| 1 | // Created on: 1999-12-27 |
| 2 | // Created by: Sergey RUIN |
| 3 | // Copyright (c) 1999-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 8 | // This library is free software; you can redistribute it and / or modify it |
| 9 | // under the terms of the GNU Lesser General Public version 2.1 as published |
| 10 | // by the Free Software Foundation, with special exception defined in the file |
| 11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 12 | // distribution for complete text of the license and disclaimer of any warranty. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | #include <TDF_Data.hxx> |
| 18 | #include <TDF_Label.hxx> |
| 19 | #include <TNaming_NamedShape.hxx> |
| 20 | #include <TPrsStd_AISPresentation.hxx> |
| 21 | #include <TPrsStd_AISViewer.hxx> |
| 22 | #include <AIS_InteractiveContext.hxx> |
| 23 | #include <AIS_InteractiveObject.hxx> |
| 24 | #include <V3d_Viewer.hxx> |
| 25 | #include <Quantity_NameOfColor.hxx> |
| 26 | #include <TPrsStd_DriverTable.hxx> |
| 27 | #include <TPrsStd_NamedShapeDriver.hxx> |
| 28 | #include <TPrsStd_PlaneDriver.hxx> |
| 29 | #include <TDataXtd_Plane.hxx> |
| 30 | |
| 31 | // ==================================================================================== |
| 32 | // This sample contains template for typical actions with OCAF visualization attributes |
| 33 | // ==================================================================================== |
| 34 | |
| 35 | #ifdef DEB |
| 36 | static void Sample() |
| 37 | { |
| 38 | // Starting with data framework |
| 39 | Handle(TDF_Data) DF = new TDF_Data(); |
| 40 | TDF_Label aLabel = DF->Root(); |
| 41 | |
| 42 | //----------------------------------- TPrsStd_AISViewer ---------------------------------------- |
| 43 | //============================================================================================== |
| 44 | |
| 45 | // Setting the TPrsStd_AISViewer in the framework |
| 46 | |
| 47 | Handle(V3d_Viewer) aViewer; |
| 48 | |
| 49 | //... Initialization of aViewer |
| 50 | |
| 51 | //Creating the new AIS_InteractiveContext |
| 52 | Handle(AIS_InteractiveContext) ctx = new AIS_InteractiveContext(aViewer); |
| 53 | |
| 54 | //Creating the new TPrsStd_AISViewer attribute initialized with AIS_InteractiveContext |
| 55 | Handle(TPrsStd_AISViewer) aisviewer; |
| 56 | |
| 57 | if( !TPrsStd_AISViewer::Has(aLabel) ) { //Check if there has already been set TPrsStd_AISViewer in the framework |
| 58 | aisviewer = TPrsStd_AISViewer::New(aLabel, ctx); |
| 59 | } |
| 60 | |
| 61 | //Finding TPrsStd_AISViewer attribute in the DataFramework |
| 62 | if( TPrsStd_AISViewer::Find(aLabel, aisviewer) ) { |
| 63 | aisviewer->Update(); //Update the viewer associated with this attribute |
| 64 | } |
| 65 | |
| 66 | //Getting AIS_InteractiveContext from TPrsStd_AISViewer may be done in two ways: |
| 67 | |
| 68 | //1. If we have already gotten TPrsStd_AISViewer attribute (strored in a variable <aisviewer>) |
| 69 | Handle(AIS_InteractiveContext) context1 = aisviewer->GetInteractiveContext(); |
| 70 | |
| 71 | //2. Getting AIS_InteractiveContext directly |
| 72 | Handle(AIS_InteractiveContext) context2; |
| 73 | if( TPrsStd_AISViewer::Find(aLabel, context2) ) { |
| 74 | //do something... |
| 75 | } |
| 76 | |
| 77 | //----------------------------------- TPrsStd_Driver and TPrsStd_DriverTable ------------------- |
| 78 | //============================================================================================== |
| 79 | |
| 80 | // All work for building AIS_InteractiveObject to be presented by TPrsStd_AISPresentation is done |
| 81 | // by drivers which are descendants of deferred class TPrsStd_Driver |
| 82 | |
| 83 | // There is a map of drivers with Standard_GUID as a key. |
| 84 | |
| 85 | // Adding driver to the map of drivers |
| 86 | |
| 87 | Handle(TPrsStd_NamedShapeDriver) NSDriver = new TPrsStd_NamedShapeDriver(); |
| 88 | |
| 89 | Handle(TPrsStd_DriverTable) table = TPrsStd_DriverTable::Get(); |
| 90 | |
| 91 | Standard_GUID guid = TNaming_NamedShape::GetID(); |
| 92 | |
| 93 | table->AddDriver(guid, NSDriver); |
| 94 | |
| 95 | // When the first time called TPrsStd_DriverTable loads standard drivers defined in TPrsStd package |
| 96 | |
| 97 | // Getting driver from the map of drivers |
| 98 | |
| 99 | Standard_GUID driverguid = TNaming_NamedShape::GetID(); |
| 100 | |
| 101 | Handle(TPrsStd_NamedShapeDriver) driver; |
| 102 | |
| 103 | if( table->FindDriver(driverguid, driver) ) |
| 104 | cout << "Driver was found " << endl; |
| 105 | else |
| 106 | cout << "Driver wasn't found" << endl; |
| 107 | |
| 108 | // Driver can be used to build AIS_InteractiveObject for presenting the given label |
| 109 | |
| 110 | Handle(TPrsStd_PlaneDriver) planedriver; |
| 111 | |
| 112 | if( table->FindDriver(TDataXtd_Plane::GetID(), planedriver) ) { |
| 113 | |
| 114 | TDF_Label planelabel; |
| 115 | |
| 116 | // Finding planelabel ... |
| 117 | |
| 118 | Handle(AIS_InteractiveObject) aisobject; |
| 119 | |
| 120 | planedriver->Update(planelabel, aisobject); |
| 121 | |
| 122 | if( !aisobject.IsNull() ) { |
| 123 | |
| 124 | // Do something with aisobject ... |
| 125 | |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | //----------------------------------- TPrsStd_AISPresentation ---------------------------------- |
| 130 | //============================================================================================== |
| 131 | |
| 132 | |
| 133 | TDF_Label ShapeLabel; |
| 134 | |
| 135 | // ... Setting TNaming_NamedShape to <ShapeLabel> |
| 136 | |
| 137 | // Setting the new TPrsStd_AISPresentation to <ShapeLabel> |
| 138 | // It can be done in two different ways: |
| 139 | |
| 140 | Handle(TPrsStd_AISPresentation) Presenation; |
| 141 | // 1. By giving to TPrsStd_AISPresentation attribute Standard_GUID of an attribute to be displayed: |
| 142 | // This GUID will be used to find driver for building AIS_InteractiveObject in the map of drivers |
| 143 | |
| 144 | Presenation = TPrsStd_AISPresentation::Set( ShapeLabel, TNaming_NamedShape::GetID() ); |
| 145 | |
| 146 | // 2. Or by giving the attribute itself to TPrsStd_AISPresentation attribute: |
| 147 | // An ID of attribute will be used to find driver for building AIS_InteractiveObject in the map of drivers |
| 148 | |
| 149 | Handle(TNaming_NamedShape) NS; |
| 150 | if( ShapeLabel.FindAttribute( TNaming_NamedShape::GetID(), NS) ) { |
| 151 | Presenation = TPrsStd_AISPresentation::Set( NS ); |
| 152 | } |
| 153 | |
| 154 | |
| 155 | // Displaying (recomputation of presentation of attribute is done only if presentation is null) |
| 156 | |
| 157 | Handle(TPrsStd_AISPresentation) PRS; |
| 158 | |
| 159 | if( ShapeLabel.FindAttribute(TPrsStd_AISPresentation::GetID(), PRS) ) PRS->Display(); |
| 160 | //After call of the method PRS->Display() the presentation of the attribute is marked as displayed in |
| 161 | //AIS_InteractiveContext but not in viewer, in order to draw the object in viewer last has to be updated |
| 162 | |
| 163 | TPrsStd_AISViewer::Update(ShapeLabel); //Update presentation of the attribute in a viewer's window |
| 164 | |
| 165 | // Erasing |
| 166 | |
| 167 | if( ShapeLabel.FindAttribute(TPrsStd_AISPresentation::GetID(), PRS) ) PRS->Erase(); |
| 168 | // The method Erase() marks presentation of attribute as erased in AIS_InteractiveContext; |
| 169 | // in order to make changes visible in a viewer's window viewer has to be updated |
| 170 | TPrsStd_AISViewer::Update(ShapeLabel); //Update viewer to erase presenation of the attribute in a viewer's window |
| 171 | //Presentation of the attribute is erased from viewer but |
| 172 | // stays in AIS_InteractiveContext |
| 173 | |
| 174 | if( ShapeLabel.FindAttribute(TPrsStd_AISPresentation::GetID(), PRS) ) PRS->Erase(Standard_True); |
| 175 | TPrsStd_AISViewer::Update(ShapeLabel); |
| 176 | //Presentation of the attribute is erased |
| 177 | //from viewer and removed from AIS_InteractiveContext |
| 178 | |
| 179 | Handle(TPrsStd_AISPresentation) P; |
| 180 | if( ShapeLabel.FindAttribute(TPrsStd_AISPresentation::GetID(), P) ) { |
| 181 | |
| 182 | // Updating and displaying presentation of the attribute to be displayed |
| 183 | |
| 184 | P->Display(Standard_True); |
| 185 | TPrsStd_AISViewer::Update(ShapeLabel); //Update presenation of the attribute in a viewer's window |
| 186 | |
| 187 | //Getting Standard_GUID of attribute with which TPrsStd_AISPresentation attribute is associeted |
| 188 | |
| 189 | Standard_GUID guid = P->GetDriverGUID(); |
| 190 | |
| 191 | //Setting a color to the displayd attribute |
| 192 | |
| 193 | P->SetColor(Quantity_NOC_RED); |
| 194 | TPrsStd_AISViewer::Update(ShapeLabel); //Update viewer to make changes visible to user |
| 195 | |
| 196 | //Getting transparency the displayd attribute |
| 197 | |
| 198 | Standard_Real transparency = P->Transparency(); |
| 199 | |
| 200 | //Getting AIS_InteractiveObject built and stored in the AIS_Presentation attribute |
| 201 | |
| 202 | Handle(AIS_InteractiveObject) AISObject = P->GetAIS(); |
| 203 | } |
| 204 | |
| 205 | // ... Attribute is modified |
| 206 | |
| 207 | |
| 208 | //Updating presentation of the attribute in viewer |
| 209 | |
| 210 | if( ShapeLabel.FindAttribute(TPrsStd_AISPresentation::GetID(), PRS) ) |
| 211 | PRS->Update(); //Updates presentation of attribute in AIS_InteractiveContext |
| 212 | TPrsStd_AISViewer::Update(ShapeLabel); //Updates presentation in viewer |
| 213 | |
| 214 | return; |
| 215 | } |
| 216 | |
| 217 | #endif |