PDG_CommandChunk.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * COMMENTS:
 */

#ifndef __PDG_COMMAND_CHUNK_H__
#define __PDG_COMMAND_CHUNK_H__

#include "PDG_API.h"

#include "PDG_Command.h"

#include <UT/UT_Array.h>
#include <UT/UT_NonCopyable.h>
#include <UT/UT_StringHolder.h>
#include <UT/UT_UniquePtr.h>

class PDG_Command;
class PDG_CommandManager;

class PDG_API PDG_CommandChunk : public PDG_Command 
{    
public:
    PDG_CommandChunk(bool is_delayed);
    PDG_CommandChunk(bool is_delayed, const UT_StringHolder& description);

    UT_NON_COPYABLE(PDG_CommandChunk)

    bool canDoIt() override;
    bool canUndoIt() override;

    void addCommand(UT_UniquePtr<PDG_Command> cmd);
    bool hasCommand();
    bool isDelayed() { return myIsDelayed; }
    PDG_CommandType baseCommandType() override;
    PDG_CommandType commandType() override
    {
        return PDG_COMMAND_CHUNK;
    };

    void description(UT_WorkBuffer& buffer, int depth=0) override;
    void fullDescription(UT_WorkBuffer& buffer) override;

    void commands(UT_Array<PDG_Command*>& commands) const;

protected:
    bool doCommand(PDG_GraphContext* context,
                   UT_WorkBuffer& errors) override;
    bool undoCommand(PDG_GraphContext* context,
                     UT_WorkBuffer& errors) override;
    bool myIsDelayed;
    UT_StringHolder myChunkDescription;
    UT_Array<UT_UniquePtr<PDG_Command>> myCommands;
};

#endif /* __PDG_COMMAND_CHUNK_H__ */