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1 | // Created on: 2012-02-02 |
2 | // Created by: Anton POLETAEV |
3 | // Copyright (c) -1999 Matra Datavision |
4 | // Copyright (c) 2012-2012 OPEN CASCADE SAS |
5 | // |
6 | // The content of this file is subject to the Open CASCADE Technology Public |
7 | // License Version 6.5 (the "License"). You may not use the content of this file |
8 | // except in compliance with the License. Please obtain a copy of the License |
9 | // at http://www.opencascade.org and read it completely before using this file. |
10 | // |
11 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
12 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
13 | // |
14 | // The Original Code and all software distributed under the License is |
15 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
16 | // Initial Developer hereby disclaims all such warranties, including without |
17 | // limitation, any warranties of merchantability, fitness for a particular |
18 | // purpose or non-infringement. Please see the License for the specific terms |
19 | // and conditions governing the rights and limitations under the License. |
20 | |
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21 | |
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22 | #include <OpenGl_GlCore11.hxx> |
23 | |
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24 | #include <OpenGl_LayerList.hxx> |
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25 | #include <OpenGl_Structure.hxx> |
26 | |
27 | #include <InterfaceGraphic_Graphic3d.hxx> |
28 | #include <InterfaceGraphic.hxx> |
29 | |
30 | //======================================================================= |
31 | //function : OpenGl_LayerList |
32 | //purpose : Constructor |
33 | //======================================================================= |
34 | |
35 | OpenGl_LayerList::OpenGl_LayerList (const Standard_Integer theNbPriorities) |
36 | : myNbPriorities (theNbPriorities), |
37 | myNbStructures (0) |
38 | { |
39 | // insert default priority layer |
40 | myLayers.Append (OpenGl_PriorityList (myNbPriorities)); |
41 | myLayerIds.Bind (0, myLayers.Length()); |
42 | } |
43 | |
44 | //======================================================================= |
45 | //function : ~OpenGl_LayerList |
46 | //purpose : Destructor |
47 | //======================================================================= |
48 | |
49 | OpenGl_LayerList::~OpenGl_LayerList () |
50 | { |
51 | } |
52 | |
53 | //======================================================================= |
54 | //function : defaultLayer |
55 | //purpose : |
56 | //======================================================================= |
57 | |
58 | OpenGl_PriorityList& OpenGl_LayerList::defaultLayer() |
59 | { |
60 | return myLayers.ChangeValue (1); |
61 | } |
62 | |
63 | //======================================================================= |
64 | //function : NbPriorities |
65 | //purpose : Method returns the number of available priorities |
66 | //======================================================================= |
67 | |
68 | Standard_Integer OpenGl_LayerList::NbPriorities () const |
69 | { |
70 | return myNbPriorities; |
71 | } |
72 | |
73 | //======================================================================= |
74 | //function : NbStructures |
75 | //purpose : Method returns the number of available structures |
76 | //======================================================================= |
77 | |
78 | Standard_Integer OpenGl_LayerList::NbStructures () const |
79 | { |
80 | return myNbStructures; |
81 | } |
82 | |
83 | //======================================================================= |
84 | //function : AddLayer |
85 | //purpose : |
86 | //======================================================================= |
87 | |
88 | void OpenGl_LayerList::AddLayer (const Standard_Integer theLayerId) |
89 | { |
90 | if (HasLayer (theLayerId)) |
91 | return; |
92 | |
93 | // add the new layer |
94 | myLayers.Append (OpenGl_PriorityList (myNbPriorities)); |
95 | myLayerIds.Bind (theLayerId, myLayers.Length()); |
96 | } |
97 | |
98 | //======================================================================= |
99 | //function : HasLayer |
100 | //purpose : |
101 | //======================================================================= |
102 | |
103 | Standard_Boolean OpenGl_LayerList::HasLayer |
104 | (const Standard_Integer theLayerId) const |
105 | { |
106 | return myLayerIds.IsBound (theLayerId); |
107 | } |
108 | |
109 | //======================================================================= |
110 | //function : RemoveLayer |
111 | //purpose : |
112 | //======================================================================= |
113 | |
114 | void OpenGl_LayerList::RemoveLayer (const Standard_Integer theLayerId) |
115 | { |
116 | if (!HasLayer (theLayerId) || theLayerId == 0) |
117 | return; |
118 | |
119 | Standard_Integer aRemovePos = myLayerIds.Find (theLayerId); |
120 | |
121 | // move all displayed structures to first layer |
122 | const OpenGl_PriorityList& aList = myLayers.Value (aRemovePos); |
123 | defaultLayer ().Append (aList); |
124 | |
125 | // remove layer |
126 | myLayers.Remove (aRemovePos); |
127 | myLayerIds.UnBind (theLayerId); |
128 | |
129 | // updated sequence indexes in map |
130 | OpenGl_LayerSeqIds::Iterator aMapIt (myLayerIds); |
131 | for ( ; aMapIt.More (); aMapIt.Next ()) |
132 | { |
133 | Standard_Integer& aSeqIdx = aMapIt.ChangeValue (); |
134 | if (aSeqIdx > aRemovePos) |
135 | aSeqIdx--; |
136 | } |
137 | } |
138 | |
139 | //======================================================================= |
140 | //function : AddStructure |
141 | //purpose : |
142 | //======================================================================= |
143 | |
144 | void OpenGl_LayerList::AddStructure (const OpenGl_Structure *theStructure, |
145 | const Standard_Integer theLayerId, |
146 | const Standard_Integer thePriority) |
147 | { |
148 | // add structure to associated layer, |
149 | // if layer doesn't exists, display structure in default layer |
150 | OpenGl_PriorityList& aList = !HasLayer (theLayerId) ? defaultLayer () : |
151 | myLayers.ChangeValue (myLayerIds.Find (theLayerId)); |
152 | |
153 | aList.Add (theStructure, thePriority); |
154 | myNbStructures++; |
155 | } |
156 | |
157 | //======================================================================= |
158 | //function : RemoveStructure |
159 | //purpose : |
160 | //======================================================================= |
161 | |
162 | void OpenGl_LayerList::RemoveStructure (const OpenGl_Structure *theStructure, |
163 | const Standard_Integer theLayerId) |
164 | { |
165 | Standard_Integer aSeqPos = !HasLayer (theLayerId) ? |
166 | 1 : myLayerIds.Find (theLayerId); |
167 | |
168 | OpenGl_PriorityList& aList = myLayers.ChangeValue (aSeqPos); |
169 | |
170 | // remove structure from associated list |
171 | // if the structure is not found there, |
172 | // scan through layers and remove it |
173 | if (aList.Remove (theStructure) >= 0) |
174 | { |
175 | myNbStructures--; |
176 | return; |
177 | } |
178 | |
179 | // scan through layers and remove it |
180 | Standard_Integer aSeqId = 1; |
181 | OpenGl_SequenceOfLayers::Iterator anIts; |
182 | for (anIts.Init (myLayers); anIts.More (); anIts.Next (), aSeqId++) |
183 | { |
184 | OpenGl_PriorityList& aScanList = anIts.ChangeValue (); |
185 | if (aSeqPos == aSeqId) |
186 | continue; |
187 | |
188 | if (aScanList.Remove (theStructure) >= 0) |
189 | { |
190 | myNbStructures--; |
191 | return; |
192 | } |
193 | } |
194 | } |
195 | |
196 | //======================================================================= |
197 | //function : ChangeLayer |
198 | //purpose : |
199 | //======================================================================= |
200 | |
201 | void OpenGl_LayerList::ChangeLayer (const OpenGl_Structure *theStructure, |
202 | const Standard_Integer theOldLayerId, |
203 | const Standard_Integer theNewLayerId) |
204 | { |
205 | Standard_Integer aSeqPos = !HasLayer (theOldLayerId) ? |
206 | 1 : myLayerIds.Find (theOldLayerId); |
207 | |
208 | OpenGl_PriorityList& aList = myLayers.ChangeValue (aSeqPos); |
209 | Standard_Integer aPriority; |
210 | |
211 | // take priority and remove structure from list found by <theOldLayerId> |
212 | // if the structure is not found there, scan through all other layers |
213 | if ((aPriority = aList.Remove (theStructure)) >= 0) |
214 | { |
215 | myNbStructures--; |
216 | AddStructure (theStructure, theNewLayerId, aPriority); |
217 | } |
218 | else |
219 | { |
220 | // scan through layers and remove it |
221 | Standard_Integer aSeqId = 1; |
222 | OpenGl_SequenceOfLayers::Iterator anIts; |
223 | for (anIts.Init (myLayers); anIts.More (); anIts.Next (), aSeqId++) |
224 | { |
225 | OpenGl_PriorityList& aScanList = anIts.ChangeValue (); |
226 | if (aSeqPos == aSeqId) |
227 | continue; |
228 | |
229 | // try to remove structure and get priority value from this layer |
230 | if ((aPriority = aList.Remove (theStructure)) >= 0) |
231 | { |
232 | myNbStructures--; |
233 | AddStructure (theStructure, theNewLayerId, aPriority); |
234 | break; |
235 | } |
236 | } |
237 | } |
238 | } |
239 | |
240 | //======================================================================= |
241 | //function : Render |
242 | //purpose : Render this element |
243 | //======================================================================= |
244 | |
245 | void OpenGl_LayerList::Render (const Handle(OpenGl_Workspace) &theWorkspace) const |
246 | { |
247 | OpenGl_SequenceOfLayers::Iterator anIts; |
248 | for(anIts.Init (myLayers); anIts.More (); anIts.Next ()) |
249 | { |
250 | const OpenGl_PriorityList& aList = anIts.Value (); |
251 | if (aList.NbStructures () > 0) |
252 | { |
253 | // separate depth buffers |
254 | glClear (GL_DEPTH_BUFFER_BIT); |
255 | |
256 | // render priority list |
257 | aList.Render (theWorkspace); |
258 | } |
259 | } |
260 | } |