/** Tests the computation of the absolute position. */
@Test
public void getAbsolutePosition() {
double u = Math.PI / 180d;
Layout layout = new Layout(null);
Page page = new Page(PageFormat.defaultValue);
layout.addPage(page);
GroupFrame frame = createFrameWithChildren();
page.addFrame(frame);
// frame
Point2f p = frame.getAbsolutePosition();
assertEquals(50, p.x, Delta.DELTA_FLOAT);
assertEquals(75, p.y, Delta.DELTA_FLOAT);
// child frame
GroupFrame child = (GroupFrame) frame.children.get(0);
p = child.getAbsolutePosition();
float r = 30;
double childX = 50 + 20 * Math.cos(r * u) + 10 * Math.sin(r * u);
double childY = 75 - 20 * Math.sin(r * u) + 10 * Math.cos(r * u);
assertEquals(childX, p.x, Delta.DELTA_FLOAT_ROUGH);
assertEquals(childY, p.y, Delta.DELTA_FLOAT_ROUGH);
// child frame of child frame
Frame child2 = child.children.get(0);
p = child2.getAbsolutePosition();
r += 30;
assertEquals(
childX + -15 * Math.cos(r * u) + -10 * Math.sin(r * u), p.x, Delta.DELTA_FLOAT_ROUGH);
assertEquals(
childY - -15 * Math.sin(r * u) + -10 * Math.cos(r * u), p.y, Delta.DELTA_FLOAT_ROUGH);
}
public static GroupFrame createFrameWithChildren() {
// frame
GroupFrame frame = new GroupFrame();
frame.setPosition(new Point2f(50, 75));
frame.setSize(new Size2f(80, 50));
frame.setRotation(30);
// child frame
GroupFrame child = new GroupFrame();
child.setPosition(new Point2f(20, 10));
child.setSize(new Size2f(30, 20));
child.setRotation(30);
// child frame of child frame
TestFrame child2 = new TestFrame();
child2.setPosition(new Point2f(-15, -10));
child2.setSize(new Size2f(5, 5));
child2.setRotation(45);
// hierarchy
child.addChildFrame(child2);
frame.addChildFrame(child);
return frame;
}