JAL-147 ViewportRanges calculate wrapped vertical scroll position

[jalview.git] / test / jalview / viewmodel / ViewportRangesTest.java

diff --git a/test/jalview/viewmodel/ViewportRangesTest.java b/test/jalview/viewmodel/ViewportRangesTest.java
index 9c0d41b..4c93d71 100644 (file)
--- a/test/jalview/viewmodel/ViewportRangesTest.java
+++ b/test/jalview/viewmodel/ViewportRangesTest.java
@@ -23,12 +23,16 @@ public class ViewportRangesTest {
 
   AlignmentI al = gen.generate(20, 30, 1, 5, 5);
 
-  @BeforeMethod
+  AlignmentI smallAl = gen.generate(7, 2, 2, 5, 5);
+
+  @BeforeMethod(alwaysRun = true)
   public void cleanUp()
   {
     ColumnSelection sel = new ColumnSelection();
     al.getHiddenColumns().revealAllHiddenColumns(sel);
     al.getHiddenSequences().showAll(null);
+    smallAl.getHiddenColumns().revealAllHiddenColumns(sel);
+    smallAl.getHiddenSequences().showAll(null);
   }
 
   @Test(groups = { "Functional" })
@@ -126,7 +130,17 @@ public class ViewportRangesTest {
     assertEquals(vr.getEndRes(), 19);
 
     vr.setStartEndRes(al.getWidth(), al.getWidth());
-    assertEquals(vr.getEndRes(), al.getWidth());
+    assertEquals(vr.getEndRes(), al.getWidth() - 1);
+
+    ViewportRanges vrsmall = new ViewportRanges(smallAl);
+    vrsmall.setStartEndRes(al.getWidth(), al.getWidth());
+    assertEquals(vrsmall.getEndRes(), 6);
+
+    // make visible alignment width = 0
+    smallAl.getHiddenColumns().hideColumns(0, 6);
+    vrsmall.setStartEndRes(0, 4);
+    assertEquals(vrsmall.getStartRes(), 0);
+    assertEquals(vrsmall.getEndRes(), 0);
   }
 
   @Test(groups = { "Functional" })
@@ -143,6 +157,14 @@ public class ViewportRangesTest {
 
     vr.setStartEndSeq(al.getHeight(), al.getHeight());
     assertEquals(vr.getEndSeq(), al.getHeight() - 1);
+
+    // make visible alignment height = 0
+    smallAl.getHiddenSequences().hideSequence(smallAl.getSequenceAt(0));
+    smallAl.getHiddenSequences().hideSequence(smallAl.getSequenceAt(0));
+    ViewportRanges vrsmall = new ViewportRanges(smallAl);
+    vrsmall.setStartEndSeq(0, 3);
+    assertEquals(vrsmall.getStartSeq(), 0);
+    assertEquals(vrsmall.getEndSeq(), 0);
   }
 
   @Test(groups = { "Functional" })
@@ -196,7 +218,13 @@ public class ViewportRangesTest {
     // reset out of bounds start values to within bounds
     vr.setViewportStartAndWidth(35, 5);
     assertEquals(vr.getViewportWidth(), 5);
-    assertEquals(vr.getStartRes(), 20);
+    assertEquals(vr.getStartRes(), 16);
+
+    // small alignment doesn't get bounds reset
+    ViewportRanges vrsmall = new ViewportRanges(smallAl);
+    vrsmall.setViewportStartAndWidth(0, 63);
+    assertEquals(vrsmall.getViewportWidth(), 7);
+    assertEquals(vrsmall.getStartRes(), 0);
   }
 
   @Test(groups = { "Functional" })
@@ -283,12 +311,12 @@ public class ViewportRangesTest {
     vr.scrollRight(false);
     assertEquals(vr.getStartRes(), 0);
 
-    vr.setViewportStartAndWidth(19, 5);
+    vr.setViewportStartAndWidth(15, 5);
     vr.scrollRight(true);
-    assertEquals(vr.getStartRes(), 20);
+    assertEquals(vr.getStartRes(), 16);
     // can't scroll right past end
     vr.scrollRight(true);
-    assertEquals(vr.getStartRes(), 20);
+    assertEquals(vr.getStartRes(), 16);
   }
 
   @Test(groups = { "Functional" })
@@ -298,7 +326,7 @@ public class ViewportRangesTest {
 
     // hide last 2 columns
     HiddenColumns cols = new HiddenColumns();
-    cols.hideColumns(18, 19);
+    cols.hideColumns(19, 20);
     al.setHiddenColumns(cols);
 
     vr.setViewportStartAndWidth(1, 5);
@@ -308,12 +336,12 @@ public class ViewportRangesTest {
     vr.scrollRight(false);
     assertEquals(vr.getStartRes(), 0);
 
-    vr.setViewportStartAndWidth(19, 5);
+    vr.setViewportStartAndWidth(13, 5);
     vr.scrollRight(true);
-    assertEquals(vr.getStartRes(), 18);
+    assertEquals(vr.getStartRes(), 14);
     // can't scroll right past last visible col
     vr.scrollRight(true);
-    assertEquals(vr.getStartRes(), 18);
+    assertEquals(vr.getStartRes(), 14);
   }
 
   @Test(groups = { "Functional" })
@@ -495,6 +523,39 @@ public class ViewportRangesTest {
     assertTrue(l.verify(1, Arrays.asList("startres")));
     l.reset();
   }
+
+  @Test(groups = { "Functional" })
+  public void testGetWrappedScrollPosition()
+  {
+    AlignmentI al2 = gen.generate(157, 15, 1, 5, 5);
+    ViewportRanges vr = new ViewportRanges(al2);
+    vr.setStartEndRes(0, 39);
+    int width = vr.getViewportWidth(); // 40
+
+    /*
+     * scroll is 0 at column 0 (only)
+     */
+    assertEquals(vr.getWrappedScrollPosition(0), 0);
+
+    /*
+     * scroll is 1 at columns 1-40
+     */
+    int i = 1;
+    int j = width;
+    for (; i <= j; i++)
+    {
+      assertEquals(1, vr.getWrappedScrollPosition(i));
+    }
+
+    /*
+     * scroll is 2 at columns 41-80, etc
+     */
+    j += width;
+    for (; i <= j; i++)
+    {
+      assertEquals(2, vr.getWrappedScrollPosition(i), "For " + i);
+    }
+  }
 }
 
 // mock listener for property change events