165 lines
4.4 KiB
C++
165 lines
4.4 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 (C) 2018-2021 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 <functional>
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using namespace std::placeholders;
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#include <gal/graphics_abstraction_layer.h>
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#include <math/util.h> // for KiROUND
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#include <math/vector2d.h>
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#include <tool/tool_manager.h>
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#include <view/view.h>
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#include <tool/grid_helper.h>
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#include <settings/app_settings.h>
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GRID_HELPER::GRID_HELPER( TOOL_MANAGER* aToolMgr ) :
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m_toolMgr( aToolMgr )
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{
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m_maskTypes = ALL;
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m_enableSnap = true;
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m_enableSnapLine = true;
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m_enableGrid = true;
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m_snapItem = nullptr;
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}
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GRID_HELPER::~GRID_HELPER()
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{
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}
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VECTOR2I GRID_HELPER::GetGrid() const
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{
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VECTOR2D size = m_toolMgr->GetView()->GetGAL()->GetGridSize();
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return VECTOR2I( KiROUND( size.x ), KiROUND( size.y ) );
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}
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VECTOR2D GRID_HELPER::GetVisibleGrid() const
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{
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return m_toolMgr->GetView()->GetGAL()->GetVisibleGridSize();
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}
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VECTOR2I GRID_HELPER::GetOrigin() const
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{
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VECTOR2D origin = m_toolMgr->GetView()->GetGAL()->GetGridOrigin();
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return VECTOR2I( origin );
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}
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GRID_HELPER_GRIDS GRID_HELPER::GetSelectionGrid( const SELECTION& aSelection ) const
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{
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GRID_HELPER_GRIDS grid = GetItemGrid( aSelection.Front() );
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// Find the largest grid of all the items and use that
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for( EDA_ITEM* item : aSelection )
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{
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GRID_HELPER_GRIDS itemGrid = GetItemGrid( item );
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if( GetGridSize( itemGrid ) > GetGridSize( grid ) )
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grid = itemGrid;
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}
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return grid;
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}
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VECTOR2D GRID_HELPER::GetGridSize( GRID_HELPER_GRIDS aGrid ) const
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{
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return m_toolMgr->GetView()->GetGAL()->GetGridSize();
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}
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void GRID_HELPER::SetAuxAxes( bool aEnable, const VECTOR2I& aOrigin )
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{
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if( aEnable )
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{
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m_auxAxis = aOrigin;
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m_viewAxis.SetPosition( aOrigin );
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m_toolMgr->GetView()->SetVisible( &m_viewAxis, true );
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}
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else
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{
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m_auxAxis = std::optional<VECTOR2I>();
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m_toolMgr->GetView()->SetVisible( &m_viewAxis, false );
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}
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}
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VECTOR2I GRID_HELPER::AlignGrid( const VECTOR2I& aPoint ) const
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{
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return computeNearest( aPoint, GetGrid(), GetOrigin() );
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}
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VECTOR2I GRID_HELPER::AlignGrid( const VECTOR2I& aPoint, const VECTOR2D& aGrid,
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const VECTOR2D& aOffset ) const
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{
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return computeNearest( aPoint, aGrid, aOffset );
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}
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VECTOR2I GRID_HELPER::computeNearest( const VECTOR2I& aPoint, const VECTOR2I& aGrid,
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const VECTOR2I& aOffset ) const
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{
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return VECTOR2I( KiROUND( (double) ( aPoint.x - aOffset.x ) / aGrid.x ) * aGrid.x + aOffset.x,
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KiROUND( (double) ( aPoint.y - aOffset.y ) / aGrid.y ) * aGrid.y + aOffset.y );
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}
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VECTOR2I GRID_HELPER::Align( const VECTOR2I& aPoint ) const
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{
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return Align( aPoint, GetGrid(), GetOrigin() );
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}
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VECTOR2I GRID_HELPER::Align( const VECTOR2I& aPoint, const VECTOR2D& aGrid,
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const VECTOR2D& aOffset ) const
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{
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if( !canUseGrid() )
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return aPoint;
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VECTOR2I nearest = AlignGrid( aPoint, aGrid, aOffset );
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if( !m_auxAxis )
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return nearest;
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if( std::abs( m_auxAxis->x - aPoint.x ) < std::abs( nearest.x - aPoint.x ) )
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nearest.x = m_auxAxis->x;
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if( std::abs( m_auxAxis->y - aPoint.y ) < std::abs( nearest.y - aPoint.y ) )
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nearest.y = m_auxAxis->y;
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return nearest;
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}
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bool GRID_HELPER::canUseGrid() const
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{
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return m_enableGrid && m_toolMgr->GetView()->GetGAL()->GetGridSnapping();
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} |