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640d5fe219
- class Graphic3d_HatchStyle is added to provide a possibility to set up custom and predefined hatching; - added the ability to set custom hatch patterns through bitmaps; - test case for issue #28107
167 lines
4.5 KiB
C++
167 lines
4.5 KiB
C++
// Created on: 2011-10-25
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <OpenGl_GlCore11.hxx>
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#include <OpenGl_LineAttributes.hxx>
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#include <OpenGl_Context.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(OpenGl_LineAttributes,OpenGl_Resource)
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// =======================================================================
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// function : OpenGl_LineAttributes
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// purpose :
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// =======================================================================
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OpenGl_LineAttributes::OpenGl_LineAttributes()
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: myTypeOfHatch (0),
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myIsEnabled (true)
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{
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//
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}
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// =======================================================================
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// function : ~OpenGl_LineAttributes
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// purpose :
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// =======================================================================
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OpenGl_LineAttributes::~OpenGl_LineAttributes()
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{
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Release (NULL);
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}
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// =======================================================================
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// function : Release
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// purpose :
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// =======================================================================
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void OpenGl_LineAttributes::Release (OpenGl_Context* theGlCtx)
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{
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// Delete surface patterns
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#if !defined(GL_ES_VERSION_2_0)
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if (theGlCtx != NULL && theGlCtx->IsValid())
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{
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for (OpenGl_MapOfHatchStylesAndIds::Iterator anIter (myStyles); anIter.More(); anIter.Next())
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{
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theGlCtx->core11->glDeleteLists ((GLuint)anIter.Value(), 1);
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}
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}
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#else
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(void )theGlCtx;
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#endif
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myStyles.Clear();
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}
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// =======================================================================
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// function : init
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// purpose :
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// =======================================================================
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unsigned int OpenGl_LineAttributes::init (const OpenGl_Context* theGlCtx,
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const Handle(Graphic3d_HatchStyle)& theStyle)
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{
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#if !defined(GL_ES_VERSION_2_0)
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if (theGlCtx->core11 == NULL)
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{
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return 0;
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}
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const unsigned int aListId = glGenLists(1);
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theGlCtx->core11->glNewList ((GLuint)aListId, GL_COMPILE);
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theGlCtx->core11->glPolygonStipple ((const GLubyte*)theStyle->Pattern());
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theGlCtx->core11->glEndList();
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return aListId;
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#else
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(void )theGlCtx;
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(void )theStyle;
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return 0;
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#endif
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}
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// =======================================================================
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// function : SetTypeOfHatch
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// purpose :
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// =======================================================================
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int OpenGl_LineAttributes::SetTypeOfHatch (const OpenGl_Context* theGlCtx,
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const Handle(Graphic3d_HatchStyle)& theStyle)
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{
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// Return if not initialized
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if (theStyle.IsNull())
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{
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return 0;
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}
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const int anOldType = myTypeOfHatch;
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unsigned int aGpuListId = 0;
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if (!myStyles.Find (theStyle, aGpuListId))
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{
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aGpuListId = init (theGlCtx, theStyle);
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myStyles.Bind (theStyle, aGpuListId);
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}
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#if !defined(GL_ES_VERSION_2_0)
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if (theStyle->HatchType() != 0)
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{
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theGlCtx->core11->glCallList ((GLuint)aGpuListId);
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if (myIsEnabled)
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{
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theGlCtx->core11fwd->glEnable (GL_POLYGON_STIPPLE);
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}
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}
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else
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{
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theGlCtx->core11fwd->glDisable (GL_POLYGON_STIPPLE);
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}
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#else
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(void )theGlCtx;
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#endif
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myTypeOfHatch = theStyle->HatchType();
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return anOldType;
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}
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// =======================================================================
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// function : SetEnabled
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// purpose :
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// =======================================================================
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bool OpenGl_LineAttributes::SetEnabled (const OpenGl_Context* theGlCtx,
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const bool theToEnable)
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{
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// Return if not initialized
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if (myStyles.IsEmpty())
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{
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return false;
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}
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const bool anOldIsEnabled = myIsEnabled;
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#if !defined(GL_ES_VERSION_2_0)
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if (theToEnable)
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{
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if (myTypeOfHatch != 0)
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{
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theGlCtx->core11fwd->glEnable (GL_POLYGON_STIPPLE);
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}
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}
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else
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{
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theGlCtx->core11fwd->glDisable (GL_POLYGON_STIPPLE);
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}
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#else
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(void )theGlCtx;
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#endif
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myIsEnabled = theToEnable;
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return anOldIsEnabled;
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}
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