lib_text.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * 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 <common.h>
#include <sch_draw_panel.h>
#include <plotters/plotter.h>
#include <trigo.h>
#include <base_units.h>
#include <widgets/msgpanel.h>
#include <bitmaps.h>
#include <eda_draw_frame.h>
#include <lib_item.h>
#include <general.h>
#include <transform.h>
#include <settings/color_settings.h>
#include <lib_text.h>
#include <default_values.h> // For some default values
#include <string_utils.h>
 
LIB_TEXT::LIB_TEXT( LIB_SYMBOL* aParent ) :
 LIB_ITEM( LIB_TEXT_T, aParent ),
 EDA_TEXT( schIUScale, wxEmptyString )
{
 SetTextSize( wxSize( schIUScale.MilsToIU( DEFAULT_TEXT_SIZE ), schIUScale.MilsToIU( DEFAULT_TEXT_SIZE ) ) );
}
 
 
void LIB_TEXT::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 2;
 aLayers[0] = IsPrivate() ? LAYER_PRIVATE_NOTES : LAYER_DEVICE;
 aLayers[1] = LAYER_SELECTION_SHADOWS;
}
 
 
bool LIB_TEXT::HitTest( const VECTOR2I& aPosition, int aAccuracy ) const
{
 EDA_TEXT tmp_text( *this );
 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_TEXT::Clone() const
{
 LIB_TEXT* newitem = new LIB_TEXT( nullptr );
 
 newitem->m_parent = m_parent;
 newitem->m_unit = m_unit;
 newitem->m_convert = m_convert;
 newitem->m_private = m_private;
 newitem->m_flags = m_flags;
 
 newitem->SetText( GetText() );
 newitem->SetAttributes( *this );
 
 return newitem;
}
 
 
int LIB_TEXT::compare( const LIB_ITEM& aOther, int aCompareFlags ) const
{
 wxASSERT( aOther.Type() == LIB_TEXT_T );
 
 int retv = LIB_ITEM::compare( aOther, aCompareFlags );
 
 if( retv )
 return retv;
 
 const LIB_TEXT* tmp = ( LIB_TEXT* ) &aOther;
 
 int result = GetText().CmpNoCase( tmp->GetText() );
 
 if( result != 0 )
 return result;
 
 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_TEXT::Offset( const VECTOR2I& aOffset )
{
 EDA_TEXT::Offset( aOffset );
}
 
 
void LIB_TEXT::MoveTo( const VECTOR2I& newPosition )
{
 SetTextPos( newPosition );
}
 
 
void LIB_TEXT::NormalizeJustification( bool inverse )
{
 VECTOR2I delta( 0, 0 );
 BOX2I bbox = GetTextBox();
 
 if( GetTextAngle().IsHorizontal() )
 {
 if( GetHorizJustify() == GR_TEXT_H_ALIGN_LEFT )
 delta.x = bbox.GetWidth() / 2;
 else if( GetHorizJustify() == GR_TEXT_H_ALIGN_RIGHT )
 delta.x = - bbox.GetWidth() / 2;
 
 if( GetVertJustify() == GR_TEXT_V_ALIGN_TOP )
 delta.y = - bbox.GetHeight() / 2;
 else if( GetVertJustify() == GR_TEXT_V_ALIGN_BOTTOM )
 delta.y = bbox.GetHeight() / 2;
 }
 else
 {
 if( GetHorizJustify() == GR_TEXT_H_ALIGN_LEFT )
 delta.y = bbox.GetWidth() / 2;
 else if( GetHorizJustify() == GR_TEXT_H_ALIGN_RIGHT )
 delta.y = - bbox.GetWidth() / 2;
 
 if( GetVertJustify() == GR_TEXT_V_ALIGN_TOP )
 delta.x = + bbox.GetHeight() / 2;
 else if( GetVertJustify() == GR_TEXT_V_ALIGN_BOTTOM )
 delta.x = - bbox.GetHeight() / 2;
 }
 
 if( inverse )
 SetTextPos( GetTextPos() - delta );
 else
 SetTextPos( GetTextPos() + delta );
}
 
 
void LIB_TEXT::MirrorHorizontal( const VECTOR2I& center )
{
 NormalizeJustification( false );
 int x = GetTextPos().x;
 
 x -= center.x;
 x *= -1;
 x += center.x;
 
 if( GetTextAngle().IsHorizontal() )
 {
 if( GetHorizJustify() == GR_TEXT_H_ALIGN_LEFT )
 SetHorizJustify( GR_TEXT_H_ALIGN_RIGHT );
 else if( GetHorizJustify() == GR_TEXT_H_ALIGN_RIGHT )
 SetHorizJustify( GR_TEXT_H_ALIGN_LEFT );
 }
 else
 {
 if( GetVertJustify() == GR_TEXT_V_ALIGN_TOP )
 SetVertJustify( GR_TEXT_V_ALIGN_BOTTOM );
 else if( GetVertJustify() == GR_TEXT_V_ALIGN_BOTTOM )
 SetVertJustify( GR_TEXT_V_ALIGN_TOP );
 }
 
 SetTextX( x );
 NormalizeJustification( true );
}
 
 
void LIB_TEXT::MirrorVertical( const VECTOR2I& center )
{
 NormalizeJustification( false );
 int y = GetTextPos().y;
 
 y -= center.y;
 y *= -1;
 y += center.y;
 
 if( GetTextAngle().IsHorizontal() )
 {
 if( GetVertJustify() == GR_TEXT_V_ALIGN_TOP )
 SetVertJustify( GR_TEXT_V_ALIGN_BOTTOM );
 else if( GetVertJustify() == GR_TEXT_V_ALIGN_BOTTOM )
 SetVertJustify( GR_TEXT_V_ALIGN_TOP );
 }
 else
 {
 if( GetHorizJustify() == GR_TEXT_H_ALIGN_LEFT )
 SetHorizJustify( GR_TEXT_H_ALIGN_RIGHT );
 else if( GetHorizJustify() == GR_TEXT_H_ALIGN_RIGHT )
 SetHorizJustify( GR_TEXT_H_ALIGN_LEFT );
 }
 
 SetTextY( y );
 NormalizeJustification( true );
}
 
 
void LIB_TEXT::Rotate( const VECTOR2I& center, bool aRotateCCW )
{
 NormalizeJustification( false );
 EDA_ANGLE rot_angle = aRotateCCW ? -ANGLE_90 : ANGLE_90;
 
 VECTOR2I pt = GetTextPos();
 RotatePoint( pt, center, rot_angle );
 SetTextPos( pt );
 
 if( GetTextAngle().IsHorizontal() )
 {
 SetTextAngle( ANGLE_VERTICAL );
 }
 else
 {
 // 180° rotation is a mirror
 
  if( GetHorizJustify() == GR_TEXT_H_ALIGN_LEFT )
 SetHorizJustify( GR_TEXT_H_ALIGN_RIGHT );
 else if( GetHorizJustify() == GR_TEXT_H_ALIGN_RIGHT )
 SetHorizJustify( GR_TEXT_H_ALIGN_LEFT );
 
 if( GetVertJustify() == GR_TEXT_V_ALIGN_TOP )
 SetVertJustify( GR_TEXT_V_ALIGN_BOTTOM );
 else if( GetVertJustify() == GR_TEXT_V_ALIGN_BOTTOM )
 SetVertJustify( GR_TEXT_V_ALIGN_TOP );
 
 SetTextAngle( ANGLE_0 );
 }
 
 NormalizeJustification( true );
}
 
 
void LIB_TEXT::Plot( PLOTTER* plotter, bool aBackground, const VECTOR2I& offset,
 const TRANSFORM& aTransform, bool aDimmed ) const
{
 wxASSERT( plotter != nullptr );
 
 if( IsPrivate() )
 return;
 
 if( aBackground )
 return;
 
 RENDER_SETTINGS* settings = plotter->RenderSettings();
 
 BOX2I bBox = GetBoundingBox();
 // convert coordinates from draw Y axis to symbol_editor Y axis
 bBox.RevertYAxis();
 VECTOR2I txtpos = bBox.Centre();
 
 // The text orientation may need to be flipped if the transformation matrix causes xy
 // axes to be flipped.
 int t1 = ( aTransform.x1 != 0 ) ^ ( GetTextAngle() != ANGLE_HORIZONTAL );
 VECTOR2I pos = aTransform.TransformCoordinate( txtpos ) + offset;
 COLOR4D color = GetTextColor();
 COLOR4D bg = settings->GetBackgroundColor();
 
 if( !plotter->GetColorMode() || color == COLOR4D::UNSPECIFIED )
 color = settings->GetLayerColor( LAYER_DEVICE );
 
 if( !IsVisible() )
 bg = settings->GetLayerColor( LAYER_HIDDEN );
 else if( bg == COLOR4D::UNSPECIFIED || !plotter->GetColorMode() )
 bg = COLOR4D::WHITE;
 
 if( aDimmed )
 color = color.Mix( bg, 0.5f );
 
 int penWidth = std::max( GetEffectiveTextPenWidth(), settings->GetMinPenWidth() );
 
 KIFONT::FONT* font = GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( settings->GetDefaultFont(), IsBold(), IsItalic() );
 
 plotter->Text( pos, color, GetText(), t1 ? ANGLE_HORIZONTAL : ANGLE_VERTICAL, GetTextSize(),
 GR_TEXT_H_ALIGN_CENTER, GR_TEXT_V_ALIGN_CENTER, penWidth, IsItalic(), IsBold(),
 true, font );
}
 
 
int LIB_TEXT::GetPenWidth() const
{
 return GetEffectiveTextPenWidth();
}
 
 
KIFONT::FONT* LIB_TEXT::getDrawFont() const
{
 KIFONT::FONT* font = EDA_TEXT::GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( GetDefaultFont(), IsBold(), IsItalic() );
 
 return font;
}
 
 
void LIB_TEXT::print( const RENDER_SETTINGS* aSettings, const VECTOR2I& aOffset, void* aData,
 const TRANSFORM& aTransform, bool aDimmed )
{
 wxDC* DC = aSettings->GetPrintDC();
 COLOR4D color = GetTextColor();
 bool blackAndWhiteMode = GetGRForceBlackPenState();
 int penWidth = std::max( GetEffectiveTextPenWidth(), aSettings->GetDefaultPenWidth() );
 
 if( blackAndWhiteMode || color == COLOR4D::UNSPECIFIED )
 color = aSettings->GetLayerColor( LAYER_DEVICE );
 
 COLOR4D bg = aSettings->GetBackgroundColor();
 
 if( bg == COLOR4D::UNSPECIFIED || GetGRForceBlackPenState() )
 bg = COLOR4D::WHITE;
 
 if( !IsVisible() )
 bg = aSettings->GetLayerColor( LAYER_HIDDEN );
 
 if( aDimmed )
 color = color.Mix( bg, 0.5f );
 
 // Calculate the text orientation, according to the symbol orientation/mirror (needed when
 // draw text in schematic)
 EDA_ANGLE orient = GetTextAngle();
 
 if( aTransform.y1 ) // Rotate symbol 90 degrees.
 {
 if( orient == ANGLE_HORIZONTAL )
 orient = ANGLE_VERTICAL;
 else
 orient = ANGLE_HORIZONTAL;
 }
 
 KIFONT::FONT* font = GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( aSettings->GetDefaultFont(), IsBold(), IsItalic() );
 
 /*
 * Calculate the text justification, according to the symbol orientation/mirror.
 * This is a bit complicated due to cumulative calculations:
 * - numerous cases (mirrored or not, rotation)
 * - the GRText function will also recalculate H and V justifications according to the text
 * orientation.
 * - When a symbol is mirrored, the text is not mirrored and justifications are complicated
 * to calculate so the more easily way is to use no justifications (centered text) and
 * use GetBoundingBox to know the text coordinate considered as centered
 */
 BOX2I bBox = GetBoundingBox();
 
 // convert coordinates from draw Y axis to symbol_editor Y axis:
 bBox.RevertYAxis();
 VECTOR2I txtpos = bBox.Centre();
 
 // Calculate pos according to mirror/rotation.
 txtpos = aTransform.TransformCoordinate( txtpos ) + aOffset;
 
 GRPrintText( DC, txtpos, color, GetShownText(), orient, GetTextSize(), GR_TEXT_H_ALIGN_CENTER,
 GR_TEXT_V_ALIGN_CENTER, penWidth, IsItalic(), IsBold(), font );
}
 
 
void LIB_TEXT::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
 wxString msg;
 
 LIB_ITEM::GetMsgPanelInfo( aFrame, aList );
 
 // Don't use GetShownText() here; we want to show the user the variable references
 aList.emplace_back( _( "Text" ), UnescapeString( GetText() ) );
 
 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 );
}
 
 
const BOX2I LIB_TEXT::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;
}
 
 
wxString LIB_TEXT::GetSelectMenuText( UNITS_PROVIDER* aUnitsProvider ) const
{
 return wxString::Format( _( "Graphic Text '%s'" ), KIUI::EllipsizeMenuText( GetShownText() ) );
}
 
 
BITMAPS LIB_TEXT::GetMenuImage() const
{
 return BITMAPS::text;
}
 
 
void LIB_TEXT::BeginEdit( const VECTOR2I& aPosition )
{
 SetTextPos( aPosition );
}
 
 
void LIB_TEXT::CalcEdit( const VECTOR2I& aPosition )
{
 SetTextPos( aPosition );
}