/**
   * Draws an item label.
   *
   * @param g2 the graphics device.
   * @param orientation the orientation.
   * @param dataset the dataset.
   * @param series the series index (zero-based).
   * @param item the item index (zero-based).
   * @param x the x coordinate (in Java2D space).
   * @param y the y coordinate (in Java2D space).
   * @param negative indicates a negative value (which affects the item label position).
   */
  private void drawAdditionalItemLabel(
      Graphics2D g2,
      PlotOrientation orientation,
      XYDataset dataset,
      int series,
      int item,
      double x,
      double y) {

    if (this.additionalItemLabelGenerator == null) {
      return;
    }

    Font labelFont = getItemLabelFont(series, item);
    Paint paint = getItemLabelPaint(series, item);
    g2.setFont(labelFont);
    g2.setPaint(paint);
    String label = this.additionalItemLabelGenerator.generateLabel(dataset, series, item);

    ItemLabelPosition position = getNegativeItemLabelPosition(series, item);
    Point2D anchorPoint =
        calculateLabelAnchorPoint(position.getItemLabelAnchor(), x, y, orientation);
    TextUtilities.drawRotatedString(
        label,
        g2,
        (float) anchorPoint.getX(),
        (float) anchorPoint.getY(),
        position.getTextAnchor(),
        position.getAngle(),
        position.getRotationAnchor());
  }
  /**
   * Draws an item label.
   *
   * @param g2 the graphics device.
   * @param orientation the orientation.
   * @param dataset the dataset.
   * @param row the row.
   * @param column the column.
   * @param x the x coordinate (in Java2D space).
   * @param y the y coordinate (in Java2D space).
   * @param negative indicates a negative value (which affects the item label position).
   */
  protected void drawItemLabel(
      Graphics2D g2,
      PlotOrientation orientation,
      CategoryDataset dataset,
      int row,
      int column,
      double x,
      double y,
      boolean negative) {

    CategoryItemLabelGenerator generator = getItemLabelGenerator(row, column);
    if (generator != null) {
      Font labelFont = getItemLabelFont(row, column);
      Paint paint = getItemLabelPaint(row, column);
      g2.setFont(labelFont);
      g2.setPaint(paint);
      String label = generator.generateLabel(dataset, row, column);
      ItemLabelPosition position = null;
      if (!negative) {
        position = getPositiveItemLabelPosition(row, column);
      } else {
        position = getNegativeItemLabelPosition(row, column);
      }
      Point2D anchorPoint =
          calculateLabelAnchorPoint(position.getItemLabelAnchor(), x, y, orientation);
      TextUtilities.drawRotatedString(
          label,
          g2,
          (float) anchorPoint.getX(),
          (float) anchorPoint.getY(),
          position.getTextAnchor(),
          position.getAngle(),
          position.getRotationAnchor());
    }
  }
Esempio n. 3
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  /**
   * Draws the axis label.
   *
   * @param label the label text.
   * @param g2 the graphics device.
   * @param plotArea the plot area.
   * @param dataArea the area inside the axes.
   * @param edge the location of the axis.
   * @param state the axis state (<code>null</code> not permitted).
   * @return Information about the axis.
   */
  protected AxisState drawLabel(
      String label,
      Graphics2D g2,
      Rectangle2D plotArea,
      Rectangle2D dataArea,
      RectangleEdge edge,
      AxisState state) {

    // it is unlikely that 'state' will be null, but check anyway...
    ParamChecks.nullNotPermitted(state, "state");

    if ((label == null) || (label.equals(""))) {
      return state;
    }

    Font font = getLabelFont();
    RectangleInsets insets = getLabelInsets();
    g2.setFont(font);
    g2.setPaint(getLabelPaint());
    FontMetrics fm = g2.getFontMetrics();
    Rectangle2D labelBounds = TextUtilities.getTextBounds(label, g2, fm);

    if (edge == RectangleEdge.TOP) {
      AffineTransform t =
          AffineTransform.getRotateInstance(
              getLabelAngle(), labelBounds.getCenterX(), labelBounds.getCenterY());
      Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
      labelBounds = rotatedLabelBounds.getBounds2D();
      double labelx = dataArea.getCenterX();
      double labely = state.getCursor() - insets.getBottom() - labelBounds.getHeight() / 2.0;
      TextUtilities.drawRotatedString(
          label,
          g2,
          (float) labelx,
          (float) labely,
          TextAnchor.CENTER,
          getLabelAngle(),
          TextAnchor.CENTER);
      state.cursorUp(insets.getTop() + labelBounds.getHeight() + insets.getBottom());
    } else if (edge == RectangleEdge.BOTTOM) {
      AffineTransform t =
          AffineTransform.getRotateInstance(
              getLabelAngle(), labelBounds.getCenterX(), labelBounds.getCenterY());
      Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
      labelBounds = rotatedLabelBounds.getBounds2D();
      double labelx = dataArea.getCenterX();
      double labely = state.getCursor() + insets.getTop() + labelBounds.getHeight() / 2.0;
      TextUtilities.drawRotatedString(
          label,
          g2,
          (float) labelx,
          (float) labely,
          TextAnchor.CENTER,
          getLabelAngle(),
          TextAnchor.CENTER);
      state.cursorDown(insets.getTop() + labelBounds.getHeight() + insets.getBottom());
    } else if (edge == RectangleEdge.LEFT) {
      AffineTransform t =
          AffineTransform.getRotateInstance(
              getLabelAngle() - Math.PI / 2.0, labelBounds.getCenterX(), labelBounds.getCenterY());
      Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
      labelBounds = rotatedLabelBounds.getBounds2D();
      double labelx = state.getCursor() - insets.getRight() - labelBounds.getWidth() / 2.0;
      double labely = dataArea.getCenterY();
      TextUtilities.drawRotatedString(
          label,
          g2,
          (float) labelx,
          (float) labely,
          TextAnchor.CENTER,
          getLabelAngle() - Math.PI / 2.0,
          TextAnchor.CENTER);
      state.cursorLeft(insets.getLeft() + labelBounds.getWidth() + insets.getRight());
    } else if (edge == RectangleEdge.RIGHT) {

      AffineTransform t =
          AffineTransform.getRotateInstance(
              getLabelAngle() + Math.PI / 2.0, labelBounds.getCenterX(), labelBounds.getCenterY());
      Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
      labelBounds = rotatedLabelBounds.getBounds2D();
      double labelx = state.getCursor() + insets.getLeft() + labelBounds.getWidth() / 2.0;
      double labely = dataArea.getY() + dataArea.getHeight() / 2.0;
      TextUtilities.drawRotatedString(
          label,
          g2,
          (float) labelx,
          (float) labely,
          TextAnchor.CENTER,
          getLabelAngle() + Math.PI / 2.0,
          TextAnchor.CENTER);
      state.cursorRight(insets.getLeft() + labelBounds.getWidth() + insets.getRight());
    }

    return state;
  }
  /**
   * Draws the annotation.
   *
   * @param g2 the graphics device.
   * @param plot the plot.
   * @param dataArea the data area.
   * @param domainAxis the domain axis.
   * @param rangeAxis the range axis.
   * @param rendererIndex the renderer index.
   * @param info the plot rendering info.
   */
  public void draw(
      Graphics2D g2,
      XYPlot plot,
      Rectangle2D dataArea,
      ValueAxis domainAxis,
      ValueAxis rangeAxis,
      int rendererIndex,
      PlotRenderingInfo info) {

    PlotOrientation orientation = plot.getOrientation();
    RectangleEdge domainEdge =
        Plot.resolveDomainAxisLocation(plot.getDomainAxisLocation(), orientation);
    RectangleEdge rangeEdge =
        Plot.resolveRangeAxisLocation(plot.getRangeAxisLocation(), orientation);
    double j2DX = domainAxis.valueToJava2D(getX(), dataArea, domainEdge);
    double j2DY = rangeAxis.valueToJava2D(getY(), dataArea, rangeEdge);
    if (orientation == PlotOrientation.HORIZONTAL) {
      double temp = j2DX;
      j2DX = j2DY;
      j2DY = temp;
    }
    double startX = j2DX + Math.cos(this.angle) * this.baseRadius;
    double startY = j2DY + Math.sin(this.angle) * this.baseRadius;

    double endX = j2DX + Math.cos(this.angle) * this.tipRadius;
    double endY = j2DY + Math.sin(this.angle) * this.tipRadius;

    double arrowBaseX = endX + Math.cos(this.angle) * this.arrowLength;
    double arrowBaseY = endY + Math.sin(this.angle) * this.arrowLength;

    double arrowLeftX = arrowBaseX + Math.cos(this.angle + Math.PI / 2.0) * this.arrowWidth;
    double arrowLeftY = arrowBaseY + Math.sin(this.angle + Math.PI / 2.0) * this.arrowWidth;

    double arrowRightX = arrowBaseX - Math.cos(this.angle + Math.PI / 2.0) * this.arrowWidth;
    double arrowRightY = arrowBaseY - Math.sin(this.angle + Math.PI / 2.0) * this.arrowWidth;

    GeneralPath arrow = new GeneralPath();
    arrow.moveTo((float) endX, (float) endY);
    arrow.lineTo((float) arrowLeftX, (float) arrowLeftY);
    arrow.lineTo((float) arrowRightX, (float) arrowRightY);
    arrow.closePath();

    g2.setStroke(this.arrowStroke);
    g2.setPaint(this.arrowPaint);
    Line2D line = new Line2D.Double(startX, startY, arrowBaseX, arrowBaseY);
    g2.draw(line);
    g2.fill(arrow);

    // draw the label
    double labelX = j2DX + Math.cos(this.angle) * (this.baseRadius + this.labelOffset);
    double labelY = j2DY + Math.sin(this.angle) * (this.baseRadius + this.labelOffset);
    g2.setFont(getFont());
    Shape hotspot =
        TextUtilities.calculateRotatedStringBounds(
            getText(),
            g2,
            (float) labelX,
            (float) labelY,
            getTextAnchor(),
            getRotationAngle(),
            getRotationAnchor());
    if (getBackgroundPaint() != null) {
      g2.setPaint(getBackgroundPaint());
      g2.fill(hotspot);
    }
    g2.setPaint(getPaint());
    TextUtilities.drawRotatedString(
        getText(),
        g2,
        (float) labelX,
        (float) labelY,
        getTextAnchor(),
        getRotationAngle(),
        getRotationAnchor());
    if (isOutlineVisible()) {
      g2.setStroke(getOutlineStroke());
      g2.setPaint(getOutlinePaint());
      g2.draw(hotspot);
    }

    String toolTip = getToolTipText();
    String url = getURL();
    if (toolTip != null || url != null) {
      addEntity(info, hotspot, rendererIndex, toolTip, url);
    }
  }
Esempio n. 5
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  /**
   * Draws an item label. This method is provided as an alternative to {@link
   * #drawItemLabel(Graphics2D, PlotOrientation, XYDataset, int, int, double, double, boolean)} so
   * that the bar can be used to calculate the label anchor point.
   *
   * @param g2 the graphics device.
   * @param dataset the dataset.
   * @param series the series index.
   * @param item the item index.
   * @param plot the plot.
   * @param generator the label generator ({@code null} permitted, in which case the method does
   *     nothing, just returns).
   * @param bar the bar.
   * @param negative a flag indicating a negative value.
   */
  protected void drawItemLabel(
      Graphics2D g2,
      XYDataset dataset,
      int series,
      int item,
      XYPlot plot,
      XYItemLabelGenerator generator,
      Rectangle2D bar,
      boolean negative) {

    if (generator == null) {
      return; // nothing to do
    }
    String label = generator.generateLabel(dataset, series, item);
    if (label == null) {
      return; // nothing to do
    }

    Font labelFont = getItemLabelFont(series, item);
    g2.setFont(labelFont);
    Paint paint = getItemLabelPaint(series, item);
    g2.setPaint(paint);

    // find out where to place the label...
    ItemLabelPosition position;
    if (!negative) {
      position = getPositiveItemLabelPosition(series, item);
    } else {
      position = getNegativeItemLabelPosition(series, item);
    }

    // work out the label anchor point...
    Point2D anchorPoint =
        calculateLabelAnchorPoint(position.getItemLabelAnchor(), bar, plot.getOrientation());

    if (isInternalAnchor(position.getItemLabelAnchor())) {
      Shape bounds =
          TextUtilities.calculateRotatedStringBounds(
              label,
              g2,
              (float) anchorPoint.getX(),
              (float) anchorPoint.getY(),
              position.getTextAnchor(),
              position.getAngle(),
              position.getRotationAnchor());

      if (bounds != null) {
        if (!bar.contains(bounds.getBounds2D())) {
          if (!negative) {
            position = getPositiveItemLabelPositionFallback();
          } else {
            position = getNegativeItemLabelPositionFallback();
          }
          if (position != null) {
            anchorPoint =
                calculateLabelAnchorPoint(
                    position.getItemLabelAnchor(), bar, plot.getOrientation());
          }
        }
      }
    }

    if (position != null) {
      TextUtilities.drawRotatedString(
          label,
          g2,
          (float) anchorPoint.getX(),
          (float) anchorPoint.getY(),
          position.getTextAnchor(),
          position.getAngle(),
          position.getRotationAnchor());
    }
  }
Esempio n. 6
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  /**
   * Draws the category labels and returns the updated axis state.
   *
   * @param g2 the graphics device (<code>null</code> not permitted).
   * @param plotArea the plot area (<code>null</code> not permitted).
   * @param dataArea the area inside the axes (<code>null</code> not permitted).
   * @param edge the axis location (<code>null</code> not permitted).
   * @param state the axis state (<code>null</code> not permitted).
   * @param plotState collects information about the plot (<code>null</code> permitted).
   * @return The updated axis state (never <code>null</code>).
   */
  protected AxisState drawSubCategoryLabels(
      Graphics2D g2,
      Rectangle2D plotArea,
      Rectangle2D dataArea,
      RectangleEdge edge,
      AxisState state,
      PlotRenderingInfo plotState) {

    if (state == null) {
      throw new IllegalArgumentException("Null 'state' argument.");
    }

    g2.setFont(this.subLabelFont);
    g2.setPaint(this.subLabelPaint);
    CategoryPlot plot = (CategoryPlot) getPlot();
    CategoryDataset dataset = plot.getDataset();
    int categoryCount = dataset.getColumnCount();

    double maxdim = getMaxDim(g2, edge);
    for (int categoryIndex = 0; categoryIndex < categoryCount; categoryIndex++) {

      double x0 = 0.0;
      double x1 = 0.0;
      double y0 = 0.0;
      double y1 = 0.0;
      if (edge == RectangleEdge.TOP) {
        x0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
        x1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
        y1 = state.getCursor();
        y0 = y1 - maxdim;
      } else if (edge == RectangleEdge.BOTTOM) {
        x0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
        x1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
        y0 = state.getCursor();
        y1 = y0 + maxdim;
      } else if (edge == RectangleEdge.LEFT) {
        y0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
        y1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
        x1 = state.getCursor();
        x0 = x1 - maxdim;
      } else if (edge == RectangleEdge.RIGHT) {
        y0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
        y1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
        x0 = state.getCursor();
        x1 = x0 + maxdim;
      }
      Rectangle2D area = new Rectangle2D.Double(x0, y0, (x1 - x0), (y1 - y0));
      int subCategoryCount = this.subCategories.size();
      float width = (float) ((x1 - x0) / subCategoryCount);
      float height = (float) ((y1 - y0) / subCategoryCount);
      float xx = 0.0f;
      float yy = 0.0f;
      for (int i = 0; i < subCategoryCount; i++) {
        if (RectangleEdge.isTopOrBottom(edge)) {
          xx = (float) (x0 + (i + 0.5) * width);
          yy = (float) area.getCenterY();
        } else {
          xx = (float) area.getCenterX();
          yy = (float) (y0 + (i + 0.5) * height);
        }
        String label = this.subCategories.get(i).toString();
        TextUtilities.drawRotatedString(
            label, g2, xx, yy, TextAnchor.CENTER, 0.0, TextAnchor.CENTER);
      }
    }

    if (edge.equals(RectangleEdge.TOP)) {
      double h = maxdim;
      state.cursorUp(h);
    } else if (edge.equals(RectangleEdge.BOTTOM)) {
      double h = maxdim;
      state.cursorDown(h);
    } else if (edge == RectangleEdge.LEFT) {
      double w = maxdim;
      state.cursorLeft(w);
    } else if (edge == RectangleEdge.RIGHT) {
      double w = maxdim;
      state.cursorRight(w);
    }
    return state;
  }