bundles/org.simantics.trend/src/org/simantics/trend/impl/Plot.java

   1 /*******************************************************************************
   2  * Industry THTH ry.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     VTT Technical Research Centre of Finland - initial API and implementation
  10  *******************************************************************************/
  11 package org.simantics.trend.impl;
  12
  13 import java.awt.AlphaComposite;
  14 import java.awt.BasicStroke;
  15 import java.awt.Color;
  16 import java.awt.Composite;
  17 import java.awt.Font;
  18 import java.awt.FontMetrics;
  19 import java.awt.GradientPaint;
  20 import java.awt.Graphics2D;
  21 import java.awt.Paint;
  22 import java.awt.font.GlyphVector;
  23 import java.awt.font.LineMetrics;
  24 import java.awt.geom.AffineTransform;
  25 import java.awt.geom.Line2D;
  26 import java.awt.geom.Path2D;
  27 import java.awt.geom.Point2D;
  28 import java.awt.geom.Rectangle2D;
  29 import java.text.Format;
  30 import java.text.NumberFormat;
  31 import java.text.ParseException;
  32 import java.util.ArrayList;
  33 import java.util.List;
  34
  35 import org.simantics.databoard.Bindings;
  36 import org.simantics.databoard.accessor.error.AccessorException;
  37 import org.simantics.databoard.binding.Binding;
  38 import org.simantics.databoard.binding.NumberBinding;
  39 import org.simantics.databoard.binding.error.BindingException;
  40 import org.simantics.g2d.utils.GridSpacing;
  41 import org.simantics.g2d.utils.GridUtil;
  42 import org.simantics.history.HistoryException;
  43 import org.simantics.history.util.Stream;
  44 import org.simantics.history.util.ValueBand;
  45 import org.simantics.scenegraph.utils.ColorUtil;
  46 import org.simantics.trend.configuration.TrendItem.Renderer;
  47 import org.simantics.trend.configuration.TrendSpec;
  48 import org.simantics.utils.format.TimeFormat;
  49
  50 public class Plot extends TrendGraphicalNode {
  51
  52     public static final double VALUE_TIP_BOX_PLOT_MARGIN = 7;
  53     private static final double VALUE_TIP_BOX_FILM_MARGIN = 5;
  54
  55     private static final long serialVersionUID = 6335497685577733932L;
  56
  57     public static final BasicStroke BORDER_LINE_STROKE =
  58             new BasicStroke(1.0f,
  59                     BasicStroke.CAP_SQUARE,
  60                     BasicStroke.JOIN_MITER,
  61                     10.0f, null, 0.0f);
  62
  63     public static final BasicStroke MILESTONE_LINE_STROKE =
  64             new BasicStroke(1.0f,
  65                     BasicStroke.CAP_SQUARE,
  66                     BasicStroke.JOIN_MITER,
  67                     10.0f, null, 0.0f);
  68
  69     public static final BasicStroke TREND_LINE_STROKE =
  70             new BasicStroke(1.0f,
  71                     BasicStroke.CAP_BUTT,
  72                     BasicStroke.JOIN_MITER,
  73                     10.0f, null, 0.0f);
  74
  75     public static final BasicStroke DASHED_LINE_STROKE =
  76                 new BasicStroke(2.0f,              // Width
  77                     BasicStroke.CAP_BUTT,    // End cap
  78                     BasicStroke.JOIN_MITER,    // Join style
  79                     5.0f,                      // Miter limit
  80                     new float[] {5.0f,5.0f}, // Dash pattern
  81                     0.0f);                     // Dash phase
  82     public static final BasicStroke DASHED_LINE_STROKE_2 =
  83                 new BasicStroke(2.0f,              // Width
  84                     BasicStroke.CAP_BUTT,    // End cap
  85                     BasicStroke.JOIN_MITER,    // Join style
  86                     5.0f,                      // Miter limit
  87                     new float[] {5.0f,5.0f}, // Dash pattern
  88                     5.0f);                     // Dash phase
  89     public static final BasicStroke DASHED_LINE_STROKE_INVERSE =
  90                 new BasicStroke(1.0f,              // Width
  91                     BasicStroke.CAP_BUTT,    // End cap
  92                     BasicStroke.JOIN_MITER,    // Join style
  93                     5.0f,                      // Miter limit
  94                     new float[] {3.0f,8.0f}, // Dash pattern
  95                     0.0f);                     // Dash phase
  96
  97     public static final Color PLOT_AREA_BG_GRADIENT_COLOR_TOP = new Color(228, 228, 248);
  98     public static final Color PLOT_AREA_BG_GRADIENT_COLOR_BOTTOM = new Color(250, 250, 250);
  99
 100     static final Font MILESTONE_FONT, BASELINE_FONT, TOOLTIP_FONT;
 101
 102     static final GridSpacing SOME_SPACING = GridSpacing.makeGridSpacing(100, 100, 15);
 103
 104     public static final Color GRID_LINE_COLOR = new Color(190, 190, 220);
 105
 106     static final double DIAMOND_SIZE = 7;
 107     static final Path2D DIAMOND;
 108
 109         double analogAreaHeight;
 110         double binaryAreaHeight;
 111
 112         Rectangle2D valueTipBoxBounds = new Rectangle2D.Double();
 113
 114         @SuppressWarnings("unused")
 115     @Override
 116         protected void doRender(Graphics2D g2d) {
 117                 //long startTime = System.nanoTime();
 118                 TrendNode trend = (TrendNode) getParent();
 119                 TrendSpec ts = trend.spec;
 120                 ViewRenderingProfile rprof = trend.renderingProfile;
 121                 double w = bounds.getWidth();
 122                 double h = bounds.getHeight();
 123
 124                 double from = trend.horizRuler.from;
 125                 double end = trend.horizRuler.end;
 126                 GridSpacing xGrid = trend.horizRuler.spacing;
 127                 GridSpacing yGrid = trend.vertRuler != null ? trend.vertRuler.spacing : Plot.SOME_SPACING;
 128
 129                 if (w<1. || h<1.) return;
 130
 131                 // Prepare data
 132                 if (trend.shapedirty) {
 133                         trend.shapedirty = false;
 134                         for (ItemNode node : trend.analogItems) prepareItem(node, 0, analogAreaHeight);
 135                         for (ItemNode node : trend.binaryItems) prepareItem(node, 0, analogAreaHeight);
 136                 }
 137
 138                 // Fill gradient
 139                 Gradient: {
 140                         Paint bgp = rprof.backgroundColor2 == null ? rprof.backgroundColor1
 141                                         : new GradientPaint(
 142                                                         0.f, (float) h, rprof.backgroundColor1,
 143                                                         0.f, 0.f, rprof.backgroundColor2, false);
 144 //                      g2d.setPaint(Color.white);
 145                         g2d.setPaint( bgp );
 146                         g2d.fill(bounds);
 147                 }
 148
 149                 // Draw grid lines
 150                 GridLines: if (ts.viewProfile.showGrid) {
 151                         g2d.setPaint( rprof.gridColor );
 152                         g2d.setStroke( GridUtil.GRID_LINE_STROKE );
 153                         GridUtil.paintGridLines(
 154                                 xGrid, yGrid,
 155                                 g2d,
 156                                 from - trend.horizRuler.basetime,
 157                                 trend.vertRuler != null ? trend.vertRuler.min : 0,
 158                                 w,
 159                                 h,
 160                                 analogAreaHeight);
 161                 }
 162
 163                 Rectangle2D oldClip = g2d.getClipBounds();
 164
 165                 // Draw analog items
 166                 AnalogItems: if ( !trend.analogItems.isEmpty() ) {
 167                         Rectangle2D analogAreaClip = new Rectangle2D.Double(0, 0, getWidth(), analogAreaHeight);
 168                         g2d.setClip( analogAreaClip );
 169
 170                         for (int phase=0; phase<4; phase++) {
 171                                 for (int i=0; i<trend.analogItems.size(); i++) {
 172                                         ItemNode data = trend.analogItems.get(i);
 173                                         drawItem(g2d, data, 0, analogAreaHeight, phase);
 174                                 }
 175                         }
 176                         g2d.setClip(oldClip);
 177                 }
 178
 179                 Separator: if ( !trend.analogItems.isEmpty() && !trend.binaryItems.isEmpty() ) {
 180                         g2d.setColor( Color.BLACK );
 181                         g2d.setStroke( GridUtil.GRID_LINE_STROKE );
 182                         g2d.drawLine(0, (int) analogAreaHeight, (int) getWidth(), (int) analogAreaHeight);
 183                 }
 184
 185                 // Draw binary items
 186                 BinaryItems: if ( !trend.binaryItems.isEmpty() ) {
 187                         Rectangle2D binaryAreaClip = new Rectangle2D.Double(0, analogAreaHeight, getWidth(), binaryAreaHeight);
 188                         g2d.setClip( binaryAreaClip );
 189                         for (int phase=0; phase<4; phase++) {
 190                                 for (int i=0; i<trend.binaryItems.size(); i++) {
 191                                         ItemNode data = trend.binaryItems.get(i);
 192                                         double y = analogAreaHeight + i*BINARY[3];
 193                                         drawItem(g2d, data, y, BINARY[2], phase);
 194                                 }
 195                         }
 196                         g2d.setClip(oldClip);
 197
 198                         // Draw labels
 199                         g2d.setFont( RULER_FONT );
 200                         for (int i=0; i<trend.binaryItems.size(); i++)
 201                         {
 202                                 ItemNode data = trend.binaryItems.get(i);
 203                                 g2d.setColor( data.color );
 204                                 double fh = 9.; // font height
 205                                 double y = analogAreaHeight + i*BINARY[3] + 1.f;
 206                                 double fy = y+(BINARY[3]-fh)/2+fh;
 207                                 g2d.drawString( data.item.label, ((float) getWidth())+7.f, (float) fy);
 208                         }
 209                 }
 210
 211                 // Draw milestones
 212                 Milestone: if (ts.viewProfile.showMilestones) {
 213                         double sx = getWidth() / ( end - from );
 214                         MilestoneSpec mss = trend.milestones;
 215                         List<Milestone> ls = mss.milestones;
 216                         if ( ls.isEmpty() ) break Milestone;
 217
 218                         Line2D line = new Line2D.Double(0, 0, 0, h);
 219                         g2d.setStroke( MILESTONE_LINE_STROKE );
 220                         Rectangle2D diamondRegion = new Rectangle2D.Double(0, -DIAMOND_SIZE*2, w, DIAMOND_SIZE*2);
 221
 222                         for (int i=mss.milestones.size()-1; i>=0; i--) {
 223                                 Milestone ms = mss.milestones.get( i );
 224                                 if ( ms.hidden ) continue;
 225                                 boolean isBaseline = i == mss.baseline;
 226                                 double time = ms.time;
 227                                 double x = (time-from)*sx;
 228                                 if (x<-DIAMOND_SIZE*2 || x>w+DIAMOND_SIZE*2) continue;
 229                                 x = Math.floor(x);
 230
 231                                 // Diamond
 232                                 g2d.setClip(diamondRegion);
 233                                 g2d.translate( x, 0);
 234                                 g2d.setColor( isBaseline ? Color.LIGHT_GRAY : Color.DARK_GRAY );
 235                                 g2d.fill( DIAMOND );
 236                                 g2d.setColor( Color.BLACK );
 237                                 g2d.draw( DIAMOND );
 238
 239                                 // Text
 240                                 Font f = isBaseline ? BASELINE_FONT : MILESTONE_FONT;
 241                                 g2d.setFont( f );
 242                                 g2d.setColor( isBaseline ? Color.black : Color.ORANGE );
 243                                 GlyphVector glyphVector = f.createGlyphVector(g2d.getFontRenderContext(), ms.label);
 244                     double cx = glyphVector.getVisualBounds().getCenterX();
 245                     double cy = glyphVector.getVisualBounds().getHeight();
 246                                 g2d.drawString(ms.label, (float)(-cx), (float)(-DIAMOND_SIZE+cy/2) );
 247                                 g2d.setClip( null );
 248
 249                                 // Line
 250                                 if (x>=0 && x<w) {
 251                                         g2d.setColor( Color.BLACK );
 252                                         g2d.draw( line );
 253                                 }
 254
 255                                 g2d.translate(-x, 0);
 256                         }
 257                 }
 258
 259                 // Draw hover marker
 260                 Hoverer: {
 261                         Double time = trend.valueTipTime;
 262                         if ( time != null && time>=from && time<=end && !Double.isNaN(time)) {
 263                                 double sx = getWidth() / ( end - from );
 264                                 double x = (time-from)*sx;
 265                                 Line2D line = new Line2D.Double(x, 0, x, h);
 266                                 g2d.setStroke( DASHED_LINE_STROKE_2 );
 267                                 g2d.setColor( trend.valueTipHover ? Color.GRAY : Color.WHITE );
 268                                 g2d.draw( line );
 269
 270                                 g2d.setStroke( DASHED_LINE_STROKE );
 271                                 g2d.setColor( Color.BLACK );
 272                                 g2d.draw( line );
 273
 274 //                              g2d.setStroke( DASHED_LINE_STROKE_INVERSE );
 275 //                              g2d.setColor( Color.white );
 276 //                              g2d.draw( line );
 277                         }
 278                 }
 279
 280                 // Draw border
 281                 Border: {
 282                         g2d.setStroke(BORDER_LINE_STROKE);
 283                         g2d.setColor( Color.BLACK );
 284                         Rectangle2D rect = new Rectangle2D.Double();
 285                         rect.setFrame(0, 0, w, h);
 286                         g2d.draw(rect);
 287                 }
 288
 289                 //long endTime = System.nanoTime();
 290 //              System.out.println("Plot render: "+((double)(endTime-startTime)/1000000)+" ms");
 291         }
 292
 293         public void drawItem(Graphics2D g, ItemNode data, double y, double height, int phase) {
 294                 TrendNode trend = getTrend();
 295                 double from = trend.horizRuler.from;
 296                 double end = trend.horizRuler.end;
 297
 298 //              trend.vertRulerIndex
 299 //              boolean selected = trend.singleAxis ? false : trend.vertRuler
 300 //              selected &= !trend.printing;
 301
 302                 VertRuler ruler = data.ruler;
 303                 AffineTransform at = g.getTransform();
 304                 try {
 305                         //double pixelsPerSecond = (end-from) / getWidth();
 306                         g.translate(0, y);
 307                         g.setStroke(data.stroke);
 308
 309                         AffineTransform ab = new AffineTransform();
 310                         if (data.item.renderer == Renderer.Analog) {
 311                                 ab.scale( getWidth()/(end-from), height/(ruler.min-ruler.max) );
 312                                 ab.translate(-from, -ruler.max);
 313 //                              if (phase == 0) data.prepareLine(from, end, pixelsPerSecond, ab);
 314                                 data.draw(g, phase, false);
 315                         }
 316                         if (data.item.renderer == Renderer.Binary) {
 317                                 ab.scale( getWidth()/(end-from), 1/*height*/ );
 318                                 ab.translate(-from, 0);
 319 //                              if (phase == 0) data.prepareLine(from, end, pixelsPerSecond, ab);
 320                                 data.draw(g, phase, false);
 321                         }
 322 //              } catch (HistoryException e) {
 323 //                      e.printStackTrace();
 324 //              } catch (AccessorException e) {
 325 //                      e.printStackTrace();
 326                 } finally {
 327                         g.setTransform(at);
 328                 }
 329         }
 330
 331         /**
 332          * Prepare item for draw.
 333          *
 334          * @param data
 335          * @param y
 336          * @param height
 337          */
 338         public void prepareItem(ItemNode data, double y, double height) {
 339                 TrendNode tn = getTrend();
 340                 double from = tn.horizRuler.from;
 341                 double end = tn.horizRuler.end;
 342
 343                 VertRuler ruler = data.ruler;
 344                 try {
 345                         double pixelsPerSecond = (end-from) / getWidth();
 346
 347                         AffineTransform ab = new AffineTransform();
 348                         if (data.item.renderer == Renderer.Analog) {
 349                                 ab.scale( getWidth()/(end-from), height/(ruler.min-ruler.max) );
 350                                 ab.translate(-from, -ruler.max);
 351                                 data.prepareLine(from, end, pixelsPerSecond, ab);
 352                         }
 353                         if (data.item.renderer == Renderer.Binary) {
 354                                 ab.scale( getWidth()/(end-from), 1/*height*/ );
 355                                 ab.translate(-from, 0);
 356                                 data.prepareLine(from, end, pixelsPerSecond, ab);
 357                         }
 358                 } catch (HistoryException e) {
 359                         e.printStackTrace();
 360                 } catch (AccessorException e) {
 361                         e.printStackTrace();
 362                 }
 363         }
 364
 365         static {
 366
 367                 DIAMOND = new Path2D.Double();
 368                 DIAMOND.moveTo(0, -DIAMOND_SIZE*2);
 369                 DIAMOND.lineTo(DIAMOND_SIZE, -DIAMOND_SIZE);
 370                 DIAMOND.lineTo(0, 0);
 371                 DIAMOND.lineTo(-DIAMOND_SIZE, -DIAMOND_SIZE);
 372                 DIAMOND.lineTo(0, -DIAMOND_SIZE*2);
 373
 374                 MILESTONE_FONT = new Font("Tahoma", 0, (int) (DIAMOND_SIZE*1.2) );
 375                 BASELINE_FONT = new Font("Tahoma", Font.BOLD, (int) (DIAMOND_SIZE*1.2) );
 376                 TOOLTIP_FONT = new Font("Tahoma", 0, 13 );
 377         }
 378
 379
 380         ///  ValueTip
 381         public static final AlphaComposite composite66 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .80f);
 382
 383         void drawValuetip( Graphics2D g, double time ) throws HistoryException, BindingException {
 384                 TrendNode trend = getTrend();
 385                 Font font = TOOLTIP_FONT;
 386                 FontMetrics fm = g.getFontMetrics( font );
 387
 388                 //double from = trend.horizRuler.from;
 389                 //double end = trend.horizRuler.end;
 390                 //double pixelsPerSecond = (end-from) / trend.plot.getWidth();
 391
 392                 double marginInPlot = VALUE_TIP_BOX_PLOT_MARGIN;
 393                 double marginOnFilm = VALUE_TIP_BOX_FILM_MARGIN;
 394                 double marginBetweenNamesAndValues = 16;
 395                 double quantumWidthOfValueArea = 20;
 396                 double marginBetweenLines = 5;
 397                 double textAreaHeight = 0;
 398                 double textAreaWidth = 0;
 399                 double valueAreaLeft = 0;
 400                 double valueAreaRight = 0;
 401                 double valueAreaWidth = 0;
 402
 403                 double x, y, w, h;
 404
 405                 List<TipLine> tipLines = new ArrayList<TipLine>( trend.allItems.size()+1 );
 406
 407                 /// Initialize
 408                 // Add time
 409                 {
 410                         TipLine tl = new TipLine();
 411                         tipLines.add(tl);
 412                         tl.label = "Time";
 413                         LineMetrics lm = fm.getLineMetrics(tl.label, g);
 414                         tl.height = lm.getHeight();
 415                         tl.labelBaseline = fm.getAscent();
 416                         textAreaHeight += marginBetweenLines;
 417                         textAreaHeight += tl.height;
 418                         tl.labelWidth = fm.stringWidth( tl.label );
 419                         textAreaWidth = Math.max(tl.labelWidth, textAreaWidth);
 420                         tl.color = Color.WHITE;
 421
 422                         Format f = NumberFormat.getInstance();
 423                         if (trend.timeFormat == org.simantics.trend.configuration.TimeFormat.Time) {
 424                                 f = new TimeFormat(trend.horizRuler.iEnd, 3);
 425                         }
 426                         double t = time - trend.horizRuler.basetime;
 427                         String formattedTime = f.format( time - trend.horizRuler.basetime );
 428                         double roundedTime = t;
 429                         try {
 430                                 roundedTime = (Double) f.parseObject(formattedTime);
 431                         } catch (ParseException e) {
 432                                 // Should never happen.
 433                         }
 434                         boolean actuallyLessThan = t < roundedTime;
 435                         boolean actuallyMoreThan = t > roundedTime;
 436                         tl.value = actuallyLessThan ? "< " + formattedTime
 437                                         : actuallyMoreThan ? "> " + formattedTime
 438                                         : formattedTime;
 439                         tl.valueWidth = fm.stringWidth( tl.value );
 440                         valueAreaWidth = Math.max(valueAreaWidth, tl.valueWidth);
 441                 }
 442
 443                 // Add items
 444                 nextItem:
 445                 for ( ItemNode i : trend.allItems )
 446                 {
 447                         TipLine tl = new TipLine();
 448                         tipLines.add(tl);
 449                         // Get Label
 450                         tl.label = i.item.label;
 451                         LineMetrics lm = fm.getLineMetrics(tl.label, g);
 452                         tl.height = lm.getHeight();
 453                         tl.labelBaseline = fm.getAscent();
 454                         textAreaHeight += tl.height;
 455                         textAreaHeight += marginBetweenLines;
 456                         tl.labelWidth = fm.stringWidth( tl.label );
 457                         textAreaWidth = Math.max(tl.labelWidth, textAreaWidth);
 458                         tl.color = ColorUtil.gamma( i.color, 0.55 );
 459
 460                         // Get Value
 461                         Stream s = i.openStream( /*pixelsPerSecond*/0 );
 462                         if ( s!=null ) {
 463
 464                                 int index = s.binarySearch(Bindings.DOUBLE, time);
 465                                 if (index<0) index = -index-2;
 466                                 if ( index<0 || index>=s.count() ) continue nextItem;
 467                                 boolean isLast = index+1>=s.count();
 468
 469
 470                                 ValueBand vb = new ValueBand(s.sampleBinding);
 471                                 try {
 472                                         vb.setSample( s.accessor.get(index, s.sampleBinding) );
 473                                 } catch (AccessorException e) {
 474                                         throw new HistoryException(e);
 475                                 }
 476
 477                                 if ( vb.getSample()!=null ) {
 478
 479                                         // gitlab #54: this can cause the value tip to not render values at all
 480                                         // for items that have not been flushed at the point in time when this drawing
 481                                         // is done. These circumstances are always temporary and later refreshes will
 482                                         // remedy the situation. Having this logic can cause item values to randomly
 483                                         // not be shown which is actually even more confusing to the user than rendering
 484                                         // the latest flushed sample value.
 485                                         //
 486                                         // For this reason, the if below has been commented out.
 487                                         //if (isLast && vb.hasEndTime() && vb.getEndTimeDouble()<time) continue nextItem;
 488
 489                                         if ( !vb.isNanSample() && !vb.isNullValue() ) {
 490                                                 Binding b = vb.getValueBinding();
 491                                                 if ( b instanceof NumberBinding) {
 492                                                         double v = vb.getValueDouble();
 493                                                         tl.value = trend.valueFormat.format.format( v );
 494                                                         tl.number = true;
 495
 496                                                         int desimalPos = tl.value.indexOf('.');
 497                                                         if (desimalPos<0) desimalPos = tl.value.indexOf(',');
 498                                                         if ( desimalPos>=0 ) {
 499                                                                 String beforeDesimal = tl.value.substring(0, desimalPos);
 500                                                                 String afterDesimal = tl.value.substring(desimalPos, tl.value.length());
 501                                                                 tl.valueLeftWidth = fm.stringWidth(beforeDesimal);
 502                                                                 tl.valueRightWidth = fm.stringWidth(afterDesimal);
 503                                                                 tl.valueWidth = tl.valueLeftWidth + tl.valueRightWidth;
 504                                                         } else {
 505                                                                 tl.valueWidth = tl.valueLeftWidth = fm.stringWidth(tl.value);
 506                                                         }
 507
 508                                                         valueAreaWidth = Math.max(valueAreaWidth, tl.valueLeftWidth+tl.valueRightWidth);
 509                                                         valueAreaLeft = Math.max(valueAreaLeft, tl.valueLeftWidth);
 510                                                         valueAreaRight = Math.max(valueAreaRight, tl.valueRightWidth);
 511                                                 } else {
 512                                                         Object v = vb.getValue();
 513                                                         tl.value = b.toString(v);
 514                                                         tl.number = false;
 515                                                         tl.valueLeftWidth = tl.valueRightWidth = fm.stringWidth( tl.value );
 516                                                         valueAreaWidth = Math.max(valueAreaWidth, tl.valueLeftWidth);
 517                                                 }
 518                                         }
 519                                 }
 520                         }
 521                 }
 522
 523                 // Layout
 524                 double halfQuantum = quantumWidthOfValueArea/2;
 525                 valueAreaWidth = Math.ceil( valueAreaWidth / quantumWidthOfValueArea ) * quantumWidthOfValueArea;
 526                 valueAreaLeft = Math.ceil( valueAreaLeft / halfQuantum ) * halfQuantum;
 527                 valueAreaRight = Math.ceil( valueAreaRight / halfQuantum ) * halfQuantum;
 528                 double finalValueAreaWidth = Math.max(valueAreaWidth, valueAreaLeft + valueAreaRight);
 529                 w = marginOnFilm + textAreaWidth + marginBetweenNamesAndValues + finalValueAreaWidth + marginOnFilm + 0;
 530                 h = marginOnFilm + textAreaHeight + marginOnFilm;
 531                 double maxX = trend.plot.getWidth() - marginInPlot - w;
 532                 double maxY = trend.plot.getHeight() - marginInPlot - h;
 533                 x = marginInPlot + (maxX - marginInPlot)*trend.spec.viewProfile.valueViewPositionX;
 534                 y = marginInPlot + (maxY - marginInPlot)*trend.spec.viewProfile.valueViewPositionY;
 535
 536                 if ( x < TrendLayout.VERT_MARGIN ) x = TrendLayout.VERT_MARGIN;
 537
 538                 valueTipBoxBounds.setFrame(x, y, w, h);
 539                 //System.out.println("value tip bounds: " + valueTipBounds);
 540
 541                 // Draw
 542                 Rectangle2D rect = new Rectangle2D.Double(0, 0, w, h);
 543                 Composite oldComposite = g.getComposite();
 544                 AffineTransform oldTransform = g.getTransform();
 545                 try {
 546                         g.setComposite(composite66);
 547                         g.translate(x, y);
 548                         g.setColor(Color.BLACK);
 549                         g.fill( rect );
 550                         g.setFont( font );
 551                         g.setComposite(oldComposite);
 552
 553                         y = marginInPlot;
 554                         for (TipLine tl : tipLines) {
 555                                 g.setColor( tl.color );
 556                                 x = marginInPlot;
 557                                 g.drawString( tl.label, (float)x, (float)(y+tl.labelBaseline));
 558
 559                                 if ( tl.value!=null ) {
 560                                         x = marginInPlot + textAreaWidth + marginBetweenNamesAndValues;
 561                                         if ( tl.number ) {
 562                                                 x += valueAreaLeft - tl.valueLeftWidth;
 563                                         } else {
 564                                                 x += (finalValueAreaWidth - tl.valueWidth)/2;
 565                                         }
 566                                         g.drawString(tl.value, (float) x, (float) (y+tl.labelBaseline));
 567                                 }
 568
 569                                 y+=tl.height;
 570                                 y+=marginBetweenLines;
 571                         }
 572
 573                 } finally {
 574                         g.setTransform( oldTransform );
 575                         g.setComposite( oldComposite );
 576                 }
 577         }
 578
 579         static class TipLine {
 580                 String label, value;
 581                 Color color;
 582                 double labelWidth, height, valueLeftWidth, valueRightWidth, valueWidth, labelBaseline;
 583                 boolean number;
 584
 585                 @Override
 586                 public String toString() {
 587                         return "TipLine[label=" + label + ", value=" + value + ", color=" + color + ", labelWidth=" + labelWidth
 588                                         + ", height=" + height + ", valueLeftWidth=" + valueLeftWidth + ", valueRightWidth="
 589                                         + valueRightWidth + ", valueWidth=" + valueWidth + ", labelBaseline=" + labelBaseline + ", number="
 590                                         + number + "]";
 591                 }
 592         }
 593
 594         public void renderValueTip(Graphics2D g2d) {
 595                 TrendNode trend = getTrend();
 596                 if ( trend.valueTipTime != null ) {
 597                         AffineTransform at = g2d.getTransform();
 598                         try {
 599                                 g2d.transform( getTransform() );
 600                                 drawValuetip( g2d, trend.valueTipTime );
 601                         } catch (HistoryException e) {
 602                                 e.printStackTrace();
 603                         } catch (BindingException e) {
 604                                 e.printStackTrace();
 605                         } finally {
 606                                 g2d.setTransform( at );
 607                         }
 608                 }
 609         }
 610
 611         /**
 612          * Pick item (Binary node)
 613          *
 614          * @param pt coordinate in trend coordinate system
 615          * @return item node
 616          */
 617         public ItemNode pickItem(Point2D pt)
 618         {
 619                 TrendNode trend = getTrend();
 620                 double y = pt.getY()-getY();
 621                 double x = pt.getX()-getX();
 622                 if (y<analogAreaHeight || y>analogAreaHeight+binaryAreaHeight) return null;
 623                 if (x<0 || x+getX()>trend.getBounds().getWidth()) return null;
 624                 for (int i=0; i<trend.binaryItems.size(); i++) {
 625                         double sy = analogAreaHeight + i*BINARY[3];
 626                         double ey = analogAreaHeight + (i+1)*BINARY[3];
 627                         if ( y>=sy && y<ey ) return trend.binaryItems.get(i);
 628                 }
 629                 return null;
 630         }
 631
 632 }