gr_text.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) 2012 SoftPLC Corporation, Dick Hollenbeck <[email protected]>
 * Copyright (C) 2012 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 <gr_basic.h>
#include <plotters/plotter.h>
#include <trigo.h>
#include <math/util.h> // for KiROUND
#include <font/font.h>
 
#include <callback_gal.h>
 
 
int GetPenSizeForBold( int aTextSize )
{
 return KiROUND( aTextSize / 5.0 );
}
 
 
int GetPenSizeForDemiBold( int aTextSize )
{
 return KiROUND( aTextSize / 6 );
}
 
 
int GetPenSizeForBold( const wxSize& aTextSize )
{
 return GetPenSizeForBold( std::min( aTextSize.x, aTextSize.y ) );
}
 
 
int GetPenSizeForDemiBold( const wxSize& aTextSize )
{
 return GetPenSizeForDemiBold( std::min( aTextSize.x, aTextSize.y ) );
}
 
 
int GetPenSizeForNormal( int aTextSize )
{
 return KiROUND( aTextSize / 8.0 );
}
 
 
int GetPenSizeForNormal( const wxSize& aTextSize )
{
 return GetPenSizeForNormal( std::min( aTextSize.x, aTextSize.y ) );
}
 
 
int Clamp_Text_PenSize( int aPenSize, int aSize, bool aStrict )
{
 double scale = aStrict ? 0.18 : 0.25;
 int maxWidth = KiROUND( (double) aSize * scale );
 
 return std::min( aPenSize, maxWidth );
}
 
 
float Clamp_Text_PenSize( float aPenSize, int aSize, bool aStrict )
{
 double scale = aStrict ? 0.18 : 0.25;
 float maxWidth = (float) aSize * scale;
 
 return std::min( aPenSize, maxWidth );
}
 
 
int Clamp_Text_PenSize( int aPenSize, const VECTOR2I& aSize, bool aStrict )
{
 int size = std::min( std::abs( aSize.x ), std::abs( aSize.y ) );
 
 return Clamp_Text_PenSize( aPenSize, size, aStrict );
}
 
 
int GRTextWidth( const wxString& aText, KIFONT::FONT* aFont, const VECTOR2I& aSize,
 int aThickness, bool aBold, bool aItalic, const KIFONT::METRICS& aFontMetrics )
{
 if( !aFont )
 aFont = KIFONT::FONT::GetFont();
 
 return KiROUND( aFont->StringBoundaryLimits( aText, aSize, aThickness, aBold, aItalic,
 aFontMetrics ).x );
}
 
 
void GRPrintText( wxDC* aDC, const VECTOR2I& aPos, const COLOR4D& aColor, const wxString& aText,
 const EDA_ANGLE& aOrient, const VECTOR2I& aSize,
 enum GR_TEXT_H_ALIGN_T aH_justify, enum GR_TEXT_V_ALIGN_T aV_justify,
 int aWidth, bool aItalic, bool aBold, KIFONT::FONT* aFont,
 const KIFONT::METRICS& aFontMetrics )
{
 KIGFX::GAL_DISPLAY_OPTIONS empty_opts;
 bool fill_mode = true;
 
 if( !aFont )
 aFont = KIFONT::FONT::GetFont();
 
 if( aWidth == 0 ) // Use default values if aWidth == 0
 {
 if( aBold )
 aWidth = GetPenSizeForBold( std::min( aSize.x, aSize.y ) );
 else
 aWidth = GetPenSizeForNormal( std::min( aSize.x, aSize.y ) );
 }
 
 if( aWidth < 0 )
 {
 aWidth = -aWidth;
 fill_mode = false;
 }
 
 CALLBACK_GAL callback_gal( empty_opts,
 // Stroke callback
 [&]( const VECTOR2I& aPt1, const VECTOR2I& aPt2 )
 {
 if( fill_mode )
 GRLine( aDC, aPt1, aPt2, aWidth, aColor );
 else
 GRCSegm( aDC, aPt1, aPt2, aWidth, aColor );
 },
 // Polygon callback
 [&]( const SHAPE_LINE_CHAIN& aPoly )
 {
 GRClosedPoly( aDC, aPoly.PointCount(), aPoly.CPoints().data(), true, aColor );
 } );
 
 TEXT_ATTRIBUTES attributes;
 attributes.m_Angle = aOrient;
 attributes.m_StrokeWidth = aWidth;
 attributes.m_Italic = aItalic;
 attributes.m_Bold = aBold;
 attributes.m_Halign = aH_justify;
 attributes.m_Valign = aV_justify;
 attributes.m_Size = aSize;
 
 aFont->Draw( &callback_gal, aText, aPos, attributes, aFontMetrics );
}