342 lines
12 KiB
C++
342 lines
12 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015 Jean-Pierre Charras, jaen-pierre.charras at wanadoo.fr
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* Copyright (C) 2015 Wayne Stambaugh <stambaughw@gmail.com>
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* Copyright (C) 2004-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef _LIB_ITEM_H_
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#define _LIB_ITEM_H_
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#include <eda_item.h>
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#include <eda_rect.h>
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#include <eda_shape.h>
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#include <transform.h>
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#include <render_settings.h>
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class LINE_READER;
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class OUTPUTFORMATTER;
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class LIB_SYMBOL;
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class PLOTTER;
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class LIB_PIN;
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class MSG_PANEL_ITEM;
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using KIGFX::RENDER_SETTINGS;
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extern const int fill_tab[];
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#define MINIMUM_SELECTION_DISTANCE 2 // Minimum selection distance in internal units
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/**
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* Helper for defining a list of pin object pointers. The list does not
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* use a Boost pointer class so the object pointers do not accidentally get
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* deleted when the container is deleted.
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*/
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typedef std::vector< LIB_PIN* > LIB_PINS;
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/**
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* The base class for drawable items used by schematic library symbols.
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*/
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class LIB_ITEM : public EDA_ITEM
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{
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public:
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LIB_ITEM( KICAD_T aType, LIB_SYMBOL* aSymbol = nullptr, int aUnit = 0, int aConvert = 0 );
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// Do not create a copy constructor. The one generated by the compiler is adequate.
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virtual ~LIB_ITEM() { }
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// Define the enums for basic
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enum LIB_CONVERT : int { BASE = 1, DEMORGAN = 2 };
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/**
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* The list of flags used by the #compare function.
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*
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* - UNIT This flag relaxes unit, conversion and pin number constraints. It is used for
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* #LIB_ITEM object unit comparisons.
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* - EQUALITY This flag relaxes ordering contstraints so that fields, etc. don't have to
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* appear in the same order to be considered equal.
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* - ERC This flag relaxes constraints on data that is settable in the schematic editor. It
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* compares only symbol-editor-only data.
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*/
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enum COMPARE_FLAGS : int
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{
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UNIT = 0x01,
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EQUALITY = 0x02,
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ERC = 0x04
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};
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/**
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* Provide a user-consumable name of the object type. Perform localization when
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* called so that run-time language selection works.
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*/
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virtual wxString GetTypeName() const = 0;
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/**
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* Begin drawing a symbol library draw item at \a aPosition.
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*
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* It typically would be called on a left click when a draw tool is selected in
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* the symbol library editor and one of the graphics tools is selected.
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*
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* @param aPosition The position in drawing coordinates where the drawing was started.
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* May or may not be required depending on the item being drawn.
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*/
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virtual void BeginEdit( const VECTOR2I& aPosition ) {}
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/**
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* Continue an edit in progress at \a aPosition.
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*
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* This is used to perform the next action while drawing an item. This would be
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* called for each additional left click when the mouse is captured while the item
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* is being drawn.
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*
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* @param aPosition The position of the mouse left click in drawing coordinates.
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* @return True if additional mouse clicks are required to complete the edit in progress.
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*/
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virtual bool ContinueEdit( const VECTOR2I& aPosition ) { return false; }
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/**
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* End an object editing action.
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*
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* This is used to end or abort an edit action in progress initiated by BeginEdit().
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*/
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virtual void EndEdit() {}
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/**
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* Calculate the attributes of an item at \a aPosition when it is being edited.
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*
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* This method gets called by the Draw() method when the item is being edited. This
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* probably should be a pure virtual method but bezier curves are not yet editable in
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* the symbol library editor. Therefore, the default method does nothing.
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*
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* @param aPosition The current mouse position in drawing coordinates.
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*/
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virtual void CalcEdit( const VECTOR2I& aPosition ) {}
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/**
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* Draw an item
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*
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* @param aDC Device Context (can be null)
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* @param aOffset Offset to draw
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* @param aData Value or pointer used to pass others parameters, depending on body items.
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* Used for some items to force to force no fill mode ( has meaning only for
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* items what can be filled ). used in printing or moving objects mode or to
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* pass reference to the lib symbol for pins.
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* @param aTransform Transform Matrix (rotation, mirror ..)
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*/
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virtual void Print( const RENDER_SETTINGS* aSettings, const VECTOR2I& aOffset, void* aData,
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const TRANSFORM& aTransform );
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virtual int GetPenWidth() const = 0;
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const wxString& GetDefaultFont() const;
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virtual int GetEffectivePenWidth( const RENDER_SETTINGS* aSettings ) const
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{
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// For historical reasons, a stored value of 0 means "default width" and negative
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// numbers meant "don't stroke".
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if( GetPenWidth() < 0 )
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return 0;
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else if( GetPenWidth() == 0 )
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return std::max( aSettings->GetDefaultPenWidth(), aSettings->GetMinPenWidth() );
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else
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return std::max( GetPenWidth(), aSettings->GetMinPenWidth() );
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}
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LIB_SYMBOL* GetParent() const
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{
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return (LIB_SYMBOL*) m_parent;
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}
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void ViewGetLayers( int aLayers[], int& aCount ) const override;
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bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override
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{
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// This is just here to prevent annoying compiler warnings about hidden overloaded
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// virtual functions
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return EDA_ITEM::HitTest( aPosition, aAccuracy );
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}
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bool HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy = 0 ) const override;
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/**
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* @return the boundary box for this, in library coordinates
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*/
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const BOX2I GetBoundingBox() const override { return EDA_ITEM::GetBoundingBox(); }
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/**
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* Display basic info (type, part and convert) about the current item in message panel.
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* <p>
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* This base function is used to display the information common to the
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* all library items. Call the base class from the derived class or the
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* common information will not be updated in the message panel.
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* </p>
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* @param aList is the list to populate.
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*/
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void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
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/**
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* Test LIB_ITEM objects for equivalence.
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*
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* @param aOther Object to test against.
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* @return True if object is identical to this object.
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*/
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bool operator==( const LIB_ITEM& aOther ) const;
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bool operator==( const LIB_ITEM* aOther ) const
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{
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return *this == *aOther;
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}
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/**
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* Test if another draw item is less than this draw object.
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*
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* @param aOther - Draw item to compare against.
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* @return - True if object is less than this object.
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*/
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bool operator<( const LIB_ITEM& aOther) const;
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/**
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* Set the drawing object by \a aOffset from the current position.
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*
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* @param aOffset Coordinates to offset the item position.
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*/
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virtual void Offset( const VECTOR2I& aOffset ) = 0;
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/**
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* Move a draw object to \a aPosition.
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*
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* @param aPosition Position to move draw item to.
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*/
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virtual void MoveTo( const VECTOR2I& aPosition ) = 0;
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void SetPosition( const VECTOR2I& aPosition ) override { MoveTo( aPosition ); }
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/**
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* Mirror the draw object along the horizontal (X) axis about \a aCenter point.
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*
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* @param aCenter Point to mirror around.
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*/
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virtual void MirrorHorizontal( const VECTOR2I& aCenter ) = 0;
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/**
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* Mirror the draw object along the MirrorVertical (Y) axis about \a aCenter point.
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*
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* @param aCenter Point to mirror around.
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*/
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virtual void MirrorVertical( const VECTOR2I& aCenter ) = 0;
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/**
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* Rotate the object about \a aCenter point.
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*
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* @param aCenter Point to rotate around.
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* @param aRotateCCW True to rotate counter clockwise. False to rotate clockwise.
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*/
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virtual void Rotate( const VECTOR2I& aCenter, bool aRotateCCW = true ) = 0;
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/**
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* Plot the draw item using the plot object.
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*
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* @param aPlotter The plot object to plot to.
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* @param aBackground a poor-man's Z-order. The routine will get called twice, first with
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* aBackground true and then with aBackground false.
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* @param aOffset Plot offset position.
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* @param aFill Flag to indicate whether or not the object is filled.
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* @param aTransform The plot transform.
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*/
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virtual void Plot( PLOTTER* aPlotter, bool aBackground, const VECTOR2I& aOffset,
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const TRANSFORM& aTransform ) const = 0;
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void SetUnit( int aUnit ) { m_unit = aUnit; }
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int GetUnit() const { return m_unit; }
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void SetConvert( int aConvert ) { m_convert = aConvert; }
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int GetConvert() const { return m_convert; }
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void SetPrivate( bool aPrivate ) { m_private = aPrivate; }
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bool IsPrivate() const { return m_private; }
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#if defined(DEBUG)
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void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
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#endif
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protected:
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/**
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* Provide the draw object specific comparison called by the == and < operators.
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*
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* The base object sort order which always proceeds the derived object sort order
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* is as follows:
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* - Symbol alternate part (DeMorgan) number.
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* - Symbol part number.
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* - KICAD_T enum value.
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* - Result of derived classes comparison.
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*
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* @note Make sure you call down to #LIB_ITEM::compare before doing any derived object
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* comparisons or you will break the sorting using the symbol library file format.
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*
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* @param aOther A reference to the other #LIB_ITEM to compare the arc against.
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* @param aCompareFlags The flags used to perform the comparison.
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*
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* @return An integer value less than 0 if the object is less than \a aOther object,
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* zero if the object is equal to \a aOther object, or greater than 0 if the
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* object is greater than \a aOther object.
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*/
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virtual int compare( const LIB_ITEM& aOther, int aCompareFlags = 0 ) const;
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/**
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* Print the item to \a aDC.
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*
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* @param aOffset A reference to a wxPoint object containing the offset where to draw
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* from the object's current position.
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* @param aData A pointer to any object specific data required to perform the draw.
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* @param aTransform A reference to a #TRANSFORM object containing drawing transform.
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*/
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virtual void print( const RENDER_SETTINGS* aSettings, const VECTOR2I& aOffset, void* aData,
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const TRANSFORM& aTransform ) = 0;
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private:
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friend class LIB_SYMBOL;
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protected:
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/**
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* Unit identification for multiple parts per package. Set to 0 if the item is common
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* to all units.
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*/
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int m_unit;
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/**
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* Shape identification for alternate body styles. Set 0 if the item is common to all
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* body styles. This is typially used for representing DeMorgan variants in KiCad.
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*/
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int m_convert;
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/**
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* Private items are shown only in the Symbol Editor.
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*/
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bool m_private;
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};
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#endif // _LIB_ITEM_H_
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