kicad/common/preview_items/selection_area.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@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 <preview_items/selection_area.h>
#include <gal/graphics_abstraction_layer.h>
#include <painter.h>
#include <view/view.h>
using namespace KIGFX::PREVIEW;
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using KIGFX::COLOR4D;
struct SELECTION_COLORS
{
COLOR4D normal;
COLOR4D additive;
COLOR4D subtract;
COLOR4D exclusiveOr;
COLOR4D outline_l2r;
COLOR4D outline_r2l;
};
static const SELECTION_COLORS selectionColorScheme[2] = {
{ // dark background
COLOR4D( 0.3, 0.3, 0.7, 0.3 ), // Slight blue
COLOR4D( 0.3, 0.7, 0.3, 0.3 ), // Slight green
COLOR4D( 0.7, 0.3, 0.3, 0.3 ), // Slight red
COLOR4D( 0.7, 0.3, 0.3, 0.3 ), // Slight red
COLOR4D( 1.0, 1.0, 0.4, 1.0 ), // yellow
COLOR4D( 0.4, 0.4, 1.0, 1.0 ) // blue
},
{ // bright background
COLOR4D( 0.5, 0.3, 1.0, 0.5 ), // Slight blue
COLOR4D( 0.5, 1.0, 0.5, 0.5 ), // Slight green
COLOR4D( 1.0, 0.5, 0.5, 0.5 ), // Slight red
COLOR4D( 1.0, 0.5, 0.5, 0.5 ), // Slight red
COLOR4D( 0.7, 0.7, 0.0, 1.0 ), // yellow
COLOR4D( 0.1, 0.1, 1.0, 1.0 ) // blue
}
};
SELECTION_AREA::SELECTION_AREA() :
m_additive( false ),
m_subtractive( false ),
m_exclusiveOr( false )
{
}
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const BOX2I SELECTION_AREA::ViewBBox() const
{
BOX2I tmp;
tmp.SetOrigin( m_origin );
tmp.SetEnd( m_end );
tmp.Normalize();
return tmp;
}
void SELECTION_AREA::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
{
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KIGFX::GAL& gal = *aView->GetGAL();
RENDER_SETTINGS* settings = aView->GetPainter()->GetSettings();
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const SELECTION_COLORS& scheme = settings->IsBackgroundDark() ? selectionColorScheme[0]
: selectionColorScheme[1];
// Set the fill of the selection rectangle
// based on the selection mode
if( m_additive )
gal.SetFillColor( scheme.additive );
else if( m_subtractive )
gal.SetFillColor( scheme.subtract );
else if( m_exclusiveOr )
gal.SetFillColor( scheme.exclusiveOr );
else
gal.SetFillColor( scheme.normal );
gal.SetIsStroke( true );
gal.SetIsFill( true );
// force 1-pixel-wide line
gal.SetLineWidth( 0.0 );
// Set the stroke color to indicate window or crossing selection
bool windowSelection = ( m_origin.x <= m_end.x ) ? true : false;
if( aView->IsMirroredX() )
windowSelection = !windowSelection;
gal.SetStrokeColor( windowSelection ? scheme.outline_l2r : scheme.outline_r2l );
gal.SetIsFill( false );
gal.DrawRectangle( m_origin, m_end );
gal.SetIsFill( true );
// draw the fill as the second object so that Z test will not clamp
// the single-pixel-wide rectangle sides
gal.DrawRectangle( m_origin, m_end );
}