symbol_diff_widget.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2023 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#include <widgets/symbol_diff_widget.h>
#include <sch_painter.h>
#include <eeschema_settings.h>
#include <settings/settings_manager.h>
#include <sch_view.h>
#include <wx/sizer.h>
#include <wx/stattext.h>
#include <wx/slider.h>
 
 
SYMBOL_DIFF_WIDGET::SYMBOL_DIFF_WIDGET( wxWindow* aParent,
 EDA_DRAW_PANEL_GAL::GAL_TYPE aCanvasType ) :
 SYMBOL_PREVIEW_WIDGET( aParent, nullptr, false, aCanvasType ),
 m_libraryItem( nullptr ),
 m_slider( nullptr )
{
 wxBoxSizer* bottomSizer = new wxBoxSizer( wxHORIZONTAL );
 
 wxStaticText* schLabel = new wxStaticText( this, wxID_ANY, _( "Schematic" ) );
 wxStaticText* libLabel = new wxStaticText( this, wxID_ANY, _( "Library" ) );
 m_slider = new wxSlider( this, wxID_ANY, 50, 0, 100 );
 
 bottomSizer->Add( schLabel, 0, wxLEFT | wxRIGHT | wxBOTTOM | wxALIGN_CENTRE_VERTICAL, 6 );
 bottomSizer->Add( m_slider, 1, wxLEFT | wxRIGHT | wxALIGN_BOTTOM, 30 );
 bottomSizer->Add( libLabel, 0, wxLEFT | wxRIGHT | wxBOTTOM | wxALIGN_CENTRE_VERTICAL, 6 );
 
 m_outerSizer->Add( bottomSizer, 0, wxTOP | wxLEFT | wxRIGHT | wxEXPAND, 10 );
 
 Layout();
 
 m_slider->Bind( wxEVT_SCROLL_TOP, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_BOTTOM, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_LINEUP, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_LINEDOWN, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_PAGEUP, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_PAGEDOWN, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_THUMBTRACK, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_THUMBRELEASE, &SYMBOL_DIFF_WIDGET::onSlider, this );
 m_slider->Bind( wxEVT_SCROLL_CHANGED, &SYMBOL_DIFF_WIDGET::onSlider, this );
}
 
 
SYMBOL_DIFF_WIDGET::~SYMBOL_DIFF_WIDGET()
{
 delete m_libraryItem;
}
 
 
void SYMBOL_DIFF_WIDGET::DisplayDiff( LIB_SYMBOL* aSchSymbol, LIB_SYMBOL* aLibSymbol, int aUnit,
 int aConvert )
{
 KIGFX::VIEW* view = m_preview->GetView();
 
 if( m_previewItem )
 {
 view->Remove( m_previewItem );
 delete m_previewItem;
 m_previewItem = nullptr;
 
 wxASSERT( m_libraryItem );
 
 view->Remove( m_libraryItem );
 delete m_libraryItem;
 m_libraryItem = nullptr;
 }
 
 if( aSchSymbol )
 {
 m_previewItem = aSchSymbol;
 
 // For symbols having a De Morgan body style, use the first style
 auto settings = static_cast<SCH_RENDER_SETTINGS*>( view->GetPainter()->GetSettings() );
 
 settings->m_ShowUnit = ( m_previewItem->IsMulti() && !aUnit ) ? 1 : aUnit;
 settings->m_ShowBodyStyle = ( m_previewItem->HasAlternateBodyStyle() && !aConvert ) ? 1 : aConvert;
 
 view->Add( m_previewItem );
 
 // Get the symbol size, in internal units
 m_itemBBox = m_previewItem->GetUnitBoundingBox( settings->m_ShowUnit,
 settings->m_ShowBodyStyle );
 
 // Calculate the draw scale to fit the drawing area
 fitOnDrawArea();
 
 wxASSERT( aLibSymbol );
 
 m_libraryItem = aLibSymbol;
 view->Add( m_libraryItem );
 }
 
 wxScrollEvent dummy;
 onSlider( dummy );
 
 m_preview->Show();
 Layout();
}
 
 
void SYMBOL_DIFF_WIDGET::onSlider( wxScrollEvent& aEvent )
{
 KIGFX::VIEW* view = m_preview->GetView();
 double pct = (double) m_slider->GetValue() / 100.0;
 
 if( m_previewItem )
 {
 double val;
 
 if( pct < 0.5 )
 val = 0.0;
 else
 val = ( pct - 0.5 ) * 2;
 
 m_previewItem->SetForcedTransparency( val );
 view->Update( m_previewItem );
 
 for( SCH_ITEM& child : m_previewItem->GetDrawItems() )
 {
 child.SetForcedTransparency( val );
 view->Update( &child );
 }
 }
 
 if( m_libraryItem )
 {
 double val;
 
 if( pct > 0.5 )
 val = 0.0;
 else
 val = 1.0 - ( pct * 2 );
 
 m_libraryItem->SetForcedTransparency( val );
 view->Update( m_libraryItem );
 
 for( SCH_ITEM& child : m_libraryItem->GetDrawItems() )
 {
 child.SetForcedTransparency( val );
 view->Update( &child );
 }
 }
 
 m_preview->ForceRefresh();
 
 aEvent.Skip();
}