1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
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.
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.
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
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #ifndef XGUI_OperationMgr_H
22 #define XGUI_OperationMgr_H
26 #include <ModuleBase_Operation.h>
27 #include "ModelAPI_Feature.h"
31 #include <QStringList>
35 class ModuleBase_IWorkshop;
37 class XGUI_ShortCutListener;
39 /**\class XGUI_OperationMgr
41 * \brief Operation manager. Servers to manipulate to the workshop operations. Contains a stack
42 * of started operations. In simple case, if only one operation is started, the stack contains
43 * one operation. It is possible for some kind of operations to start them above already
44 * started one. In that case, the previous active operation becomes suspended, a new one - active.
45 * The new operation is added to the top of the stack. Then it is finished, it is removed from
46 * the stack and the previous operation is activated.
48 class XGUI_EXPORT XGUI_OperationMgr : public QObject
53 /// \param theParent the parent
54 /// \param theWorkshop a reference to workshop
55 XGUI_OperationMgr(QObject* theParent, ModuleBase_IWorkshop* theWorkshop);
58 virtual ~XGUI_OperationMgr();
60 /// Switch on short cut listener
62 /// Switch off short cut listener
65 /// Set reference to workshop
66 /// \param theWorkshop reference to workshop
67 void setWorkshop(ModuleBase_IWorkshop* theWorkshop)
68 { myWorkshop = theWorkshop; };
71 ModuleBase_IWorkshop* workshop() const { return myWorkshop; }
73 /// Returns the current operation or NULL
74 /// \return the current operation
75 ModuleBase_Operation* currentOperation() const;
77 /// Check if the given operation is active operation.
78 /// Also, returns false is ther is no active operation.
79 bool isCurrentOperation(ModuleBase_Operation* theOperation);
81 /// Returns true is operation manager has at least one non-null operation.
82 bool hasOperation() const;
84 /// Returns true is operation manager has an operation with given Id.
85 bool hasOperation(const QString& theId) const;
87 /// Returns true if the operation can be aborted. If the operation is modified,
88 /// the warning message box is shown.
89 /// \param theOperation an operation which is checked on stop
90 bool canStopOperation(ModuleBase_Operation* theOperation);
92 /// Find and return operation by its Id.
93 ModuleBase_Operation* findOperation(const QString& theId) const;
95 /// Returns number of operations in the stack
96 int operationsCount() const;
98 /// Returns list of all operations IDs
99 QStringList operationList() const;
101 /// Returns previous (parent) operation if given operation started.
102 /// else, or if there is no parent - returns NULL
103 ModuleBase_Operation* previousOperation(ModuleBase_Operation* theOperation) const;
105 /// Start the operation and append it to the stack of operations
106 /// \param theOperation the started operation
107 /// \return the state whether the current operation is started
108 bool startOperation(ModuleBase_Operation* theOperation);
110 /// Returns whether the operation can be started. Check if there is already started operation and
111 /// the granted parameter of the launched operation
112 /// \param theId id of the operation which is going to start
113 /// \param isCommitted boolean value if the operation was committed otherwise it was aborted
114 bool canStartOperation(const QString& theId, bool& isCommitted);
116 /// If Apply is enabled and operation has modification, it is applyed, otherwise aborted
117 /// \param theOperation the started operation
118 /// \param isCommitted boolean value if the operation was committed otherwise it was aborted
119 void stopOperation(ModuleBase_Operation* theOperation, bool& isCommitted);
121 /// Aborts the parameter operation if it is current, else abort operations from the stack
122 /// of operations until the operation is found. All operations upper the parameter one are
124 /// \param theOperation an aborted operation
125 void abortOperation(ModuleBase_Operation* theOperation);
127 /// Slot that commits the current operation.
128 bool onCommitOperation();
130 /// Returns true if SHIFT is pressed
131 /// \param thePressed new boolean state
132 void setSHIFTPressed(const bool thePressed) { mySHIFTPressed = thePressed; }
134 /// Returns true if SHIFT is pressed
135 /// \return boolean value
136 bool hasSHIFTPressed() const { return mySHIFTPressed; }
139 /// Slot that aborts the current operation.
140 void onAbortOperation();
141 /// Slot that validates the current operation using the validateOperation method.
142 void onValidateOperation();
143 /// Commit all operations
144 bool commitAllOperations();
145 /// Abort all operations
146 bool abortAllOperations();
149 /// Signal about an operation is stopped. It is emitted after the stop() of operation is done.
150 /// \param theOperation a stopped operation
151 void operationStopped(ModuleBase_Operation* theOperation);
153 /// Signal about an operation is resumed. It is emitted after the resume() of operation is done.
154 void operationResumed(ModuleBase_Operation* theOperation);
156 /// Emitted when current operation is Committed
157 void operationCommitted(ModuleBase_Operation* theOperation);
159 /// Emitted when current operation is aborted
160 void operationAborted(ModuleBase_Operation* theOperation);
162 /// Signal is emitted after the key released click.
163 void keyEnterReleased();
165 public: // TEMPORARY, it should be protected and be performed automatically
166 /// Emits nestedStateChange for operations with an information about validity of the operation
167 /// \param theOperation the sent operation. If it is NULL, all operations in the stack are sent.
168 void updateApplyOfOperations(ModuleBase_Operation* theOperation = 0);
170 /// Commits the current operatin if it is valid
171 bool commitOperation();
173 protected: // TEMPORARY
174 /// Sets the current operation or NULL
175 /// \param theOperation the started operation
176 void resumeOperation(ModuleBase_Operation* theOperation);
178 /// Returns whether the parameter operation is granted in relation to the previous operation
179 /// in a stack of started operations. It is used in canStopOperation to avoid warning message
180 /// when granted operation is aborted, e.g. SketchLine in Sketch
181 /// \param theId id of the operation which is checked
182 /// \return boolean result
183 bool isGrantedOperation(const QString& theId);
185 /// Sets the feature as a current in the document
186 /// \param theFeature a feature
187 void setCurrentFeature(const FeaturePtr& theFeature);
190 /// SLOT, that is called by the key in the property panel is clicked.
191 /// \param theObject a sender of the event
192 /// \param theEvent the mouse event
193 bool onKeyReleased(QObject *theObject, QKeyEvent* theEvent);
195 /// The functionaly, that should be done by delete click
196 /// Fistly the active widget processes it, then workshop. If no one does not
197 /// process it, do nothing
198 /// \param theObject a sender of the event
199 bool onProcessDelete(QObject* theObject);
202 /// The functionaly, that should be done by enter click
203 /// Fistly the active widget processes it, then module. If no one does not
204 /// process it, the current operation is committed
205 /// \param theObject a sender of the event
206 bool onProcessEnter(QObject *theObject);
208 /// Slot that is called by an operation stop. Removes the stopped operation form the stack.
209 /// If there is a suspended operation, restart it.
210 void onOperationStopped();
212 /// Slot called before operation started. Stores the previous current feature, set the feature
213 /// of the operation as a current in the document. The previous current feature should be restored
214 /// by the operation abort/commit
215 void onBeforeOperationStarted();
217 /// Slot called after operation started
218 void onOperationStarted();
220 /// Slot called before operation aborted. Restore the previous current operation
221 void onBeforeOperationAborted();
223 /// Slot called after operation aborted
224 void onOperationAborted();
226 /// Slot called before operation committed. Restore the previous current operation
227 void onBeforeOperationCommitted();
229 /// Slot called after operation committed
230 void onOperationCommitted();
232 /// Slot called on operation resume
233 void onOperationResumed();
236 /// Checks if the object is a parent or a child under
237 /// \param theObject an investivated object
238 /// \param theParent a candidate to be a parent
239 static bool isChildObject(const QObject* theObject, const QObject* theParent);
242 typedef QList<ModuleBase_Operation*> Operations; ///< definition for a list of operations
243 Operations myOperations; ///< a stack of started operations. The active operation is on top,
244 // others are suspended and started by the active is finished
247 ModuleBase_IWorkshop* myWorkshop;
249 XGUI_ShortCutListener* myShortCutListener;