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kicad/eeschema/sch_screen.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2019 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
*/
/**
* @file sch_screen.h
* @brief Definitions for the Eeschema program SCH_SCREEN class.
*/
#ifndef SCREEN_H
#define SCREEN_H
#include <unordered_set>
#include <macros.h>
#include <dlist.h>
#include <sch_item_struct.h>
#include <lib_draw_item.h>
#include <base_screen.h>
#include <title_block.h>
#include <page_info.h>
#include <kiway_player.h>
#include <sch_marker.h>
#include <bus_alias.h>
class LIB_PIN;
class SCH_COMPONENT;
class SCH_SHEET_LIST;
class SCH_SHEET_PATH;
class SCH_SHEET_PIN;
class SCH_LINE;
class SCH_TEXT;
class PLOTTER;
class SCH_SHEET_LIST;
enum SCH_LINE_TEST_T
{
ENTIRE_LENGTH_T,
END_POINTS_ONLY_T,
EXCLUDE_END_POINTS_T
};
/// Max number of sheets in a hierarchy project
#define NB_MAX_SHEET 500
class SCH_SCREEN : public BASE_SCREEN, public KIWAY_HOLDER
{
private:
wxString m_fileName; ///< File used to load the screen.
int m_refCount; ///< Number of sheets referencing this screen.
///< Delete when it goes to zero.
/** the list of scheet paths sharing this screen
* used in some annotation calculations to update alternate references
* Note: a screen having a m_refCount = 1 (only one sheet path using it)
* can have many scheet paths sharing this screen, if this sheet is inside
* an other sheet having many instances (one sheet path by parent sheet instance).
*/
wxArrayString m_clientSheetPathList;
/// The size of the paper to print or plot on
PAGE_INFO m_paper; // keep with the MVC 'model' if this class gets split
TITLE_BLOCK m_titles;
/// Origin of the auxiliary axis, which is used in exports mostly, but not yet in EESCHEMA
wxPoint m_aux_origin;
DLIST< SCH_ITEM > m_drawList; ///< Object list for the screen.
int m_modification_sync; ///< inequality with PART_LIBS::GetModificationHash()
///< will trigger ResolveAll().
/// List of bus aliases stored in this screen
std::unordered_set< std::shared_ptr< BUS_ALIAS > > m_aliases;
public:
/**
* Constructor
*/
SCH_SCREEN( KIWAY* aKiway );
~SCH_SCREEN();
DLIST< SCH_ITEM > & GetDrawList() { return m_drawList; }
virtual wxString GetClass() const override
{
return wxT( "SCH_SCREEN" );
}
const PAGE_INFO& GetPageSettings() const { return m_paper; }
void SetPageSettings( const PAGE_INFO& aPageSettings ) { m_paper = aPageSettings; }
void SetFileName( const wxString& aFileName ) { m_fileName = aFileName; }
const wxString& GetFileName() const { return m_fileName; }
const wxPoint& GetAuxOrigin() const { return m_aux_origin; }
void SetAuxOrigin( const wxPoint& aPosition ) { m_aux_origin = aPosition; }
const TITLE_BLOCK& GetTitleBlock() const { return m_titles; }
//TITLE_BLOCK& GetTitleBlock() const { return (TITLE_BLOCK&) m_titles; }
void SetTitleBlock( const TITLE_BLOCK& aTitleBlock ) { m_titles = aTitleBlock; }
void DecRefCount();
void IncRefCount();
int GetRefCount() const { return m_refCount; }
/**
* @return the sheet paths count sharing this screen
* if 1 this screen is not in a complex hierarchy: the reference field can be
* used to store the component reference
* if > 1 this screen is in a complex hierarchy, and components must have
* a full alternate reference management
*/
int GetClientSheetPathsCount() { return (int) m_clientSheetPathList.GetCount(); }
wxArrayString& GetClientSheetPaths() { return m_clientSheetPathList; }
/**
* @return A pointer to the first item in the linked list of draw items.
*/
SCH_ITEM* GetDrawItems() const { return m_drawList.begin(); }
void Append( SCH_ITEM* aItem )
{
m_drawList.Append( aItem );
--m_modification_sync;
}
/**
* Copy the contents of \a aScreen into this #SCH_SCREEN object.
*
* @warning The contents of \a Screen cannot contain any duplicate sheet names or any
* hierarchy recursion issues or bad things will happen.
*
* @param aScreen is the screen to append to this one.
* @return false if there are any duplicate sheet names or any hierarchy recursion issues the
* calling this method or KiCad will crash.
*/
void Append( SCH_SCREEN* aScreen );
/**
* Add \a aList of SCH_ITEM objects to the list for draw items for the sheet.
*
* @param aList A reference to a #DLIST containing the #SCH_ITEM to add to the sheet.
*/
void Append( DLIST< SCH_ITEM >& aList )
{
m_drawList.Append( aList );
--m_modification_sync;
}
/**
* Return the currently selected SCH_ITEM, overriding BASE_SCREEN::GetCurItem().
*
* @return SCH_ITEM* - the one selected, or NULL.
*/
// JEY TODO: these should go away: if the selection contains one item then it's the curItem...
SCH_ITEM* GetCurItem() const { return (SCH_ITEM*) BASE_SCREEN::GetCurItem(); }
LIB_ITEM* GetCurLibItem() const { return (LIB_ITEM*) BASE_SCREEN::GetCurItem(); }
/**
* Sets the currently selected object, m_CurrentItem.
*
* @param aItem Any object derived from SCH_ITEM
*/
void SetCurItem( SCH_ITEM* aItem ) { BASE_SCREEN::SetCurItem( (EDA_ITEM*) aItem ); }
void SetCurLibItem( LIB_ITEM* aItem ) { BASE_SCREEN::SetCurItem( (EDA_ITEM*) aItem ); }
/**
* Delete all draw items and clears the project settings.
*/
void Clear();
/**
* Free all the items from the schematic associated with the screen.
*
* This does not delete any sub hierarchies.
*/
void FreeDrawList();
/**
* Check \a aPosition within a distance of \a aAccuracy for items of type \a aFilter.
*
* @param aPosition Position in drawing units.
* @param aAccuracy The maximum distance within \a Position to check for an item.
* @param aType The type of item to find.
* @return The item found that meets the search criteria or NULL if none found.
*/
SCH_ITEM* GetItem( const wxPoint& aPosition, int aAccuracy = 0,
KICAD_T aType = SCH_LOCATE_ANY_T ) const;
void Place( SCH_EDIT_FRAME* frame, wxDC* DC ) { };
/**
* Initialize or reinitialize the weak reference to the #LIB_PART for each #SCH_COMPONENT
* found in m_drawList.
*
* It must be called from:
* - Draw function
* - when loading a schematic file
* - before creating a netlist (in case a library is modified)
* - whenever a symbol library is modified
* - whenever the symbol library table is modified.
*
* @param aForce true forces a refresh even if the library modification has hasn't changed.
*/
void UpdateSymbolLinks( bool aForce = false );
/**
* Draw all the items in the screen to \a aCanvas.
*
* @note This function is useful only for schematic. The library editor and library viewer
* do not use a draw list and therefore draws nothing.
*
* @param aCanvas The canvas item to draw on.
* @param aDC The device context to draw on.
*/
void Draw( EDA_DRAW_PANEL* aCanvas, wxDC* aDC );
/**
* Plot all the schematic objects to \a aPlotter.
*
* @note This function is useful only for schematic. The library editor and library viewer
* do not use a draw list and therefore plots nothing.
*
* @param aPlotter The plotter object to plot to.
*/
void Plot( PLOTTER* aPlotter );
/**
* Remove \a aItem from the schematic associated with this screen.
*
* @note The removed item is not deleted. It is only unlinked from the item list.
* @param aItem Item to be removed from schematic.
*/
void Remove( SCH_ITEM* aItem );
/**
* Removes \a aItem from the linked list and deletes the object.
*
* If \a aItem is a schematic sheet label, it is removed from the screen associated with
* the sheet that contains the label to be deleted.
*
* @param aItem The schematic object to be deleted from the screen.
*/
void DeleteItem( SCH_ITEM* aItem );
bool CheckIfOnDrawList( SCH_ITEM* st );
/**
* Test all of the connectable objects in the schematic for unused connection points.
* @return True if any connection state changes were made.
*/
bool TestDanglingEnds();
/**
* Replace all of the wires, buses, and junctions in the screen with \a aWireList.
*
* @param aWireList List of wires to replace the existing wires with.
*/
void ReplaceWires( DLIST< SCH_ITEM >& aWireList );
/**
* Add all wires and junctions connected to \a aSegment which are not connected any
* component pin to \a aItemList.
*
* @param aSegment The segment to test for connections.
*/
void MarkConnections( SCH_LINE* aSegment );
/* full undo redo management : */
// use BASE_SCREEN::PushCommandToUndoList( PICKED_ITEMS_LIST* aItem )
// use BASE_SCREEN::PushCommandToRedoList( PICKED_ITEMS_LIST* aItem )
/**
* Free the undo or redo list from \a aList element.
*
* - Wrappers are deleted.
* - data pointed by wrappers are deleted if not in use in schematic
* i.e. when they are copy of a schematic item or they are no more in use (DELETED)
*
* @param aList = the UNDO_REDO_CONTAINER to clear
* @param aItemCount = the count of items to remove. < 0 for all items
* items are removed from the beginning of the list.
* So this function can be called to remove old commands
*/
virtual void ClearUndoORRedoList( UNDO_REDO_CONTAINER& aList, int aItemCount = -1 ) override;
/**
* Clear the state flags of all the items in the screen.
*/
void ClearDrawingState();
int CountConnectedItems( const wxPoint& aPos, bool aTestJunctions ) const;
/**
* Test if a junction is required for the items at \a aPosition on the screen.
* <p>
* A junction is required at \a aPosition if one of the following criteria is satisfied:
* <ul>
* <li>one wire midpoint and one or more wire endpoints;</li>
* <li>three or more wire endpoints;</li>
* <li>one wire midpoint and a component pin;</li>
* <li>two or more wire endpoints and a component pin.</li>
* </ul>
* </p>
* @param aPosition The position to test.
* @param aNew Checks if a _new_ junction is needed, i.e. there isn't one already
* @return True if a junction is required at \a aPosition.
*/
bool IsJunctionNeeded( const wxPoint& aPosition, bool aNew = false );
/**
* Test if \a aPosition is a connection point on \a aLayer.
*
* @param aPosition Position to test.
* @param aLayer The layer type to test against. Valid layer types are #LAYER_NOTES,
* #LAYER_BUS, and #LAYER_WIRE.
* @return True if \a Position is a connection point on \a aLayer.
*/
bool IsTerminalPoint( const wxPoint& aPosition, int aLayer );
/**
* Test the screen for a component pin item at \a aPosition.
*
* @param aPosition Position to test.
* @param aComponent The component if a pin was found, otherwise NULL.
* @param aEndPointOnly Set to true to test if \a aPosition is the connection
* point of the pin.
* @return The pin item if found, otherwise NULL.
*/
LIB_PIN* GetPin( const wxPoint& aPosition, SCH_COMPONENT** aComponent = NULL,
bool aEndPointOnly = false ) const;
/**
* Returns a sheet object pointer that is named \a aName.
*
* @note The screen hierarchy is not descend.
* @param aName is the case insensitive name of the sheet.
* @return A pointer to the SCH_SHEET object found or NULL.
*/
SCH_SHEET* GetSheet( const wxString& aName );
/**
* Test the screen if \a aPosition is a sheet label object.
*
* @param aPosition The position to test.
* @return The sheet label object if found otherwise NULL.
*/
SCH_SHEET_PIN* GetSheetLabel( const wxPoint& aPosition );
/**
* Clear the annotation for the components in \a aSheetPath on the screen.
*
* @param aSheetPath The sheet path of the component annotation to clear. If NULL then
* the entire hierarchy is cleared.
*/
void ClearAnnotation( SCH_SHEET_PATH* aSheetPath );
/**
* For screens shared by many sheetpaths (complex hierarchies):
* to be able to clear or modify any reference related sharing this screen
* (i.e. thie list of components), an entry for each screen path must exist.
* This function creates missing entries, using as default reference the current
* reference field and unit number
* Note: m_clientSheetPathList must be up to date
* ( built by SCH_SCREENS::BuildClientSheetPathList() )
*/
void EnsureAlternateReferencesExist();
/**
* Add all schematic sheet and component objects in the screen to \a aItems.
*
* @param aItems Hierarchical item list to fill.
*/
void GetHierarchicalItems( EDA_ITEMS& aItems );
/**
* Return a wire or bus item located at \a aPosition.
*
* @param aPosition The wxPoint to test for node items.
* @return The SCH_LINE* of the wire or bus item found at \a aPosition or NULL if item not
* found.
*/
SCH_LINE* GetWireOrBus( const wxPoint& aPosition );
/**
* Return a line item located at \a aPosition.
*
* @param aPosition The wxPoint to test for a line item.
* @param aAccuracy Amount to inflate the item hit test bounding box.
* @param aLayer The layer the line is drawn upon.
* @param aSearchType Additional line test criteria.
* @return The SCH_LINE* of the wire item found at \a aPosition or NULL if item not
* found.
*/
SCH_LINE* GetLine( const wxPoint& aPosition, int aAccuracy = 0, int aLayer = LAYER_NOTES,
SCH_LINE_TEST_T aSearchType = ENTIRE_LENGTH_T );
SCH_LINE* GetWire( const wxPoint& aPosition, int aAccuracy = 0,
SCH_LINE_TEST_T aSearchType = ENTIRE_LENGTH_T )
{
return GetLine( aPosition, aAccuracy, LAYER_WIRE, aSearchType );
}
SCH_LINE* GetBus( const wxPoint& aPosition, int aAccuracy = 0,
SCH_LINE_TEST_T aSearchType = ENTIRE_LENGTH_T )
{
return GetLine( aPosition, aAccuracy, LAYER_BUS, aSearchType );
}
/**
* Return a label item located at \a aPosition.
*
* @param aPosition The wxPoint to test for label items.
* @param aAccuracy Amount to inflate the item hit test bounding box.
* @return The SCH_TEXT* of the label item found at \a aPosition or NULL if item not
* found.
*/
SCH_TEXT* GetLabel( const wxPoint& aPosition, int aAccuracy = 0 );
/**
* Search this screen for a symbol with \a aReference and set the footprint field to
* \a aFootPrint if found.
*
* @param aSheetPath The sheet path used to look up the reference designator.
* @param aReference The reference designator of the component.
* @param aFootPrint The value to set the footprint field.
* @param aSetVisible The value to set the field visibility flag.
* @return True if \a aReference was found otherwise false.
*/
bool SetComponentFootprint( SCH_SHEET_PATH* aSheetPath, const wxString& aReference,
const wxString& aFootPrint, bool aSetVisible );
/**
* Adds a bus alias definition (and transfers ownership of the pointer)
*/
void AddBusAlias( std::shared_ptr<BUS_ALIAS> aAlias );
/**
* Removes all bus alias definitions
*/
void ClearBusAliases()
{
m_aliases.clear();
}
/**
* Returns a list of bus aliases defined in this screen
*/
std::unordered_set< std::shared_ptr<BUS_ALIAS> > GetBusAliases()
{
return m_aliases;
}
/**
* Returns true if the given string is a valid bus alias in a loaded screen
*/
static bool IsBusAlias( const wxString& aLabel );
/**
* Returns a pointer to a bus alias object for the given label,
* or null if one doesn't exist
*/
static std::shared_ptr<BUS_ALIAS> GetBusAlias( const wxString& aLabel );
#if defined(DEBUG)
void Show( int nestLevel, std::ostream& os ) const override;
#endif
};
/**
* Container class that holds multiple #SCH_SCREEN objects in a hierarchy.
*
* Individual #SCH_SCREEN objects are unique and correspond to .sch files.
*/
class SCH_SCREENS
{
private:
std::vector< SCH_SCREEN* > m_screens;
unsigned int m_index;
public:
SCH_SCREENS( SCH_SHEET* aSheet = NULL );
~SCH_SCREENS();
int GetCount() const { return m_screens.size(); }
SCH_SCREEN* GetFirst();
SCH_SCREEN* GetNext();
SCH_SCREEN* GetScreen( unsigned int aIndex ) const;
/**
* Clear the annotation for all components in the hierarchy.
*/
void ClearAnnotation();
/**
* Clear the annotation for the components inside new sheetpaths
* when a complex hierarchy is modified and new sheetpaths added
* when a screen shares more than one sheet path, missing alternate references are added
* and alternate references of new sheet paths are cleared
*
* @param aInitialSheetPathList is the initial sheet paths list of hierarchy before changes.
*/
void ClearAnnotationOfNewSheetPaths( SCH_SHEET_LIST& aInitialSheetPathList );
/**
* Test all sheet and component objects in the schematic for duplicate time stamps
* and replaces them as necessary.
* Time stamps must be unique in order for complex hierarchies know which components go
* to which sheets.
* @return The number of duplicate time stamps replaced.
*/
int ReplaceDuplicateTimeStamps();
/**
* Delete all electronic rules check markers of \a aMarkerType from all the screens in
* the list.
* @param aMarkerType Type of markers to be deleted.
*/
void DeleteAllMarkers( enum MARKER_BASE::TYPEMARKER aMarkerType );
/**
* Return the number of ERC markers of \a aMarkerType from all of the screens in the list.
*
* @param aMarkerType Indicates the type of marker to count. if MARKER_UNSPEC
* all markers are counted.
* @param aSeverity Indicates the error level of marker to count.
* useMARKER_SEVERITY_UNSPEC to count all markersof the specified type
* @return int count of the markers found.
*/
int GetMarkerCount( enum MARKER_BASE::TYPEMARKER aMarkerType,
enum MARKER_BASE::MARKER_SEVERITY aSeverity );
/**
* Initialize or reinitialize the weak reference to the #LIB_PART for each #SCH_COMPONENT
* found in the full schematic.
*
* It must be called from:
* - draw functions
* - when loading a schematic file
* - before creating a netlist (in case a library is modified)
* - whenever any of the libraries are modified.
* - whenever the symbol library table is modified.
*/
void UpdateSymbolLinks( bool aForce = false );
void TestDanglingEnds();
/**
* Test all of the schematic symbols to see if all #LIB_ID objects library nickname is not
* set.
*
* If none of the #LIB_ID object library nicknames are not set, this indicates that the
* project was created before the symbol library implementation.
*
* @return true in there are any symbols and if all of the #LIB_ID object library nicknames
* are empty, otherwise false.
*/
bool HasNoFullyDefinedLibIds();
/**
* Fetch all of the symbol library nickames into \a aLibNicknames.
*
* @param aLibNicknames is the array to populate with all of the unique library nicknames.
* @return the number of symbol library nicknames found.
*/
size_t GetLibNicknames( wxArrayString& aLibNicknames );
/**
* Change all of the symbol library nicknames.
*
* @param aFrom the current symbol library name to change.
* @param aTo the new symbol library name.
* @return the number of symbol library nicknames that were changed.
*/
int ChangeSymbolLibNickname( const wxString& aFrom, const wxString& aTo );
/**
* built the list of sheet paths sharing a screen for each screen in use
*/
void BuildClientSheetPathList();
private:
void addScreenToList( SCH_SCREEN* aScreen );
void buildScreenList( SCH_SHEET* aSheet);
};
#endif /* SCREEN_H */
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