public static final String STARTRESANDSEQ = "startresandseq";
+ public static final String MOVE_VIEWPORT = "move_viewport";
+
private boolean wrappedMode = false;
// start residue of viewport
}
/**
- * Set start residue and start sequence together (fires single event)
+ * Set start residue and start sequence together (fires single event). The
+ * event supplies a pair of old values and a pair of new values: [old start
+ * residue, old start sequence] and [new start residue, new start sequence]
*
* @param res
* the start residue
*/
public boolean scrollUp(boolean up)
{
+ /*
+ * if in unwrapped mode, scroll up or down one sequence row;
+ * if in wrapped mode, scroll by one visible width of columns
+ */
if (up)
{
- if (startSeq < 1)
+ if (wrappedMode)
{
- return false;
+ pageUp();
+ }
+ else
+ {
+ if (startSeq < 1)
+ {
+ return false;
+ }
+ setStartSeq(startSeq - 1);
}
-
- setStartSeq(startSeq - 1);
}
else
{
- if (endSeq >= getVisibleAlignmentHeight() - 1)
+ if (wrappedMode)
{
- return false;
+ pageDown();
+ }
+ else
+ {
+ if (endSeq >= getVisibleAlignmentHeight() - 1)
+ {
+ return false;
+ }
+ setStartSeq(startSeq + 1);
}
-
- setStartSeq(startSeq + 1);
}
return true;
}
* the startRes changed, else false.
*
* @param res
- * residue position to scroll to
+ * residue position to scroll to NB visible position not absolute
+ * alignment position
* @return
*/
public boolean scrollToWrappedVisible(int res)
{
- int oldStartRes = startRes;
- int width = getViewportWidth();
-
- if (res >= oldStartRes && res < oldStartRes + width)
+ int newStartRes = calcWrappedStartResidue(res);
+ if (newStartRes == startRes)
{
return false;
}
+ setStartRes(newStartRes);
+
+ return true;
+ }
+
+ /**
+ * Calculate wrapped start residue from visible start residue
+ *
+ * @param res
+ * visible start residue
+ * @return left column of panel res will be located in
+ */
+ private int calcWrappedStartResidue(int res)
+ {
+ int oldStartRes = startRes;
+ int width = getViewportWidth();
boolean up = res < oldStartRes;
int widthsToScroll = Math.abs((res - oldStartRes) / width);
{
newStartRes = 0;
}
-
- setStartRes(newStartRes);
-
- return true;
+ return newStartRes;
}
/**
* Scroll so that (x,y) is visible. Fires a property change event.
*
* @param x
- * x position in alignment
+ * x position in alignment (absolute position)
* @param y
- * y position in alignment
+ * y position in alignment (absolute position)
*/
public void scrollToVisible(int x, int y)
{
{
scrollUp(false);
}
-
+
HiddenColumns hidden = al.getHiddenColumns();
- while (x < hidden.adjustForHiddenColumns(startRes))
+ while (x < hidden.visibleToAbsoluteColumn(startRes))
{
if (!scrollRight(false))
{
break;
}
}
- while (x > hidden.adjustForHiddenColumns(endRes))
+ while (x > hidden.visibleToAbsoluteColumn(endRes))
{
if (!scrollRight(true))
{
}
/**
+ * Set the viewport location so that a position is visible
+ *
+ * @param x
+ * column to be visible: absolute position in alignment
+ * @param y
+ * row to be visible: absolute position in alignment
+ */
+ public boolean setViewportLocation(int x, int y)
+ {
+ boolean changedLocation = false;
+
+ // convert the x,y location to visible coordinates
+ int visX = al.getHiddenColumns().absoluteToVisibleColumn(x);
+ int visY = al.getHiddenSequences().findIndexWithoutHiddenSeqs(y);
+
+ // if (vis_x,vis_y) is already visible don't do anything
+ if (startRes > visX || visX > endRes
+ || startSeq > visY && visY > endSeq)
+ {
+ int[] old = new int[] { startRes, startSeq };
+ int[] newresseq;
+ if (wrappedMode)
+ {
+ int newstartres = calcWrappedStartResidue(visX);
+ setStartRes(newstartres);
+ newresseq = new int[] { startRes, startSeq };
+ }
+ else
+ {
+ // set the viewport x location to contain vis_x
+ int newstartres = visX;
+ int width = getViewportWidth();
+ if (newstartres + width - 1 > getVisibleAlignmentWidth() - 1)
+ {
+ newstartres = getVisibleAlignmentWidth() - width;
+ }
+ updateStartEndRes(newstartres, newstartres + width - 1);
+
+ // set the viewport y location to contain vis_y
+ int newstartseq = visY;
+ int height = getViewportHeight();
+ if (newstartseq + height - 1 > getVisibleAlignmentHeight() - 1)
+ {
+ newstartseq = getVisibleAlignmentHeight() - height;
+ }
+ updateStartEndSeq(newstartseq, newstartseq + height - 1);
+
+ newresseq = new int[] { startRes, startSeq };
+ }
+ changedLocation = true;
+ changeSupport.firePropertyChange(MOVE_VIEWPORT, old, newresseq);
+ }
+ return changedLocation;
+ }
+
+ /**
* Adjust sequence position for page up. Fires a property change event.
*/
public void pageUp()