Example usage for org.jfree.chart.block EntityBlockParams getGenerateEntities

Introduction

In this page you can find the example usage for org.jfree.chart.block EntityBlockParams getGenerateEntities.

Prototype

public boolean getGenerateEntities();

Source Link

Document

Returns a flag that controls whether or not the block should return entities for the items it draws.

Usage

From source file:com.rapidminer.gui.new_plotter.engine.jfreechart.legend.ColoredBlockContainer.java

/**
 * Disclaimer: this is a "works for me" implementation, and probably only works as long as the
 * items are arranged horizontally in exactly one line, since it brutally enforces the items to
 * be aligned vertically centered./*from   w  w w .j  a v  a 2s  .  c  o  m*/
 */
@Override
public Object draw(Graphics2D g2, Rectangle2D area, Object params) {
    area = drawFill(g2, area);

    // check if we need to collect chart entities from the container
    EntityBlockParams ebp = null;
    StandardEntityCollection sec = null;
    if (params instanceof EntityBlockParams) {
        ebp = (EntityBlockParams) params;
        if (ebp.getGenerateEntities()) {
            sec = new StandardEntityCollection();
        }
    }
    Rectangle2D contentArea = (Rectangle2D) area.clone();
    contentArea = trimMargin(contentArea);
    drawBorder(g2, contentArea);
    contentArea = trimBorder(contentArea);
    contentArea = trimPadding(contentArea);
    Iterator iterator = getBlocks().iterator();
    while (iterator.hasNext()) {
        Block block = (Block) iterator.next();
        Rectangle2D bounds = block.getBounds();

        // enforce vertically centered alignment
        double y = area.getY() + (area.getHeight() - bounds.getHeight()) / 2.0;

        Rectangle2D drawArea = new Rectangle2D.Double(bounds.getX() + area.getX(), y, bounds.getWidth(),
                bounds.getHeight());
        Object r = block.draw(g2, drawArea, params);
        if (sec != null) {
            if (r instanceof EntityBlockResult) {
                EntityBlockResult ebr = (EntityBlockResult) r;
                EntityCollection ec = ebr.getEntityCollection();
                sec.addAll(ec);
            }
        }
    }
    BlockResult result = null;
    if (sec != null) {
        result = new BlockResult();
        result.setEntityCollection(sec);
    }
    return result;
}

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