Changeset 67e2b3 for src/Actions/Action.hpp

Timestamp:

Mar 24, 2010, 4:26:21 PM (16 years ago)

Author:

Tillmann Crueger <crueger@…>

Branches:

Action_Thermostats, Add_AtomRandomPerturbation, Add_FitFragmentPartialChargesAction, Add_RotateAroundBondAction, Add_SelectAtomByNameAction, Added_ParseSaveFragmentResults, AddingActions_SaveParseParticleParameters, Adding_Graph_to_ChangeBondActions, Adding_MD_integration_tests, Adding_ParticleName_to_Atom, Adding_StructOpt_integration_tests, AtomFragments, Automaking_mpqc_open, AutomationFragmentation_failures, Candidate_v1.5.4, Candidate_v1.6.0, Candidate_v1.6.1, Candidate_v1.7.0, Candidate_v1.7.1, ChangeBugEmailaddress, ChangingTestPorts, ChemicalSpaceEvaluator, CombiningParticlePotentialParsing, Combining_Subpackages, Debian_Package_split, Debian_package_split_molecuildergui_only, Disabling_MemDebug, Docu_Python_wait, EmpiricalPotential_contain_HomologyGraph, EmpiricalPotential_contain_HomologyGraph_documentation, Enable_parallel_make_install, Enhance_userguide, Enhanced_StructuralOptimization, Enhanced_StructuralOptimization_continued, Example_ManyWaysToTranslateAtom, Exclude_Hydrogens_annealWithBondGraph, FitPartialCharges_GlobalError, Fix_BoundInBox_CenterInBox_MoleculeActions, Fix_ChargeSampling_PBC, Fix_ChronosMutex, Fix_FitPartialCharges, Fix_FitPotential_needs_atomicnumbers, Fix_ForceAnnealing, Fix_IndependentFragmentGrids, Fix_ParseParticles, Fix_ParseParticles_split_forward_backward_Actions, Fix_PopActions, Fix_QtFragmentList_sorted_selection, Fix_Restrictedkeyset_FragmentMolecule, Fix_StatusMsg, Fix_StepWorldTime_single_argument, Fix_Verbose_Codepatterns, Fix_fitting_potentials, Fixes, ForceAnnealing_goodresults, ForceAnnealing_oldresults, ForceAnnealing_tocheck, ForceAnnealing_with_BondGraph, ForceAnnealing_with_BondGraph_continued, ForceAnnealing_with_BondGraph_continued_betteresults, ForceAnnealing_with_BondGraph_contraction-expansion, FragmentAction_writes_AtomFragments, FragmentMolecule_checks_bonddegrees, GeometryObjects, Gui_Fixes, Gui_displays_atomic_force_velocity, ImplicitCharges, IndependentFragmentGrids, IndependentFragmentGrids_IndividualZeroInstances, IndependentFragmentGrids_IntegrationTest, IndependentFragmentGrids_Sole_NN_Calculation, JobMarket_RobustOnKillsSegFaults, JobMarket_StableWorkerPool, JobMarket_unresolvable_hostname_fix, MoreRobust_FragmentAutomation, ODR_violation_mpqc_open, PartialCharges_OrthogonalSummation, PdbParser_setsAtomName, PythonUI_with_named_parameters, QtGui_reactivate_TimeChanged_changes, Recreated_GuiChecks, Rewrite_FitPartialCharges, RotateToPrincipalAxisSystem_UndoRedo, SaturateAtoms_findBestMatching, SaturateAtoms_singleDegree, StoppableMakroAction, Subpackage_CodePatterns, Subpackage_JobMarket, Subpackage_LinearAlgebra, Subpackage_levmar, Subpackage_mpqc_open, Subpackage_vmg, Switchable_LogView, ThirdParty_MPQC_rebuilt_buildsystem, TrajectoryDependenant_MaxOrder, TremoloParser_IncreasedPrecision, TremoloParser_MultipleTimesteps, TremoloParser_setsAtomName, Ubuntu_1604_changes, stable

Children:

5b0b98

Parents:

ce1d8c

Message:

Added methods that allow bookkeeping of actions for undo/redo methods

File:

• src/Actions/Action.hpp (modified) (2 diffs)

src/Actions/Action.hpp

@@ -11 +11 @@
 #include <string>
 
+// forward declaration
+
+class ActionState;
+class ActionSequence;
+
 /**
  * Base class for all actions.
@@ -21 +26 @@
 class Action
 {
-protected:
+friend class ActionSequence;
 public:
   Action(std::string _name,bool _doRegister=true);
   virtual ~Action();
 
-  virtual void call()=0;
-  virtual void undo()=0;
+  // this method only handles the infrastructure
+  // actuall action is passed on to a private virtual
+  void call();
+  ActionState* undo(ActionState*);
+  ActionState* redo(ActionState*);
+
   virtual bool canUndo()=0;
-  //virtual bool shouldUndo()=0;
+  virtual bool shouldUndo()=0;
 
   virtual const std::string getName();
 
+protected:
+  static ActionState* success;
+
 private:
+  virtual ActionState* performCall()=0;
+  virtual ActionState* performUndo(ActionState*)=0;
+  virtual ActionState* performRedo(ActionState*)=0;
+
   std::string name;
 };
 
+/**
+ * This class can be used by actions to save the state.
+ *
+ * It is implementing a memento pattern. The base class is completely empty,
+ * since no general state internals can be given. The Action performing
+ * the Undo should downcast to the apropriate type.
+ */
+class ActionState{
+public:
+  ActionState(){}
+  virtual ~ActionState(){}
+};
+
 #endif /* ACTION_H_ */