kicad/include/sch_item_struct.h

328 lines
11 KiB
C++

/*****************************************************************************/
/* sch_item_struct.h : Basic classes for most eeschema items descriptions */
/*****************************************************************************/
#ifndef SCH_ITEM_STRUCT_H
#define SCH_ITEM_STRUCT_H
#include <vector>
#include <class_base_screen.h>
using namespace std;
class SCH_ITEM;
class LINE_READER;
class SCH_EDIT_FRAME;
class wxFindReplaceData;
// Schematic item filter mask for hit test objects in schematic editor.
enum SCH_FILTER_T {
COMPONENT_T = 0x0001,
WIRE_T = 0X0002,
BUS_T = 0x0004,
BUS_ENTRY_T = 0x0008,
JUNCTION_T = 0x0010,
DRAW_ITEM_T = 0x0020,
TEXT_T = 0x0040,
LABEL_T = 0x0080,
SHEET_T = 0x0100,
MARKER_T = 0x0200,
NO_CONNECT_T = 0x0400,
SHEET_LABEL_T = 0x0800,
FIELD_T = 0x1000,
EXCLUDE_ENDPOINTS_T = 0x2000,
ENDPOINTS_ONLY_T = 0x4000,
PIN_T = 0x8000,
NO_FILTER_T = 0xFFFF
};
/* used to calculate the pen size from default value
* the actual pen size is default value * BUS_WIDTH_EXPAND
*/
#if defined(KICAD_GOST)
#define BUS_WIDTH_EXPAND 3.6
#else
#define BUS_WIDTH_EXPAND 1.4
#endif
enum DANGLING_END_T {
UNKNOWN = 0,
WIRE_START_END,
WIRE_END_END,
BUS_START_END,
BUS_END_END,
JUNCTION_END,
PIN_END,
LABEL_END,
ENTRY_END,
SHEET_LABEL_END
};
// A helper class to store a list of items that can be connected to something:
class DANGLING_END_ITEM
{
public:
const void* m_Item; // a pointer to the parent
wxPoint m_Pos; // the position of the connecting point
DANGLING_END_T m_Type; // type of parent
DANGLING_END_ITEM( DANGLING_END_T type, const void* aItem )
{
m_Item = aItem;
m_Type = type;
}
};
/**
* Class SCH_ITEM
* is a base class for any item which can be embedded within the SCHEMATIC
* container class, and therefore instances of derived classes should only be
* found in EESCHEMA or other programs that use class SCHEMATIC and its contents.
* The corresponding class in PCBNEW is BOARD_ITEM.
*/
class SCH_ITEM : public EDA_ITEM
{
protected:
int m_Layer;
EDA_ITEMS m_connections; ///< List of items connected to this item.
public:
SCH_ITEM( EDA_ITEM* aParent, KICAD_T aType );
SCH_ITEM( const SCH_ITEM& aItem );
~SCH_ITEM();
virtual wxString GetClass() const
{
return wxT( "SCH_ITEM" );
}
SCH_ITEM* Clone() const { return ( SCH_ITEM* ) EDA_ITEM::Clone(); }
SCH_ITEM* Next() { return (SCH_ITEM*) Pnext; }
SCH_ITEM* Back() { return (SCH_ITEM*) Pback; }
/**
* Function GetLayer
* returns the layer this item is on.
*/
int GetLayer() const { return m_Layer; }
/**
* Function SetLayer
* sets the layer this item is on.
* @param aLayer The layer number.
*/
void SetLayer( int aLayer ) { m_Layer = aLayer; }
/**
* Function GetPenSize virtual pure
* @return the size of the "pen" that be used to draw or plot this item
*/
virtual int GetPenSize() const { return 0; }
/**
* Function Draw
*/
virtual void Draw( WinEDA_DrawPanel* aPanel,
wxDC* aDC,
const wxPoint& aOffset,
int aDrawMode,
int aColor = -1 ) = 0;
/* Place function */
virtual void Place( SCH_EDIT_FRAME* aFrame, wxDC* aDC );
/**
* Function Move
* moves the item by \a aMoveVector to a new position.
* @param aMoveVector = the deplacement vector
*/
virtual void Move( const wxPoint& aMoveVector ) = 0;
/**
* Function Mirror_Y
* mirrors item relative to an Y axis about \a aYaxis_position.
* @param aYaxis_position The Y axis position to mirror around.
*/
virtual void Mirror_Y( int aYaxis_position ) = 0;
virtual void Mirror_X( int aXaxis_position ) = 0;
virtual void Rotate( wxPoint rotationPoint ) = 0;
/**
* Function Save
* writes the data structures for this object out to a FILE in "*.sch" format.
* @param aFile The FILE to write to.
* @return bool - true if success writing else false.
*/
virtual bool Save( FILE* aFile ) const = 0;
/**
* Function Load
* reads a schematic item from \a aLine in a .sch file.
*
* @param aLine - Essentially this is file to read the object from.
* @param aErrorMsg - Description of the error if an error occurs while loading the object.
* @return True if the object loaded successfully.
*/
virtual bool Load( LINE_READER& aLine, wxString& aErrorMsg ) { return false; }
/**
* Function Matches
* compares the schematic item against search \a aSearchData.
*
* The base class returns false since many of the objects derived from
* SCH_ITEM do not have any text to search.
*
* @todo - This should probably be pushed down to EDA_ITEM so that
* searches can be done on all of the Kicad applications that use
* objects derived from EDA_ITEM.
*
* @param aSearchData - The search criteria.
* @param aAuxData - a pointer on auxiliary data, if needed (NULL if not used).
* When searching string in REFERENCE field we must know the sheet path
* This param is used in such cases
* @param aFindLocation - a wxPoint where to put the location of matched item. can be NULL.
* @return True if this schematic text item matches the search criteria.
*/
virtual bool Matches( wxFindReplaceData& aSearchData, void* aAuxData, wxPoint* aFindLocation )
{ return false; }
/**
* Compare schematic item against search string.
*
* @param aText - String test.
* @param aSearchData - The criteria to search against.
* @return True if this item matches the search criteria.
*/
bool Matches( const wxString& aText, wxFindReplaceData& aSearchData );
/**
* Function GetEndPoints
* adds the schematic item end points to \a aItemList if the item has end points.
*
* The default version doesn't do anything since many of the schematic object cannot
* be tested for dangling ends. If you add a new schematic item that can have a
* dangling end ( no connect ), override this method to provide the correct end
* points.
*
* @param aItemList - List of DANGLING_END_ITEMS to add to.
*/
virtual void GetEndPoints( vector< DANGLING_END_ITEM >& aItemList ) {}
/**
* Function IsDanglingStateChanged
* tests the schematic item to \a aItemList to check if it's dangling state has changed.
*
* Note that the return value only true when the state of the test has changed. Use
* the IsDangling() method to get the current dangling state of the item. Some of
* the schematic objects cannot be tested for a dangling state, the default method
* always returns false. Only override the method if the item can be tested for a
* dangling state.
*
* @param aItemList - List of items to test item against.
* @return True if the dangling state has changed from it's current setting.
*/
virtual bool IsDanglingStateChanged( vector< DANGLING_END_ITEM >& aItemList ) { return false; }
virtual bool IsDangling() const { return false; }
/**
* Function IsSelectStateChanged
* checks if the selection state of an item inside \a aRect has changed.
*
* This is used by the block selection code to verify if an item is selected or not.
* True is be return anytime the select state changes. If you need to know the
* the current selection state, use the IsSelected() method.
*
* @param aRect - Rectange to test against.
*/
virtual bool IsSelectStateChanged( const wxRect& aRect ) { return false; }
/**
* Function GetConnectionPoints
* add all the connection points for this item to \a aPoints.
*
* Not all schematic items have connection points so the default method does nothing.
*
* @param aPoints List of connection points to add to.
*/
virtual void GetConnectionPoints( vector< wxPoint >& aPoints ) const { }
/**
* Function ClearConnections
* clears all of the connection items from the list.
*
* The vector release method is used to prevent the item pointers from being deleted.
* Do not use the vector erase method on the connection list.
*/
void ClearConnections() { m_connections.release(); }
/**
* Function IsConnected
* tests the item to see if it is connected to \a aPoint.
*
* @param aPoint - Position to test for connection.
* @return True if connection to \a aPoint exists.
*/
bool IsConnected( const wxPoint& aPoint ) const;
/**
* Function HitTest
* tests if \a aPoint is contained within or on the bounding box of an item.
*
* @param aPoint - Point to test.
* @param aAccuracy - Increase the item bounding box by this amount.
* @param aFilter - Mask to provide more granular hit testing. See enum SCH_FILTER_T.
* @return True if \a aPoint is within the item and meets the filter criteria.
*/
bool HitTest( const wxPoint& aPoint, int aAccuracy = 0,
SCH_FILTER_T aFilter = NO_FILTER_T ) const
{
return doHitTest( aPoint, aAccuracy, aFilter );
}
/**
* Function HitTest
* tests if \a aRect intersects or is contained within the bounding box of an item.
*
* @param aRect - Rectangle to test.
* @param aContained - Set to true to test for containment instead of an intersection.
* @param aAccuracy - Increase aRect by this amount.
* @return True if \a aRect contains or intersects the item bounding box.
*/
bool HitTest( const EDA_Rect& aRect, bool aContained = false, int aAccuracy = 0 ) const
{
return doHitTest( aRect, aContained, aAccuracy );
}
/**
* @note - The DoXXX() functions below are used to enforce the interface while retaining
* the ability of change the implementation behavior of derived classes. See
* Herb Sutters explanation of virtuality as to why you might want to do this at:
* http://www.gotw.ca/publications/mill18.htm.
*/
private:
virtual bool doHitTest( const wxPoint& aPoint, int aAccuracy, SCH_FILTER_T aFilter ) const
{
return false;
}
virtual bool doHitTest( const EDA_Rect& aRect, bool aContained, int aAccuracy ) const
{
return false;
}
virtual bool doIsConnected( const wxPoint& aPosition ) const { return false; }
};
#endif /* SCH_ITEM_STRUCT_H */