org.mov.chart.graph
Class LineGraph

java.lang.Object
  org.mov.chart.graph.AbstractGraph
      org.mov.chart.graph.LineGraph

All Implemented Interfaces:

Graph

public class LineGraph
extends AbstractGraph

Simple line graph. This graph is used to draw any kind of line such as day close, day open, day high, day low etc.

Author:

Andrew Leppard

Field Summary

Fields inherited from interface org.mov.chart.graph.Graph

TOOL_TIP_BUFFER

Constructor Summary

LineGraph(GraphSource source, java.lang.String name, boolean isPrimary)
Create a new simple line graph.

Method Summary

java.lang.String	getName() Return the name of this graph.
java.lang.String	getToolTipText(java.lang.Comparable x, int yCoordinate, int yoffset, double verticalScale, double bottomLineValue) Get the tool tip text for the given X value and y coordinate.
boolean	isPrimary() Return whether the graph is a primary graph.
void	render(java.awt.Graphics g, java.awt.Color colour, int xoffset, int yoffset, double horizontalScale, double verticalScale, double bottomLineValue, java.util.List xRange) Draw the graph.

Methods inherited from class org.mov.chart.graph.AbstractGraph

getAcceptableMajorDeltas, getAcceptableMinorDeltas, getEndX, getHighestY, getLowestY, getSettings, getSource, getSourceName, getStartX, getUI, getXRange, getY, getYLabel, setSettings

Methods inherited from class java.lang.Object

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

Constructor Detail

LineGraph

public LineGraph(GraphSource source,
                 java.lang.String name,
                 boolean isPrimary)

Create a new simple line graph.

Parameters:

source - the source to render

name - the graph name

isPrimary - is this a primary graph?

Method Detail

render

public void render(java.awt.Graphics g,
                   java.awt.Color colour,
                   int xoffset,
                   int yoffset,
                   double horizontalScale,
                   double verticalScale,
                   double bottomLineValue,
                   java.util.List xRange)

Description copied from interface: Graph

Draw the graph.

Parameters:

g - the Graphics object to render to

colour - the colour the graph should be rendered in; override this if the graph should be drawn in a certain colour - such as a Moving Average graph

xoffset - the x offset in the graphics object where the graph starts

yoffset - the y offset in the graphics object where the graph starts

horizontalScale - horizontal scale factor; use this to convert between X value in the xRange to a cartesian coordinate x

verticalScale - vertical scale factor; use this to convert between Y value to a cartesian coordinate y

bottomLineValue - the Y value of the lowest line in the graph

xRange - a List of Comparable that contain the X values to plot

getToolTipText

public java.lang.String getToolTipText(java.lang.Comparable x,
                                       int yCoordinate,
                                       int yoffset,
                                       double verticalScale,
                                       double bottomLineValue)

Description copied from class: AbstractGraph

Get the tool tip text for the given X value and y coordinate.

Specified by:

getToolTipText in interface Graph

Overrides:

getToolTipText in class AbstractGraph

Parameters:

x - the X value

yCoordinate - the y coordinate

yoffset - y offset from top of graph

verticalScale - vertical scale factor

bottomLineValue - the Y value of the lowest line in the graph

Returns:

the tool tip text for the default GraphSource

getName

public java.lang.String getName()

Return the name of this graph.

Returns:

the name given to the constructor

isPrimary

public boolean isPrimary()

Description copied from interface: Graph

Return whether the graph is a primary graph. Primary graphs will appear together in the top chart. Secondary graphs appear in their own charts which are added below. The day close graph is primary; while the day close graph is secondary.

Returns:

true if the graph is a primary graph