Developer Documentation
PolyLineSelectionPlugin.cc
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48 \*===========================================================================*/
49 
50 #include "PolyLineSelectionPlugin.hh"
51 
53 
54 // Primitive type icons
55 #define VERTEX_TYPE "polyline_vertex.png"
56 #define EDGE_TYPE "polyline_edge.png"
57 // =======================================
58 // Define operations
59 // =======================================
60 // Vertices:
61 #define V_SELECT_ALL "Select All Vertices"
62 #define V_DESELECT_ALL "Deselect All Vertices"
63 #define V_INVERT "Invert Vertex Selection"
64 #define V_DELETE "Delete Selected Vertices"
65 // Edges:
66 #define E_SELECT_ALL "Select All Edges"
67 #define E_DESELECT_ALL "Deselect All Edges"
68 #define E_INVERT "Invert Edge Selection"
69 #define E_DELETE "Delete Selected Edges"
70 
73 vertexType_(0),
74 edgeType_(0),
75 allSupportedTypes_(0) {
76 }
77 
78 //==============================================================================================
79 
81 }
82 
83 //==============================================================================================
84 
85 void PolyLineSelectionPlugin::initializePlugin() {
86 
87  // Tell core about all scriptable slots
89 }
90 
91 //==============================================================================================
92 
93 void PolyLineSelectionPlugin::pluginsInitialized() {
94  // Create new selection environment for polylines
95  // and register polyline data type for the environment.
96 
97  QString iconPath = OpenFlipper::Options::iconDirStr() + OpenFlipper::Options::dirSeparator();
98 
99  emit addSelectionEnvironment("PolyLine Selections", "Select polyline primitives.",
100  iconPath + "polyline_type.png", environmentHandle_);
101 
102  // Register mesh object types
103  emit registerType(environmentHandle_, DATA_POLY_LINE);
104 
105  emit addPrimitiveType(environmentHandle_, "Select Polyline Vertices", iconPath + VERTEX_TYPE, vertexType_);
106  emit addPrimitiveType(environmentHandle_, "Select Polyline Edges", iconPath + EDGE_TYPE, edgeType_);
107 
109 
110  // Determine, which selection modes are requested
111  emit showToggleSelectionMode(environmentHandle_, true, allSupportedTypes_);
112  emit showVolumeLassoSelectionMode(environmentHandle_, true, allSupportedTypes_);
113 
114  // Define vertex operations
115  QStringList vertexOperations;
116  vertexOperations.append(V_SELECT_ALL);
117  vertexOperations.append(V_DESELECT_ALL);
118  vertexOperations.append(V_INVERT);
119  vertexOperations.append(V_DELETE);
120 
121  QStringList edgeOperations;
122  edgeOperations.append(E_SELECT_ALL);
123  edgeOperations.append(E_DESELECT_ALL);
124  edgeOperations.append(E_INVERT);
125  edgeOperations.append(E_DELETE);
126 
127  emit addSelectionOperations(environmentHandle_, vertexOperations, "Vertex Operations", vertexType_);
128  emit addSelectionOperations(environmentHandle_, edgeOperations, "Edge Operations", edgeType_);
129 
130  // Register key shortcuts:
131 
132  // Select (a)ll
133  emit registerKeyShortcut(Qt::Key_A, Qt::ControlModifier);
134  // (C)lear selection
135  emit registerKeyShortcut(Qt::Key_C, Qt::NoModifier);
136  // (I)nvert selection
137  emit registerKeyShortcut(Qt::Key_I, Qt::NoModifier);
138  // Delete selected entities
139  emit registerKeyShortcut(Qt::Key_Delete, Qt::NoModifier);
140 }
141 
142 //==============================================================================================
143 
145 
146  emit setSlotDescription("selectAllVertices(int)", tr("Select all vertices of a polyline"),
147  QStringList("objectId"), QStringList("Id of object"));
148  emit setSlotDescription("deselectAllVertices(int)", tr("Deselect all vertices of a polyline"),
149  QStringList("objectId"), QStringList("Id of object"));
150  emit setSlotDescription("invertVertexSelection(int)", tr("Invert vertex selection"),
151  QStringList("objectId"), QStringList("Id of object"));
152  emit setSlotDescription("deleteSelectedVertices(int)", tr("Delete selected vertices"),
153  QStringList("objectId"), QStringList("Id of object"));
154  emit setSlotDescription("selectVertices(int,IdList)", tr("Select the specified vertices"),
155  QString("objectId,vertexList").split(","), QString("Id of object,List of vertices").split(","));
156 
157  emit setSlotDescription("selectAllEdges(int)", tr("Select all edges of a polyline"),
158  QStringList("objectId"), QStringList("Id of object"));
159  emit setSlotDescription("deselectAllEdges(int)", tr("Deselect all edges of a polyline"),
160  QStringList("objectId"), QStringList("Id of object"));
161  emit setSlotDescription("invertEdgeSelection(int)", tr("Invert edge selection"),
162  QStringList("objectId"), QStringList("Id of object"));
163  emit setSlotDescription("deleteSelectedEdges(int)", tr("Delete selected edges"),
164  QStringList("objectId"), QStringList("Id of object"));
165  emit setSlotDescription("selectEdges(int,IdList)", tr("Select the specified edges"),
166  QString("objectId,edgeList").split(","), QString("Id of object,List of edges").split(","));
167 
168  emit setSlotDescription("loadSelection(int,QString)", tr("Load selection from selection file"),
169  QString("objectId,filename").split(","), QString("Id of an object,Selection file").split(","));
170 }
171 
172 //==============================================================================================
173 
175 
176  SelectionInterface::PrimitiveType type = 0u;
177  emit getActivePrimitiveType(type);
178 
179  if((type & allSupportedTypes_) == 0)
180  return;
181 
182  // Test if operation should be applied to target objects only
183  bool targetsOnly = false;
184  emit targetObjectsOnly(targetsOnly);
187 
188  if(_operation == V_SELECT_ALL) {
189  // Select all vertices
190  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
191  o_it != PluginFunctions::objectsEnd(); ++o_it) {
192  if (o_it->visible()) {
193  selectAllVertices(o_it->id());
194  }
195 
196  emit updatedObject(o_it->id(), UPDATE_SELECTION);
197  }
198  } else if (_operation == V_DESELECT_ALL) {
199  // Deselect all vertices
200  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
201  o_it != PluginFunctions::objectsEnd(); ++o_it) {
202  if (o_it->visible()) {
203  deselectAllVertices(o_it->id());
204  }
205 
206  emit updatedObject(o_it->id(), UPDATE_SELECTION);
207  }
208  } else if (_operation == V_INVERT) {
209  // Deselect all vertices
210  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
211  o_it != PluginFunctions::objectsEnd(); ++o_it) {
212  if (o_it->visible()) {
213  invertVertexSelection(o_it->id());
214  }
215 
216  emit updatedObject(o_it->id(), UPDATE_SELECTION);
217  }
218  } else if (_operation == V_DELETE) {
219  // Deselect all vertices
220  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
221  o_it != PluginFunctions::objectsEnd(); ++o_it) {
222  if (o_it->visible()) {
223  deleteSelectedVertices(o_it->id());
224  }
225 
226  emit updatedObject(o_it->id(), UPDATE_SELECTION);
227  }
228  } else if(_operation == E_SELECT_ALL) {
229  // Select all vertices
230  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
231  o_it != PluginFunctions::objectsEnd(); ++o_it) {
232  if (o_it->visible()) {
233  selectAllEdges(o_it->id());
234  }
235 
236  emit updatedObject(o_it->id(), UPDATE_SELECTION);
237  }
238  } else if (_operation == E_DESELECT_ALL) {
239  // Deselect all vertices
240  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
241  o_it != PluginFunctions::objectsEnd(); ++o_it) {
242  if (o_it->visible()) {
243  deselectAllEdges(o_it->id());
244  }
245 
246  emit updatedObject(o_it->id(), UPDATE_SELECTION);
247  }
248  } else if (_operation == E_INVERT) {
249  // Deselect all vertices
250  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
251  o_it != PluginFunctions::objectsEnd(); ++o_it) {
252  if (o_it->visible()) {
253  invertEdgeSelection(o_it->id());
254  }
255 
256  emit updatedObject(o_it->id(), UPDATE_SELECTION);
257  }
258  } else if (_operation == E_DELETE) {
259  // Deselect all vertices
260  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
261  o_it != PluginFunctions::objectsEnd(); ++o_it) {
262  if (o_it->visible()) {
263  deleteSelectedEdges(o_it->id());
264  }
265 
266  emit updatedObject(o_it->id(), UPDATE_SELECTION);
267  }
268  }
269 }
270 
271 //==============================================================================================
272 
273 void PolyLineSelectionPlugin::slotToggleSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect) {
274 
275  // Return if none of the currently active types is handled by this plugin
276  if((_currentType & allSupportedTypes_) == 0) return;
277 
278  // Return if mouse event is not a left-button click
279  if(_event->button() != Qt::LeftButton) return;
280 
281  size_t node_idx, target_idx;
282  ACG::Vec3d hit_point;
283 
284  BaseObjectData* object = 0;
285 
286  if(_currentType & vertexType_) {
287  // Perform picking
288  bool successfullyPicked = PluginFunctions::scenegraphPick(ACG::SceneGraph::PICK_VERTEX, _event->pos(), node_idx,
289  target_idx, &hit_point) && PluginFunctions::getPickedObject(node_idx, object);
290 
291  if(successfullyPicked) {
292  PolyLine* polyline = PluginFunctions::polyLine(object);
293 
294  if(!polyline)
295  return;
296 
297  if(polyline->vertex_selected(target_idx) || _deselect)
298  polyline->deselect_vertex(target_idx);
299  else
300  polyline->select_vertex(target_idx);
301 
302  emit updatedObject(object->id(), UPDATE_SELECTION);
303  }
304  }
305 
306  if(_currentType & edgeType_) {
307  // Perform picking
308  bool successfullyPicked = PluginFunctions::scenegraphPick(ACG::SceneGraph::PICK_EDGE, _event->pos(), node_idx,
309  target_idx, &hit_point) && PluginFunctions::getPickedObject(node_idx, object);
310 
311  if(successfullyPicked) {
312  PolyLine* polyline = PluginFunctions::polyLine(object);
313 
314  if(!polyline)
315  return;
316 
317  if(polyline->edge_selected(target_idx) || _deselect)
318  polyline->deselect_edge(target_idx);
319  else
320  polyline->select_edge(target_idx);
321 
322  emit updatedObject(object->id(), UPDATE_SELECTION);
323  }
324  }
325 }
326 
327 //==============================================================================================
328 
329 void PolyLineSelectionPlugin::slotVolumeLassoSelection(QMouseEvent* _event, SelectionInterface::PrimitiveType _currentType, bool _deselect) {
330 
331  // Return if none of the currently active types is handled by this plugin
332  if((_currentType & allSupportedTypes_) == 0) return;
333 
334  ACG::Vec3d hit_point;
335 
336  if(_event->type() == QEvent::MouseButtonPress) {
337 
339  QPoint p(_event->pos().x(), state.viewport_height() - _event->pos().y());
340 
341  volumeLassoPoints_.append(p);
342 
343  return;
344 
345  } else if(_event->type() == QEvent::MouseButtonDblClick) {
346 
348 
349  QPolygon polygon(volumeLassoPoints_);
350 
351  bool targetsOnly = false;
352  emit targetObjectsOnly(targetsOnly);
355 
356  // Select all vertices that lie in this region
358  o_it != PluginFunctions::objectsEnd(); ++o_it) {
359 
360  if (o_it->visible()) {
361 
363 
364  if(plo) {
365 
366  PolyLine* polyline = plo->line();
367 
368  if(polyline) {
369 
370  if(_currentType & vertexType_) {
371 
372  for(unsigned int i = 0; i < polyline->n_vertices(); ++i) {
373  ACG::Vec3d pp = state.project(polyline->point(i));
374  QPoint p((int)pp[0], (int)pp[1]);
375 
376  if(polygon.containsPoint(p, Qt::OddEvenFill)) {
377  if(_deselect)
378  polyline->deselect_vertex(i);
379  else
380  polyline->select_vertex(i);
381  }
382  }
383  }
384 
385  if(_currentType & edgeType_) {
386 
387  for(unsigned int i = 0; i < polyline->n_vertices(); ++i) {
388 
389  ACG::Vec3d edgeMidPoint = polyline->point(i) + 0.5*polyline->edge_vector(i);
390 
391  ACG::Vec3d pp = state.project(edgeMidPoint);
392  QPoint p((int)pp[0], (int)pp[1]);
393 
394  if(polygon.containsPoint(p, Qt::OddEvenFill)) {
395  if(_deselect)
396  polyline->deselect_edge(i);
397  else
398  polyline->select_edge(i);
399  }
400  }
401  }
402  }
403  }
404  }
405 
406  emit updatedObject(o_it->id(), UPDATE_SELECTION);
407  }
408 
409 
410  // Clear lasso points
411  volumeLassoPoints_.clear();
412  }
413 }
414 
415 //==============================================================================================
416 
417 void PolyLineSelectionPlugin::loadSelection(int _objId, const QString& _filename) {
418 
419  // Load ini file
420  INIFile file;
421 
422  if(!file.connect(_filename, false)) {
423  emit log(LOGERR, QString("Could not read file '%1'!").arg(_filename));
424  return;
425  }
426 
427  // Load selection from file
428  loadIniFile(file, _objId);
429 }
430 
431 //==============================================================================================
432 
433 void PolyLineSelectionPlugin::loadIniFile(INIFile& _ini, int _id) {
434  // From INI Interface
435  // Load plugin specific settings
436 }
437 
438 //==============================================================================================
439 
440 void PolyLineSelectionPlugin::saveIniFile(INIFile& _ini, int _id) {
441  // From INI Interface
442  // Save plugin specific settings
443 }
444 
445 //==============================================================================================
446 
448 
449  // Iterate over all polyline objects in the scene and save
450  // the selections for all supported entity types
452  o_it != PluginFunctions::objectsEnd(); ++o_it) {
453 
454  // Read section for each object
455  // Append object name to section identifier
456  QString section = QString("PolyLineSelection") + "//" + o_it->name();
457  if(!_file.section_exists(section)) {
458  continue;
459  }
460 
461  std::vector<int> ids;
462  // Load vertex selection:
463  _file.get_entry(ids, section, "VertexSelection");
464  selectVertices(o_it->id(), ids);
465  ids.clear();
466  // Load edge selection:
467  _file.get_entry(ids, section, "EdgeSelection");
468  selectEdges(o_it->id(), ids);
469  ids.clear();
470 
471  emit updatedObject(o_it->id(), UPDATE_SELECTION);
472  }
473 }
474 
475 //==============================================================================================
476 
478 
479  // Iterate over all polyline objects in the scene and save
480  // the selections for all vertices
482  o_it != PluginFunctions::objectsEnd(); ++o_it) {
483 
484  // Create section for each object
485  // Append object name to section identifier
486  QString section = QString("PolyLineSelection") + "//" + o_it->name();
487 
488  // Store vertex selection:
489  _file.add_entry(section, "VertexSelection", getVertexSelection(o_it->id()));
490  _file.add_entry(section, "EdgeSelection", getEdgeSelection(o_it->id()));
491  }
492 }
493 
494 //==============================================================================================
495 
496 void PolyLineSelectionPlugin::slotKeyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers) {
497 
498  SelectionInterface::PrimitiveType type = 0u;
499  emit getActivePrimitiveType(type);
500 
501  if((type & allSupportedTypes_) == 0) {
502  // No supported type is active
503  return;
504  }
505 
506  bool targetsOnly = false;
507  emit targetObjectsOnly(targetsOnly);
510 
511  if(_key == Qt::Key_A && _modifiers == Qt::ControlModifier) {
512  // Select all vertices
513  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
514  o_it != PluginFunctions::objectsEnd(); ++o_it) {
515  if (o_it->visible()) {
516  if(type & vertexType_)
517  selectAllVertices(o_it->id());
518  if(type & edgeType_)
519  selectAllEdges(o_it->id());
520  }
521  emit updatedObject(o_it->id(), UPDATE_SELECTION);
522  }
523  } else if(_key == Qt::Key_C && _modifiers == Qt::NoModifier) {
524  // Deselect all vertices
525  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
526  o_it != PluginFunctions::objectsEnd(); ++o_it) {
527  if (o_it->visible()) {
528  if(type & vertexType_)
529  deselectAllVertices(o_it->id());
530  if(type & edgeType_)
531  deselectAllEdges(o_it->id());
532  }
533  emit updatedObject(o_it->id(), UPDATE_SELECTION);
534  }
535  } else if(_key == Qt::Key_I && _modifiers == Qt::NoModifier) {
536  // Invert vertex selection
537  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
538  o_it != PluginFunctions::objectsEnd(); ++o_it) {
539  if (o_it->visible()) {
540  if(type & vertexType_)
541  invertVertexSelection(o_it->id());
542  if(type & edgeType_)
543  invertEdgeSelection(o_it->id());
544  }
545  emit updatedObject(o_it->id(), UPDATE_SELECTION);
546  }
547  } else if(_key == Qt::Key_Delete && _modifiers == Qt::NoModifier) {
548  // Delete selected vertices and its children
549  for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_POLY_LINE));
550  o_it != PluginFunctions::objectsEnd(); ++o_it) {
551  if (o_it->visible()) {
552  if(type & vertexType_)
553  deleteSelectedVertices(o_it->id());
554  if(type & edgeType_)
555  deleteSelectedEdges(o_it->id());
556  }
557  emit updatedObject(o_it->id(), UPDATE_ALL);
558  }
559  }
560 }
561 
562 //==============================================================================================
563 
564 
565 
566 
bool scenegraphPick(ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, size_t &_nodeIdx, size_t &_targetIdx, ACG::Vec3d *_hitPointPtr=0)
Execute picking operation on scenegraph.
IdList getEdgeSelection(int _objectId)
Get current edge selection.
void slotSelectionOperation(QString _operation)
A specific operation is requested.
void invertEdgeSelection(int _objectId)
Invert edge selection.
PolyLine * polyLine(BaseObjectData *_object)
Get a poly Line from an object.
picks edges (may not be implemented for all nodes)
Definition: PickTarget.hh:80
void deselectAllVertices(int _objectId)
Deselect all vertices of a skeleton.
const UpdateType UPDATE_ALL(UpdateTypeSet(1))
Identifier for all updates.
void selectAllEdges(int _objectId)
Select all edges of a skeleton.
void add_entry(const QString &_section, const QString &_key, const QString &_value)
Addition / modification of a string entry.
Definition: INIFile.cc:257
void deselectAllEdges(int _objectId)
Deselect all edges of a skeleton.
Vec3d project(const Vec3d &_point) const
project point in world coordinates to window coordinates
Definition: GLState.cc:640
void slotToggleSelection(QMouseEvent *_event, SelectionInterface::PrimitiveType _currentType, bool _deselect)
Called whenever the user performs a toggle selection.
PolyLineObject * polyLineObject(BaseObjectData *_object)
Cast an BaseObject to a PolyLineObject if possible.
const UpdateType UPDATE_SELECTION(UpdateTypeSet(16))
Selection updated.
void selectEdges(int _objectId, const IdList &_ids, bool _deselect=false)
Select specific edges of a skeleton.
void deleteSelectedVertices(int _objectId)
Delete selected vertices.
const QStringList ALL_OBJECTS
Iterable object range.
bool get_entry(QString &_val, const QString &_section, const QString &_key) const
Access to a string entry.
Definition: INIFile.cc:433
void slotVolumeLassoSelection(QMouseEvent *_event, SelectionInterface::PrimitiveType _currentType, bool _deselect)
Called whenever the user performs a volume lasso selection.
Predefined datatypes.
Definition: DataTypes.hh:83
Point edge_vector(unsigned int _i) const
get the i-th oriented edge vector
Definition: PolyLineT.hh:166
int id() const
Definition: BaseObject.cc:190
void slotSaveSelection(INIFile &_file)
Save selection for all objects in the scene.
PrimitiveType allSupportedTypes_
Handle to selection environment.
#define DATA_POLY_LINE
Definition: PolyLine.hh:64
DLLEXPORT ObjectIterator objectsEnd()
Return Iterator to Object End.
Point & point(unsigned int _i)
Get a point of the polyline.
Definition: PolyLineT.hh:142
void updateSlotDescriptions()
Set slot descriptions for scripting functions.
void selectAllVertices(int _objectId)
Select all vertices of a skeleton.
picks verices (may not be implemented for all nodes)
Definition: PickTarget.hh:82
int viewport_height() const
get viewport height
Definition: GLState.hh:849
QStringList IteratorRestriction
Iterable object range.
QVector< QPoint > volumeLassoPoints_
Keep volume lasso points.
void selectVertices(int _objectId, const IdList &_ids, bool _deselect=false)
Select specific vertices of a skeleton.
void slotLoadSelection(const INIFile &_file)
Load selection for specific objects in the scene.
PolyLine * line()
return a pointer to the line
void deleteSelectedEdges(int _objectId)
Delete selected edges.
void invertVertexSelection(int _objectId)
Invert vertex selection.
const QStringList TARGET_OBJECTS("target")
Iterable object range.
QString environmentHandle_
Handle to selection environment.
void slotKeyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers)
One of the previously registered keys has been pressed.
size_t n_vertices() const
Get number of vertices.
Definition: PolyLineT.hh:116
Class for the handling of simple configuration files.
Definition: INIFile.hh:99
bool connect(const QString &name, const bool create)
Connect INIFile object with given filename.
Definition: INIFile.cc:70
Viewer::ViewerProperties & viewerProperties(int _id)
Get the viewer properties Use this functions to get basic viewer properties such as backgroundcolor o...
IdList getVertexSelection(int _objectId)
Get current vertex selection.
~PolyLineSelectionPlugin()
Default destructor.
PolyLineSelectionPlugin()
Default constructor.
bool section_exists(const QString &_section) const
Check if given section exists in the current INI file.
Definition: INIFile.cc:227
bool getPickedObject(const size_t _node_idx, BaseObjectData *&_object)
Get the picked mesh.
PrimitiveType edgeType_
Handle to selection environment.
PrimitiveType vertexType_
Primitive type handles:
ACG::GLState & glState()
Get the glState of the Viewer.