mirror of
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187 lines
5.7 KiB
C++
187 lines
5.7 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/snap_indicator.h"
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#include <gal/graphics_abstraction_layer.h>
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using namespace KIGFX;
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SNAP_INDICATOR::SNAP_INDICATOR( const COLOR4D& aColor, int aSize, const VECTOR2D& aPosition ) :
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ORIGIN_VIEWITEM( aColor, CIRCLE_CROSS, aSize, aPosition )
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{
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}
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SNAP_INDICATOR* SNAP_INDICATOR::Clone() const
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{
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return new SNAP_INDICATOR( m_color, m_size, m_position );
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}
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const BOX2I SNAP_INDICATOR::ViewBBox() const
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{
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return ORIGIN_VIEWITEM::ViewBBox();
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}
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static void DrawSnapNode( GAL& aGal, const VECTOR2I& aPosition, int aNodeRadius )
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{
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aGal.SetIsFill( true );
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aGal.SetIsStroke( false );
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aGal.DrawCircle( aPosition, aNodeRadius );
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aGal.SetIsFill( false );
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aGal.SetIsStroke( true );
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}
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static void DrawCornerIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int nodeRad = aSize / 8;
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const VECTOR2I corner =
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aPosition - VECTOR2I( aSize / 2, aSize / 2 ) + VECTOR2I( nodeRad, nodeRad );
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aGal.DrawLine( corner, corner + VECTOR2I( aSize - nodeRad, 0 ) );
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aGal.DrawLine( corner, corner + VECTOR2I( 0, aSize - nodeRad ) );
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DrawSnapNode( aGal, corner, nodeRad );
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}
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static void DrawLineEndpointIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int nodeRadius = aSize / 8;
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const VECTOR2I lineStart = aPosition - VECTOR2I( aSize / 2 - nodeRadius, 0 );
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DrawSnapNode( aGal, lineStart, nodeRadius );
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aGal.DrawLine( lineStart, lineStart + VECTOR2I( aSize - nodeRadius, 0 ) );
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}
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static void DrawMidpointIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int nodeRadius = aSize / 8;
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DrawSnapNode( aGal, aPosition, nodeRadius );
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aGal.DrawLine( aPosition - VECTOR2I( aSize / 2, 0 ), aPosition + VECTOR2I( aSize / 2, 0 ) );
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}
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static void DrawCentrePointIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int ringRadius = aSize / 4;
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aGal.DrawCircle( aPosition, ringRadius );
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aGal.DrawLine( aPosition - VECTOR2I( aSize / 2, 0 ), aPosition + VECTOR2I( aSize / 2, 0 ) );
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aGal.DrawLine( aPosition - VECTOR2I( 0, aSize / 2 ), aPosition + VECTOR2I( 0, aSize / 2 ) );
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}
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static void DrawQuadrantPointIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int nodeRadius = aSize / 8;
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const VECTOR2I quadPoint = aPosition - VECTOR2I( 0, aSize / 2 - nodeRadius );
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const int arcRadius = aSize - nodeRadius * 2;
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DrawSnapNode( aGal, quadPoint, nodeRadius );
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// Most of the top half of a circle, passing through the node centre
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const VECTOR2I arcCenter = quadPoint + VECTOR2I( 0, arcRadius );
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aGal.DrawArc( arcCenter, arcRadius, EDA_ANGLE( -160, EDA_ANGLE_T::DEGREES_T ),
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EDA_ANGLE( 140, EDA_ANGLE_T::DEGREES_T ) );
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}
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static void DrawIntersectionIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int nodeRadius = aSize / 8;
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DrawSnapNode( aGal, aPosition, nodeRadius );
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// Slightly squashed X shape
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VECTOR2I xLeg = VECTOR2I( aSize / 2, aSize / 3 );
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aGal.DrawLine( aPosition - xLeg, aPosition + xLeg );
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xLeg.y = -xLeg.y;
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aGal.DrawLine( aPosition - xLeg, aPosition + xLeg );
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}
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static void DrawOnElementIcon( GAL& aGal, const VECTOR2I& aPosition, int aSize )
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{
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const int nodeRadius = aSize / 8;
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// A bit like midpoint by off to one side
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DrawSnapNode( aGal, aPosition + VECTOR2I( aSize / 4, 0 ), nodeRadius );
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aGal.DrawLine( aPosition - VECTOR2I( aSize / 2, 0 ), aPosition + VECTOR2I( aSize / 2, 0 ) );
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}
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void SNAP_INDICATOR::ViewDraw( int, VIEW* aView ) const
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{
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GAL& gal = *aView->GetGAL();
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// Draw the origin marker
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ORIGIN_VIEWITEM::ViewDraw( 0, aView );
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gal.SetFillColor( m_color );
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// Put the icon near the x-line, so it doesn't overlap with the ruler helpers
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const VECTOR2I typeIconPos = m_position + aView->ToWorld( { 24, 10 }, false );
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const int size = aView->ToWorld( 16 );
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// For now, choose the first type that is set
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if( m_snapTypes & POINT_TYPE::PT_CORNER )
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{
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DrawCornerIcon( gal, typeIconPos, size );
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}
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else if( m_snapTypes & POINT_TYPE::PT_END )
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{
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DrawLineEndpointIcon( gal, typeIconPos, size );
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}
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else if( m_snapTypes & POINT_TYPE::PT_MID )
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{
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DrawMidpointIcon( gal, typeIconPos, size );
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}
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else if( m_snapTypes & POINT_TYPE::PT_CENTER )
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{
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DrawCentrePointIcon( gal, typeIconPos, size );
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}
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else if( m_snapTypes & POINT_TYPE::PT_QUADRANT )
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{
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DrawQuadrantPointIcon( gal, typeIconPos, size );
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}
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else if( m_snapTypes & POINT_TYPE::PT_INTERSECTION )
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{
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DrawIntersectionIcon( gal, typeIconPos, size );
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}
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else if( m_snapTypes & POINT_TYPE::PT_ON_ELEMENT )
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{
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DrawOnElementIcon( gal, typeIconPos, size );
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}
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}
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