src/SketcherPrs/SketcherPrs_SymbolPrs.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_SymbolPrs.cpp
   4 // Created:     12 March 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_SymbolPrs.h"
   8 #include "SketcherPrs_Tools.h"
   9 #include "SketcherPrs_PositionMgr.h"
  10
  11 #include <GeomAPI_Edge.h>
  12
  13 #include <Graphic3d_ArrayOfSegments.hxx>
  14 #include <Graphic3d_BndBox4f.hxx>
  15
  16 #include <SelectMgr_Selection.hxx>
  17 #include <SelectMgr_SelectionManager.hxx>
  18 #include <Select3D_SensitivePoint.hxx>
  19 #include <TopLoc_Location.hxx>
  20 #include <AIS_InteractiveContext.hxx>
  21 #include <V3d_Viewer.hxx>
  22 #include <Prs3d_Root.hxx>
  23
  24 #include <OpenGl_Element.hxx>
  25 #include <OpenGl_GraphicDriver.hxx>
  26 #include <OpenGl_Context.hxx>
  27 #include <OpenGl_View.hxx>
  28 #include <OpenGl_PointSprite.hxx>
  29 #include <OpenGl_VertexBuffer.hxx>
  30 #include <OpenGl_ShaderManager.hxx>
  31 #include <OpenGl_VertexBufferCompat.hxx>
  32 #include <OpenGl_GraphicDriver.hxx>
  33
  34 #ifdef WIN32
  35 # define FSEP "\\"
  36 #else
  37 # define FSEP "/"
  38 #endif
  39
  40 /// Step between icons
  41 static const double MyDist = 0.02;
  42
  43 /// Function to convert opengl data type
  44 GLenum toGlDataType (const Graphic3d_TypeOfData theType, GLint& theNbComp)
  45 {
  46   switch (theType) {
  47     case Graphic3d_TOD_USHORT:
  48       theNbComp = 1;
  49       return GL_UNSIGNED_SHORT;
  50     case Graphic3d_TOD_UINT:
  51       theNbComp = 1;
  52       return GL_UNSIGNED_INT;
  53     case Graphic3d_TOD_VEC2:
  54       theNbComp = 2;
  55       return GL_FLOAT;
  56     case Graphic3d_TOD_VEC3:
  57       theNbComp = 3;
  58       return GL_FLOAT;
  59     case Graphic3d_TOD_VEC4:
  60       theNbComp = 4;
  61       return GL_FLOAT;
  62     case Graphic3d_TOD_VEC4UB:
  63       theNbComp = 4;
  64       return GL_UNSIGNED_BYTE;
  65   }
  66   theNbComp = 0;
  67   return GL_NONE;
  68 }
  69
  70
  71 //*******************************************************************
  72 //! Auxiliary class for Vertex buffer with interleaved attributes.
  73 class SketcherPrs_VertexBuffer : public OpenGl_VertexBuffer
  74 {
  75
  76 public:
  77
  78   //! Create uninitialized VBO..
  79   SketcherPrs_VertexBuffer (const Graphic3d_Attribute* theAttribs,
  80                         const Standard_Integer     theStride)
  81   : Stride (theStride), NbAttributes(1)
  82   {
  83
  84     memcpy (Attribs, theAttribs, sizeof(Graphic3d_Attribute) * NbAttributes);
  85   }
  86
  87   //! Create uninitialized VBO.
  88   SketcherPrs_VertexBuffer (const Graphic3d_Buffer& theAttribs)
  89   : Stride (theAttribs.Stride), NbAttributes(1)
  90   {
  91     memcpy (Attribs, theAttribs.AttributesArray(), sizeof(Graphic3d_Attribute) * NbAttributes);
  92   }
  93
  94   virtual bool HasColorAttribute() const
  95   {
  96     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
  97       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
  98       if (anAttrib.Id == Graphic3d_TOA_COLOR) {
  99         return true;
 100       }
 101     }
 102     return false;
 103   }
 104
 105   virtual bool HasNormalAttribute() const
 106   {
 107     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
 108       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 109       if (anAttrib.Id == Graphic3d_TOA_NORM) {
 110         return true;
 111       }
 112     }
 113     return false;
 114   }
 115
 116   virtual void BindPositionAttribute (const Handle(OpenGl_Context)& theGlCtx) const
 117   {
 118     if (!OpenGl_VertexBuffer::IsValid()) {
 119       return;
 120     }
 121
 122     OpenGl_VertexBuffer::Bind (theGlCtx);
 123     GLint aNbComp;
 124     const GLubyte* anOffset = OpenGl_VertexBuffer::myOffset;
 125     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
 126       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 127       const GLenum   aDataType = toGlDataType (anAttrib.DataType, aNbComp);
 128       if (aDataType == GL_NONE) {
 129         continue;
 130       } else if (anAttrib.Id == Graphic3d_TOA_POS) {
 131         OpenGl_VertexBuffer::bindAttribute (theGlCtx, Graphic3d_TOA_POS, aNbComp, aDataType, Stride, anOffset);
 132         break;
 133       }
 134
 135       anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
 136     }
 137   }
 138
 139   virtual void BindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
 140   {
 141     if (!OpenGl_VertexBuffer::IsValid())
 142       return;
 143
 144     OpenGl_VertexBuffer::Bind (theGlCtx);
 145     GLint aNbComp;
 146     const GLubyte* anOffset = OpenGl_VertexBuffer::myOffset;
 147     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
 148     {
 149       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 150       const GLenum   aDataType = toGlDataType (anAttrib.DataType, aNbComp);
 151       if (aDataType == GL_NONE)
 152         continue;
 153
 154       OpenGl_VertexBuffer::bindAttribute (theGlCtx, anAttrib.Id, aNbComp, aDataType, Stride, anOffset);
 155       anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
 156     }
 157   }
 158
 159   virtual void UnbindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
 160   {
 161     if (!OpenGl_VertexBuffer::IsValid())
 162       return;
 163     OpenGl_VertexBuffer::Unbind (theGlCtx);
 164
 165     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
 166       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 167       OpenGl_VertexBuffer::unbindAttribute (theGlCtx, anAttrib.Id);
 168     }
 169   }
 170
 171 public:
 172
 173   Graphic3d_Attribute Attribs[1];
 174   Standard_Integer    Stride;
 175   Standard_Integer NbAttributes;
 176 };
 177
 178 //**************************************************************
 179 //! Redefinition of OpenGl_Element
 180 class SketcherPrs_Element: public OpenGl_Element
 181 {
 182 public:
 183   SketcherPrs_Element(const Handle(SketcherPrs_SymbolPrs)& theObj) :
 184   OpenGl_Element(), myObj(theObj) {}
 185
 186   virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const
 187   {
 188     if (!myObj.IsNull())
 189       myObj->Render(theWorkspace);
 190   }
 191
 192   virtual void Release (OpenGl_Context* theContext)
 193   {
 194     if (!myObj.IsNull())
 195       myObj->Release(theContext);
 196   }
 197
 198 private:
 199   Handle(SketcherPrs_SymbolPrs) myObj;
 200 };
 201
 202
 203 //**************************************************************
 204 //! Definition of call back
 205 OpenGl_Element* SymbolPrsCallBack(const CALL_DEF_USERDRAW * theUserDraw)
 206 {
 207   Handle(SketcherPrs_SymbolPrs) anIObj = (SketcherPrs_SymbolPrs*)theUserDraw->Data;
 208   if (anIObj.IsNull()) {
 209     std::cout << "VUserDrawCallback error: null object passed, the custom scene element will not be rendered" << std::endl;
 210   }
 211   return new SketcherPrs_Element(anIObj);
 212 }
 213
 214
 215 //*****************************************************************************
 216 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_SymbolPrs, AIS_InteractiveObject);
 217 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_SymbolPrs, AIS_InteractiveObject);
 218
 219
 220 std::map<const char*, Handle(Image_AlienPixMap)> SketcherPrs_SymbolPrs::myIconsMap;
 221
 222
 223 SketcherPrs_SymbolPrs::SketcherPrs_SymbolPrs(ModelAPI_Feature* theConstraint,
 224                                              const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 225  : AIS_InteractiveObject(), myConstraint(theConstraint), myPlane(thePlane)
 226 {
 227   SetAutoHilight(Standard_False);
 228 }
 229
 230 SketcherPrs_SymbolPrs::~SketcherPrs_SymbolPrs()
 231 {
 232   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
 233   aMgr->deleteConstraint(this);
 234 }
 235
 236
 237
 238 Handle(Image_AlienPixMap) SketcherPrs_SymbolPrs::icon()
 239 {
 240   if (myIconsMap.count(iconName()) == 1) {
 241     return myIconsMap[iconName()];
 242   }
 243   TCollection_AsciiString aFile(getenv("NewGeomResources"));
 244   aFile += FSEP;
 245   aFile += iconName();
 246   Handle(Image_AlienPixMap) aPixMap = new Image_AlienPixMap();
 247   if (aPixMap->Load(aFile)) {
 248     myIconsMap[iconName()] = aPixMap;
 249     return aPixMap;
 250   }
 251   return Handle(Image_AlienPixMap)();
 252 }
 253
 254 void SketcherPrs_SymbolPrs::ClearSelected()
 255 {
 256   Handle( Prs3d_Presentation ) aSelectionPrs = GetSelectPresentation( NULL );
 257   if( !aSelectionPrs.IsNull() ) {
 258     aSelectionPrs->Clear();
 259   }
 260 }
 261
 262 void SketcherPrs_SymbolPrs::prepareAspect()
 263 {
 264   if (myAspect.IsNull()) {
 265     myAspect = new Graphic3d_AspectMarker3d(icon());
 266   }
 267 }
 268
 269 void SketcherPrs_SymbolPrs::addLine(const Handle(Graphic3d_Group)& theGroup, std::string theAttrName) const
 270 {
 271   ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, theAttrName);
 272   std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aObj);
 273   if (aLine.get() == NULL)
 274     return;
 275   std::shared_ptr<GeomAPI_Edge> aEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLine));
 276
 277   std::shared_ptr<GeomAPI_Pnt> aPnt1 = aEdge->firstPoint();
 278   std::shared_ptr<GeomAPI_Pnt> aPnt2 = aEdge->lastPoint();
 279
 280   Handle(Graphic3d_ArrayOfSegments) aLines = new Graphic3d_ArrayOfSegments(2, 1);
 281   aLines->AddVertex(aPnt1->impl<gp_Pnt>());
 282   aLines->AddVertex(aPnt2->impl<gp_Pnt>());
 283   theGroup->AddPrimitiveArray(aLines);
 284 }
 285
 286 void SketcherPrs_SymbolPrs::HilightSelected(const Handle(PrsMgr_PresentationManager3d)& thePM,
 287                                            const SelectMgr_SequenceOfOwner& theOwners)
 288 {
 289
 290   Handle( Prs3d_Presentation ) aSelectionPrs = GetSelectPresentation( thePM );
 291   aSelectionPrs->Clear();
 292   drawLines(aSelectionPrs, Quantity_NOC_WHITE);
 293
 294   aSelectionPrs->SetDisplayPriority(9);
 295   aSelectionPrs->Display();
 296   thePM->Highlight(this);
 297 }
 298
 299 void SketcherPrs_SymbolPrs::HilightOwnerWithColor(const Handle(PrsMgr_PresentationManager3d)& thePM,
 300                                                  const Quantity_NameOfColor theColor, const Handle(SelectMgr_EntityOwner)& theOwner)
 301 {
 302   thePM->Color(this, theColor);
 303
 304   Handle( Prs3d_Presentation ) aHilightPrs = GetHilightPresentation( thePM );
 305   aHilightPrs->Clear();
 306   drawLines(aHilightPrs, theColor);
 307
 308   if (thePM->IsImmediateModeOn())
 309     thePM->AddToImmediateList(aHilightPrs);
 310 }
 311
 312 void SketcherPrs_SymbolPrs::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
 313                                    const Handle(Prs3d_Presentation)& thePresentation,
 314                                    const Standard_Integer theMode)
 315 {
 316   prepareAspect();
 317
 318   Handle(AIS_InteractiveContext) aCtx = GetContext();
 319   Handle(OpenGl_GraphicDriver) aDriver = Handle(OpenGl_GraphicDriver)::DownCast(aCtx->CurrentViewer()->Driver());
 320   if (!aDriver.IsNull()) {
 321     // register the custom element factory function
 322     aDriver->UserDrawCallback() = SymbolPrsCallBack;
 323   }
 324
 325   if (!updatePoints(20))
 326     return;
 327
 328   int aNbVertex = myPntArray->VertexNumber();
 329   if (myOwner.IsNull()) {
 330     myOwner = new SelectMgr_EntityOwner(this);
 331     for (int i = 1; i <= aNbVertex; i++) {
 332       Handle(SketcherPrs_SensitivePoint) aSP = new SketcherPrs_SensitivePoint(myOwner, myPntArray, i);
 333       mySPoints.Append(aSP);
 334     }
 335   }
 336
 337   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePresentation);
 338   aGroup->SetPrimitivesAspect(myAspect);
 339
 340   Graphic3d_BndBox4f& aBnd = aGroup->ChangeBoundingBox();
 341   gp_Pnt aVert;
 342   aBnd.Clear();
 343   for (int i = 1; i <= myPntArray->ItemNumber(); i++) {
 344     aVert = myPntArray->Vertice(i);
 345     aBnd.Add (Graphic3d_Vec4((float)aVert.X(), (float)aVert.Y(), (float)aVert.Z(), 1.0f));
 346   }
 347
 348   aGroup->UserDraw(this, true);
 349   //aGroup->AddPrimitiveArray(myPntArray);
 350 }
 351
 352
 353
 354 void SketcherPrs_SymbolPrs::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 355                                             const Standard_Integer aMode)
 356 {
 357   ClearSelected();
 358   if ((aMode == 0) || (aMode == SketcherPrs_Tools::Sel_Constraint)) {
 359     for (int i = 1; i <= mySPoints.Length(); i++)
 360       aSelection->Add(mySPoints.Value(i));
 361   }
 362 }
 363
 364
 365 void SketcherPrs_SymbolPrs::Render(const Handle(OpenGl_Workspace)& theWorkspace) const
 366 {
 367   const OpenGl_AspectMarker* anAspectMarker = theWorkspace->AspectMarker(Standard_True);
 368   const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
 369   Handle(OpenGl_View) aView = theWorkspace->ActiveView();
 370
 371   double aScale = aView->Camera()->Scale();
 372   if (!updatePoints(MyDist * aScale))
 373     return;
 374
 375   Handle(Graphic3d_Buffer) aAttribs = myPntArray->Attributes();
 376
 377   if (myVboAttribs.IsNull()) {
 378     myVboAttribs = new SketcherPrs_VertexBuffer(*aAttribs);
 379   }
 380
 381   if (!myVboAttribs->init(aCtx, 0, aAttribs->NbElements, aAttribs->Data(), GL_NONE, aAttribs->Stride)) {
 382     myVboAttribs->Release (aCtx.operator->());
 383     myVboAttribs.Nullify();
 384     return;
 385   }
 386
 387   Handle(OpenGl_Texture) aTextureBack = theWorkspace->DisableTexture();
 388
 389   const Handle(OpenGl_PointSprite)& aSpriteNorm = anAspectMarker->SpriteRes(aCtx);
 390
 391   if (!aSpriteNorm.IsNull() && !aSpriteNorm->IsDisplayList()) {
 392     const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0;
 393     const Handle(OpenGl_PointSprite)& aSprite = (toHilight && anAspectMarker->SpriteHighlightRes(aCtx)->IsValid())
 394                                               ? anAspectMarker->SpriteHighlightRes(aCtx)
 395                                               : aSpriteNorm;
 396     theWorkspace->EnableTexture (aSprite);
 397     aCtx->ShaderManager()->BindProgram(anAspectMarker, aSprite, Standard_False, Standard_False, anAspectMarker->ShaderProgramRes(aCtx));
 398     const TEL_COLOUR* aLineColor  =  &anAspectMarker->Color();
 399     if (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT)
 400       aLineColor = theWorkspace->HighlightColor;
 401
 402     aCtx->SetColor4fv(*(const OpenGl_Vec4* )(aLineColor->rgb));
 403
 404
 405     myVboAttribs->BindAllAttributes(aCtx);
 406     // Textured markers will be drawn with the point sprites
 407     aCtx->SetPointSize (anAspectMarker->MarkerSize());
 408     aCtx->core11fwd->glEnable (GL_ALPHA_TEST);
 409     aCtx->core11fwd->glAlphaFunc (GL_GEQUAL, 0.1f);
 410
 411     aCtx->core11fwd->glEnable (GL_BLEND);
 412     aCtx->core11fwd->glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 413
 414     aCtx->core11fwd->glDrawArrays (0, 0, myVboAttribs->GetElemsNb());
 415
 416     aCtx->core11fwd->glDisable (GL_BLEND);
 417     aCtx->core11fwd->glDisable (GL_ALPHA_TEST);
 418     aCtx->SetPointSize (1.0f);
 419   }
 420   theWorkspace->EnableTexture (aTextureBack);
 421   aCtx->BindProgram (NULL);
 422
 423   // Update selection position only if there is no selected object
 424   // because it can corrupt selection of other objects
 425   if ((GetContext()->NbCurrents() == 0) && (GetContext()->NbSelected() == 0))
 426     GetContext()->RecomputeSelectionOnly(this);
 427 }
 428
 429
 430 void SketcherPrs_SymbolPrs::Release (OpenGl_Context* theContext)
 431 {
 432   if (!myVboAttribs.IsNull()) {
 433     if (theContext) {
 434       theContext->DelayedRelease (myVboAttribs);
 435     }
 436     myVboAttribs.Nullify();
 437   }
 438 }
 439