2 * Jalview - A Sequence Alignment Editor and Viewer
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3 * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
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5 * This program is free software; you can redistribute it and/or
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6 * modify it under the terms of the GNU General Public License
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7 * as published by the Free Software Foundation; either version 2
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8 * of the License, or (at your option) any later version.
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program; if not, write to the Free Software
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17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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20 package jalview.appletgui;
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23 import java.awt.event.*;
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25 public class OverviewPanel
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26 extends Panel implements Runnable
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34 public int width, sequencesHeight;
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35 int graphHeight = 30;
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36 int boxX = -1, boxY = -1, boxWidth = -1, boxHeight = -1;
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38 boolean resizing = false;
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42 public OverviewPanel(AlignmentPanel ap)
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47 nullFrame = new Frame();
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48 nullFrame.addNotify();
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50 // scale the initial size of overviewpanel to shape of alignment
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51 float initialScale = (float) av.alignment.getWidth() /
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52 (float) av.alignment.getHeight();
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53 if (av.alignment.getWidth() > av.alignment.getHeight())
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57 sequencesHeight = (int) (400f / initialScale);
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62 width = (int) (400f * initialScale);
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63 sequencesHeight = 300;
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70 setSize(new Dimension(width, sequencesHeight + graphHeight));
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71 addComponentListener(new ComponentAdapter()
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74 public void componentResized(ComponentEvent evt)
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76 if (getSize().width != width ||
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77 getSize().height != sequencesHeight + graphHeight)
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79 updateOverviewImage();
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84 addMouseMotionListener(new MouseMotionAdapter()
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86 public void mouseDragged(MouseEvent evt)
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88 doMouseDragged(evt);
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92 addMouseListener(new MouseAdapter()
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94 public void mousePressed(MouseEvent evt)
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96 doMousePressed(evt);
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99 public void mouseReleased(MouseEvent evt)
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101 doMouseReleased(evt);
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105 updateOverviewImage();
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109 public void doMousePressed(MouseEvent evt)
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118 public void doMouseReleased(MouseEvent evt)
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125 ap.setScrollValues( (int) (boxX / scalew / av.getCharWidth()),
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126 (int) (boxY / scaleh / av.getCharHeight()));
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130 public void doMouseDragged(MouseEvent evt)
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137 ap.setScrollValues( (int) (boxX / scalew / av.getCharWidth()),
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138 (int) (boxY / scaleh / av.getCharHeight()));
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151 if (boxY > sequencesHeight - boxHeight)
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153 boxY = sequencesHeight - boxHeight + 1;
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161 if (boxX > width - boxWidth)
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163 boxX = width - boxWidth;
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170 public void updateOverviewImage()
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174 resizeAgain = true;
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180 Thread thread = new Thread(this);
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185 // This is set true if the user resizes whilst
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186 // the overview is being calculated
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187 boolean resizeAgain = false;
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192 int alwidth = av.alignment.getWidth();
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193 int alheight = av.alignment.getHeight();
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195 if (getSize().width > 0 && getSize().height > 0)
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197 width = getSize().width;
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198 sequencesHeight = getSize().height - graphHeight;
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201 setSize(new Dimension(width, sequencesHeight + graphHeight));
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203 int fullsizeWidth = alwidth * av.getCharWidth();
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204 int fullsizeHeight = alheight * av.getCharHeight();
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206 scalew = (float) width / (float) fullsizeWidth;
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207 scaleh = (float) sequencesHeight / (float) fullsizeHeight;
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209 miniMe = nullFrame.createImage(width, sequencesHeight + graphHeight);
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211 Graphics mg = miniMe.getGraphics();
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212 Image consensus = nullFrame.createImage(fullsizeWidth, 60);
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213 Graphics g = consensus.getGraphics();
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214 ap.annotationPanel.drawGraph(g, av.conservation, fullsizeWidth, 60);
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215 mg.drawImage(consensus, 0, sequencesHeight, width,
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216 sequencesHeight + graphHeight, 0, 0, fullsizeWidth, 60, this);
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218 boolean oldRenderGaps = av.renderGaps;
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221 // We'll have to draw the full size alignment in chunks, as an image of the
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222 // whole alignment requires too much memory
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224 // Max size depends on the font size, the following is a
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225 // guess at a size which works
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226 int maxSize = 2000 / av.getFont().getSize();
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228 int blockx = 0, blocky = 0, blockw = 0, blockh = 0, eRes = 0, eSeq = 0;
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230 av.setRenderGaps(false);
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231 for (int sRes = 0, chunkx = 0; sRes < alwidth; sRes += maxSize, chunkx++)
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235 if (eRes > alwidth)
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240 for (int sSeq = 0, chunky = 0; sSeq < alheight; sSeq += maxSize, chunky++)
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246 if (eSeq > alheight)
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252 blockx = (int) ( (float) sRes / (float) alwidth * width);
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254 block = nullFrame.createImage( (eRes - sRes) * av.charWidth,
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255 (eSeq - sSeq) * av.charHeight);
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256 g = block.getGraphics();
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258 ap.seqPanel.seqCanvas.drawPanel(g, sRes, eRes, sSeq, eSeq, sRes, sSeq,
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261 blockh = (int) ( (float) (eSeq - sSeq) / (float) alheight *
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262 sequencesHeight) + 1;
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263 blockw = (int) ( (float) (eRes - sRes) / (float) alwidth * width) + 1;
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265 blocky += (int) ( (float) sSeq / (float) alheight * sequencesHeight);
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267 mg.drawImage(block, blockx,
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272 0, 0, block.getWidth(null), block.getHeight(null), this);
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280 catch (OutOfMemoryError error)
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282 System.err.println(
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283 "Out of memory when trying to calculate the overview window image!");
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288 av.setRenderGaps(oldRenderGaps);
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295 resizeAgain = false;
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296 updateOverviewImage();
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300 public void setBoxPosition()
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302 boxX = (int) (av.getStartRes() * av.getCharWidth() * scalew);
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303 boxY = (int) (av.getStartSeq() * av.getCharHeight() * scaleh);
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304 boxWidth = (int) ( (av.getEndRes() - av.getStartRes() + 1) *
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305 av.getCharWidth() * scalew);
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306 boxHeight = (int) (av.getEndSeq() * av.getCharHeight() * scaleh) - boxY;
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310 public void update(Graphics g)
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315 public void paint(Graphics g)
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319 g.setColor(Color.white);
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320 g.fillRect(0, 0, getSize().width, getSize().height);
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321 g.setColor(Color.black);
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323 g.setFont(new Font("Verdana", Font.BOLD, 15));
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324 g.drawString("Recalculating", 5, sequencesHeight / 2);
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325 g.drawString("Overview.....", 5, sequencesHeight / 2 + 20);
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329 if (miniMe != null)
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331 g.drawImage(miniMe, 0, 0, this);
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334 g.setColor(Color.red);
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335 g.drawRect(boxX, boxY, boxWidth, boxHeight);
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336 g.drawRect(boxX + 1, boxY + 1, boxWidth - 2, boxHeight - 2);
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