// TortoiseSVN - a Windows shell extension for easy version control

// Copyright (C) 2003-2008, 2012-2013 - TortoiseSVN

// 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, write to the Free Software Foundation,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#pragma once

// include base classes

#include "CopyFilterOptions.h"
#include "ModificationOptions.h"
#include "RevisionGraphOptionsImpl.h"
#include "resource.h"

/** Remove all "M" nodes that are neither HEAD nor the root of sub-paths.
*/

class CRemoveSimpleChanges
    : public CModificationOptionImpl
                < CCombineInterface
                    < ICopyFilterOption
                    , IModificationOption>
                , 200
                , ID_VIEW_SHOWALLREVISIONS
                , true           // crawl branches first
                , true           // root first
                , true>          // this is a cyclic option
{
public:

    /// construction

    CRemoveSimpleChanges (CRevisionGraphOptionList& list);

    /// implement IRevisionGraphOption: This option is negated.

    virtual bool IsActive() const override;

    /// implement ICopyFilterOption (pre-filter most nodes)

    virtual EResult ShallRemove (const CFullGraphNode* node) const override;

    /// implement IModificationOption (post-filter unused copy-from nodes)

    virtual void Apply (CVisibleGraph* graph, CVisibleGraphNode* node) override;
};