/**
* Switches views based on the passed enum.
*
* @param v the View to switch to
* @param o A BattleField if switching to BattleView.
*/
public void changeView(Views v, Object o) {
switch (v) {
case PREVIOUS:
CardLayout cl = (CardLayout) body.getLayout();
JPanel temp = currentPanel;
panels.pop();
currentPanel = panels.peek();
cl.show(body, currentPanel.toString());
cl.removeLayoutComponent(temp);
break;
case BATTLE:
currentPanel = new BattleView(this, (BattleField) o);
panels.push(currentPanel);
body.add(currentPanel, v.name());
CardLayout cl1 = (CardLayout) body.getLayout();
cl1.show(body, v.name());
for (Component c : body.getComponents()) {
if (c == currentPanel) {
c.requestFocusInWindow();
}
}
break;
case TITLE:
currentPanel = new TitleView(this);
panels.push(currentPanel);
body.add(currentPanel, v.name());
CardLayout cl2 = (CardLayout) body.getLayout();
cl2.show(body, v.name());
break;
default:
// Do nothing
}
}
// Switches between live and test data
public static void toggleLiveData() {
if (liveData) {
liveData = false;
view.setLines(testLines);
} else {
liveData = true;
update();
view.setLines(liveLines);
// createUpdateTask();
}
}
@Test
public void removeFromParent_whenViewsParentIsNull_shouldPass() throws Exception {
assertThat(subject.getParent()).isNull();
Views.removeFromParent(subject);
// pass
}
@Test
public void testSetHeight() throws Exception {
final View view = new View(RuntimeEnvironment.application);
view.setLayoutParams(new ViewGroup.LayoutParams(25, 50));
assertThat(view.getLayoutParams()).hasHeight(50);
Views.setHeight(view, 500);
assertThat(view.getLayoutParams()).hasHeight(500);
}
@Test
public void removeFromParent_shouldRemoveViewFromParent() throws Exception {
assertThat(parent.getChildCount()).isEqualTo(0);
parent.addView(subject);
assertThat(parent.getChildCount()).isEqualTo(1);
assertThat(subject.getParent()).isEqualTo(parent);
Views.removeFromParent(subject);
assertThat(parent.getChildCount()).isEqualTo(0);
assertThat(subject.getParent()).isNull();
}
@Test
public void removeFromParent_withMultipleChildren_shouldRemoveCorrectChild() throws Exception {
parent.addView(new TextView(context));
assertThat(parent.getChildCount()).isEqualTo(1);
parent.addView(subject);
assertThat(parent.getChildCount()).isEqualTo(2);
Views.removeFromParent(subject);
assertThat(parent.getChildCount()).isEqualTo(1);
assertThat(parent.getChildAt(0)).isInstanceOf(TextView.class);
}
@Test
public void testRoot() throws Exception {
final Activity activity = Robolectric.buildActivity(Activity.class).create().get();
assertThat(Views.root(activity)).isNotNull().hasId(android.R.id.content);
}
// change the return type to Img<FloatType> and adjust the code accordingly
public <T extends RealType<T>> Img<T> gradient(Img<T> img) {
// create a new ImgLib2 image of same dimensions, but FloatType
// to to that, create a new PlanarImgFactory and instantiate a new
// Img<FloatType>
/**
* ImgFactory<T> imgFactory = img.factory(); Img<T> gradientImg = imgFactory.create( img,
* img.firstElement() );
*/
// create a localizing cursor on the GradientImg, it will iterate all pixels
// and is able to efficiently return its position at each pixel, at each
// pixel we will compute the gradient
/** Cursor<T> cursor = gradientImg.localizingCursor(); */
// We extend the input image by a mirroring out of bounds strategy so
// that we can access pixels outside of the image
RandomAccessible<T> view = Views.extendMirrorSingle(img);
// instantiate a RandomAccess on the extended view, it will be used to
// compute the gradient locally at each pixel location
RandomAccess<T> randomAccess = view.randomAccess();
// iterate over all pixels
while (cursor.hasNext()) {
// move the cursor to the next pixel
cursor.fwd();
// compute gradient in each dimension
double gradient = 0;
for (int d = 0; d < img.numDimensions(); ++d) {
// set the randomaccess to the location of the cursor
randomAccess.setPosition(cursor);
// move one pixel back in dimension d
randomAccess.bck(d);
// get the value
double v1 = randomAccess.get().getRealDouble();
// move twice forward in dimension d, i.e.
// one pixel above the location of the cursor
randomAccess.fwd(d);
randomAccess.fwd(d);
// get the value
double v2 = randomAccess.get().getRealDouble();
// add the square of the magnitude of the gradient
gradient += ((v2 - v1) * (v2 - v1)) / 4;
}
// the square root of all quadratic sums yields
// the magnitude of the gradient at this location,
// set the pixel value of the gradient image
// change the value to float, otherwise it will not be
// compatible
cursor.get().setReal(Math.sqrt(gradient));
}
return gradientImg;
}
@Test
public void removeFromParent_whenViewIsNull_shouldPass() throws Exception {
Views.removeFromParent(null);
// pass
}
