kicad/pcbnew/tools/pcb_point_editor.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013-2017 CERN
* Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
*
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* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 PCB_POINT_EDITOR_H
#define PCB_POINT_EDITOR_H
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#include <tool/tool_interactive.h>
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#include "tool/edit_points.h"
#include <status_popup.h>
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#include <memory>
class PCB_SELECTION_TOOL;
class SHAPE_POLY_SET;
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/**
* Tool that displays edit points allowing to modify items by dragging the points.
*/
class PCB_POINT_EDITOR : public PCB_TOOL_BASE
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{
public:
PCB_POINT_EDITOR();
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/// @copydoc TOOL_INTERACTIVE::Reset()
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void Reset( RESET_REASON aReason ) override;
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/// @copydoc TOOL_INTERACTIVE::Init()
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bool Init() override;
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/**
* Change selection event handler.
*/
int OnSelectionChange( const TOOL_EVENT& aEvent );
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/**
* Indicate the cursor is over an edit point.
*
* Used to coordinate cursor shapes with other tools.
*/
bool HasPoint() { return m_editedPoint != nullptr; }
private:
///< Set up handlers for various events.
void setTransitions() override;
void buildForPolyOutline( std::shared_ptr<EDIT_POINTS> points, const SHAPE_POLY_SET* aOutline );
std::shared_ptr<EDIT_POINTS> makePoints( EDA_ITEM* aItem );
///< Update item's points with edit points.
void updateItem() const;
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/**
* Validate a polygon and displays a popup warning if invalid.
*
* @param aModified is the polygon to be checked.
* @return True if polygon is valid.
*/
bool validatePolygon( SHAPE_POLY_SET& aModified ) const;
///< Update edit points with item's points.
void updatePoints();
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///< Update which point is being edited.
void updateEditedPoint( const TOOL_EVENT& aEvent );
///< Set the current point being edited. NULL means none.
void setEditedPoint( EDIT_POINT* aPoint );
inline int getEditedPointIndex() const
{
for( unsigned i = 0; i < m_editPoints->PointsSize(); ++i )
{
if( m_editedPoint == &m_editPoints->Point( i ) )
return i;
}
return wxNOT_FOUND;
}
///< Return true if aPoint is the currently modified point.
inline bool isModified( const EDIT_POINT& aPoint ) const
{
return m_editedPoint == &aPoint;
}
///< Set up an alternative constraint (typically enabled upon a modifier key being pressed).
void setAltConstraint( bool aEnabled );
///< Return a point that should be used as a constrainer for 45 degrees mode.
EDIT_POINT get45DegConstrainer() const;
///< Condition to display "Create corner" context menu entry.
static bool addCornerCondition( const SELECTION& aSelection );
///< Determine if the tool can currently add a corner to the given item
static bool canAddCorner( const EDA_ITEM& aItem );
///< Condition to display "Remove corner" context menu entry.
bool removeCornerCondition( const SELECTION& aSelection );
/// TOOL_ACTION handlers
int addCorner( const TOOL_EVENT& aEvent );
int removeCorner( const TOOL_EVENT& aEvent );
int modifiedSelection( const TOOL_EVENT& aEvent );
/**
* Move an end point of the arc, while keeping the tangent at the other endpoint.
*/
void editArcEndpointKeepTangent( PCB_SHAPE* aArc, const VECTOR2I& aCenter,
const VECTOR2I& aStart, const VECTOR2I& aMid,
const VECTOR2I& aEnd, const VECTOR2I& aCursor ) const;
/**
* Move an end point of the arc around the circumference.
*/
void editArcEndpointKeepCenter( PCB_SHAPE* aArc, const VECTOR2I& aCenter,
const VECTOR2I& aStart, const VECTOR2I& aMid,
const VECTOR2I& aEnd, const VECTOR2I& aCursor ) const;
/**
* Move the mid point of the arc, while keeping the two endpoints.
*/
void editArcMidKeepEndpoints( PCB_SHAPE* aArc, const VECTOR2I& aStart, const VECTOR2I& aEnd,
const VECTOR2I& aCursor ) const;
/**
* Move the mid point of the arc, while keeping the angle.
*/
void editArcMidKeepCenter( PCB_SHAPE* aArc, const VECTOR2I& aCenter, const VECTOR2I& aStart,
const VECTOR2I& aMid, const VECTOR2I& aEnd,
const VECTOR2I& aCursor ) const;
///< Change the edit method to an alternative method ( currently, arcs only )
int changeEditMethod( const TOOL_EVENT& aEvent );
PCB_SELECTION_TOOL* m_selectionTool;
std::unique_ptr<STATUS_TEXT_POPUP> m_statusPopup;
std::shared_ptr<EDIT_POINTS> m_editPoints;
EDIT_POINT* m_editedPoint;
EDIT_POINT* m_hoveredPoint;
EDIT_POINT m_original; ///< Original position for the current drag point.
bool m_refill;
bool m_altEditMethod;
// Alternative constraint, enabled while a modifier key is held
std::shared_ptr<EDIT_CONSTRAINT<EDIT_POINT>> m_altConstraint;
EDIT_POINT m_altConstrainer;
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};
#endif