action_manager.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) 2020 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @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 ACTION_MANAGER_H_
#define ACTION_MANAGER_H_

#include <list>
#include <map>
#include <string>
#include <set>

#include <tool/selection_conditions.h>

class TOOL_BASE;
class TOOL_MANAGER;
class TOOL_ACTION;

struct ACTION_CONDITIONS
{
    ACTION_CONDITIONS()
    {
        checkCondition  = SELECTION_CONDITIONS::ShowNever;      // Never check by default
        enableCondition = SELECTION_CONDITIONS::ShowAlways;     // Always enable by default
        showCondition   = SELECTION_CONDITIONS::ShowAlways;     // Always show by default
    }

    ACTION_CONDITIONS& Check( const SELECTION_CONDITION& aCondition )
    {
        checkCondition = aCondition;
        return *this;
    }

    ACTION_CONDITIONS& Enable( const SELECTION_CONDITION& aCondition )
    {
        enableCondition = aCondition;
        return *this;
    }

    ACTION_CONDITIONS& Show( const SELECTION_CONDITION& aCondition )
    {
        showCondition = aCondition;
        return *this;
    }

    SELECTION_CONDITION checkCondition;     
    SELECTION_CONDITION enableCondition;    
    SELECTION_CONDITION showCondition;      
};

class ACTION_MANAGER
{
public:
    ACTION_MANAGER( TOOL_MANAGER* aToolManager );

    ~ACTION_MANAGER();

    void RegisterAction( TOOL_ACTION* aAction );

    static int MakeActionId( const std::string& aActionName );

    const std::map<std::string, TOOL_ACTION*>& GetActions() const;

    TOOL_ACTION* FindAction( const std::string& aActionName ) const;

    bool RunHotKey( int aHotKey ) const;

    int GetHotKey( const TOOL_ACTION& aAction ) const;

    void UpdateHotKeys( bool aFullUpdate );

    static std::list<TOOL_ACTION*>& GetActionList()
    {
        static std::list<TOOL_ACTION*> actionList;

        return actionList;
    }

    void SetConditions( const TOOL_ACTION& aAction, const ACTION_CONDITIONS& aConditions );

    const ACTION_CONDITIONS* GetCondition( const TOOL_ACTION& aAction ) const;

private:
    // Resolve a hotkey by applying legacy and current settings over the action's
    // default hotkey.
    int processHotKey( TOOL_ACTION* aAction, std::map<std::string, int> aLegacyMap,
                       std::map<std::string, int> aHotKeyMap );

    TOOL_MANAGER* m_toolMgr;

    std::map<std::string, TOOL_ACTION*> m_actionNameIndex;

    typedef std::map<int, std::list<TOOL_ACTION*> > HOTKEY_LIST;
    HOTKEY_LIST m_actionHotKeys;

    std::map<int, int> m_hotkeys;

    std::map<int, ACTION_CONDITIONS> m_uiConditions;
};

#endif /* ACTION_MANAGER_H_ */