Examples of com.xeiam.xchart.StyleManager

com.xeiam.xchart.StyleManager
The StyleManager is used to manage all things related to styling of the vast number of Chart components @author timmolter

  public ChartPainter(int width, int height) {


    this.width = width;
    this.height = height;


    styleManager = new StyleManager();


    chartLegend = new Legend(this);
    axisPair = new AxisPair(this);
    plot = new Plot(this);
    chartTitle = new ChartTitle(this);

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    Rectangle2D bounds = plot.getBounds();
    // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    // g.setColor(Color.red);
    // g.draw(bounds);


    StyleManager styleManager = plot.getChartPainter().getStyleManager();


    // this is for preventing the series to be drawn outside the plot area if min and max is overridden to fall inside the data range
    Rectangle rectangle = new Rectangle(0, 0, getChartPainter().getWidth(), getChartPainter().getHeight());
    // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    // g.setColor(Color.green);
    // g.draw(rectangle);
    g.setClip(bounds.createIntersection(rectangle));


    // X-Axis
    double xTickSpace = styleManager.getAxisTickSpacePercentage() * bounds.getWidth();
    double xLeftMargin = Utils.getTickStartOffset(bounds.getWidth(), xTickSpace);


    // Y-Axis
    double yTickSpace = styleManager.getAxisTickSpacePercentage() * bounds.getHeight();
    double yTopMargin = Utils.getTickStartOffset(bounds.getHeight(), yTickSpace);


    int numBars = getChartPainter().getAxisPair().getSeriesMap().values().iterator().next().getXData().size();
    double gridStep = xTickSpace / numBars;

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    if (!chartPainter.getStyleManager().isLegendVisible()) {
      return new double[] { 0, 0 };
    }


    StyleManager styleManager = getChartPainter().getStyleManager();
    boolean isBar = styleManager.getChartType() == ChartType.Bar;


    // determine legend text content max width
    double legendTextContentMaxWidth = 0;


    // determine legend content height
    double legendContentHeight = 0;


    for (Series series : chartPainter.getAxisPair().getSeriesMap().values()) {


      Map<String, Rectangle2D> seriesBounds = getSeriesTextBounds(series, g);


      double blockHeight = 0;
      for (Map.Entry<String, Rectangle2D> entry : seriesBounds.entrySet()) {
        blockHeight += entry.getValue().getHeight() + MULTI_LINE_SPACE;
        legendTextContentMaxWidth = Math.max(legendTextContentMaxWidth, entry.getValue().getWidth());
      }


      blockHeight -= MULTI_LINE_SPACE;
      blockHeight = Math.max(blockHeight, isBar ? BOX_SIZE : getChartPainter().getStyleManager().getMarkerSize());


      legendContentHeight += blockHeight + styleManager.getLegendPadding();
    }


    // determine legend content width
    double legendContentWidth = 0;
    if (!isBar) {
      legendContentWidth = styleManager.getLegendSeriesLineLength() + styleManager.getLegendPadding() + legendTextContentMaxWidth;
    }
    else {
      legendContentWidth = BOX_SIZE + styleManager.getLegendPadding() + legendTextContentMaxWidth;
    }


    // Legend Box
    double legendBoxWidth = legendContentWidth + 2 * styleManager.getLegendPadding();
    double legendBoxHeight = legendContentHeight + 1 * styleManager.getLegendPadding();
    return new double[] { legendBoxWidth, legendBoxHeight };
  }

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  public void paint(Graphics2D g) {


    bounds = new Rectangle2D.Double();
    // g.setFont(chartPainter.getStyleManager().getLegendFont());


    StyleManager styleManager = getChartPainter().getStyleManager();


    if (!styleManager.isLegendVisible()) {
      return;
    }


    final double[] sizeHint = getSizeHint(g);


    double legendBoxWidth = sizeHint[0];
    double legendBoxHeight = sizeHint[1];


    // legend draw position
    double xOffset = 0;
    double yOffset = 0;
    switch (styleManager.getLegendPosition()) {
    case OutsideE:
      xOffset = chartPainter.getWidth() - legendBoxWidth - styleManager.getChartPadding();
      yOffset = chartPainter.getPlot().getBounds().getY() + (chartPainter.getPlot().getBounds().getHeight() - legendBoxHeight) / 2.0;
      break;
    case InsideNW:
      xOffset = chartPainter.getPlot().getBounds().getX() + LEGEND_MARGIN;
      yOffset = chartPainter.getPlot().getBounds().getY() + LEGEND_MARGIN;
      break;
    case InsideNE:
      xOffset = chartPainter.getPlot().getBounds().getX() + chartPainter.getPlot().getBounds().getWidth() - legendBoxWidth - LEGEND_MARGIN;
      yOffset = chartPainter.getPlot().getBounds().getY() + LEGEND_MARGIN;
      break;
    case InsideSE:
      xOffset = chartPainter.getPlot().getBounds().getX() + chartPainter.getPlot().getBounds().getWidth() - legendBoxWidth - LEGEND_MARGIN;
      yOffset = chartPainter.getPlot().getBounds().getY() + chartPainter.getPlot().getBounds().getHeight() - legendBoxHeight - LEGEND_MARGIN;
      break;
    case InsideSW:
      xOffset = chartPainter.getPlot().getBounds().getX() + LEGEND_MARGIN;
      yOffset = chartPainter.getPlot().getBounds().getY() + chartPainter.getPlot().getBounds().getHeight() - legendBoxHeight - LEGEND_MARGIN;
      break;
    case InsideN:
      xOffset = chartPainter.getPlot().getBounds().getX() + (chartPainter.getPlot().getBounds().getWidth() - legendBoxWidth) / 2 + LEGEND_MARGIN;
      yOffset = chartPainter.getPlot().getBounds().getY() + LEGEND_MARGIN;
      break;


    default:
      break;
    }


    g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    Shape rect = new Rectangle2D.Double(xOffset + 1, yOffset + 1, legendBoxWidth - 2, legendBoxHeight - 2);
    g.setColor(styleManager.getLegendBackgroundColor());
    g.fill(rect);
    g.setColor(styleManager.getLegendBorderColor());
    g.draw(rect);


    // Draw legend content inside legend box
    double startx = xOffset + styleManager.getLegendPadding();
    double starty = yOffset + styleManager.getLegendPadding();


    for (Series series : chartPainter.getAxisPair().getSeriesMap().values()) {


      Map<String, Rectangle2D> seriesTextBounds = getSeriesTextBounds(series, g);


      float blockHeight = 0;
      double legendTextContentMaxWidth = 0;
      for (Map.Entry<String, Rectangle2D> entry : seriesTextBounds.entrySet()) {
        blockHeight += entry.getValue().getHeight() + MULTI_LINE_SPACE;
        legendTextContentMaxWidth = Math.max(legendTextContentMaxWidth, entry.getValue().getWidth());
      }
      blockHeight -= MULTI_LINE_SPACE;


      blockHeight = Math.max(blockHeight, styleManager.getChartType() == ChartType.Bar ? BOX_SIZE : getChartPainter().getStyleManager().getMarkerSize());


      if (styleManager.getChartType() != ChartType.Bar) {


        // paint line
        if (styleManager.getChartType() != ChartType.Scatter && series.getStroke() != null) {
          g.setColor(series.getStrokeColor());
          g.setStroke(series.getStroke());
          Shape line = new Line2D.Double(startx, starty + blockHeight / 2.0, startx + styleManager.getLegendSeriesLineLength(), starty + blockHeight / 2.0);
          g.draw(line);
        }


        // // debug box
        // Rectangle2D boundsTemp = new Rectangle2D.Double(startx, starty, styleManager.getLegendSeriesLineLength(), blockHeight);
        // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
        // g.setColor(Color.red);
        // g.draw(boundsTemp);


        // paint marker
        if (series.getMarker() != null) {
          g.setColor(series.getMarkerColor());
          series.getMarker().paint(g, startx + styleManager.getLegendSeriesLineLength() / 2.0, starty + blockHeight / 2.0, getChartPainter().getStyleManager().getMarkerSize());


        }
      }
      else {
        // paint little box
        if (series.getStroke() != null) {
          g.setColor(series.getStrokeColor());
          Shape rectSmall = new Rectangle2D.Double(startx, starty, BOX_SIZE, BOX_SIZE);
          g.fill(rectSmall);
        }
        // // debug box
        // Rectangle2D boundsTemp = new Rectangle2D.Double(startx, starty, BOX_SIZE, BOX_SIZE);
        // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
        // g.setColor(Color.red);
        // g.draw(boundsTemp);
      }


      // paint series text
      g.setColor(chartPainter.getStyleManager().getChartFontColor());


      double multiLineOffset = 0.0;


      if (styleManager.getChartType() != ChartType.Bar) {


        double x = startx + styleManager.getLegendSeriesLineLength() + styleManager.getLegendPadding();
        for (Map.Entry<String, Rectangle2D> entry : seriesTextBounds.entrySet()) {


          double height = entry.getValue().getHeight();
          double centerOffsetY = (Math.max(getChartPainter().getStyleManager().getMarkerSize(), height) - height) / 2.0;


          FontRenderContext frc = g.getFontRenderContext();
          TextLayout tl = new TextLayout(entry.getKey(), styleManager.getLegendFont(), frc);
          Shape shape = tl.getOutline(null);
          AffineTransform orig = g.getTransform();
          AffineTransform at = new AffineTransform();
          at.translate(x, starty + height + centerOffsetY + multiLineOffset);
          g.transform(at);
          g.fill(shape);
          g.setTransform(orig);


          // // debug box
          // Rectangle2D boundsTemp = new Rectangle2D.Double(x, starty + centerOffsetY + multiLineOffset, entry.getValue().getWidth(), height);
          // g.setColor(Color.blue);
          // g.draw(boundsTemp);


          multiLineOffset += height + MULTI_LINE_SPACE;
        }


        starty += blockHeight + styleManager.getLegendPadding();
      }
      else {


        final double x = startx + BOX_SIZE + styleManager.getLegendPadding();
        for (Map.Entry<String, Rectangle2D> entry : seriesTextBounds.entrySet()) {


          double height = entry.getValue().getHeight();
          double centerOffsetY = (Math.max(BOX_SIZE, height) - height) / 2.0;


          FontRenderContext frc = g.getFontRenderContext();
          TextLayout tl = new TextLayout(entry.getKey(), styleManager.getLegendFont(), frc);
          Shape shape = tl.getOutline(null);
          AffineTransform orig = g.getTransform();
          AffineTransform at = new AffineTransform();
          at.translate(x, starty + height + centerOffsetY + multiLineOffset);
          g.transform(at);
          g.fill(shape);
          g.setTransform(orig);


          // // debug box
          // Rectangle2D boundsTemp = new Rectangle2D.Double(x, starty + centerOffsetY, entry.getValue().getWidth(), height);
          // g.setColor(Color.blue);
          // g.draw(boundsTemp);
          multiLineOffset += height + MULTI_LINE_SPACE;


        }
        starty += blockHeight + styleManager.getLegendPadding();
      }


    }


    // bounds

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    Rectangle2D bounds = plot.getBounds();
    // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    // g.setColor(Color.red);
    // g.draw(bounds);


    StyleManager styleManager = plot.getChartPainter().getStyleManager();


    // this is for preventing the series to be drawn outside the plot area if min and max is overridden to fall inside the data range


    // Rectangle rectangle = g.getClipBounds();
    // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    // g.setColor(Color.green);
    // g.draw(rectangle);


    Rectangle rectangle = new Rectangle(0, 0, getChartPainter().getWidth(), getChartPainter().getHeight());
    // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    // g.setColor(Color.green);
    // g.draw(rectangle);
    g.setClip(bounds.createIntersection(rectangle));


    // g.setClip(bounds.createIntersection(g.getClipBounds()));


    // X-Axis
    double xTickSpace = styleManager.getAxisTickSpacePercentage() * bounds.getWidth();
    double xLeftMargin = Utils.getTickStartOffset((int) bounds.getWidth(), xTickSpace);


    // Y-Axis
    double yTickSpace = styleManager.getAxisTickSpacePercentage() * bounds.getHeight();
    double yTopMargin = Utils.getTickStartOffset((int) bounds.getHeight(), yTickSpace);


    for (Series series : getChartPainter().getAxisPair().getSeriesMap().values()) {


      // data points

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Related Classes of com.xeiam.xchart.StyleManager

com.xeiam.xchart.internal.chartpart.ChartPainter

com.xeiam.xchart.internal.chartpart.Legend

com.xeiam.xchart.internal.chartpart.PlotContentBarChart

com.xeiam.xchart.internal.chartpart.PlotContentLineChart

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