ac90d5a823
See tdf#94879 for motivation. Change-Id: Ice9c1353d3411146f11d4ca34eb6369403cd4094 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175294 Reviewed-by: Miklos Vajna <vmiklos@collabora.com> Tested-by: Jenkins
95 lines
3.6 KiB
C++
95 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SVX_VIEWPT3D_HXX
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#define INCLUDED_SVX_VIEWPT3D_HXX
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#include <svx/svxdllapi.h>
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#include <basegfx/matrix/b3dhommatrix.hxx>
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#include <basegfx/point/b3dpoint.hxx>
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#include <basegfx/vector/b3dvector.hxx>
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#include <tools/gen.hxx>
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// predefines
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namespace basegfx { class B3DRange; } // end of namespace basegfx
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/*************************************************************************
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|*
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|* enums for projection
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|*
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\************************************************************************/
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enum class ProjectionType { Parallel, Perspective };
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/*************************************************************************
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|*
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|* 3D viewport according to PHIGS
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|*
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\************************************************************************/
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class SVXCORE_DLLPUBLIC Viewport3D
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{
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protected:
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basegfx::B3DHomMatrix m_aViewTf; // the real transformations matrix
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basegfx::B3DPoint m_aVRP; // View Reference Point
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basegfx::B3DVector m_aVPN; // View Plane Normal
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basegfx::B3DVector m_aVUV; // View Up Vector
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basegfx::B3DPoint m_aPRP; // Projection Reference Point(View-coordinates)
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// up to now only the z-coordinate is considered
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ProjectionType m_eProjection; // kind of the projection
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tools::Rectangle m_aDeviceRect; // position and size of the output area
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struct
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{
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double X, Y, W, H; // position and size of the view window
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} m_aViewWin; // in view coordinates
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basegfx::B3DPoint m_aViewPoint; //observers position in world coordinates;
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// is calculated by the transformation
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bool m_bTfValid; // flag, if transformation is valid
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public:
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Viewport3D();
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void SetVRP(const basegfx::B3DPoint& rNewVRP);
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void SetVPN(const basegfx::B3DVector& rNewVPN);
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void SetVUV(const basegfx::B3DVector& rNewVUV);
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void SetPRP(const basegfx::B3DPoint& rNewPRP);
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const basegfx::B3DPoint& GetVRP() const { return m_aVRP; }
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const basegfx::B3DVector& GetVUV() const { return m_aVUV; }
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void SetProjection(ProjectionType ePrj)
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{ m_eProjection = ePrj; m_bTfValid = false; }
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ProjectionType GetProjection() const { return m_eProjection; }
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void SetViewWindow(double fX, double fY, double fW, double fH);
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void SetDeviceWindow(const tools::Rectangle& rRect);
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const tools::Rectangle& GetDeviceWindow() const { return m_aDeviceRect; }
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// returns observers position in world coordinates
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const basegfx::B3DPoint& GetViewPoint();
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};
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#endif // INCLUDED_SVX_VIEWPT3D_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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