kicad/eeschema/schematic.h

168 lines
4.8 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020 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/>.
*/
#ifndef KICAD_SCHEMATIC_H
#define KICAD_SCHEMATIC_H
#include <base_struct.h>
#include <sch_sheet_path.h>
#include <schematic_settings.h>
class BUS_ALIAS;
class CONNECTION_GRAPH;
class EDA_BASE_FRAME;
class ERC_SETTINGS;
class PROJECT;
class SCH_SCREEN;
class SCH_SHEET;
/**
* Holds all the data relating to one schematic
* A schematic may consist of one or more sheets (and one root sheet)
* Right now, eeschema can have only one schematic open at a time, but this could change.
* Please keep this possibility in mind when adding to this object.
*/
class SCHEMATIC : public EDA_ITEM
{
friend class SCH_EDIT_FRAME;
private:
PROJECT* m_project;
/// The top-level sheet in this schematic hierarchy (or potentially the only one)
SCH_SHEET* m_rootSheet;
/**
* The sheet path of the sheet currently being edited or displayed.
* Note that this was moved here from SCH_EDIT_FRAME because currently many places in the code
* want to know the current sheet. Potentially this can be moved back to the UI code once
* the only places that want to know it are UI-related
*/
SCH_SHEET_PATH* m_currentSheet;
/// Holds and calculates connectivity information of this schematic
CONNECTION_GRAPH* m_connectionGraph;
public:
SCHEMATIC( PROJECT* aPrj );
~SCHEMATIC();
virtual wxString GetClass() const override
{
return wxT( "SCHEMATIC" );
}
/// Initializes this schematic to a blank one, unloading anything existing
void Reset();
/// Return a reference to the project this schematic is part of
PROJECT& Prj() const
{
return *const_cast<PROJECT*>( m_project );
}
void SetProject( PROJECT* aPrj );
/**
* Builds and returns an updated schematic hierarchy
* TODO: can this be cached?
* @return a SCH_SHEET_LIST containing the schematic hierarchy
*/
SCH_SHEET_LIST GetSheets() const
{
return SCH_SHEET_LIST( m_rootSheet );
}
SCH_SHEET& Root() const
{
return *m_rootSheet;
}
/**
* Initializes the schematic with a new root sheet.
* This is typically done by calling a file loader that returns the new root sheet
* As a side-effect, takes care of some post-load initialization.
* @param aRootSheet is the new root sheet for this schematic.
*/
void SetRoot( SCH_SHEET* aRootSheet );
/// A simple test if the schematic is loaded, not a complete one
bool IsValid() const
{
return m_rootSheet != nullptr;
}
/// Helper to retreive the screen of the root sheet
SCH_SCREEN* RootScreen() const;
/// Helper to retrieve the filename from the root sheet screen
wxString GetFileName() const;
SCH_SHEET_PATH& CurrentSheet() const
{
return *m_currentSheet;
}
void SetCurrentSheet( const SCH_SHEET_PATH& aPath )
{
*m_currentSheet = aPath;
}
CONNECTION_GRAPH* ConnectionGraph() const
{
return m_connectionGraph;
}
SCHEMATIC_SETTINGS& Settings() const;
ERC_SETTINGS& ErcSettings() const;
/**
* Returns a pointer to a bus alias object for the given label, or null if one
* doesn't exist.
*/
std::shared_ptr<BUS_ALIAS> GetBusAlias( const wxString& aLabel ) const;
/**
* Returns a list of name candidates for netclass assignment. The list will include both
* composite names (buses) and atomic net names. Names are fetched from available labels,
* power pins, etc.
*/
std::vector<wxString> GetNetClassAssignmentCandidates();
/**
* Resolves text vars that refer to other items.
* Note that the actual resolve is delegated to the symbol/sheet in question. This routine
* just does the look-up and delegation.
*/
bool ResolveCrossReference( wxString* token, int aDepth ) const;
wxString ConvertRefsToKIIDs( const wxString& aSource ) const;
wxString ConvertKIIDsToRefs( const wxString& aSource ) const;
#if defined(DEBUG)
void Show( int nestLevel, std::ostream& os ) const override {}
#endif
};
#endif