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0b2d4d4879
Recommendation is to avoid using the year nomenclature as this information is already encoded in the git repo. Avoids needing to repeatly update. Also updates AUTHORS.txt from current repo with contributor names
76 lines
2.6 KiB
C++
76 lines
2.6 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 The 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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#include "preview_items/item_drawing_utils.h"
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#include <array>
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#include <geometry/geometry_utils.h>
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#include <geometry/seg.h>
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using namespace KIGFX;
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void KIGFX::DrawCross( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int size = aSize / 2;
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aGal.DrawLine( aPosition - VECTOR2I( size, 0 ), aPosition + VECTOR2I( size, 0 ) );
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aGal.DrawLine( aPosition - VECTOR2I( 0, size ), aPosition + VECTOR2I( 0, size ) );
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}
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void KIGFX::DrawDashedLine( GAL& aGal, const SEG& aSeg, double aDashSize )
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{
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const std::array<double, 2> strokes = { aDashSize, aDashSize / 2 };
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const double dashCycleLen = strokes[0] + strokes[1];
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// The dash cycle length must be at least 1 pixel.
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wxASSERT( dashCycleLen * aGal.GetWorldScale() > 1 );
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const BOX2I clip = BOX2I::ByCorners( aSeg.A, aSeg.B );
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const double theta = atan2( aSeg.B.y - aSeg.A.y, aSeg.B.x - aSeg.A.x );
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const VECTOR2D cycleVec{
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dashCycleLen * cos( theta ),
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dashCycleLen * sin( theta ),
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};
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const VECTOR2D dashVec{
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strokes[0] * cos( theta ),
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strokes[0] * sin( theta ),
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};
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unsigned cyclei = 0;
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while( true )
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{
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const VECTOR2D dashStart = aSeg.A + cycleVec * cyclei;
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const VECTOR2D dashEnd = dashStart + dashVec;
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// Drawing each segment can be done rounded to ints.
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SEG dashSeg{ KiROUND( dashStart ), KiROUND( dashEnd ) };
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if( ClipLine( &clip, dashSeg.A.x, dashSeg.A.y, dashSeg.B.x, dashSeg.B.y ) )
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break;
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aGal.DrawLine( dashSeg.A, dashSeg.B );
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++cyclei;
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}
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} |