/usr/include/oce/OpenGl_BackgroundArray.hxx is in liboce-visualization-dev 0.18.2-2build1.
This file is owned by root:root, with mode 0o644.
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// Created by: Anastasia BORISOVA
// Copyright (c) 2015 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef OpenGl_BackgroundArray_Header
#define OpenGl_BackgroundArray_Header
#include <Aspect_GradientFillMethod.hxx>
#include <Aspect_FillMethod.hxx>
#include <Graphic3d_TypeOfBackground.hxx>
#include <OpenGl_AspectFace.hxx>
#include <OpenGl_PrimitiveArray.hxx>
#include <OpenGl_Vec.hxx>
#include <OpenGl_Workspace.hxx>
//! Tool class for generating reusable data for
//! gradient or texture background rendering.
class OpenGl_BackgroundArray : public OpenGl_PrimitiveArray
{
public:
//! Main constructor.
Standard_EXPORT OpenGl_BackgroundArray (const Graphic3d_TypeOfBackground theType);
//! Check if background parameters are set properly
Standard_EXPORT bool IsDefined() const;
//! Fill attributes arrays for background array according to its type:
//! - for gradient background its attributes consist of colors and gradient coordinates
//! - for texture one its attributes consist of position and texure coordinates.
Standard_EXPORT Standard_Boolean Init (const Handle(OpenGl_Workspace)& theWorkspace);
//! Sets background texture parameters
Standard_EXPORT void SetTextureParameters (const Aspect_FillMethod theFillMethod);
//! Sets texture fill method
Standard_EXPORT void SetTextureFillMethod (const Aspect_FillMethod theFillMethod);
//! Gets background texture fill method
Aspect_FillMethod TextureFillMethod() const { return myFillMethod; }
//! Gets background gradient fill method
Aspect_GradientFillMethod GradientFillMethod() const { return myGradientParams.type; }
//! Sets type of gradient fill method
Standard_EXPORT void SetGradientFillMethod (const Aspect_GradientFillMethod theType);
//! Sets background gradient parameters
Standard_EXPORT void SetGradientParameters (const Quantity_Color& theColor1,
const Quantity_Color& theColor2,
const Aspect_GradientFillMethod theType);
//! Shows if array parameters were changed
Standard_Boolean IsDataChanged() const { return myToUpdate; }
//! Shows if view sizes were changed
//! (texture coordinates is no be changed)
Standard_Boolean IsViewSizeChanged (const Handle(OpenGl_Workspace)& theWorkspace) const
{
return myType == Graphic3d_TOB_TEXTURE
&& (myViewWidth != theWorkspace->Width()
|| myViewHeight != theWorkspace->Height());
}
protected: //! @name Internal structure for storing gradient parameters
struct OpenGl_GradientParameters
{
OpenGl_Vec4 color1;
OpenGl_Vec4 color2;
Aspect_GradientFillMethod type;
};
protected:
//! Initializes gradient arrays.
Standard_EXPORT Standard_Boolean createGradientArray();
//! Initializes texture arrays.
//! @param theWorkspace OpenGl workspace that stores texture in the current enabled face aspect.
Standard_EXPORT Standard_Boolean createTextureArray (const Handle(OpenGl_Workspace)& theWorkspace);
//! Marks array parameters as changed,
//! on next rendering stage array data is to be updated.
Standard_EXPORT void invalidateData();
protected:
Standard_Boolean myToUpdate; //!< Shows if array parameters were changed and data (myAttribs storage) is to be updated
Graphic3d_TypeOfBackground myType; //!< Type of background: texture or gradient.
Standard_Integer myViewWidth; //!< view width used for array initialization
Standard_Integer myViewHeight; //!< view height used for array initialization
Aspect_FillMethod myFillMethod; //!< Texture parameters
OpenGl_GradientParameters myGradientParams; //!< Gradient parameters
};
#endif // OpenGl_BackgroundArray_Header
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