stroke_font.h

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/*
 * This program source code file is part of KICAD, a free EDA CAD application.
 *
 * Copyright (C) 2012 Torsten Hueter, torstenhtr <at> gmx.de
 * Copyright (C) 2013 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Maciej Suminski <[email protected]>
 *
 * Stroke font class
 *
 * 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, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef STROKE_FONT_H
#define STROKE_FONT_H
 
#include <gal/gal.h>
#include <map>
#include <deque>
#include <algorithm>
#include <core/utf8.h>
#include <math/box2.h>
#include <font/font.h>
 
namespace KIGFX
{
class GAL;
}
 
namespace KIFONT
{
class GAL_API STROKE_FONT : public FONT
{
public:
    STROKE_FONT();
 
    bool IsStroke() const override { return true; }

    static STROKE_FONT* LoadFont( const wxString& aFontName );

    double GetInterline( double aGlyphHeight, const METRICS& aFontMetrics ) const override;
 
    double GetSuperSubSizeMultiplier() const override { return m_superSubSize; }
 
    double GetSuperSubBaselineOffset( TEXT_STYLE_FLAGS aTextStyle ) const override
    {
        if( IsSubscript( aTextStyle ) )
            return m_subscriptBaselineOffset;
        else if( IsSuperscript( aTextStyle ) )
            return m_superscriptBaselineOffset;
 
        return 0.0;
    }
 
    VECTOR2I GetTextAsGlyphs( BOX2I* aBoundingBox, std::vector<std::unique_ptr<GLYPH>>* aGlyphs,
                              const wxString& aText, const VECTOR2I& aSize,
                              const VECTOR2I& aPosition, const EDA_ANGLE& aAngle, bool aMirror,
                              const VECTOR2I& aOrigin, TEXT_STYLE_FLAGS aTextStyle ) const override;
 
    unsigned GetGlyphCount() const;
 
    const STROKE_GLYPH* GetGlyph( unsigned aIndex ) const;
 
    const BOX2D& GetGlyphBoundingBox( unsigned aIndex ) const;
 
private:
    void loadNewStrokeFont( const char* const aNewStrokeFont[], int aNewStrokeFontSize );
 
private:
    static constexpr double m_superSubSize = 0.8;
    static constexpr double m_subscriptBaselineOffset = 0.15;
    static constexpr double m_superscriptBaselineOffset = -0.35;
 
    const std::vector<std::shared_ptr<GLYPH>>* m_glyphs;
    const std::vector<BOX2D>*                  m_glyphBoundingBoxes;
    double                                     m_maxGlyphWidth;
};
 
} //namespace KIFONT
 
#endif // STROKE_FONT_H