lib_field.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2022 CERN
 * Copyright (C) 2004-2022 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 <string_utils.h>
#include <sch_draw_panel.h>
#include <eda_draw_frame.h>
#include <plotters/plotter.h>
#include <trigo.h>
#include <base_units.h>
#include <widgets/msgpanel.h>
#include <bitmaps.h>
#include <general.h>
#include <lib_symbol.h>
#include <transform.h>
#include <lib_field.h>
#include <template_fieldnames.h>
#include <settings/color_settings.h>
 
 
LIB_FIELD::LIB_FIELD( LIB_SYMBOL* aParent, int aId, const wxString& aName ) :
 LIB_ITEM( LIB_FIELD_T, aParent ),
 EDA_TEXT( schIUScale )
{
 Init( aId );
 m_name = aName;
}
 
 
LIB_FIELD::LIB_FIELD( int aId ) :
 LIB_ITEM( LIB_FIELD_T, nullptr ),
 EDA_TEXT( schIUScale )
{
 Init( aId );
}
 
 
LIB_FIELD::LIB_FIELD( int aId, const wxString& aName ) :
 LIB_ITEM( LIB_FIELD_T, nullptr ),
 EDA_TEXT( schIUScale )
{
 Init( aId );
 m_name = aName;
}
 
 
LIB_FIELD& LIB_FIELD::operator=( const LIB_FIELD& field )
{
 m_id = field.m_id;
 m_name = field.m_name;
 m_parent = field.m_parent;
 m_autoAdded = field.m_autoAdded;
 m_showName = field.m_showName;
 m_allowAutoPlace = field.m_allowAutoPlace;
 m_showInChooser = field.m_showInChooser;
 
 SetText( field.GetText() );
 SetAttributes( field );
 
 return *this;
}
 
 
void LIB_FIELD::Init( int aId )
{
 m_id = aId;
 
 SetTextAngle( ANGLE_HORIZONTAL ); // constructor already did this.
 
 // Fields in RAM must always have names, because we are trying to get less dependent on
 // field ids and more dependent on names. Plus assumptions are made in the field editors.
 m_name = TEMPLATE_FIELDNAME::GetDefaultFieldName( aId );
 
 // By contrast, VALUE and REFERENCE are are always constructed as initially visible, and
 // template fieldsnames' initial visibility is controlled by the template fieldname config.
 if( aId == DATASHEET_FIELD || aId == FOOTPRINT_FIELD )
 SetVisible( false );
 
 m_autoAdded = false;
 m_showName = false;
 m_allowAutoPlace = true;
 m_showInChooser = true;
}
 
 
void LIB_FIELD::SetId( int aId )
{
 m_id = aId;
}
 
 
int LIB_FIELD::GetPenWidth() const
{
 return GetEffectiveTextPenWidth();
}
 
 
KIFONT::FONT* LIB_FIELD::getDrawFont() const
{
 KIFONT::FONT* font = EDA_TEXT::GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( GetDefaultFont(), IsBold(), IsItalic() );
 
 return font;
}
 
 
void LIB_FIELD::print( const RENDER_SETTINGS* aSettings, const VECTOR2I& aOffset, void* aData,
 const TRANSFORM& aTransform, bool aDimmed )
{
 wxDC* DC = aSettings->GetPrintDC();
 COLOR4D color = aSettings->GetLayerColor( IsVisible() ? GetDefaultLayer() : LAYER_HIDDEN );
 COLOR4D bg = aSettings->GetBackgroundColor();
 bool blackAndWhiteMode = GetGRForceBlackPenState();
 int penWidth = GetEffectivePenWidth( aSettings );
 VECTOR2I text_pos = aTransform.TransformCoordinate( GetTextPos() ) + aOffset;
 wxString text = aData ? *static_cast<wxString*>( aData ) : GetText();
 
 if( blackAndWhiteMode || bg == COLOR4D::UNSPECIFIED )
 bg = COLOR4D::WHITE;
 
 if( !blackAndWhiteMode && GetTextColor() != COLOR4D::UNSPECIFIED )
 color = GetTextColor();
 
 if( aDimmed )
 {
 color.Desaturate( );
 color = color.Mix( bg, 0.5f );
 }
 
 KIFONT::FONT* font = GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( aSettings->GetDefaultFont(), IsBold(), IsItalic() );
 
 GRPrintText( DC, text_pos, color, text, GetTextAngle(), GetTextSize(), GetHorizJustify(),
 GetVertJustify(), penWidth, IsItalic(), IsBold(), font );
}
 
 
bool LIB_FIELD::HitTest( const VECTOR2I& aPosition, int aAccuracy ) const
{
 // Because HitTest is mainly used to select the field return false if it is empty
 if( GetText().IsEmpty() )
 return false;
 
 // Build a temporary copy of the text for hit testing
 EDA_TEXT tmp_text( *this );
 
 // Reference designator text has one or 2 additional character (displays U? or U?A)
 if( m_id == REFERENCE_FIELD )
 {
 const LIB_SYMBOL* parent = dynamic_cast<const LIB_SYMBOL*>( m_parent );
 
 wxString extended_text = tmp_text.GetText();
 extended_text.Append('?');
 
  if ( parent && parent->GetUnitCount() > 1 )
 extended_text.Append('A');
 
 tmp_text.SetText( extended_text );
 }
 
 tmp_text.SetTextPos( DefaultTransform.TransformCoordinate( GetTextPos() ) );
 
 // The text orientation may need to be flipped if the transformation matrix causes xy axes
 // to be flipped. This simple algo works only for schematic matrix (rot 90 or/and mirror)
 bool t1 = ( DefaultTransform.x1 != 0 ) ^ ( GetTextAngle() != ANGLE_HORIZONTAL );
 tmp_text.SetTextAngle( t1 ? ANGLE_HORIZONTAL : ANGLE_VERTICAL );
 
 return tmp_text.TextHitTest( aPosition, aAccuracy );
}
 
 
EDA_ITEM* LIB_FIELD::Clone() const
{
 LIB_FIELD* newfield = new LIB_FIELD( m_id );
 
 Copy( newfield );
 
 return (EDA_ITEM*) newfield;
}
 
 
void LIB_FIELD::Copy( LIB_FIELD* aTarget ) const
{
 aTarget->m_name = m_name;
 aTarget->m_showName = m_showName;
 aTarget->m_allowAutoPlace = m_allowAutoPlace;
 aTarget->m_showInChooser = m_showInChooser;
 
 aTarget->CopyText( *this );
 aTarget->SetAttributes( *this );
 aTarget->SetParent( m_parent );
 aTarget->SetAutoAdded( IsAutoAdded() );
}
 
 
int LIB_FIELD::compare( const LIB_ITEM& aOther, int aCompareFlags ) const
{
 wxASSERT( aOther.Type() == LIB_FIELD_T );
 
 int retv = LIB_ITEM::compare( aOther, aCompareFlags );
 
 if( retv )
 return retv;
 
 const LIB_FIELD* tmp = ( LIB_FIELD* ) &aOther;
 
 // Equality test will vary depending whether or not the field is mandatory. Otherwise,
 // sorting is done by ordinal.
 if( aCompareFlags & LIB_ITEM::COMPARE_FLAGS::EQUALITY )
 {
 // Mandatory fields have fixed ordinals and their names can vary due to translated field
 // names. Optional fields have fixed names and their ordinals can vary.
 if( IsMandatory() )
 {
 if( m_id != tmp->m_id )
 return m_id - tmp->m_id;
 }
 else
 {
 retv = m_name.Cmp( tmp->m_name );
 
 if( retv )
 return retv;
 }
 }
 else
 {
 if( m_id != tmp->m_id )
 return m_id - tmp->m_id;
 }
 
 retv = GetText().CmpNoCase( tmp->GetText() );
 
 if( retv != 0 )
 return retv;
 
 if( GetTextPos().x != tmp->GetTextPos().x )
 return GetTextPos().x - tmp->GetTextPos().x;
 
 if( GetTextPos().y != tmp->GetTextPos().y )
 return GetTextPos().y - tmp->GetTextPos().y;
 
 if( GetTextWidth() != tmp->GetTextWidth() )
 return GetTextWidth() - tmp->GetTextWidth();
 
 if( GetTextHeight() != tmp->GetTextHeight() )
 return GetTextHeight() - tmp->GetTextHeight();
 
 return 0;
}
 
 
void LIB_FIELD::Offset( const VECTOR2I& aOffset )
{
 EDA_TEXT::Offset( aOffset );
}
 
 
void LIB_FIELD::MoveTo( const VECTOR2I& newPosition )
{
 EDA_TEXT::SetTextPos( newPosition );
}
 
 
void LIB_FIELD::MirrorHorizontal( const VECTOR2I& center )
{
 int x = GetTextPos().x;
 
 x -= center.x;
 x *= -1;
 x += center.x;
 
 SetTextX( x );
}
 
 
void LIB_FIELD::MirrorVertical( const VECTOR2I& center )
{
 int y = GetTextPos().y;
 
 y -= center.y;
 y *= -1;
 y += center.y;
 
 SetTextY( y );
}
 
 
void LIB_FIELD::Rotate( const VECTOR2I& center, bool aRotateCCW )
{
 EDA_ANGLE rot_angle = aRotateCCW ? -ANGLE_90 : ANGLE_90;
 
 VECTOR2I pt = GetTextPos();
 RotatePoint( pt, center, rot_angle );
 SetTextPos( pt );
 
 SetTextAngle( GetTextAngle() != ANGLE_HORIZONTAL ? ANGLE_HORIZONTAL : ANGLE_VERTICAL );
}
 
 
void LIB_FIELD::Plot( PLOTTER* aPlotter, bool aBackground, const VECTOR2I& aOffset,
 const TRANSFORM& aTransform, bool aDimmed ) const
{
 if( GetText().IsEmpty() || aBackground )
 return;
 
 RENDER_SETTINGS* renderSettings = aPlotter->RenderSettings();
 
 // Calculate the text orientation, according to the symbol orientation/mirror.
 EDA_ANGLE orient = GetTextAngle();
 
 if( aTransform.y1 ) // Rotate symbol 90 deg.
 {
 if( orient.IsHorizontal() )
 orient = ANGLE_VERTICAL;
 else
 orient = ANGLE_HORIZONTAL;
 }
 
 BOX2I bbox = GetBoundingBox();
 bbox.RevertYAxis();
 
 GR_TEXT_H_ALIGN_T hjustify = GR_TEXT_H_ALIGN_CENTER;
 GR_TEXT_V_ALIGN_T vjustify = GR_TEXT_V_ALIGN_CENTER;
 VECTOR2I textpos = aTransform.TransformCoordinate( bbox.Centre() ) + aOffset;
 
 COLOR4D color;
 COLOR4D bg;
 
 if( aPlotter->GetColorMode() )
 {
 if( GetTextColor() != COLOR4D::UNSPECIFIED )
 color = GetTextColor();
 else
 color = renderSettings->GetLayerColor( GetDefaultLayer() );
 
 bg = renderSettings->GetBackgroundColor();
 
 if( bg == COLOR4D::UNSPECIFIED )
 bg = COLOR4D::WHITE;
 }
 else
 {
 color = COLOR4D::BLACK;
 bg = COLOR4D::WHITE;
 }
 
 if( aDimmed )
 {
 color.Desaturate( );
 color = color.Mix( bg, 0.5f );
 }
 
 int penWidth = GetEffectivePenWidth( renderSettings );
 KIFONT::FONT* font = GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( renderSettings->GetDefaultFont(), IsBold(), IsItalic() );
 
 TEXT_ATTRIBUTES attrs = GetAttributes();
 attrs.m_StrokeWidth = penWidth;
 attrs.m_Halign = hjustify;
 attrs.m_Valign = vjustify;
 attrs.m_Angle = orient;
 attrs.m_Multiline = false;
 
 aPlotter->PlotText( textpos, color, GetShownText(), attrs, font );
}
 
 
wxString LIB_FIELD::GetFullText( int unit ) const
{
 if( m_id != REFERENCE_FIELD )
 return GetText();
 
  wxString text = GetText();
 text << wxT( "?" );
 
 wxCHECK( GetParent(), text );
 
 if( GetParent()->IsMulti() )
 text << LIB_SYMBOL::SubReference( unit );
 
 return text;
}
 
 
wxString LIB_FIELD::GetShownText( int aDepth, bool aAllowExtraText ) const
{
 wxString text = EDA_TEXT::GetShownText( aDepth );
 
 if( IsNameShown() )
 text = GetName() << wxT( ": " ) << text;
 
 return text;
}
 
 
const BOX2I LIB_FIELD::GetBoundingBox() const
{
 /* Y coordinates for LIB_ITEMS are bottom to top, so we must invert the Y position when
 * calling GetTextBox() that works using top to bottom Y axis orientation.
 */
 BOX2I bbox = GetTextBox( -1, true );
 bbox.RevertYAxis();
 
 // We are using now a bottom to top Y axis.
 VECTOR2I orig = bbox.GetOrigin();
 VECTOR2I end = bbox.GetEnd();
 
 RotatePoint( orig, GetTextPos(), -GetTextAngle() );
 RotatePoint( end, GetTextPos(), -GetTextAngle() );
 
 bbox.SetOrigin( orig );
 bbox.SetEnd( end );
 
 // We are using now a top to bottom Y axis:
 bbox.RevertYAxis();
 
 return bbox;
}
 
 
void LIB_FIELD::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 2;
 
 switch( m_id )
 {
 case REFERENCE_FIELD: aLayers[0] = LAYER_REFERENCEPART; break;
 case VALUE_FIELD: aLayers[0] = LAYER_VALUEPART; break;
 default: aLayers[0] = LAYER_FIELDS; break;
 }
 
 aLayers[1] = LAYER_SELECTION_SHADOWS;
}
 
 
SCH_LAYER_ID LIB_FIELD::GetDefaultLayer() const
{
 switch( m_id )
 {
 case REFERENCE_FIELD: return LAYER_REFERENCEPART;
 case VALUE_FIELD: return LAYER_VALUEPART;
 default: return LAYER_FIELDS;
 }
}
 
 
wxString LIB_FIELD::GetName( bool aUseDefaultName ) const
{
 if( m_name.IsEmpty() && aUseDefaultName )
 return TEMPLATE_FIELDNAME::GetDefaultFieldName( m_id );
 
 return m_name;
}
 
 
wxString LIB_FIELD::GetCanonicalName() const
{
 switch( m_id )
 {
 case REFERENCE_FIELD:
 case VALUE_FIELD:
 case FOOTPRINT_FIELD:
 case DATASHEET_FIELD:
 return TEMPLATE_FIELDNAME::GetDefaultFieldName( m_id );
 }
 
 return m_name;
}
 
 
void LIB_FIELD::SetName( const wxString& aName )
{
 // Mandatory field names are fixed.
 if( IsMandatory() )
 {
 wxFAIL_MSG( wxS( "trying to set a MANDATORY_FIELD's name\n" ) );
 return;
 }
 
 if( m_name != aName )
 {
 m_name = aName;
 SetModified();
 }
}
 
 
wxString LIB_FIELD::GetItemDescription( UNITS_PROVIDER* aUnitsProvider ) const
{
 return wxString::Format( "%s '%s'", GetName(), KIUI::EllipsizeMenuText( GetShownText() ) );
}
 
 
void LIB_FIELD::BeginEdit( const VECTOR2I& aPosition )
{
 SetTextPos( aPosition );
}
 
 
void LIB_FIELD::CalcEdit( const VECTOR2I& aPosition )
{
 SetTextPos( aPosition );
}
 
 
void LIB_FIELD::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
 wxString msg;
 
 LIB_ITEM::GetMsgPanelInfo( aFrame, aList );
 
 aList.emplace_back( _( "Field" ), GetName() );
 
 // Don't use GetShownText() here; we want to show the user the variable references
 aList.emplace_back( _( "Text" ), UnescapeString( GetText() ) );
 
 aList.emplace_back( _( "Visible" ), IsVisible() ? _( "Yes" ) : _( "No" ) );
 
 aList.emplace_back( _( "Font" ), GetFont() ? GetFont()->GetName() : _( "Default" ) );
 
 aList.emplace_back( _( "Style" ), GetTextStyleName() );
 
 aList.emplace_back( _( "Text Size" ), aFrame->MessageTextFromValue( GetTextWidth() ) );
 
 switch ( GetHorizJustify() )
 {
 case GR_TEXT_H_ALIGN_LEFT: msg = _( "Left" ); break;
 case GR_TEXT_H_ALIGN_CENTER: msg = _( "Center" ); break;
 case GR_TEXT_H_ALIGN_RIGHT: msg = _( "Right" ); break;
 }
 
 aList.emplace_back( _( "H Justification" ), msg );
 
 switch ( GetVertJustify() )
 {
 case GR_TEXT_V_ALIGN_TOP: msg = _( "Top" ); break;
 case GR_TEXT_V_ALIGN_CENTER: msg = _( "Center" ); break;
 case GR_TEXT_V_ALIGN_BOTTOM: msg = _( "Bottom" ); break;
 }
 
 aList.emplace_back( _( "V Justification" ), msg );
}
 
 
BITMAPS LIB_FIELD::GetMenuImage() const
{
 return BITMAPS::move;
}
 
 
bool LIB_FIELD::IsMandatory() const
{
 return m_id >= 0 && m_id < MANDATORY_FIELDS;
}