zoom_menu.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015 CERN
 * Copyright (C) 2015-2020 KiCad Developers, see AUTHORS.txt for contributors.
 * @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 <tool/zoom_menu.h>
#include <id.h>
#include <eda_draw_frame.h>
#include <settings/app_settings.h>
#include <tool/actions.h>
#include <gal/graphics_abstraction_layer.h>
#include <bitmaps.h>
#include <functional>
 
using namespace std::placeholders;
 
ZOOM_MENU::ZOOM_MENU( EDA_DRAW_FRAME* aParent ) :
 ACTION_MENU( true ),
 m_parent( aParent )
{
 UpdateTitle();
 SetIcon( BITMAPS::zoom_selection );
}
 
 
OPT_TOOL_EVENT ZOOM_MENU::eventHandler( const wxMenuEvent& aEvent )
{
 OPT_TOOL_EVENT event( ACTIONS::zoomPreset.MakeEvent() );
 event->SetParameter( (intptr_t) aEvent.GetId() - ID_POPUP_ZOOM_LEVEL_START );
 return event;
}
 
 
void ZOOM_MENU::UpdateTitle()
{
 SetTitle( _( "Zoom" ) );
}
 
 
void ZOOM_MENU::update()
{
 Clear();
 
 int ii = ID_POPUP_ZOOM_LEVEL_START + 1; // 0 reserved for menus which support auto-zoom
 
 for( double factor : m_parent->config()->m_Window.zoom_factors )
 Append( ii++, wxString::Format( _( "Zoom: %.2f" ), factor ), wxEmptyString, wxITEM_CHECK );
 
 double zoom = m_parent->GetCanvas()->GetGAL()->GetZoomFactor();
 
 const std::vector<double>& zoomList = m_parent->config()->m_Window.zoom_factors;
 
 for( size_t jj = 0; jj < zoomList.size(); ++jj )
 {
 // Search for a value near the current zoom setting:
 double rel_error = std::fabs( zoomList[jj] - zoom ) / zoom;
 // IDs start with 1 (leaving 0 for auto-zoom)
 Check( ID_POPUP_ZOOM_LEVEL_START + jj + 1, rel_error < 0.1 );
 }
}