kicad/eeschema/sch_item.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2006 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2021 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 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
*/
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#include <pgm_base.h>
#include <settings/settings_manager.h>
#include <eeschema_settings.h>
#include <eda_item.h>
#include <sch_connection.h>
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#include <sch_item.h>
#include <sch_screen.h>
#include <sch_sheet_path.h>
#include <sch_draw_panel.h>
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#include <sch_edit_frame.h>
#include <schematic.h>
#include <trace_helpers.h>
#include <general.h>
#include <netclass.h>
#include <project/project_file.h>
#include <project/net_settings.h>
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// Rendering fonts is expensive (particularly when using outline fonts). At small effective
// sizes (ie: zoomed out) the visual differences between outline and/or stroke fonts and the
// bitmap font becomes immaterial, and there's often more to draw when zoomed out so the
// performance gain becomes more significant.
#define BITMAP_FONT_SIZE_THRESHOLD 3
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/* Constructor and destructor for SCH_ITEM */
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/* They are not inline because this creates problems with gcc at linking time in debug mode */
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SCH_ITEM::SCH_ITEM( EDA_ITEM* aParent, KICAD_T aType ) :
EDA_ITEM( aParent, aType )
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{
m_layer = LAYER_WIRE; // It's only a default, in fact
m_fieldsAutoplaced = FIELDS_AUTOPLACED_NO;
m_connectivity_dirty = false; // Item is unconnected until it is placed, so it's clean
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}
SCH_ITEM::SCH_ITEM( const SCH_ITEM& aItem ) :
EDA_ITEM( aItem )
{
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m_layer = aItem.m_layer;
m_fieldsAutoplaced = aItem.m_fieldsAutoplaced;
m_connectivity_dirty = aItem.m_connectivity_dirty;
}
SCH_ITEM& SCH_ITEM::operator=( const SCH_ITEM& aItem )
{
m_layer = aItem.m_layer;
m_fieldsAutoplaced = aItem.m_fieldsAutoplaced;
m_connectivity_dirty = aItem.m_connectivity_dirty;
return *this;
}
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SCH_ITEM::~SCH_ITEM()
{
// Do not let the connections container go out of scope with any objects or they
// will be deleted by the container will cause the Eeschema to crash. These objects
// are owned by the sheet object container.
if( !m_connections.empty() )
m_connections.clear();
for( const auto& it : m_connection_map )
delete it.second;
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}
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SCH_ITEM* SCH_ITEM::Duplicate( bool doClone ) const
{
SCH_ITEM* newItem = (SCH_ITEM*) Clone();
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if( !doClone )
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const_cast<KIID&>( newItem->m_Uuid ) = KIID();
newItem->ClearFlags( SELECTED | BRIGHTENED );
newItem->RunOnChildren(
[]( SCH_ITEM* aChild )
{
aChild->ClearFlags( SELECTED | BRIGHTENED );
} );
return newItem;
}
SCHEMATIC* SCH_ITEM::Schematic() const
{
EDA_ITEM* parent = GetParent();
while( parent )
{
if( parent->Type() == SCHEMATIC_T )
return static_cast<SCHEMATIC*>( parent );
else
parent = parent->GetParent();
}
return nullptr;
}
void SCH_ITEM::ViewGetLayers( int aLayers[], int& aCount ) const
{
// Basic fallback
aCount = 2;
aLayers[0] = LAYER_DEVICE;
aLayers[1] = LAYER_SELECTION_SHADOWS;
}
bool SCH_ITEM::IsConnected( const VECTOR2I& aPosition ) const
{
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if(( m_flags & STRUCT_DELETED ) || ( m_flags & SKIP_STRUCT ) )
return false;
return doIsConnected( aPosition );
}
SCH_CONNECTION* SCH_ITEM::Connection( const SCH_SHEET_PATH* aSheet ) const
{
if( !IsConnectable() )
return nullptr;
if( IsConnectivityDirty() )
{
wxFAIL_MSG( wxT( "Shouldn't be asking for connection if connectivity is dirty!" ) );
return nullptr;
}
if( !aSheet )
aSheet = &Schematic()->CurrentSheet();
auto it = m_connection_map.find( *aSheet );
if( it == m_connection_map.end() )
return nullptr;
else
return it->second;
}
void SCH_ITEM::SetConnectionGraph( CONNECTION_GRAPH* aGraph )
{
for( auto& [path, conn] : m_connection_map )
conn->SetGraph( aGraph );
}
std::shared_ptr<NETCLASS> SCH_ITEM::GetEffectiveNetClass( const SCH_SHEET_PATH* aSheet ) const
{
static std::shared_ptr<NETCLASS> nullNetclass = std::make_shared<NETCLASS>( wxEmptyString );
SCHEMATIC* schematic = Schematic();
if( schematic )
{
std::shared_ptr<NET_SETTINGS>& netSettings = schematic->Prj().GetProjectFile().m_NetSettings;
SCH_CONNECTION* connection = Connection( aSheet );
if( connection )
return netSettings->GetEffectiveNetClass( connection->Name() );
else
return netSettings->m_DefaultNetClass;
}
return nullNetclass;
}
SCH_ITEM_SET& SCH_ITEM::ConnectedItems( const SCH_SHEET_PATH& aSheet )
{
return m_connected_items[ aSheet ];
}
void SCH_ITEM::AddConnectionTo( const SCH_SHEET_PATH& aSheet, SCH_ITEM* aItem )
{
SCH_ITEM_SET& set = m_connected_items[ aSheet ];
// The vector elements are small, so reserve 1k at a time to prevent re-allocations
if( set.size() == set.capacity() )
set.reserve( set.size() + 4096 );
set.emplace_back( aItem );
}
SCH_CONNECTION* SCH_ITEM::InitializeConnection( const SCH_SHEET_PATH& aSheet,
CONNECTION_GRAPH* aGraph )
{
SetConnectivityDirty( false );
SCH_CONNECTION* connection = Connection( &aSheet );
if( connection )
{
connection->Reset();
}
else
{
connection = new SCH_CONNECTION( this );
m_connection_map.insert( std::make_pair( aSheet, connection ) );
}
connection->SetGraph( aGraph );
connection->SetSheet( aSheet );
return connection;
}
SCH_CONNECTION* SCH_ITEM::GetOrInitConnection( const SCH_SHEET_PATH& aSheet,
CONNECTION_GRAPH* aGraph )
{
if( !IsConnectable() )
return nullptr;
SetConnectivityDirty( false );
SCH_CONNECTION* connection = Connection( &aSheet );
if( connection )
return connection;
else
return InitializeConnection( aSheet, aGraph );
}
void SCH_ITEM::SwapData( SCH_ITEM* aItem )
{
UNIMPLEMENTED_FOR( GetClass() );
}
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void SCH_ITEM::ClearCaches()
{
auto clearTextCaches =
[]( SCH_ITEM* aItem )
{
EDA_TEXT* text = dynamic_cast<EDA_TEXT*>( aItem );
if( text )
{
text->ClearBoundingBoxCache();
text->ClearRenderCache();
}
};
clearTextCaches( this );
RunOnChildren( clearTextCaches );
}
bool SCH_ITEM::operator < ( const SCH_ITEM& aItem ) const
{
if( Type() != aItem.Type() )
return Type() < aItem.Type();
if( GetPosition().x != aItem.GetPosition().x )
return GetPosition().x < aItem.GetPosition().x;
if( GetPosition().y != aItem.GetPosition().y )
return GetPosition().y < aItem.GetPosition().y;
return m_Uuid < aItem.m_Uuid;
}
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const wxString& SCH_ITEM::GetDefaultFont() const
{
EESCHEMA_SETTINGS* cfg = Pgm().GetSettingsManager().GetAppSettings<EESCHEMA_SETTINGS>();
return cfg->m_Appearance.default_font;
}
bool SCH_ITEM::RenderAsBitmap( double aWorldScale ) const
{
if( IsHypertext() )
return false;
if( const EDA_TEXT* text = dynamic_cast<const EDA_TEXT*>( this ) )
return text->GetTextHeight() * aWorldScale < BITMAP_FONT_SIZE_THRESHOLD;
return false;
}
void SCH_ITEM::Plot( PLOTTER* aPlotter, bool aBackground ) const
{
wxFAIL_MSG( wxT( "Plot() method not implemented for class " ) + GetClass() );
}