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) 1992-2023 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 <base_units.h>
#include <pgm_base.h>
#include <sch_edit_frame.h>
#include <plotters/plotter.h>
#include <widgets/msgpanel.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 <tools/sch_navigate_tool.h>
#include <trigo.h>
 
using KIGFX::SCH_RENDER_SETTINGS;
 
 
TEXT_SPIN_STYLE TEXT_SPIN_STYLE::RotateCW()
{
 SPIN newSpin = m_spin;
 
 switch( m_spin )
 {
 case TEXT_SPIN_STYLE::LEFT: newSpin = TEXT_SPIN_STYLE::UP; break;
 case TEXT_SPIN_STYLE::UP: newSpin = TEXT_SPIN_STYLE::RIGHT; break;
 case TEXT_SPIN_STYLE::RIGHT: newSpin = TEXT_SPIN_STYLE::BOTTOM; break;
 case TEXT_SPIN_STYLE::BOTTOM: newSpin = TEXT_SPIN_STYLE::LEFT; break;
 }
 
 return TEXT_SPIN_STYLE( newSpin );
}
 
 
TEXT_SPIN_STYLE TEXT_SPIN_STYLE::RotateCCW()
{
 SPIN newSpin = m_spin;
 
 switch( m_spin )
 {
 case TEXT_SPIN_STYLE::LEFT: newSpin = TEXT_SPIN_STYLE::BOTTOM; break;
 case TEXT_SPIN_STYLE::BOTTOM: newSpin = TEXT_SPIN_STYLE::RIGHT; break;
 case TEXT_SPIN_STYLE::RIGHT: newSpin = TEXT_SPIN_STYLE::UP; break;
 case TEXT_SPIN_STYLE::UP: newSpin = TEXT_SPIN_STYLE::LEFT; break;
 }
 
 return TEXT_SPIN_STYLE( newSpin );
}
 
 
TEXT_SPIN_STYLE TEXT_SPIN_STYLE::MirrorX()
{
 SPIN newSpin = m_spin;
 
 switch( m_spin )
 {
 case TEXT_SPIN_STYLE::UP: newSpin = TEXT_SPIN_STYLE::BOTTOM; break;
 case TEXT_SPIN_STYLE::BOTTOM: newSpin = TEXT_SPIN_STYLE::UP; break;
 case TEXT_SPIN_STYLE::LEFT: break;
 case TEXT_SPIN_STYLE::RIGHT: break;
 }
 
 return TEXT_SPIN_STYLE( newSpin );
}
 
 
TEXT_SPIN_STYLE TEXT_SPIN_STYLE::MirrorY()
{
 SPIN newSpin = m_spin;
 
 switch( m_spin )
 {
 case TEXT_SPIN_STYLE::LEFT: newSpin = TEXT_SPIN_STYLE::RIGHT; break;
 case TEXT_SPIN_STYLE::RIGHT: newSpin = TEXT_SPIN_STYLE::LEFT; break;
 case TEXT_SPIN_STYLE::UP: break;
 case TEXT_SPIN_STYLE::BOTTOM: break;
 }
 
 return TEXT_SPIN_STYLE( newSpin );
}
 
 
SCH_TEXT::SCH_TEXT( const VECTOR2I& pos, const wxString& text, KICAD_T aType ) :
 SCH_ITEM( nullptr, aType ),
 EDA_TEXT( schIUScale, text )
{
 m_layer = LAYER_NOTES;
 
 SetTextPos( pos );
 SetTextSpinStyle( TEXT_SPIN_STYLE::LEFT );
 SetMultilineAllowed( true );
}
 
 
SCH_TEXT::SCH_TEXT( const SCH_TEXT& aText ) :
 SCH_ITEM( aText ),
 EDA_TEXT( aText ),
 m_spin_style( aText.m_spin_style )
{ }
 
 
VECTOR2I SCH_TEXT::GetSchematicTextOffset( const RENDER_SETTINGS* aSettings ) const
{
 return VECTOR2I( 0, 0 );
}
 
 
void SCH_TEXT::MirrorHorizontally( int aCenter )
{
 // Text is NOT really mirrored; it is moved to a suitable horizontal position
 SetTextSpinStyle( GetTextSpinStyle().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
 SetTextSpinStyle( GetTextSpinStyle().MirrorX() );
 
 SetTextY( MIRRORVAL( GetTextPos().y, aCenter ) );
}
 
 
void SCH_TEXT::Rotate( const VECTOR2I& aCenter )
{
 VECTOR2I pt = GetTextPos();
 RotatePoint( pt, aCenter, ANGLE_90 );
 VECTOR2I offset = pt - GetTextPos();
 
 Rotate90( false );
 
 SetTextPos( GetTextPos() + offset );
}
 
 
void SCH_TEXT::Rotate90( bool aClockwise )
{
 if( aClockwise )
 SetTextSpinStyle( GetTextSpinStyle().RotateCW() );
 else
 SetTextSpinStyle( GetTextSpinStyle().RotateCCW() );
}
 
 
void SCH_TEXT::MirrorSpinStyle( bool aLeftRight )
{
 if( aLeftRight )
 SetTextSpinStyle( GetTextSpinStyle().MirrorY() );
 else
 SetTextSpinStyle( GetTextSpinStyle().MirrorX() );
}
 
 
void SCH_TEXT::SetTextSpinStyle( TEXT_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:
 wxFAIL_MSG( "Bad spin style" );
 m_spin_style = TEXT_SPIN_STYLE::RIGHT; // Handle the error spin style by resetting
 KI_FALLTHROUGH;
 
 case TEXT_SPIN_STYLE::RIGHT: // Horiz Normal Orientation
 SetTextAngle( ANGLE_HORIZONTAL );
 SetHorizJustify( GR_TEXT_H_ALIGN_LEFT );
 break;
 
 case TEXT_SPIN_STYLE::UP: // Vert Orientation UP
 SetTextAngle( ANGLE_VERTICAL );
 SetHorizJustify( GR_TEXT_H_ALIGN_LEFT );
 break;
 
 case TEXT_SPIN_STYLE::LEFT: // Horiz Orientation - Right justified
 SetTextAngle( ANGLE_HORIZONTAL );
 SetHorizJustify( GR_TEXT_H_ALIGN_RIGHT );
 break;
 
 case TEXT_SPIN_STYLE::BOTTOM: // Vert Orientation BOTTOM
 SetTextAngle( ANGLE_VERTICAL );
 SetHorizJustify( GR_TEXT_H_ALIGN_RIGHT );
 break;
 }
 
 SetVertJustify( GR_TEXT_V_ALIGN_BOTTOM );
}
 
 
void SCH_TEXT::SwapData( SCH_ITEM* aItem )
{
 SCH_TEXT* item = static_cast<SCH_TEXT*>( aItem );
 
 std::swap( m_layer, item->m_layer );
 std::swap( m_spin_style, item->m_spin_style );
 
 SwapText( *item );
 SwapAttributes( *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 );
}
 
 
int SCH_TEXT::GetPenWidth() const
{
 return GetEffectiveTextPenWidth();
}
 
 
KIFONT::FONT* SCH_TEXT::getDrawFont() const
{
 KIFONT::FONT* font = EDA_TEXT::GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( GetDefaultFont(), IsBold(), IsItalic() );
 
 return font;
}
 
 
void SCH_TEXT::Print( const RENDER_SETTINGS* aSettings, const VECTOR2I& aOffset )
{
 COLOR4D color = GetTextColor();
 bool blackAndWhiteMode = GetGRForceBlackPenState();
 VECTOR2I text_offset = aOffset + GetSchematicTextOffset( aSettings );
 
 if( blackAndWhiteMode || color == COLOR4D::UNSPECIFIED )
 color = aSettings->GetLayerColor( m_layer );
 
 KIFONT::FONT* font = GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( aSettings->GetDefaultFont(), IsBold(), IsItalic() );
 
 // Adjust text drawn in an outline font to more closely mimic the positioning of
 // SCH_FIELD text.
 if( font->IsOutline() )
 {
 BOX2I firstLineBBox = GetTextBox( 0 );
 int sizeDiff = firstLineBBox.GetHeight() - GetTextSize().y;
 int adjust = KiROUND( sizeDiff * 0.4 );
 VECTOR2I adjust_offset( 0, - adjust );
 
 RotatePoint( adjust_offset, GetDrawRotation() );
 text_offset += adjust_offset;
 }
 
 EDA_TEXT::Print( aSettings, text_offset, color );
}
 
 
const BOX2I SCH_TEXT::GetBoundingBox() const
{
 BOX2I bbox = GetTextBox();
 
 if( !GetTextAngle().IsZero() ) // Rotate bbox.
 {
 VECTOR2I pos = bbox.GetOrigin();
 VECTOR2I end = bbox.GetEnd();
 
 RotatePoint( pos, GetTextPos(), GetTextAngle() );
 RotatePoint( end, GetTextPos(), GetTextAngle() );
 
 bbox.SetOrigin( pos );
 bbox.SetEnd( end );
 }
 
 bbox.Normalize();
 return bbox;
}
 
 
wxString SCH_TEXT::GetShownText( int aDepth, bool aAllowExtraText ) const
{
 std::function<bool( wxString* )> textResolver =
 [&]( wxString* token ) -> bool
 {
 if( SCH_SHEET* sheet = Schematic()->CurrentSheet().Last() )
 {
 if( sheet->ResolveTextVar( token, aDepth + 1 ) )
 return true;
 }
 
 return false;
 };
 
 wxString text = EDA_TEXT::GetShownText();
 
 if( text == wxS( "~" ) ) // Legacy placeholder for empty string
 {
 text = wxS( "" );
 }
 else if( HasTextVars() )
 {
 if( aDepth < 10 )
 text = ExpandTextVars( text, &textResolver );
 }
 
 return text;
}
 
 
void SCH_TEXT::DoHypertextAction( EDA_DRAW_FRAME* aFrame ) const
{
 wxCHECK_MSG( IsHypertext(), /* void */,
 "Calling a hypertext menu on a SCH_TEXT with no hyperlink?" );
 
 SCH_NAVIGATE_TOOL* navTool = aFrame->GetToolManager()->GetTool<SCH_NAVIGATE_TOOL>();
 navTool->HypertextCommand( m_hyperlink );
}
 
 
wxString SCH_TEXT::GetItemDescription( UNITS_PROVIDER* aUnitsProvider ) const
{
 return wxString::Format( _( "Graphic Text '%s'" ), KIUI::EllipsizeMenuText( GetShownText() ) );
}
 
 
BITMAPS SCH_TEXT::GetMenuImage() const
{
 return BITMAPS::text;
}
 
 
bool SCH_TEXT::HitTest( const VECTOR2I& aPosition, int aAccuracy ) const
{
 BOX2I bBox = GetBoundingBox();
 bBox.Inflate( aAccuracy );
 return bBox.Contains( aPosition );
}
 
 
bool SCH_TEXT::HitTest( const BOX2I& aRect, bool aContained, int aAccuracy ) const
{
 BOX2I bBox = GetBoundingBox();
 bBox.Inflate( aAccuracy );
 
 if( aContained )
 return aRect.Contains( bBox );
 
 return aRect.Intersects( bBox );
}
 
 
void SCH_TEXT::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 2;
 aLayers[0] = m_layer;
 aLayers[1] = LAYER_SELECTION_SHADOWS;
}
 
 
void SCH_TEXT::Plot( PLOTTER* aPlotter, bool aBackground ) const
{
 if( aBackground )
 return;
 
 RENDER_SETTINGS* settings = aPlotter->RenderSettings();
 SCH_CONNECTION* connection = Connection();
 int layer = ( connection && connection->IsBus() ) ? LAYER_BUS : m_layer;
 COLOR4D color = GetTextColor();
 int penWidth = GetEffectiveTextPenWidth( settings->GetDefaultPenWidth() );
 VECTOR2I text_offset = GetSchematicTextOffset( aPlotter->RenderSettings() );
 
 if( !aPlotter->GetColorMode() || color == COLOR4D::UNSPECIFIED )
 color = settings->GetLayerColor( layer );
 
 penWidth = std::max( penWidth, settings->GetMinPenWidth() );
 aPlotter->SetCurrentLineWidth( penWidth );
 
 KIFONT::FONT* font = GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( settings->GetDefaultFont(), IsBold(), IsItalic() );
 
 // Adjust text drawn in an outline font to more closely mimic the positioning of
 // SCH_FIELD text.
 if( font->IsOutline() )
 {
 BOX2I firstLineBBox = GetTextBox( 0 );
 int sizeDiff = firstLineBBox.GetHeight() - GetTextSize().y;
 int adjust = KiROUND( sizeDiff * 0.4 );
 VECTOR2I adjust_offset( 0, - adjust );
 
 RotatePoint( adjust_offset, GetDrawRotation() );
 text_offset += adjust_offset;
 }
 
 std::vector<VECTOR2I> positions;
 wxArrayString strings_list;
 wxStringSplit( GetShownText(), strings_list, '\n' );
 positions.reserve( strings_list.Count() );
 
 GetLinePositions( positions, (int) strings_list.Count() );
 
 TEXT_ATTRIBUTES attrs = GetAttributes();
 attrs.m_StrokeWidth = penWidth;
 attrs.m_Multiline = false;
 
 for( unsigned ii = 0; ii < strings_list.Count(); ii++ )
 {
 VECTOR2I textpos = positions[ii] + text_offset;
 wxString& txt = strings_list.Item( ii );
 aPlotter->PlotText( textpos, color, txt, attrs, font );
 }
 
 if( HasHyperlink() )
 aPlotter->HyperlinkBox( GetBoundingBox(), GetHyperlink() );
}
 
 
void SCH_TEXT::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
 wxString msg;
 
 // Don't use GetShownText() here; we want to show the user the variable references
 aList.emplace_back( _( "Graphic Text" ), KIUI::EllipsizeStatusText( aFrame, GetText() ) );
 
 aList.emplace_back( _( "Font" ), GetFont() ? GetFont()->GetName() : _( "Default" ) );
 
 wxString textStyle[] = { _( "Normal" ), _( "Italic" ), _( "Bold" ), _( "Bold Italic" ) };
 int style = IsBold() && IsItalic() ? 3 : IsBold() ? 2 : IsItalic() ? 1 : 0;
 aList.emplace_back( _( "Style" ), textStyle[style] );
 
 aList.emplace_back( _( "Text Size" ), aFrame->MessageTextFromValue( GetTextWidth() ) );
 
 switch( GetTextSpinStyle() )
 {
 case TEXT_SPIN_STYLE::LEFT: msg = _( "Align right" ); break;
 case TEXT_SPIN_STYLE::UP: msg = _( "Align bottom" ); break;
 case TEXT_SPIN_STYLE::RIGHT: msg = _( "Align left" ); break;
 case TEXT_SPIN_STYLE::BOTTOM: msg = _( "Align top" ); break;
 default: msg = wxT( "???" ); break;
 }
 
 aList.emplace_back( _( "Justification" ), msg );
}
 
 
#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 << '"'
 << '>'
 << TO_UTF8( GetText() )
 << "</" << s.Lower().mb_str() << ">\n";
}
 
#endif