| 1 | // Copyright (c) 1998-1999 Matra Datavision |
| 2 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 3 | // |
| 4 | // This file is part of Open CASCADE Technology software library. |
| 5 | // |
| 6 | // This library is free software; you can redistribute it and/or modify it under |
| 7 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 8 | // by the Free Software Foundation, with special exception defined in the file |
| 9 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 10 | // distribution for complete text of the license and disclaimer of any warranty. |
| 11 | // |
| 12 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 13 | // commercial license or contractual agreement. |
| 14 | |
| 15 | #include <PrsMgr_Presentation.hxx> |
| 16 | |
| 17 | #include <Graphic3d_DataStructureManager.hxx> |
| 18 | #include <Precision.hxx> |
| 19 | #include <Prs3d_Drawer.hxx> |
| 20 | #include <PrsMgr_PresentableObject.hxx> |
| 21 | #include <PrsMgr_PresentationManager.hxx> |
| 22 | #include <Quantity_Color.hxx> |
| 23 | #include <Graphic3d_CView.hxx> |
| 24 | |
| 25 | IMPLEMENT_STANDARD_RTTIEXT(PrsMgr_Presentation, Graphic3d_Structure) |
| 26 | |
| 27 | namespace |
| 28 | { |
| 29 | enum BeforeHighlightState |
| 30 | { |
| 31 | State_Empty, |
| 32 | State_Hidden, |
| 33 | State_Visible |
| 34 | }; |
| 35 | |
| 36 | static BeforeHighlightState StructureState (const Graphic3d_Structure* theStructure) |
| 37 | { |
| 38 | return !theStructure->IsDisplayed() ? |
| 39 | State_Empty : !theStructure->IsVisible() ? |
| 40 | State_Hidden : State_Visible; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | //======================================================================= |
| 45 | //function : PrsMgr_Presentation |
| 46 | //purpose : |
| 47 | //======================================================================= |
| 48 | PrsMgr_Presentation::PrsMgr_Presentation (const Handle(PrsMgr_PresentationManager3d)& thePrsMgr, |
| 49 | const Handle(PrsMgr_PresentableObject)& thePrsObject, |
| 50 | const Standard_Integer theMode) |
| 51 | : Graphic3d_Structure (thePrsMgr->StructureManager()), |
| 52 | myPresentationManager (thePrsMgr), |
| 53 | myPresentableObject (thePrsObject.get()), |
| 54 | myBeforeHighlightState (State_Empty), |
| 55 | myMode (theMode), |
| 56 | myMustBeUpdated (Standard_False) |
| 57 | { |
| 58 | if (thePrsObject->TypeOfPresentation3d() == PrsMgr_TOP_ProjectorDependant) |
| 59 | { |
| 60 | SetVisual (Graphic3d_TOS_COMPUTED); |
| 61 | } |
| 62 | SetOwner (myPresentableObject); |
| 63 | SetMutable (myPresentableObject->IsMutable()); |
| 64 | } |
| 65 | |
| 66 | //======================================================================= |
| 67 | //function : Display |
| 68 | //purpose : |
| 69 | //======================================================================= |
| 70 | void PrsMgr_Presentation::Display() |
| 71 | { |
| 72 | display (Standard_False); |
| 73 | myBeforeHighlightState = State_Visible; |
| 74 | } |
| 75 | |
| 76 | //======================================================================= |
| 77 | //function : display |
| 78 | //purpose : |
| 79 | //======================================================================= |
| 80 | void PrsMgr_Presentation::display (const Standard_Boolean theIsHighlight) |
| 81 | { |
| 82 | if (!base_type::IsDisplayed()) |
| 83 | { |
| 84 | base_type::SetIsForHighlight (theIsHighlight); // optimization - disable frustum culling for this presentation |
| 85 | base_type::Display(); |
| 86 | } |
| 87 | else if (!base_type::IsVisible()) |
| 88 | { |
| 89 | base_type::SetVisible (Standard_True); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | //======================================================================= |
| 94 | //function : Erase |
| 95 | //purpose : |
| 96 | //======================================================================= |
| 97 | void PrsMgr_Presentation::Erase() |
| 98 | { |
| 99 | if (IsDeleted()) |
| 100 | { |
| 101 | return; |
| 102 | } |
| 103 | |
| 104 | // Erase structure from structure manager |
| 105 | erase(); |
| 106 | clear (true); |
| 107 | // Disconnect other structures |
| 108 | DisconnectAll (Graphic3d_TOC_DESCENDANT); |
| 109 | // Clear groups and remove graphic structure |
| 110 | Remove(); |
| 111 | } |
| 112 | |
| 113 | //======================================================================= |
| 114 | //function : Highlight |
| 115 | //purpose : |
| 116 | //======================================================================= |
| 117 | void PrsMgr_Presentation::Highlight (const Handle(Prs3d_Drawer)& theStyle) |
| 118 | { |
| 119 | if (!IsHighlighted()) |
| 120 | { |
| 121 | myBeforeHighlightState = StructureState (this); |
| 122 | } |
| 123 | |
| 124 | display (Standard_True); |
| 125 | base_type::Highlight (theStyle); |
| 126 | } |
| 127 | |
| 128 | //======================================================================= |
| 129 | //function : Unhighlight |
| 130 | //purpose : |
| 131 | //======================================================================= |
| 132 | void PrsMgr_Presentation::Unhighlight() |
| 133 | { |
| 134 | base_type::UnHighlight(); |
| 135 | switch (myBeforeHighlightState) |
| 136 | { |
| 137 | case State_Visible: |
| 138 | return; |
| 139 | case State_Hidden: |
| 140 | base_type::SetVisible (Standard_False); |
| 141 | break; |
| 142 | case State_Empty: |
| 143 | base_type::erase(); |
| 144 | break; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | //======================================================================= |
| 149 | //function : Clear |
| 150 | //purpose : |
| 151 | //======================================================================= |
| 152 | void PrsMgr_Presentation::Clear (const Standard_Boolean theWithDestruction) |
| 153 | { |
| 154 | // This modification remove the contain of the structure: |
| 155 | // Consequence: |
| 156 | // 1. The memory zone of the group is reused |
| 157 | // 2. The speed for animation is constant |
| 158 | //myPresentableObject = NULL; |
| 159 | SetUpdateStatus (Standard_True); |
| 160 | if (IsDeleted()) |
| 161 | { |
| 162 | return; |
| 163 | } |
| 164 | |
| 165 | clear (theWithDestruction); |
| 166 | DisconnectAll (Graphic3d_TOC_DESCENDANT); |
| 167 | } |
| 168 | |
| 169 | //======================================================================= |
| 170 | //function : Compute |
| 171 | //purpose : |
| 172 | //======================================================================= |
| 173 | void PrsMgr_Presentation::Compute() |
| 174 | { |
| 175 | Standard_Integer aDispMode = 0; |
| 176 | for (PrsMgr_Presentations::Iterator aPrsIter (myPresentableObject->myPresentations); aPrsIter.More(); aPrsIter.Next()) |
| 177 | { |
| 178 | const Handle(PrsMgr_Presentation)& aModedPresentation = aPrsIter.Value(); |
| 179 | if (aModedPresentation == this) |
| 180 | { |
| 181 | aDispMode = aModedPresentation->Mode(); |
| 182 | break; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | myPresentableObject->Compute (myPresentationManager, this, aDispMode); |
| 187 | } |
| 188 | |
| 189 | //======================================================================= |
| 190 | //function : Compute |
| 191 | //purpose : |
| 192 | //======================================================================= |
| 193 | void PrsMgr_Presentation::computeHLR (const Handle(Graphic3d_Camera)& theProjector, |
| 194 | Handle(Graphic3d_Structure)& theStructToFill) |
| 195 | { |
| 196 | if (theStructToFill.IsNull()) |
| 197 | { |
| 198 | theStructToFill = new Prs3d_Presentation (myPresentationManager->StructureManager()); |
| 199 | } |
| 200 | Handle(Graphic3d_Structure) aPrs = theStructToFill; |
| 201 | theStructToFill->Clear(); |
| 202 | myPresentableObject->computeHLR (theProjector, Transformation(), aPrs); |
| 203 | } |
| 204 | |
| 205 | //======================================================================= |
| 206 | //function : ~PrsMgr_Presentation |
| 207 | //purpose : |
| 208 | //======================================================================= |
| 209 | PrsMgr_Presentation::~PrsMgr_Presentation() |
| 210 | { |
| 211 | Erase(); |
| 212 | } |
| 213 | |
| 214 | // ======================================================================= |
| 215 | // function : DumpJson |
| 216 | // purpose : |
| 217 | // ======================================================================= |
| 218 | void PrsMgr_Presentation::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const |
| 219 | { |
| 220 | OCCT_DUMP_TRANSIENT_CLASS_BEGIN (theOStream) |
| 221 | OCCT_DUMP_BASE_CLASS (theOStream, theDepth, Graphic3d_Structure) |
| 222 | |
| 223 | OCCT_DUMP_FIELD_VALUE_POINTER (theOStream, myPresentableObject) |
| 224 | |
| 225 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myBeforeHighlightState) |
| 226 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMode) |
| 227 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMustBeUpdated) |
| 228 | } |