diff options
Diffstat (limited to 'include/tools/b3dtrans.hxx')
| -rw-r--r-- | include/tools/b3dtrans.hxx | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/include/tools/b3dtrans.hxx b/include/tools/b3dtrans.hxx new file mode 100644 index 000000000000..c9e65950b1b6 --- /dev/null +++ b/include/tools/b3dtrans.hxx @@ -0,0 +1,259 @@ +/* -*- 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 _B3D_B3DTRANS_HXX +#define _B3D_B3DTRANS_HXX + +#define ZBUFFER_DEPTH_RANGE ((double)(256L * 256L * 256L)) + +#include <basegfx/matrix/b3dhommatrix.hxx> +#include <basegfx/range/b3drange.hxx> +#include <tools/gen.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <tools/toolsdllapi.h> + +/// Supported methods for setting the aspect ratio +enum Base3DRatio +{ + Base3DRatioGrow = 1, + Base3DRatioShrink, + Base3DRatioMiddle +}; + +/// Supported projection types +enum Base3DProjectionType +{ + Base3DProjectionTypeParallel = 1, + Base3DProjectionTypePerspective +}; + +/// Transformation sets for 3D output +class TOOLS_DLLPUBLIC B3dTransformationSet +{ +private: + // Object Matrix Object -> World + basegfx::B3DHomMatrix maObjectTrans; + basegfx::B3DHomMatrix maInvObjectTrans; + + // Orientation Matrix + basegfx::B3DHomMatrix maOrientation; + basegfx::B3DHomMatrix maInvOrientation; + + // Projection Matrix + basegfx::B3DHomMatrix maProjection; + basegfx::B3DHomMatrix maInvProjection; + + // Texture Matrices + basegfx::B2DHomMatrix maTexture; + + // Special transformation set for converting Object -> Device + basegfx::B3DHomMatrix maObjectToDevice; + + // Transposed and inversed matrix for vector transformations + basegfx::B3DHomMatrix maInvTransObjectToEye; + + // Transformation for World->View + basegfx::B3DHomMatrix maMatFromWorldToView; + basegfx::B3DHomMatrix maInvMatFromWorldToView; + + // Parameters for ViewportTransformation + basegfx::B3DVector maScale; + basegfx::B3DVector maTranslate; + + // ViewPlane DeviceRectangle (user-defined) + double mfLeftBound; + double mfRightBound; + double mfBottomBound; + double mfTopBound; + + // Near and far clipping planes + double mfNearBound; + double mfFarBound; + + // Aspect ratio of 3D transformation (Y / X) + // default: 1:1 -> 1.0 + // Disable with value 0.0 + double mfRatio; + + // Viewport area in logical coordinates + Rectangle maViewportRectangle; + // Visible area within viewport + Rectangle maVisibleRectangle; + + // Actual coordinates as set by CalcViewport + // of visible viewport area (logical coordinates) + Rectangle maSetBound; + + // Method of keeping defined aspect ratio + // default: Base3DRatioGrow + Base3DRatio meRatio; + + // Flags + unsigned mbPerspective : 1; + unsigned mbWorldToViewValid : 1; + unsigned mbInvTransObjectToEyeValid : 1; + unsigned mbObjectToDeviceValid : 1; + unsigned mbProjectionValid : 1; + +public: + B3dTransformationSet(); + virtual ~B3dTransformationSet(); + + void Reset(); + + // ObjectTrans + const basegfx::B3DHomMatrix& GetObjectTrans() { return maObjectTrans; } + const basegfx::B3DHomMatrix& GetInvObjectTrans() { return maInvObjectTrans; } + + // Orientation + void SetOrientation( + basegfx::B3DPoint aVRP = basegfx::B3DPoint(0.0,0.0,1.0), + basegfx::B3DVector aVPN = basegfx::B3DVector(0.0,0.0,1.0), + basegfx::B3DVector aVUP = basegfx::B3DVector(0.0,1.0,0.0)); + const basegfx::B3DHomMatrix& GetOrientation() { return maOrientation; } + const basegfx::B3DHomMatrix& GetInvOrientation() { return maInvOrientation; } + + // Projection + void SetProjection(const basegfx::B3DHomMatrix& mProject); + const basegfx::B3DHomMatrix& GetProjection(); + + // Texture + const basegfx::B2DHomMatrix& GetTexture() { return maTexture; } + + // aspect ratio accessors and the defined method of keeping defined aspect ratio + double GetRatio() { return mfRatio; } + void SetRatio(double fNew=1.0); + Base3DRatio GetRatioMode() { return meRatio; } + + // Parameters of ViewportTransformation + void SetDeviceRectangle(double fL=-1.0, double fR=1.0, + double fB=-1.0, double fT=1.0, + sal_Bool bBroadCastChange=sal_True); + double GetDeviceRectangleWidth() const { return mfRightBound - mfLeftBound; } + double GetDeviceRectangleHeight() const { return mfTopBound - mfBottomBound; } + double GetFrontClippingPlane() { return mfNearBound; } + double GetBackClippingPlane() { return mfFarBound; } + void SetPerspective(sal_Bool bNew); + sal_Bool GetPerspective() { return mbPerspective; } + void SetViewportRectangle(Rectangle& rRect, Rectangle& rVisible); + void SetViewportRectangle(Rectangle& rRect) { SetViewportRectangle(rRect, rRect); } + const Rectangle& GetViewportRectangle() { return maViewportRectangle; } + void CalcViewport(); + + // Direct accessors for miscellaneous transformations + const basegfx::B3DPoint WorldToEyeCoor(const basegfx::B3DPoint& rVec); + const basegfx::B3DPoint EyeToWorldCoor(const basegfx::B3DPoint& rVec); + + static void Frustum( + basegfx::B3DHomMatrix& rTarget, + double fLeft = -1.0, double fRight = 1.0, + double fBottom = -1.0, double fTop = 1.0, + double fNear = 0.001, double fFar = 1.0); + static void Ortho( + basegfx::B3DHomMatrix& rTarget, + double fLeft = -1.0, double fRight = 1.0, + double fBottom = -1.0, double fTop = 1.0, + double fNear = 0.0, double fFar = 1.0); + static void Orientation( + basegfx::B3DHomMatrix& rTarget, + basegfx::B3DPoint aVRP = basegfx::B3DPoint(0.0,0.0,1.0), + basegfx::B3DVector aVPN = basegfx::B3DVector(0.0,0.0,1.0), + basegfx::B3DVector aVUP = basegfx::B3DVector(0.0,1.0,0.0)); + +protected: + void PostSetObjectTrans(); + void PostSetOrientation(); + void PostSetProjection(); + void PostSetViewport(); + + virtual void DeviceRectangleChange(); +}; + +/** Viewport for B3D + + Uses a simplified model, in which a point is described using a View + Reference Point (VRP). +*/ +class TOOLS_DLLPUBLIC B3dViewport : public B3dTransformationSet +{ +private: + basegfx::B3DPoint aVRP; // View Reference Point + basegfx::B3DVector aVPN; // View Plane Normal + basegfx::B3DVector aVUV; // View Up Vector + +public: + B3dViewport(); + virtual ~B3dViewport(); + + void SetVUV(const basegfx::B3DVector& rNewVUV); + void SetViewportValues( + const basegfx::B3DPoint& rNewVRP, + const basegfx::B3DVector& rNewVPN, + const basegfx::B3DVector& rNewVUV); + + const basegfx::B3DPoint& GetVRP() const { return aVRP; } + const basegfx::B3DVector& GetVPN() const { return aVPN; } + const basegfx::B3DVector& GetVUV() const { return aVUV; } + +protected: + void CalcOrientation(); +}; + +// B3D camera + +class TOOLS_DLLPUBLIC B3dCamera : public B3dViewport +{ +private: + basegfx::B3DPoint aPosition; + basegfx::B3DPoint aCorrectedPosition; + basegfx::B3DVector aLookAt; + double fFocalLength; + double fBankAngle; + + unsigned bUseFocalLength : 1; + +public: + B3dCamera( + const basegfx::B3DPoint& rPos = basegfx::B3DPoint(0.0, 0.0, 1.0), + const basegfx::B3DVector& rLkAt = basegfx::B3DVector(0.0, 0.0, 0.0), + double fFocLen = 35.0, double fBnkAng = 0.0, + sal_Bool bUseFocLen = sal_False); + virtual ~B3dCamera(); + + const basegfx::B3DPoint& GetPosition() const { return aPosition; } + const basegfx::B3DVector& GetLookAt() const { return aLookAt; } + + // Focal length in mm + double GetFocalLength() const { return fFocalLength; } + + double GetBankAngle() const { return fBankAngle; } + + sal_Bool GetUseFocalLength() const { return (sal_Bool)bUseFocalLength; } + +protected: + void CalcNewViewportValues(); + sal_Bool CalcFocalLength(); + + virtual void DeviceRectangleChange(); +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |