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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* @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 __POINT_EDITOR_H
#define __POINT_EDITOR_H
#include <boost/shared_ptr.hpp>
#include <tool/tool_interactive.h>
#include "edit_points.h"
class SELECTION_TOOL;
/**
* Class POINT_EDITOR
*
* Tool that displays edit points allowing to modify items by dragging the points.
*/
class POINT_EDITOR : public TOOL_INTERACTIVE
{
public:
POINT_EDITOR();
/// @copydoc TOOL_INTERACTIVE::Reset()
void Reset( RESET_REASON aReason );
/// @copydoc TOOL_INTERACTIVE::Init()
bool Init();
/**
* Function OnSelected()
*
* Change selection event handler.
*/
int OnSelectionChange( const TOOL_EVENT& aEvent );
///> Sets up handlers for various events.
void SetTransitions();
private:
///> Selection tool used for obtaining selected items
SELECTION_TOOL* m_selectionTool;
///> Currently edited point, NULL if there is none.
EDIT_POINT* m_editedPoint;
///> Original position for the current drag point.
EDIT_POINT m_original;
///> Currently available edit points.
boost::shared_ptr<EDIT_POINTS> m_editPoints;
// Alternative constraint, enabled while a modifier key is held
boost::shared_ptr<EDIT_CONSTRAINT<EDIT_POINT> > m_altConstraint;
// EDIT_POINT for alternative constraint mode
EDIT_POINT m_altConstrainer;
///> Updates item's points with edit points.
void updateItem() const;
///> Applies the last changes to the edited item.
void finishItem() const;
///> Updates edit points with item's points.
void updatePoints();
///> Updates which point is being edited.
void updateEditedPoint( const TOOL_EVENT& aEvent );
///> Sets the current point being edited. NULL means none.
void setEditedPoint( EDIT_POINT* aPoint );
///> Returns true if aPoint is the currently modified point.
inline bool isModified( const EDIT_POINT& aPoint ) const
{
return m_editedPoint == &aPoint;
}
///> Sets up an alternative constraint (typically enabled upon a modifier key being pressed).
void setAltConstraint( bool aEnabled );
///> Returns a point that should be used as a constrainer for 45 degrees mode.
EDIT_POINT get45DegConstrainer() const;
///> Adds a new edit point on a zone outline/line.
void addCorner( const VECTOR2I& aPoint );
///> Removes a corner.
void removeCorner( EDIT_POINT* aPoint );
///> Condition to display "Create corner" context menu entry.
static bool addCornerCondition( const SELECTION& aSelection );
///> Condition to display "Remove corner" context menu entry.
bool removeCornerCondition( const SELECTION& aSelection );
};
#endif
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