kicad/common/preview_items/selection_area.cpp

98 lines
2.7 KiB
C++

/*
* 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 <view/view.h>
using namespace KIGFX::PREVIEW;
// Selection area colours
const COLOR4D SELECT_MODE_NORMAL( 0.3, 0.3, 0.7, 0.3 ); // Slight blue
const COLOR4D SELECT_MODE_ADDITIVE( 0.3, 0.7, 0.3, 0.3 ); // Slight green
const COLOR4D SELECT_MODE_SUBTRACT( 0.7, 0.3, 0.3, 0.3 ); // Slight red
const COLOR4D SELECT_OUTLINE_L2R( 1.0, 1.0, 0.4, 1.0 );
const COLOR4D SELECT_OUTLINE_R2L( 0.4, 0.4, 1.0, 1.0 );
SELECTION_AREA::SELECTION_AREA() :
m_additive( false ),
m_subtractive( false )
{
SetStrokeColor( SELECT_OUTLINE_L2R );
SetFillColor( SELECT_MODE_NORMAL );
}
void SELECTION_AREA::SetAdditive( bool aAdditive )
{
m_additive = aAdditive;
if( m_additive )
m_subtractive = false;
}
void SELECTION_AREA::SetSubtractive( bool aSubtractive )
{
m_subtractive = aSubtractive;
if ( m_subtractive )
m_additive = false;
}
const BOX2I SELECTION_AREA::ViewBBox() const
{
BOX2I tmp;
tmp.SetOrigin( m_origin );
tmp.SetEnd( m_end );
tmp.Normalize();
return tmp;
}
void SELECTION_AREA::drawPreviewShape( KIGFX::GAL& aGal ) const
{
// Set the fill of the selection rectangle
// based on the selection mode
if( m_additive )
{
aGal.SetFillColor( SELECT_MODE_ADDITIVE );
}
else if( m_subtractive )
{
aGal.SetFillColor( SELECT_MODE_SUBTRACT );
}
else
{
aGal.SetFillColor( SELECT_MODE_NORMAL );
}
// Set the stroke color to indicate window or crossing selection
aGal.SetStrokeColor( ( m_origin.x <= m_end.x ) ? SELECT_OUTLINE_L2R : SELECT_OUTLINE_R2L );
aGal.DrawRectangle( m_origin, m_end );
}