}
}
}
+
+ @Test(groups = { "Functional" })
+ public void testScrollUp_wrapped()
+ {
+ /*
+ * alignment 30 tall and 45 wide
+ */
+ AlignmentI al2 = gen.generate(45, 30, 1, 0, 5);
+
+ /*
+ * wrapped view, 5 sequences high, start at sequence offset 1
+ */
+ ViewportRanges vr = new ViewportRanges(al2);
+ vr.setWrappedMode(true);
+ vr.setViewportStartAndHeight(1, 5);
+
+ /*
+ * offset wrapped view to column 3
+ */
+ vr.setStartEndRes(3, 22);
+
+ int startRes = vr.getStartRes();
+ int width = vr.getViewportWidth();
+ assertEquals(startRes, 3);
+ assertEquals(width, 20);
+
+ // in wrapped mode, we change startRes but not startSeq
+ // scroll down:
+ vr.scrollUp(false);
+ assertEquals(vr.getStartSeq(), 1);
+ assertEquals(vr.getStartRes(), 23);
+
+ // scroll up returns to original position
+ vr.scrollUp(true);
+ assertEquals(vr.getStartSeq(), 1);
+ assertEquals(vr.getStartRes(), 3);
+
+ // scroll up again returns to 'origin'
+ vr.scrollUp(true);
+ assertEquals(vr.getStartSeq(), 1);
+ assertEquals(vr.getStartRes(), 0);
+
+ /*
+ * offset 3 columns once more and do some scroll downs
+ */
+ vr.setStartEndRes(3, 22);
+ vr.scrollUp(false);
+ assertEquals(vr.getStartSeq(), 1);
+ assertEquals(vr.getStartRes(), 23);
+ vr.scrollUp(false);
+ assertEquals(vr.getStartSeq(), 1);
+ assertEquals(vr.getStartRes(), 43);
+
+ /*
+ * scroll down beyond end of alignment does nothing
+ */
+ vr.scrollUp(false);
+ assertEquals(vr.getStartSeq(), 1);
+ assertEquals(vr.getStartRes(), 43);
+ }
}
// mock listener for property change events