+ // set up foreground to draw red dashed line
+ g.setComposite(AlphaComposite.Src);
+ g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT,
+ BasicStroke.JOIN_ROUND, 3f, new float[]
+ { 5f, 3f }, 0f));
+ g.setColor(Color.RED);
+ }
+
+ /*
+ * Draw a selection group over an unwrapped alignment
+ * @param g graphics object to draw with
+ * @param group selection group
+ * @param startRes start residue of area to draw
+ * @param endRes end residue of area to draw
+ * @param startSeq start sequence of area to draw
+ * @param endSeq end sequence of area to draw
+ * @param offset vertical offset (used when called from wrapped alignment code)
+ */
+ private void drawUnwrappedSelection(Graphics2D g, SequenceGroup group,
+ int startRes, int endRes, int startSeq, int endSeq, int offset)
+ {
+ int charWidth = av.getCharWidth();
+
+ if (!av.hasHiddenColumns())
+ {
+ drawPartialGroupOutline(g, group, startRes, endRes, startSeq, endSeq,
+ offset);
+ }
+ else
+ {
+ // package into blocks of visible columns
+ int screenY = 0;
+ int blockStart = startRes;
+ int blockEnd = endRes;
+
+ for (int[] region : av.getAlignment().getHiddenColumns()
+ .getHiddenColumnsCopy())
+ {
+ int hideStart = region[0];
+ int hideEnd = region[1];
+
+ if (hideStart <= blockStart)
+ {
+ blockStart += (hideEnd - hideStart) + 1;
+ continue;
+ }
+
+ blockEnd = hideStart - 1;
+
+ g.translate(screenY * charWidth, 0);
+ drawPartialGroupOutline(g, group,
+ blockStart, blockEnd, startSeq, endSeq, offset);
+
+ g.translate(-screenY * charWidth, 0);
+ screenY += blockEnd - blockStart + 1;
+ blockStart = hideEnd + 1;
+
+ if (screenY > (endRes - startRes))
+ {
+ // already rendered last block
+ break;
+ }
+ }
+
+ if (screenY <= (endRes - startRes))
+ {
+ // remaining visible region to render
+ blockEnd = blockStart + (endRes - startRes) - screenY;
+ g.translate(screenY * charWidth, 0);
+ drawPartialGroupOutline(g, group,
+ blockStart, blockEnd, startSeq, endSeq, offset);
+
+ g.translate(-screenY * charWidth, 0);
+ }
+ }
+ }
+
+ /*
+ * Draw the selection group as a separate image and overlay
+ */
+ private void drawPartialGroupOutline(Graphics2D g, SequenceGroup group,
+ int startRes, int endRes, int startSeq, int endSeq,
+ int verticalOffset)
+ {
+ int charHeight = av.getCharHeight();
+ int charWidth = av.getCharWidth();
+ int visWidth = (endRes - startRes + 1) * charWidth;
+
+ int oldY = -1;
+ int i = 0;
+ boolean inGroup = false;
+ int top = -1;
+ int bottom = -1;
+ int sy = -1;
+
+ List<SequenceI> seqs = group.getSequences(null);
+
+ // position of start residue of group relative to startRes, in pixels
+ int sx = (group.getStartRes() - startRes) * charWidth;
+
+ // width of group in pixels
+ int xwidth = (((group.getEndRes() + 1) - group.getStartRes())
+ * charWidth) - 1;
+
+ if (!(sx + xwidth < 0 || sx > visWidth))
+ {
+ for (i = startSeq; i <= endSeq; i++)
+ {
+ sy = verticalOffset + (i - startSeq) * charHeight;
+
+ if ((sx <= (endRes - startRes) * charWidth)
+ && seqs.contains(av.getAlignment().getSequenceAt(i)))
+ {
+ if ((bottom == -1)
+ && !seqs.contains(av.getAlignment().getSequenceAt(i + 1)))
+ {
+ bottom = sy + charHeight;
+ }
+
+ if (!inGroup)
+ {
+ if (((top == -1) && (i == 0)) || !seqs
+ .contains(av.getAlignment().getSequenceAt(i - 1)))
+ {
+ top = sy;
+ }
+
+ oldY = sy;
+ inGroup = true;
+ }
+ }
+ else if (inGroup)
+ {
+ drawVerticals(g, sx, xwidth, visWidth, oldY, sy);
+ drawHorizontals(g, sx, xwidth, visWidth, top, bottom);
+
+ // reset top and bottom
+ top = -1;
+ bottom = -1;
+ inGroup = false;
+ }
+ }
+ if (inGroup)
+ {
+ sy = verticalOffset + ((i - startSeq) * charHeight);
+ drawVerticals(g, sx, xwidth, visWidth, oldY, sy);
+ drawHorizontals(g, sx, xwidth, visWidth, top, bottom);
+ }
+ }
+ }
+
+ /**
+ * Draw horizontal selection group boundaries at top and bottom positions
+ *
+ * @param g
+ * graphics object to draw on
+ * @param sx
+ * start x position
+ * @param xwidth
+ * width of gap
+ * @param visWidth
+ * visWidth maximum available width
+ * @param top
+ * position to draw top of group at
+ * @param bottom
+ * position to draw bottom of group at
+ */
+ private void drawHorizontals(Graphics2D g, int sx, int xwidth,
+ int visWidth, int top, int bottom)
+ {
+ int width = xwidth;
+ int startx = sx;
+ if (startx < 0)
+ {
+ width += startx;
+ startx = 0;
+ }
+
+ // don't let width extend beyond current block, or group extent
+ // fixes JAL-2672
+ if (startx + width >= visWidth)
+ {
+ width = visWidth - startx;
+ }
+
+ if (top != -1)
+ {
+ g.drawLine(startx, top, startx + width, top);
+ }
+
+ if (bottom != -1)
+ {
+ g.drawLine(startx, bottom - 1, startx + width, bottom - 1);
+ }
+ }
+
+ /**
+ * Draw vertical lines at sx and sx+xwidth providing they lie within
+ * [0,visWidth)
+ *
+ * @param g
+ * graphics object to draw on
+ * @param sx
+ * start x position
+ * @param xwidth
+ * width of gap
+ * @param visWidth
+ * visWidth maximum available width
+ * @param oldY
+ * top y value
+ * @param sy
+ * bottom y value
+ */
+ private void drawVerticals(Graphics2D g, int sx, int xwidth, int visWidth,
+ int oldY, int sy)
+ {
+ // if start position is visible, draw vertical line to left of
+ // group
+ if (sx >= 0 && sx < visWidth)
+ {
+ g.drawLine(sx, oldY, sx, sy);
+ }
+
+ // if end position is visible, draw vertical line to right of
+ // group
+ if (sx + xwidth < visWidth)
+ {
+ g.drawLine(sx + xwidth, oldY, sx + xwidth, sy);
+ }
+ }
+
+ /**
+ * Highlights search results in the visible region by rendering as white text
+ * on a black background. Any previous highlighting is removed. Answers true
+ * if any highlight was left on the visible alignment (so status bar should be
+ * set to match), else false.
+ * <p>
+ * Currently fastPaint is not implemented for wrapped alignments. If a wrapped
+ * alignment had to be scrolled to show the highlighted region, then it should
+ * be fully redrawn, otherwise a fast paint can be performed. This argument
+ * could be removed if fast paint of scrolled wrapped alignment is coded in
+ * future (JAL-2609).
+ *
+ * @param results
+ * @param noFastPaint
+ * @return
+ */
+ public boolean highlightSearchResults(SearchResultsI results,
+ boolean noFastPaint)
+ {
+ if (fastpainting)
+ {
+ return false;
+ }
+ boolean wrapped = av.getWrapAlignment();
+ try
+ {
+ fastPaint = !noFastPaint;
+ fastpainting = fastPaint;
+
+ /*
+ * to avoid redrawing the whole visible region, we instead
+ * redraw just the minimal regions to remove previous highlights
+ * and add new ones
+ */
+ SearchResultsI previous = av.getSearchResults();
+ av.setSearchResults(results);
+ boolean redrawn = false;
+ boolean drawn = false;
+ if (wrapped)
+ {
+ redrawn = drawMappedPositionsWrapped(previous);
+ drawn = drawMappedPositionsWrapped(results);
+ redrawn |= drawn;
+ }
+ else
+ {
+ redrawn = drawMappedPositions(previous);
+ drawn = drawMappedPositions(results);
+ redrawn |= drawn;
+ }
+
+ /*
+ * if highlights were either removed or added, repaint
+ */
+ if (redrawn)
+ {
+ repaint();
+ }
+
+ /*
+ * return true only if highlights were added
+ */
+ return drawn;
+
+ } finally
+ {
+ fastpainting = false;
+ }
+ }
+
+ /**
+ * Redraws the minimal rectangle in the visible region (if any) that includes
+ * mapped positions of the given search results. Whether or not positions are
+ * highlighted depends on the SearchResults set on the Viewport. This allows
+ * this method to be called to either clear or set highlighting. Answers true
+ * if any positions were drawn (in which case a repaint is still required),
+ * else false.
+ *
+ * @param results
+ * @return
+ */
+ protected boolean drawMappedPositions(SearchResultsI results)
+ {
+ if ((results == null) || (gg == null)) // JAL-2784 check gg is not null
+ {
+ return false;
+ }
+
+ /*
+ * calculate the minimal rectangle to redraw that
+ * includes both new and existing search results
+ */
+ int firstSeq = Integer.MAX_VALUE;
+ int lastSeq = -1;
+ int firstCol = Integer.MAX_VALUE;
+ int lastCol = -1;
+ boolean matchFound = false;
+
+ ViewportRanges ranges = av.getRanges();
+ int firstVisibleColumn = ranges.getStartRes();
+ int lastVisibleColumn = ranges.getEndRes();
+ AlignmentI alignment = av.getAlignment();
+ if (av.hasHiddenColumns())
+ {
+ firstVisibleColumn = alignment.getHiddenColumns()
+ .adjustForHiddenColumns(firstVisibleColumn);
+ lastVisibleColumn = alignment.getHiddenColumns()
+ .adjustForHiddenColumns(lastVisibleColumn);
+ }
+
+ for (int seqNo = ranges.getStartSeq(); seqNo <= ranges
+ .getEndSeq(); seqNo++)
+ {
+ SequenceI seq = alignment.getSequenceAt(seqNo);
+
+ int[] visibleResults = results.getResults(seq, firstVisibleColumn,
+ lastVisibleColumn);
+ if (visibleResults != null)
+ {
+ for (int i = 0; i < visibleResults.length - 1; i += 2)
+ {
+ int firstMatchedColumn = visibleResults[i];
+ int lastMatchedColumn = visibleResults[i + 1];
+ if (firstMatchedColumn <= lastVisibleColumn
+ && lastMatchedColumn >= firstVisibleColumn)
+ {
+ /*
+ * found a search results match in the visible region -
+ * remember the first and last sequence matched, and the first
+ * and last visible columns in the matched positions
+ */
+ matchFound = true;
+ firstSeq = Math.min(firstSeq, seqNo);
+ lastSeq = Math.max(lastSeq, seqNo);
+ firstMatchedColumn = Math.max(firstMatchedColumn,
+ firstVisibleColumn);
+ lastMatchedColumn = Math.min(lastMatchedColumn,
+ lastVisibleColumn);
+ firstCol = Math.min(firstCol, firstMatchedColumn);
+ lastCol = Math.max(lastCol, lastMatchedColumn);
+ }
+ }
+ }
+ }
+
+ if (matchFound)
+ {
+ if (av.hasHiddenColumns())
+ {
+ firstCol = alignment.getHiddenColumns()
+ .findColumnPosition(firstCol);
+ lastCol = alignment.getHiddenColumns().findColumnPosition(lastCol);
+ }
+ int transX = (firstCol - ranges.getStartRes()) * av.getCharWidth();
+ int transY = (firstSeq - ranges.getStartSeq()) * av.getCharHeight();
+ gg.translate(transX, transY);
+ drawPanel(gg, firstCol, lastCol, firstSeq, lastSeq, 0);
+ gg.translate(-transX, -transY);
+ }
+
+ return matchFound;