TableFunctionGraph

java.lang.Object
- edu.hws.jcm.draw.Drawable
- - edu.hws.jcm.functions.TableFunctionGraph

All Implemented Interfaces:

MouseListener, MouseMotionListener, Serializable, EventListener
```
public class TableFunctionGraph
extends Drawable
implements MouseListener, MouseMotionListener
```
A TableFunctionGraph is a Drawable object that can be added to a CoordinateRect (or DisplayCanvas). It draws the graph of a specified TableFunction. A TableFunction is a function and can also be graphed by an object of the class edu.hws.jcm.draw.Graph1D. However, a TableFunctionGraph offers the option of showing the points from the table that defines the function as small disks (true by default) and the option of making the graph "interactive" so that the user can drag the points (false by default).

See Also:

Serialized Form

Field Summary
- Fields inherited from class edu.hws.jcm.draw.Drawable
  canvas, coords

Constructor Summary

Constructors
Constructor and Description
`TableFunctionGraph()` Create a TableFunctionGraph that initially draws no function.
`TableFunctionGraph(TableFunction function)` Create a TableFunctionGraph to draw the specified TableFunction.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`draw(Graphics g, boolean coordsChanged)` Override the draw() method from class Drawable to draw the function.
`Color`	`getColor()` Get the non-null color that is used for drawing the graph.
`TableFunction`	`getFunction()` Get the TableFunction whose graph is drawn by this TableFunctionGraph.
`boolean`	`getInteractive()` Get the value of the interactive property, which is true if the user can modify the function by dragging the points from the table.
`Computable`	`getOnDrag()` Get the Computable that is notified as the user drags a point.
`Computable`	`getOnFinishDrag()` Get the Computable that is notified when the user finishes dragging a point.
`boolean`	`getShowPoints()` Get the showPoints property, which determines whether the points from the table that defines the function are visible as little disks.
`void`	`mouseClicked(MouseEvent evt)` Empty method, required by the MouseListener interface.
`void`	`mouseDragged(MouseEvent evt)` Method required by the MouseListener interface.
`void`	`mouseEntered(MouseEvent evt)` Empty method, required by the MouseMotionListener interface.
`void`	`mouseExited(MouseEvent evt)` Empty method, required by the MouseMotionListener interface.
`void`	`mouseMoved(MouseEvent evt)` Empty method, required by the MouseMotionListener interface.
`void`	`mousePressed(MouseEvent evt)` Method required by the MouseListener interface.
`void`	`mouseReleased(MouseEvent evt)` Method required by the MouseListener interface.
`void`	`setColor(Color c)` Set the color that is used for drawing the graph.
`void`	`setFunction(TableFunction function)` Set the function whose graph is drawn by this TableFunctionGraph.
`void`	`setFunctionStyle(int style)` Provided as a convenience.
`void`	`setInteractive(boolean interactive)` Set the value of the interactive property, which is true if the user can modify the function by dragging the points from the table.
`void`	`setOnDrag(Computable c)` Specify a controller whose compute() method will be called repeatedly as the user drags one of the points from the table function.
`void`	`setOnFinishDrag(Computable c)` Specify a controller whose compute() method will be called once when the user finishes dragging one of the points from the table function.
`protected void`	`setOwnerData(DisplayCanvas canvas, CoordinateRect coords)` Sets the values of member variables canvas and coords.
`void`	`setShowPoints(boolean show)` Set the showPoints property, which determines whether the points from the table that defines the function are visible as little disks.

Methods inherited from class edu.hws.jcm.draw.Drawable
getVisible, needsRedraw, setVisible

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TableFunctionGraph
```
public TableFunctionGraph()
```
    Create a TableFunctionGraph that initially draws no function. A function can be set later with setFunction.
  - TableFunctionGraph
```
public TableFunctionGraph(TableFunction function)
```
    Create a TableFunctionGraph to draw the specified TableFunction.
- Method Detail
  - setFunction
```
public void setFunction(TableFunction function)
```
    Set the function whose graph is drawn by this TableFunctionGraph. If the value is null, nothing is drawn
  - getFunction
```
public TableFunction getFunction()
```
    Get the TableFunction whose graph is drawn by this TableFunctionGraph. If the value is null, then no graph is drawn.
  - setOnDrag
```
public void setOnDrag(Computable c)
```
    Specify a controller whose compute() method will be called repeatedly as the user drags one of the points from the table function. This only applies if the "interactive" property is true.
  - getOnDrag
```
public Computable getOnDrag()
```
    Get the Computable that is notified as the user drags a point.
  - setOnFinishDrag
```
public void setOnFinishDrag(Computable c)
```
    Specify a controller whose compute() method will be called once when the user finishes dragging one of the points from the table function. This only applies if the "interactive" property is true.
  - getOnFinishDrag
```
public Computable getOnFinishDrag()
```
    Get the Computable that is notified when the user finishes dragging a point.
  - setInteractive
```
public void setInteractive(boolean interactive)
```
    Set the value of the interactive property, which is true if the user can modify the function by dragging the points from the table. The default is false.
  - getInteractive
```
public boolean getInteractive()
```
    Get the value of the interactive property, which is true if the user can modify the function by dragging the points from the table.
  - setShowPoints
```
public void setShowPoints(boolean show)
```
    Set the showPoints property, which determines whether the points from the table that defines the function are visible as little disks. The default is true;
  - getShowPoints
```
public boolean getShowPoints()
```
    Get the showPoints property, which determines whether the points from the table that defines the function are visible as little disks.
  - setColor
```
public void setColor(Color c)
```
    Set the color that is used for drawing the graph. The defalt is magenta. If the specified Color value is null, the call to setColor is ignored.
  - getColor
```
public Color getColor()
```
    Get the non-null color that is used for drawing the graph.
  - setOwnerData
```
protected void setOwnerData(DisplayCanvas canvas,
                            CoordinateRect coords)
```
    Sets the values of member variables canvas and coords. This is designed to be called only by the CoordinateRect class. This overrides Drawable.setOwnerData();
    
    Overrides:
    
    setOwnerData in class Drawable
  - setFunctionStyle
```
public void setFunctionStyle(int style)
```
    Provided as a convenience. If the function for this TableFunctionGraph is non-null, its style is set to the specified style, and the graph is redrawn. The parameter should be one of the constants TableFunction.SMOOTH, TableFunction.PIECEWISE_LINEAR, TableFunction.STEP, TableFunction.STEP_LEFT, or TableFunction.STEP_RIGHT.
  - draw
```
public void draw(Graphics g,
                 boolean coordsChanged)
```
    Override the draw() method from class Drawable to draw the function. This is not meant to be called directly.
    
    Specified by:
    
    draw in class Drawable
    
    Parameters:
    
    g - The graphics context in which the Drawble is to be drawn. (The drawing can change the color in g, but should not permanently change font, painting mode, etc. Thus, every drawable is responsible for setting the color it wants to use.)
    
    coordsChanged - Indicates whether the CoordinateRect has changed.
  - mousePressed
```
public void mousePressed(MouseEvent evt)
```
    Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.
    
    Specified by:
    
    mousePressed in interface MouseListener
  - mouseReleased
```
public void mouseReleased(MouseEvent evt)
```
    Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.
    
    Specified by:
    
    mouseReleased in interface MouseListener
  - mouseDragged
```
public void mouseDragged(MouseEvent evt)
```
    Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.
    
    Specified by:
    
    mouseDragged in interface MouseMotionListener
  - mouseClicked
```
public void mouseClicked(MouseEvent evt)
```
    Empty method, required by the MouseListener interface.
    
    Specified by:
    
    mouseClicked in interface MouseListener
  - mouseEntered
```
public void mouseEntered(MouseEvent evt)
```
    Empty method, required by the MouseMotionListener interface.
    
    Specified by:
    
    mouseEntered in interface MouseListener
  - mouseExited
```
public void mouseExited(MouseEvent evt)
```
    Empty method, required by the MouseMotionListener interface.
    
    Specified by:
    
    mouseExited in interface MouseListener
  - mouseMoved
```
public void mouseMoved(MouseEvent evt)
```
    Empty method, required by the MouseMotionListener interface.
    
    Specified by:
    
    mouseMoved in interface MouseMotionListener

Class TableFunctionGraph

Field Summary

Fields inherited from class edu.hws.jcm.draw.Drawable

Constructor Summary

Method Summary

Methods inherited from class edu.hws.jcm.draw.Drawable

Methods inherited from class java.lang.Object

Constructor Detail

TableFunctionGraph

TableFunctionGraph

Method Detail

setFunction

getFunction

setOnDrag

getOnDrag

setOnFinishDrag

getOnFinishDrag

setInteractive

getInteractive

setShowPoints

getShowPoints

setColor

getColor

setOwnerData

setFunctionStyle

draw

mousePressed

mouseReleased

mouseDragged

mouseClicked

mouseEntered

mouseExited

mouseMoved