/// Returns the current operation or NULL
/// \return the current operation
ModuleBase_Operation* currentOperation() const;
- /// Sets the current operation or NULL
- /// \return the current operation
+ /// Returns true is operation manager has at least one non-null operation.
+ bool hasOperation() const;
+ /// Returns number of operations in the stack
+ int operationsCount() const;
+ /// Start the operation and append it to the stack of operations
+ /// \param theOperation the started operation
+ /// \return the state whether the current operation is started
bool startOperation(ModuleBase_Operation* theOperation);
+ /// Abort the operation and append it to the stack of operations
+ /// \return the state whether the current operation is aborted
+ bool abortOperation();
+
signals:
/// Signal about an operation is started. It is emitted after the start() of operation is done.
void operationStarted();
void operationStopped(ModuleBase_Operation* theOperation);
protected:
+ /// Sets the current operation or NULL
+ /// \param theOperation the started operation
+ /// \param isCheckBeforeStart the flag whether to check whether the operation can be started
+ /// \return the state whether the operation is resumed
+ void resumeOperation(ModuleBase_Operation* theOperation);
+
/// Returns whether the operation can be started. Check if there is already started operation and
/// the granted parameter of the launched operation
/// \param theOperation an operation to check
bool canStartOperation(ModuleBase_Operation* theOperation);
+ /// Returns whether the operation can be stopped.
+ bool canStopOperation();
+
protected slots:
/// Slot that is called by an operation stop. Removes the stopped operation form the stack.
/// If there is a suspended operation, restart it.
