Examples with GeneralPath java.awt.geom.GeneralPath used on opensource projects

Example 96 with GeneralPath

use of java.awt.geom.GeneralPath in project knime-core by knime.

the class LinePlotterDrawingPane method paintContent.

/**
 * Connects the points of one column by a line, which is done by modulo
 * calculation, the color information is stored in the
 * {@link org.knime.base.node.viz.plotter.scatter.DotInfo}s.
 *
 * @see org.knime.base.node.viz.plotter.scatter.ScatterPlotterDrawingPane
 * #paintContent(java.awt.Graphics)
 */
@Override
public void paintContent(final Graphics g) {
    if (getDotInfoArray() == null || getDotInfoArray().getDots().length == 0) {
        return;
    }
    ShapeFactory.Shape shape = ShapeFactory.getShape(ShapeFactory.RECTANGLE);
    int dotSize = getDotSize();
    DotInfo[] dotInfo = getDotInfoArray().getDots();
    GeneralPath path = new GeneralPath();
    for (int i = 0; i < dotInfo.length; i++) {
        DotInfo dot1 = dotInfo[i];
        if (m_showDots && dot1.paintDot()) {
            boolean isSelected = getSelectedDots().contains(dotInfo[i].getRowID());
            boolean isHilite = dotInfo[i].isHiLit();
            Color c = dotInfo[i].getColor().getColor();
            int x = dotInfo[i].getXCoord();
            int y = dotInfo[i].getYCoord();
            shape.paint(g, x, y, dotSize, c, isHilite, isSelected, false);
        }
        if (i % m_nrOfLines == 0 && path != null) {
            // start of one line
            path.reset();
            // move to start point
            path.moveTo(dot1.getXCoord(), dot1.getYCoord());
        }
        if (dot1.paintDot()) {
            // if we had a missing value and !interpolate
            if (path == null) {
                path = new GeneralPath();
                path.moveTo(dot1.getXCoord(), dot1.getYCoord());
            } else {
                // add line segment to path
                path.lineTo(dot1.getXCoord(), dot1.getYCoord());
            }
        } else if (path != null) {
            // if not paint dot (y = -1) => missing value && !interpolate
            // we have to close the path and continue a new one
            g.setColor(dot1.getColor().getColor());
            ((Graphics2D) g).setStroke(new BasicStroke(m_thickness));
            ((Graphics2D) g).draw(path);
            path = null;
        }
        if (i % m_nrOfLines == (m_nrOfLines - 1) && path != null) {
            // end of one line -> paint it
            g.setColor(dot1.getColor().getColor());
            ((Graphics2D) g).setStroke(new BasicStroke(m_thickness));
            ((Graphics2D) g).draw(path);
        }
    }
}