kicad/pcbnew/tools/item_modification_routine.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2023 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
*/
#ifndef ITEM_MODIFICATION_ROUTINE_H_
#define ITEM_MODIFICATION_ROUTINE_H_
#include <functional>
#include <memory>
#include <optional>
#include <vector>
#include <board_item.h>
#include <pcb_shape.h>
#include <geometry/chamfer.h>
/**
* @brief An object that has the ability to modify items on a board
*
* For example, such an object could take pairs of lines and fillet them,
* or produce other modification to items.
*
* Deliberately not called a "tool" to distinguish it from true
* tools that are used interactively by the user.
*/
class ITEM_MODIFICATION_ROUTINE
{
public:
/*
* Handlers for receiving changes from the tool
*
* These are used to allow the tool's caller to make changes to
* affected board items using extra information that the tool
* does not have access to (e.g. is this an FP editor, was
* the line created from a rectangle and needs to be added, not
* modified, etc).
*
* We can't store them up until the end, because modifications
* need the old state to be known, so this allows the caller to
* inject the dependencies for how to handle the changes.
*/
class CHANGE_HANDLER
{
public:
virtual ~CHANGE_HANDLER() = default;
/**
* @brief Report that the tools wants to add a new item to the board
*
* @param aItem the new item
*/
virtual void AddNewItem( std::unique_ptr<PCB_SHAPE> aItem ) = 0;
/**
* @brief Report that the tool has modified an item on the board
*
* @param aItem the modified item
*/
virtual void MarkItemModified( PCB_SHAPE& aItem ) = 0;
/**
* @brief Report that the tool has deleted an item on the board
*
* @param aItem the deleted item
*/
virtual void DeleteItem( PCB_SHAPE& aItem ) = 0;
};
/**
* @brief A handler that is based on a set of callbacks provided
* by the user of the ITEM_MODIFICATION_ROUTINE
*/
class CALLABLE_BASED_HANDLER : public CHANGE_HANDLER
{
public:
/**
* Handler for creating a new item on the board
*
* @param PCB_SHAPE& the shape to add
*/
using CREATION_HANDLER = std::function<void( std::unique_ptr<PCB_SHAPE> )>;
/**
* Handler for modifying or deleting an existing item on the board
*
* @param PCB_SHAPE& the shape to modify
*/
using MODIFICATION_HANDLER = std::function<void( PCB_SHAPE& )>;
/**
* Handler for modifying or deleting an existing item on the board
*
* @param PCB_SHAPE& the shape to delete
*/
using DELETION_HANDLER = std::function<void( PCB_SHAPE& )>;
CALLABLE_BASED_HANDLER( CREATION_HANDLER aCreationHandler,
MODIFICATION_HANDLER aModificationHandler,
DELETION_HANDLER aDeletionHandler ) :
m_creationHandler( aCreationHandler ),
m_modificationHandler( aModificationHandler ), m_deletionHandler( aDeletionHandler )
{
}
/**
* @brief Report that the tools wants to add a new item to the board
*
* @param aItem the new item
*/
void AddNewItem( std::unique_ptr<PCB_SHAPE> aItem ) override
{
m_creationHandler( std::move( aItem ) );
}
/**
* @brief Report that the tool has modified an item on the board
*
* @param aItem the modified item
*/
void MarkItemModified( PCB_SHAPE& aItem ) override { m_modificationHandler( aItem ); }
/**
* @brief Report that the tool has deleted an item on the board
*
* @param aItem the deleted item
*/
void DeleteItem( PCB_SHAPE& aItem ) override { m_deletionHandler( aItem ); }
CREATION_HANDLER m_creationHandler;
MODIFICATION_HANDLER m_modificationHandler;
DELETION_HANDLER m_deletionHandler;
};
ITEM_MODIFICATION_ROUTINE( BOARD_ITEM* aBoard, CHANGE_HANDLER& aHandler ) :
m_board( aBoard ), m_handler( aHandler ), m_numSuccesses( 0 ), m_numFailures( 0 )
{
}
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virtual ~ITEM_MODIFICATION_ROUTINE() = default;
unsigned GetSuccesses() const { return m_numSuccesses; }
unsigned GetFailures() const { return m_numFailures; }
virtual wxString GetCommitDescription() const = 0;
virtual wxString GetCompleteFailureMessage() const = 0;
virtual wxString GetSomeFailuresMessage() const = 0;
protected:
/**
* The BOARD used when creating new shapes
*/
BOARD_ITEM* GetBoard() const { return m_board; }
/**
* Mark that one of the actions succeeded.
*/
void AddSuccess() { ++m_numSuccesses; }
/**
* Mark that one of the actions failed.
*/
void AddFailure() { ++m_numFailures; }
/**
* @brief Helper function useful for multiple tools: modify a line or delete
* it if it has zero length
*
* @param aItem the line to modify
* @param aSeg the new line geometry
*/
bool ModifyLineOrDeleteIfZeroLength( PCB_SHAPE& aItem, const SEG& aSeg );
/**
* @brief Access the handler for making changes to the board
*/
CHANGE_HANDLER& GetHandler() { return m_handler; }
private:
BOARD_ITEM* m_board;
CHANGE_HANDLER& m_handler;
unsigned m_numSuccesses;
unsigned m_numFailures;
};
/**
* A tool that acts on a pair of lines. For example, fillets, chamfers, extensions, etc
*/
class PAIRWISE_LINE_ROUTINE : public ITEM_MODIFICATION_ROUTINE
{
public:
PAIRWISE_LINE_ROUTINE( BOARD_ITEM* aBoard, CHANGE_HANDLER& aHandler ) :
ITEM_MODIFICATION_ROUTINE( aBoard, aHandler )
{
}
/**
* @brief Perform the action on the pair of lines given
*
* The routine will be called repeatedly with all possible pairs of lines
* in the selection. The tools should handle the ones it's interested in.
* This means that the same line can appear multiple times with different
* partners.
*
* The routine can skip lines that it's not interested in by returning without
* adding to the success or failure count.
*
* @param aLineA the first line
* @param aLineB the second line
* @return did the action succeed
*/
virtual void ProcessLinePair( PCB_SHAPE& aLineA, PCB_SHAPE& aLineB ) = 0;
};
/**
* Pairwise line tool that adds a fillet to the lines.
*/
class LINE_FILLET_ROUTINE : public PAIRWISE_LINE_ROUTINE
{
public:
LINE_FILLET_ROUTINE( BOARD_ITEM* aBoard, CHANGE_HANDLER& aHandler, int filletRadiusIU ) :
PAIRWISE_LINE_ROUTINE( aBoard, aHandler ), m_filletRadiusIU( filletRadiusIU )
{
}
wxString GetCommitDescription() const override;
wxString GetCompleteFailureMessage() const override;
wxString GetSomeFailuresMessage() const override;
void ProcessLinePair( PCB_SHAPE& aLineA, PCB_SHAPE& aLineB ) override;
private:
int m_filletRadiusIU;
};
/**
* Pairwise line tool that adds a chamfer between the lines.
*/
class LINE_CHAMFER_ROUTINE : public PAIRWISE_LINE_ROUTINE
{
public:
LINE_CHAMFER_ROUTINE( BOARD_ITEM* aBoard, CHANGE_HANDLER& aHandler,
CHAMFER_PARAMS aChamferParams ) :
PAIRWISE_LINE_ROUTINE( aBoard, aHandler ),
m_chamferParams( std::move( aChamferParams ) )
{
}
wxString GetCommitDescription() const override;
wxString GetCompleteFailureMessage() const override;
wxString GetSomeFailuresMessage() const override;
void ProcessLinePair( PCB_SHAPE& aLineA, PCB_SHAPE& aLineB ) override;
private:
const CHAMFER_PARAMS m_chamferParams;
};
/**
* Pairwise extend to corner or meeting tool
*/
class LINE_EXTENSION_ROUTINE : public PAIRWISE_LINE_ROUTINE
{
public:
LINE_EXTENSION_ROUTINE( BOARD_ITEM* aBoard, CHANGE_HANDLER& aHandler ) :
PAIRWISE_LINE_ROUTINE( aBoard, aHandler )
{
}
wxString GetCommitDescription() const override;
wxString GetCompleteFailureMessage() const override;
wxString GetSomeFailuresMessage() const override;
void ProcessLinePair( PCB_SHAPE& aLineA, PCB_SHAPE& aLineB ) override;
};
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#endif /* ITEM_MODIFICATION_ROUTINE_H_ */