Package edu.umd.cs.piccolo

Examples of edu.umd.cs.piccolo.PCamera

180
181
182
183
184
185
186
187
188
189
190
191
192
193
   * The mouse wheel is used to zoom in and out of the viewport and center on
   * the (x,y) position the mouse is currently on.
   */
  @Override
  public void mouseWheelRotated(PInputEvent e) {
    PCamera lc = svWindow.canvas.getCamera();
    double sf = SVWindow.SCALING_FACTOR;

    if (e.getWheelRotation() < 0) {
      sf = 1 / sf;
    }
    lc.scaleViewAboutPoint(lc.getScale() / sf, e.getPosition().getX(), e
        .getPosition().getY());
  }
View Full Code Here
261
262
263
264
265
266
267
268
269
270
271
272
    // Add a Scrollpane to be able to scroll within the canvas
    PScrollPane scrollPane = new PScrollPane(canvas);
    getContentPane().add(scrollPane);
    scrollPane.setWheelScrollingEnabled(false);
    PCamera lc = canvas.getCamera();
    lc.scaleViewAboutPoint(initialScalingfactor, 0, 0);

    // Disable the default event handlers and add our own.
    addWindowListener(svEventHandler);
    canvas.removeInputEventListener(canvas.getPanEventHandler());
    canvas.removeInputEventListener(canvas.getZoomEventHandler());
View Full Code Here
456
457
458
459
460
461
462
463
464
465
466
467
      // all the way around.
      int wmargin = width / 2;
      int hmargin = height / 2;
      double scalefactor = Math.min(winSizeX / (2.0 * wmargin + width),
                                    winSizeY / (2.0 * hmargin + height));
      PCamera lc = canvas.getCamera();
      lc.scaleView(scalefactor / lc.getViewScale());
      lc.animateViewToPanToBounds(new Rectangle(x1 - hmargin, y1 - hmargin,
                                                2 * wmargin + width,
                                                2 * hmargin + height), 0);
    }
  }
View Full Code Here
19
20
21
22
23
24
25
26
27
28
29
30
    int rotationAmount = event.getWheelRotation() * -1;

    double scaleDelta = 1 + (0.2 * rotationAmount);

    PCamera camera = event.getCamera();
    double currentScale = camera.getViewScale();
    double newScale = currentScale * scaleDelta;

    if (newScale < WorldSky.MIN_ZOOM_SCALE) {
      scaleDelta = WorldSky.MIN_ZOOM_SCALE / currentScale;
    }
View Full Code Here
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
   */
  protected void dragActivityStep(PInputEvent aEvent) {
    if (!getAutopan())
      return;

    PCamera c = aEvent.getCamera();
    PBounds b = c.getBoundsReference();
    Point2D l = aEvent.getPositionRelativeTo(c);
    int outcode = b.outcode(l);
    PDimension delta = new PDimension();

    if ((outcode & Rectangle.OUT_TOP) != 0) {
      delta.height = validatePanningSpeed(-1.0
          - (0.5 * Math.abs(l.getY() - b.getY())));
    } else if ((outcode & Rectangle.OUT_BOTTOM) != 0) {
      delta.height = validatePanningSpeed(1.0 + (0.5 * Math.abs(l.getY()
          - (b.getY() + b.getHeight()))));
    }

    if ((outcode & Rectangle.OUT_RIGHT) != 0) {
      delta.width = validatePanningSpeed(1.0 + (0.5 * Math.abs(l.getX()
          - (b.getX() + b.getWidth()))));
    } else if ((outcode & Rectangle.OUT_LEFT) != 0) {
      delta.width = validatePanningSpeed(-1.0
          - (0.5 * Math.abs(l.getX() - b.getX())));
    }

    c.localToView(delta);

    if (delta.width != 0 || delta.height != 0) {
      if (isInverted) {
        c.translateView(-1 * delta.width, -1 * delta.height);
      } else {
        c.translateView(delta.width, delta.height);
      }
    }
   
    // Loop through selected objects, compensate for camera panning
    // so that objects will remain stationary relative to cursor
View Full Code Here
TOP

Related Classes of edu.umd.cs.piccolo.PCamera

  • ca.nengo.ui.lib.world.handlers.PanEventHandler
  • ca.nengo.ui.lib.world.handlers.ScrollZoomHandler
  • com.google.scrollview.events.SVEventHandler
  • com.google.scrollview.ui.SVWindow
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.