@Test
public void testSocketPreview() {
SocketHint<Number> sh = SocketHints.createNumberSocketHint("foo", 0);
OutputSocket<Number> socket = new OutputSocketImpl<>(eventBus, sh);
final boolean[] handled = new boolean[] {false};
Object eventHandler =
new Object() {
@SuppressFBWarnings(
value = "UMAC_UNCALLABLE_METHOD_OF_ANONYMOUS_CLASS",
justification = "This method is called by Guava's EventBus")
@Subscribe
public void onSocketPreviewed(SocketPreviewChangedEvent e) {
handled[0] = true;
assertTrue(
"A preview event fired for a socket but the socket was not labeled as able to "
+ "be previewed",
socket.isPreviewed());
}
};
eventBus.register(eventHandler);
socket.setPreviewed(true);
eventBus.unregister(eventHandler);
assertTrue("SocketPreviewChangedEvent was not received", handled[0]);
}
@Override
@SuppressWarnings("unchecked")
public void perform(InputSocket<?>[] inputs, OutputSocket<?>[] outputs, Optional<?> data) {
final Mat input = ((InputSocket<Mat>) inputs[0]).getValue().get();
final Mat tmp = ((Optional<Mat>) data).get();
final boolean externalOnly = ((InputSocket<Boolean>) inputs[1]).getValue().get();
if (input.empty()) {
return;
}
// findContours modifies its input, so we pass it a temporary copy of the input image
input.copyTo(tmp);
// OpenCV has a few different things it can return from findContours, but for now we only use
// EXTERNAL and LIST.
// The other ones involve hierarchies of contours, which might be useful in some situations, but
// probably only
// when processing the contours manually in code (so, not in a graphical pipeline).
MatVector contours = new MatVector();
findContours(
tmp, contours, externalOnly ? CV_RETR_EXTERNAL : CV_RETR_LIST, CV_CHAIN_APPROX_TC89_KCOS);
final OutputSocket<ContoursReport> contoursSocket = (OutputSocket<ContoursReport>) outputs[0];
contoursSocket.setValue(new ContoursReport(contours, input.rows(), input.cols()));
}
@Test
public void testSocketChangedEvent() throws Exception {
final boolean[] handled = new boolean[] {false};
final Double[] value = new Double[] {0.0};
Object eventHandler =
new Object() {
@SuppressFBWarnings(
value = "UMAC_UNCALLABLE_METHOD_OF_ANONYMOUS_CLASS",
justification = "This method is called by Guava's EventBus")
@Subscribe
public void onSocketChanged(SocketChangedEvent e) {
handled[0] = true;
value[0] = (Double) socket.getValue().get();
}
};
eventBus.register(eventHandler);
socket.setValue(TEST_VALUE);
eventBus.unregister(eventHandler);
assertTrue(handled[0]);
assertEquals(TEST_VALUE, value[0]);
}
@Test
public void testDefaultValue() throws Exception {
sh = SocketHints.Inputs.createNumberSliderSocketHint("foo", TEST_VALUE, 0.0, 1.0);
socket = new OutputSocketImpl<>(eventBus, sh);
assertEquals(TEST_VALUE, socket.getValue().get());
}
@Test
public void testSetValue() throws Exception {
socket.setValue(TEST_VALUE);
assertEquals(TEST_VALUE, socket.getValue().get());
}
@Test
public void testGetSocketHint() throws Exception {
assertEquals("foo", socket.getSocketHint().getIdentifier());
assertEquals(Number.class, socket.getSocketHint().getType());
assertEquals(SocketHint.View.SLIDER, socket.getSocketHint().getView());
}