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Class com.symantec.itools.swing.JChart

Object
   |
   +----Component
           |
           +----Container
                   |
                   +----JComponent
                           |
                           +----com.symantec.itools.swing.JChart

public class JChart

extends JComponent

implements GraphStyle, TableModelListener

Version:

1.0, July 28, 1998

Author:

Michael Hopkins, Symantec

AUTO_CALCULATE_MAX

AUTO_CALCULATE_MIN

debug

graphBorder

graphCols

graphLower

graphMax

graphMin

internal data members

graphStyle

graphUpper

gridIncrementH

gridIncrementV

gridStepV

labelYInset

legendBorder

model

component parameters

numTicksY

precision

showGrid

showLegend

title

titleBorder

yAxisMax

yAxisMin

com.symantec.itools.swing.JChart()

calcLabelInset(Graphics)

calcTickInterval()

Calculates the interval between tick marks on the horizontal axis

calibrateGraph()

drawAreaGraph(Graphics)

drawAxis(Graphics)

drawGrid(Graphics)

drawLegend(Graphics)

Draws the legend of the graph

drawPieGraph(Graphics)

drawPieSeries(Graphics, int, Rectangle, int, int)

drawTitle(Graphics)

drawYAxisTicks(Graphics)

getDataLabel(int, int)

gets the label of a data element associated with a given index of a specific series

getGraphBorder()

gets border insets of the graph

getMinimumSize()

Get the minimum size of the component

getModel()

Gets the current model used by the chart

getNumSeries()

Returns the number of data series that are used in the graph

getNumYTicks()

gets the number of ticks or major subdivisions displayed on the y axis

getPrecision()

gets the precision displayed by the chart.

getPreferredSize()

Get the preferred size of the component

getSeriesColor(int)

gets the default color of a particular series

getSeriesColor(int, int)

gets the color of a particular data element within a series

getSeriesName(int)

gets the name of a series associated with a given index

getSeriesSize(int)

Gets the size (number of elements) of the series referenced by index i

getSeriesValue(int, int)

retrieves a series entry value

getShowGrid()

returns whether or not a grid is displayed as an overlay of the data area

getStyle()

Gets the new graph style.

getTitle()

Gets the title of the graph

getYAxisMax()

gets the maximum on the y axis

getYAxisMin()

gets the minimum or origin value on the y axis

isShowGrid()

returns whether or not a grid is displayed as an overlay of the data area

isShowLegend()

returns whether or not the graph is to display a legend

paintComponent(Graphics)

Draws the contents of the chart component

seriesMax()

finds the highest value (max) in all series

seriesMax(int)

finds the highest value (max) in a series

seriesMin()

finds the lowest value (min) in all series

seriesMin(int)

finds the lowest value (min) in a series

seriesSum(int)

finds the sumation of all data points in a given series

seriesSumMax()

finds the maximum of the summation of all series entries at a given index

setBorder(Border)

Sets the border of the component

setGraphBorder(Insets)

sets the border insets of the graph

setModel(TableModel)

Sets the current model used by the chart.

setNumYTicks(int)

sets the number of ticks or major subdivisions to be displayed on the y axis

setPrecision(int)

sets the precision to be displayed by the chart.

setShowGrid(boolean)

sets whether or not a grid should be displayed as an overlay of the data area

setShowLegend(boolean)

Sets whether the graph is to display a legend or not

setStyle(int)

Sets the new graph style.

setTitle(String)

Sets the title of the graph

setYAxisMax(double)

sets the maximum on the y axis

setYAxisMin(double)

sets the minimum or origin value on the y axis

tableChanged(TableModelEvent)

Responds to notification of changes in the model data

truncDataStr(String)

Graphics utility routines

public static final double AUTO_CALCULATE_MAX

public static final double AUTO_CALCULATE_MIN

protected boolean debug

protected java.awt.Insets graphBorder

protected int graphCols

protected double graphLower

protected double graphMax

protected double graphMin

internal data members

protected int graphStyle

protected double graphUpper

protected int gridIncrementH

protected int gridIncrementV

protected double gridStepV

protected int labelYInset

protected int legendBorder

protected com.sun.java.swing.table.TableModel model

component parameters

protected int numTicksY

protected int precision

protected boolean showGrid

protected boolean showLegend

protected java.lang.String title

protected int titleBorder

protected double yAxisMax

protected double yAxisMin

public JChart()

protected void calcLabelInset(Graphics g)

protected void calcTickInterval()

Calculates the interval between tick marks on the horizontal axis

protected void calibrateGraph()

protected void drawAreaGraph(Graphics g)

protected void drawAxis(Graphics g)

protected void drawGrid(Graphics g)

protected void drawLegend(Graphics g)

Draws the legend of the graph

protected void drawPieGraph(Graphics g)

protected void drawPieSeries(Graphics g,
                             int seriesNum,
                             Rectangle frame,
                             int startAngle,
                             int vLabel)

protected void drawTitle(Graphics g)

protected void drawYAxisTicks(Graphics g)

public java.lang.String getDataLabel(int series,
                                     int index)

gets the label of a data element associated with a given index of a specific series

Parameters:

series - number of the series to use

index - of the data element to use

Returns:

name of the requested series

See Also:

getSeriesName

public java.awt.Insets getGraphBorder()

gets border insets of the graph

Returns:

border of the graph

See Also:

setGraphBorder

public java.awt.Dimension getMinimumSize()

Get the minimum size of the component

Returns:

the minimum dimension of the component

Overrides:

getMinimumSize in class JComponent

public com.sun.java.swing.table.TableModel getModel()

Gets the current model used by the chart

Returns:

the model

See Also:

setModel

public int getNumSeries()

Returns the number of data series that are used in the graph

Returns:

number of series

public int getNumYTicks()

gets the number of ticks or major subdivisions displayed on the y axis

Returns:

int the number of major subdivisions of the y axis

See Also:

setNumYTicks

public int getPrecision()

gets the precision displayed by the chart. Precision is defined as the number of digits after the decimal point that are to be displayed. specifying zero indicates that the number is to be treated as an integer.

Returns:

int the number of places displayed after the decimal

See Also:

setPrecision

public java.awt.Dimension getPreferredSize()

Get the preferred size of the component

Returns:

the dimension of the component

Overrides:

getPreferredSize in class JComponent

public java.awt.Color getSeriesColor(int series)

gets the default color of a particular series

Parameters:

series - index of the series to use

Returns:

color associated with the requested series

public java.awt.Color getSeriesColor(int series,
                                     int index)

gets the color of a particular data element within a series

Parameters:

series - number of the series to use

index - associated with the data element within the series

Returns:

color associated with the requested series

public java.lang.String getSeriesName(int series)

gets the name of a series associated with a given index

Parameters:

series - index of the series to use

Returns:

name of the requested series

public int getSeriesSize(int i)

Gets the size (number of elements) of the series referenced by index i

Parameters:

i - the index of the series

Returns:

the size of the series

Throws: ArrayIndexOutOfBoundsException

public double getSeriesValue(int series,
                             int index)

retrieves a series entry value

Parameters:

series - the number of the series to edit

index - the index of the item to edit

Throws: ArrayIndexOutOfBoundsException

public boolean getShowGrid()

Note: getShowGrid() is deprecated. use isShowGrid instead

returns whether or not a grid is displayed as an overlay of the data area

Returns:

true if a grid is displayed

See Also:

setShowGrid

public int getStyle()

Gets the new graph style.

Returns:

the new border style, one of DEFAULT_STYLE, LINE_STYLE, BAR_STYLE, PIE_STYLE, AREA_STYLE, or SCATTER_STYLE

See Also:

setStyle, DEFAULT_STYLE, LINE_STYLE, BAR_STYLE, PIE_STYLE, AREA_STYLE, SCATTER_STYLE

public java.lang.String getTitle()

Gets the title of the graph

Returns:

String title of the graph

See Also:

setTitle

public double getYAxisMax()

gets the maximum on the y axis

Returns:

the maximum value on the y axis

See Also:

setYAxisMax

public double getYAxisMin()

gets the minimum or origin value on the y axis

Returns:

the minimum or origin value on the y axis

See Also:

setYAxisMin

public boolean isShowGrid()

returns whether or not a grid is displayed as an overlay of the data area

Returns:

true if a grid is displayed

See Also:

getShowGrid

public boolean isShowLegend()

returns whether or not the graph is to display a legend

Returns:

true if graph displays a legend

See Also:

setShowLegend

public void paintComponent(Graphics g)

Draws the contents of the chart component

Parameters:

g - the graphics object to be referenced for drawing

Overrides:

paintComponent in class JComponent

protected double seriesMax()

finds the highest value (max) in all series

Returns:

max value in given series

Throws: ArrayIndexOutOfBoundsException

See Also:

seriesMax( int num )

protected double seriesMax(int num)

finds the highest value (max) in a series

Parameters:

num - the series in which to find the maximum value

Returns:

max value in given series

Throws: ArrayIndexOutOfBoundsException

protected double seriesMin()

finds the lowest value (min) in all series

Returns:

min value in given series

Throws: ArrayIndexOutOfBoundsException

See Also:

seriesMin( int num )

protected double seriesMin(int num)

finds the lowest value (min) in a series

Parameters:

num - the series in which to find the minimum value

Returns:

min value in given series

Throws: ArrayIndexOutOfBoundsException

protected double seriesSum(int num)

finds the sumation of all data points in a given series

Parameters:

num - the series in which to find the sumation

Returns:

sumation of a given series

protected double seriesSumMax()

finds the maximum of the summation of all series entries at a given index

Returns:

maximum graph summation

public void setBorder(Border border)

Sets the border of the component

Overrides:

setBorder in class JComponent

public void setGraphBorder(Insets i)

sets the border insets of the graph

Parameters:

i - graph insets to use

See Also:

getGraphBorder

public void setModel(TableModel newModel)

Sets the current model used by the chart. The model is a TableModel derrivative, and can be composed of objects of type Integer, Long, Double, String, or DataElem

Parameters:

newModel - the TabelModel to be used by the chart

Throws: IllegalArgumentException

if the specified model is null

See Also:

getModel

public void setNumYTicks(int ticks)

sets the number of ticks or major subdivisions to be displayed on the y axis

Parameters:

ticks - the number of major subdivisions to use for the y axis

See Also:

getNumYTicks

public void setPrecision(int places)

sets the precision to be displayed by the chart. Precision is defined as the number of digits after the decimal point that are to be displayed. specifying zero indicates that the number is to be treated as an integer.

Parameters:

places - the number of places to display after the decimal

See Also:

getPrecision

public void setShowGrid(boolean show)

sets whether or not a grid should be displayed as an overlay of the data area

Parameters:

show - true if a grid should be displayed

See Also:

getShowGrid

public void setShowLegend(boolean b)

Sets whether the graph is to display a legend or not

Parameters:

b - true if graph should display a legend

See Also:

isShowLegend

public void setStyle(int style)

Sets the new graph style.

Parameters:

style - the new border style, one of DEFAULT_STYLE, LINE_STYLE, BAR_STYLE, PIE_STYLE, AREA_STYLE, or SCATTER_STYLE

See Also:

getStyle, DEFAULT_STYLE, LINE_STYLE, BAR_STYLE, PIE_STYLE, AREA_STYLE, SCATTER_STYLE

public void setTitle(String s)

Sets the title of the graph

Parameters:

s - title of the graph

See Also:

getTitle

public void setYAxisMax(double max)

sets the maximum on the y axis

Parameters:

max - the maximum value on the y axis

See Also:

getYAxisMax

public void setYAxisMin(double min)

sets the minimum or origin value on the y axis

Parameters:

min - the minimum or origin value on the y axis

See Also:

getYAxisMin

public void tableChanged(TableModelEvent e)

Responds to notification of changes in the model data

Parameters:

e - the event to process

protected java.lang.String truncDataStr(String s)

Graphics utility routines

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