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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 CERN
* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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
*/
#include <array>
#include <eda_draw_frame.h>
#include <gal/graphics_abstraction_layer.h>
#include <geometry/geometry_utils.h>
#include <origin_viewitem.h>
using namespace KIGFX;
ORIGIN_VIEWITEM::ORIGIN_VIEWITEM( const COLOR4D& aColor, MARKER_STYLE aStyle, int aSize,
const VECTOR2D& aPosition ) :
EDA_ITEM( nullptr, NOT_USED ), // never added to a BOARD/SCHEMATIC so it needs no type
m_position( aPosition ),
m_size( aSize ),
m_color( aColor ),
m_style( aStyle ),
m_drawAtZero( false )
{
}
ORIGIN_VIEWITEM::ORIGIN_VIEWITEM( const VECTOR2D& aPosition, EDA_ITEM_FLAGS flags ) :
EDA_ITEM( nullptr, NOT_USED ), // never added to a BOARD/SCHEMATIC so it needs no type
m_position( aPosition ),
m_size( NOT_USED ),
m_color( UNSPECIFIED_COLOR ),
m_style( NO_GRAPHIC ),
m_drawAtZero( false )
{
SetFlags( flags );
}
ORIGIN_VIEWITEM* ORIGIN_VIEWITEM::Clone() const
{
return new ORIGIN_VIEWITEM( m_color, m_style, m_size, m_position );
}
const BOX2I ORIGIN_VIEWITEM::ViewBBox() const
{
BOX2I bbox;
bbox.SetMaximum();
return bbox;
}
void ORIGIN_VIEWITEM::ViewDraw( int, VIEW* aView ) const
{
GAL* gal = aView->GetGAL();
// Nothing to do if the target shouldn't be drawn at 0,0 and that's where the target is.
if( !m_drawAtZero && ( m_position.x == 0 ) && ( m_position.y == 0 ) )
return;
gal->SetIsStroke( true );
gal->SetIsFill( false );
gal->SetLineWidth( 1 );
gal->SetStrokeColor( m_color );
VECTOR2D scaledSize = aView->ToWorld( VECTOR2D( m_size, m_size ), false );
// Draw a circle around the marker's center point if the style demands it
if( ( m_style == CIRCLE_CROSS ) || ( m_style == CIRCLE_DOT ) || ( m_style == CIRCLE_X ) )
gal->DrawCircle( m_position, fabs( scaledSize.x ) );
switch( m_style )
{
case NO_GRAPHIC:
break;
case CROSS:
case CIRCLE_CROSS:
gal->DrawLine( m_position - VECTOR2D( scaledSize.x, 0 ),
m_position + VECTOR2D( scaledSize.x, 0 ) );
gal->DrawLine( m_position - VECTOR2D( 0, scaledSize.y ),
m_position + VECTOR2D( 0, scaledSize.y ) );
break;
case DASH_LINE:
{
gal->DrawCircle( m_position, scaledSize.x / 4 );
VECTOR2D start( m_position );
VECTOR2D end( m_end );
BOX2I clip( VECTOR2I( start ), VECTOR2I( end.x - start.x, end.y - start.y ) );
clip.Normalize();
double theta = atan2( end.y - start.y, end.x - start.x );
std::array<double,2> strokes = { scaledSize.x, scaledSize.x / 2 };
for( size_t i = 0; i < 10000; ++i )
{
VECTOR2D next( start.x + strokes[ i % 2 ] * cos( theta ),
start.y + strokes[ i % 2 ] * sin( theta ) );
// Drawing each segment can be done rounded to ints.
VECTOR2I segStart( KiROUND( start.x ), KiROUND( start.y ) );
VECTOR2I segEnd( KiROUND( next.x ), KiROUND( next.y ) );
if( ClipLine( &clip, segStart.x, segStart.y, segEnd.x, segEnd.y ) )
break;
else if( i % 2 == 0 )
gal->DrawLine( segStart, segEnd );
start = next;
}
gal->DrawCircle( m_end, scaledSize.x / 4 );
break;
}
case X:
case CIRCLE_X:
gal->DrawLine( m_position - scaledSize, m_position + scaledSize );
scaledSize.y = -scaledSize.y;
gal->DrawLine( m_position - scaledSize, m_position + scaledSize );
break;
case DOT:
case CIRCLE_DOT:
gal->DrawCircle( m_position, scaledSize.x / 4 );
break;
}
}
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