org.mov.chart
Class BasicChartUI

java.lang.Object
  javax.swing.plaf.ComponentUI
      org.mov.chart.BasicChartUI

All Implemented Interfaces:

java.awt.image.ImageObserver

public class BasicChartUI
extends javax.swing.plaf.ComponentUI
implements java.awt.image.ImageObserver

Chart Implementation.

Field Summary

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

BasicChartUI()

Method Summary

static javax.swing.plaf.ComponentUI	createUI(javax.swing.JComponent c)
double	getDifference(Chart chart, Coordinate c, Coordinate start, Coordinate end)
double	getDifference(Chart chart, java.lang.Integer x, java.lang.Integer y, Coordinate start, Coordinate end)
java.awt.Color	getGraphColour(Graph graph, Chart chart) Return the colour we will draw the given graph.
java.awt.image.BufferedImage	getImage()
protected int	getLevelAtPoint(int yCoordinate) Return which graph level contains the given y coordinate.
static int	getMinimumHeight(Chart chart) Return the minimum height needed by this component.
static int	getMinimumWidth(Chart chart) Return the minimum width needed by this component.
Coordinate	getMoved(Chart chart, java.lang.Integer x, java.lang.Integer y, Coordinate start, Coordinate end)
java.lang.String	getToolTipText(Chart chart, int xCoordinate, int yCoordinate) Return the tool tip text for the given x, y coordinates.
java.lang.Comparable	getXAtPoint(Chart chart, int xCoordinate) Return the X value at the given x coordinate.
java.lang.Double	getYAtPoint(Chart chart, int yCoordinate) Return the Y value at the given x coordinate.
boolean	imageUpdate(java.awt.Image image, int infofloags, int x, int y, int width, int height)
boolean	intersect(Chart chart, Coordinate c1, Coordinate c2, int delta)
void	paint(java.awt.Graphics g, javax.swing.JComponent c) Paint the component.
void	resetBuffer() Reset the double buffer and force the chart to redraw.

Methods inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, getMaximumSize, getMinimumSize, getPreferredSize, installUI, uninstallUI, update

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicChartUI

public BasicChartUI()

Method Detail

getMinimumWidth

public static int getMinimumWidth(Chart chart)

Return the minimum width needed by this component.

Parameters:

chart - the chart component

getMinimumHeight

public static int getMinimumHeight(Chart chart)

Return the minimum height needed by this component.

Parameters:

chart - the chart component

createUI

public static javax.swing.plaf.ComponentUI createUI(javax.swing.JComponent c)

getXAtPoint

public java.lang.Comparable getXAtPoint(Chart chart,
                                        int xCoordinate)

Return the X value at the given x coordinate.

Parameters:

chart - the chart component

xCoordinate - an x coordinate on the screen

Returns:

the X value at the x coordinate

getYAtPoint

public java.lang.Double getYAtPoint(Chart chart,
                                    int yCoordinate)

Return the Y value at the given x coordinate.

Parameters:

chart - the chart component

yCoordinate - an y coordinate on the screen

Returns:

the Y value at the y coordinate

getLevelAtPoint

protected int getLevelAtPoint(int yCoordinate)

Return which graph level contains the given y coordinate.

Parameters:

yCoordinate - the y coordinate to query

Returns:

the level which contains the y coordinate or 0 if none do

getToolTipText

public java.lang.String getToolTipText(Chart chart,
                                       int xCoordinate,
                                       int yCoordinate)

Return the tool tip text for the given x, y coordinates.

Parameters:

chart - the chart component

xCoordinate - the x coordinate

yCoordinate - the y coordinate

paint

public void paint(java.awt.Graphics g,
                  javax.swing.JComponent c)

Paint the component.

Overrides:

paint in class javax.swing.plaf.ComponentUI

Parameters:

g - the graphics to paint to

c - the chart component

getImage

public java.awt.image.BufferedImage getImage()

getDifference

public double getDifference(Chart chart,
                            java.lang.Integer x,
                            java.lang.Integer y,
                            Coordinate start,
                            Coordinate end)

getDifference

public double getDifference(Chart chart,
                            Coordinate c,
                            Coordinate start,
                            Coordinate end)

getMoved

public Coordinate getMoved(Chart chart,
                           java.lang.Integer x,
                           java.lang.Integer y,
                           Coordinate start,
                           Coordinate end)

intersect

public boolean intersect(Chart chart,
                         Coordinate c1,
                         Coordinate c2,
                         int delta)

resetBuffer

public void resetBuffer()

Reset the double buffer and force the chart to redraw.

imageUpdate

public boolean imageUpdate(java.awt.Image image,
                           int infofloags,
                           int x,
                           int y,
                           int width,
                           int height)

Specified by:

imageUpdate in interface java.awt.image.ImageObserver

getGraphColour

public java.awt.Color getGraphColour(Graph graph,
                                     Chart chart)

Return the colour we will draw the given graph. Note that the graph may choose to override this colour.

Parameters:

graph - the graph to query

chart - the chart component

Returns:

the colour the graph might be