Example usage for org.jfree.chart.renderer.xy XYBarRenderer getItemPaint

Introduction

In this page you can find the example usage for org.jfree.chart.renderer.xy XYBarRenderer getItemPaint.

Prototype

public Paint getItemPaint(int row, int column) 

Source Link

Document

Returns the paint used to color data items as they are drawn.

Usage

From source file:com.rapidminer.gui.plotter.charts.RapidXYBarPainter.java

@Override
public void paintBar(Graphics2D g2, XYBarRenderer renderer, int row, int column, RectangularShape bar,
        RectangleEdge base) {/*from ww  w  . java  2s .c om*/
    Paint itemPaint = renderer.getItemPaint(row, column);

    Color c0 = null;

    if (itemPaint instanceof Color) {
        c0 = (Color) itemPaint;
    } else {
        c0 = SwingTools.DARK_BLUE;
    }

    // as a special case, if the bar color has alpha == 0, we draw
    // nothing.
    if (c0.getAlpha() == 0) {
        return;
    }

    g2.setPaint(c0);
    g2.fill(new Rectangle2D.Double(bar.getMinX(), bar.getMinY(), bar.getWidth(), bar.getHeight()));

    // draw the outline...
    if (renderer.isDrawBarOutline()) {
        Stroke stroke = renderer.getItemOutlineStroke(row, column);
        Paint paint = renderer.getItemOutlinePaint(row, column);
        if (stroke != null && paint != null) {
            g2.setStroke(stroke);
            g2.setPaint(paint);
            g2.draw(bar);
        }
    }
}

---

From source file:org.openfaces.component.chart.impl.renderers.GradientXYBarPainterAdapter.java

@Override
public void paintBarShadow(Graphics2D g2, XYBarRenderer renderer, int row, int column, RectangularShape bar,
        RectangleEdge base, boolean pegShadow) {
    // handle a special case - if the bar colour has alpha == 0, it is
    // invisible so we shouldn't draw any shadow
    Paint itemPaint = renderer.getItemPaint(row, column);
    if (itemPaint instanceof Color) {
        Color c = (Color) itemPaint;
        if (c.getAlpha() == 0) {
            return;
        }/*from www.  j  a va2 s .  c om*/
    }

    RectangularShape shadow = createShadow(bar, renderer.getShadowXOffset(), renderer.getShadowYOffset(), base,
            pegShadow);
    if (renderer instanceof XYBarRendererAdapter) {
        g2.setPaint(((XYBarRendererAdapter) renderer).getShadowPaint());
    }
    g2.fill(shadow);
}

---

From source file:org.openfaces.component.chart.impl.renderers.StandardXYBarPainterAdapter.java

/**
 * Paints a single bar instance.//from   w w w .ja  va2s . c  o  m
 *
 * @param g2        the graphics target.
 * @param renderer  the renderer.
 * @param row       the row index.
 * @param column    the column index.
 * @param bar       the bar
 * @param base      indicates which side of the rectangle is the base of the
 *                  bar.
 * @param pegShadow peg the shadow to the base of the bar?
 */
public void paintBarShadow(Graphics2D g2, XYBarRenderer renderer, int row, int column, RectangularShape bar,
        RectangleEdge base, boolean pegShadow) {

    // handle a special case - if the bar colour has alpha == 0, it is
    // invisible so we shouldn't draw any shadow
    Paint itemPaint = renderer.getItemPaint(row, column);
    if (itemPaint instanceof Color) {
        Color c = (Color) itemPaint;
        if (c.getAlpha() == 0) {
            return;
        }
    }

    RectangularShape shadow = createShadow(bar, renderer.getShadowXOffset(), renderer.getShadowYOffset(), base,
            pegShadow);
    if (renderer instanceof XYBarRendererAdapter) {
        g2.setPaint(((XYBarRendererAdapter) renderer).getShadowPaint());
    }
    g2.fill(shadow);

}

---

From source file:it.cnr.istc.utils.gui.ReverseGradientXYBarPainter.java

/**
 * Paints a single bar instance./*from   ww  w .  ja v  a 2s  . c  o m*/
 *
 * @param g2 the graphics target.
 * @param renderer the renderer.
 * @param row the row index.
 * @param column the column index.
 * @param bar the bar
 * @param base indicates which side of the rectangle is the base of the bar.
 */
@Override
public void paintBar(Graphics2D g2, XYBarRenderer renderer, int row, int column, RectangularShape bar,
        RectangleEdge base) {

    Paint itemPaint = renderer.getItemPaint(row, column);

    Color c0, c1;
    if (itemPaint instanceof Color) {
        c0 = (Color) itemPaint;
        c1 = c0.brighter();
    } else if (itemPaint instanceof GradientPaint) {
        GradientPaint gp = (GradientPaint) itemPaint;
        c0 = gp.getColor1();
        c1 = gp.getColor2();
    } else {
        c0 = Color.blue;
        c1 = Color.blue.brighter();
    }

    // as a special case, if the bar colour has alpha == 0, we draw
    // nothing.
    if (c0.getAlpha() == 0) {
        return;
    }

    if (base == RectangleEdge.LEFT || base == RectangleEdge.RIGHT) {
        Rectangle2D[] regions = splitVerticalBar(bar, this.g1, this.g2, this.g3);
        GradientPaint gp = new GradientPaint((float) regions[0].getMinX(), 0.0f, c0,
                (float) regions[0].getMaxX(), 0.0f, Color.white);
        g2.setPaint(gp);
        g2.fill(regions[0]);

        gp = new GradientPaint((float) regions[1].getMinX(), 0.0f, Color.white, (float) regions[1].getMaxX(),
                0.0f, c0);
        g2.setPaint(gp);
        g2.fill(regions[1]);

        gp = new GradientPaint((float) regions[2].getMinX(), 0.0f, c0, (float) regions[2].getMaxX(), 0.0f, c1);
        g2.setPaint(gp);
        g2.fill(regions[2]);

        gp = new GradientPaint((float) regions[3].getMinX(), 0.0f, c1, (float) regions[3].getMaxX(), 0.0f, c0);
        g2.setPaint(gp);
        g2.fill(regions[3]);
    } else if (base == RectangleEdge.TOP || base == RectangleEdge.BOTTOM) {
        Rectangle2D[] regions = splitHorizontalBar(bar, this.g1, this.g2, this.g3);
        GradientPaint gp = new GradientPaint(0.0f, (float) regions[0].getMinY(), c0, 0.0f,
                (float) regions[0].getMaxX(), Color.white);
        g2.setPaint(gp);
        g2.fill(regions[0]);

        gp = new GradientPaint(0.0f, (float) regions[1].getMinY(), Color.white, 0.0f,
                (float) regions[1].getMaxY(), c0);
        g2.setPaint(gp);
        g2.fill(regions[1]);

        gp = new GradientPaint(0.0f, (float) regions[2].getMinY(), c0, 0.0f, (float) regions[2].getMaxY(), c1);
        g2.setPaint(gp);
        g2.fill(regions[2]);

        gp = new GradientPaint(0.0f, (float) regions[3].getMinY(), c1, 0.0f, (float) regions[3].getMaxY(), c0);
        g2.setPaint(gp);
        g2.fill(regions[3]);
    }

    // draw the outline...
    if (renderer.isDrawBarOutline()) {
        Stroke stroke = renderer.getItemOutlineStroke(row, column);
        Paint paint = renderer.getItemOutlinePaint(row, column);
        if (stroke != null && paint != null) {
            g2.setStroke(stroke);
            g2.setPaint(paint);
            g2.draw(bar);
        }
    }

}

---

From source file:it.cnr.istc.utils.gui.ReverseGradientXYBarPainter.java

/**
 * Paints a single bar instance.//from ww w.j  a v a 2 s .c  o m
 *
 * @param g2 the graphics target.
 * @param renderer the renderer.
 * @param row the row index.
 * @param column the column index.
 * @param bar the bar
 * @param base indicates which side of the rectangle is the base of the bar.
 * @param pegShadow peg the shadow to the base of the bar?
 */
@Override
public void paintBarShadow(Graphics2D g2, XYBarRenderer renderer, int row, int column, RectangularShape bar,
        RectangleEdge base, boolean pegShadow) {

    // handle a special case - if the bar colour has alpha == 0, it is
    // invisible so we shouldn't draw any shadow
    Paint itemPaint = renderer.getItemPaint(row, column);
    if (itemPaint instanceof Color) {
        Color c = (Color) itemPaint;
        if (c.getAlpha() == 0) {
            return;
        }
    }

    RectangularShape shadow = createShadow(bar, renderer.getShadowXOffset(), renderer.getShadowYOffset(), base,
            pegShadow);
    g2.setPaint(Color.gray);
    g2.fill(shadow);

}

---