draw_context.h

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/*
 * This program source code file is part of KICAD, a free EDA CAD application.
 *
 * Copyright The 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
 */
 
#ifndef PREVIEW_PREVIEW_DRAW_CONTEXT__H_
#define PREVIEW_PREVIEW_DRAW_CONTEXT__H_
 
#include <gal/painter.h>
#include <math/vector2d.h>
 
namespace KIGFX
{
class GAL;
class VIEW;
 
namespace PREVIEW
{
class DRAW_CONTEXT
{
public:
    DRAW_CONTEXT( KIGFX::VIEW& aView );

    void DrawCircle( const VECTOR2I& aOrigin, double aRad, bool aDeEmphasised );

    void DrawCircleDashed( const VECTOR2I& aOrigin, double aRad, double aStepAngle,
                           double aFillAngle, bool aDeEmphasised );

    void DrawLine( const VECTOR2I& aStart, const VECTOR2I& aEnd, bool aDeEmphasised );

    void DrawLineDashed( const VECTOR2I& aStart, const VECTOR2I& aEn, int aDashStep,
                         int aDashFill, bool aDeEmphasised );

    void DrawLineWithAngleHighlight(
            const VECTOR2I& aStart, const VECTOR2I& aEnd, bool aDeEmphasised );

    void DrawArcWithAngleHighlight( const VECTOR2I& aOrigin, double aRad, double aStartAngle,
                                    double aEndAngle );
 
private:
    COLOR4D getSpecialAngleColour() const;

    KIGFX::GAL& m_gal;
 
    const KIGFX::RENDER_SETTINGS& m_render_settings;

    GAL_LAYER_ID m_currLayer;

    float m_lineWidth;
};
 
} // namespace PREVIEW
} // namespace KIGFX
 
#endif // PREVIEW_PREVIEW_DRAW_CONTEXT__H_