tool_base.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013 CERN
 * Copyright (C) 2016-2020 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Tomasz Wlostowski <tomasz.wlostowski@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 __TOOL_BASE_H
#define __TOOL_BASE_H

#include <cassert>
#include <eda_item.h>    // for KICAD_T

#include <tool/tool_event.h>

#include <functional>

class EDA_ITEM;
class TOOL_MANAGER;
class TOOLS_HOLDER;

namespace KIGFX
{
class VIEW;
class VIEW_CONTROLS;
}

enum TOOL_TYPE
{
    INTERACTIVE = 0x01,

    BATCH       = 0x02
};

typedef int TOOL_ID;

using TOOL_STATE_FUNC = std::function<int(const TOOL_EVENT&)>;


class TOOL_BASE
{
public:
    TOOL_BASE( TOOL_TYPE aType, TOOL_ID aId, const std::string& aName = std::string( "" ) ) :
        m_type( aType ),
        m_toolId( aId ),
        m_toolName( aName ),
        m_toolMgr( NULL ) {};

    virtual ~TOOL_BASE() {};

    enum RESET_REASON
    {
        RUN,                
        MODEL_RELOAD,       
        GAL_SWITCH          
    };

    virtual bool Init()
    {
        return true;
    }

    virtual void Reset( RESET_REASON aReason ) = 0;

    TOOL_TYPE GetType() const
    {
        return m_type;
    }

    TOOL_ID GetId() const
    {
        return m_toolId;
    }

    const std::string& GetName() const
    {
        return m_toolName;
    }

    TOOL_MANAGER* GetManager() const
    {
        return m_toolMgr;
    }

    //TOOL_SETTINGS& GetAdapter();

    bool IsToolActive() const;

protected:
    friend class TOOL_MANAGER;
    friend class TOOL_SETTINGS;

    void attachManager( TOOL_MANAGER* aManager );

    KIGFX::VIEW* getView() const;

    KIGFX::VIEW_CONTROLS* getViewControls() const;

    template <typename T>
    T* getEditFrame() const
    {
#if !defined( QA_TEST )   // Dynamic casts give the linker a siezure in the test framework
        wxASSERT( dynamic_cast<T*>( getToolHolderInt() ) );
#endif
        return static_cast<T*>( getToolHolderInt() );
    }

    template <typename T>
    T* getModel() const
    {
        EDA_ITEM* m = getModelInt();
#if !defined( QA_TEST )   // Dynamic casts give the linker a siezure in the test framework
        wxASSERT( dynamic_cast<T*>( m ) );
#endif
        return static_cast<T*>( m );
    }

    TOOL_TYPE m_type;

    TOOL_ID m_toolId;

    std::string m_toolName;
    TOOL_MANAGER* m_toolMgr;
    //TOOL_SETTINGS m_toolSettings;

private:
    // hide the implementation to avoid spreading half of
    // kicad and wxWidgets headers to the tools that may not need them at all!
    EDA_ITEM* getModelInt() const;
    TOOLS_HOLDER* getToolHolderInt() const;
};

#endif