227 lines
6.8 KiB
C++
227 lines
6.8 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 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 modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "symbol_preview_widget.h"
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#include <wx/stattext.h>
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#include <wx/sizer.h>
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#include <kiway.h>
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#include <sch_view.h>
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#include <gal/gal_display_options.h>
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#include <class_libentry.h>
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#include <symbol_lib_table.h>
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#include <sch_preview_panel.h>
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#include <pgm_base.h>
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#include <sch_painter.h>
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#include <draw_frame.h>
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SYMBOL_PREVIEW_WIDGET::SYMBOL_PREVIEW_WIDGET( wxWindow* aParent, KIWAY& aKiway,
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EDA_DRAW_PANEL_GAL::GAL_TYPE aCanvasType ) :
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wxPanel( aParent, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0 ),
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m_kiway( aKiway ),
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m_preview( nullptr ),
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m_status( nullptr ),
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m_statusSizer( nullptr ),
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m_previewItem( nullptr )
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{
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wxString eeschemaFrameKey( SCH_EDIT_FRAME_NAME );
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wxConfigBase* eeschemaConfig = GetNewConfig( Pgm().App().GetAppName() );
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m_galDisplayOptions.ReadConfig( eeschemaConfig, eeschemaFrameKey + GAL_DISPLAY_OPTIONS_KEY );
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EDA_DRAW_PANEL_GAL::GAL_TYPE canvasType = aCanvasType;
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// Allows only a CAIRO or OPENGL canvas:
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if( canvasType != EDA_DRAW_PANEL_GAL::GAL_TYPE_OPENGL &&
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canvasType != EDA_DRAW_PANEL_GAL::GAL_TYPE_CAIRO )
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canvasType = EDA_DRAW_PANEL_GAL::GAL_TYPE_OPENGL;
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m_preview = new SCH_PREVIEW_PANEL( aParent, wxID_ANY, wxDefaultPosition, wxSize( -1, -1 ),
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m_galDisplayOptions, canvasType );
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m_preview->SetStealsFocus( false );
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SetBackgroundColour( *wxWHITE );
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SetForegroundColour( *wxBLACK );
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m_status = new wxStaticText( this, -1, wxEmptyString );
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m_statusSizer = new wxBoxSizer( wxVERTICAL );
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m_statusSizer->Add( 0, 0, 1 );
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m_statusSizer->Add( m_status, 0, wxALL | wxALIGN_CENTER, 0 );
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m_statusSizer->Add( 0, 0, 1 );
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auto outer_sizer = new wxBoxSizer( wxVERTICAL );
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outer_sizer->Add( m_preview, 1, wxALL | wxEXPAND, 0 );
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outer_sizer->Add( m_statusSizer, 1, wxALL | wxALIGN_CENTER, 0 );
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m_statusSizer->ShowItems( false );
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SetSizer( outer_sizer );
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Connect( wxEVT_SIZE, wxSizeEventHandler( SYMBOL_PREVIEW_WIDGET::onSize ), NULL, this );
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}
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SYMBOL_PREVIEW_WIDGET::~SYMBOL_PREVIEW_WIDGET()
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{
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if( m_previewItem )
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m_preview->GetView()->Remove( m_previewItem );
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delete m_previewItem;
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}
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void SYMBOL_PREVIEW_WIDGET::SetStatusText( wxString const& aText )
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{
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m_status->SetLabel( aText );
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m_statusSizer->ShowItems( true );
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m_preview->Hide();
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Layout();
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}
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void SYMBOL_PREVIEW_WIDGET::onSize( wxSizeEvent& aEvent )
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{
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aEvent.Skip();
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if( m_previewItem )
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{
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fitOnDrawArea();
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m_preview->ForceRefresh();
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}
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}
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void SYMBOL_PREVIEW_WIDGET::fitOnDrawArea()
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{
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if( !m_previewItem )
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return;
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// set the view scale to fit the item on screen
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// Calculate the draw scale to fit the drawing area
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KIGFX::VIEW* view = m_preview->GetView();
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// Calculate the drawing area size, in internal units, for a scaling factor = 1.0
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view->SetScale( 1.0 );
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VECTOR2D clientSize = view->ToWorld( m_preview->GetClientSize(), false );
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double scale = std::min( fabs( clientSize.x / m_itemBBox.GetWidth() ),
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fabs( clientSize.y / m_itemBBox.GetHeight() ) );
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// Above calculation will yield an exact fit; add a bit of whitespace around symbol
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scale /= 1.2;
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// Now fix the best scale
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view->SetScale( scale );
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view->SetCenter( m_itemBBox.Centre() );
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}
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void SYMBOL_PREVIEW_WIDGET::DisplaySymbol( const LIB_ID& aSymbolID, int aUnit )
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{
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KIGFX::VIEW* view = m_preview->GetView();
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auto settings = static_cast<KIGFX::SCH_RENDER_SETTINGS*>( view->GetPainter()->GetSettings() );
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LIB_ALIAS* alias = nullptr;
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try
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{
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alias = m_kiway.Prj().SchSymbolLibTable()->LoadSymbol( aSymbolID );
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}
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catch( const IO_ERROR& ioe )
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{
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wxLogError( wxString::Format( _( "Error loading symbol %s from library %s.\n\n%s" ),
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aSymbolID.GetLibItemName().wx_str(),
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aSymbolID.GetLibNickname().wx_str(),
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ioe.What() ) );
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}
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if( m_previewItem )
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{
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view->Remove( m_previewItem );
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delete m_previewItem;
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m_previewItem = nullptr;
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}
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if( alias )
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{
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LIB_PART* part = alias->GetPart();
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// If unit isn't specified for a multi-unit part, pick the first. (Otherwise we'll
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// draw all of them.)
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if( part->IsMulti() && aUnit == 0 )
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aUnit = 1;
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settings->m_ShowUnit = aUnit;
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// For symbols having a De Morgan body style, use the first style
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settings->m_ShowConvert = part->HasConversion() ? 1 : 0;
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m_previewItem = new LIB_ALIAS( *alias, part );
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view->Add( m_previewItem );
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// Get the symbole size, in internal units
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m_itemBBox = part->GetUnitBoundingBox( aUnit, 0 );
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// Calculate the draw scale to fit the drawing area
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fitOnDrawArea();
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}
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m_preview->ForceRefresh();
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m_preview->Show();
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m_statusSizer->ShowItems( false );
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}
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void SYMBOL_PREVIEW_WIDGET::DisplayPart( LIB_PART* aPart, int aUnit )
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{
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KIGFX::VIEW* view = m_preview->GetView();
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if( m_previewItem )
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{
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view->Remove( m_previewItem );
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delete m_previewItem;
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m_previewItem = nullptr;
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}
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if( aPart )
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{
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// If unit isn't specified for a multi-unit part, pick the first. (Otherwise we'll
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// draw all of them.)
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if( aPart->IsMulti() && aUnit == 0 )
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aUnit = 1;
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// For symbols having a De Morgan body style, use the first style
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auto settings = static_cast<KIGFX::SCH_RENDER_SETTINGS*>( view->GetPainter()->GetSettings() );
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settings->m_ShowConvert = aPart->HasConversion() ? 1 : 0;
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m_previewItem = new LIB_PART( *aPart );
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view->Add( m_previewItem );
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// Get the symbole size, in internal units
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m_itemBBox = aPart->GetUnitBoundingBox( aUnit, 0 );
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// Calculate the draw scale to fit the drawing area
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fitOnDrawArea();
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}
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m_preview->ForceRefresh();
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m_preview->Show();
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m_statusSizer->ShowItems( false );
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}
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