- /*
- * Build the overview panel image
- */
- private void buildImage(float sampleRow, float sampleCol, Graphics mg)
- {
- int lastcol = 0;
- int lastrow = 0;
- int xstart = 0;
- int ystart = 0;
- Color color = Color.yellow;
- int sameRow = 0;
- int sameCol = 0;
-
- SequenceI seq = null;
- FeatureColourFinder finder = new FeatureColourFinder(fr);
-
- final boolean hasHiddenCols = av.hasHiddenColumns();
- boolean hiddenRow = false;
-
- for (int row = 0; row < od.getSequencesHeight() && !restart; row++)
- {
- if ((int) (row * sampleRow) == lastrow)
- {
- sameRow++;
- }
- else
- {
- // get the sequence which would be at alignment index 'lastrow' if no
- // rows were hidden, and determine whether it is hidden or not
- hiddenRow = av.getAlignment().isHidden(lastrow);
- seq = av.getAlignment().getSequenceAtAbsoluteIndex(lastrow);
-
- for (int col = 0; col < od.getWidth(); col++)
- {
- if ((int) (col * sampleCol) == lastcol
- && (int) (row * sampleRow) == lastrow)
- {
- sameCol++;
- }
- else
- {
- lastcol = (int) (col * sampleCol);
-
- color = getColumnColourFromSequence(seq, hiddenRow,
- hasHiddenCols, lastcol, finder);
-
- mg.setColor(color);
- if (sameCol == 1 && sameRow == 1)
- {
- mg.drawLine(xstart, ystart, xstart, ystart);
- }
- else
- {
- mg.fillRect(xstart, ystart, sameCol, sameRow);
- }
-
- xstart = col;
- sameCol = 1;
- }
- }
- lastrow = (int) (row * sampleRow);
- ystart = row;
- sameRow = 1;
- }
- }
- }
-
- /*
- * Find the colour of a sequence at a specified column position
- */
- private Color getColumnColourFromSequence(
- jalview.datamodel.SequenceI seq, boolean hiddenRow,
- boolean hasHiddenCols, int lastcol, FeatureColourFinder finder)
- {
- Color color = Color.white;
- if (seq.getLength() > lastcol)
- {
- color = sr.getResidueColour(seq, lastcol, finder);
- }
-
- if (hiddenRow
- || (hasHiddenCols && !av.getColumnSelection()
- .isVisible(lastcol)))
- {
- color = color.darker().darker();
- }
- return color;
- }
-