SelectionInterface.hh 47.5 KB
 Jan Möbius committed Mar 24, 2011 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 /*===========================================================================*\ * * * OpenFlipper * * Copyright (C) 2001-2010 by Computer Graphics Group, RWTH Aachen * * www.openflipper.org * * * *---------------------------------------------------------------------------* * This file is part of OpenFlipper. * * * * OpenFlipper is free software: you can redistribute it and/or modify * * it under the terms of the GNU Lesser General Public License as * * published by the Free Software Foundation, either version 3 of * * the License, or (at your option) any later version with the * * following exceptions: * * * * If other files instantiate templates or use macros * * or inline functions from this file, or you compile this file and * * link it with other files to produce an executable, this file does * * not by itself cause the resulting executable to be covered by the * * GNU Lesser General Public License. This exception does not however * * invalidate any other reasons why the executable file might be * * covered by the GNU Lesser General Public License. * * * * OpenFlipper is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU Lesser General Public License for more details. * * * * You should have received a copy of the GNU LesserGeneral Public * * License along with OpenFlipper. If not, * * see . * * * \*===========================================================================*/ /*===========================================================================*\ * * * $Revision$ * * $Author$ * * $Date$ * * * \*===========================================================================*/ #ifndef SELECTIONINTERFACE_HH #define SELECTIONINTERFACE_HH #include #include /** \file SelectionInterface.hh * * Interface for providing selection functionality for specific data types.\ref selectionInterfacePage */ /** \brief Interface for all plugins which want to use selection functions * * \ref selectionInterfacePage "Detailed description" * \n * * Using this interface you can instruct the core to select objects * and different primitive types. * * \nosubgrouping */ class SelectionInterface { public: typedef std::vector TypeList; typedef unsigned int PrimitiveType; /// Destructor virtual ~SelectionInterface() {}; //=========================================================================== /** @name Registering Selection Environments and primitives * * These functions are used to register your selection environment to * the selection system. The environment is basically a collection of selection * metaphors that will be available for a set of DataTypes. * * You Register the Environment via addSelectionEnvironment(). Afterwards you can * register DataTypes to the previously created environment with registerType(). * The selection interactions defined in the environment will only be available, * if the registered DataTypes exist. * * Each DataType can consist of different primitives (e.g. a mesh usually consists * of vertices edges and faces). Use addPrimitiveType() to register these * primitives and remember the handles you got.  Mike Kremer committed Mar 24, 2011 91 92 93 94 95 96 97  * * Here is a short example of how to add a new selection environment and * register some data type and primitive type: * * So in our plugin we first want to add a new selection environment: \code  Mike Kremer committed Mar 24, 2011 98 99  emit addSelectionEnvironment("Mesh Object Selections", "Select Triangle Mesh Primitives.", QIcon(someIconPath + "mesh_selection.png"), environmentHandle_);  Mike Kremer committed Mar 24, 2011 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136  \endcode * Now, our handle to the newly created environment is in environmentHandle_. * We should now see a new tab widget in the selection base tool box * displaying our selection environment: * * \image html selectionEnvironment.png * * We now want to register a specific data type for which we want to enable * selection. Say DATA_TRIANGLE_MESH: \code emit registerType(environmentHandle_, DATA_TRIANGLE_MESH); \endcode * * Repeat this for as many data types as you want to handle in your plugin. * Since triangle meshes normally consist of vertex, edge and face primitives, * we want to enable selection for the three of them: \code emit addPrimitiveType(environmentHandle_, "Select Vertices", QIcon(iconPath + "vertexType.png"), vertexType_); emit addPrimitiveType(environmentHandle_, "Select Edges", QIcon(iconPath + "edgeType.png"), edgeType_); emit addPrimitiveType(environmentHandle_, "Select Faces", QIcon(iconPath + "faceType.png"), faceType_); \endcode * * The three variables of type SelectionInterface::PrimitiveType vertexType_, edgeType_ and faceType_ * now hold the handles to the newly added primitive types. We use these to reference the types * later on. For each registered primitive type, we now see a button appearing in the recently * created environment tab in selection base plugin's tool box: * * \image html selectionPrimitives.png * * The user can now chose which primitive type she wants to select via simply clicking one of these * buttons (or more than one by holding the control key while clicking). We then go on with requesting * the available selection metaphors in the next section. *  Jan Möbius committed Mar 24, 2011 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198  * @{ */ //=========================================================================== signals: /** \brief Add a selection environment in order to provide selection functions for specific data type(s) * * This adds a toolbar button and initializes a new selection environment that supports * all objects/entities of a specified data type. The type for which the selection * applies is later registered via the signal registerType(QString,DataType). * Use the returned _handleName for referencing the selection environment. * * @param _modeName The name of the selection mode, e.g. "Mesh Selection" * @param _description The description for the selection mode (also tooltip) * @param _icon The icon for this mode (basically a type icon) * @param _handleName The handle of the recently added selection environment. Needed for referencing */ virtual void addSelectionEnvironment(QString _modeName, QString _description, QIcon _icon, QString& _handleName) {}; /** \brief Register data type for a selection environment * * After adding a new selection environment, one can register types which the * selection environment accounts for. For example, if we added a selection environment * for polylines, we would have to call registerType(environmentHandle,DATA_POLY_LINE) * in order to enable polyline selections. * * @param _handleName The handle of the selection environment for this type * @param _type The data type that should be added */ virtual void registerType(QString _handleName, DataType _type) {}; /** \brief Provide selection for primitives other than the standard ones * * Use this signal to add a new primitive type that can be selected. * This returns a handle to the newly added primitive type which will be * of use later on. * * @param _handleName The handle of the selection environment to which this type should be added * @param _name The name of the primitive type, e.g. "B-Spline Surface Control Point" * @param _icon The icon for the primitive type * @param _typeHandle The returned handle to the added primitive type */ virtual void addPrimitiveType(QString _handleName, QString _name, QIcon _icon, PrimitiveType& _typeHandle) {}; /** @} */ //=========================================================================== /** @name Enabling Selection Metaphors * \anchor SelectionInterface_enable_metaphors_group * The selection system provides a set of basic selection operations. * These include toggle selection, volume lasso, surface lasso, painting, * closest boundary and flood fill selection. * * The interactions for these metaphors are controlled by the Base Selection * Plugin. The results of these interactions are than passed on to the * specific selection plugins. * * These functions are used to tell the system, that you can handle the * given selection metaphors in your plugin. * * You can also add your custom seletion mode via addCustomSelectionMode().  Mike Kremer committed Mar 24, 2011 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220  * * To continue the above example, we now want to make toggle, volume lasso as well * a custom selection mode available for our data types: \code emit showToggleSelectionMode(environmentHandle_, true, vertexType_ | edgeType_ | faceType_); emit showVolumeLassoSelectionMode(environmentHandle_, true, vertexType_ | edgeType_ | faceType_); emit addCustomSelectionMode(environmentHandle_, "My Custom Selection", "Description of my mode", QIcon(someIconFile), vertexType_ | edgeType_); \endcode * * In the last parameter we determine for which of the registered primitive types * the selection metaphor will be available. Note that multiple primitive types * have to be OR'ed. The selection metaphors as well as the available primitive * types will be displayed in the selection pick tool bar: * * \image html selectionPickbar.png * * Now each time the user uses the toggle selection metaphor slotToggleSelection() * is called. See below for code examples on this. *  Jan Möbius committed Mar 24, 2011 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381  * @{ */ //=========================================================================== signals: /** \brief Show toggle selection mode in a specified selection environment * * Show or hide the toggle selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showToggleSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Show lasso selection mode in a specified selection environment * * Show or hide the lasso selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showLassoSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Show volume lasso selection mode in a specified selection environment * * Show or hide the volume lasso selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showVolumeLassoSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Show surface lasso selection mode in a specified selection environment * * Show or hide the surface lasso selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showSurfaceLassoSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Show sphere selection mode in a specified selection environment * * Show or hide the sphere selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showSphereSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Show closest boundary selection mode in a specified selection environment * * Show or hide the closest boundary selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showClosestBoundarySelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Show flood fill selection mode in a specified selection environment * * Show or hide the flood fill selection mode for the specified selection environment. * Note that per default no interactive selection mode will be available. * One will always have to explicitly add the required selection modes for * each selection environment. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _show Indicates whether the mode should be available or not * @param _associatedTypes Make this mode available only for the specified types (OR'ed) */ virtual void showFloodFillSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; /** \brief Add a custom interactive selection mode * * If a plugin should provide an interactive selection mode other than the * standard ones (which include toggle, lasso, volume lasso, sphere, closest boundary * and flood fill selection), one can add a custom interactive selection mode * via this signal. Once the custom mode is added, it will appear in the sub-menu * for the associated selection environment. If the user chooses this mode in order * to do selection, slotCustomSelection(QMouseEvent*,QString) is called. * This signal returns the added identifier for this selection mode in parameter * _identifier. * * @param _handleName The handle of the selection environment in which this mode should be available * @param _modeName The name of this mode (also button caption) * @param _description A brief description of what the selection mode does * @param _icon An icon which is used for this selection mode * @param _associatedTypes Make this mode available only for the specified types (OR'ed) * @param _customIdentifier Holds the identifier of the custom selection modes */ virtual void addCustomSelectionMode(QString _handleName, QString _modeName, QString _description, QIcon _icon, PrimitiveType _associatedTypes, QString& _customIdentifier) {}; /** @} */ //=========================================================================== /** @name States of the selection system. * * You can get the active data types, * primitive types and if only target objects should be affected. * * @{ */ //=========================================================================== /** \brief Get the data types that the currently active selection environment supports * * This fetches a list of data types that are supported by the currently activated * selection environment. * * @param _types The list of currently active data types */ virtual void getActiveDataTypes(TypeList& _types) {}; /** \brief Get the primitive type that is selected * * This returns the id of the primitive type that is selected. * * @param _type Id of selected primitive type */ virtual void getActivePrimitiveType(PrimitiveType& _type) {}; /** \brief Indicates whether selection should be performed on target objects only * * Self-explanatory * * @param _targetsOnly True if selection should restrict to target objects */ virtual void targetObjectsOnly(bool& _targetsOnly) {}; /** @} */ //=========================================================================== /** @name File Interaction *  Mike Kremer committed Mar 24, 2011 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414  * Store and load selection data in an INI file. * In the above example we would want something like this * in order to store the current selection: \code void MySelectionPlugin::slotSaveSelection(INIFile& _file) { // Iterate over all triangle meshes and save // the selections for all entity types for (PluginFunctions::ObjectIterator o_it(PluginFunctions::ALL_OBJECTS, DataType(DATA_TRIANGLE_MESH)); o_it != PluginFunctions::objectsEnd(); ++o_it) { // Create section for each object // Append object name to section identifier QString section = QString("TriangleMeshSelection") + "//" + o_it->name(); if(!_file.section_exists(section)) { _file.add_section(section); } else { continue; } // Store vertex selection _file.add_entry(section, "VertexSelection", getVertexSelection(o_it->id())); // Store edge selection _file.add_entry(section, "EdgeSelection", getEdgeSelection(o_it->id())); // Store face selection _file.add_entry(section, "FaceSelection", getFaceSelection(o_it->id())); } } \endcode * * This works analogously for loading selections.  Jan Möbius committed Mar 24, 2011 415 416 417 418 419  * @{ */ //=========================================================================== private slots:  Mike Kremer committed Mar 24, 2011 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438  /** \brief Load selection for specific objects in the scene * * OpenFlipper allows for saving of selections in an INI file (implemented by the * different selection plugins by overriding function slotSaveSelection()). * So this slot is called each time such INI file is about to be loaded. * * @param _file The file from which one can read the selection data */ virtual void slotLoadSelection(const INIFile& _file) {}; /** \brief Save selection for all objects in the scene * * Override this slot in order to save selections for a specific data type. * These selections are then stored within an INI file and can be loaded * via slotLoadSelection(). * * @param _file The file into which one can store selection data */ virtual void slotSaveSelection(INIFile& _file) {};  Jan Möbius committed Mar 24, 2011 439 440 441 442 443  /** @} */ //=========================================================================== /** @name Keyboard Interactions  Mike Kremer committed Mar 24, 2011 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481  * * Register keyboard shortcuts for your selection plugin by emitting the registerKeyShortcut() * slot. For example: \code // Select (a)ll, Control + A keys emit registerKeyShortcut(Qt::Key_A, Qt::ControlModifier); // (C)lear selection, C key emit registerKeyShortcut(Qt::Key_C, Qt::NoModifier); \endcode * * Now if the user presses a key, we can handle this by overriding * slotKeyShortcutEvent(). Don't forget to test whether at least one * of the registered primitives is active and whether we want to restrict * to target objects only: \code void MySelectionPlugin::slotKeyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers) { SelectionInterface::PrimitiveType type = 0u; emit getActivePrimitiveType(type); if((type & (vertexType_ | edgeType_ | faceType_)) == 0) { // No supported type is active return; } bool targetsOnly = false; emit targetObjectsOnly(targetsOnly); PluginFunctions::IteratorRestriction restriction = (targetsOnly ? PluginFunctions::TARGET_OBJECTS : PluginFunctions::ALL_OBJECTS); // And so on... } \endcode  Jan Möbius committed Mar 24, 2011 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504  * * @{ */ //=========================================================================== signals: /** \brief Register key shortcut * * This signal is emitted whenever a type selection plugin wants * to provide key shortcuts for its functions. Note that multiple * registration of one key will be possible. Key events will be passed * to ALL type selection plugins that want to listen to key events of this * key, thus, one has to ignore the event if the currently active primitive * type (request via signal getActivePrimitiveType(PrimitiveType&) ) is * not handled by the type selection plugin. * * @param _key Key to register * @param _modifiers Key modifiers (i.e. shift, control, meta keys, defaults to none) */ virtual void registerKeyShortcut(int _key, Qt::KeyboardModifiers _modifiers = Qt::NoModifier) {}; private slots:  Mike Kremer committed Mar 24, 2011 505 506 507 508 509 510 511 512 513 514  /** \brief One of the previously registered keys has been pressed * * This slot is called whenever the user has pressed one of the registered keys. * Note that this is actually handled by the selection base plugin since * the different plugins might want to register the same key multiple times. * * @param _key The pressed key * @param _modifiers Indicates whether mod-keys have been pressed synchronously */ virtual void slotKeyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers) {};  Jan Möbius committed Mar 24, 2011 515 516 517 518 519  /** @} */ //=========================================================================== /** @name User Interface controls  Mike Kremer committed Mar 24, 2011 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578  * * In many cases it is desired to offer selection operations such as "select all vertices" * or "invert edge selection". For this purpose, use the addSelectionOperations() slot. * In our example, we now add some of these functions using the following code: \code QStringList vertexOperations; vertexOperations.append("Select All Vertices"); vertexOperations.append("Invert Vertex Selection"); vertexOperations.append("Delete All Selected Vertices"); emit addSelectionOperations(environmentHandle_, vertexOperations, "Vertex Operations"); \endcode * * These operations will now appear in the selection environment tab of * the selection base plugin: * * \image html selectionOperations.png * * The user can now perform these operations by simply clicking the buttons. * Each time one of the buttons has been pressed, slotSelectionOperation() is called. * You will have to override this in order to provide such operations. * * An example would be: \code void MySelectionPlugin::slotSelectionOperation(QString _operation) { SelectionInterface::PrimitiveType type = 0u; emit getActivePrimitiveType(type); // If none of our primitives is currently active if((type & (vertexType_ | edgeType_ | faceType_)) == 0) return; // Test if operation should be applied to target objects only bool targetsOnly = false; emit targetObjectsOnly(targetsOnly); PluginFunctions::IteratorRestriction restriction = (targetsOnly ? PluginFunctions::TARGET_OBJECTS : PluginFunctions::ALL_OBJECTS); if(_operation == "Select All Vertices") { for (PluginFunctions::ObjectIterator o_it(restriction, DataType(DATA_TRIANGLE_MESH)); o_it != PluginFunctions::objectsEnd(); ++o_it) { if (o_it->visible()) { selectAllVertices(o_it->id()); } // Don't forget this in order to update the render buffers emit updatedObject(o_it->id(), UPDATE_SELECTION); } } // ...and so on... } \endcode  Jan Möbius committed Mar 24, 2011 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601  * * @{ */ //=========================================================================== signals: /** \brief Add non-interactive selection operations for a specific primitive type * * One can add non-interactive selection operations for each primitive type * that will appear as buttons in the selection base toolbar. * An example for this would be "Clear selection", "Invert", "Delete", etc. * If one of this operations is requested, slotSelectionOperation(QString) is * called. These functions are listed in categories which are mainly used * to improve usability. * * @param _handleName The handle of the selection environment in which this operation should be available * @param _operationsList The list of operations that can be performed for a given primitive type * @param _category The category under which the specified operations will be listed * @param _type The primitive type for which the specified operations will be available (0u if operation should always be available) */ virtual void addSelectionOperations(QString _handleName, QStringList _operationsList, QString _category, PrimitiveType _type = 0u) {}; private slots:  Mike Kremer committed Mar 24, 2011 602 603 604 605 606 607 608  /** \brief A specific operation is requested * * This slot is called each time the user has pressed one of the operations * buttons (for the various primitive types) offered in the tool box. * * @param _operation The identifier of the operation just as registered via addSelectionOperations */  Jan Möbius committed Mar 24, 2011 609 610 611 612 613 614 615 616 617 618 619 620  virtual void slotSelectionOperation(QString _operation) {}; /** @} */ //=========================================================================== /** @name Slots which have to be implemented to use the global interaction metaphors * If you enabled selection metaphors for your environment via the * \ref SelectionInterface_enable_metaphors_group "control functions" you will * have to implement the corresponding slots here. These will be * called when the events occur. *  Mike Kremer committed Mar 24, 2011 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651  * Continuing the above example, we should now override the slots for the * metaphors that we have already requested above. For instance, when * using the toggle metaphor, we would want to handle a toggle operation only * if the currently selected primitive type belongs to our plugin: \code void MySelectionPlugin::slotToggleSelection(QPoint _mousePosition, PrimitiveType _currentType, bool _deselect) { // Return if none of the currently active types is handled by this plugin if((_currentType & (vertexType_ | edgeType_ | faceType_)) == 0) return; // Only toggle target objects if requested bool targetsOnly = false; emit targetObjectsOnly(targetsOnly); // Do the picking... // ...and the actual selection if(_currentType & vertexType_) { // Vertex selection } if(_currentType & edgeType_) { // Edge selection } // ...and so on... } \endcode *  Jan Möbius committed Mar 24, 2011 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789  * @{ */ //=========================================================================== private slots: /** \brief Called whenever the user performs a toggle selection * * This has to be implemented by each type selection plugin if this interactive * selection mode should be provided. * * @param _position The 2-D position of the mouse cursor in local screen coordinates * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotToggleSelection(QPoint _position, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a lasso selection * * This has to be implemented by each type selection plugin if this * interactive selection mode should be provided. The metaphor behind it is * that the user draws a polygonal line and all primitives which are visible * get selected. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotLassoSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a volume lasso selection * * This has to be implemented by each type selection plugin if this interactive * selection mode should be provided. The metaphor behind it is * that the user draws a polygonal line and all primitives which are insinde the * volume spanned by the eye position and the polygon get selected. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotVolumeLassoSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a surface lasso selection * * This has to be implemented by each type selection plugin if this * interactive selection mode should be provided. The metaphor behind it is * that the user draws a polygonal line on the surface of an object and * all primitives which are insinde the surface patch defined * by the line get selected. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotSurfaceLassoSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a sphere selection * * This has to be implemented by each type selection plugin if * this interactive selection mode should be provided. The metaphor behind * it is that the user draws the selection with a sphere. All primitives inside * the current sphere get selected. * * @param _position The 2-D position of the mouse cursor * @param _radius The current radius of the selection sphere * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotSphereSelection(QPoint _position, double _radius, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a closest boundary selection * * This has to be implemented by each type selection plugin if * this interactive selection mode should be provided. The metaphor behind * it is that the user clicks on an object and the primitives at the closest boundary * get selected. * * @param _position The 2-D position of the mouse cursor in local screen coordinates * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotClosestBoundarySelection(QPoint _position, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a flood fill selection * * This has to be implemented by each type selection plugin if this interactive selection mode should be provided. * The metaphor behind it is that the user clicks on an object and all primitives close to this point * get selected, if the angle between the clicked point and the next point does not differ more than * the specified angle. * * @param _position The 2-D position of the mouse cursor in local screen coordinates * @param _maxAngle The maximum angle used for flood filling * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotFloodFillSelection(QPoint _position, double _maxAngle, PrimitiveType _currentType, bool _deselect) {}; /** \brief Called whenever the user performs a custom selection * * This has to be implemented by each type selection plugin if this * interactive selection mode should be provided. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void slotCustomSelection(QMouseEvent* _event, PrimitiveType _currentType, QString _customIdentifier, bool _deselect) {}; /** @} */ //=========================================================================== /** @name Signals emitted by the SelectionBasePlugin * * The following signals are emitted by the selection base plugin. * You should not use them! * @{ */ //=========================================================================== signals: /** \brief Emitted by selection base plugin when a non-interactive selection operation is requested * * This connects to slot slotSelectionOperation and is called whenever a non-interactive * selection operation is requested. * * @param _operation The name of the requested operation */ virtual void selectionOperation(QString _operation) {}; /** \brief Emitted by selection base plugin whenever the user performs a toggle selection * * This connects to slotToggleSelection(QPoint,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. *  Dirk Wilden committed Apr 11, 2011 790  * @param _event The mouse event that currently is performed  Jan Möbius committed Mar 24, 2011 791 792 793  * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */  Dirk Wilden committed Apr 11, 2011 794  virtual void toggleSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {};  Jan Möbius committed Mar 24, 2011 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833  /** \brief Emitted by selection base plugin whenever the user performs a lasso selection * * This connects to slotLassoSelection(QMouseEvent*,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void lassoSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {}; /** \brief Emitted by selection base plugin whenever the user performs a volume lasso selection * * This connects to slotVolumeLassoSelection(QMouseEvent*,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void volumeLassoSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {}; /** \brief Emitted by selection base plugin whenever the user performs a surface lasso selection * * This connects to slotSurfaceLassoSelection(QMouseEvent*,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void surfaceLassoSelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {}; /** \brief Emitted by selection base plugin whenever the user performs a sphere selection * * This connects to slotSphereSelection(QPoint,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. *  Dirk Wilden committed Apr 11, 2011 834  * @param _event The mouse event that currently is performed  Jan Möbius committed Mar 24, 2011 835 836 837 838  * @param _radius The current radius of the selection sphere * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */  Dirk Wilden committed Apr 11, 2011 839  virtual void sphereSelection(QMouseEvent* _event, double _radius, PrimitiveType _currentType, bool _deselect) {};  Jan Möbius committed Mar 24, 2011 840 841 842 843 844 845  /** \brief Emitted by selection base plugin whenever the user performs a closest boundary selection * * This connects to slotClosestBoundarySelection(QPoint,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. *  Dirk Wilden committed Apr 11, 2011 846  * @param _event The mouse event that currently is performed  Jan Möbius committed Mar 24, 2011 847 848 849  * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */  Dirk Wilden committed Apr 11, 2011 850  virtual void closestBoundarySelection(QMouseEvent* _event, PrimitiveType _currentType, bool _deselect) {};  Jan Möbius committed Mar 24, 2011 851 852 853 854 855 856  /** \brief Emitted by selection base plugin whenever the user performs a flood fill selection * * This connects to slotFloodFillSelection(QPoint,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. *  Dirk Wilden committed Apr 11, 2011 857  * @param _event The mouse event that currently is performed  Jan Möbius committed Mar 24, 2011 858 859 860 861  * @param _maxAngle The maximum angle used for flood filling * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */  Dirk Wilden committed Apr 11, 2011 862  virtual void floodFillSelection(QMouseEvent* _event, double _maxAngle, PrimitiveType _currentType, bool _deselect) {};  Jan Möbius committed Mar 24, 2011 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990  /** \brief Emitted by selection base plugin whenever the user performs a custom selection * * This connects to slotCustomSelection(QMouseEvent*,QString) which has to be implemented * by each type selection plugin if this interactive selection mode should be provided. * * @param _event The mouse event that currently is performed * @param _currentType The currently active primitive type * @param _deselect True if entities should be deselected */ virtual void customSelection(QMouseEvent* _event, PrimitiveType _currentType, QString _customIdentifier, bool _deselect) {}; /** \brief Load selections from ini-file * * This signal is emitted by SelectionBase-Plugin each time a selection * should be read from a file. This ini-file handle is then passed * to each object type selection plugin where object specific * selections can be extracted. * * @param _file The ini-file handle */ virtual void loadSelection(const INIFile& _file) {}; /** \brief Save selections into ini-file * * This signal is emitted by SelectionBase-Plugin each time a selection * should be written into a file. This ini-file handle is then passed * to each object type selection plugin where object specific * selections can be saved. * * @param _file The ini-file handle */ virtual void saveSelection(INIFile& _file) {}; /** \brief Key shortcut event happened * * Emitted by selection base plugin whenever a registered key shortcut has been pressed. * * @param _key Key to register * @param _modifiers Key modifiers (i.e. shift, control, meta keys, defaults to none) */ virtual void keyShortcutEvent(int _key, Qt::KeyboardModifiers _modifiers = Qt::NoModifier) {}; /** @} */ //=========================================================================== /** @name Slots handled by the SelectionBasePlugin * * The following slots are implemented by the selection base plugin. * You should not use them! * @{ */ //=========================================================================== private slots: virtual void slotAddSelectionEnvironment(QString _modeName, QString _description, QIcon _icon, QString& _handleName) {}; virtual void slotRegisterType(QString _handleName, DataType _type) {}; virtual void slotAddPrimitiveType(QString _handleName, QString _name, QIcon _icon, PrimitiveType& _typeHandle) {}; virtual void slotAddCustomSelectionMode(QString _handleName, QString _modeName, QString _description, QIcon _icon, PrimitiveType _associatedTypes, QString& _customIdentifier) {}; virtual void slotShowToggleSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotShowLassoSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotShowVolumeLassoSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotShowSurfaceLassoSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotShowSphereSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotShowClosestBoundarySelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotShowFloodFillSelectionMode(QString _handleName, bool _show, PrimitiveType _associatedTypes) {}; virtual void slotRegisterKeyShortcut(int _key, Qt::KeyboardModifiers _modifiers) {}; virtual void slotGetActiveDataTypes(TypeList& _types) {}; virtual void slotGetActivePrimitiveType(PrimitiveType& _type) {}; virtual void slotTargetObjectsOnly(bool& _targetsOnly) {}; virtual void slotAddSelectionOperations(QString _handleName, QStringList _operationsList, QString _category, PrimitiveType _type) {}; /** @} */ }; /** \page selectionInterfacePage Selection Interface \image html SelectionInterface.png The SelectionInterface can be used to provide selection functions. Selection works as follows. OpenFlipper basically contains the SelectionBasePlugin which offers some graphical tools (such as selection sphere, lasso tools, etc.) that can be used for selecting entities. Now each object type (poly/triangle meshes, skeletons, splines, whatever) has to implement its own selection functionality. Say we wanted to implement selection for poly/tri mesh objects. For this purpose we derive a plugin from SelectionInterface and create a new selection environment via the addSelectionEnvironment() signal, naming it e.g. "Mesh Object Selection". After having created the necessary selection environment, we have to register our specific data type, that is tell the SelectionBase plugin which data types will be handled (selected) by our plugin. In the example from above we would register DATA_POLY_MESH as well as DATA_TRIANGLE_MESH. We do this by calling the signal registerType(). Now we have to determine which primitive type should be selectable. For poly/tri meshes we would determine vertices, edges, halfedges and faces to be selectable. This is performed via emission of the signal addPrimitiveType(). We can then choose which of the default selection tools should be available for this environment. We could, for example, request the toggle, flood fill and the sphere selection tool by calling the signals showToggleSelectionMode(), and so on. Additionally, it's possible to create custom selection tools that can be completely different from the default ones. After having requested the desired selection tools, each time a selection tool has been used, the appropriate slot is called for further processing, that is the actual selection of the primitives. SelectionInterface also provides means to add operations for a specific primitive type (such as, for example, "Clear Vertex Selection" or "Select All Vertices" for vertex selections). We can tell SelectionBase to add there operations by emitting addSelectionOperations(). Each time an operation button has been clicked, slot slotSelectionOperation() is called. The overall idea is to separate the UI and control elements from actual implementations of selection functionality for a specific data type. So, in general SelectionBase manages all UI control elements and and the rendering of the selection tools whereas the specific type selection plugins manage the real selection of their entities as well as scripting functions. */ Q_DECLARE_INTERFACE(SelectionInterface,"OpenFlipper.SelectionInterface/1.0") #endif // SELECTIONINTERFACE_HH