Examples with BarDataModel org.knime.base.node.viz.histogram.datamodel.BarDataModel used on opensource projects

Example 1 with BarDataModel

use of org.knime.base.node.viz.histogram.datamodel.BarDataModel in project knime-core by knime.

the class HistogramDrawingPane method paintContent.

// **********************************************
/*--------- the drawing methods ----------------*/
// **********************************************
/**
 * {@inheritDoc}
 */
@Override
public void paintContent(final Graphics g) {
    final Graphics2D g2 = (Graphics2D) g;
    final Rectangle2D bounds = getBounds();
    String msg = m_infoMsg;
    final AbstractHistogramVizModel vizModel = m_vizModel;
    if (vizModel == null || vizModel.getBins() == null) {
        // if we have no bins and no info message display a no bars info
        if (msg == null) {
            msg = "No bins to display";
        }
    }
    // check if we have to display an information message
    if (msg != null) {
        DrawingUtils.drawMessage(g2, INFO_MSG_FONT, msg, bounds);
        return;
    }
    if (m_updatePropertiesPanel && m_properties != null) {
        m_properties.updateHistogramSettings(vizModel);
        m_updatePropertiesPanel = false;
    }
    // check if we have to draw the grid lines
    if (vizModel.isShowGridLines() && m_gridLines != null) {
        for (final int gridLine : m_gridLines) {
            DrawingUtils.paintHorizontalLine(g2, 0, gridLine, (int) bounds.getWidth(), GRID_LINE_COLOR, GRID_LINE_STROKE);
        }
    }
    // get all variables which are needed multiple times
    final AggregationMethod aggrMethod = vizModel.getAggregationMethod();
    // final Collection<ColorColumn> aggrColumns =
    // vizModel.getAggrColumns();
    final HistogramLayout layout = vizModel.getHistogramLayout();
    // if the user has selected more then one aggregation column we have to
    // draw the bar outline to how him which bar belongs to which aggregation
    // column
    final boolean drawBinOutline = vizModel.isShowBinOutline();
    final boolean drawBarOutline = vizModel.isShowBarOutline();
    // (aggrColumns != null
    // && aggrColumns.size() > 1)
    // || HistogramLayout.SIDE_BY_SIDE.equals(
    // m_vizModel.getHistogramLayout());
    final boolean showElementOutline = vizModel.isShowElementOutline();
    final LabelDisplayPolicy labelDisplayPolicy = vizModel.getLabelDisplayPolicy();
    final boolean showLabelVertical = vizModel.isShowLabelVertical();
    final float barOutlineAlpha;
    if (HistogramLayout.SIDE_BY_SIDE.equals(vizModel.getHistogramLayout())) {
        barOutlineAlpha = BAR_SIDE_BY_SIDE_SURROUNDING_ALPHA;
    } else {
        barOutlineAlpha = BAR_STACKED_SURROUNDING_ALPHA;
    }
    // loop over all bins and paint them
    for (final BinDataModel bin : vizModel.getBins()) {
        if (drawBinOutline) {
            DrawingUtils.drawRectangle(g2, bin.getSurroundingRectangle(), BIN_SURROUNDING_COLOR, BIN_SURROUNDING_STROKE);
        }
        if (!bin.isPresentable()) {
            // the bars doen't fit in this bin so we have to
            // fill the complete bin in black to show it to the user
            DrawingUtils.drawBlock(g2, bin.getBinRectangle(), OVERLOADED_ELEMENT_FILLING, OVERLOADED_ELEMENT_ALPHA);
            if (bin.isSelected()) {
                DrawingUtils.drawRectangle(g2, bin.getBinRectangle(), ELEMENT_SELECTED_OUTLINE_COLOR, ELEMENT_SELECTED_OUTLINE_STROKE);
            }
            if (bin instanceof InteractiveBinDataModel) {
                final InteractiveBinDataModel interactiveBin = (InteractiveBinDataModel) bin;
                drawHiliteRect(g2, interactiveBin.getHiliteRectangle());
            }
            continue;
        }
        final Collection<BarDataModel> bars = bin.getBars();
        for (final BarDataModel bar : bars) {
            if (drawBarOutline) {
                // draw the outline of the bar if we have multiple
                // aggregation columns
                DrawingUtils.drawBlock(g2, bar.getSurroundingRectangle(), bar.getColor(), barOutlineAlpha);
            }
            if (bar.isPresentable()) {
                drawElements(g2, bar.getElements(), showElementOutline);
            } else {
                // the elements doen't fit in this bar so we have to
                // fill the complete bar to show it to the user
                final Rectangle2D barRectangle = bar.getShape();
                DrawingUtils.drawBlock(g2, barRectangle, OVERLOADED_ELEMENT_FILLING, OVERLOADED_ELEMENT_ALPHA);
                if (bar.isSelected()) {
                    DrawingUtils.drawRectangle(g2, barRectangle, ELEMENT_SELECTED_OUTLINE_COLOR, ELEMENT_SELECTED_OUTLINE_STROKE);
                }
                if (bar instanceof InteractiveBarDataModel) {
                    final InteractiveBarDataModel interactiveBar = (InteractiveBarDataModel) bar;
                    drawHiliteRect(g2, interactiveBar.getHiliteShape());
                }
            }
            // draw the bar label at last to have them on top
            drawLabels(g2, bar, aggrMethod, layout, bounds, labelDisplayPolicy, showLabelVertical);
        }
    // end of bar loop
    }
    // check if we have to draw the base line
    if (m_baseLine != null) {
        DrawingUtils.paintHorizontalLine(g2, 0, m_baseLine.intValue(), (int) bounds.getWidth(), BASE_LINE_COLOR, BASE_LINE_STROKE);
    }
    return;
}