147 lines
4.9 KiB
C++
147 lines
4.9 KiB
C++
/***************************************************************************
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* Copyright (c) 2009 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef MESHGUI_SOFCINDEXEDFACESET_H
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#define MESHGUI_SOFCINDEXEDFACESET_H
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#include <Inventor/engines/SoSubEngine.h>
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#include <Inventor/fields/SoMFColor.h>
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#include <Inventor/fields/SoSFBool.h>
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#include <Inventor/nodes/SoIndexedFaceSet.h>
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#ifndef MESH_GLOBAL_H
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#include <Mod/Mesh/MeshGlobal.h>
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#endif
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class SoGLCoordinateElement;
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class SoTextureCoordinateBundle;
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using GLuint = unsigned int;
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using GLint = int;
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using GLfloat = float;
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namespace MeshGui {
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class MeshRenderer
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{
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public:
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MeshRenderer();
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~MeshRenderer();
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void generateGLArrays(SoGLRenderAction*, SoMaterialBindingElement::Binding binding,
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std::vector<float>& vertex, std::vector<int32_t>& index);
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void renderFacesGLArray(SoGLRenderAction *action);
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void renderCoordsGLArray(SoGLRenderAction *action);
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bool canRenderGLArray(SoGLRenderAction *action) const;
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bool matchMaterial(SoState*) const;
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void update();
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bool needUpdate(SoGLRenderAction *action);
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static bool shouldRenderDirectly(bool);
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private:
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class Private;
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Private* p;
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};
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/**
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* class SoFCMaterialEngine
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* \brief The SoFCMaterialEngine class is used to notify an
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* SoFCIndexedFaceSet node about material changes.
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*
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* @author Werner Mayer
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*/
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class MeshGuiExport SoFCMaterialEngine : public SoEngine
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{
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SO_ENGINE_HEADER(SoFCMaterialEngine);
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public:
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SoFCMaterialEngine();
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static void initClass();
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SoMFColor diffuseColor;
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SoEngineOutput trigger;
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private:
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~SoFCMaterialEngine() override;
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void evaluate() override;
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void inputChanged(SoField *) override;
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};
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/**
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* class SoFCIndexedFaceSet
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* \brief The SoFCIndexedFaceSet class is designed to optimize redrawing a mesh
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* during user interaction.
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*
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* @author Werner Mayer
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*/
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class MeshGuiExport SoFCIndexedFaceSet : public SoIndexedFaceSet {
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using inherited = SoIndexedFaceSet;
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SO_NODE_HEADER(SoFCIndexedFaceSet);
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public:
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static void initClass();
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SoFCIndexedFaceSet();
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SoSFBool updateGLArray;
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unsigned int renderTriangleLimit;
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void invalidate();
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protected:
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// Force using the reference count mechanism.
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~SoFCIndexedFaceSet() override = default;
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void GLRender(SoGLRenderAction *action) override;
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void drawFaces(SoGLRenderAction *action);
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void drawCoords(const SoGLCoordinateElement * const vertexlist,
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const int32_t *vertexindices,
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int numindices,
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const SbVec3f *normals,
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const int32_t *normalindices,
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SoMaterialBundle *materials,
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const int32_t *matindices,
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const int32_t binding,
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const SoTextureCoordinateBundle * const texcoords,
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const int32_t *texindices);
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void doAction(SoAction * action) override;
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private:
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void startSelection(SoAction * action);
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void stopSelection(SoAction * action);
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void renderSelectionGeometry(const SbVec3f *);
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void startVisibility(SoAction * action);
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void stopVisibility(SoAction * action);
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void renderVisibleFaces(const SbVec3f *);
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void generateGLArrays(SoGLRenderAction * action);
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private:
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MeshRenderer render;
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GLuint *selectBuf{nullptr};
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};
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} // namespace MeshGui
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#endif // MESHGUI_SOFCINDEXEDFACESET_H
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