/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* -------------------------
* LineAndShapeRenderer.java
* -------------------------
* (C) Copyright 2001-2009, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): Mark Watson (www.markwatson.com);
* Jeremy Bowman;
* Richard Atkinson;
* Christian W. Zuckschwerdt;
* Peter Kolb (patch 2497611);
*
* Changes
* -------
* 23-Oct-2001 : Version 1 (DG);
* 15-Nov-2001 : Modified to allow for null data values (DG);
* 16-Jan-2002 : Renamed HorizontalCategoryItemRenderer.java
* --> CategoryItemRenderer.java (DG);
* 05-Feb-2002 : Changed return type of the drawCategoryItem method from void
* to Shape, as part of the tooltips implementation (DG);
* 11-May-2002 : Support for value label drawing (JB);
* 29-May-2002 : Now extends AbstractCategoryItemRenderer (DG);
* 25-Jun-2002 : Removed redundant import (DG);
* 05-Aug-2002 : Small modification to drawCategoryItem method to support URLs
* for HTML image maps (RA);
* 26-Sep-2002 : Fixed errors reported by Checkstyle (DG);
* 11-Oct-2002 : Added new constructor to incorporate tool tip and URL
* generators (DG);
* 24-Oct-2002 : Amendments for changes in CategoryDataset interface and
* CategoryToolTipGenerator interface (DG);
* 05-Nov-2002 : Base dataset is now TableDataset not CategoryDataset (DG);
* 06-Nov-2002 : Renamed drawCategoryItem() --> drawItem() and now using axis
* for category spacing (DG);
* 17-Jan-2003 : Moved plot classes to a separate package (DG);
* 10-Apr-2003 : Changed CategoryDataset to KeyedValues2DDataset in drawItem()
* method (DG);
* 12-May-2003 : Modified to take into account the plot orientation (DG);
* 29-Jul-2003 : Amended code that doesn't compile with JDK 1.2.2 (DG);
* 30-Jul-2003 : Modified entity constructor (CZ);
* 22-Sep-2003 : Fixed cloning (DG);
* 10-Feb-2004 : Small change to drawItem() method to make cut-and-paste
* override easier (DG);
* 16-Jun-2004 : Fixed bug (id=972454) with label positioning on horizontal
* charts (DG);
* 15-Oct-2004 : Updated equals() method (DG);
* 05-Nov-2004 : Modified drawItem() signature (DG);
* 11-Nov-2004 : Now uses ShapeUtilities class to translate shapes (DG);
* 27-Jan-2005 : Changed attribute names, modified constructor and removed
* constants (DG);
* 01-Feb-2005 : Removed unnecessary constants (DG);
* 15-Mar-2005 : Fixed bug 1163897, concerning outlines for shapes (DG);
* 13-Apr-2005 : Check flags that control series visibility (DG);
* 20-Apr-2005 : Use generators for legend labels, tooltips and URLs (DG);
* 09-Jun-2005 : Use addItemEntity() method (DG);
* ------------- JFREECHART 1.0.x ---------------------------------------------
* 25-May-2006 : Added check to drawItem() to detect when both the line and
* the shape are not visible (DG);
* 20-Apr-2007 : Updated getLegendItem() for renderer change (DG);
* 17-May-2007 : Set datasetIndex and seriesIndex in getLegendItem() (DG);
* 18-May-2007 : Set dataset and seriesKey for LegendItem (DG);
* 24-Sep-2007 : Deprecated redundant fields/methods (DG);
* 27-Sep-2007 : Added option to offset series x-position within category (DG);
* 17-Jun-2008 : Apply legend shape, font and paint attributes (DG);
* 26-Jun-2008 : Added crosshair support (DG);
* 14-Jan-2009 : Added support for seriesVisible flags (PK);
*
*/
package open.dolphin.impl.lbtest;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.entity.EntityCollection;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.CategoryItemRendererState;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.util.ShapeUtilities;
/**
* IgnoreNullLineRenderer
*
* @author masuda, Masuda Naika
*/
public class IgnoreNullLineRenderer extends LineAndShapeRenderer {
/**
* Draw a single data item.
*
* @param g2 the graphics device.
* @param state the renderer state.
* @param dataArea the area in which the data is drawn.
* @param plot the plot.
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param dataset the dataset.
* @param row the row index (zero-based).
* @param column the column index (zero-based).
* @param pass the pass index.
*/
@Override
public void drawItem(Graphics2D g2, CategoryItemRendererState state,
Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,
ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,
int pass) {
// do nothing if item is not visible
if (!getItemVisible(row, column)) {
return;
}
// do nothing if both the line and shape are not visible
if (!getItemLineVisible(row, column)
&& !getItemShapeVisible(row, column)) {
return;
}
// nothing is drawn for null...
Number v = dataset.getValue(row, column);
if (v == null) {
return;
}
int visibleRow = state.getVisibleSeriesIndex(row);
if (visibleRow < 0) {
return;
}
int visibleRowCount = state.getVisibleSeriesCount();
PlotOrientation orientation = plot.getOrientation();
// current data point...
double x1;
if (getUseSeriesOffset()) {
x1 = domainAxis.getCategorySeriesMiddle(column,
dataset.getColumnCount(), visibleRow, visibleRowCount,
getItemMargin(), dataArea, plot.getDomainAxisEdge());
}
else {
x1 = domainAxis.getCategoryMiddle(column, getColumnCount(),
dataArea, plot.getDomainAxisEdge());
}
double value = v.doubleValue();
double y1 = rangeAxis.valueToJava2D(value, dataArea,
plot.getRangeAxisEdge());
if (pass == 0 && getItemLineVisible(row, column)) {
if (column != 0) {
int prevColumn = getPreviousNotNullColumn(dataset, row, column - 1);
Number previousValue = (prevColumn != -1)
? dataset.getValue(row, prevColumn)
: null;
if (previousValue != null) {
// previous data point...
double previous = previousValue.doubleValue();
double x0;
if (getUseSeriesOffset()) {
x0 = domainAxis.getCategorySeriesMiddle(
prevColumn, dataset.getColumnCount(),
visibleRow, visibleRowCount,
getItemMargin(), dataArea,
plot.getDomainAxisEdge());
}
else {
x0 = domainAxis.getCategoryMiddle(prevColumn,
getColumnCount(), dataArea,
plot.getDomainAxisEdge());
}
double y0 = rangeAxis.valueToJava2D(previous, dataArea,
plot.getRangeAxisEdge());
Line2D line = null;
if (orientation == PlotOrientation.HORIZONTAL) {
line = new Line2D.Double(y0, x0, y1, x1);
}
else if (orientation == PlotOrientation.VERTICAL) {
line = new Line2D.Double(x0, y0, x1, y1);
}
g2.setPaint(getItemPaint(row, column));
g2.setStroke(getItemStroke(row, column));
g2.draw(line);
}
}
}
if (pass == 1) {
Shape shape = getItemShape(row, column);
if (orientation == PlotOrientation.HORIZONTAL) {
shape = ShapeUtilities.createTranslatedShape(shape, y1, x1);
}
else if (orientation == PlotOrientation.VERTICAL) {
shape = ShapeUtilities.createTranslatedShape(shape, x1, y1);
}
if (getItemShapeVisible(row, column)) {
if (getItemShapeFilled(row, column)) {
if (getUseFillPaint()) {
g2.setPaint(getItemFillPaint(row, column));
}
else {
g2.setPaint(getItemPaint(row, column));
}
g2.fill(shape);
}
if (getDrawOutlines()) {
if (getUseOutlinePaint()) {
g2.setPaint(getItemOutlinePaint(row, column));
}
else {
g2.setPaint(getItemPaint(row, column));
}
g2.setStroke(getItemOutlineStroke(row, column));
g2.draw(shape);
}
}
// draw the item label if there is one...
if (isItemLabelVisible(row, column)) {
if (orientation == PlotOrientation.HORIZONTAL) {
drawItemLabel(g2, orientation, dataset, row, column, y1,
x1, (value < 0.0));
}
else if (orientation == PlotOrientation.VERTICAL) {
drawItemLabel(g2, orientation, dataset, row, column, x1,
y1, (value < 0.0));
}
}
// submit the current data point as a crosshair candidate
int datasetIndex = plot.indexOf(dataset);
updateCrosshairValues(state.getCrosshairState(),
dataset.getRowKey(row), dataset.getColumnKey(column),
value, datasetIndex, x1, y1, orientation);
// add an item entity, if this information is being collected
EntityCollection entities = state.getEntityCollection();
if (entities != null) {
addItemEntity(entities, dataset, row, column, shape);
}
}
}
// 非Nullのカラムを探す
private int getPreviousNotNullColumn(CategoryDataset dataset, int row, int col) {
for (int i = col; i >= 0; --i) {
Number prevNum = dataset.getValue(row, i);
if (prevNum != null) {
return i;
}
}
return -1;
}
}