ds_proxy_view_item.cpp

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/*
 * This program source code file is part of KICAD, a free EDA CAD application.
 *
 * Copyright (C) 2013-2020 CERN
 * @author Maciej Suminski <[email protected]>
 *
 * 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 <layer_ids.h>
#include <page_info.h>
#include <drawing_sheet/ds_proxy_view_item.h>
#include <drawing_sheet/ds_draw_item.h>
#include <drawing_sheet/ds_data_item.h>
#include <drawing_sheet/ds_painter.h>
#include <project.h>
#include <view/view.h>

using namespace KIGFX;

DS_PROXY_VIEW_ITEM::DS_PROXY_VIEW_ITEM( int aMils2IUscalefactor, const PAGE_INFO* aPageInfo,
 const PROJECT* aProject, const TITLE_BLOCK* aTitleBlock ) :
 EDA_ITEM( NOT_USED ), // this item is never added to a BOARD so it needs no type
 m_mils2IUscalefactor( aMils2IUscalefactor ),
 m_titleBlock( aTitleBlock ),
 m_pageInfo( aPageInfo ),
 m_pageNumber( "1" ),
 m_sheetCount( 1 ),
 m_isFirstPage( false ),
 m_project( aProject ),
 m_colorLayer( LAYER_DRAWINGSHEET ),
 m_pageBorderColorLayer( LAYER_GRID )
{
}


const BOX2I DS_PROXY_VIEW_ITEM::ViewBBox() const
{
 BOX2I bbox;

 if( m_pageInfo != NULL )
 {
 bbox.SetOrigin( VECTOR2I( 0, 0 ) );
 bbox.SetEnd( VECTOR2I( m_pageInfo->GetWidthMils() * m_mils2IUscalefactor,
 m_pageInfo->GetHeightMils() * m_mils2IUscalefactor ) );
 }
 else
 {
 bbox.SetMaximum();
 }

 return bbox;
}


void DS_PROXY_VIEW_ITEM::buildDrawList( VIEW* aView, DS_DRAW_ITEM_LIST* aDrawList ) const
{
 RENDER_SETTINGS* settings = aView->GetPainter()->GetSettings();
 wxString fileName( m_fileName.c_str(), wxConvUTF8 );
 wxString sheetName( m_sheetName.c_str(), wxConvUTF8 );

 aDrawList->SetDefaultPenSize( (int) settings->GetDrawingSheetLineWidth() );
 // Adjust the scaling factor: drawing sheet item coordinates and sizes are stored in mils,
 // and must be scaled to the same units as the caller
 aDrawList->SetMilsToIUfactor( m_mils2IUscalefactor );
 aDrawList->SetIsFirstPage( m_isFirstPage );
 aDrawList->SetPageNumber( m_pageNumber );
 aDrawList->SetSheetCount( m_sheetCount );
 aDrawList->SetFileName( fileName );
 aDrawList->SetSheetName( sheetName );
 aDrawList->SetProject( m_project );

 aDrawList->BuildDrawItemsList( *m_pageInfo, *m_titleBlock );
}


void DS_PROXY_VIEW_ITEM::ViewDraw( int aLayer, VIEW* aView ) const
{
 GAL* gal = aView->GetGAL();
 RENDER_SETTINGS* settings = aView->GetPainter()->GetSettings();
 DS_DRAW_ITEM_LIST drawList;

 buildDrawList( aView, &drawList );

 // Draw the title block normally even if the view is flipped
 bool flipped = gal->IsFlippedX();

 if( flipped )
 {
 gal->Save();
 gal->Translate( VECTOR2D( m_pageInfo->GetWidthMils() * m_mils2IUscalefactor, 0 ) );
 gal->Scale( VECTOR2D( -1.0, 1.0 ) );
 }

 DS_PAINTER ws_painter( gal );
 auto ws_settings = static_cast<DS_RENDER_SETTINGS*>( ws_painter.GetSettings() );

 ws_settings->SetNormalColor( settings->GetLayerColor( m_colorLayer ) );
 ws_settings->SetSelectedColor( settings->GetLayerColor( LAYER_SELECT_OVERLAY ) );
 ws_settings->SetBrightenedColor( settings->GetLayerColor( LAYER_BRIGHTENED ) );
 ws_settings->SetPageBorderColor( settings->GetLayerColor( m_pageBorderColorLayer ) );

 // Draw all the components that make the drawing sheet
 for( DS_DRAW_ITEM_BASE* item = drawList.GetFirst(); item; item = drawList.GetNext() )
 ws_painter.Draw( item, LAYER_DRAWINGSHEET );

 // Draw gray line that outlines the sheet size
 if( settings->GetShowPageLimits() )
 ws_painter.DrawBorder( m_pageInfo, m_mils2IUscalefactor );

 if( flipped )
 gal->Restore();
}


void DS_PROXY_VIEW_ITEM::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 1;
 aLayers[0] = LAYER_DRAWINGSHEET;
}


bool DS_PROXY_VIEW_ITEM::HitTestDrawingSheetItems( VIEW* aView, const wxPoint& aPosition )
{
 int accuracy = (int) aView->ToWorld( 5.0 ); // five pixels at current zoom
 DS_DRAW_ITEM_LIST drawList;

 buildDrawList( aView, &drawList );

 for( DS_DRAW_ITEM_BASE* item = drawList.GetFirst(); item; item = drawList.GetNext() )
 {
 if( item->HitTest( aPosition, accuracy ) )
 return true;
 }

 return false;
}