1 /*******************************************************************************
2 * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.g3d.vtk.swt;
14 import java.awt.event.InputEvent;
15 import java.awt.event.MouseEvent;
16 import java.util.ArrayList;
17 import java.util.Collection;
18 import java.util.List;
20 import org.eclipse.jface.viewers.ISelection;
21 import org.eclipse.jface.viewers.ISelectionChangedListener;
22 import org.eclipse.jface.viewers.ISelectionProvider;
23 import org.eclipse.jface.viewers.SelectionChangedEvent;
24 import org.eclipse.jface.viewers.StructuredSelection;
25 import org.eclipse.swt.widgets.Display;
26 import org.simantics.g3d.tools.AdaptationUtils;
30 import vtk.vtkRenderWindow;
31 import vtk.vtkRenderer;
33 public class vtkCameraAndSelectorAction extends vtkSwtAction implements ISelectionProvider {
35 protected vtkRenderer ren;
38 protected vtkRenderWindow rw;
39 protected vtkCamera cam;
40 protected int InteractionMode = 1;
42 protected double activeRate = 5.0;
43 protected double passiveRate = 0.01;
44 protected boolean doNotRotate = true;
46 public vtkCameraAndSelectorAction(InteractiveVtkComposite panel) {
48 this.ren = panel.getRenderer();
49 this.rw = panel.getRenderWindow();
50 this.cam = ren.GetActiveCamera();
57 public void UnLock() {
61 public void InteractionModeRotate()
63 this.InteractionMode = 1;
66 public void InteractionModeTranslate()
68 this.InteractionMode = 2;
71 public void InteractionModeZoom()
73 this.InteractionMode = 3;
76 public void resetCameraClippingRange() {
78 ren.ResetCameraClippingRange();
82 public void resetCamera() {
88 public boolean mousePressed(MouseEvent e)
91 if (ren.VisibleActorCount() == 0) return false;
92 rw.SetDesiredUpdateRate(activeRate);
95 if ((e.getModifiers()==InputEvent.BUTTON2_MASK) ||
96 (e.getModifiers()==(InputEvent.BUTTON1_MASK | InputEvent.SHIFT_MASK)))
98 InteractionModeTranslate();
100 else if (e.getModifiers()==InputEvent.BUTTON3_MASK)
102 InteractionModeZoom();
106 InteractionModeRotate();
111 public boolean mouseReleased(MouseEvent e)
113 rw.SetDesiredUpdateRate(passiveRate);
119 public boolean mouseDragged(MouseEvent e)
121 if (ren.VisibleActorCount() == 0) return false;
125 if (this.InteractionMode == 1)
127 cam.Azimuth(lastX - x);
128 cam.Elevation(y - lastY);
131 cam.OrthogonalizeViewUp();
132 resetCameraClippingRange();
133 //panel.UpdateLight();
136 if (this.InteractionMode == 2)
140 double APoint[] = new double[3];
144 // get the current focal point and position
145 FPoint = cam.GetFocalPoint();
146 PPoint = cam.GetPosition();
148 // calculate the focal depth since we'll be using it a lot
149 ren.SetWorldPoint(FPoint[0],FPoint[1],FPoint[2],1.0);
150 ren.WorldToDisplay();
151 focalDepth = ren.GetDisplayPoint()[2];
153 APoint[0] = rw.GetSize()[0]/2.0 + (x - lastX);
154 APoint[1] = rw.GetSize()[1]/2.0 - (y - lastY);
155 APoint[2] = focalDepth;
156 ren.SetDisplayPoint(APoint);
157 ren.DisplayToWorld();
158 RPoint = ren.GetWorldPoint();
159 if (RPoint[3] != 0.0)
161 RPoint[0] = RPoint[0]/RPoint[3];
162 RPoint[1] = RPoint[1]/RPoint[3];
163 RPoint[2] = RPoint[2]/RPoint[3];
167 * Compute a translation vector, moving everything 1/2
168 * the distance to the cursor. (Arbitrary scale factor)
171 (FPoint[0]-RPoint[0])/2.0 + FPoint[0],
172 (FPoint[1]-RPoint[1])/2.0 + FPoint[1],
173 (FPoint[2]-RPoint[2])/2.0 + FPoint[2]);
175 (FPoint[0]-RPoint[0])/2.0 + PPoint[0],
176 (FPoint[1]-RPoint[1])/2.0 + PPoint[1],
177 (FPoint[2]-RPoint[2])/2.0 + PPoint[2]);
178 resetCameraClippingRange();
181 if (this.InteractionMode == 3)
184 //double clippingRange[];
186 zoomFactor = Math.pow(1.02,(y - lastY));
187 if (cam.GetParallelProjection() == 1)
189 cam.SetParallelScale(cam.GetParallelScale()/zoomFactor);
193 cam.Dolly(zoomFactor);
194 resetCameraClippingRange();
204 private List<vtkProp> selectActors = new ArrayList<vtkProp>();
205 private List<vtkProp> hoverActor = new ArrayList<vtkProp>();
208 public boolean mouseClicked(MouseEvent e) {
209 if (!panel.getComponent().isFocusControl())
211 if (e.getButton() != MouseEvent.BUTTON1)
213 vtkProp spick[] = panel.pick(e.getX(), e.getY());
214 if (spick != null && spick.length > 0) {
215 for (vtkProp selectActor : spick) {
216 if (!e.isControlDown()) {
217 selectActors.clear();
218 selectActors.add(selectActor);
220 if (selectActors.contains(selectActor))
221 selectActors.remove(selectActor);
223 selectActors.add(selectActor);
226 fireSelectionChanged();
227 } else if (!e.isControlDown()) {
228 selectActors.clear();
229 fireSelectionChanged();
232 // if (e.getClickCount() > 1)
233 // updatePickRay(e.getX(), e.getY());
237 // private void updatePickRay(double x , double y) {
238 // Ray ray = vtkUtil.createMouseRay(panel.GetRenderer(), x, y);
241 // System.out.println(ray.pos + " " + ray.dir);
242 // vtkPoints linePoints = new vtkPoints();
243 // linePoints.InsertPoint(0,ray.pos.x, ray.pos.y, ray.pos.z);
244 // linePoints.InsertPoint(1, ray.pos.x + ray.dir.x, ray.pos.y + ray.dir.y, ray.pos.z + ray.dir.z);
245 // vtkLine aLine = new vtkLine();
246 // aLine.GetPointIds().SetId(0, 0);
247 // aLine.GetPointIds().SetId(1, 1);
248 // vtkUnstructuredGrid aLineGrid = new vtkUnstructuredGrid();
249 // aLineGrid.Allocate(1, 1);
250 // aLineGrid.InsertNextCell(aLine.GetCellType(), aLine.GetPointIds());
251 // aLineGrid.SetPoints(linePoints);
252 // vtkDataSetMapper aLineMapper = new vtkDataSetMapper();
253 // aLineMapper.SetInput(aLineGrid);
254 // vtkActor aLineActor = new vtkActor();
255 // aLineActor.SetMapper(aLineMapper);
256 // aLineActor.GetProperty().SetDiffuseColor(.2, 1, 1);
258 // if (rayActor != null) {
259 // panel.GetRenderer().RemoveActor(rayActor);
260 // rayActor.Delete();
262 // rayActor = aLineActor;
263 // panel.GetRenderer().AddActor(rayActor);
265 // linePoints.Delete();
267 // aLineGrid.Delete();
268 // aLineMapper.Delete();
272 // private vtkActor rayActor;
275 public boolean mouseMoved(MouseEvent e) {
279 if (!panel.getComponent().isFocusControl())
281 List<vtkProp> prevHover = new ArrayList<vtkProp>();
282 prevHover.addAll(hoverActor);
284 vtkProp pick[] = panel.pick(e.getX(),e.getY());
286 for (vtkProp p : pick)
290 if (!prevHover.containsAll(hoverActor) || !hoverActor.containsAll(prevHover)) {
296 public List<vtkProp> getSelectActor() {
300 public List<vtkProp> getHoverActor() {
304 private List<ISelectionChangedListener> selectionListeners = new ArrayList<ISelectionChangedListener>();
307 public void addSelectionChangedListener(ISelectionChangedListener listener) {
308 selectionListeners.add(listener);
312 public ISelection getSelection() {
313 return new StructuredSelection(selectActors);
317 public void removeSelectionChangedListener(
318 ISelectionChangedListener listener) {
319 selectionListeners.remove(listener);
323 public void setSelection(ISelection selection) {
324 setSelection(selection, false);
328 public void setSelection(ISelection selection, boolean fire) {
329 Collection<vtkProp> selectedProps = AdaptationUtils.adaptToCollection(selection, vtkProp.class);
331 selectActors.clear();
332 selectActors.addAll(selectedProps);
334 fireSelectionChanged();
337 private void fireSelectionChanged() {
338 Display.getDefault().asyncExec(new Runnable() {
342 SelectionChangedEvent evt = new SelectionChangedEvent(vtkCameraAndSelectorAction.this, new StructuredSelection(selectActors));
343 for (ISelectionChangedListener l :selectionListeners) {
344 l.selectionChanged(evt);
352 private List<ISelectionChangedListener> hoverListeners = new ArrayList<ISelectionChangedListener>();
355 public void addHoverChangedListener(ISelectionChangedListener listener) {
356 hoverListeners.add(listener);
360 public ISelection getHoverSelection() {
361 return new StructuredSelection(hoverActor);
364 public void removeHoverChangedListener(
365 ISelectionChangedListener listener) {
366 hoverListeners.remove(listener);
369 private void fireHoverChanged() {
370 Display.getDefault().asyncExec(new Runnable() {
373 StructuredSelection sel = null;
374 if (hoverActor == null)
375 sel = new StructuredSelection();
377 sel = new StructuredSelection(hoverActor);
378 SelectionChangedEvent evt = new SelectionChangedEvent(vtkCameraAndSelectorAction.this, sel);
379 for (ISelectionChangedListener l :hoverListeners) {
380 l.selectionChanged(evt);
387 public void focus(double x, double y, double z) {
389 cam.SetFocalPoint(x, y, z);
392 cam.OrthogonalizeViewUp();
393 resetCameraClippingRange();
394 //panel.UpdateLight();