Class GanttRenderer
java.lang.Object
org.jfree.chart.renderer.AbstractRenderer
org.jfree.chart.renderer.category.AbstractCategoryItemRenderer
org.jfree.chart.renderer.category.BarRenderer
org.jfree.chart.renderer.category.IntervalBarRenderer
org.jfree.chart.renderer.category.GanttRenderer
- All Implemented Interfaces:
Serializable,Cloneable,LegendItemSource,CategoryItemRenderer,PublicCloneable
A renderer for simple Gantt charts. The example shown
here is generated by the

GanttDemo1.java program
included in the JFreeChart Demo Collection:

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Field Summary
FieldsModifier and TypeFieldDescriptionprivate PaintThe paint for displaying the percentage complete.private doubleControls the ending edge of the progress indicator (expressed as a percentage of the overall bar width).private PaintThe paint for displaying the incomplete part of a task.private static final longFor serialization.private doubleControls the starting edge of the progress indicator (expressed as a percentage of the overall bar width).Fields inherited from class org.jfree.chart.renderer.category.BarRenderer
BAR_OUTLINE_WIDTH_THRESHOLD, DEFAULT_ITEM_MARGINFields inherited from class org.jfree.chart.renderer.AbstractRenderer
DEFAULT_ITEM_LABEL_INSETS, DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, DEFAULT_PAINT, DEFAULT_SHAPE, DEFAULT_STROKE, DEFAULT_VALUE_LABEL_FONT, DEFAULT_VALUE_LABEL_PAINT, ZERO -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoiddrawItem(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass) Draws the bar for a single (series, category) data item.protected voiddrawTask(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, GanttCategoryDataset dataset, int row, int column) Draws a single task.protected voiddrawTasks(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, GanttCategoryDataset dataset, int row, int column) Draws the tasks/subtasks for one item.booleanTests this renderer for equality with an arbitrary object.Returns the paint used to show the percentage complete.doubleReturns the position of the end of the progress indicator, as a percentage of the bar width.Returns the paint used to show the percentage incomplete.doublegetItemMiddle(Comparable rowKey, Comparable columnKey, CategoryDataset dataset, CategoryAxis axis, Rectangle2D area, RectangleEdge edge) Returns the Java2D coordinate for the middle of the specified data item.doubleReturns the position of the start of the progress indicator, as a percentage of the bar width.private voidreadObject(ObjectInputStream stream) Provides serialization support.voidsetCompletePaint(Paint paint) Sets the paint used to show the percentage complete and sends aRendererChangeEventto all registered listeners.voidsetEndPercent(double percent) Sets the position of the end of the progress indicator, as a percentage of the bar width, and sends aRendererChangeEventto all registered listeners.voidsetIncompletePaint(Paint paint) Sets the paint used to show the percentage incomplete and sends aRendererChangeEventto all registered listeners.voidsetStartPercent(double percent) Sets the position of the start of the progress indicator, as a percentage of the bar width, and sends aRendererChangeEventto all registered listeners.private voidwriteObject(ObjectOutputStream stream) Provides serialization support.Methods inherited from class org.jfree.chart.renderer.category.IntervalBarRenderer
drawInterval, findRangeBoundsMethods inherited from class org.jfree.chart.renderer.category.BarRenderer
calculateBarL0L1, calculateBarW0, calculateBarWidth, calculateSeriesWidth, drawItemLabel, findRangeBounds, getBarPainter, getBase, getDefaultBarPainter, getDefaultShadowsVisible, getGradientPaintTransformer, getIncludeBaseInRange, getItemMargin, getLegendItem, getLowerClip, getMaximumBarWidth, getMinimumBarLength, getNegativeItemLabelPositionFallback, getPositiveItemLabelPositionFallback, getShadowPaint, getShadowsVisible, getShadowXOffset, getShadowYOffset, getUpperClip, initialise, isDrawBarOutline, setBarPainter, setBase, setDefaultBarPainter, setDefaultShadowsVisible, setDrawBarOutline, setGradientPaintTransformer, setIncludeBaseInRange, setItemMargin, setMaximumBarWidth, setMinimumBarLength, setNegativeItemLabelPositionFallback, setPositiveItemLabelPositionFallback, setShadowPaint, setShadowVisible, setShadowXOffset, setShadowYOffsetMethods inherited from class org.jfree.chart.renderer.category.AbstractCategoryItemRenderer
addEntity, addItemEntity, beginElementGroup, calculateDomainMarkerTextAnchorPoint, calculateRangeMarkerTextAnchorPoint, clone, createState, drawBackground, drawDomainGridline, drawDomainMarker, drawItemLabel, drawOutline, drawRangeLine, drawRangeMarker, getColumnCount, getDefaultItemLabelGenerator, getDefaultItemURLGenerator, getDefaultToolTipGenerator, getDomainAxis, getDrawingSupplier, getItemLabelGenerator, getItemURLGenerator, getLegendItemLabelGenerator, getLegendItems, getLegendItemToolTipGenerator, getLegendItemURLGenerator, getPassCount, getPlot, getRangeAxis, getRowCount, getSeriesItemLabelGenerator, getSeriesItemURLGenerator, getSeriesToolTipGenerator, getToolTipGenerator, hashCode, setDefaultItemLabelGenerator, setDefaultItemLabelGenerator, setDefaultItemURLGenerator, setDefaultItemURLGenerator, setDefaultToolTipGenerator, setDefaultToolTipGenerator, setLegendItemLabelGenerator, setLegendItemToolTipGenerator, setLegendItemURLGenerator, setPlot, setSeriesItemLabelGenerator, setSeriesItemLabelGenerator, setSeriesItemURLGenerator, setSeriesItemURLGenerator, setSeriesToolTipGenerator, setSeriesToolTipGenerator, updateCrosshairValuesMethods inherited from class org.jfree.chart.renderer.AbstractRenderer
addChangeListener, beginElementGroup, calculateLabelAnchorPoint, clearSeriesPaints, clearSeriesStrokes, endElementGroup, fireChangeEvent, getAutoPopulateSeriesFillPaint, getAutoPopulateSeriesOutlinePaint, getAutoPopulateSeriesOutlineStroke, getAutoPopulateSeriesPaint, getAutoPopulateSeriesShape, getAutoPopulateSeriesStroke, getDataBoundsIncludesVisibleSeriesOnly, getDefaultCreateEntities, getDefaultEntityRadius, getDefaultFillPaint, getDefaultItemLabelFont, getDefaultItemLabelPaint, getDefaultItemLabelsVisible, getDefaultLegendShape, getDefaultLegendTextFont, getDefaultLegendTextPaint, getDefaultNegativeItemLabelPosition, getDefaultOutlinePaint, getDefaultOutlineStroke, getDefaultPaint, getDefaultPositiveItemLabelPosition, getDefaultSeriesVisible, getDefaultSeriesVisibleInLegend, getDefaultShape, getDefaultStroke, getItemCreateEntity, getItemFillPaint, getItemLabelAnchorOffset, getItemLabelFont, getItemLabelInsets, getItemLabelPaint, getItemOutlinePaint, getItemOutlineStroke, getItemPaint, getItemShape, getItemStroke, getItemVisible, getLegendShape, getLegendTextFont, getLegendTextPaint, getNegativeItemLabelPosition, getPositiveItemLabelPosition, getSeriesCreateEntities, getSeriesFillPaint, getSeriesItemLabelFont, getSeriesItemLabelPaint, getSeriesNegativeItemLabelPosition, getSeriesOutlinePaint, getSeriesOutlineStroke, getSeriesPaint, getSeriesPositiveItemLabelPosition, getSeriesShape, getSeriesStroke, getSeriesVisible, getSeriesVisibleInLegend, getTreatLegendShapeAsLine, hasListener, isComputeItemLabelContrastColor, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, lookupLegendShape, lookupLegendTextFont, lookupLegendTextPaint, lookupSeriesFillPaint, lookupSeriesOutlinePaint, lookupSeriesOutlineStroke, lookupSeriesPaint, lookupSeriesShape, lookupSeriesStroke, notifyListeners, removeChangeListener, setAutoPopulateSeriesFillPaint, setAutoPopulateSeriesOutlinePaint, setAutoPopulateSeriesOutlineStroke, setAutoPopulateSeriesPaint, setAutoPopulateSeriesShape, setAutoPopulateSeriesStroke, setComputeItemLabelContrastColor, setDataBoundsIncludesVisibleSeriesOnly, setDefaultCreateEntities, setDefaultCreateEntities, setDefaultEntityRadius, setDefaultFillPaint, setDefaultFillPaint, setDefaultItemLabelFont, setDefaultItemLabelFont, setDefaultItemLabelPaint, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultLegendShape, setDefaultLegendTextFont, setDefaultLegendTextPaint, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setItemLabelAnchorOffset, setItemLabelInsets, setLegendShape, setLegendTextFont, setLegendTextPaint, setSeriesCreateEntities, setSeriesCreateEntities, setSeriesFillPaint, setSeriesFillPaint, setSeriesItemLabelFont, setSeriesItemLabelFont, setSeriesItemLabelPaint, setSeriesItemLabelPaint, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesNegativeItemLabelPosition, setSeriesNegativeItemLabelPosition, setSeriesOutlinePaint, setSeriesOutlinePaint, setSeriesOutlineStroke, setSeriesOutlineStroke, setSeriesPaint, setSeriesPaint, setSeriesPositiveItemLabelPosition, setSeriesPositiveItemLabelPosition, setSeriesShape, setSeriesShape, setSeriesStroke, setSeriesStroke, setSeriesVisible, setSeriesVisible, setSeriesVisibleInLegend, setSeriesVisibleInLegend, setTreatLegendShapeAsLineMethods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.jfree.chart.renderer.category.CategoryItemRenderer
addChangeListener, getDefaultCreateEntities, getDefaultFillPaint, getDefaultItemLabelFont, getDefaultItemLabelPaint, getDefaultItemLabelsVisible, getDefaultNegativeItemLabelPosition, getDefaultOutlinePaint, getDefaultOutlineStroke, getDefaultPaint, getDefaultPositiveItemLabelPosition, getDefaultSeriesVisible, getDefaultSeriesVisibleInLegend, getDefaultShape, getDefaultStroke, getItemCreateEntity, getItemFillPaint, getItemLabelFont, getItemLabelPaint, getItemOutlinePaint, getItemOutlineStroke, getItemPaint, getItemShape, getItemStroke, getItemVisible, getNegativeItemLabelPosition, getPositiveItemLabelPosition, getSeriesCreateEntities, getSeriesFillPaint, getSeriesItemLabelFont, getSeriesItemLabelPaint, getSeriesNegativeItemLabelPosition, getSeriesOutlinePaint, getSeriesOutlineStroke, getSeriesPaint, getSeriesPositiveItemLabelPosition, getSeriesShape, getSeriesStroke, getSeriesVisible, getSeriesVisibleInLegend, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, removeChangeListener, setDefaultCreateEntities, setDefaultCreateEntities, setDefaultFillPaint, setDefaultItemLabelFont, setDefaultItemLabelFont, setDefaultItemLabelPaint, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setSeriesCreateEntities, setSeriesCreateEntities, setSeriesFillPaint, setSeriesItemLabelFont, setSeriesItemLabelFont, setSeriesItemLabelPaint, setSeriesItemLabelPaint, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesNegativeItemLabelPosition, setSeriesNegativeItemLabelPosition, setSeriesOutlinePaint, setSeriesOutlinePaint, setSeriesOutlineStroke, setSeriesOutlineStroke, setSeriesPaint, setSeriesPaint, setSeriesPositiveItemLabelPosition, setSeriesPositiveItemLabelPosition, setSeriesShape, setSeriesShape, setSeriesStroke, setSeriesStroke, setSeriesVisible, setSeriesVisible, setSeriesVisibleInLegend, setSeriesVisibleInLegendMethods inherited from interface org.jfree.chart.util.PublicCloneable
clone
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Field Details
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serialVersionUID
private static final long serialVersionUIDFor serialization.- See Also:
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completePaint
The paint for displaying the percentage complete. -
incompletePaint
The paint for displaying the incomplete part of a task. -
startPercent
private double startPercentControls the starting edge of the progress indicator (expressed as a percentage of the overall bar width). -
endPercent
private double endPercentControls the ending edge of the progress indicator (expressed as a percentage of the overall bar width).
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Constructor Details
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GanttRenderer
public GanttRenderer()Creates a new renderer.
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Method Details
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getCompletePaint
Returns the paint used to show the percentage complete.- Returns:
- The paint (never
null). - See Also:
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setCompletePaint
Sets the paint used to show the percentage complete and sends aRendererChangeEventto all registered listeners.- Parameters:
paint- the paint (nullnot permitted).- See Also:
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getIncompletePaint
Returns the paint used to show the percentage incomplete.- Returns:
- The paint (never
null). - See Also:
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setIncompletePaint
Sets the paint used to show the percentage incomplete and sends aRendererChangeEventto all registered listeners.- Parameters:
paint- the paint (nullnot permitted).- See Also:
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getStartPercent
public double getStartPercent()Returns the position of the start of the progress indicator, as a percentage of the bar width.- Returns:
- The start percent.
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setStartPercent
public void setStartPercent(double percent) Sets the position of the start of the progress indicator, as a percentage of the bar width, and sends aRendererChangeEventto all registered listeners.- Parameters:
percent- the percent.- See Also:
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getEndPercent
public double getEndPercent()Returns the position of the end of the progress indicator, as a percentage of the bar width.- Returns:
- The end percent.
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setEndPercent
public void setEndPercent(double percent) Sets the position of the end of the progress indicator, as a percentage of the bar width, and sends aRendererChangeEventto all registered listeners.- Parameters:
percent- the percent.- See Also:
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drawItem
public void drawItem(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass) Draws the bar for a single (series, category) data item.- Specified by:
drawItemin interfaceCategoryItemRenderer- Overrides:
drawItemin classIntervalBarRenderer- Parameters:
g2- the graphics device.state- the renderer state.dataArea- the data area.plot- the plot.domainAxis- the domain axis.rangeAxis- the range axis.dataset- the dataset.row- the row index (zero-based).column- the column index (zero-based).pass- the pass index.
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drawTasks
protected void drawTasks(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, GanttCategoryDataset dataset, int row, int column) Draws the tasks/subtasks for one item.- Parameters:
g2- the graphics device.state- the renderer state.dataArea- the data plot area.plot- the plot.domainAxis- the domain axis.rangeAxis- the range axis.dataset- the data.row- the row index (zero-based).column- the column index (zero-based).
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drawTask
protected void drawTask(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, GanttCategoryDataset dataset, int row, int column) Draws a single task.- Parameters:
g2- the graphics device.state- the renderer state.dataArea- the data plot area.plot- the plot.domainAxis- the domain axis.rangeAxis- the range axis.dataset- the data.row- the row index (zero-based).column- the column index (zero-based).
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getItemMiddle
public double getItemMiddle(Comparable rowKey, Comparable columnKey, CategoryDataset dataset, CategoryAxis axis, Rectangle2D area, RectangleEdge edge) Returns the Java2D coordinate for the middle of the specified data item.- Specified by:
getItemMiddlein interfaceCategoryItemRenderer- Overrides:
getItemMiddlein classAbstractCategoryItemRenderer- Parameters:
rowKey- the row key.columnKey- the column key.dataset- the dataset.axis- the axis.area- the drawing area.edge- the edge along which the axis lies.- Returns:
- The Java2D coordinate.
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equals
Tests this renderer for equality with an arbitrary object.- Overrides:
equalsin classIntervalBarRenderer- Parameters:
obj- the object (nullpermitted).- Returns:
- A boolean.
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writeObject
Provides serialization support.- Parameters:
stream- the output stream.- Throws:
IOException- if there is an I/O error.
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readObject
Provides serialization support.- Parameters:
stream- the input stream.- Throws:
IOException- if there is an I/O error.ClassNotFoundException- if there is a classpath problem.
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