Example usage for org.jfree.chart.renderer.category CategoryItemRenderer initialise

Introduction

In this page you can find the example usage for org.jfree.chart.renderer.category CategoryItemRenderer initialise.

Prototype

public CategoryItemRendererState initialise(Graphics2D g2, Rectangle2D dataArea, CategoryPlot plot,
        int rendererIndex, PlotRenderingInfo info);

Source Link

Document

Initialises the renderer.

Usage

From source file:org.openfaces.component.chart.impl.plots.GridCategoryPlotAdapter.java

@Override
public boolean render(Graphics2D g2, Rectangle2D dataArea, int index, PlotRenderingInfo info,
        CategoryCrosshairState crossHairState) {
    final boolean customRenderingModeEnabled = getRenderer() != null
            && getRenderer() instanceof AreaFillRenderer;

    if (!customRenderingModeEnabled) {
        return super.render(g2, dataArea, index, info, crossHairState);
    }//from  w ww  . j a  v a  2 s.c o m

    CategoryItemRenderer categoryItemRenderer = getRenderer(index);
    CategoryDataset categoryDataset = getDataset(index);

    boolean isDataSetNotEmpty = !DatasetUtilities.isEmptyOrNull(categoryDataset);
    boolean isAscendingRowOrdering = getRowRenderingOrder() == SortOrder.ASCENDING;

    if (!isDataSetNotEmpty || categoryItemRenderer == null) {
        return false;
    }
    CategoryItemRendererState rendererState = categoryItemRenderer.initialise(g2, dataArea, this, index, info);
    rendererState.setCrosshairState(crossHairState);
    int totalRows = categoryDataset.getRowCount();

    if (isAscendingRowOrdering) {
        for (int currentRowIndex = 0; currentRowIndex < totalRows; currentRowIndex++) {
            renderColumns(g2, rendererState, dataArea, categoryItemRenderer, categoryDataset, index,
                    currentRowIndex);
        }
    } else {
        for (int currentRowIndex = totalRows - 1; currentRowIndex >= 0; currentRowIndex--) {
            renderColumns(g2, rendererState, dataArea, categoryItemRenderer, categoryDataset, index,
                    currentRowIndex);
        }
    }

    return true;
}

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