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// -*- mode: c++; c-file-style: "linux"; c-basic-offset: 2; indent-tabs-mode: nil -*-
//
// Copyright (C) 2020 Kuba Ober <kuba@bertec.com>
//
// 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// SPDX-License-Identifier: GPL-2.0+
#ifndef COMPOSITEDATAOBJECT_H
#define COMPOSITEDATAOBJECT_H
#include <wx/clipbrd.h>
#include <memory>
#include <vector>
/*!
* \file The declaration of the CompositeDataObject class - a superset
* of the wxDataObjectComposite functionality.
*/
//! A composite data object like wxDataObjectComposite, but accepts also
//! non-simple data objects. Only the Get direction is supported.
class CompositeDataObject final : public wxDataObject
{
public:
CompositeDataObject();
~CompositeDataObject() override;
void Add(wxDataObject *object, bool preferred = false);
wxDataObject *GetObject(const wxDataFormat& format,
wxDataObjectBase::Direction dir = Get) const;
wxDataFormat GetPreferredFormat(Direction dir=Get) const override;
void SetPreferredFormat(const wxDataFormat &format);
size_t GetFormatCount(Direction dir=Get) const override;
void GetAllFormats(wxDataFormat *formats, Direction dir=Get) const override;
size_t GetDataSize(const wxDataFormat &format) const override;
bool GetDataHere(const wxDataFormat &format, void *buf) const override;
#ifdef __WXMSW__
const void* GetSizeFromBuffer(const void* buffer, size_t* size,
const wxDataFormat& format) override;
void* SetSizeInBuffer(void* buffer, size_t size, const wxDataFormat& format) override;
size_t GetBufferOffset(const wxDataFormat& format) override;
#endif
private:
struct Entry
{
wxDataFormat format;
std::shared_ptr<wxDataObject> object;
Entry(const wxDataFormat &format, std::shared_ptr<wxDataObject> object) :
format(format), object(object) {}
};
std::vector<Entry> m_entries;
wxDataFormat m_preferredFormat;
};
#endif // COMPOSITEDATAOBJECT_H
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