2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package jalview.renderer;
23 import jalview.api.AlignmentColsCollectionI;
24 import jalview.api.AlignmentRowsCollectionI;
25 import jalview.api.AlignmentViewPanel;
26 import jalview.api.RendererListenerI;
27 import jalview.datamodel.AlignmentAnnotation;
28 import jalview.datamodel.AlignmentI;
29 import jalview.datamodel.Annotation;
30 import jalview.datamodel.SequenceGroup;
31 import jalview.datamodel.SequenceI;
32 import jalview.renderer.seqfeatures.FeatureColourFinder;
33 import jalview.util.Platform;
34 import jalview.viewmodel.OverviewDimensions;
36 import java.awt.AlphaComposite;
37 import java.awt.Color;
38 import java.awt.Graphics;
39 import java.awt.Graphics2D;
40 import java.awt.event.ActionEvent;
41 import java.awt.event.ActionListener;
42 import java.awt.image.BufferedImage;
43 import java.awt.image.DataBufferInt;
44 import java.awt.image.WritableRaster;
45 import java.beans.PropertyChangeSupport;
46 import java.util.BitSet;
47 import java.util.Iterator;
49 import javax.swing.Timer;
51 public class OverviewRenderer
53 // transparency of hidden cols/seqs overlay
54 private final float TRANSPARENCY = 0.5f;
56 public static final String UPDATE = "OverviewUpdate";
58 private static final int MAX_PROGRESS = 100;
60 final static int STATE_INIT = 0;
62 final static int STATE_NEXT = 1;
64 final static int STATE_DONE = 2;
70 private boolean isJS = Platform.isJS();
72 private int delay = (isJS ? 1 : 0);
80 private PropertyChangeSupport changeSupport = new PropertyChangeSupport(
83 private FeatureColourFinder finder;
86 private BufferedImage miniMe;
89 * Number of pixelsPerCol;
91 private float pixelsPerCol;
94 * Number of visible columns per pixel.
97 private float colsPerPixel;
100 * raw number of pixels to allocate to each row
102 private float pixelsPerSeq;
105 * true when colsPerPixel > 1
107 private boolean skippingColumns;
110 * pre-calculated list of columns needed for a "dense" overview, where there
111 * are more columns than pixels
114 private int[] columnsToShow;
116 // height in pixels of graph
117 private int graphHeight;
119 // flag to indicate whether to halt drawing
120 private volatile boolean redraw = false;
122 // reference to alignment, needed to get sequence groups
123 private AlignmentI al;
125 private ResidueShaderI shader;
127 private OverviewResColourFinder resColFinder;
129 private boolean showProgress;
131 private AlignmentViewPanel panel;
133 // private int sequencesHeight;
135 public OverviewRenderer(AlignmentViewPanel panel,
136 jalview.api.FeatureRenderer fr, OverviewDimensions od,
137 AlignmentI alignment, ResidueShaderI resshader,
138 OverviewResColourFinder colFinder)
140 this(panel, fr, od, alignment, resshader, colFinder, true);
150 * @param shwoProgress
151 * possibly not, in JavaScript and for testng
153 public OverviewRenderer(AlignmentViewPanel panel,
154 jalview.api.FeatureRenderer fr, OverviewDimensions od,
155 AlignmentI alignment, ResidueShaderI resshader,
156 OverviewResColourFinder colFinder, boolean showProgress)
160 finder = new FeatureColourFinder(fr);
163 resColFinder = colFinder;
164 this.showProgress = showProgress;
168 rows = od.getRows(alignment);
169 cols = od.getColumns(alignment);
170 graphHeight = od.getGraphHeight();
171 alignmentHeight = od.getSequencesHeight();
173 pixelsPerSeq = od.getPixelsPerSeq();
174 pixelsPerCol = od.getPixelsPerCol();
175 colsPerPixel = Math.max(1, 1f / pixelsPerCol);
177 skippingColumns = (pixelsPerCol < 1);
183 * Draw alignment rows and columns onto an image. This method is asynchronous
184 * in JavaScript and interruptible in Java.
186 * Whether hidden rows or columns are drawn depends upon the type of
189 * Updated to skip through high-density sequences, where columns/pixels > 1.
191 * When the process is complete, the image is passed to the AlignmentViewPanel
192 * provided by the constructor.
195 * collection of rows to be drawn
197 * collection of columns to be drawn
198 * @return image containing the drawing
200 * @author Bob Hanson 2019.07.30
202 public void drawMiniMe()
208 protected void mainLoop()
219 if (!rowIterator.hasNext())
235 // Java will continue without a timeout
242 rowIterator = rows.iterator();
247 totalPixels = w * alignmentHeight;
250 changeSupport.firePropertyChange(UPDATE, -1, 0);
253 miniMe = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
254 WritableRaster raster = miniMe.getRaster();
255 DataBufferInt db = (DataBufferInt) raster.getDataBuffer();
256 pixels = db.getBankData()[0];
257 bscol = cols.getShownBitSet();
260 columnsToShow = calcColumnsToShow();
263 Platform.timeCheck(null, Platform.TIME_MARK);
266 private void nextRow()
268 row = rowIterator.next();
269 SequenceI seq = rows.getSequence(row);
271 // rate limiting step when rendering overview for lots of groups
272 SequenceGroup[] allGroups = al.findAllGroups(seq);
274 // calculate where this row extends to in pixels
275 int endRow = Math.min(Math.round((++seqIndex) * pixelsPerSeq), h);
276 // this is the key modification -- we use bscol to jump to the next column
277 // when there are more columns than pixels.
279 for (int pixelCol = 0, colNext = 0, pixelEnd = 0, icol = bscol
280 .nextSetBit(0); icol >= 0; icol = getNextCol(icol, colNext))
282 // asynchronous exit flag
289 pixelEnd = getNextPixel(colNext, colNext);
291 if (pixelCol == pixelEnd)
295 else if (pixelCol < pixelEnd)
297 int rgb = getColumnColourFromSequence(allGroups, seq, icol);
298 // fill in the appropriate number of pixels
299 for (int row = pixelRow; row < endRow; ++row)
301 for (int col = pixelCol; col < pixelEnd; ++col)
303 // BH 2019.07.27 was:
305 // miniMe.setRGB(col, row, rgbcolor);
307 // but just directly writing to the int[] pixel buffer
308 // is three times faster by my experimentation
309 pixels[row * w + col] = rgb;
314 // store last update value
317 lastUpdate = sendProgressUpdate(
318 pixelEnd * (endRow - 1 - pixelRow), totalPixels,
319 lastRowUpdate, lastUpdate);
324 if (pixelRow < endRow)
327 // store row offset and last update value
330 // BH 2019.07.29 was (old) endRow + 1 (now endRow), but should be
331 // pixelRow + 1, surely
332 lastRowUpdate = sendProgressUpdate(endRow, alignmentHeight, 0,
334 lastUpdate = lastRowUpdate;
340 * Precalculate the columns that will be used for each pixel in a dense
341 * overview. So we have to skip through the bscol BitSet to pick up one
342 * (representative?) column for each pixel.
344 * Note that there is no easy solution if we want to do color averaging, but
345 * this method might be adapted to do that. Or it could be adapted to pick the
346 * "most representative color" for a group of columns.
348 * @author Bob Hanson 2019.09.03
349 * @return a -1 terminated int[]
351 private int[] calcColumnsToShow()
353 int[] a = new int[w + 1];
355 float offset = bscol.nextSetBit(0);
358 return new int[] { -1 };
361 a[pixel++] = (int) offset;
362 // for example, say we have 10 pixels per column:
363 // ...............xxxxxxxx....xxxxxx.........xxxxxx......
364 // nextSet(i).....^...........^..............^...........
365 // nextClear..............^.........^..............^.....
366 // run lengths....|--n1--|....|-n2-|.........|-n3-|......
367 // 10 pixel/col...|---pixel1---||-----pixel2------|......
368 // pixel..........^0............^1.......................
369 for (int i, iClear = -1; pixel < w
370 && (i = bscol.nextSetBit(iClear + 1)) >= 0;)
372 // find the next clear bit
373 iClear = bscol.nextClearBit(i + 1);
374 // add the run length n1, n2, n3 to grow the column buffer
375 colBuffer += iClear - i; // n1, n2, etc.
376 // add columns if we have accumulated enough pixels
378 while (colBuffer > colsPerPixel && pixel < w)
380 colBuffer -= colsPerPixel;
381 offset += colsPerPixel;
382 a[pixel++] = i + (int) offset;
384 // set back column pointer relative to the next run
393 * The next column is either a precalculated pixel (when there are multiple
394 * pixels per column) or the next set bit for the column that aligns with the
395 * next pixel (when there are more columns than pixels).
397 * When columns are hidden, this value is precalculated; otherwise it is
402 * pixel pointer into columnsToShow
405 private int getNextCol(int icol, int pixel)
407 return (skippingColumns ? columnsToShow[pixel]
408 : bscol.nextSetBit(icol + 1));
412 * Derive the next pixel from either as the given pixel (when we are skipping
413 * columns because this is a dense overview and the pixel known), or from the
414 * current column based on pixels/column. The latter is used for drawing the
415 * hidden-column mask or for overviews that have more pixels across than
422 private int getNextPixel(int icol, int pixel)
424 return Math.min(skippingColumns && pixel > 0 ? pixel
425 : Math.round(icol * pixelsPerCol), w);
428 private ActionListener listener = new ActionListener()
431 public void actionPerformed(ActionEvent e)
438 private boolean loop()
446 timer = new Timer(delay, listener);
447 timer.setRepeats(false);
462 "overviewrender " + ndone + " pixels row:" + row + " redraw:"
467 overlayHiddenRegions();
470 // final update to progress bar if present
474 // BH was pixelRow - 1, but that could go negative
475 sendProgressUpdate(pixelRow, alignmentHeight, 0, 0);
479 // sendProgressUpdate(alignmentHeight, miniMe.getHeight(), 0, 0);
480 sendProgressUpdate(1, 1, 0, 0);
483 panel.overviewDone(miniMe);
488 private AlignmentRowsCollectionI rows;
490 private AlignmentColsCollectionI cols;
492 Iterator<Integer> rowIterator;
509 * Calculate progress update value and fire event
510 * @param rowOffset number of rows to offset calculation by
511 * @return new rowOffset - return value only to be used when at end of a row
513 private int sendProgressUpdate(int position, int maximum, int rowOffset,
516 int newUpdate = rowOffset
517 + Math.round(MAX_PROGRESS * ((float) position / maximum));
518 if (newUpdate > lastUpdate)
520 changeSupport.firePropertyChange(UPDATE, rowOffset, newUpdate);
527 * Find the RGB value of the colour of a sequence at a specified column position
530 * sequence to get colour for
532 * column position to get colour for
533 * @return colour of sequence at this position, as RGB
535 int getColumnColourFromSequence(SequenceGroup[] allGroups, SequenceI seq,
538 return (seq == null || icol >= seq.getLength()
539 ? resColFinder.GAP_COLOUR
540 : resColFinder.getResidueColourInt(true, shader, allGroups, seq,
545 * Overlay the hidden regions on the overview image
548 private void overlayHiddenRegions()
550 if (cols.hasHidden() || rows.hasHidden())
552 BufferedImage mask = buildHiddenImage();
554 Graphics2D g = (Graphics2D) miniMe.getGraphics();
555 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
557 g.drawImage(mask, 0, 0, miniMe.getWidth(), miniMe.getHeight(), null);
563 * Build a masking image of hidden columns and rows to be applied on top of
564 * the main overview image.
567 * collection of rows the overview is built over
569 * collection of columns the overview is built over
571 * width of overview in pixels
573 * height of overview in pixels
574 * @return BufferedImage containing mask of hidden regions
576 private BufferedImage buildHiddenImage()
579 BufferedImage hiddenImage = new BufferedImage(w, h,
580 BufferedImage.TYPE_INT_ARGB);
582 Color hidden = resColFinder.getHiddenColour();
584 Graphics2D g2d = (Graphics2D) hiddenImage.getGraphics();
586 g2d.setColor(hidden);
587 // set background to transparent
588 // g2d.setComposite(AlphaComposite.Clear);
589 // g2d.fillRect(0, 0, width, height);
591 // set next colour to opaque
592 g2d.setComposite(AlphaComposite.Src);
594 // System.out.println(cols.getClass().getName());
595 if (cols.hasHidden())
597 // AllColsCollection only
598 BitSet bs = cols.getHiddenBitSet();
599 for (int pixelCol = -1, icol2 = 0, icol = bs
600 .nextSetBit(0); icol >= 0; icol = bs.nextSetBit(icol2))
606 icol2 = bs.nextClearBit(icol + 1);
607 int pixelEnd = getNextPixel(icol2, 0);
608 if (pixelEnd > pixelCol)
610 pixelCol = getNextPixel(icol, 0);
611 g2d.fillRect(pixelCol, 0, Math.max(1, pixelEnd - pixelCol),
617 if (rows.hasHidden())
621 for (int alignmentRow : rows)
628 // calculate where this row extends to in pixels
629 int endRow = Math.min(Math.round((++seqIndex) * pixelsPerSeq),
632 // get details of this alignment row
633 if (rows.isHidden(alignmentRow))
635 g2d.fillRect(0, pixelRow, w, endRow - 1 - pixelRow);
645 * Draw the alignment annotation in the overview panel
648 * alignment annotation information
650 public void drawGraph(AlignmentAnnotation anno)
653 Graphics g = miniMe.getGraphics();
654 g.translate(0, alignmentHeight);
656 Annotation[] annotations = anno.annotations;
657 float max = anno.graphMax;
658 g.setColor(Color.white);
659 g.fillRect(0, 0, w, y);
661 for (int pixelCol = 0, colNext = 0, pixelEnd = 0, len = annotations.length, icol = bscol
662 .nextSetBit(0); icol >= 0
663 && icol < len; icol = getNextCol(icol, colNext))
669 changeSupport.firePropertyChange(UPDATE, MAX_PROGRESS - 1, 0);
675 pixelEnd = getNextPixel(colNext, colNext);
676 Annotation ann = annotations[icol];
679 Color color = ann.colour;
680 g.setColor(color == null ? Color.black : color);
681 int height = Math.min(y, (int) ((ann.value / max) * y));
682 g.fillRect(pixelCol, y - height, Math.max(1, pixelEnd - pixelCol),
688 g.translate(0, -alignmentHeight);
693 changeSupport.firePropertyChange(UPDATE, MAX_PROGRESS - 1,
700 * Allows redraw flag to be set
703 * value to set redraw to: true = redraw is occurring, false = no
706 public void setRedraw(boolean b)
714 public void addPropertyChangeListener(RendererListenerI listener)
716 changeSupport.addPropertyChangeListener(listener);
719 public void removePropertyChangeListener(RendererListenerI listener)
721 changeSupport.removePropertyChangeListener(listener);