package jalview.renderer;
+import java.util.Arrays;
import java.util.Iterator;
+import java.util.List;
import jalview.datamodel.ColumnSelection;
import jalview.datamodel.ContactListI;
final ContactListI contacts;
+ /**
+ * how many pixels per contact (1..many)
+ */
final int pixels_step;
+ /**
+ * how many contacts per pixel (many > 0)
+ */
final double contacts_per_pixel;
+ /**
+ * number of contacts being mapped
+ */
final int contact_height;
+ /**
+ * number of pixels to map contact_height to
+ */
final int graphHeight;
+ /**
+ * number of contacts for each pixel_step - to last whole contact
+ */
+ final double contacts_step;
+
+ final int lastStep;
+
+ /**
+ * Bean used to map from a range of contacts to a range of pixels
+ * @param contacts
+ * @param graphHeight Number of pixels to map given range of contacts
+ */
public ContactGeometry(final ContactListI contacts, int graphHeight)
{
this.contacts = contacts;
this.graphHeight = graphHeight;
contact_height = contacts.getContactHeight();
// fractional number of contacts covering each pixel
- contacts_per_pixel = (graphHeight < 1) ? contact_height
+ contacts_per_pixel = (graphHeight <= 1) ? contact_height
: ((double) contact_height) / ((double) graphHeight);
if (contacts_per_pixel >= 1)
pixels_step = (int) Math
.ceil(((double) graphHeight) / (double) contact_height);
}
+ contacts_step = pixels_step*contacts_per_pixel;
+ lastStep = (int) Math.min((double)graphHeight, ((double)graphHeight)/((double)pixels_step));
}
public class contactInterval
public final int pEnd;
+ @Override
+ public boolean equals(Object obj)
+ {
+ if (obj == null || !(obj instanceof contactInterval))
+ {
+ return false;
+ }
+ contactInterval them = (contactInterval) obj;
+ return cStart == them.cStart && cEnd == them.cEnd && pEnd == them.pEnd
+ && pStart == them.pStart;
+ }
+ @Override
+ public String toString()
+ {
+ return "Contacts ["+cStart+","+cEnd+"] : Pixels ["+pStart+","+pEnd+"]";
+ }
}
/**
{
// TODO: turn into function on hiddenColumns and create test !!
Iterator<int[]> viscont = hiddenColumns.getVisContigsIterator(
- mappedRange[p], mappedRange[p + 1], false);
+ -1+mappedRange[p], -1+mappedRange[p + 1], false);
containsHidden = !viscont.hasNext();
if (!containsHidden)
{
}
else
{
- rowsel = columnSelection.intersects(mappedRange[p],
- mappedRange[p + 1]);
+ rowsel = columnSelection.intersects(-1+mappedRange[p],
+ -1+mappedRange[p + 1]);
}
}
return rowsel;
}
/**
+ * Return mapped cell intersecting pStart \
+ *
+ * FIXME: REDUNDANT METHOD - COULD DELETE FIXME: OR RE-IMPLEMENT AS EFFICIENT
+ * RANGE QUERY
*
* @param pStart
+ * [0..)
* @param pEnd
- * @return range for
+ * @return nearest full cell containing pStart - does not set
+ * contactInterval.pEnd or cEnd to equivalent position on pEnd !
*/
public contactInterval mapFor(int pStart, int pEnd)
{
- int cStart = (int) Math.floor(pStart * contacts_per_pixel);
- contactInterval ci = new contactInterval(cStart,
- (int) Math.min(contact_height,
- Math.ceil(
- cStart + (pEnd - pStart) * contacts_per_pixel)),
- pStart, pEnd);
-
- return ci;
+ if (pStart < 0)
+ {
+ pStart = 0;
+ }
+ if (pEnd < pStart)
+ {
+ pEnd = pStart;
+ }
+ if (pEnd >= graphHeight)
+ {
+ pEnd = graphHeight - 1;
+ }
+ if (pStart >= graphHeight)
+ {
+ pStart = graphHeight - pixels_step;
+ }
+ int step = Math.floorDiv(pStart, pixels_step);
+ return findStep(step);
+ }
+
+ /**
+ *
+ * @param step
+ * [0..) n steps covering height and contactHeight
+ * @return contactInterval for step, or null if out of bounds
+ */
+ contactInterval findStep(int step)
+ {
+ if (step < 0 || step > lastStep)
+ {
+ return null;
+ }
+ return new contactInterval((int) Math.floor(contacts_step * step),
+ -1 + (int) Math.min(contact_height,
+ Math.floor(contacts_step * (step + 1))),
+ pixels_step * step,
+ Math.min(graphHeight, (step + 1) * pixels_step) - 1);
}
/**
*/
public contactInterval mapFor(int pCentre)
{
- int pStart = Math.max(pCentre - pixels_step, 0);
- int pEnd = Math.min(pStart + pixels_step, graphHeight);
- int cStart = (int) Math.floor(pStart * contacts_per_pixel);
- contactInterval ci = new contactInterval(cStart,
- (int) Math.min(contact_height,
- Math.ceil(cStart + (pixels_step) * contacts_per_pixel)),
- pStart, pEnd);
-
- return ci;
+ if (pCentre >= graphHeight + pixels_step)
+ {
+ return null;
+ }
+ int step = Math.floorDiv(pCentre, pixels_step);
+ return findStep(step);
+ }
+
+ public List<contactInterval> allSteps()
+ {
+ contactInterval[] array = new contactInterval[lastStep + 1];
+ int csum = 0, psum = 0;
+ for (int i = 0; i <= lastStep; i++)
+ {
+ array[i] = findStep(i);
+ csum += 1 + array[i].cEnd - array[i].cStart;
+ psum += 1 + array[i].pEnd - array[i].pStart;
+ }
+ if (csum != contact_height || psum != graphHeight)
+ {
+ System.err.println("csum = " + csum + " not " + contact_height + "\n"
+ + "psum = " + psum + " not " + graphHeight);
+ return null;
+ }
+ return Arrays.asList(array);
}
public Iterator<contactInterval> iterateOverContactIntervals(