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.
23 import jalview.datamodel.ColumnSelection;
24 import jalview.datamodel.HiddenColumns;
25 import jalview.datamodel.SequenceGroup;
26 import jalview.renderer.ScaleRenderer;
27 import jalview.renderer.ScaleRenderer.ScaleMark;
28 import jalview.util.MessageManager;
29 import jalview.util.Platform;
30 import jalview.viewmodel.ViewportListenerI;
31 import jalview.viewmodel.ViewportRanges;
33 import java.awt.Color;
34 import java.awt.FontMetrics;
35 import java.awt.Graphics;
36 import java.awt.Graphics2D;
37 import java.awt.Point;
38 import java.awt.RenderingHints;
39 import java.awt.event.ActionEvent;
40 import java.awt.event.ActionListener;
41 import java.awt.event.MouseEvent;
42 import java.awt.event.MouseListener;
43 import java.awt.event.MouseMotionListener;
44 import java.beans.PropertyChangeEvent;
45 import java.util.Iterator;
46 import java.util.List;
48 import javax.swing.JMenuItem;
49 import javax.swing.JPanel;
50 import javax.swing.JPopupMenu;
51 import javax.swing.ToolTipManager;
54 * The panel containing the sequence ruler (when not in wrapped mode), and
55 * supports a range of mouse operations to select, hide or reveal columns.
57 public class ScalePanel extends JPanel
58 implements MouseMotionListener, MouseListener, ViewportListenerI
60 protected int offy = 4;
64 protected AlignViewport av;
68 boolean stretchingGroup = false;
71 * min, max hold the extent of a mouse drag action
77 boolean mouseDragging = false;
80 * holds a hidden column range when the mouse is over an adjacent column
90 public ScalePanel(AlignViewport av, AlignmentPanel ap)
95 addMouseListener(this);
96 addMouseMotionListener(this);
98 av.getRanges().addPropertyChangeListener(this);
108 public void mousePressed(MouseEvent evt)
110 int x = (evt.getX() / av.getCharWidth()) + av.getRanges().getStartRes();
113 if (av.hasHiddenColumns())
115 x = av.getAlignment().getHiddenColumns().visibleToAbsoluteColumn(x);
117 res = Math.min(x, av.getAlignment().getWidth() - 1);
122 if (evt.isPopupTrigger()) // Mac: mousePressed
124 rightMouseButtonPressed(evt, res);
127 if (Platform.isWinRightButton(evt))
130 * defer right-mouse click handling to mouse up on Windows
131 * (where isPopupTrigger() will answer true)
132 * but accept Cmd-click on Mac which passes isRightMouseButton
136 leftMouseButtonPressed(evt, res);
140 * Handles right mouse button press. If pressed in a selected column, opens
141 * context menu for 'Hide Columns'. If pressed on a hidden columns marker,
142 * opens context menu for 'Reveal / Reveal All'. Else does nothing.
147 protected void rightMouseButtonPressed(MouseEvent evt, final int res)
149 JPopupMenu pop = buildPopupMenu(res);
150 if (pop.getSubElements().length > 0)
152 pop.show(this, evt.getX(), evt.getY());
157 * Builds a popup menu with 'Hide' or 'Reveal' options, or both, or neither
160 * column number (0..)
163 protected JPopupMenu buildPopupMenu(final int res)
165 JPopupMenu pop = new JPopupMenu();
168 * logic here depends on 'reveal', set in mouseMoved;
169 * grab the hidden range in case mouseMoved nulls it later
171 final int[] hiddenRange = reveal;
172 if (hiddenRange != null)
174 JMenuItem item = new JMenuItem(
175 MessageManager.getString("label.reveal"));
176 item.addActionListener(new ActionListener()
179 public void actionPerformed(ActionEvent e)
181 av.showColumn(hiddenRange[0]);
188 if (av.getAlignment().getHiddenColumns()
189 .hasMultiHiddenColumnRegions())
191 item = new JMenuItem(MessageManager.getString("action.reveal_all"));
192 item.addActionListener(new ActionListener()
195 public void actionPerformed(ActionEvent e)
197 av.showAllHiddenColumns();
206 if (av.getColumnSelection().contains(res))
208 JMenuItem item = new JMenuItem(
209 MessageManager.getString("label.hide_columns"));
210 item.addActionListener(new ActionListener()
213 public void actionPerformed(ActionEvent e)
215 av.hideColumns(res, res);
216 if (av.getSelectionGroup() != null && av.getSelectionGroup()
217 .getSize() == av.getAlignment().getHeight())
219 av.setSelectionGroup(null);
229 protected void updatePanel()
232 ap.paintAlignment(true, true);
233 ap.updateScrollBarsFromRanges();
238 * Handles left mouse button press
243 protected void leftMouseButtonPressed(MouseEvent evt, final int res)
246 * Ctrl-click/Cmd-click adds to the selection
247 * Shift-click extends the selection
249 // TODO Problem: right-click on Windows not reported until mouseReleased?!?
250 if (!Platform.isControlDown(evt) && !evt.isShiftDown())
252 av.getColumnSelection().clear();
255 av.getColumnSelection().addElement(res);
256 SequenceGroup sg = new SequenceGroup(av.getAlignment().getSequences());
260 if (evt.isShiftDown())
262 int min = Math.min(av.getColumnSelection().getMin(), res);
263 int max = Math.max(av.getColumnSelection().getMax(), res);
264 for (int i = min; i < max; i++)
266 av.getColumnSelection().addElement(i);
271 av.setSelectionGroup(sg);
272 ap.paintAlignment(false, false);
277 * Action on mouseUp is to set the limit of the current selection group (if
278 * there is one) and broadcast the selection
283 public void mouseReleased(MouseEvent evt)
285 boolean wasDragging = mouseDragging;
286 mouseDragging = false;
287 ap.getSeqPanel().stopScrolling();
289 // todo res calculation should be a method on AlignViewport
290 int xCords = Math.max(0, evt.getX()); // prevent negative X coordinates
291 ViewportRanges ranges = av.getRanges();
292 int res = (xCords / av.getCharWidth()) + ranges.getStartRes();
293 res = Math.min(res, ranges.getEndRes());
294 if (av.hasHiddenColumns())
296 res = av.getAlignment().getHiddenColumns()
297 .visibleToAbsoluteColumn(res);
299 res = Math.max(0, res);
301 if (!stretchingGroup)
303 if (evt.isPopupTrigger()) // Windows: mouseReleased
305 rightMouseButtonPressed(evt, res);
309 ap.paintAlignment(false, false);
314 SequenceGroup sg = av.getSelectionGroup();
318 if (res > sg.getStartRes())
322 else if (res < sg.getStartRes())
328 min = Math.min(res, min);
329 max = Math.max(res, max);
330 av.getColumnSelection().stretchGroup(res, sg, min, max);
333 stretchingGroup = false;
334 ap.paintAlignment(false, false);
335 av.isSelectionGroupChanged(true);
336 av.isColSelChanged(true);
341 * Action on dragging the mouse in the scale panel is to expand or shrink the
342 * selection group range (including any hidden columns that it spans). Note
343 * that the selection is only broadcast at the start of the drag (on
344 * mousePressed) and at the end (on mouseReleased), to avoid overload
345 * redrawing of other views.
350 public void mouseDragged(MouseEvent evt)
352 mouseDragging = true;
353 ColumnSelection cs = av.getColumnSelection();
354 HiddenColumns hidden = av.getAlignment().getHiddenColumns();
356 int res = (evt.getX() / av.getCharWidth())
357 + av.getRanges().getStartRes();
358 res = Math.max(0, res);
359 res = hidden.visibleToAbsoluteColumn(res);
360 res = Math.min(res, av.getAlignment().getWidth() - 1);
361 min = Math.min(res, min);
362 max = Math.max(res, max);
364 SequenceGroup sg = av.getSelectionGroup();
367 stretchingGroup = true;
368 cs.stretchGroup(res, sg, min, max);
369 ap.paintAlignment(false, false);
374 public void mouseEntered(MouseEvent evt)
378 mouseDragging = false;
379 ap.getSeqPanel().stopScrolling();
384 * Action on leaving the panel bounds with mouse drag in progress is to start
385 * scrolling the alignment in the direction of the mouse. To restrict
386 * scrolling to left-right (not up-down), the y-value of the mouse position is
387 * replaced with zero.
390 public void mouseExited(MouseEvent evt)
394 ap.getSeqPanel().startScrolling(new Point(evt.getX(), 0));
399 public void mouseClicked(MouseEvent evt)
404 * Creates a tooltip when the mouse is over a hidden columns marker
407 public void mouseMoved(MouseEvent evt)
409 this.setToolTipText(null);
411 if (!av.hasHiddenColumns())
416 int res = (evt.getX() / av.getCharWidth())
417 + av.getRanges().getStartRes();
419 reveal = av.getAlignment().getHiddenColumns()
420 .getRegionWithEdgeAtRes(res);
422 res = av.getAlignment().getHiddenColumns().visibleToAbsoluteColumn(res);
424 ToolTipManager.sharedInstance().registerComponent(this);
426 MessageManager.getString("label.reveal_hidden_columns"));
437 public void paintComponent(Graphics g)
439 // super.paintComponent(g); // BH 2019
442 * shouldn't get called in wrapped mode as the scale above is
443 * drawn instead by SeqCanvas.drawNorthScale
445 if (!av.getWrapAlignment())
447 drawScale(g, av.getRanges().getStartRes(), av.getRanges().getEndRes(),
448 getWidth(), getHeight());
452 // scalewidth will normally be screenwidth,
453 public void drawScale(Graphics g, int startx, int endx, int width,
456 Graphics2D gg = (Graphics2D) g;
457 gg.setFont(av.getFont());
461 gg.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
462 RenderingHints.VALUE_ANTIALIAS_ON);
465 // Fill in the background
466 gg.setColor(Color.white);
467 gg.fillRect(0, 0, width, height);
468 gg.setColor(Color.black);
470 // Fill the selected columns
471 ColumnSelection cs = av.getColumnSelection();
472 HiddenColumns hidden = av.getAlignment().getHiddenColumns();
473 int avCharWidth = av.getCharWidth();
474 int avCharHeight = av.getCharHeight();
478 gg.setColor(new Color(220, 0, 0));
480 for (int sel : cs.getSelected())
482 // TODO: JAL-2001 - provide a fast method to list visible selected in a
485 if (av.hasHiddenColumns())
487 if (hidden.isVisible(sel))
489 sel = hidden.absoluteToVisibleColumn(sel);
497 if ((sel >= startx) && (sel <= endx))
499 gg.fillRect((sel - startx) * avCharWidth, 0, avCharWidth,
505 int widthx = 1 + endx - startx;
507 FontMetrics fm = gg.getFontMetrics(av.getFont());
508 int y = avCharHeight;
509 int yOf = fm.getDescent();
511 if (av.hasHiddenColumns())
513 // draw any hidden column markers
514 gg.setColor(Color.blue);
517 if (av.getShowHiddenMarkers())
519 Iterator<Integer> it = hidden.getStartRegionIterator(startx,
520 startx + widthx + 1);
523 res = it.next() - startx;
527 { -1 + res * avCharWidth - avCharHeight / 4,
528 -1 + res * avCharWidth + avCharHeight / 4,
529 -1 + res * avCharWidth },
531 { y, y, y + 2 * yOf }, 3);
535 // Draw the scale numbers
536 gg.setColor(Color.black);
539 List<ScaleMark> marks = new ScaleRenderer().calculateMarks(av, startx,
542 for (ScaleMark mark : marks)
544 boolean major = mark.major;
545 int mpos = mark.column; // (i - startx - 1)
546 String mstring = mark.text;
549 if (mpos * avCharWidth > maxX)
551 gg.drawString(mstring, mpos * avCharWidth, y);
552 maxX = (mpos + 2) * avCharWidth + fm.stringWidth(mstring);
557 gg.drawLine((mpos * avCharWidth) + (avCharWidth / 2), y + 2,
558 (mpos * avCharWidth) + (avCharWidth / 2), y + (yOf * 2));
562 gg.drawLine((mpos * avCharWidth) + (avCharWidth / 2), y + yOf,
563 (mpos * avCharWidth) + (avCharWidth / 2), y + (yOf * 2));
569 public void propertyChange(PropertyChangeEvent evt)
571 // Respond to viewport change events (e.g. alignment panel was scrolled)
572 // Both scrolling and resizing change viewport ranges: scrolling changes
573 // both start and end points, but resize only changes end values.
574 // Here we only want to fastpaint on a scroll, with resize using a normal
575 // paint, so scroll events are identified as changes to the horizontal or
576 // vertical start value.
577 if (evt.getPropertyName().equals(ViewportRanges.STARTRES)
578 || evt.getPropertyName().equals(ViewportRanges.STARTRESANDSEQ)
579 || evt.getPropertyName().equals(ViewportRanges.MOVE_VIEWPORT))
581 // scroll event, repaint panel
583 // Call repaint on alignment panel so that repaints from other alignment
584 // panel components can be aggregated. Otherwise performance of the
586 // window and others may be adversely affected.
587 av.getAlignPanel().repaint();