kicad/eeschema/lib_draw_item.h

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/****************************************************************/
/* Headers for library definition and lib component definitions */
/****************************************************************/
/* Definitions of graphic items used to create shapes in component libraries.
*/
#ifndef _LIB_DRAW_ITEM_H_
#define _LIB_DRAW_ITEM_H_
#include "base_struct.h"
#include "transform.h"
#include <boost/ptr_container/ptr_vector.hpp>
class LIB_COMPONENT;
class PLOTTER;
class LIB_DRAW_ITEM;
class LIB_PIN;
extern const int fill_tab[];
// Set KICAD_USE_LIB_OJBECT_EDIT to 1 to use build in ojbect editing mode.
#if !defined( KICAD_USE_LIB_OJBECT_EDIT )
#undef KICAD_USE_LIB_OJBECT_EDIT
#define KICAD_USE_LIB_OJBECT_EDIT 1
#endif
#define MINIMUM_SELECTION_DISTANCE 15 // Minimum selection distance in mils
/**
* Helper for defining a list of library draw object pointers. The Boost
* pointer containers are responsible for deleting object pointers placed
* in them. If you access a object pointer from the list, do not delete
* it directly.
*/
typedef boost::ptr_vector< LIB_DRAW_ITEM > LIB_DRAW_ITEM_LIST;
/**
* Helper for defining a list of pin object pointers. The list does not
* use a Boost pointer class so the ojbect pointers do not accidently get
* deleted when the container is deleted.
*/
typedef std::vector< LIB_PIN* > LIB_PIN_LIST;
/****************************************************************************/
/* Classes for handle the body items of a component: pins add graphic items */
/****************************************************************************/
/**
* Base class for drawable items used in library components.
* (graphic shapes, texts, fields, pins)
*/
class LIB_DRAW_ITEM : public EDA_BaseStruct
{
/**
* Draws the item.
*/
virtual void drawGraphic( WinEDA_DrawPanel* aPanel, wxDC* aDC,
const wxPoint& aOffset, int aColor,
int aDrawMode, void* aData, const TRANSFORM& aTransform ) = 0;
/**
* Draw any editing specific graphics when the item is being edited.
*
* @param aClipBox - Clip box of the current device context.
* @param aDC - The device context to draw on.
* @param aColor - The index of the color to draw.
*/
virtual void drawEditGraphics( EDA_Rect* aClipBox, wxDC* aDC, int aColor ) {}
/**
* Calculates the attributes of an item at \a aPosition when it is being edited.
*
* This method gets called by the Draw() method when the item is being edited. This
* probably should be a pure virtual method but bezier curves are not yet editable in
* the component library editor. Therefore, the default method does nothing.
*
* @param aPosition - The current mouse position in drawing coordinates.
*/
virtual void calcEdit( const wxPoint& aPosition ) {}
/**
* Save the current item attributes while editing.
*
* This method is used to save the drawing attributes of the item during editing.
* These values are restored when an edit is canceled by calling EndEdit().
*/
virtual void saveAttributes() {}
/**
* Restore the saved attributes when an existing item edit is cancelled.
*/
virtual void restoreAttributes() {}
bool m_eraseLastDrawItem; ///< Used when editing a new draw item to prevent drawing
///< artifacts.
protected:
wxPoint m_savedPos; ///< Temporary position when editng an existing item.
wxPoint m_initialPos; ///< Temporary position when moving an existing item.
wxPoint m_initialCursorPos; ///< Iniital cursor position at the begining of a move.
public:
/**
* Unit identification for multiple parts per package. Set to 0 if the
* item is common to all units.
*/
int m_Unit;
/**
* Shape identification for alternate body styles. Set 0 if the item
* is common to all body styles. This is commonly referred to as
* DeMorgan style and this is typically how it is used in Kicad.
*/
int m_Convert;
/**
* The body fill type. This has meaning only for some items. For a list of
* fill types see #FILL_T.
*/
FILL_T m_Fill;
wxString m_typeName; ///< Name of object displayed in the message panel.
public:
LIB_DRAW_ITEM( KICAD_T aType,
LIB_COMPONENT* aComponent = NULL,
int aUnit = 0,
int aConvert = 0,
FILL_T aFillType = NO_FILL );
LIB_DRAW_ITEM( const LIB_DRAW_ITEM& aItem );
virtual ~LIB_DRAW_ITEM() { }
/**
* Begin an editing a component library draw item in \a aEditMode at \a aPosition.
*
* This is used to start an editing action such as resize or move a draw object.
* It typically would be called on a left click when a draw tool is selected in
* the component library editor and one of the graphics tools is selected. It
* allows the draw item to maintian it's own internal state while it is being
* edited. Call AbortEdit() to quit the editing mode.
*
* @param aEditMode - The editing mode being performed. See base_struct.h for a list
* of mode flags.
* @param aPosition - The position in drawing coordinates where the editing mode was
* started. This may or may not be required depending on the item
* being edited and the edit mode.
*/
virtual void BeginEdit( int aEditMode, const wxPoint aPosition = wxPoint( 0, 0 ) ) {}
/**
* Continue an edit in progress at \a aPosition.
*
* This is used to perform the next action while editing a draw item. This would be
* called for each additional left click when the mouse is captured while the item
* is being edited.
*
* @param aPosition - The position of the mouse left click in drawing coordinates.
* @return True if additional mouse clicks are required to complete the edit in progress.
*/
virtual bool ContinueEdit( const wxPoint aPosition ) { return false; }
/**
* End an object editing action.
*
* This is used to end or abort an edit action in progress initiated by BeginEdit().
*
* @param aPosition - The position of the last edit event in drawing coordinates.
* @param aAbort - Set to true to abort the current edit in progress.
*/
virtual void EndEdit( const wxPoint& aPosition, bool aAbort = false ) { m_Flags = 0; }
/**
* Draw an item
*
* @param aPanel - DrawPanel to use (can be null) mainly used for clipping
* purposes
* @param aDC - Device Context (can be null)
* @param aOffset - offset to draw
* @param aColor - -1 to use the normal body item color, or use this color
* if >= 0
* @param aDrawMode - GR_OR, GR_XOR, ...
* @param aData - value or pointer used to pass others parameters,
* depending on body items. used for some items to force
* to force no fill mode ( has meaning only for items what
* can be filled ). used in printing or moving objects mode
* or to pass reference to the lib component for pins
* @param aTransform - Transform Matrix (rotation, mirror ..)
*/
virtual void Draw( WinEDA_DrawPanel* aPanel, wxDC* aDC, const wxPoint &aOffset, int aColor,
int aDrawMode, void* aData, const TRANSFORM& aTransform );
/**
* @return the size of the "pen" that be used to draw or plot this item
*/
virtual int GetPenSize() = 0;
/**
* Write draw item object to \a aFile in "*.lib" format.
*
* @param aFile - The file to write to.
* @param aErrorMsg - Error message if write fails.
* @return - true if success writing else false.
*/
virtual bool Save( FILE* aFile ) = 0;
virtual bool Load( char* aLine, wxString& aErrorMsg ) = 0;
LIB_COMPONENT* GetParent()
{
return (LIB_COMPONENT *)m_Parent;
}
/**
* Tests if the given point is within the bounds of this object.
*
* Derived classes should override this function.
*
* @param aPosition - The coordinats to test.
* @return - true if a hit, else false
*/
virtual bool HitTest( const wxPoint& aPosition )
{
return false;
}
/**
* @param aPosRef - a wxPoint to test
* @param aThreshold - max distance to this object (usually the half
* thickness of a line)
* @param aTransform - the transform matrix
* @return - true if the point aPosRef is near this object
*/
virtual bool HitTest( wxPoint aPosRef, int aThreshold, const TRANSFORM& aTransform ) = 0;
/**
* @return the boundary box for this, in library coordinates
*/
virtual EDA_Rect GetBoundingBox()
{
return EDA_BaseStruct::GetBoundingBox();
}
virtual void DisplayInfo( WinEDA_DrawFrame* aFrame );
/**
* Make a copy of this draw item.
*
* Classes derived from LIB_DRAW_ITEM must implement DoGenCopy().
* This is just a placeholder for the derived class.
*
* @return Copy of this draw item.
*/
LIB_DRAW_ITEM* GenCopy() { return DoGenCopy(); }
/**
* Test LIB_DRAW_ITEM objects for equivalence.
*
* @param aOther - Object to test against.
* @return - True if object is identical to this object.
*/
bool operator==( const LIB_DRAW_ITEM& aOther ) const;
bool operator==( const LIB_DRAW_ITEM* aOther ) const
{
return *this == *aOther;
}
/**
* Test if another draw item is less than this draw object.
*
* @param aOther - Draw item to compare against.
* @return - True if object is less than this object.
*/
bool operator<( const LIB_DRAW_ITEM& aOther) const;
/**
* Set drawing object offset from the current position.
*
* @param aOffset - Cooridinates to offset position.
*/
void SetOffset( const wxPoint& aOffset ) { DoOffset( aOffset ); }
/**
* Test if any part of the draw object is inside rectangle bounds.
*
* This is used for block selection. The real work is done by the
* DoTestInside method for each derived object type.
*
* @param aRect - Rectangle to check against.
* @return - True if object is inside rectangle.
*/
bool Inside( EDA_Rect& aRect ) { return DoTestInside( aRect ); }
/**
* Move a draw object to a new \a aPosition.
*
* The real work is done by the DoMove method for each derived object type.
*
* @param aPosition - Position to move draw item to.
*/
void Move( const wxPoint& aPosition ) { DoMove( aPosition ); }
/**
* Return the current draw object start position.
*/
wxPoint GetPosition() { return DoGetPosition(); }
/**
* Mirror the draw object along the horizontal (X) axis about a point.
*
* @param aCenter - Point to mirror around.
*/
void MirrorHorizontal( const wxPoint& aCenter )
{
DoMirrorHorizontal( aCenter );
}
/**
* Rotate the draw item.
*/
virtual void Rotate() {}
/**
* Plot the draw item using the plot object.
*
* @param aPlotter - The plot object to plot to.
* @param aOffset - Plot offset position.
* @param aFill - Flag to indicate whether or not the object is filled.
* @param aTransform - The plot transform.
*/
void Plot( PLOTTER* aPlotter, const wxPoint& aOffset, bool aFill, const TRANSFORM& aTransform )
{
DoPlot( aPlotter, aOffset, aFill, aTransform );
}
/**
* Return the width of the draw item.
*
* @return Width of draw object.
*/
int GetWidth() { return DoGetWidth(); }
void SetWidth( int aWidth ) { DoSetWidth( aWidth ); }
/**
* Check if draw object can be filled.
*
* The default setting is false. If the derived object support filling,
* set the m_isFillable member to true.
*
* @return - True if draw object can be fill. Default is false.
*/
bool IsFillable() { return m_isFillable; }
/**
* Return the modified status of the draw object.
*
* @return - True if the draw object has been modified.
*/
bool IsModified() { return ( m_Flags & IS_CHANGED ) != 0; }
/**
* Return the new item status of the draw object.
*
* @return - True if the draw item has been added to the parent component.
*/
bool IsNew() { return ( m_Flags & IS_NEW ) != 0; }
bool IsMoving() { return ( m_Flags & IS_MOVED ); }
bool IsResizing() { return ( m_Flags & IS_RESIZED ); }
/**
* Return the draw item editing mode status.
*
* @return - True if the item is being edited.
*/
bool InEditMode() { return ( m_Flags & ( IS_NEW | IS_MOVED | IS_RESIZED ) ) != 0; }
void SetEraseLastDrawItem( bool aErase = true ) { m_eraseLastDrawItem = aErase; }
virtual int GetDefaultColor();
void SetUnit( int aUnit ) { m_Unit = aUnit; }
int GetUnit() { return m_Unit; }
void SetConvert( int aConvert ) { m_Convert = aConvert; }
int GetConvert() { return m_Convert; }
protected:
virtual LIB_DRAW_ITEM* DoGenCopy() = 0;
/**
* Provide the draw object specific comparison.
*
* This is called by the == and < operators.
*
* The sort order is as follows:
* - Component alternate part (DeMorgan) number.
* - Component part number.
* - KICAD_T enum value.
* - Result of derived classes comparison.
*/
virtual int DoCompare( const LIB_DRAW_ITEM& aOther ) const = 0;
virtual void DoOffset( const wxPoint& aOffset ) = 0;
virtual bool DoTestInside( EDA_Rect& aRect ) = 0;
virtual void DoMove( const wxPoint& aPosition ) = 0;
virtual wxPoint DoGetPosition() = 0;
virtual void DoMirrorHorizontal( const wxPoint& aCenter ) = 0;
virtual void DoPlot( PLOTTER* aPlotter, const wxPoint& aOffset, bool aFill,
const TRANSFORM& aTransform ) = 0;
virtual int DoGetWidth() = 0;
virtual void DoSetWidth( int aWidth ) = 0;
/** Flag to indicate if draw item is fillable. Default is false. */
bool m_isFillable;
};
#endif // _LIB_DRAW_ITEM_H_