Tulip  5.2.0
Large graphs analysis and drawing
MouseInteractors.h
1 /*
2  *
3  * This file is part of Tulip (http://tulip.labri.fr)
4  *
5  * Authors: David Auber and the Tulip development Team
6  * from LaBRI, University of Bordeaux
7  *
8  * Tulip is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU Lesser General Public License
10  * as published by the Free Software Foundation, either version 3
11  * of the License, or (at your option) any later version.
12  *
13  * Tulip is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  * See the GNU General Public License for more details.
17  *
18  */
19 ///@cond DOXYGEN_HIDDEN
20 
21 #ifndef MOUSEOBJECT_H
22 #define MOUSEOBJECT_H
23 
24 #include <tulip/InteractorComposite.h>
25 #include <tulip/Camera.h>
26 #include <tulip/GlScene.h>
27 
28 namespace tlp {
29 class GlMainWidget;
30 class NodeLinkDiagramComponent;
31 
32 /** An interactor class allowing to zoom and pan using the mouse wheel.
33  */
34 class TLP_QT_SCOPE MousePanNZoomNavigator : public InteractorComponent {
35 public:
36  MousePanNZoomNavigator() : cameraScaleFactor(1), isGesturing(false) {}
37  ~MousePanNZoomNavigator() override {}
38  bool eventFilter(QObject *, QEvent *) override;
39 
40 protected:
41  float cameraScaleFactor;
42  bool isGesturing;
43 };
44 
45 /** An interactor class used to delete a graph element on mouse left click
46  */
47 class TLP_QT_SCOPE MouseElementDeleter : public InteractorComponent {
48 public:
49  MouseElementDeleter() : glMainWidget(nullptr) {}
50  ~MouseElementDeleter() override {}
51  bool eventFilter(QObject *, QEvent *) override;
52  void clear() override;
53  virtual void delElement(tlp::Graph *graph, tlp::SelectedEntity &selectedEntity);
54 
55 private:
56  GlMainWidget *glMainWidget;
57 };
58 
59 /** An interactor class to translate/rotate using keys or mouse movements,
60  or to zoom and pan using the mouse wheel or
61  */
62 class TLP_QT_SCOPE MouseNKeysNavigator : public MousePanNZoomNavigator {
63 private:
64  InteractorComponent *currentSpecInteractorComponent;
65 
66  QCursor oldCursor;
67 
68 public:
69  MouseNKeysNavigator() : currentSpecInteractorComponent(nullptr), nldc(nullptr) {}
70  ~MouseNKeysNavigator() override {}
71  bool eventFilter(QObject *, QEvent *) override;
72  void clear() override;
73  void viewChanged(tlp::View *view) override;
74 
75 private:
76  // member below are to manage meta node navigation
77  tlp::NodeLinkDiagramComponent *nldc;
78  std::vector<tlp::Graph *> graphHierarchy;
79  std::vector<tlp::Camera> cameraHierarchy;
80  std::vector<tlp::node> nodeHierarchy;
81  std::vector<float> alphaHierarchy;
82 };
83 }
84 #endif
85 ///@endcond
View plugins provide a way to dynamically add to a Tulip plateform various ways to visualize a graph...
Definition: View.h:90
Structure to store selected entities.
Definition: GlScene.h:48