CustusX  16.5
An IGT application
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cxTrackPadWidget.cpp
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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32 #include "cxTrackPadWidget.h"
33 
34 #include <QVBoxLayout>
35 #include <QScrollBar>
36 #include <QTouchEvent>
37 
38 #include <QAction>
39 #include <QRadialGradient>
40 #include "vtkRenderer.h"
41 #include "vtkCamera.h"
42 #include "vtkSmartPointer.h"
43 #include "cxDataInterface.h"
44 #include "cxCameraControl.h"
45 #include "cxBoundingBox3D.h"
46 #include "cxView.h"
47 #include "cxViewService.h"
48 
49 //TODO: remove
50 #include "cxLegacySingletons.h"
51 
52 namespace cx
53 {
54 
58 
60  BaseWidget(parent, "TrackPadWidget", "Camera Control")
61 {
62  this->setToolTip("Track pad camera control");
63  mCameraControl = viewService()->getCameraControl();
64 
65  mMinPadSize = QSize(50,50);
66  mMinBarSize = QSize(20,50);
67 
68  mTopLayout = new QVBoxLayout(this);
69 
70  this->createStandard3DViewActions();
71  this->definePanLayout();
72  this->defineRotateLayout();
73 }
74 
75 void TrackPadWidget::createStandard3DViewActions()
76 {
77  QActionGroup* group = mCameraControl->createStandard3DViewActions();
78 
79  QToolBar* toolBar = new QToolBar(this);
80  mTopLayout->addWidget(toolBar);
81  toolBar->addActions(group->actions());
82  toolBar->addSeparator();
83 }
84 
85 void TrackPadWidget::defineRotateLayout()
86 {
87  QGroupBox* group = new QGroupBox("rotate", this);
88  group->setFlat(true);
89  mTopLayout->addWidget(group);
90 
91  QHBoxLayout* layout = new QHBoxLayout;
92  layout->setMargin(4);
93  group->setLayout(layout);
94 
95  MousePadWidget* rotateWidget = new MousePadWidget(this, mMinPadSize);
96  connect(rotateWidget, SIGNAL(mouseMoved(QPointF)), this, SLOT(rotateXZSlot(QPointF)));
97  layout->addWidget(rotateWidget, 4);
98 
99  MousePadWidget* rotateYWidget = new MousePadWidget(this, mMinBarSize);
100  rotateYWidget->setFixedXPos(true);
101  connect(rotateYWidget, SIGNAL(mouseMoved(QPointF)), this, SLOT(rotateYSlot(QPointF)));
102  layout->addWidget(rotateYWidget, 1);
103 }
104 
105 
106 void TrackPadWidget::definePanLayout()
107 {
108  QGroupBox* group = new QGroupBox("pan", this);
109  group->setFlat(true);
110  mTopLayout->addWidget(group);
111 
112  QHBoxLayout* panLayout = new QHBoxLayout;
113  panLayout->setMargin(4);
114  group->setLayout(panLayout);
115 
116  MousePadWidget* panWidget = new MousePadWidget(this, mMinPadSize);
117  connect(panWidget, SIGNAL(mouseMoved(QPointF)), this, SLOT(panXZSlot(QPointF)));
118  panLayout->addWidget(panWidget, 4);
119 
120  MousePadWidget* dollyWidget = new MousePadWidget(this, mMinBarSize);
121  dollyWidget->setFixedXPos(true);
122  connect(dollyWidget, SIGNAL(mouseMoved(QPointF)), this, SLOT(dollySlot(QPointF)));
123  panLayout->addWidget(dollyWidget, 1);
124 }
125 
126 vtkCameraPtr TrackPadWidget::getCamera() const
127 {
128  return viewService()->get3DView()->getRenderer()->GetActiveCamera();
129 }
130 
131 void TrackPadWidget::rotateYSlot(QPointF delta)
132 {
133  double scale = 180;
134  double factor = scale * delta.y();
135 
136  this->getCamera()->Roll(factor);
137 }
138 
139 void TrackPadWidget::rotateXZSlot(QPointF delta)
140 {
141  vtkCameraPtr camera = this->getCamera();
142  double scale = 180;
143 
144  camera->Azimuth(-scale * delta.x());
145  camera->Elevation(scale * delta.y());
146  camera->OrthogonalizeViewUp(); // needed when using azimuth, according to docs (failure to do this causes strange zooming effects)
147 }
148 
149 void TrackPadWidget::dollySlot(QPointF delta)
150 {
151  double factor = 1 + delta.y();
152  this->getCamera()->Dolly(factor);
153  viewService()->get3DView()->getRenderer()->ResetCameraClippingRange();
154 }
155 
156 void TrackPadWidget::panXZSlot(QPointF delta)
157 {
158  vtkCameraPtr camera = this->getCamera();
159  Vector3D position(camera->GetPosition());
160  Vector3D focus(camera->GetFocalPoint());
161  Vector3D vup(camera->GetViewUp());
162 
163  Vector3D e_x = cross(focus-position, vup).normal();
164  Vector3D e_y = vup.normal();
165 
166  DoubleBoundingBox3D bb(viewService()->get3DView()->getRenderer()->ComputeVisiblePropBounds());
167 
168  double volSize = bb.range().length() / pow(3, 1.0/3.0); // mm size of volume
169  double scale = volSize;
170  Vector3D t = scale * (-delta.x() * e_x + delta.y() * e_y);
171 
172  position += t;
173  focus += t;
174 
175  camera->SetPosition(position.begin());
176  camera->SetFocalPoint(focus.begin());
177 }
178 
180 {
181 }
182 
183 void TrackPadWidget::showEvent(QShowEvent* event)
184 {
185  QWidget::showEvent(event);
186 }
187 
188 void TrackPadWidget::hideEvent(QCloseEvent* event)
189 {
190  QWidget::closeEvent(event);
191 }
192 
193 
194 }//end namespace cx
TrackPadWidget(QWidget *parent)
void rotateYSlot(QPointF delta)
void rotateXZSlot(QPointF delta)
Vector3D cross(const Vector3D &a, const Vector3D &b)
compute cross product of a and b.
Definition: cxVector3D.cpp:62
Representation of a floating-point bounding box in 3D. The data are stored as {xmin,xmax,ymin,ymax,zmin,zmax}, in order to simplify communication with vtk.
void panXZSlot(QPointF delta)
virtual void showEvent(QShowEvent *event)
updates internal info before showing the widget
Eigen::Vector3d Vector3D
Vector3D is a representation of a point or vector in 3D.
Definition: cxVector3D.h:63
Interface for QWidget which handles widgets uniformly for the system.
Definition: cxBaseWidget.h:108
cxLogicManager_EXPORT ViewServicePtr viewService()
void dollySlot(QPointF delta)
vtkSmartPointer< class vtkCamera > vtkCameraPtr
virtual void hideEvent(QCloseEvent *event)
disconnects stuff