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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/groupprimitive2d.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
namespace drawinglayer::primitive2d
{
/** TransformPrimitive2D class
This is one of the basic grouping primitives and it provides
embedding a sequence of primitives (a geometry) into a
transformation. All renderers have to handle this, usually by
building a current transformation stack (linear combination)
and applying this to all to-be-rendered geometry. If not handling
this, the output will be mostly wrong since this primitive is
widely used.
It does transform by embedding an existing geometry into a
transformation as Child-content. This allows re-usage of the
refcounted Uno-Api primitives and their existing, buffered
decompositions.
It could e.g. be used to show a single object geometry in 1000
different, transformed states without the need to create those
thousand primitive contents.
*/
class DRAWINGLAYER_DLLPUBLIC TransformPrimitive2D final : public GroupPrimitive2D
{
private:
// the transformation to apply to the child geometry
basegfx::B2DHomMatrix maTransformation;
public:
/// constructor
TransformPrimitive2D(
const basegfx::B2DHomMatrix& rTransformation,
const Primitive2DContainer& rChildren);
/// data read access
const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; }
/// compare operator
virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
/// get range
virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
/// provide unique ID
virtual sal_uInt32 getPrimitive2DID() const override;
};
} // end of namespace drawinglayer::primitive2d
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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