Ejemplo n.º 1
0
 /**
  * Calculates the current legend size.
  *
  * @param renderer the renderer
  * @param defaultHeight the default height
  * @param extraHeight the added extra height
  * @return the legend size
  */
 protected int getLegendSize(DefaultRenderer renderer, int defaultHeight, float extraHeight) {
   int legendSize = renderer.getLegendHeight();
   if (renderer.isShowLegend() && legendSize == 0) {
     legendSize = defaultHeight;
   }
   if (!renderer.isShowLegend() && renderer.isShowLabels()) {
     legendSize = (int) (renderer.getLabelsTextSize() * 4 / 3 + extraHeight);
   }
   return legendSize;
 }
Ejemplo n.º 2
0
  /**
   * Draws the chart legend.
   *
   * @param canvas the canvas to paint to
   * @param renderer the series renderer
   * @param titles the titles to go to the legend
   * @param left the left X value of the area to draw to
   * @param right the right X value of the area to draw to
   * @param y the y value of the area to draw to
   * @param width the width of the area to draw to
   * @param height the height of the area to draw to
   * @param legendSize the legend size
   * @param paint the paint to be used for drawing
   * @param calculate if only calculating the legend size
   * @return the legend height
   */
  protected int drawLegend(
      Canvas canvas,
      DefaultRenderer renderer,
      String[] titles,
      int left,
      int right,
      int y,
      int width,
      int height,
      int legendSize,
      Paint paint,
      boolean calculate) {
    float size = 32;
    if (renderer.isShowLegend()) {
      float currentX = left;
      float currentY = y + height - legendSize + size;
      paint.setTextAlign(Align.LEFT);
      paint.setTextSize(renderer.getLegendTextSize());
      int sLength = Math.min(titles.length, renderer.getSeriesRendererCount());
      for (int i = 0; i < sLength; i++) {
        final float lineSize = getLegendShapeWidth(i);
        String text = titles[i];
        if (titles.length == renderer.getSeriesRendererCount()) {
          paint.setColor(renderer.getSeriesRendererAt(i).getColor());
        } else {
          paint.setColor(Color.LTGRAY);
        }
        float[] widths = new float[text.length()];
        paint.getTextWidths(text, widths);
        float sum = 0;
        for (float value : widths) {
          sum += value;
        }
        float extraSize = lineSize + 10 + sum;
        float currentWidth = currentX + extraSize;

        if (i > 0 && getExceed(currentWidth, renderer, right, width)) {
          currentX = left;
          currentY += renderer.getLegendTextSize();
          size += renderer.getLegendTextSize();
          currentWidth = currentX + extraSize;
        }
        if (getExceed(currentWidth, renderer, right, width)) {
          float maxWidth = right - currentX - lineSize - 10;
          if (isVertical(renderer)) {
            maxWidth = width - currentX - lineSize - 10;
          }
          int nr = paint.breakText(text, true, maxWidth, widths);
          text = text.substring(0, nr) + "...";
        }
        if (!calculate) {
          drawLegendShape(canvas, renderer.getSeriesRendererAt(i), currentX, currentY, i, paint);
          drawString(canvas, text, currentX + lineSize + 5, currentY + 5, paint);
        }
        currentX += extraSize;
      }
    }
    return Math.round(size + renderer.getLegendTextSize());
  }