139 lines
4.0 KiB
C++
139 lines
4.0 KiB
C++
/*
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* This program source code file is part of KICAD, a free EDA CAD application.
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*
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* Copyright (C) 2021 Ola Rinta-Koski
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* Copyright (C) 2021-2024 Kicad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef GLYPH_H
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#define GLYPH_H
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#include <gal/gal.h>
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#include <memory>
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#include <math/box2.h>
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#include <geometry/shape_poly_set.h>
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#include <wx/debug.h>
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#include "../../libs/kimath/include/geometry/eda_angle.h"
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#if defined( _MSC_VER )
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#pragma warning( push )
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#pragma warning( disable : 4275 )
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#endif
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namespace KIFONT
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{
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constexpr int GLYPH_DEFAULT_DPI = 72; ///< FreeType default
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// The FreeType default of 72 DPI is not enough for outline decomposition;
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// so we'll use something larger than that.
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constexpr int GLYPH_RESOLUTION = 288;
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constexpr double GLYPH_SIZE_SCALER = GLYPH_DEFAULT_DPI / (double) GLYPH_RESOLUTION;
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class GAL_API GLYPH
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{
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public:
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virtual ~GLYPH()
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{}
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virtual bool IsOutline() const { return false; }
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virtual bool IsStroke() const { return false; }
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virtual BOX2D BoundingBox() = 0;
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};
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class GAL_API OUTLINE_GLYPH : public GLYPH, public SHAPE_POLY_SET
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{
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public:
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OUTLINE_GLYPH() :
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SHAPE_POLY_SET()
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{}
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OUTLINE_GLYPH( const OUTLINE_GLYPH& aGlyph ) :
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SHAPE_POLY_SET( aGlyph )
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{}
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OUTLINE_GLYPH( const SHAPE_POLY_SET& aPoly ) :
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SHAPE_POLY_SET( aPoly )
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{}
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bool IsOutline() const override { return true; }
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BOX2D BoundingBox() override;
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void Triangulate( std::function<void( const VECTOR2I& aPt1,
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const VECTOR2I& aPt2,
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const VECTOR2I& aPt3 )> aCallback ) const;
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void CacheTriangulation( bool aPartition = true, bool aSimplify = false ) override;
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/**
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* @return a set of triangulated polygons from the glyph. CacheTriangulation() will use this
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* data as hint data the next time around.
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*/
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std::vector<std::unique_ptr<SHAPE_POLY_SET::TRIANGULATED_POLYGON>> GetTriangulationData() const;
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/**
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* Cache the triangulation for the glyph from a known set of triangle indexes.
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* (See GetTriangulationData() above for more info.)
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*/
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void CacheTriangulation( std::vector<std::unique_ptr<SHAPE_POLY_SET::TRIANGULATED_POLYGON>>& aHintData );
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};
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class GAL_API STROKE_GLYPH : public GLYPH, public std::vector<std::vector<VECTOR2D>>
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{
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public:
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STROKE_GLYPH()
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{}
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STROKE_GLYPH( const STROKE_GLYPH& aGlyph );
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bool IsStroke() const override { return true; }
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void AddPoint( const VECTOR2D& aPoint );
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void RaisePen();
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void Finalize();
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BOX2D BoundingBox() override { return m_boundingBox; }
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void SetBoundingBox( const BOX2D& bbox ) { m_boundingBox = bbox; }
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std::unique_ptr<GLYPH> Transform( const VECTOR2D& aGlyphSize, const VECTOR2I& aOffset,
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double aTilt, const EDA_ANGLE& aAngle, bool aMirror,
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const VECTOR2I& aOrigin );
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void Move( const VECTOR2I& aOffset );
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private:
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bool m_penIsDown = false;
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BOX2D m_boundingBox;
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};
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} // namespace KIFONT
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#if defined( _MSC_VER )
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#pragma warning( pop )
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#endif
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#endif // GLYPH_H
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