, 0 ) );
 aPoints.emplace_back( wxPoint( 0, -y ) ); // Up
 aPoints.emplace_back( wxPoint( -x, -y ) ); // left
 aPoints.emplace_back( wxPoint( -x, 0 ) ); // Up left
 aPoints.emplace_back( wxPoint( -x, y ) ); // left down
 aPoints.emplace_back( wxPoint( 0, y ) ); // down

 int x_offset = 0;

 switch( m_shape )
 {
 case PINSHEETLABEL_SHAPE::PS_INPUT:
 x_offset = -halfSize;
 aPoints[0].x += halfSize;
 break;

 case PINSHEETLABEL_SHAPE::PS_OUTPUT:
 aPoints[3].x -= halfSize;
 break;

 case PINSHEETLABEL_SHAPE::PS_BIDI:
 case PINSHEETLABEL_SHAPE::PS_TRISTATE:
 x_offset = -halfSize;
 aPoints[0].x += halfSize;
 aPoints[3].x -= halfSize;
 break;

 case PINSHEETLABEL_SHAPE::PS_UNSPECIFIED:
 default:
 break;
 }

 int angle = 0;

 switch( GetLabelSpinStyle() )
 {
 default:
 case LABEL_SPIN_STYLE::LEFT: break;
 case LABEL_SPIN_STYLE::UP: angle = -900; break;
 case LABEL_SPIN_STYLE::RIGHT: angle = 1800; break;
 case LABEL_SPIN_STYLE::BOTTOM: angle = 900; break;
 }

 // Rotate outlines and move corners in real position
 for( wxPoint& aPoint : aPoints )
 {
 aPoint.x += x_offset;

 if( angle )
 RotatePoint( &aPoint, angle );

 aPoint += Pos;
 }

 aPoints.push_back( aPoints[0] ); // closing
}


const EDA_RECT SCH_GLOBALLABEL::GetBoundingBoxBase() const
{
 // build the bounding box on the global label only, without taking in account
 // the intersheets references, just the bounding box of the graphic shape
 int x = GetTextPos().x;
 int y = GetTextPos().y;
 int penWidth = GetEffectiveTextPenWidth();
 int margin = GetTextOffset();
 int height = ( ( GetTextHeight() * 15 ) / 10 ) + penWidth + margin;
 int length = LenSize( GetShownText(), penWidth )
 + height // add height for triangular shapes
 - margin; // margin added to height not needed here

 int dx, dy;

 switch( GetLabelSpinStyle() ) // respect orientation
 {
 default:
 case LABEL_SPIN_STYLE::LEFT:
 dx = -length;
 dy = height;
 y -= height / 2;
 break;

 case LABEL_SPIN_STYLE::UP:
 dx = height;
 dy = -length;
 x -= height / 2;
 break;

 case LABEL_SPIN_STYLE::RIGHT:
 dx = length;
 dy = height;
 y -= height / 2;
 break;

 case LABEL_SPIN_STYLE::BOTTOM:
 dx = height;
 dy = length;
 x -= height / 2;
 break;
 }

 EDA_RECT box( wxPoint( x, y ), wxSize( dx, dy ) );

 box.Normalize();
 return box;
}


const EDA_RECT SCH_GLOBALLABEL::GetBoundingBox() const
{
 // build the bounding box on the global label only, including the intersheets references
 // full bounding box if they are shown

 EDA_RECT box( GetBoundingBoxBase() );

 // Note: Schematic() can be null in preference preview panel
 if( Schematic() && Schematic()->Settings().m_IntersheetRefsShow )
 {
 box.Merge( m_intersheetRefsField.GetBoundingBox() );
 box.Normalize();
 }

 return box;
}


wxString SCH_GLOBALLABEL::GetSelectMenuText( EDA_UNITS aUnits ) const
{
 return wxString::Format( _( "Global Label '%s'" ), ShortenedShownText() );
}


BITMAPS SCH_GLOBALLABEL::GetMenuImage() const
{
 return BITMAPS::add_glabel;
}


bool SCH_GLOBALLABEL::HitTest( const wxPoint& aPosition, int aAccuracy ) const
{
 EDA_RECT bbox = GetBoundingBoxBase();
 bbox.Inflate( aAccuracy );

 if( !bbox.Contains( aPosition ) )
 {
 if( Schematic() && Schematic()->Settings().m_IntersheetRefsShow )
 {
 bbox = m_intersheetRefsField.GetBoundingBox();
 bbox.Inflate( aAccuracy );

 return bbox.Contains( aPosition );
 }

 return false;
 }

 return true;
}


bool SCH_GLOBALLABEL::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
{
 EDA_RECT bbox = GetBoundingBoxBase();

 if( aContained )
 {
 if( Schematic() && Schematic()->Settings().m_IntersheetRefsShow )
 bbox.Merge( m_intersheetRefsField.GetBoundingBox() );

 bbox.Inflate( aAccuracy );
 return aRect.Contains( bbox );
 }

 bbox.Inflate( aAccuracy );

 if( aRect.Intersects( bbox ) )
 return true;

 if( Schematic() && Schematic()->Settings().m_IntersheetRefsShow )
 {
 bbox = m_intersheetRefsField.GetBoundingBox();
 bbox.Inflate( aAccuracy );

 return aRect.Intersects( bbox );
 }

 return false;
}


SCH_HIERLABEL::SCH_HIERLABEL( const wxPoint& pos, const wxString& text, KICAD_T aType )
 : SCH_TEXT( pos, text, aType )
{
 m_layer = LAYER_HIERLABEL;
 m_shape = PINSHEETLABEL_SHAPE::PS_INPUT;
 m_isDangling = true;
 SetMultilineAllowed( false );
}


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


void SCH_HIERLABEL::SetLabelSpinStyle( LABEL_SPIN_STYLE aSpinStyle )
{
 m_spin_style = aSpinStyle;

 // Assume "Right" and Left" mean which side of the port symbol the text will be on
 // If we are left of the symbol, we want to right justify to line up with the symbol
 switch( aSpinStyle )
 {
 default:
 wxLogWarning( "SetLabelSpinStyle bad spin style" );
 break;

 case LABEL_SPIN_STYLE::LEFT:
 //
 m_spin_style = LABEL_SPIN_STYLE::LEFT; // Handle the error spin style by resetting
 SetTextAngle( TEXT_ANGLE_HORIZ );
 SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
 break;

 case LABEL_SPIN_STYLE::UP:
 SetTextAngle( TEXT_ANGLE_VERT );
 SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
 break;

 case LABEL_SPIN_STYLE::RIGHT:
 SetTextAngle( TEXT_ANGLE_HORIZ );
 SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
 SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
 break;

 case LABEL_SPIN_STYLE::BOTTOM:
 SetTextAngle( TEXT_ANGLE_VERT );
 SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
 SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
 break;
 }
}


void SCH_HIERLABEL::Print( const RENDER_SETTINGS* aSettings, const wxPoint& offset )
{
 wxCHECK_RET( Schematic(), "No parent SCHEMATIC set for SCH_LABEL!" );

 static std::vector <wxPoint> Poly;

 wxDC* DC = aSettings->GetPrintDC();
 SCH_CONNECTION* conn = Connection();
 bool isBus = conn && conn->IsBus();
 COLOR4D color = aSettings->GetLayerColor( isBus ? LAYER_BUS : m_layer );
 int penWidth = std::max( GetPenWidth(), aSettings->GetDefaultPenWidth() );
 wxPoint textOffset = offset + GetSchematicTextOffset( aSettings );

 EDA_TEXT::Print( aSettings, textOffset, color );

 CreateGraphicShape( aSettings, Poly, GetTextPos() + offset );
 GRPoly( nullptr, DC, Poly.size(), &Poly[0], false, penWidth, color, color );
}


void SCH_HIERLABEL::CreateGraphicShape( const RENDER_SETTINGS* aSettings,
 std::vector<wxPoint>& aPoints, const wxPoint& aPos ) const
{
 CreateGraphicShape( aSettings, aPoints, aPos, m_shape );
}


void SCH_HIERLABEL::CreateGraphicShape( const RENDER_SETTINGS* aSettings,
 std::vector<wxPoint>& aPoints, const wxPoint& aPos,
 PINSHEETLABEL_SHAPE aShape ) const
{
 int* Template = TemplateShape[static_cast<int>( aShape )][static_cast<int>( m_spin_style )];
 int halfSize = GetTextHeight() / 2;
 int imax = *Template;
 Template++;

 aPoints.clear();

 for( int ii = 0; ii < imax; ii++ )
 {
 wxPoint corner;
 corner.x = ( halfSize * (*Template) ) + aPos.x;
 Template++;

 corner.y = ( halfSize * (*Template) ) + aPos.y;
 Template++;

 aPoints.push_back( corner );
 }
}


const EDA_RECT SCH_HIERLABEL::GetBoundingBox() const
{
 int penWidth = GetEffectiveTextPenWidth();
 int margin = GetTextOffset();

 int x = GetTextPos().x;
 int y = GetTextPos().y;

 int height = GetTextHeight() + penWidth + margin;
 int length = LenSize( GetShownText(), penWidth )
 + height; // add height for triangular shapes

 int dx, dy;

 switch( GetLabelSpinStyle() )
 {
 default:
 case LABEL_SPIN_STYLE::LEFT:
 dx = -length;
 dy = height;
 x += Mils2iu( DANGLING_SYMBOL_SIZE );
 y -= height / 2;
 break;

 case LABEL_SPIN_STYLE::UP:
 dx = height;
 dy = -length;
 x -= height / 2;
 y += Mils2iu( DANGLING_SYMBOL_SIZE );
 break;

 case LABEL_SPIN_STYLE::RIGHT:
 dx = length;
 dy = height;
 x -= Mils2iu( DANGLING_SYMBOL_SIZE );
 y -= height / 2;
 break;

 case LABEL_SPIN_STYLE::BOTTOM:
 dx = height;
 dy = length;
 x -= height / 2;
 y -= Mils2iu( DANGLING_SYMBOL_SIZE );
 break;
 }

 EDA_RECT box( wxPoint( x, y ), wxSize( dx, dy ) );
 box.Normalize();
 return box;
}


wxPoint SCH_HIERLABEL::GetSchematicTextOffset( const RENDER_SETTINGS* aSettings ) const
{
 wxPoint text_offset;
 int dist = GetTextOffset( aSettings );

 dist += GetTextWidth();

 switch( GetLabelSpinStyle() )
 {
 default:
 case LABEL_SPIN_STYLE::LEFT: text_offset.x = -dist; break; // Orientation horiz normale
 case LABEL_SPIN_STYLE::UP: text_offset.y = -dist; break; // Orientation vert UP
 case LABEL_SPIN_STYLE::RIGHT: text_offset.x = dist; break; // Orientation horiz inverse
 case LABEL_SPIN_STYLE::BOTTOM: text_offset.y = dist; break; // Orientation vert BOTTOM
 }

 return text_offset;
}


wxString SCH_HIERLABEL::GetSelectMenuText( EDA_UNITS aUnits ) const
{
 return wxString::Format( _( "Hierarchical Label '%s'" ), ShortenedShownText() );
}


BITMAPS SCH_HIERLABEL::GetMenuImage() const
{
 return BITMAPS::add_hierarchical_label;
}


HTML_MESSAGE_BOX* SCH_TEXT::ShowSyntaxHelp( wxWindow* aParentWindow )
{
 wxString msg =
#include "sch_text_help_md.h"
 ;

 HTML_MESSAGE_BOX* dlg = new HTML_MESSAGE_BOX( nullptr, _( "Syntax Help" ) );
 wxSize sz( 320, 320 );

 dlg->SetMinSize( dlg->ConvertDialogToPixels( sz ) );
 dlg->SetDialogSizeInDU( sz.x, sz.y );

 wxString html_txt;
 ConvertMarkdown2Html( wxGetTranslation( msg ), html_txt );
 dlg->AddHTML_Text( html_txt );
 dlg->ShowModeless();

 return dlg;
}