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.appletgui;
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.viewmodel.ViewportListenerI;
30 import jalview.viewmodel.ViewportRanges;
32 import java.awt.Color;
33 import java.awt.FontMetrics;
34 import java.awt.Graphics;
35 import java.awt.MenuItem;
36 import java.awt.Panel;
37 import java.awt.PopupMenu;
38 import java.awt.event.ActionEvent;
39 import java.awt.event.ActionListener;
40 import java.awt.event.InputEvent;
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.List;
47 public class ScalePanel extends Panel
48 implements MouseMotionListener, MouseListener, ViewportListenerI
51 protected int offy = 4;
55 protected AlignViewport av;
59 boolean stretchingGroup = false;
61 int min; // used by mouseDragged to see if user
63 int max; // used by mouseDragged to see if user
65 boolean mouseDragging = false;
69 public ScalePanel(AlignViewport av, AlignmentPanel ap)
75 addMouseListener(this);
76 addMouseMotionListener(this);
78 av.getRanges().addPropertyChangeListener(this);
82 public void mousePressed(MouseEvent evt)
84 int x = (evt.getX() / av.getCharWidth()) + av.getRanges().getStartRes();
87 if (av.hasHiddenColumns())
89 res = av.getAlignment().getHiddenColumns().adjustForHiddenColumns(x);
98 if ((evt.getModifiers()
99 & InputEvent.BUTTON3_MASK) == InputEvent.BUTTON3_MASK)
101 rightMouseButtonPressed(evt, res);
105 leftMouseButtonPressed(evt, res);
110 * Handles left mouse button pressed (selection / clear selections)
115 protected void leftMouseButtonPressed(MouseEvent evt, final int res)
117 if (!evt.isControlDown() && !evt.isShiftDown())
119 av.getColumnSelection().clear();
122 av.getColumnSelection().addElement(res);
123 SequenceGroup sg = new SequenceGroup();
124 for (int i = 0; i < av.getAlignment().getSequences().size(); i++)
126 sg.addSequence(av.getAlignment().getSequenceAt(i), false);
131 av.setSelectionGroup(sg);
133 if (evt.isShiftDown())
135 int min = Math.min(av.getColumnSelection().getMin(), res);
136 int max = Math.max(av.getColumnSelection().getMax(), res);
137 for (int i = min; i < max; i++)
139 av.getColumnSelection().addElement(i);
144 ap.paintAlignment(false, false);
149 * Handles right mouse button press. If pressed in a selected column, opens
150 * context menu for 'Hide Columns'. If pressed on a hidden columns marker,
151 * opens context menu for 'Reveal / Reveal All'. Else does nothing.
156 protected void rightMouseButtonPressed(MouseEvent evt, final int res)
158 PopupMenu pop = new PopupMenu();
161 MenuItem item = new MenuItem(
162 MessageManager.getString("label.reveal"));
163 item.addActionListener(new ActionListener()
166 public void actionPerformed(ActionEvent e)
168 av.showColumn(reveal[0]);
170 ap.paintAlignment(true, true);
176 if (av.getAlignment().getHiddenColumns().hasManyHiddenColumns())
178 item = new MenuItem(MessageManager.getString("action.reveal_all"));
179 item.addActionListener(new ActionListener()
182 public void actionPerformed(ActionEvent e)
184 av.showAllHiddenColumns();
186 ap.paintAlignment(true, true);
193 pop.show(this, evt.getX(), evt.getY());
195 else if (av.getColumnSelection().contains(res))
197 MenuItem item = new MenuItem(
198 MessageManager.getString("label.hide_columns"));
199 item.addActionListener(new ActionListener()
202 public void actionPerformed(ActionEvent e)
204 av.hideColumns(res, res);
205 if (av.getSelectionGroup() != null && av.getSelectionGroup()
206 .getSize() == av.getAlignment().getHeight())
208 av.setSelectionGroup(null);
211 ap.paintAlignment(true, true);
217 pop.show(this, evt.getX(), evt.getY());
222 public void mouseReleased(MouseEvent evt)
224 mouseDragging = false;
226 int res = (evt.getX() / av.getCharWidth())
227 + av.getRanges().getStartRes();
229 if (res > av.getAlignment().getWidth())
231 res = av.getAlignment().getWidth() - 1;
234 if (av.hasHiddenColumns())
236 res = av.getAlignment().getHiddenColumns()
237 .adjustForHiddenColumns(res);
240 if (!stretchingGroup)
242 ap.paintAlignment(false, false);
247 SequenceGroup sg = av.getSelectionGroup();
249 if (res > sg.getStartRes())
253 else if (res < sg.getStartRes())
258 stretchingGroup = false;
259 ap.paintAlignment(false, false);
264 * Action on dragging the mouse in the scale panel is to expand or shrink the
265 * selection group range (including any hidden columns that it spans)
270 public void mouseDragged(MouseEvent evt)
272 mouseDragging = true;
273 ColumnSelection cs = av.getColumnSelection();
275 int res = (evt.getX() / av.getCharWidth())
276 + av.getRanges().getStartRes();
277 res = Math.max(0, res);
278 res = av.getAlignment().getHiddenColumns().adjustForHiddenColumns(res);
279 res = Math.min(res, av.getAlignment().getWidth() - 1);
280 min = Math.min(res, min);
281 max = Math.max(res, max);
283 SequenceGroup sg = av.getSelectionGroup();
286 stretchingGroup = true;
287 cs.stretchGroup(res, sg, min, max);
288 ap.paintAlignment(false, false);
293 public void mouseEntered(MouseEvent evt)
297 ap.seqPanel.scrollCanvas(null);
302 public void mouseExited(MouseEvent evt)
306 ap.seqPanel.scrollCanvas(evt);
311 public void mouseClicked(MouseEvent evt)
317 public void mouseMoved(MouseEvent evt)
319 if (!av.hasHiddenColumns())
324 int res = (evt.getX() / av.getCharWidth())
325 + av.getRanges().getStartRes();
327 reveal = av.getAlignment().getHiddenColumns()
328 .getRegionWithEdgeAtRes(res);
334 public void update(Graphics g)
340 public void paint(Graphics g)
343 * shouldn't get called in wrapped mode as the scale above is
344 * drawn instead by SeqCanvas.drawNorthScale
346 if (!av.getWrapAlignment())
348 drawScale(g, av.getRanges().getStartRes(), av.getRanges().getEndRes(),
349 getSize().width, getSize().height);
353 // scalewidth will normally be screenwidth,
354 public void drawScale(Graphics gg, int startx, int endx, int width,
357 gg.setFont(av.getFont());
358 // Fill in the background
359 gg.setColor(Color.white);
360 gg.fillRect(0, 0, width, height);
361 gg.setColor(Color.black);
363 // Fill the selected columns
364 ColumnSelection cs = av.getColumnSelection();
365 HiddenColumns hidden = av.getAlignment().getHiddenColumns();
366 int avCharWidth = av.getCharWidth();
367 int avcharHeight = av.getCharHeight();
370 gg.setColor(new Color(220, 0, 0));
371 boolean hasHiddenColumns = hidden.hasHiddenColumns();
372 for (int sel : cs.getSelected())
374 // TODO: JAL-2001 - provide a fast method to list visible selected in a
376 if (hasHiddenColumns)
378 if (hidden.isVisible(sel))
380 sel = hidden.findColumnPosition(sel);
388 if ((sel >= startx) && (sel <= endx))
390 gg.fillRect((sel - startx) * avCharWidth, 0, avCharWidth,
396 // Draw the scale numbers
397 gg.setColor(Color.black);
400 List<ScaleMark> marks = new ScaleRenderer().calculateMarks(av, startx,
403 FontMetrics fm = gg.getFontMetrics(av.getFont());
404 int y = avcharHeight;
405 int yOf = fm.getDescent();
407 for (ScaleMark mark : marks)
409 boolean major = mark.major;
410 int mpos = mark.column; // (i - startx - 1)
411 String mstring = mark.text;
414 if (mpos * avCharWidth > maxX)
416 gg.drawString(mstring, mpos * avCharWidth, y);
417 maxX = (mpos + 2) * avCharWidth + fm.stringWidth(mstring);
422 gg.drawLine((mpos * avCharWidth) + (avCharWidth / 2), y + 2,
423 (mpos * avCharWidth) + (avCharWidth / 2), y + (yOf * 2));
427 gg.drawLine((mpos * avCharWidth) + (avCharWidth / 2), y + yOf,
428 (mpos * avCharWidth) + (avCharWidth / 2), y + (yOf * 2));
432 if (av.hasHiddenColumns())
434 gg.setColor(Color.blue);
436 if (av.getShowHiddenMarkers())
438 int widthx = 1 + endx - startx;
439 List<Integer> positions = hidden.findHiddenRegionPositions();
440 for (int pos : positions)
445 if (res < 0 || res > widthx)
452 { -1 + res * avCharWidth - avcharHeight / 4,
453 -1 + res * avCharWidth + avcharHeight / 4,
454 -1 + res * avCharWidth },
456 { y, y, y + 2 * yOf }, 3);
463 public void propertyChange(PropertyChangeEvent evt)
465 // Respond to viewport change events (e.g. alignment panel was scrolled)
466 // Both scrolling and resizing change viewport ranges: scrolling changes
467 // both start and end points, but resize only changes end values.
468 // Here we only want to fastpaint on a scroll, with resize using a normal
469 // paint, so scroll events are identified as changes to the horizontal or
470 // vertical start value.
471 if (evt.getPropertyName().equals(ViewportRanges.STARTRES)
472 || evt.getPropertyName().equals(ViewportRanges.STARTRESANDSEQ)
473 || evt.getPropertyName().equals(ViewportRanges.MOVE_VIEWPORT))
475 // scroll event, repaint panel