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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
105 lines
3.0 KiB
C++
105 lines
3.0 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 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/centreline_rect_item.h>
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#include <preview_items/two_point_geom_manager.h>
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#include <gal/graphics_abstraction_layer.h>
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#include <view/view.h>
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#include <trigo.h>
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using namespace KIGFX::PREVIEW;
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static SHAPE_POLY_SET getRectangleAlongCentreLine( const VECTOR2D& aClStart,
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const VECTOR2D& aClEnd, double aAspect )
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{
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SHAPE_POLY_SET poly;
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poly.NewOutline();
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/*
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* The point layout of the rectangle goes like this,
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* but start/end don't have to be horz/vert
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*
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* 0 ---------------- 1 -----
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* | | ^
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* s--------cl------->e |cl|/aspect
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* | | v
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* 3----------------- 2 -----
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*/
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// vector down the centre line of the rectangle
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VECTOR2D cl = aClEnd - aClStart;
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// don't allow degenerate polygons
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if( cl.x == 0 && cl.y == 0 )
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cl.x = 1.0;
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// the "side" of the rectangle is the centre line rotated by 90 deg
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// and scaled by the aspect ratio
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VECTOR2D side = cl;
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RotatePoint( side, -ANGLE_90 );
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side = side * aAspect;
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VECTOR2D pt = aClStart + ( side / 2.0 );
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poly.Append( pt );
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pt += cl;
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poly.Append( pt );
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pt -= side;
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poly.Append( pt );
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pt -= cl;
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poly.Append( pt );
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return poly;
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}
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CENTRELINE_RECT_ITEM::CENTRELINE_RECT_ITEM( const TWO_POINT_GEOMETRY_MANAGER& aGeomMgr,
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double aAspect ) :
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m_geomMgr( aGeomMgr ),
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m_aspect( aAspect )
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{
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}
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SHAPE_POLY_SET CENTRELINE_RECT_ITEM::getOutline() const
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{
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return getRectangleAlongCentreLine( m_geomMgr.GetOrigin(), m_geomMgr.GetEnd(), m_aspect );
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}
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const BOX2I CENTRELINE_RECT_ITEM::ViewBBox() const
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{
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return getOutline().BBox();
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}
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void CENTRELINE_RECT_ITEM::drawPreviewShape( KIGFX::VIEW* aView ) const
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{
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KIGFX::GAL& gal = *aView->GetGAL();
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gal.DrawLine( m_geomMgr.GetOrigin(), m_geomMgr.GetEnd() );
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gal.DrawPolygon( getOutline() );
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}
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