SHAPER  9.12.0
PlaneGCSSolver_Update.h
1 // Copyright (C) 2014-2023 CEA, EDF
2 //
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
7 //
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
12 //
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 //
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
18 //
19 
20 #ifndef PlaneGCSSolver_Update_H_
21 #define PlaneGCSSolver_Update_H_
22 
23 #include <ModelAPI_Feature.h>
24 
25 #include <list>
26 #include <memory>
27 #include <string>
28 
31 typedef std::shared_ptr<PlaneGCSSolver_Update> UpdaterPtr;
32 
38 {
39 public:
40  PlaneGCSSolver_Update(UpdaterPtr theNext = UpdaterPtr())
41  : myNext(theNext)
42  {}
43 
44  virtual ~PlaneGCSSolver_Update() {}
45 
50  virtual void attach(SketchSolver_Constraint* theObserver, const std::string& theType) = 0;
51 
53  void detach(SketchSolver_Constraint* theObserver) {
54  std::list<SketchSolver_Constraint*>::iterator anIt = myObservers.begin();
55  for (; anIt != myObservers.end(); ++anIt)
56  if (*anIt == theObserver) {
57  myObservers.erase(anIt);
58  break;
59  }
60  // detach listener from all senders
61  if (myNext)
62  myNext->detach(theObserver);
63  }
64 
66  virtual void update(const FeaturePtr& theFeature) = 0;
67 
68 protected:
69  UpdaterPtr myNext;
70  std::list<SketchSolver_Constraint*> myObservers;
71 };
72 
73 #endif
Send events to listeners about changing a feature.
Definition: PlaneGCSSolver_Update.h:38
UpdaterPtr myNext
next updater, access if current one unable to process request
Definition: PlaneGCSSolver_Update.h:69
std::list< SketchSolver_Constraint * > myObservers
list of observers
Definition: PlaneGCSSolver_Update.h:70
void detach(SketchSolver_Constraint *theObserver)
Detach listener.
Definition: PlaneGCSSolver_Update.h:53
virtual void attach(SketchSolver_Constraint *theObserver, const std::string &theType)=0
Attach listener.
virtual void update(const FeaturePtr &theFeature)=0
Send notification about update of the feature to all interested.
Converts SketchPlugin constraint to the constraint applicable for solver.
Definition: SketchSolver_Constraint.h:39