1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: XGUI_OperationMgr.h
4 // Created: 20 Apr 2014
5 // Author: Natalia ERMOLAEVA
7 #ifndef XGUI_OperationMgr_H
8 #define XGUI_OperationMgr_H
12 #include <ModuleBase_Operation.h>
16 #include <QStringList>
20 /**\class XGUI_OperationMgr
22 * \brief Operation manager. Servers to manipulate to the workshop operations. Contains a stack
23 * of started operations. In simple case, if only one operation is started, the stack contains
24 * one operation. It is possible for some kind of operations to start them above already
25 * started one. In that case, the previous active operation becomes suspended, a new one - active.
26 * The new operation is added to the top of the stack. Then it is finished, it is removed from
27 * the stack and the previous operation is activated.
29 class XGUI_EXPORT XGUI_OperationMgr : public QObject
34 /// \param theParent the parent
35 XGUI_OperationMgr(QObject* theParent);
37 virtual ~XGUI_OperationMgr();
39 /// Returns the current operation or NULL
40 /// \return the current operation
41 ModuleBase_Operation* currentOperation() const;
43 /// Check if the given operation is active operation.
44 /// Also, returns false is ther is no active operation.
45 bool isCurrentOperation(ModuleBase_Operation* theOperation);
47 /// Returns true is operation manager has at least one non-null operation.
48 bool hasOperation() const;
50 /// Returns true is operation manager has an operation with given Id.
51 bool hasOperation(const QString& theId) const;
53 /// Find and return operation by its Id.
54 ModuleBase_Operation* findOperation(const QString& theId) const;
56 /// Returns number of operations in the stack
57 int operationsCount() const;
59 /// Returns list of all operations IDs
60 QStringList operationList() const;
62 /// Returns previous (parent) operation if given operation started.
63 /// else, or if there is no parent - returns NULL
64 ModuleBase_Operation* previousOperation(ModuleBase_Operation* theOperation) const;
66 virtual bool eventFilter(QObject *theObject, QEvent *theEvent);
68 /// Start the operation and append it to the stack of operations
69 /// \param theOperation the started operation
70 /// \return the state whether the current operation is started
71 bool startOperation(ModuleBase_Operation* theOperation);
73 bool abortAllOperations();
75 /// Returns whether the operation can be started. Check if there is already started operation and
76 /// the granted parameter of the launched operation
77 /// \param theId id of the operation which is going to start
78 bool canStartOperation(QString theId);
80 bool canStopOperation();
82 /// Returns true if the operation can be aborted
83 bool canAbortOperation();
85 /// Blocking/unblocking enabling of Ok button in property panel.
86 /// It is used when operation can not be validated even all attributes are valid
87 void setLockValidating(bool toLock) { myIsValidationLock = toLock; }
89 /// Returns state of validation locking
90 bool isValidationLocked() const { return myIsValidationLock; }
93 /// Slot that commits the current operation.
94 void onCommitOperation();
95 /// Slot that aborts the current operation.
96 void onAbortOperation();
97 /// Slot that validates the current operation using the validateOperation method.
98 void onValidateOperation();
101 /// Signal about an operation is started. It is emitted after the start() of operation is done.
102 void operationStarted(ModuleBase_Operation* theOperation);
104 /// Signal about an operation is stopped. It is emitted after the stop() of operation is done.
105 /// \param theOperation a stopped operation
106 void operationStopped(ModuleBase_Operation* theOperation);
108 /// Signal about an operation is resumed. It is emitted after the resume() of operation is done.
109 void operationResumed(ModuleBase_Operation* theOperation);
111 /// Emitted when current operation is Committed
112 void operationCommitted(ModuleBase_Operation* theOperation);
114 /// Emitted when current operation is aborted
115 void operationAborted(ModuleBase_Operation* theOperation);
117 /// Signal is emitted after the validate methods calls.
118 void operationValidated(bool);
120 /// Signal is emitted after the current operation is filled with existing preselection.
121 void operationActivatedByPreselection();
123 /// Signal is emitted after the key released click.
124 void keyEnterReleased();
129 /// Commits the current operatin if it is valid
130 bool commitOperation();
131 /// Sets the current operation or NULL
132 /// \param theOperation the started operation
133 /// \param isCheckBeforeStart the flag whether to check whether the operation can be started
134 /// \return the state whether the operation is resumed
135 void resumeOperation(ModuleBase_Operation* theOperation);
138 /// SLOT, that is called by the key in the property panel is clicked.
139 /// \param theName the attribute name
140 /// \param theEvent the mouse event
141 bool onKeyReleased(QKeyEvent* theEvent);
144 /// Slot that is called by an operation stop. Removes the stopped operation form the stack.
145 /// If there is a suspended operation, restart it.
146 void onOperationStopped();
147 void onOperationStarted();
148 void onOperationAborted();
149 void onOperationCommitted();
150 void onOperationResumed();
153 typedef QList<ModuleBase_Operation*> Operations; ///< definition for a list of operations
154 Operations myOperations; ///< a stack of started operations. The active operation is on top,
155 // others are suspended and started by the active is finished
157 /// Lock/Unlock access to Ok button in property panel
158 bool myIsValidationLock;