Examples of org.geomajas.gwt.client.map.event.MapViewChangedEvent

Package org.geomajas.gwt.client.map.event

Examples of org.geomajas.gwt.client.map.event.MapViewChangedEvent

org.geomajas.gwt.client.map.event.MapViewChangedEvent
Custom defined event that is triggered every time the view on a map changes. This can be due to zooming in or panning. This event contains the new bounding box and scale. @author Pieter De Graef @since 1.6.0

    mapView.addMapViewChangedHandler(this);
  }


  public void onMapViewChanged(MapViewChangedEvent event) {
    if (active) {
      MapViewChangedEvent peek = previous.peek();
      if ((null != peek && sameEvent(event, peek)) || event.isPanDragging()) {
        return;
      }
      previous.addFirst(event);
      while (previous.size() > MAX_STACK_SIZE) {

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  public void zoomNext() {
    if (hasNext()) {
      if (zoomPrevious != null && zoomPrevious.isDisabled()) {
        zoomPrevious.setDisabled(false);
      }
      MapViewChangedEvent data = next.remove();
      previous.addFirst(data);
      active = false;
      mapView.applyBounds(data.getBounds(), MapView.ZoomOption.LEVEL_CLOSEST);
      if (zoomNext != null && !hasNext()) {
        zoomNext.setDisabled(true);
      }
    }
  }

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    if (hasPrevious()) {
      if (zoomNext != null && zoomNext.isDisabled()) {
        zoomNext.setDisabled(false);
      }
      next.addFirst(previous.remove());
      MapViewChangedEvent data = previous.peek();
      active = false;
      mapView.applyBounds(data.getBounds(), MapView.ZoomOption.LEVEL_CLOSEST);
      if (zoomPrevious != null && !hasPrevious()) {
        zoomPrevious.setDisabled(true);
      }
    }
  }

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  /** Fire an event. */
  private void fireEvent(boolean resized, ZoomOption option) {
    // keep old semantics of sameScaleLevel for api compatibility !
    boolean sameScale = lastViewState != null && viewState.isPannableFrom(lastViewState);
    handlerManager.fireEvent(new MapViewChangedEvent(getBounds(), getCurrentScale(), sameScale, viewState
        .isPanDragging(), resized, option));
  }

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    public void onMapViewChanged(MapViewChangedEvent event) {
      actualEvents.add(event);
    }


    public void expect(Bbox bounds, double scale, boolean panning) {
      MapViewChangedEvent event = new MapViewChangedEvent(bounds, scale, panning, false, false, null);
      expectedEvents.add(event);
    }

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    }


    public void validate() {
      for (MapViewChangedEvent expected : expectedEvents) {
        Assert.assertFalse("Expected event " + expected + " but got nothing", actualEvents.isEmpty());
        MapViewChangedEvent actual = actualEvents.remove(0);
        Assert.assertEquals(expected.getScale(), actual.getScale(), delta);
        Assert.assertTrue("Expected " + expected.getBounds() + " but was " + actual.getBounds()
            + " for precision " + (delta), expected.getBounds().equals(actual.getBounds(), delta));
        Assert.assertEquals(expected.isSameScaleLevel(), actual.isSameScaleLevel());
      }
      Assert.assertTrue(actualEvents.size() + " unexpected events", actualEvents.isEmpty());
    }

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Related Classes of org.geomajas.gwt.client.map.event.MapViewChangedEvent

org.geomajas.gwt.client.action.toolbar.ZoomQueue

org.geomajas.gwt.client.map.MapView

org.geomajas.gwt.client.map.MapViewTest$CaptureHandler

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