1 // File: XGUI_OperationMgr.h
2 // Created: 20 Apr 2014
3 // Author: Natalia ERMOLAEVA
5 #ifndef XGUI_OperationMgr_H
6 #define XGUI_OperationMgr_H
10 #include <ModuleBase_Operation.h>
14 #include <QStringList>
18 /**\class XGUI_OperationMgr
20 * \brief Operation manager. Servers to manipulate to the workshop operations. Contains a stack
21 * of started operations. In simple case, if only one operation is started, the stack contains
22 * one operation. It is possible for some kind of operations to start them above already
23 * started one. In that case, the previous active operation becomes suspended, a new one - active.
24 * The new operation is added to the top of the stack. Then it is finished, it is removed from
25 * the stack and the previous operation is activated.
27 class XGUI_EXPORT XGUI_OperationMgr : public QObject
32 /// \param theParent the parent
33 XGUI_OperationMgr(QObject* theParent);
35 virtual ~XGUI_OperationMgr();
37 /// Returns the current operation or NULL
38 /// \return the current operation
39 ModuleBase_Operation* currentOperation() const;
40 /// Check if the given operation is active operation.
41 /// Also, returns false is ther is no active operation.
42 bool isCurrentOperation(ModuleBase_Operation* theOperation);
43 /// Returns true is operation manager has at least one non-null operation.
44 bool hasOperation() const;
45 /// Returns number of operations in the stack
46 int operationsCount() const;
47 /// Returns list of all operations IDs
48 QStringList operationList() const;
50 /// Returns previous (parent) operation if given operation started.
51 /// else, or if there is no parent - returns NULL
52 ModuleBase_Operation* previousOperation(ModuleBase_Operation* theOperation) const;
54 virtual bool eventFilter(QObject *theObject, QEvent *theEvent);
56 /// Start the operation and append it to the stack of operations
57 /// \param theOperation the started operation
58 /// \return the state whether the current operation is started
59 bool startOperation(ModuleBase_Operation* theOperation);
61 bool abortAllOperations();
64 /// Slot that commits the current operation.
65 void onCommitOperation();
66 /// Slot that aborts the current operation.
67 void onAbortOperation();
68 /// Slot that validates the current operation using the validateOperation method.
69 void onValidateOperation();
72 /// Signal about an operation is started. It is emitted after the start() of operation is done.
73 void operationStarted();
74 /// Signal about an operation is stopped. It is emitted after the stop() of operation is done.
75 /// \param theOperation a stopped operation
76 void operationStopped(ModuleBase_Operation* theOperation);
77 /// Signal about an operation is resumed. It is emitted after the resume() of operation is done.
78 void operationResumed();
79 /// Signal is emitted after the validate methods calls.
80 void operationValidated(bool);
81 /// Signal about the necessety of the next widget activating
82 /// \param theWidget the model widget
83 void activateNextWidget(ModuleBase_ModelWidget* theWidget);
87 /// Commits the current operatin if it is valid
88 bool commitOperation();
89 /// Sets the current operation or NULL
90 /// \param theOperation the started operation
91 /// \param isCheckBeforeStart the flag whether to check whether the operation can be started
92 /// \return the state whether the operation is resumed
93 void resumeOperation(ModuleBase_Operation* theOperation);
95 /// Returns whether the operation can be started. Check if there is already started operation and
96 /// the granted parameter of the launched operation
97 /// \param theOperation an operation to check
98 bool canStartOperation(ModuleBase_Operation* theOperation);
100 bool canStopOperation();
102 /// Returns true if the operation can be aborted
103 bool canAbortOperation();
106 /// SLOT, that is called by the key in the property panel is clicked.
107 /// \param theName the attribute name
108 /// \param theEvent the mouse event
109 bool onKeyReleased(QKeyEvent* theEvent);
111 /// SLOT, that reacts to the widget activation
112 /// \param theWidget an activated widget
113 void onWidgetActivated(ModuleBase_ModelWidget* theWidget);
116 /// Slot that is called by an operation stop. Removes the stopped operation form the stack.
117 /// If there is a suspended operation, restart it.
118 void onOperationStopped();
121 typedef QList<ModuleBase_Operation*> Operations; ///< definition for a list of operations
122 Operations myOperations; ///< a stack of started operations. The active operation is on top,
123 // others are suspended and started by the active is finished