kicad/pcbnew/tools/tool_event_utils.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
* Copyright (C) 2017 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 TOOL_EVENT_UTILS_H
#define TOOL_EVENT_UTILS_H
#include <tool/tool_interactive.h>
class PCB_BASE_EDIT_FRAME;
/**
* Namespace TOOL_EVT_UTILS
*
* Utility functions for dealing with various tool events. These are
* free functions, so they interface with any classes exclusively via
* the public interfaces, so they don't need to be subsumed into the
* "helped" classes.
*/
namespace TOOL_EVT_UTILS
{
/**
* Function IsCancelInteractive()
*
* @return true if this event should restart/end an ongoing interactive
* tool's event loop (eg esc key, click cancel, start different
* tool)
*/
bool IsCancelInteractive( const TOOL_EVENT& aEvt );
/**
* Function isRotateToolEvt()
*
* @param aEvt event to check
* @return true if the event is a rotation action tool event
*/
bool IsRotateToolEvt( const TOOL_EVENT& aEvt );
/**
* Function getEventRotationAngle()
*
* Helper function to get a rotation angle based on a frame's
* configured angle and the direction indicated by a rotation action event
*
* @param aFrame the PCB edit frame to use to get the base rotation
* step value from
* @param aEvt the tool event - should be a rotation action event
* and should have a rotation multiplier parameter
*
* @return the rotation angle in clockwise internal units
*/
int GetEventRotationAngle( const PCB_BASE_EDIT_FRAME& aFrame,
const TOOL_EVENT& aEvt );
};
#endif // TOOL_EVENT_UTILS_H