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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 .
*/
#ifndef INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION3D_HXX
#define INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION3D_HXX
#include <drawinglayer/drawinglayerdllapi.h>
#include <sal/config.h>
#include <o3tl/cow_wrapper.hxx>
// predefines
namespace drawinglayer::geometry {
class ImpViewInformation3D;
}
namespace basegfx {
class B3DHomMatrix;
}
namespace com::sun::star::beans { struct PropertyValue; }
namespace com::sun::star::uno { template <typename > class Sequence; }
namespace drawinglayer
{
namespace geometry
{
/** ViewInformation3D class
This class holds all view-relevant information for a 3d geometry. It works
together with UNO API definitions and supports holding a sequence of PropertyValues.
The most used data is for convenience offered directly using basegfx tooling classes.
It is an implementation to support the sequence of PropertyValues used in a
css::graphic::XPrimitive3D for C++ implementations working with those
*/
class DRAWINGLAYER_DLLPUBLIC ViewInformation3D
{
public:
typedef o3tl::cow_wrapper< ImpViewInformation3D, o3tl::ThreadSafeRefCountingPolicy > ImplType;
private:
/// pointer to private implementation class
ImplType mpViewInformation3D;
public:
/** Constructor: Create a ViewInformation3D
@param rObjectTransformation
The Transformation from Object to World coordinates (normally logic coordinates).
@param rOrientation
A part of the 3D ViewTransformation, the World to Camera coordinates transformation
which holds the camera coordinate system.
@param rProjection
A part of the 3D ViewTransformation, the Camera to Device transformation which
transforms coordinates to a [0.0 .. 1.0] device range in X,Y and Z. Z may be used
as source for Z-Buffers. This transformation may be e.g. a parallel projection,
but also a perspective one and thus may use the last line of the matrix.
@param rDeviceToView
A part of the 3D ViewTransformation, the Device to View transformation which normally
translates and scales from [0.0 .. 1.0] range in X,Y and Z to discrete position and
size.
rOrientation, rProjection and rDeviceToView define the 3D transformation pipeline
and are normally used multiplied together to have a direct transformation from
World to View coordinates
@param fViewTime
The time the view is defined for. Default is 0.0. This parameter is used e.g. for
animated objects
@param rExtendedParameters
A sequence of property values which allows holding various other parameters besides
the obvious and needed ones above. For this constructor none of the other parameters
should be added as data. The constructor will parse the given parameters and if
data for the other parameters is given, the value in rExtendedParameters will
be preferred and overwrite the given parameter
*/
ViewInformation3D(
const basegfx::B3DHomMatrix& rObjectTransformation,
const basegfx::B3DHomMatrix& rOrientation,
const basegfx::B3DHomMatrix& rProjection,
const basegfx::B3DHomMatrix& rDeviceToView,
double fViewTime,
const css::uno::Sequence< css::beans::PropertyValue >& rExtendedParameters);
/** Constructor: Create a ViewInformation3D
@param rViewParameters
A sequence of property values which allows holding any combination of local and various
other parameters. This constructor is fed completely with a sequence of PropertyValues
which will be parsed to be able to offer the most used ones in a convenient way.
*/
explicit ViewInformation3D(const css::uno::Sequence< css::beans::PropertyValue >& rViewParameters);
/// default (empty) constructor
ViewInformation3D();
/// copy constructor
ViewInformation3D(const ViewInformation3D&);
ViewInformation3D(ViewInformation3D&&);
/// destructor
~ViewInformation3D();
// checks if the incarnation is default constructed
bool isDefault() const;
/// assignment operator
ViewInformation3D& operator=(const ViewInformation3D&);
ViewInformation3D& operator=(ViewInformation3D&&);
/// compare operators
bool operator==(const ViewInformation3D& rCandidate) const;
bool operator!=(const ViewInformation3D& rCandidate) const { return !operator==(rCandidate); }
/// data access
const basegfx::B3DHomMatrix& getObjectTransformation() const;
const basegfx::B3DHomMatrix& getOrientation() const;
const basegfx::B3DHomMatrix& getProjection() const;
const basegfx::B3DHomMatrix& getDeviceToView() const;
double getViewTime() const;
/// for convenience, the linear combination of the above four transformations is offered
const basegfx::B3DHomMatrix& getObjectToView() const;
/** Get the uno::Sequence< beans::PropertyValue > which contains all ViewInformation
Use this call if You need to extract all contained ViewInformation. The ones
directly supported for convenience will be added to the ones only available
as PropertyValues. This set completely describes this ViewInformation3D and
can be used for complete information transport over UNO API.
*/
const css::uno::Sequence< css::beans::PropertyValue >& getViewInformationSequence() const;
/** Get the uno::Sequence< beans::PropertyValue > which contains only ViewInformation
not offered directly
Use this call if You only need ViewInformation which is not offered conveniently,
but only exists as PropertyValue. This is e.g. used to create partially updated
incarnations of ViewInformation3D without losing the only with PropertyValues
defined data. It does not contain a complete description.
*/
const css::uno::Sequence< css::beans::PropertyValue >& getExtendedInformationSequence() const;
};
} // end of namespace geometry
} // end of namespace drawinglayer
#endif //INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION3D_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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