Package net.sf.jasperreports.charts.util

Class ChartUtil

java.lang.Object

net.sf.jasperreports.charts.util.ChartUtil

public final class ChartUtil
extends Object

Author:

Teodor Danciu (teodord@users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field	Description
protected static final double	AUTO_TICK_UNIT_FACTOR
protected static final double	AUTO_TICK_UNIT_THRESHOLD

Method Summary

Modifier and Type	Method	Description
org.jfree.chart.axis.TickUnitSource	createIntegerTickUnits(Locale locale)
org.jfree.chart.axis.TickUnitSource	createStandardTickUnits(Locale locale)
static void	drawChart(org.jfree.chart.JFreeChart chart, Graphics2D grx, Rectangle2D rectangle, int reportDpi)	Draws a chart at the resolution of the report.
ChartRenderableFactory	getChartRenderableFactory(String renderType)
static List<JRPrintImageAreaHyperlink>	getImageAreaHyperlinks(org.jfree.chart.JFreeChart chart, ChartHyperlinkProvider chartHyperlinkProvider, Graphics2D grx, Rectangle2D renderingArea, double dpiScale)	Collects the hyperlink areas of a chart laid out on the given area.
static ChartUtil	getInstance(JasperReportsContext jasperReportsContext)
static final org.jfree.chart.plot.PlotOrientation	getPlotOrientation(PlotOrientationEnum plotOrientationEnum)
static final PlotOrientationEnum	getPlotOrientation(org.jfree.chart.plot.PlotOrientation jfcPlotOrientation)
static final Integer	getScaleType(ScaleTypeEnum scaleTypeEnum)
ChartTheme	getTheme(String themeName)
static final TimePeriodEnum	getTimePeriod(Class<?> timePeriodClass)
static final Class<?>	getTimePeriod(TimePeriodEnum timePeriod)
void	setAutoTickUnit(org.jfree.chart.axis.NumberAxis numberAxis)
static Rectangle2D	toChartArea(Rectangle2D rectangle, double dpiScale)	Reduces a rectangle expressed in report pixels to the point based area a chart lays out in.
static float	toChartLength(float reportPixels, int reportDpi)	Converts a length expressed in report pixels into the point based coordinates a chart lays out in, so that paints and shapes derived from the dimensions of the chart element line up with the chart itself.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

AUTO_TICK_UNIT_THRESHOLD

protected static final double AUTO_TICK_UNIT_THRESHOLD

See Also:

• Constant Field Values

AUTO_TICK_UNIT_FACTOR

protected static final double AUTO_TICK_UNIT_FACTOR

See Also:

• Constant Field Values

Method Details

getInstance

public static ChartUtil getInstance(JasperReportsContext jasperReportsContext)

getImageAreaHyperlinks

public static List<JRPrintImageAreaHyperlink> getImageAreaHyperlinks(org.jfree.chart.JFreeChart chart,
 ChartHyperlinkProvider chartHyperlinkProvider,
 Graphics2D grx,
 Rectangle2D renderingArea,
 double dpiScale)

Collects the hyperlink areas of a chart laid out on the given area. The areas come out in the coordinates the chart was laid out in, so they are scaled back to the pixels of the report.

getTheme

public ChartTheme getTheme(String themeName)

drawChart

public static void drawChart(org.jfree.chart.JFreeChart chart,
 Graphics2D grx,
 Rectangle2D rectangle,
 int reportDpi)

Draws a chart at the resolution of the report. Charts lay themselves out using fonts and strokes expressed in points, so at a resolution other than the default they are drawn onto a surface scaled accordingly, on a rectangle reduced by the same amount.

toChartLength

public static float toChartLength(float reportPixels,
 int reportDpi)

Converts a length expressed in report pixels into the point based coordinates a chart lays out in, so that paints and shapes derived from the dimensions of the chart element line up with the chart itself.

toChartArea

public static Rectangle2D toChartArea(Rectangle2D rectangle,
 double dpiScale)

Reduces a rectangle expressed in report pixels to the point based area a chart lays out in.

getChartRenderableFactory

public ChartRenderableFactory getChartRenderableFactory(String renderType)

createIntegerTickUnits

public org.jfree.chart.axis.TickUnitSource createIntegerTickUnits(Locale locale)

createStandardTickUnits

public org.jfree.chart.axis.TickUnitSource createStandardTickUnits(Locale locale)

setAutoTickUnit

public void setAutoTickUnit(org.jfree.chart.axis.NumberAxis numberAxis)

getPlotOrientation

public static final org.jfree.chart.plot.PlotOrientation getPlotOrientation(PlotOrientationEnum plotOrientationEnum)

getPlotOrientation

public static final PlotOrientationEnum getPlotOrientation(org.jfree.chart.plot.PlotOrientation jfcPlotOrientation)

getScaleType

public static final Integer getScaleType(ScaleTypeEnum scaleTypeEnum)

getTimePeriod

public static final TimePeriodEnum getTimePeriod(Class<?> timePeriodClass)

getTimePeriod

public static final Class<?> getTimePeriod(TimePeriodEnum timePeriod)